openwrt-xburst/target/linux/ixp4xx/patches/100-npe_driver.patch

diff --git a/Documentation/networking/ixp4xx/IxNpeMicrocode.h b/Documentation/networking/ixp4xx/IxNpeMicrocode.h
new file mode 100644
index 0000000..e5a4bd3
Index: linux-2.6.21-rc1-arm/Documentation/networking/ixp4xx/IxNpeMicrocode.h
===================================================================
--- /dev/null	1970-01-01 00:00:00.000000000 +0000
+++ linux-2.6.21-rc1-arm/Documentation/networking/ixp4xx/IxNpeMicrocode.h	2007-02-21 02:24:35.000000000 -0800
@@ -0,0 +1,143 @@
+/*
+ * IxNpeMicrocode.h - Headerfile for compiling the Intel microcode C file
+ *
+ * Copyright (C) 2006 Christian Hohnstaedt <chohnstaedt@innominate.com>
+ *
+ * This file is released under the GPLv2
+ *
+ *
+ * compile with
+ *
+ * gcc -Wall IxNpeMicrocode.c -o IxNpeMicrocode
+ *
+ * Executing the resulting binary on your build-host creates the
+ * "NPE-[ABC].xxxxxxxx" files containing the selected microcode
+ *
+ * fetch the IxNpeMicrocode.c from the Intel Access Library.
+ * It will include this header.
+ *
+ * select Images for every NPE from the following
+ * (used C++ comments for easy uncommenting ....)
+ */
+
+// #define IX_NPEDL_NPEIMAGE_NPEA_ETH_SPAN_MASK_FIREWALL_VLAN_QOS_HDR_CONV_EXTMIB
+// #define IX_NPEDL_NPEIMAGE_NPEA_ETH_SPAN_VLAN_QOS_HDR_CONV_EXTMIB
+// #define IX_NPEDL_NPEIMAGE_NPEA_ETH_LEARN_FILTER_SPAN_MASK_FIREWALL_VLAN_QOS_EXTMIB
+// #define IX_NPEDL_NPEIMAGE_NPEA_HSS_TSLOT_SWITCH
+// #define IX_NPEDL_NPEIMAGE_NPEA_ETH_SPAN_FIREWALL_VLAN_QOS_HDR_CONV
+// #define IX_NPEDL_NPEIMAGE_NPEA_ETH_LEARN_FILTER_SPAN_FIREWALL_VLAN_QOS
+// #define IX_NPEDL_NPEIMAGE_NPEA_ETH_LEARN_FILTER_SPAN_FIREWALL
+// #define IX_NPEDL_NPEIMAGE_NPEA_HSS_2_PORT
+// #define IX_NPEDL_NPEIMAGE_NPEA_DMA
+// #define IX_NPEDL_NPEIMAGE_NPEA_ATM_MPHY_12_PORT
+// #define IX_NPEDL_NPEIMAGE_NPEA_HSS0_ATM_MPHY_1_PORT
+// #define IX_NPEDL_NPEIMAGE_NPEA_HSS0_ATM_SPHY_1_PORT
+// #define IX_NPEDL_NPEIMAGE_NPEA_HSS0
+// #define IX_NPEDL_NPEIMAGE_NPEA_WEP
+
+
+// #define IX_NPEDL_NPEIMAGE_NPEB_ETH_SPAN_MASK_FIREWALL_VLAN_QOS_HDR_CONV_EXTMIB
+//#define IX_NPEDL_NPEIMAGE_NPEB_ETH_SPAN_VLAN_QOS_HDR_CONV_EXTMIB
+// #define IX_NPEDL_NPEIMAGE_NPEB_ETH_LEARN_FILTER_SPAN_MASK_FIREWALL_VLAN_QOS_EXTMIB
+// #define IX_NPEDL_NPEIMAGE_NPEB_DMA
+// #define IX_NPEDL_NPEIMAGE_NPEB_ETH_SPAN_FIREWALL_VLAN_QOS_HDR_CONV
+// #define IX_NPEDL_NPEIMAGE_NPEB_ETH_LEARN_FILTER_SPAN_FIREWALL_VLAN_QOS
+ #define IX_NPEDL_NPEIMAGE_NPEB_ETH_LEARN_FILTER_SPAN_FIREWALL
+
+
+// #define IX_NPEDL_NPEIMAGE_NPEC_ETH_SPAN_MASK_FIREWALL_VLAN_QOS_HDR_CONV_EXTMIB
+// #define IX_NPEDL_NPEIMAGE_NPEC_ETH_SPAN_VLAN_QOS_HDR_CONV_EXTMIB
+// #define IX_NPEDL_NPEIMAGE_NPEC_ETH_LEARN_FILTER_SPAN_MASK_FIREWALL_VLAN_QOS_EXTMIB
+// #define IX_NPEDL_NPEIMAGE_NPEC_DMA
+// #define IX_NPEDL_NPEIMAGE_NPEC_CRYPTO_AES_ETH_LEARN_FILTER_SPAN
+// #define IX_NPEDL_NPEIMAGE_NPEC_CRYPTO_AES_ETH_LEARN_FILTER_FIREWALL
+ #define IX_NPEDL_NPEIMAGE_NPEC_CRYPTO_AES_CCM_ETH
+// #define IX_NPEDL_NPEIMAGE_NPEC_CRYPTO_ETH_LEARN_FILTER_SPAN_FIREWALL
+// #define IX_NPEDL_NPEIMAGE_NPEC_ETH_SPAN_FIREWALL_VLAN_QOS_HDR_CONV
+// #define IX_NPEDL_NPEIMAGE_NPEC_ETH_LEARN_FILTER_SPAN_FIREWALL_VLAN_QOS
+// #define IX_NPEDL_NPEIMAGE_NPEC_ETH_LEARN_FILTER_SPAN_FIREWALL
+
+
+#include <stdio.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <netinet/in.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <errno.h>
+#include <endian.h>
+#include <byteswap.h>
+#include <string.h>
+
+#if __BYTE_ORDER == __LITTLE_ENDIAN
+#define to_le32(x) (x)
+#define to_be32(x) bswap_32(x)
+#else
+#define to_be32(x) (x)
+#define to_le32(x) bswap_32(x)
+#endif
+
+struct dl_image {
+	unsigned magic;
+	unsigned id;
+	unsigned size;
+	unsigned data[0];
+};
+
+const unsigned IxNpeMicrocode_array[];
+
+int main(int argc, char *argv[])
+{
+	struct dl_image *image = (struct dl_image *)IxNpeMicrocode_array;
+	int imgsiz, i, fd, cnt;
+	const unsigned *arrayptr = IxNpeMicrocode_array;
+	const char *names[] = { "IXP425", "IXP465", "unknown" };
+	int bigendian = 1;
+
+	if (argc > 1) {
+		if (!strcmp(argv[1], "-le"))
+			bigendian = 0;
+		else if (!strcmp(argv[1], "-be"))
+			bigendian = 1;
+		else {
+			printf("Usage: %s <-le|-be>\n", argv[0]);
+			return EXIT_FAILURE;
+		}
+	}
+
+	for (image = (struct dl_image *)arrayptr, cnt=0;
+		(image->id != 0xfeedf00d) && (image->magic == 0xfeedf00d);
+		image = (struct dl_image *)(arrayptr), cnt++)
+	{
+		unsigned char field[4];
+		imgsiz = image->size + 3;
+		*(unsigned*)field = to_be32(image->id);
+		char filename[40], slnk[10];
+
+		sprintf(filename, "NPE-%c.%08x", (field[0] & 0xf) + 'A',
+			image->id);
+		sprintf(slnk, "NPE-%c", (field[0] & 0xf) + 'A');
+		printf("Writing image: %s.NPE_%c Func: %2x Rev: %02x.%02x "
+			"Size: %5d to: '%s'\n",
+			names[field[0] >> 4], (field[0] & 0xf) + 'A',
+			field[1], field[2], field[3], imgsiz*4, filename);
+		fd = open(filename, O_CREAT | O_RDWR | O_TRUNC, 0644);
+		if (fd >= 0) {
+			for (i=0; i<imgsiz; i++) {
+				*(unsigned*)field = bigendian ?
+					to_be32(arrayptr[i]) :
+					to_le32(arrayptr[i]);
+				write(fd, field, sizeof(field));
+			}
+			close(fd);
+			unlink(slnk);
+			symlink(filename, slnk);
+		} else {
+			perror(filename);
+		}
+		arrayptr += imgsiz;
+	}
+	close(fd);
+	return 0;
+}
Index: linux-2.6.21-rc1-arm/Documentation/networking/ixp4xx/README
===================================================================
--- /dev/null	1970-01-01 00:00:00.000000000 +0000
+++ linux-2.6.21-rc1-arm/Documentation/networking/ixp4xx/README	2007-02-21 02:24:35.000000000 -0800
@@ -0,0 +1,62 @@
+Informations about the Networking Driver using the IXP4XX CPU internal NPEs
+and Queue manager.
+
+If this driver is used, the IAL (Intel Access Library) must not be loaded.
+However, the IAL may be loaded, if this Modules are unloaded:
+	ixp4xx_npe.ko, ixp4xx_qmgr.ko ixp4xx_mac.ko
+
+This also means that HW crypto accelleration does NOT work when using this
+driver, unless I have finished my crypto driver for NPE-C
+
+
+Adoption to your custom board:
+------------------------------
+use "arch/arm/mach-ixp4xx/ixdp425-setup.c" as template:
+
+in "static struct mac_plat_info" adopt the entry "phy_id" to your needs
+(Ask your hardware designer about the PHY id)
+
+The order of "&mac0" and "&mac1" in the "struct platform_device"
+determines which of them becomes eth0 and eth1
+
+
+The Microcode:
+---------------
+Solution 1)
+ Configure "CONFIG_HOTPLUG" and "CONFIG_FW_LOADER" and configure
+ IXP4XX_NPE as module.
+ The default hotplug script will load the Firmware from
+ /usr/lib/hotplug/firmware/NPE-[ABC]
+ see Documentation/firmware_class/hotplug-script
+
+ You should take care, that $ACTION is "add" and $SUBSYSTEM is "firmware"
+ to avoid unnessecary calls:
+ test $ACTION = "remove" -o $SUBSYSTEM != "firmware" && exit
+
+Solution 2)
+ create a char-dev: "mknod /dev/misc/npe c 10 184"
+ cat the Microcode into it:
+ cat /usr/lib/hotplug/firmware/NPE-* > /dev/misc/npe
+ This also works if the driver is linked to the kernel
+
+ Having a mix of both (e.g. solution 1 for NPE-B and solution 2 for NPE-C)
+ is perfectly ok and works.
+
+ The state of the NPEs can be seen and changed at:
+ /sys/bus/platform/devices/ixp4xx_npe.X/state
+
+
+Obtaining the Microcode:
+------------------------
+1) IxNpeMicrocode.h in this directory:
+   Download IPL_IXP400NPELIBRARYWITHCRYPTO-2_1.ZIP from Intel
+   It unpacks the Microcode IxNpeMicrocode.c
+   Read the Licence !
+   Compile it with "gcc -Wall IxNpeMicrocode.c -o IxNpeMicrocode" on your host.
+   The resulting images can be moved to "/usr/lib/hotplug/firmware"
+
+2) mc_grab.c in this directory:
+   Compile and execute it either on the host or on the target
+   to grab the microcode from a binary image like the RedBoot bootloader.
+
+
Index: linux-2.6.21-rc1-arm/Documentation/networking/ixp4xx/mc_grab.c
===================================================================
--- /dev/null	1970-01-01 00:00:00.000000000 +0000
+++ linux-2.6.21-rc1-arm/Documentation/networking/ixp4xx/mc_grab.c	2007-02-21 02:24:35.000000000 -0800
@@ -0,0 +1,97 @@
+/*
+ * mc_grab.c  - grabs IXP4XX microcode from a binary datastream
+ * e.g. The redboot bootloader....
+ *
+ * usage: mc_grab 1010200 2010200 < /dev/mtd/0 > /dev/misc/npe
+ *
+ * Copyright (C) 2006 Christian Hohnstaedt <chohnstaedt@innominate.com>
+ *
+ * This file is released under the GPLv2
+ */
+
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <unistd.h>
+#include <netinet/in.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <errno.h>
+#include <string.h>
+
+#define MAX_IMG 6
+
+static void print_mc_info(unsigned id, int siz)
+{
+	unsigned char buf[sizeof(unsigned)];
+	*(unsigned*)buf = id;
+	unsigned idx;
+	const char *names[] = { "IXP425", "IXP465", "unknown" };
+
+	idx = (buf[0] >> 4) < 2 ? (buf[0] >> 4) : 2;
+
+	fprintf(stderr, "Device: %s:NPE_%c Func: %2x Rev: %02x.%02x "
+		"Size: %5d bytes ID:%08x\n", names[idx], (buf[0] & 0xf)+'A',
+		buf[1], buf[2], buf[3], siz*4, ntohl(id));
+}
+
+int main(int argc, char *argv[])
+{
+	int i,j;
+	unsigned char buf[sizeof(unsigned)];
+	unsigned magic = htonl(0xfeedf00d);
+	unsigned id, my_ids[MAX_IMG+1], siz, sizbe;
+	int ret=1, verbose=0;
+
+	for (i=0, j=0; i<argc-1 && j<MAX_IMG; i++) {
+		if (!strcmp(argv[i+1], "-v"))
+			verbose = 1;
+		else
+			my_ids[j++] = htonl(strtoul(argv[i+1], NULL, 16));
+	}
+	my_ids[j] = 0;
+	if (my_ids[0] == 0 && !verbose) {
+		fprintf(stderr, "Usage: %s <-v> [ID1] [ID2] [IDn]\n", argv[0]);
+		return 1;
+	}
+
+	while ((ret=read(0, buf, sizeof(unsigned))) == sizeof(unsigned)) {
+		if (*(unsigned*)buf != magic)
+			continue;
+		if ((ret=read(0, buf, sizeof(unsigned))) != sizeof(unsigned) )
+			break;
+		id = *(unsigned*)buf;
+
+		if (read(0, buf, sizeof(siz)) != sizeof(siz) )
+			break;
+		sizbe = *(unsigned*)buf;
+		siz = ntohl(sizbe);
+
+		if (verbose)
+			print_mc_info(id, siz);
+
+		for(i=0; my_ids[i]; i++)
+			if (id == my_ids[i])
+				break;
+		if (!my_ids[i])
+			continue;
+
+		if (!verbose)
+			print_mc_info(id, siz);
+
+		write(1, &magic, sizeof(magic));
+		write(1, &id, sizeof(id));
+		write(1, &sizbe, sizeof(sizbe));
+		for (i=0; i<siz; i++) {
+			if (read(0, buf, sizeof(unsigned)) != sizeof(unsigned))
+				break;
+			write(1, buf, sizeof(unsigned));
+		}
+		if (i != siz)
+			break;
+	}
+	if (ret)
+		fprintf(stderr, "Error reading  Microcode\n");
+	return ret;
+}
Index: linux-2.6.21-rc1-arm/arch/arm/mach-ixp4xx/common.c
===================================================================
--- linux-2.6.21-rc1-arm.orig/arch/arm/mach-ixp4xx/common.c	2007-02-21 02:24:18.000000000 -0800
+++ linux-2.6.21-rc1-arm/arch/arm/mach-ixp4xx/common.c	2007-02-21 02:24:35.000000000 -0800
@@ -357,6 +357,90 @@
 	&ixp46x_i2c_controller
 };
 
+static struct npe_plat_data npea = {
+	.name		= "NPE-A",
+	.data_size	= 0x800,
+	.inst_size	= 0x1000,
+	.id		= 0,
+};
+
+static struct npe_plat_data npeb = {
+	.name		= "NPE-B",
+	.data_size	= 0x800,
+	.inst_size	= 0x800,
+	.id		= 1,
+};
+
+static struct npe_plat_data npec = {
+	.name		= "NPE-C",
+	.data_size	= 0x800,
+	.inst_size	= 0x800,
+	.id		= 2,
+};
+
+static struct resource res_npea = {
+	.start		= IXP4XX_NPEA_BASE_PHYS,
+	.end		= IXP4XX_NPEA_BASE_PHYS + 0xfff,
+	.flags          = IORESOURCE_MEM,
+};
+
+static struct resource res_npeb = {
+	.start		= IXP4XX_NPEB_BASE_PHYS,
+	.end		= IXP4XX_NPEB_BASE_PHYS + 0xfff,
+	.flags          = IORESOURCE_MEM,
+};
+
+static struct resource res_npec = {
+	.start		= IXP4XX_NPEC_BASE_PHYS,
+	.end		= IXP4XX_NPEC_BASE_PHYS + 0xfff,
+	.flags          = IORESOURCE_MEM,
+};
+
+static struct platform_device dev_npea = {
+	.name           = "ixp4xx_npe",
+	.id             = 0,
+	.dev.platform_data = &npea,
+	.num_resources  = 1,
+	.resource       = &res_npea,
+};
+
+static struct platform_device dev_npeb = {
+	.name           = "ixp4xx_npe",
+	.id             = 1,
+	.dev.platform_data = &npeb,
+	.num_resources  = 1,
+	.resource       = &res_npeb,
+};
+
+static struct platform_device dev_npec = {
+	.name           = "ixp4xx_npe",
+	.id             = 2,
+	.dev.platform_data = &npec,
+	.num_resources  = 1,
+	.resource       = &res_npec,
+};
+
+/* QMGR */
+static struct resource res_qmgr[] = {
+{
+	.start		= IXP4XX_QMGR_BASE_PHYS,
+	.end		= IXP4XX_QMGR_BASE_PHYS + IXP4XX_QMGR_REGION_SIZE -1,
+	.flags          = IORESOURCE_MEM,
+}, {
+	.start          = IRQ_IXP4XX_QM1,
+	.flags          = IORESOURCE_IRQ,
+} };
+
+static struct platform_device qmgr = {
+	.name           = "ixp4xx_qmgr",
+	.id             = 0,
+	.dev		= {
+		.coherent_dma_mask	= DMA_32BIT_MASK,
+	},
+	.num_resources  = ARRAY_SIZE(res_qmgr),
+	.resource       = res_qmgr,
+};
+
 unsigned long ixp4xx_exp_bus_size;
 EXPORT_SYMBOL(ixp4xx_exp_bus_size);
 
@@ -378,8 +462,19 @@
 				break;
 			}
 		}
+		npeb.inst_size = 0x1000;
+		npec.inst_size = 0x1000;
 	}
 
+	platform_device_register(&qmgr);
+
+	if (ix_fuse() & IX_FUSE_NPEA)
+		platform_device_register(&dev_npea);
+	if (ix_fuse() & IX_FUSE_NPEB)
+		platform_device_register(&dev_npeb);
+	if (ix_fuse() & IX_FUSE_NPEC)
+		platform_device_register(&dev_npec);
+
 	printk("IXP4xx: Using %luMiB expansion bus window size\n",
 			ixp4xx_exp_bus_size >> 20);
 }
Index: linux-2.6.21-rc1-arm/arch/arm/mach-ixp4xx/ixdp425-setup.c
===================================================================
--- linux-2.6.21-rc1-arm.orig/arch/arm/mach-ixp4xx/ixdp425-setup.c	2007-02-21 02:24:18.000000000 -0800
+++ linux-2.6.21-rc1-arm/arch/arm/mach-ixp4xx/ixdp425-setup.c	2007-02-21 02:24:35.000000000 -0800
@@ -101,10 +101,59 @@
 	.resource		= ixdp425_uart_resources
 };
 
+/* MACs */
+static struct resource res_mac0 = {
+	.start		= IXP4XX_EthB_BASE_PHYS,
+	.end		= IXP4XX_EthB_BASE_PHYS + 0x1ff,
+	.flags          = IORESOURCE_MEM,
+};
+
+static struct resource res_mac1 = {
+	.start		= IXP4XX_EthC_BASE_PHYS,
+	.end		= IXP4XX_EthC_BASE_PHYS + 0x1ff,
+	.flags          = IORESOURCE_MEM,
+};
+
+static struct mac_plat_info plat_mac0 = {
+	.npe_id		= 1,
+	.phy_id		= 0,
+	.eth_id		= 0,
+	.rxq_id		= 27,
+	.txq_id		= 24,
+	.rxdoneq_id	= 4,
+};
+
+static struct mac_plat_info plat_mac1 = {
+	.npe_id		= 2,
+	.phy_id		= 1,
+	.eth_id		= 1,
+	.rxq_id		= 28,
+	.txq_id		= 25,
+	.rxdoneq_id	= 5,
+};
+
+static struct platform_device mac0 = {
+	.name           = "ixp4xx_mac",
+	.id             = 0,
+	.dev.platform_data = &plat_mac0,
+	.num_resources  = 1,
+	.resource       = &res_mac0,
+};
+
+static struct platform_device mac1 = {
+	.name           = "ixp4xx_mac",
+	.id             = 1,
+	.dev.platform_data = &plat_mac1,
+	.num_resources  = 1,
+	.resource       = &res_mac1,
+};
+
 static struct platform_device *ixdp425_devices[] __initdata = {
 	&ixdp425_i2c_controller,
 	&ixdp425_flash,
-	&ixdp425_uart
+	&ixdp425_uart,
+	&mac0,
+	&mac1,
 };
 
 static void __init ixdp425_init(void)
Index: linux-2.6.21-rc1-arm/drivers/net/Kconfig
===================================================================
--- linux-2.6.21-rc1-arm.orig/drivers/net/Kconfig	2007-02-21 02:24:18.000000000 -0800
+++ linux-2.6.21-rc1-arm/drivers/net/Kconfig	2007-02-21 02:24:35.000000000 -0800
@@ -201,6 +201,8 @@
 
 source "drivers/net/arm/Kconfig"
 
+source "drivers/net/ixp4xx/Kconfig"
+
 config MACE
 	tristate "MACE (Power Mac ethernet) support"
 	depends on NET_ETHERNET && PPC_PMAC && PPC32
Index: linux-2.6.21-rc1-arm/drivers/net/Makefile
===================================================================
--- linux-2.6.21-rc1-arm.orig/drivers/net/Makefile	2007-02-21 02:24:18.000000000 -0800
+++ linux-2.6.21-rc1-arm/drivers/net/Makefile	2007-02-21 02:24:35.000000000 -0800
@@ -212,6 +212,7 @@
 obj-$(CONFIG_IRDA) += irda/
 obj-$(CONFIG_ETRAX_ETHERNET) += cris/
 obj-$(CONFIG_ENP2611_MSF_NET) += ixp2000/
+obj-$(CONFIG_IXP4XX_NPE) += ixp4xx/
 
 obj-$(CONFIG_NETCONSOLE) += netconsole.o
 
Index: linux-2.6.21-rc1-arm/drivers/net/ixp4xx/Kconfig
===================================================================
--- /dev/null	1970-01-01 00:00:00.000000000 +0000
+++ linux-2.6.21-rc1-arm/drivers/net/ixp4xx/Kconfig	2007-02-21 02:24:35.000000000 -0800
@@ -0,0 +1,48 @@
+config IXP4XX_QMGR
+	tristate "IXP4xx Queue Manager support"
+	depends on ARCH_IXP4XX
+	depends on NET_ETHERNET
+	help
+	  The IXP4XX Queue manager is a configurable hardware ringbuffer.
+	  It is used by the NPEs to exchange data from and to the CPU.
+	  You can either use this OR the Intel Access Library (IAL)
+
+config IXP4XX_NPE
+	tristate "IXP4xx NPE support"
+	depends on ARCH_IXP4XX
+	depends on NET_ETHERNET
+	help
+	  The IXP4XX NPE driver supports the 3 CPU co-processors called
+	  "Network Processing Engines" (NPE). It adds support fo downloading
+	  the Microcode (firmware) via Hotplug or  character-special-device.
+	  More about this at: Documentation/networking/ixp4xx/README.
+	  You can either use this OR the Intel Access Library (IAL)
+
+config IXP4XX_FW_LOAD
+	bool "Use Firmware hotplug for Microcode download"
+	depends on IXP4XX_NPE
+	select HOTPLUG
+	select FW_LOADER
+	help
+	  The default hotplug script will load the Firmware from
+	  /usr/lib/hotplug/firmware/NPE-[ABC]
+	  see Documentation/firmware_class/hotplug-script
+
+config IXP4XX_MAC
+	tristate "IXP4xx MAC support"
+	depends on IXP4XX_NPE
+	depends on IXP4XX_QMGR
+	depends on NET_ETHERNET
+	select MII
+	help
+	  The IXP4XX MAC driver supports the MACs on the IXP4XX CPUs.
+	  There are 2 on ixp425 and up to 5 on ixdp465.
+	  You can either use this OR the Intel Access Library (IAL)
+
+config IXP4XX_CRYPTO
+	tristate "IXP4xx crypto support"
+	depends on IXP4XX_NPE
+	depends on IXP4XX_QMGR
+	help
+	  This driver is a generic NPE-crypto access layer.
+	  You need additional code in OCF for example.
Index: linux-2.6.21-rc1-arm/drivers/net/ixp4xx/Makefile
===================================================================
--- /dev/null	1970-01-01 00:00:00.000000000 +0000
+++ linux-2.6.21-rc1-arm/drivers/net/ixp4xx/Makefile	2007-02-21 02:24:35.000000000 -0800
@@ -0,0 +1,7 @@
+obj-$(CONFIG_IXP4XX_QMGR) += ixp4xx_qmgr.o
+obj-$(CONFIG_IXP4XX_NPE) += ixp4xx_npe.o
+obj-$(CONFIG_IXP4XX_MAC) += ixp4xx_mac.o
+obj-$(CONFIG_IXP4XX_CRYPTO) += ixp4xx_crypto.o
+
+ixp4xx_npe-objs := ucode_dl.o npe_mh.o npe.o
+ixp4xx_mac-objs := mac_driver.o phy.o
Index: linux-2.6.21-rc1-arm/drivers/net/ixp4xx/ixp4xx_crypto.c
===================================================================
--- /dev/null	1970-01-01 00:00:00.000000000 +0000
+++ linux-2.6.21-rc1-arm/drivers/net/ixp4xx/ixp4xx_crypto.c	2007-02-21 02:24:35.000000000 -0800
@@ -0,0 +1,851 @@
+/*
+ * ixp4xx_crypto.c - interface to the HW crypto
+ *
+ * Copyright (C) 2006 Christian Hohnstaedt <chohnstaedt@innominate.com>
+ *
+ * This file is released under the GPLv2
+ */
+
+#include <linux/ixp_qmgr.h>
+#include <linux/ixp_npe.h>
+#include <linux/dma-mapping.h>
+#include <linux/dmapool.h>
+#include <linux/device.h>
+#include <linux/delay.h>
+#include <linux/slab.h>
+#include <linux/kernel.h>
+#include <linux/ixp_crypto.h>
+
+#define SEND_QID 29
+#define RECV_QID 30
+
+#define NPE_ID   2 /* NPE C */
+
+#define QUEUE_SIZE 64
+#define MY_VERSION "0.0.1"
+
+/* local head for all sa_ctx */
+static struct ix_sa_master sa_master;
+
+static const struct ix_hash_algo _hash_algos[] = {
+{
+	.name		= "MD5",
+	.cfgword	= 0xAA010004,
+	.digest_len	= 16,
+	.icv		= "\x01\x23\x45\x67\x89\xAB\xCD\xEF"
+			"\xFE\xDC\xBA\x98\x76\x54\x32\x10",
+	.type		= HASH_TYPE_MD5,
+},{
+	.name		= "SHA1",
+	.cfgword	= 0x00000005,
+	.digest_len	= 20,
+	.icv		= "\x67\x45\x23\x01\xEF\xCD\xAB\x89\x98\xBA"
+			"\xDC\xFE\x10\x32\x54\x76\xC3\xD2\xE1\xF0",
+	.type		= HASH_TYPE_SHA1,
+#if 0
+},{
+	.name		= "CBC MAC",
+	.digest_len	= 64,
+	.aad_len	= 48,
+	.type		= HASH_TYPE_CBCMAC,
+#endif
+} };
+
+static const struct ix_cipher_algo _cipher_algos[] = {
+{
+	.name		= "DES ECB",
+	.cfgword_enc	= CIPH_ENCR | MOD_DES | MOD_ECB | KEYLEN_192,
+	.cfgword_dec	= CIPH_DECR | MOD_DES | MOD_ECB | KEYLEN_192,
+	.block_len	= 8,
+	.type		= CIPHER_TYPE_DES,
+	.mode		= CIPHER_MODE_ECB,
+},{
+	.name		= "DES CBC",
+	.cfgword_enc	= CIPH_ENCR | MOD_DES | MOD_CBC_ENC | KEYLEN_192,
+	.cfgword_dec	= CIPH_DECR | MOD_DES | MOD_CBC_DEC | KEYLEN_192,
+	.iv_len		= 8,
+	.block_len	= 8,
+	.type		= CIPHER_TYPE_DES,
+	.mode		= CIPHER_MODE_CBC,
+},{
+	.name		= "3DES ECB",
+	.cfgword_enc	= CIPH_ENCR | MOD_TDEA3 | MOD_ECB | KEYLEN_192,
+	.cfgword_dec	= CIPH_DECR | MOD_TDEA3 | MOD_ECB | KEYLEN_192,
+	.block_len	= 8,
+	.type		= CIPHER_TYPE_3DES,
+	.mode		= CIPHER_MODE_ECB,
+},{
+	.name		= "3DES CBC",
+	.cfgword_enc	= CIPH_ENCR | MOD_TDEA3 | MOD_CBC_ENC | KEYLEN_192,
+	.cfgword_dec	= CIPH_DECR | MOD_TDEA3 | MOD_CBC_DEC | KEYLEN_192,
+	.iv_len		= 8,
+	.block_len	= 8,
+	.type		= CIPHER_TYPE_3DES,
+	.mode		= CIPHER_MODE_CBC,
+},{
+	.name		= "AES ECB",
+	.cfgword_enc	= CIPH_ENCR | ALGO_AES | MOD_ECB,
+	.cfgword_dec	= CIPH_DECR | ALGO_AES | MOD_ECB,
+	.block_len	= 16,
+	.type		= CIPHER_TYPE_AES,
+	.mode		= CIPHER_MODE_ECB,
+},{
+	.name		= "AES CBC",
+	.cfgword_enc	= CIPH_ENCR | ALGO_AES | MOD_CBC_ENC,
+	.cfgword_dec	= CIPH_DECR | ALGO_AES | MOD_CBC_DEC,
+	.block_len	= 16,
+	.iv_len		= 16,
+	.type		= CIPHER_TYPE_AES,
+	.mode		= CIPHER_MODE_CBC,
+},{
+	.name		= "AES CTR",
+	.cfgword_enc	= CIPH_ENCR | ALGO_AES | MOD_CTR,
+	.cfgword_dec	= CIPH_ENCR | ALGO_AES | MOD_CTR,
+	.block_len	= 16,
+	.iv_len		= 16,
+	.type		= CIPHER_TYPE_AES,
+	.mode		= CIPHER_MODE_CTR,
+#if 0
+},{
+	.name		= "AES CCM",
+	.cfgword_enc	= CIPH_ENCR | ALGO_AES | MOD_CCM_ENC,
+	.cfgword_dec	= CIPH_ENCR | ALGO_AES | MOD_CCM_DEC,
+	.block_len	= 16,
+	.iv_len		= 16,
+	.type		= CIPHER_TYPE_AES,
+	.mode		= CIPHER_MODE_CCM,
+#endif
+} };
+
+const struct ix_hash_algo *ix_hash_by_id(int type)
+{
+	int i;
+
+	for(i=0; i<ARRAY_SIZE(_hash_algos); i++) {
+		if (_hash_algos[i].type == type)
+			return _hash_algos + i;
+	}
+	return NULL;
+}
+
+const struct ix_cipher_algo *ix_cipher_by_id(int type, int mode)
+{
+	int i;
+
+	for(i=0; i<ARRAY_SIZE(_cipher_algos); i++) {
+		if (_cipher_algos[i].type==type && _cipher_algos[i].mode==mode)
+			return _cipher_algos + i;
+	}
+	return NULL;
+}
+
+static void irqcb_recv(struct qm_queue *queue);
+
+static int init_sa_master(struct ix_sa_master *master)
+{
+	struct npe_info *npe;
+	int ret = -ENODEV;
+
+	if (! (ix_fuse() & (IX_FUSE_HASH | IX_FUSE_AES | IX_FUSE_DES))) {
+		printk(KERN_ERR "ixp_crypto: No HW crypto available\n");
+		return ret;
+	}
+	memset(master, 0, sizeof(struct ix_sa_master));
+	master->npe_dev = get_npe_by_id(NPE_ID);
+	if (! master->npe_dev)
+		goto err;
+
+	npe = dev_get_drvdata(master->npe_dev);
+
+	if (npe_status(npe) & IX_NPEDL_EXCTL_STATUS_RUN) {
+		switch (npe->img_info[1]) {
+		case 4:
+			printk(KERN_INFO "Crypto AES avaialable\n");
+			break;
+		case 5:
+			printk(KERN_INFO "Crypto AES and CCM avaialable\n");
+			break;
+		default:
+			printk(KERN_WARNING "Current microcode for %s has no"
+				" crypto capabilities\n", npe->plat->name);
+			break;
+		}
+	}
+	rwlock_init(&master->lock);
+	master->dmapool = dma_pool_create("ixp4xx_crypto", master->npe_dev,
+			sizeof(struct npe_crypt_cont), 32, 0);
+	if (!master->dmapool) {
+		ret = -ENOMEM;
+		goto err;
+	}
+	master->sendq = request_queue(SEND_QID, QUEUE_SIZE);
+	if (IS_ERR(master->sendq)) {
+		printk(KERN_ERR "ixp4xx_crypto: Error requesting Q: %d\n",
+				SEND_QID);
+		ret = PTR_ERR(master->sendq);
+		goto err;
+	}
+	master->recvq = request_queue(RECV_QID, QUEUE_SIZE);
+	if (IS_ERR(master->recvq)) {
+		printk(KERN_ERR "ixp4xx_crypto: Error requesting Q: %d\n",
+				RECV_QID);
+		ret = PTR_ERR(master->recvq);
+		release_queue(master->sendq);
+		goto err;
+	}
+
+	master->recvq->irq_cb = irqcb_recv;
+	queue_set_watermarks(master->recvq, 0, 0);
+	queue_set_irq_src(master->recvq, Q_IRQ_ID_NOT_E);
+	queue_enable_irq(master->recvq);
+	printk(KERN_INFO "ixp4xx_crypto " MY_VERSION " registered successfully\n");
+
+	return 0;
+err:
+	if (master->dmapool)
+		dma_pool_destroy(master->dmapool);
+	if (! master->npe_dev)
+		put_device(master->npe_dev);
+	return ret;
+
+}
+
+static void release_sa_master(struct ix_sa_master *master)
+{
+	struct npe_crypt_cont *cont;
+	unsigned long flags;
+
+	write_lock_irqsave(&master->lock, flags);
+	while (master->pool) {
+		cont = master->pool;
+		master->pool = cont->next;
+		dma_pool_free(master->dmapool, cont, cont->phys);
+		master->pool_size--;
+	}
+	write_unlock_irqrestore(&master->lock, flags);
+	if (master->pool_size) {
+		printk(KERN_ERR "ixp4xx_crypto: %d items lost from DMA pool\n",
+				master->pool_size);
+	}
+
+	dma_pool_destroy(master->dmapool);
+	release_queue(master->sendq);
+	release_queue(master->recvq);
+	return_npe_dev(master->npe_dev);
+}
+
+static struct npe_crypt_cont *ix_sa_get_cont(struct ix_sa_master *master)
+{
+	unsigned long flags;
+	struct npe_crypt_cont *cont;
+	dma_addr_t handle;
+
+	write_lock_irqsave(&master->lock, flags);
+	if (!master->pool) {
+		cont = dma_pool_alloc(master->dmapool, GFP_ATOMIC, &handle);
+		if (cont) {
+			master->pool_size++;
+			cont->phys = handle;
+			cont->virt = cont;
+		}
+	} else {
+		cont = master->pool;
+		master->pool = cont->next;
+	}
+	write_unlock_irqrestore(&master->lock, flags);
+	return cont;
+}
+
+static void
+ix_sa_return_cont(struct ix_sa_master *master,struct npe_crypt_cont *cont)
+{
+	unsigned long flags;
+
+	write_lock_irqsave(&master->lock, flags);
+	cont->next = master->pool;
+	master->pool = cont;
+	write_unlock_irqrestore(&master->lock, flags);
+}
+
+static void free_sa_dir(struct ix_sa_ctx *sa_ctx, struct ix_sa_dir *dir)
+{
+	memset(dir->npe_ctx, 0, NPE_CTX_LEN);
+	dma_pool_free(sa_ctx->master->dmapool, dir->npe_ctx,
+			dir->npe_ctx_phys);
+}
+
+static void ix_sa_ctx_destroy(struct ix_sa_ctx *sa_ctx)
+{
+	BUG_ON(sa_ctx->state != STATE_UNLOADING);
+	free_sa_dir(sa_ctx, &sa_ctx->encrypt);
+	free_sa_dir(sa_ctx, &sa_ctx->decrypt);
+	kfree(sa_ctx);
+	module_put(THIS_MODULE);
+}
+
+static void recv_pack(struct qm_queue *queue, u32 phys)
+{
+	struct ix_sa_ctx *sa_ctx;
+	struct npe_crypt_cont *cr_cont;
+	struct npe_cont *cont;
+	int failed;
+
+	failed = phys & 0x1;
+	phys &= ~0x3;
+
+	cr_cont = dma_to_virt(queue->dev, phys);
+	cr_cont = cr_cont->virt;
+	sa_ctx = cr_cont->ctl.crypt.sa_ctx;
+
+	phys = npe_to_cpu32(cr_cont->ctl.crypt.src_buf);
+	if (phys) {
+		cont = dma_to_virt(queue->dev, phys);
+		cont = cont->virt;
+	} else {
+		cont = NULL;
+	}
+	if (cr_cont->ctl.crypt.oper_type == OP_PERFORM) {
+		dma_unmap_single(sa_ctx->master->npe_dev,
+				cont->eth.phys_addr,
+				cont->eth.buf_len,
+				DMA_BIDIRECTIONAL);
+		if (sa_ctx->perf_cb)
+			sa_ctx->perf_cb(sa_ctx, cont->data, failed);
+		qmgr_return_cont(dev_get_drvdata(queue->dev), cont);
+		ix_sa_return_cont(sa_ctx->master, cr_cont);
+		if (atomic_dec_and_test(&sa_ctx->use_cnt))
+			ix_sa_ctx_destroy(sa_ctx);
+		return;
+	}
+
+	/* We are registering */
+	switch (cr_cont->ctl.crypt.mode) {
+	case NPE_OP_HASH_GEN_ICV:
+		/* 1 out of 2 HMAC preparation operations completed */
+		dma_unmap_single(sa_ctx->master->npe_dev,
+				cont->eth.phys_addr,
+				cont->eth.buf_len,
+				DMA_TO_DEVICE);
+		kfree(cont->data);
+		qmgr_return_cont(dev_get_drvdata(queue->dev), cont);
+		break;
+	case NPE_OP_ENC_GEN_KEY:
+		memcpy(sa_ctx->decrypt.npe_ctx + sizeof(u32),
+			sa_ctx->rev_aes->ctl.rev_aes_key + sizeof(u32),
+			sa_ctx->c_key.len);
+		/* REV AES data not needed anymore, free it */
+		ix_sa_return_cont(sa_ctx->master, sa_ctx->rev_aes);
+		sa_ctx->rev_aes = NULL;
+		break;
+	default:
+		printk(KERN_ERR "Unknown crypt-register mode: %x\n",
+				cr_cont->ctl.crypt.mode);
+
+	}
+	if (cr_cont->ctl.crypt.oper_type == OP_REG_DONE) {
+		if (sa_ctx->state == STATE_UNREGISTERED)
+			sa_ctx->state = STATE_REGISTERED;
+		if (sa_ctx->reg_cb)
+			sa_ctx->reg_cb(sa_ctx, failed);
+	}
+	ix_sa_return_cont(sa_ctx->master, cr_cont);
+	if (atomic_dec_and_test(&sa_ctx->use_cnt))
+		ix_sa_ctx_destroy(sa_ctx);
+}
+
+static void irqcb_recv(struct qm_queue *queue)
+{
+	u32 phys;
+
+	queue_ack_irq(queue);
+	while ((phys = queue_get_entry(queue)))
+		recv_pack(queue, phys);
+}
+
+static int init_sa_dir(struct ix_sa_ctx *sa_ctx, struct ix_sa_dir *dir)
+{
+	dir->npe_ctx = dma_pool_alloc(sa_ctx->master->dmapool,
+			sa_ctx->gfp_flags, &dir->npe_ctx_phys);
+	if (!dir->npe_ctx) {
+		return 1;
+	}
+	memset(dir->npe_ctx, 0, NPE_CTX_LEN);
+	return 0;
+}
+
+struct ix_sa_ctx *ix_sa_ctx_new(int priv_len, gfp_t flags)
+{
+	struct ix_sa_ctx *sa_ctx;
+	struct ix_sa_master *master = &sa_master;
+	struct npe_info *npe = dev_get_drvdata(master->npe_dev);
+
+	/* first check if Microcode was downloaded into this NPE */
+	if (!( npe_status(npe) & IX_NPEDL_EXCTL_STATUS_RUN)) {
+		printk(KERN_ERR "%s not running\n", npe->plat->name);
+		return NULL;
+	}
+	switch (npe->img_info[1]) {
+		case 4:
+		case 5:
+			break;
+		default:
+			/* No crypto Microcode */
+			return NULL;
+	}
+	if (!try_module_get(THIS_MODULE)) {
+		return NULL;
+	}
+
+	sa_ctx = kzalloc(sizeof(struct ix_sa_ctx) + priv_len, flags);
+	if (!sa_ctx) {
+		goto err_put;
+	}
+
+	sa_ctx->master = master;
+	sa_ctx->gfp_flags = flags;
+
+	if (init_sa_dir(sa_ctx, &sa_ctx->encrypt))
+		goto err_free;
+	if (init_sa_dir(sa_ctx, &sa_ctx->decrypt)) {
+		free_sa_dir(sa_ctx, &sa_ctx->encrypt);
+		goto err_free;
+	}
+	if (priv_len)
+		sa_ctx->priv = sa_ctx + 1;
+
+	atomic_set(&sa_ctx->use_cnt, 1);
+	return sa_ctx;
+
+err_free:
+	 kfree(sa_ctx);
+err_put:
+	 module_put(THIS_MODULE);
+	 return NULL;
+}
+
+void ix_sa_ctx_free(struct ix_sa_ctx *sa_ctx)
+{
+	sa_ctx->state = STATE_UNLOADING;
+	if (atomic_dec_and_test(&sa_ctx->use_cnt))
+		ix_sa_ctx_destroy(sa_ctx);
+	else
+		printk("ix_sa_ctx_free -> delayed: %p %d\n",
+				sa_ctx, atomic_read(&sa_ctx->use_cnt));
+}
+
+/* http://www.ietf.org/rfc/rfc2104.txt */
+#define HMAC_IPAD_VALUE 0x36
+#define HMAC_OPAD_VALUE 0x5C
+#define PAD_BLOCKLEN 64
+
+static int register_chain_var(struct ix_sa_ctx *sa_ctx,
+	unsigned char *pad, u32 target, int init_len, u32 ctx_addr, int oper)
+{
+	struct npe_crypt_cont *cr_cont;
+	struct npe_cont *cont;
+
+	cr_cont = ix_sa_get_cont(sa_ctx->master);
+	if (!cr_cont)
+		return -ENOMEM;
+
+	cr_cont->ctl.crypt.sa_ctx = sa_ctx;
+	cr_cont->ctl.crypt.auth_offs = 0;
+	cr_cont->ctl.crypt.auth_len =cpu_to_npe16(PAD_BLOCKLEN);
+	cr_cont->ctl.crypt.crypto_ctx = cpu_to_npe32(ctx_addr);
+
+	cont = qmgr_get_cont(dev_get_drvdata(sa_ctx->master->sendq->dev));
+	if (!cont) {
+		ix_sa_return_cont(sa_ctx->master, cr_cont);
+		return -ENOMEM;
+	}
+
+	cont->data = pad;
+	cont->eth.next = 0;
+	cont->eth.buf_len = cpu_to_npe16(PAD_BLOCKLEN);
+	cont->eth.pkt_len = 0;
+
+	cont->eth.phys_addr = cpu_to_npe32(dma_map_single(
+		sa_ctx->master->npe_dev, pad, PAD_BLOCKLEN, DMA_TO_DEVICE));
+
+	cr_cont->ctl.crypt.src_buf = cpu_to_npe32(cont->phys);
+	cr_cont->ctl.crypt.oper_type = oper;
+
+	cr_cont->ctl.crypt.addr.icv = cpu_to_npe32(target);
+	cr_cont->ctl.crypt.mode = NPE_OP_HASH_GEN_ICV;
+	cr_cont->ctl.crypt.init_len = init_len;
+
+	atomic_inc(&sa_ctx->use_cnt);
+	queue_put_entry(sa_ctx->master->sendq, cr_cont->phys);
+	if (queue_stat(sa_ctx->master->sendq) == 2) { /* overflow */
+		atomic_dec(&sa_ctx->use_cnt);
+		qmgr_return_cont(dev_get_drvdata(sa_ctx->master->sendq->dev),
+				cont);
+		ix_sa_return_cont(sa_ctx->master, cr_cont);
+		return -ENOMEM;
+	}
+	return 0;
+}
+
+/* Return value
+ * 0 if nothing registered,
+ * 1 if something registered and
+ * < 0 on error
+ */
+static int ix_sa_ctx_setup_auth(struct ix_sa_ctx *sa_ctx,
+		const struct ix_hash_algo *algo, int len, int oper, int encrypt)
+{
+	unsigned char *ipad, *opad;
+	u32 itarget, otarget, ctx_addr;
+	unsigned char *cinfo;
+	int init_len, i, ret = 0;
+	struct qm_qmgr *qmgr;
+	struct ix_sa_dir *dir;
+	u32 cfgword;
+
+	dir = encrypt ? &sa_ctx->encrypt : &sa_ctx->decrypt;
+	cinfo = dir->npe_ctx + dir->npe_ctx_idx;
+
+	qmgr = dev_get_drvdata(sa_ctx->master->sendq->dev);
+
+	cinfo = dir->npe_ctx + dir->npe_ctx_idx;
+	sa_ctx->h_algo = algo;
+
+	if (!algo) {
+		dir->npe_mode |= NPE_OP_HMAC_DISABLE;
+		return 0;
+	}
+	if (algo->type == HASH_TYPE_CBCMAC) {
+		dir->npe_mode |= NPE_OP_CCM_ENABLE | NPE_OP_HMAC_DISABLE;
+		return 0;
+	}
+	if (sa_ctx->h_key.len > 64 || sa_ctx->h_key.len < algo->digest_len)
+		return -EINVAL;
+	if (len > algo->digest_len || (len % 4))
+		return -EINVAL;
+	if (!len)
+		len = algo->digest_len;
+
+	sa_ctx->digest_len = len;
+
+	/* write cfg word to cryptinfo */
+	cfgword = algo->cfgword | ((len/4) << 8);
+	*(u32*)cinfo = cpu_to_be32(cfgword);
+	cinfo += sizeof(cfgword);
+
+	/* write ICV to cryptinfo */
+	memcpy(cinfo, algo->icv, algo->digest_len);
+	cinfo += algo->digest_len;
+
+	itarget = dir->npe_ctx_phys + dir->npe_ctx_idx
+				+ sizeof(algo->cfgword);
+	otarget = itarget + algo->digest_len;
+
+	opad = kzalloc(PAD_BLOCKLEN, sa_ctx->gfp_flags | GFP_DMA);
+	if (!opad) {
+		return -ENOMEM;
+	}
+	ipad = kzalloc(PAD_BLOCKLEN, sa_ctx->gfp_flags | GFP_DMA);
+	if (!ipad) {
+		kfree(opad);
+		return -ENOMEM;
+	}
+	memcpy(ipad, sa_ctx->h_key.key, sa_ctx->h_key.len);
+	memcpy(opad, sa_ctx->h_key.key, sa_ctx->h_key.len);
+	for (i = 0; i < PAD_BLOCKLEN; i++) {
+		ipad[i] ^= HMAC_IPAD_VALUE;
+		opad[i] ^= HMAC_OPAD_VALUE;
+	}
+	init_len = cinfo - (dir->npe_ctx + dir->npe_ctx_idx);
+	ctx_addr = dir->npe_ctx_phys + dir->npe_ctx_idx;
+
+	dir->npe_ctx_idx += init_len;
+	dir->npe_mode |= NPE_OP_HASH_ENABLE;
+
+	if (!encrypt)
+		dir->npe_mode |= NPE_OP_HASH_VERIFY;
+
+	/* register first chainvar */
+	ret = register_chain_var(sa_ctx, opad, otarget,
+			init_len, ctx_addr, OP_REGISTER);
+	if (ret) {
+		kfree(ipad);
+		kfree(opad);
+		return ret;
+	}
+
+	/* register second chainvar */
+	ret = register_chain_var(sa_ctx, ipad, itarget,
+			init_len, ctx_addr, oper);
+	if (ret) {
+		kfree(ipad);
+		return ret;
+	}
+
+	return 1;
+}
+
+static int gen_rev_aes_key(struct ix_sa_ctx *sa_ctx,
+		u32 keylen_cfg, int cipher_op)
+{
+	unsigned char *cinfo;
+	struct npe_crypt_cont *cr_cont;
+
+	keylen_cfg |= CIPH_ENCR | ALGO_AES | MOD_ECB;
+	sa_ctx->rev_aes = ix_sa_get_cont(sa_ctx->master);
+	if (!sa_ctx->rev_aes)
+		return -ENOMEM;
+
+	cinfo = sa_ctx->rev_aes->ctl.rev_aes_key;
+	*(u32*)cinfo = cpu_to_be32(keylen_cfg);
+	cinfo += sizeof(keylen_cfg);
+
+	memcpy(cinfo, sa_ctx->c_key.key, sa_ctx->c_key.len);
+
+	cr_cont = ix_sa_get_cont(sa_ctx->master);
+	if (!cr_cont) {
+		ix_sa_return_cont(sa_ctx->master, sa_ctx->rev_aes);
+		sa_ctx->rev_aes = NULL;
+		return -ENOMEM;
+	}
+	cr_cont->ctl.crypt.sa_ctx = sa_ctx;
+	cr_cont->ctl.crypt.oper_type = cipher_op;
+
+	cr_cont->ctl.crypt.crypt_offs = 0;
+	cr_cont->ctl.crypt.crypt_len = cpu_to_npe16(AES_BLOCK128);
+	cr_cont->ctl.crypt.addr.rev_aes = cpu_to_npe32(
+			sa_ctx->rev_aes->phys + sizeof(keylen_cfg));
+
+	cr_cont->ctl.crypt.src_buf = 0;
+	cr_cont->ctl.crypt.crypto_ctx = cpu_to_npe32(sa_ctx->rev_aes->phys);
+	cr_cont->ctl.crypt.mode = NPE_OP_ENC_GEN_KEY;
+	cr_cont->ctl.crypt.init_len = sa_ctx->decrypt.npe_ctx_idx;
+
+	atomic_inc(&sa_ctx->use_cnt);
+	queue_put_entry(sa_ctx->master->sendq, cr_cont->phys);
+	if (queue_stat(sa_ctx->master->sendq) == 2) { /* overflow */
+		atomic_dec(&sa_ctx->use_cnt);
+		ix_sa_return_cont(sa_ctx->master, cr_cont);
+		ix_sa_return_cont(sa_ctx->master, sa_ctx->rev_aes);
+		sa_ctx->rev_aes = NULL;
+		return -ENOMEM;
+	}
+
+	return 1;
+}
+
+/* Return value
+ * 0 if nothing registered,
+ * 1 if something registered and
+ * < 0 on error
+ */
+static int ix_sa_ctx_setup_cipher(struct ix_sa_ctx *sa_ctx,
+		const struct ix_cipher_algo *algo, int cipher_op, int encrypt)
+{
+	unsigned char *cinfo;
+	int keylen, init_len;
+	u32 cipher_cfg;
+	u32 keylen_cfg = 0;
+	struct ix_sa_dir *dir;
+
+	dir = encrypt ? &sa_ctx->encrypt : &sa_ctx->decrypt;
+	cinfo = dir->npe_ctx + dir->npe_ctx_idx;
+
+	sa_ctx->c_algo = algo;
+
+	if (!algo)
+		return 0;
+
+	if (algo->type == CIPHER_TYPE_DES && sa_ctx->c_key.len != 8)
+		return -EINVAL;
+
+	if (algo->type == CIPHER_TYPE_3DES && sa_ctx->c_key.len != 24)
+		return -EINVAL;
+
+	keylen = 24;
+
+	if (encrypt) {
+		cipher_cfg = algo->cfgword_enc;
+		dir->npe_mode |= NPE_OP_CRYPT_ENCRYPT;
+	} else {
+		cipher_cfg = algo->cfgword_dec;
+	}
+	if (algo->type == CIPHER_TYPE_AES) {
+		switch (sa_ctx->c_key.len) {
+			case 16: keylen_cfg = MOD_AES128 | KEYLEN_128; break;
+			case 24: keylen_cfg = MOD_AES192 | KEYLEN_192; break;
+			case 32: keylen_cfg = MOD_AES256 | KEYLEN_256; break;
+			default: return -EINVAL;
+		}
+		keylen = sa_ctx->c_key.len;
+		cipher_cfg |= keylen_cfg;
+	}
+
+	/* write cfg word to cryptinfo */
+	*(u32*)cinfo = cpu_to_be32(cipher_cfg);
+	cinfo += sizeof(cipher_cfg);
+
+	/* write cipher key to cryptinfo */
+	memcpy(cinfo, sa_ctx->c_key.key, sa_ctx->c_key.len);
+	cinfo += keylen;
+
+	init_len = cinfo - (dir->npe_ctx + dir->npe_ctx_idx);
+	dir->npe_ctx_idx += init_len;
+
+	dir->npe_mode |= NPE_OP_CRYPT_ENABLE;
+
+	if (algo->type == CIPHER_TYPE_AES && !encrypt) {
+		return gen_rev_aes_key(sa_ctx, keylen_cfg, cipher_op);
+	}
+
+	return 0;
+}
+
+/* returns 0 on OK, <0 on error and 1 on overflow */
+int ix_sa_crypto_perform(struct ix_sa_ctx *sa_ctx, u8 *data, void *ptr,
+	int datalen, int c_offs, int c_len, int a_offs, int a_len,
+	int hmac, char *iv, int encrypt)
+{
+	struct npe_crypt_cont *cr_cont;
+	struct npe_cont *cont;
+	u32 data_phys;
+	int ret = -ENOMEM;
+	struct ix_sa_dir *dir;
+
+	dir = encrypt ? &sa_ctx->encrypt : &sa_ctx->decrypt;
+
+	if (sa_ctx->state != STATE_REGISTERED)
+		return -ENOENT;
+
+	cr_cont = ix_sa_get_cont(sa_ctx->master);
+	if (!cr_cont)
+		return ret;
+
+	cr_cont->ctl.crypt.sa_ctx = sa_ctx;
+	cr_cont->ctl.crypt.crypto_ctx = cpu_to_npe32(dir->npe_ctx_phys);
+	cr_cont->ctl.crypt.oper_type = OP_PERFORM;
+	cr_cont->ctl.crypt.mode = dir->npe_mode;
+	cr_cont->ctl.crypt.init_len = dir->npe_ctx_idx;
+
+	if (sa_ctx->c_algo) {
+		cr_cont->ctl.crypt.crypt_offs = cpu_to_npe16(c_offs);
+		cr_cont->ctl.crypt.crypt_len = cpu_to_npe16(c_len);
+		if (sa_ctx->c_algo->iv_len) {
+			if (!iv) {
+				ret = -EINVAL;
+				goto err_cr;
+			}
+			memcpy(cr_cont->ctl.crypt.iv, iv,
+					sa_ctx->c_algo->iv_len);
+		}
+	}
+
+	if (sa_ctx->h_algo) {
+		/* prepare hashing */
+		cr_cont->ctl.crypt.auth_offs = cpu_to_npe16(a_offs);
+		cr_cont->ctl.crypt.auth_len = cpu_to_npe16(a_len);
+	}
+
+	data_phys = dma_map_single(sa_ctx->master->npe_dev,
+			data, datalen, DMA_BIDIRECTIONAL);
+	if (hmac)
+		cr_cont->ctl.crypt.addr.icv = cpu_to_npe32(data_phys + hmac);
+
+	/* Prepare the data ptr */
+	cont = qmgr_get_cont(dev_get_drvdata(sa_ctx->master->sendq->dev));
+	if (!cont) {
+		goto err_unmap;
+	}
+
+	cont->data = ptr;
+	cont->eth.next = 0;
+	cont->eth.buf_len = cpu_to_npe16(datalen);
+	cont->eth.pkt_len = 0;
+
+	cont->eth.phys_addr = cpu_to_npe32(data_phys);
+	cr_cont->ctl.crypt.src_buf = cpu_to_npe32(cont->phys);
+
+	atomic_inc(&sa_ctx->use_cnt);
+	queue_put_entry(sa_ctx->master->sendq, cr_cont->phys);
+	if (queue_stat(sa_ctx->master->sendq) != 2) {
+		return 0;
+	}
+
+	/* overflow */
+	printk("%s: Overflow\n", __FUNCTION__);
+	ret = -EAGAIN;
+	atomic_dec(&sa_ctx->use_cnt);
+	qmgr_return_cont(dev_get_drvdata(sa_ctx->master->sendq->dev), cont);
+
+err_unmap:
+	dma_unmap_single(sa_ctx->master->npe_dev, data_phys, datalen,
+			DMA_BIDIRECTIONAL);
+err_cr:
+	ix_sa_return_cont(sa_ctx->master, cr_cont);
+
+	return ret;
+}
+
+int ix_sa_ctx_setup_cipher_auth(struct ix_sa_ctx *sa_ctx,
+		const struct ix_cipher_algo *cipher,
+		const struct ix_hash_algo *auth, int len)
+{
+	int ret = 0, sum = 0;
+	int cipher_op;
+
+	if (sa_ctx->state != STATE_UNREGISTERED)
+		return -ENOENT;
+
+	atomic_inc(&sa_ctx->use_cnt);
+
+	cipher_op = auth ? OP_REGISTER : OP_REG_DONE;
+	if ((ret = ix_sa_ctx_setup_cipher(sa_ctx, cipher, OP_REGISTER, 1)) < 0)
+		goto out;
+	sum += ret;
+	if ((ret = ix_sa_ctx_setup_cipher(sa_ctx, cipher, cipher_op, 0)) < 0)
+		goto out;
+	sum += ret;
+	if ((ret = ix_sa_ctx_setup_auth(sa_ctx, auth, len, OP_REGISTER, 1)) < 0)
+		goto out;
+	sum += ret;
+	if ((ret = ix_sa_ctx_setup_auth(sa_ctx, auth, len, OP_REG_DONE, 0)) < 0)
+		goto out;
+	sum += ret;
+
+	/* Nothing registered ?
+	 * Ok, then we are done and call the callback here.
+	 */
+	if (!sum) {
+		if (sa_ctx->state == STATE_UNREGISTERED)
+			sa_ctx->state = STATE_REGISTERED;
+		if (sa_ctx->reg_cb)
+			sa_ctx->reg_cb(sa_ctx, 0);
+	}
+out:
+	atomic_dec(&sa_ctx->use_cnt);
+	return ret;
+}
+
+static int __init init_crypto(void)
+{
+	return init_sa_master(&sa_master);
+}
+
+static void __exit finish_crypto(void)
+{
+	release_sa_master(&sa_master);
+}
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Christian Hohnstaedt <chohnstaedt@innominate.com>");
+
+EXPORT_SYMBOL(ix_hash_by_id);
+EXPORT_SYMBOL(ix_cipher_by_id);
+
+EXPORT_SYMBOL(ix_sa_ctx_new);
+EXPORT_SYMBOL(ix_sa_ctx_free);
+EXPORT_SYMBOL(ix_sa_ctx_setup_cipher_auth);
+EXPORT_SYMBOL(ix_sa_crypto_perform);
+
+module_init(init_crypto);
+module_exit(finish_crypto);
+
Index: linux-2.6.21-rc1-arm/drivers/net/ixp4xx/ixp4xx_qmgr.c
===================================================================
--- /dev/null	1970-01-01 00:00:00.000000000 +0000
+++ linux-2.6.21-rc1-arm/drivers/net/ixp4xx/ixp4xx_qmgr.c	2007-02-21 02:24:35.000000000 -0800
@@ -0,0 +1,474 @@
+/*
+ * qmgr.c - reimplementation of the queue configuration interface.
+ *
+ * Copyright (C) 2006 Christian Hohnstaedt <chohnstaedt@innominate.com>
+ *
+ * This file is released under the GPLv2
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/fs.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/dmapool.h>
+#include <linux/interrupt.h>
+#include <linux/err.h>
+#include <linux/delay.h>
+#include <asm/uaccess.h>
+#include <asm/io.h>
+
+#include <linux/ixp_qmgr.h>
+#include <linux/ixp_npe.h>
+
+#define IXQMGR_VERSION "IXP4XX Q Manager 0.2.1"
+
+static struct device *qmgr_dev = NULL;
+
+static int poll_freq = 4000;
+static int poll_enable = 0;
+static u32 timer_countup_ticks;
+
+module_param(poll_freq, int, 0644);
+module_param(poll_enable, int, 0644);
+
+int queue_len(struct qm_queue *queue)
+{
+	struct qm_qmgr *qmgr = dev_get_drvdata(queue->dev);
+	int diff, offs;
+	u32 val;
+
+	offs = queue->id/8 + QUE_LOW_STAT0;
+	val = *(qmgr->addr + IX_QMGR_QCFG_BASE + queue->id);
+
+	diff = (val - (val >> 7)) & 0x7f;
+	if (!diff) {
+		/* diff == 0 means either empty or full, must look at STAT0 */
+		if ((*(qmgr->addr + offs) >>  ((queue->id % 8)*4)) & 0x04)
+			diff = queue->len;
+	}
+	return diff;
+}
+
+static int request_pool(struct device *dev, int count)
+{
+	int i;
+	struct npe_cont *cont;
+	struct qm_qmgr *qmgr = dev_get_drvdata(dev);
+	dma_addr_t handle;
+
+	for (i=0; i<count; i++) {
+		cont = dma_pool_alloc(qmgr->dmapool, GFP_KERNEL, &handle);
+		if (!cont) {
+			return -ENOMEM;
+		}
+		cont->phys = handle;
+		cont->virt = cont;
+		write_lock(&qmgr->lock);
+		cont->next = qmgr->pool;
+		qmgr->pool = cont;
+		write_unlock(&qmgr->lock);
+	}
+	return 0;
+}
+
+static int free_pool(struct device *dev, int count)
+{
+	int i;
+	struct npe_cont *cont;
+	struct qm_qmgr *qmgr = dev_get_drvdata(dev);
+
+	for (i=0; i<count; i++) {
+		write_lock(&qmgr->lock);
+		cont = qmgr->pool;
+		if (!cont) {
+			write_unlock(&qmgr->lock);
+			return -1;
+		}
+		qmgr->pool = cont->next;
+		write_unlock(&qmgr->lock);
+		dma_pool_free(qmgr->dmapool, cont, cont->phys);
+	}
+	return 0;
+}
+
+static int get_free_qspace(struct qm_qmgr *qmgr, int len)
+{
+	int words = (qmgr->res->end - qmgr->res->start + 1) / 4 -
+			IX_QMGR_SRAM_SPACE;
+	int i,q;
+
+	for (i=0; i<words; i+=len) {
+		for (q=0; q<MAX_QUEUES; q++) {
+			struct qm_queue *qu = qmgr->queues[q];
+			if (!qu)
+				continue;
+			if ((qu->addr + qu->len > i) && (qu->addr < i + len))
+				break;
+		}
+		if (q == MAX_QUEUES) {
+			/* we have a free address */
+			return i;
+		}
+	}
+	return -1;
+}
+
+static inline int _log2(int x)
+{
+	int r=0;
+	while(x>>=1)
+		r++;
+	return r;
+}
+
+/*
+ * 32bit Config registers at IX_QMGR_QUECONFIG_BASE_OFFSET[Qid]
+ *    0 - 6 WRPTR Word offset to baseaddr (index 0 .. BSIZE-1)
+ *    7 -13 RDPTR        ''
+ *   14 -21 BADDR baseaddr = (offset to IX_QMGR_QUEBUFFER_SPACE_OFFSET) >> 6
+ *   22 -23 ESIZE entrySizeInWords (always 00 because entrySizeInWords==1)
+ *   24 -25 BSIZE qSizeInWords 00=16,01=32,10=64,11=128
+ *   26 -28 NE nearly empty
+ *   29 -31 NF nearly full
+ */
+static int conf_q_regs(struct qm_queue *queue)
+{
+	int bsize = _log2(queue->len/16);
+	int baddr = queue->addr + IX_QMGR_QCFG_SIZE;
+
+	/* +2, because baddr is in words and not in bytes */
+	queue_write_cfg_reg(queue,  (bsize << 24) | (baddr<<(14-6+2)) );
+
+	return 0;
+}
+
+static void pmu_timer_restart(void)
+{
+    unsigned long flags;
+
+    local_irq_save(flags);
+
+     __asm__(" mcr p14,0,%0,c1,c1,0\n"  /* write current counter */
+            : : "r" (timer_countup_ticks));
+
+    __asm__(" mrc p14,0,r1,c4,c1,0; "  /* get int enable register */
+            " orr r1,r1,#1; "
+            " mcr p14,0,r1,c5,c1,0; "  /* clear overflow */
+            " mcr p14,0,r1,c4,c1,0\n"  /* enable interrupts */
+            : : : "r1");
+
+    local_irq_restore(flags);
+}
+
+static void pmu_timer_init(void)
+{
+	u32 controlRegisterMask =
+		BIT(0) | /* enable counters */
+		BIT(2);  /* reset clock counter; */
+
+	/*
+	 *   Compute the number of xscale cycles needed between each
+	 *   PMU IRQ. This is done from the result of an OS calibration loop.
+	 *
+	 *   For 533MHz CPU, 533000000 tick/s / 4000 times/sec = 138250
+	 *   4000 times/sec = 37 mbufs/interrupt at line rate
+	 *   The pmu timer is reset to -138250 = 0xfffde3f6, to trigger an IRQ
+	 *   when this up counter overflows.
+	 *
+	 *   The multiplication gives a number of instructions per second.
+	 *   which is close to the processor frequency, and then close to the
+	 *   PMU clock rate.
+	 *
+	 *   2 is the number of instructions per loop
+	 *
+	 */
+
+	timer_countup_ticks = - ((loops_per_jiffy * HZ * 2) / poll_freq);
+
+	/* enable the CCNT (clock count) timer from the PMU */
+	__asm__(" mcr p14,0,%0,c0,c1,0\n"
+	        : : "r" (controlRegisterMask));
+}
+
+static void pmu_timer_disable(void)
+{
+	unsigned long flags;
+
+	local_irq_save(flags);
+
+	__asm__(" mrc p14,0,r1,c4,c1,0; "  /* get int enable register */
+	        " and r1,r1,#0x1e; "
+	        " mcr p14,0,r1,c4,c1,0\n"  /* disable interrupts */
+	        : : : "r1");
+	local_irq_restore(flags);
+}
+
+void queue_set_watermarks(struct qm_queue *queue, unsigned ne, unsigned nf)
+{
+	u32 val;
+	/* calculate the register values
+	 * 0->0, 1->1, 2->2, 4->3, 8->4 16->5...*/
+	ne = _log2(ne<<1) & 0x7;
+	nf = _log2(nf<<1) & 0x7;
+
+	/* Mask out old watermarks */
+	val = queue_read_cfg_reg(queue) & ~0xfc000000;
+	queue_write_cfg_reg(queue, val | (ne << 26) | (nf << 29));
+}
+
+int queue_set_irq_src(struct qm_queue *queue, int flag)
+{
+	struct qm_qmgr *qmgr = dev_get_drvdata(queue->dev);
+	u32 reg;
+	int offs, bitoffs;
+
+	/* Q 0-7 are in REG0, 8-15 are in REG1, etc. They occupy 4 bits/Q */
+	offs = queue->id/8 + INT0_SRC_SELREG0;
+	bitoffs = (queue->id % 8)*4;
+
+	reg = *(qmgr->addr + offs) & ~(0xf << bitoffs);
+	*(qmgr->addr + offs) = reg | (flag << bitoffs);
+
+	return 0;
+}
+
+static irqreturn_t irq_qm1(int irq, void *dev_id)
+{
+	struct qm_qmgr *qmgr = dev_id;
+	int offs, reg;
+	struct qm_queue *queue;
+
+	if (poll_enable)
+		pmu_timer_restart();
+
+	reg = *(qmgr->addr + QUE_INT_REG0);
+	while(reg) {
+		/*
+		 * count leading zeros. "offs" gets
+		 * the amount of leading 0 in "reg"
+		 */
+		asm ("clz %0, %1;" : "=r"(offs) : "r"(reg));
+		offs = 31 - offs;
+		reg &= ~(1 << offs);
+		queue = qmgr->queues[offs];
+		if (likely(queue)) {
+			if (likely(queue->irq_cb)) {
+				queue->irq_cb(queue);
+			} else {
+				printk(KERN_ERR "Missing callback for Q %d\n",
+						offs);
+			}
+		} else {
+			printk(KERN_ERR "IRQ for unregistered Q %d\n", offs);
+		}
+	}
+	return IRQ_HANDLED;
+}
+
+struct qm_queue *request_queue(int qid, int len)
+{
+	int ram;
+	struct qm_qmgr *qmgr;
+	struct qm_queue *queue;
+
+	if (!qmgr_dev)
+		return ERR_PTR(-ENODEV);
+
+	if ((qid < 0) || (qid > MAX_QUEUES))
+		return ERR_PTR(-ERANGE);
+
+	switch (len) {
+		case 16:
+		case 32:
+		case 64:
+		case 128: break;
+		default : return ERR_PTR(-EINVAL);
+	}
+
+	qmgr = dev_get_drvdata(qmgr_dev);
+
+	if (qmgr->queues[qid]) {
+		/* not an error, just in use already */
+		return NULL;
+	}
+	if ((ram = get_free_qspace(qmgr, len)) < 0) {
+		printk(KERN_ERR "No free SRAM space for this queue\n");
+		return ERR_PTR(-ENOMEM);
+	}
+	if (!(queue = kzalloc(sizeof(struct qm_queue), GFP_KERNEL)))
+		return ERR_PTR(-ENOMEM);
+
+	if (!try_module_get(THIS_MODULE)) {
+		kfree(queue);
+		return ERR_PTR(-ENODEV);
+	}
+
+	queue->addr = ram;
+	queue->len = len;
+	queue->id = qid;
+	queue->dev = get_device(qmgr_dev);
+	queue->acc_reg = qmgr->addr + (4 * qid);
+	qmgr->queues[qid] = queue;
+	if (request_pool(qmgr_dev, len)) {
+		printk(KERN_ERR "Failed to request DMA pool of Q %d\n", qid);
+	}
+
+	conf_q_regs(queue);
+	return queue;
+}
+
+void release_queue(struct qm_queue *queue)
+{
+	struct qm_qmgr *qmgr = dev_get_drvdata(queue->dev);
+
+	BUG_ON(qmgr->queues[queue->id] != queue);
+	qmgr->queues[queue->id] = NULL;
+
+	if (free_pool(queue->dev, queue->len)) {
+		printk(KERN_ERR "Failed to release DMA pool of Q %d\n",
+				queue->id);
+	}
+	queue_disable_irq(queue);
+	queue_write_cfg_reg(queue, 0);
+
+	module_put(THIS_MODULE);
+	put_device(queue->dev);
+	kfree(queue);
+}
+
+
+
+
+static int qmgr_probe(struct platform_device *pdev)
+{
+	struct resource *res;
+	struct qm_qmgr *qmgr;
+	int size, ret=0, i;
+
+	if (!(res = platform_get_resource(pdev, IORESOURCE_MEM, 0)))
+		return -EIO;
+
+	if ((i = platform_get_irq(pdev, 0)) < 0)
+		return -EIO;
+
+	if (!(qmgr = kzalloc(sizeof(struct qm_qmgr), GFP_KERNEL)))
+		return -ENOMEM;
+
+	qmgr->irq = i;
+	size = res->end - res->start +1;
+	qmgr->res = request_mem_region(res->start, size, "ixp_qmgr");
+	if (!qmgr->res) {
+		ret = -EBUSY;
+		goto out_free;
+	}
+
+	qmgr->addr = ioremap(res->start, size);
+	if (!qmgr->addr) {
+		ret = -ENOMEM;
+		goto out_rel;
+	}
+
+	/* Reset Q registers */
+	for (i=0; i<4; i++)
+		*(qmgr->addr + QUE_LOW_STAT0 +i) = 0x33333333;
+	for (i=0; i<10; i++)
+		*(qmgr->addr + QUE_UO_STAT0 +i) = 0x0;
+	for (i=0; i<4; i++)
+		*(qmgr->addr + INT0_SRC_SELREG0 +i) = 0x0;
+	for (i=0; i<2; i++) {
+		*(qmgr->addr + QUE_IE_REG0 +i) = 0x00;
+		*(qmgr->addr + QUE_INT_REG0 +i) = 0xffffffff;
+	}
+	for (i=0; i<64; i++) {
+		*(qmgr->addr + IX_QMGR_QCFG_BASE + i) = 0x0;
+	}
+
+	if (poll_enable) {
+		pmu_timer_init();
+		qmgr->irq = IRQ_IXP4XX_XSCALE_PMU;
+	}
+	ret = request_irq(qmgr->irq, irq_qm1, SA_SHIRQ | SA_INTERRUPT,
+			"qmgr", qmgr);
+	if (ret) {
+		printk(KERN_ERR "Failed to request IRQ(%d)\n", qmgr->irq);
+		ret = -EIO;
+		goto out_rel;
+	}
+	if (poll_enable)
+		pmu_timer_restart();
+
+	rwlock_init(&qmgr->lock);
+	qmgr->dmapool = dma_pool_create("qmgr", &pdev->dev,
+			sizeof(struct npe_cont), 32, 0);
+	platform_set_drvdata(pdev, qmgr);
+
+	qmgr_dev = &pdev->dev;
+
+	printk(KERN_INFO IXQMGR_VERSION " initialized.\n");
+
+	return 0;
+
+out_rel:
+	release_resource(qmgr->res);
+out_free:
+	kfree(qmgr);
+	return ret;
+}
+
+static int qmgr_remove(struct platform_device *pdev)
+{
+	struct qm_qmgr *qmgr = platform_get_drvdata(pdev);
+	int i;
+
+	for (i=0; i<MAX_QUEUES; i++) {
+		if (qmgr->queues[i]) {
+			printk(KERN_ERR "WARNING Unreleased Q: %d\n", i);
+			release_queue(qmgr->queues[i]);
+		}
+	}
+
+	if (poll_enable)
+		pmu_timer_disable();
+
+	synchronize_irq (qmgr->irq);
+	free_irq(qmgr->irq, qmgr);
+
+	dma_pool_destroy(qmgr->dmapool);
+	iounmap(qmgr->addr);
+	release_resource(qmgr->res);
+	platform_set_drvdata(pdev, NULL);
+	qmgr_dev = NULL;
+	kfree(qmgr);
+	return 0;
+}
+
+static struct platform_driver ixp4xx_qmgr = {
+	.driver.name    = "ixp4xx_qmgr",
+	.probe          = qmgr_probe,
+	.remove         = qmgr_remove,
+};
+
+
+static int __init init_qmgr(void)
+{
+	return platform_driver_register(&ixp4xx_qmgr);
+}
+
+static void __exit finish_qmgr(void)
+{
+	platform_driver_unregister(&ixp4xx_qmgr);
+}
+
+module_init(init_qmgr);
+module_exit(finish_qmgr);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Christian Hohnstaedt <chohnstaedt@innominate.com>");
+
+EXPORT_SYMBOL(request_queue);
+EXPORT_SYMBOL(release_queue);
+EXPORT_SYMBOL(queue_set_irq_src);
+EXPORT_SYMBOL(queue_set_watermarks);
+EXPORT_SYMBOL(queue_len);
Index: linux-2.6.21-rc1-arm/drivers/net/ixp4xx/mac.h
===================================================================
--- /dev/null	1970-01-01 00:00:00.000000000 +0000
+++ linux-2.6.21-rc1-arm/drivers/net/ixp4xx/mac.h	2007-02-21 02:24:35.000000000 -0800
@@ -0,0 +1,275 @@
+/*
+ * Copyright (C) 2002-2006 Christian Hohnstaedt <chohnstaedt@innominate.com>
+ *
+ * This file is released under the GPLv2
+ */
+
+#include <linux/resource.h>
+#include <linux/netdevice.h>
+#include <linux/io.h>
+#include <linux/mii.h>
+#include <linux/workqueue.h>
+#include <asm/hardware.h>
+#include <linux/ixp_qmgr.h>
+
+/* 32 bit offsets to be added to u32 *pointers */
+#define MAC_TX_CNTRL1       0x00  // 0x000
+#define MAC_TX_CNTRL2       0x01  // 0x004
+#define MAC_RX_CNTRL1       0x04  // 0x010
+#define MAC_RX_CNTRL2       0x05  // 0x014
+#define MAC_RANDOM_SEED     0x08  // 0x020
+#define MAC_THRESH_P_EMPTY  0x0c  // 0x030
+#define MAC_THRESH_P_FULL   0x0e  // 0x038
+#define MAC_BUF_SIZE_TX     0x10  // 0x040
+#define MAC_TX_DEFER        0x14  // 0x050
+#define MAC_RX_DEFER        0x15  // 0x054
+#define MAC_TX_TWO_DEFER_1  0x18  // 0x060
+#define MAC_TX_TWO_DEFER_2  0x19  // 0x064
+#define MAC_SLOT_TIME       0x1c  // 0x070
+#define MAC_MDIO_CMD        0x20  // 0x080 4 registers 0x20 - 0x23
+#define MAC_MDIO_STS        0x24  // 0x090 4 registers 0x24 - 0x27
+#define MAC_ADDR_MASK       0x28  // 0x0A0 6 registers 0x28 - 0x2d
+#define MAC_ADDR            0x30  // 0x0C0 6 registers 0x30 - 0x35
+#define MAC_INT_CLK_THRESH  0x38  // 0x0E0 1 register
+#define MAC_UNI_ADDR        0x3c  // 0x0F0 6 registers 0x3c - 0x41
+#define MAC_CORE_CNTRL      0x7f  // 0x1fC
+
+/* TX Control Register 1*/
+
+#define TX_CNTRL1_TX_EN         BIT(0)
+#define TX_CNTRL1_DUPLEX        BIT(1)
+#define TX_CNTRL1_RETRY         BIT(2)
+#define TX_CNTRL1_PAD_EN        BIT(3)
+#define TX_CNTRL1_FCS_EN        BIT(4)
+#define TX_CNTRL1_2DEFER        BIT(5)
+#define TX_CNTRL1_RMII          BIT(6)
+
+/* TX Control Register 2 */
+#define TX_CNTRL2_RETRIES_MASK  0xf
+
+/* RX Control Register 1 */
+#define RX_CNTRL1_RX_EN         BIT(0)
+#define RX_CNTRL1_PADSTRIP_EN   BIT(1)
+#define RX_CNTRL1_CRC_EN        BIT(2)
+#define RX_CNTRL1_PAUSE_EN      BIT(3)
+#define RX_CNTRL1_LOOP_EN       BIT(4)
+#define RX_CNTRL1_ADDR_FLTR_EN  BIT(5)
+#define RX_CNTRL1_RX_RUNT_EN    BIT(6)
+#define RX_CNTRL1_BCAST_DIS     BIT(7)
+
+/* RX Control Register 2 */
+#define RX_CNTRL2_DEFER_EN      BIT(0)
+
+/* Core Control Register */
+#define CORE_RESET              BIT(0)
+#define CORE_RX_FIFO_FLUSH      BIT(1)
+#define CORE_TX_FIFO_FLUSH      BIT(2)
+#define CORE_SEND_JAM           BIT(3)
+#define CORE_MDC_EN             BIT(4)
+
+/* Definitions for MII access routines*/
+
+#define MII_REG_SHL    16
+#define MII_ADDR_SHL   21
+
+#define MII_GO                  BIT(31)
+#define MII_WRITE               BIT(26)
+#define MII_READ_FAIL           BIT(31)
+
+#define MII_TIMEOUT_10TH_SECS        5
+#define MII_10TH_SEC_IN_MILLIS     100
+
+/*
+ *
+ * Default values
+ *
+ */
+
+#define MAC_DEF_MSG_ENABLE (NETIF_MSG_DRV | NETIF_MSG_PROBE | NETIF_MSG_LINK)
+
+#define MAC_TX_CNTRL1_DEFAULT  (\
+		TX_CNTRL1_TX_EN | \
+		TX_CNTRL1_RETRY  | \
+		TX_CNTRL1_FCS_EN | \
+		TX_CNTRL1_2DEFER | \
+		TX_CNTRL1_PAD_EN )
+
+#define MAC_TX_MAX_RETRIES_DEFAULT 0x0f
+
+#define MAC_RX_CNTRL1_DEFAULT ( \
+		RX_CNTRL1_PADSTRIP_EN | \
+		RX_CNTRL1_CRC_EN | \
+		RX_CNTRL1_RX_EN )
+
+#define MAC_RX_CNTRL2_DEFAULT       0x0
+#define MAC_TX_CNTRL2_DEFAULT       TX_CNTRL2_RETRIES_MASK
+
+/* Thresholds determined by NPE firmware FS */
+#define MAC_THRESH_P_EMPTY_DEFAULT  0x12
+#define MAC_THRESH_P_FULL_DEFAULT   0x30
+
+/* Number of bytes that must be in the tx fifo before
+ * transmission commences */
+#define MAC_BUF_SIZE_TX_DEFAULT     0x8
+
+/* One-part deferral values */
+#define MAC_TX_DEFER_DEFAULT        0x15
+#define MAC_RX_DEFER_DEFAULT        0x16
+
+/* Two-part deferral values... */
+#define MAC_TX_TWO_DEFER_1_DEFAULT  0x08
+#define MAC_TX_TWO_DEFER_2_DEFAULT  0x07
+
+/* This value applies to MII */
+#define MAC_SLOT_TIME_DEFAULT       0x80
+
+/* This value applies to RMII */
+#define MAC_SLOT_TIME_RMII_DEFAULT  0xFF
+
+#define MAC_ADDR_MASK_DEFAULT       0xFF
+
+#define MAC_INT_CLK_THRESH_DEFAULT  0x1
+/* The following is a value chosen at random */
+#define MAC_RANDOM_SEED_DEFAULT     0x8
+
+/* By default we must configure the MAC to generate the MDC clock*/
+#define CORE_DEFAULT                (CORE_MDC_EN)
+
+/* End of Intel provided register information */
+
+extern int
+mdio_read_register(struct net_device *dev, int phy_addr, int phy_reg);
+extern void
+mdio_write_register(struct net_device *dev, int phy_addr, int phy_reg, int val);
+extern void init_mdio(struct net_device *dev, int phy_id);
+
+struct mac_info {
+	u32 __iomem *addr;
+	struct resource *res;
+	struct device *npe_dev;
+	struct net_device *netdev;
+	struct qm_qmgr *qmgr;
+	struct qm_queue *rxq;
+	struct qm_queue *txq;
+	struct qm_queue *rxdoneq;
+	u32 irqflags;
+	struct net_device_stats stat;
+	struct mii_if_info mii;
+	struct delayed_work mdio_thread;
+	int rxq_pkt;
+	int txq_pkt;
+	int unloading;
+	struct mac_plat_info *plat;
+	int npe_stat_num;
+	spinlock_t rx_lock;
+	u32 msg_enable;
+};
+
+static inline void mac_write_reg(struct mac_info *mac, int offset, u32 val)
+{
+	*(mac->addr + offset) = val;
+}
+static inline u32 mac_read_reg(struct mac_info *mac, int offset)
+{
+	return *(mac->addr + offset);
+}
+static inline void mac_set_regbit(struct mac_info *mac, int offset, u32 bit)
+{
+	mac_write_reg(mac, offset, mac_read_reg(mac, offset) | bit);
+}
+static inline void mac_reset_regbit(struct mac_info *mac, int offset, u32 bit)
+{
+	mac_write_reg(mac, offset, mac_read_reg(mac, offset) & ~bit);
+}
+
+static inline void mac_mdio_cmd_write(struct mac_info *mac, u32 cmd)
+{
+	int i;
+	for(i=0; i<4; i++) {
+		mac_write_reg(mac, MAC_MDIO_CMD + i, cmd & 0xff);
+		cmd >>=8;
+	}
+}
+
+#define mac_mdio_cmd_read(mac) mac_mdio_read((mac), MAC_MDIO_CMD)
+#define mac_mdio_status_read(mac) mac_mdio_read((mac), MAC_MDIO_STS)
+static inline u32 mac_mdio_read(struct mac_info *mac, int offset)
+{
+	int i;
+	u32 data = 0;
+	for(i=0; i<4; i++) {
+		data |= (mac_read_reg(mac, offset + i) & 0xff) << (i*8);
+	}
+	return data;
+}
+
+static inline u32 mdio_cmd(int phy_addr, int phy_reg)
+{
+	return phy_addr << MII_ADDR_SHL |
+		phy_reg << MII_REG_SHL |
+	        MII_GO;
+}
+
+#define MAC_REG_LIST { \
+	MAC_TX_CNTRL1, MAC_TX_CNTRL2, \
+	MAC_RX_CNTRL1, MAC_RX_CNTRL2, \
+	MAC_RANDOM_SEED, MAC_THRESH_P_EMPTY, MAC_THRESH_P_FULL, \
+	MAC_BUF_SIZE_TX, MAC_TX_DEFER, MAC_RX_DEFER, \
+	MAC_TX_TWO_DEFER_1, MAC_TX_TWO_DEFER_2, MAC_SLOT_TIME, \
+	MAC_ADDR_MASK +0, MAC_ADDR_MASK +1, MAC_ADDR_MASK +2, \
+	MAC_ADDR_MASK +3, MAC_ADDR_MASK +4, MAC_ADDR_MASK +5, \
+	MAC_ADDR +0, MAC_ADDR +1, MAC_ADDR +2, \
+	MAC_ADDR +3, MAC_ADDR +4, MAC_ADDR +5, \
+	MAC_INT_CLK_THRESH, \
+	MAC_UNI_ADDR +0, MAC_UNI_ADDR +1, MAC_UNI_ADDR +2, \
+	MAC_UNI_ADDR +3, MAC_UNI_ADDR +4, MAC_UNI_ADDR +5, \
+	MAC_CORE_CNTRL \
+}
+
+#define NPE_STAT_NUM            34
+#define NPE_STAT_NUM_BASE       22
+#define NPE_Q_STAT_NUM           4
+
+#define NPE_Q_STAT_STRINGS \
+	{"RX ready to use queue len     "}, \
+	{"RX received queue len         "}, \
+	{"TX to be send queue len       "}, \
+	{"TX done queue len             "},
+
+#define NPE_STAT_STRINGS \
+	{"StatsAlignmentErrors          "}, \
+	{"StatsFCSErrors                "}, \
+	{"StatsInternalMacReceiveErrors "}, \
+	{"RxOverrunDiscards             "}, \
+	{"RxLearnedEntryDiscards        "}, \
+	{"RxLargeFramesDiscards         "}, \
+	{"RxSTPBlockedDiscards          "}, \
+	{"RxVLANTypeFilterDiscards      "}, \
+	{"RxVLANIdFilterDiscards        "}, \
+	{"RxInvalidSourceDiscards       "}, \
+	{"RxBlackListDiscards           "}, \
+	{"RxWhiteListDiscards           "}, \
+	{"RxUnderflowEntryDiscards      "}, \
+	{"StatsSingleCollisionFrames    "}, \
+	{"StatsMultipleCollisionFrames  "}, \
+	{"StatsDeferredTransmissions    "}, \
+	{"StatsLateCollisions           "}, \
+	{"StatsExcessiveCollsions       "}, \
+	{"StatsInternalMacTransmitErrors"}, \
+	{"StatsCarrierSenseErrors       "}, \
+	{"TxLargeFrameDiscards          "}, \
+	{"TxVLANIdFilterDiscards        "}, \
+\
+	{"RxValidFramesTotalOctets      "}, \
+	{"RxUcastPkts                   "}, \
+	{"RxBcastPkts                   "}, \
+	{"RxMcastPkts                   "}, \
+	{"RxPkts64Octets                "}, \
+	{"RxPkts65to127Octets           "}, \
+	{"RxPkts128to255Octets          "}, \
+	{"RxPkts256to511Octets          "}, \
+	{"RxPkts512to1023Octets         "}, \
+	{"RxPkts1024to1518Octets        "}, \
+	{"RxInternalNPEReceiveErrors    "}, \
+	{"TxInternalNPETransmitErrors   "}
+
Index: linux-2.6.21-rc1-arm/drivers/net/ixp4xx/mac_driver.c
===================================================================
--- /dev/null	1970-01-01 00:00:00.000000000 +0000
+++ linux-2.6.21-rc1-arm/drivers/net/ixp4xx/mac_driver.c	2007-02-21 02:24:46.000000000 -0800
@@ -0,0 +1,850 @@
+/*
+ * mac_driver.c - provide a network interface for each MAC
+ *
+ * Copyright (C) 2006 Christian Hohnstaedt <chohnstaedt@innominate.com>
+ *
+ * This file is released under the GPLv2
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/ethtool.h>
+#include <linux/slab.h>
+#include <linux/delay.h>
+#include <linux/err.h>
+#include <linux/dma-mapping.h>
+#include <linux/workqueue.h>
+#include <asm/io.h>
+#include <asm/irq.h>
+
+
+#include <linux/ixp_qmgr.h>
+#include <linux/ixp_npe.h>
+#include "mac.h"
+
+#define MDIO_INTERVAL (3*HZ)
+#define RX_QUEUE_PREFILL 64
+#define TX_QUEUE_PREFILL 16
+
+#define IXMAC_NAME "ixp4xx_mac"
+#define IXMAC_VERSION "0.3.1"
+
+#define MAC_DEFAULT_REG(mac, name) \
+	mac_write_reg(mac, MAC_ ## name, MAC_ ## name ## _DEFAULT)
+
+#define TX_DONE_QID 31
+
+#define DMA_ALLOC_SIZE 2048
+#define DMA_HDR_SIZE   (sizeof(struct npe_cont))
+#define DMA_BUF_SIZE (DMA_ALLOC_SIZE - DMA_HDR_SIZE)
+
+/* Since the NPEs use 1 Return Q for sent frames, we need a device
+ * independent return Q. We call it tx_doneq.
+ * It will be initialized during module load and uninitialized
+ * during module unload. Evil hack, but there is no choice :-(
+ */
+
+static struct qm_queue *tx_doneq = NULL;
+static int debug = -1;
+module_param(debug, int, 0);
+
+static int init_buffer(struct qm_queue *queue, int count)
+{
+	int i;
+	struct npe_cont *cont;
+
+	for (i=0; i<count; i++) {
+		cont = kmalloc(DMA_ALLOC_SIZE, GFP_KERNEL | GFP_DMA);
+		if (!cont)
+			goto err;
+
+		cont->phys = dma_map_single(queue->dev, cont, DMA_ALLOC_SIZE,
+				DMA_BIDIRECTIONAL);
+		if (dma_mapping_error(cont->phys))
+			goto err;
+
+		cont->data = cont+1;
+		/* now the buffer is on a 32 bit boundary.
+		 * we add 2 bytes for good alignment to SKB */
+		cont->data+=2;
+		cont->eth.next = 0;
+		cont->eth.buf_len = cpu_to_npe16(DMA_BUF_SIZE);
+		cont->eth.pkt_len = 0;
+		/* also add 2 alignment bytes from cont->data*/
+		cont->eth.phys_addr = cpu_to_npe32(cont->phys+ DMA_HDR_SIZE+ 2);
+
+		dma_sync_single(queue->dev, cont->phys, DMA_HDR_SIZE,
+				DMA_TO_DEVICE);
+
+		queue_put_entry(queue, cont->phys);
+		if (queue_stat(queue) == 2) { /* overflow */
+			dma_unmap_single(queue->dev, cont->phys, DMA_ALLOC_SIZE,
+				DMA_BIDIRECTIONAL);
+			goto err;
+		}
+	}
+	return i;
+err:
+	if (cont)
+		kfree(cont);
+	return i;
+}
+
+static int destroy_buffer(struct qm_queue *queue, int count)
+{
+	u32 phys;
+	int i;
+	struct npe_cont *cont;
+
+	for (i=0; i<count; i++) {
+		phys = queue_get_entry(queue) & ~0xf;
+		if (!phys)
+			break;
+		dma_unmap_single(queue->dev, phys, DMA_ALLOC_SIZE,
+				DMA_BIDIRECTIONAL);
+		cont = dma_to_virt(queue->dev, phys);
+		kfree(cont);
+	}
+	return i;
+}
+
+static void mac_init(struct mac_info *mac)
+{
+	MAC_DEFAULT_REG(mac, TX_CNTRL2);
+	MAC_DEFAULT_REG(mac, RANDOM_SEED);
+	MAC_DEFAULT_REG(mac, THRESH_P_EMPTY);
+	MAC_DEFAULT_REG(mac, THRESH_P_FULL);
+	MAC_DEFAULT_REG(mac, TX_DEFER);
+	MAC_DEFAULT_REG(mac, TX_TWO_DEFER_1);
+	MAC_DEFAULT_REG(mac, TX_TWO_DEFER_2);
+	MAC_DEFAULT_REG(mac, SLOT_TIME);
+	MAC_DEFAULT_REG(mac, INT_CLK_THRESH);
+	MAC_DEFAULT_REG(mac, BUF_SIZE_TX);
+	MAC_DEFAULT_REG(mac, TX_CNTRL1);
+	MAC_DEFAULT_REG(mac, RX_CNTRL1);
+}
+
+static void mac_set_uniaddr(struct net_device *dev)
+{
+	int i;
+	struct mac_info *mac = netdev_priv(dev);
+	struct npe_info *npe = dev_get_drvdata(mac->npe_dev);
+
+	/* check for multicast */
+	if (dev->dev_addr[0] & 1)
+		return;
+
+	npe_mh_setportaddr(npe, mac->plat, dev->dev_addr);
+	npe_mh_disable_firewall(npe, mac->plat);
+	for (i=0; i<dev->addr_len; i++)
+		mac_write_reg(mac, MAC_UNI_ADDR + i, dev->dev_addr[i]);
+}
+
+static void update_duplex_mode(struct net_device *dev)
+{
+	struct mac_info *mac = netdev_priv(dev);
+	if (netif_msg_link(mac)) {
+		printk(KERN_DEBUG "Link of %s is %s-duplex\n", dev->name,
+				mac->mii.full_duplex ? "full" : "half");
+	}
+	if (mac->mii.full_duplex) {
+		mac_reset_regbit(mac, MAC_TX_CNTRL1, TX_CNTRL1_DUPLEX);
+	} else {
+		mac_set_regbit(mac, MAC_TX_CNTRL1, TX_CNTRL1_DUPLEX);
+	}
+}
+
+static int media_check(struct net_device *dev, int init)
+{
+	struct mac_info *mac = netdev_priv(dev);
+
+	if (mii_check_media(&mac->mii, netif_msg_link(mac), init)) {
+		update_duplex_mode(dev);
+		return 1;
+	}
+	return 0;
+}
+
+static void get_npe_stats(struct mac_info *mac, u32 *buf, int len, int reset)
+{
+	struct npe_info *npe = dev_get_drvdata(mac->npe_dev);
+	u32 phys;
+
+	memset(buf, len, 0);
+	phys = dma_map_single(mac->npe_dev, buf, len, DMA_BIDIRECTIONAL);
+	npe_mh_get_stats(npe, mac->plat, phys, reset);
+	dma_unmap_single(mac->npe_dev, phys, len, DMA_BIDIRECTIONAL);
+}
+
+static void irqcb_recv(struct qm_queue *queue)
+{
+	struct net_device *dev = queue->cb_data;
+
+	queue_ack_irq(queue);
+	queue_disable_irq(queue);
+	if (netif_running(dev))
+		netif_rx_schedule(dev);
+}
+
+int ix_recv(struct net_device *dev, int *budget, struct qm_queue *queue)
+{
+	struct mac_info *mac = netdev_priv(dev);
+	struct sk_buff *skb;
+	u32 phys;
+	struct npe_cont *cont;
+
+	while (*budget > 0 && netif_running(dev) ) {
+		int len;
+		phys = queue_get_entry(queue) & ~0xf;
+		if (!phys)
+			break;
+		dma_sync_single(queue->dev, phys, DMA_HDR_SIZE,
+				DMA_FROM_DEVICE);
+		cont = dma_to_virt(queue->dev, phys);
+		len = npe_to_cpu16(cont->eth.pkt_len) -4; /* strip FCS */
+
+		if (unlikely(netif_msg_rx_status(mac))) {
+			printk(KERN_DEBUG "%s: RX packet size: %u\n",
+				dev->name, len);
+			queue_state(mac->rxq);
+			queue_state(mac->rxdoneq);
+		}
+		skb = dev_alloc_skb(len + 2);
+		if (likely(skb)) {
+			skb->dev = dev;
+			skb_reserve(skb, 2);
+			dma_sync_single(queue->dev, cont->eth.phys_addr, len,
+					DMA_FROM_DEVICE);
+#ifdef CONFIG_NPE_ADDRESS_COHERENT
+		        /* swap the payload of the SKB */
+	        	{
+				u32 *t = (u32*)(skb->data-2);
+				u32 *s = (u32*)(cont->data-2);
+				int i, j = (len+5)/4;
+				for (i=0; i<j; i++)
+					t[i] = cpu_to_be32(s[i]);
+			}
+#else			
+			eth_copy_and_sum(skb, cont->data, len, 0);
+#endif
+			skb_put(skb, len);
+			skb->protocol = eth_type_trans(skb, dev);
+			dev->last_rx = jiffies;
+			netif_receive_skb(skb);
+			mac->stat.rx_packets++;
+			mac->stat.rx_bytes += skb->len;
+		} else {
+			mac->stat.rx_dropped++;
+		}
+		cont->eth.buf_len = cpu_to_npe16(DMA_BUF_SIZE);
+		cont->eth.pkt_len = 0;
+		dma_sync_single(queue->dev, phys, DMA_HDR_SIZE, DMA_TO_DEVICE);
+		queue_put_entry(mac->rxq, phys);
+		dev->quota--;
+		(*budget)--;
+	}
+
+	return !budget;
+}
+
+static int ix_poll(struct net_device *dev, int *budget)
+{
+	struct mac_info *mac = netdev_priv(dev);
+	struct qm_queue *queue = mac->rxdoneq;
+
+	for (;;) {
+		if (ix_recv(dev, budget, queue))
+			return 1;
+		netif_rx_complete(dev);
+		queue_enable_irq(queue);
+		if (!queue_len(queue))
+			break;
+		queue_disable_irq(queue);
+		if (netif_rx_reschedule(dev, 0))
+			break;
+	}
+	return 0;
+}
+
+static void ixmac_set_rx_mode (struct net_device *dev)
+{
+	struct mac_info *mac = netdev_priv(dev);
+	struct dev_mc_list *mclist;
+	u8 aset[dev->addr_len], aclear[dev->addr_len];
+	int i,j;
+
+	if (dev->flags & IFF_PROMISC) {
+		mac_reset_regbit(mac, MAC_RX_CNTRL1, RX_CNTRL1_ADDR_FLTR_EN);
+	} else {
+		mac_set_regbit(mac, MAC_RX_CNTRL1, RX_CNTRL1_ADDR_FLTR_EN);
+
+		mclist = dev->mc_list;
+		memset(aset, 0xff, dev->addr_len);
+		memset(aclear, 0x00, dev->addr_len);
+		for (i = 0; mclist && i < dev->mc_count; i++) {
+			for (j=0; j< dev->addr_len; j++) {
+				aset[j] &= mclist->dmi_addr[j];
+				aclear[j] |= mclist->dmi_addr[j];
+			}
+			mclist = mclist->next;
+		}
+		for (j=0; j< dev->addr_len; j++) {
+			aclear[j] = aset[j] | ~aclear[j];
+		}
+		for (i=0; i<dev->addr_len; i++) {
+			mac_write_reg(mac, MAC_ADDR + i, aset[i]);
+			mac_write_reg(mac, MAC_ADDR_MASK + i, aclear[i]);
+		}
+	}
+}
+
+static int ixmac_open (struct net_device *dev)
+{
+	struct mac_info *mac = netdev_priv(dev);
+	struct npe_info *npe = dev_get_drvdata(mac->npe_dev);
+	u32 buf[NPE_STAT_NUM];
+	int i;
+	u32 phys;
+
+	/* first check if the NPE is up and running */
+	if (!( npe_status(npe) & IX_NPEDL_EXCTL_STATUS_RUN)) {
+		printk(KERN_ERR "%s: %s not running\n", dev->name,
+				npe->plat->name);
+		return -EIO;
+	}
+	if (npe_mh_status(npe)) {
+		printk(KERN_ERR "%s: %s not responding\n", dev->name,
+				npe->plat->name);
+		return -EIO;
+	}
+	mac->txq_pkt += init_buffer(mac->txq, TX_QUEUE_PREFILL - mac->txq_pkt);
+	mac->rxq_pkt += init_buffer(mac->rxq, RX_QUEUE_PREFILL - mac->rxq_pkt);
+
+	queue_enable_irq(mac->rxdoneq);
+
+	/* drain all buffers from then RX-done-q to make the IRQ happen */
+	while ((phys = queue_get_entry(mac->rxdoneq) & ~0xf)) {
+		struct npe_cont *cont;
+		cont = dma_to_virt(mac->rxdoneq->dev, phys);
+		cont->eth.buf_len = cpu_to_npe16(DMA_BUF_SIZE);
+		cont->eth.pkt_len = 0;
+		dma_sync_single(mac->rxdoneq->dev, phys, DMA_HDR_SIZE,
+				DMA_TO_DEVICE);
+		queue_put_entry(mac->rxq, phys);
+	}
+	mac_init(mac);
+	npe_mh_set_rxqid(npe, mac->plat, mac->plat->rxdoneq_id);
+	get_npe_stats(mac, buf, sizeof(buf), 1); /* reset stats */
+	get_npe_stats(mac, buf, sizeof(buf), 0);
+	/*
+	 * if the extended stats contain random values
+	 * the NPE image lacks extendet statistic counters
+	 */
+	for (i=NPE_STAT_NUM_BASE; i<NPE_STAT_NUM; i++) {
+		if (buf[i] >10000)
+			break;
+	}
+	mac->npe_stat_num = i<NPE_STAT_NUM ? NPE_STAT_NUM_BASE : NPE_STAT_NUM;
+	mac->npe_stat_num += NPE_Q_STAT_NUM;
+
+	mac_set_uniaddr(dev);
+	media_check(dev, 1);
+	ixmac_set_rx_mode(dev);
+	netif_start_queue(dev);
+	schedule_delayed_work(&mac->mdio_thread, MDIO_INTERVAL);
+	if (netif_msg_ifup(mac)) {
+		 printk(KERN_DEBUG "%s: open " IXMAC_NAME
+		 	" RX queue %d bufs, TX queue %d bufs\n",
+			 dev->name, mac->rxq_pkt, mac->txq_pkt);
+	}
+	return 0;
+}
+
+static int ixmac_start_xmit (struct sk_buff *skb, struct net_device *dev)
+{
+	struct mac_info *mac = netdev_priv(dev);
+	struct npe_cont *cont;
+	u32 phys;
+	struct qm_queue *queue = mac->txq;
+
+	if (unlikely(skb->len > DMA_BUF_SIZE)) {
+		dev_kfree_skb(skb);
+		mac->stat.tx_errors++;
+		return NETDEV_TX_OK;
+	}
+	phys = queue_get_entry(tx_doneq) & ~0xf;
+	if (!phys)
+		goto busy;
+	cont = dma_to_virt(queue->dev, phys);
+#ifdef CONFIG_NPE_ADDRESS_COHERENT
+	/* swap the payload of the SKB */
+	{
+		u32 *s = (u32*)(skb->data-2);
+		u32 *t = (u32*)(cont->data-2);
+		int i,j = (skb->len+5) / 4;
+		for (i=0; i<j; i++)
+			t[i] = cpu_to_be32(s[i]);
+	}
+#else			
+	//skb_copy_and_csum_dev(skb, cont->data);
+	memcpy(cont->data, skb->data, skb->len);
+#endif
+	cont->eth.buf_len = cpu_to_npe16(DMA_BUF_SIZE);
+	cont->eth.pkt_len = cpu_to_npe16(skb->len);
+	/* disable VLAN functions in NPE image for now */
+	cont->eth.flags = 0;
+	dma_sync_single(queue->dev, phys, skb->len + DMA_HDR_SIZE,
+			DMA_TO_DEVICE);
+	queue_put_entry(queue, phys);
+	if (queue_stat(queue) == 2) { /* overflow */
+		queue_put_entry(tx_doneq, phys);
+		goto busy;
+	}
+        dev_kfree_skb(skb);
+
+	mac->stat.tx_packets++;
+	mac->stat.tx_bytes += skb->len;
+	dev->trans_start = jiffies;
+	if (netif_msg_tx_queued(mac)) {
+		printk(KERN_DEBUG "%s: TX packet size %u\n",
+				dev->name, skb->len);
+		queue_state(mac->txq);
+		queue_state(tx_doneq);
+	}
+	return NETDEV_TX_OK;
+busy:
+	return NETDEV_TX_BUSY;
+}
+
+static int ixmac_close (struct net_device *dev)
+{
+	struct mac_info *mac = netdev_priv(dev);
+
+	netif_stop_queue (dev);
+	queue_disable_irq(mac->rxdoneq);
+
+	mac->txq_pkt -= destroy_buffer(tx_doneq, mac->txq_pkt);
+	mac->rxq_pkt -= destroy_buffer(mac->rxq, mac->rxq_pkt);
+
+	cancel_rearming_delayed_work(&(mac->mdio_thread));
+
+	if (netif_msg_ifdown(mac)) {
+		printk(KERN_DEBUG "%s: close " IXMAC_NAME
+			" RX queue %d bufs, TX queue %d bufs\n",
+			dev->name, mac->rxq_pkt, mac->txq_pkt);
+	}
+	return 0;
+}
+
+static int ixmac_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
+{
+	struct mac_info *mac = netdev_priv(dev);
+	int rc, duplex_changed;
+
+	if (!netif_running(dev))
+		return -EINVAL;
+	if (!try_module_get(THIS_MODULE))
+		return -ENODEV;
+	rc = generic_mii_ioctl(&mac->mii, if_mii(rq), cmd, &duplex_changed);
+	module_put(THIS_MODULE);
+	if (duplex_changed)
+		update_duplex_mode(dev);
+	return rc;
+}
+
+static struct net_device_stats *ixmac_stats (struct net_device *dev)
+{
+	struct mac_info *mac = netdev_priv(dev);
+	return &mac->stat;
+}
+
+static void ixmac_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info)
+{
+	struct mac_info *mac = netdev_priv(dev);
+	struct npe_info *npe = dev_get_drvdata(mac->npe_dev);
+
+	strcpy(info->driver, IXMAC_NAME);
+	strcpy(info->version, IXMAC_VERSION);
+	if  (npe_status(npe) & IX_NPEDL_EXCTL_STATUS_RUN) {
+		snprintf(info->fw_version, 32, "%d.%d func [%d]",
+			npe->img_info[2], npe->img_info[3], npe->img_info[1]);
+	}
+	strncpy(info->bus_info, npe->plat->name, ETHTOOL_BUSINFO_LEN);
+}
+
+static int ixmac_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
+{
+	struct mac_info *mac = netdev_priv(dev);
+	mii_ethtool_gset(&mac->mii, cmd);
+	return 0;
+}
+
+static int ixmac_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
+{
+	struct mac_info *mac = netdev_priv(dev);
+	int rc;
+	rc = mii_ethtool_sset(&mac->mii, cmd);
+	return rc;
+}
+
+static int ixmac_nway_reset(struct net_device *dev)
+{
+	struct mac_info *mac = netdev_priv(dev);
+	return mii_nway_restart(&mac->mii);
+}
+
+static u32 ixmac_get_link(struct net_device *dev)
+{
+	struct mac_info *mac = netdev_priv(dev);
+	return mii_link_ok(&mac->mii);
+}
+
+static const int mac_reg_list[] = MAC_REG_LIST;
+
+static int ixmac_get_regs_len(struct net_device *dev)
+{
+	return ARRAY_SIZE(mac_reg_list);
+}
+
+static void
+ixmac_get_regs(struct net_device *dev, struct ethtool_regs *regs, void *regbuf)
+{
+	int i;
+	struct mac_info *mac = netdev_priv(dev);
+	u8 *buf = regbuf;
+
+	for (i=0; i<regs->len; i++) {
+		buf[i] = mac_read_reg(mac, mac_reg_list[i]);
+	}
+}
+
+static struct {
+	const char str[ETH_GSTRING_LEN];
+} ethtool_stats_keys[NPE_STAT_NUM + NPE_Q_STAT_NUM] = {
+	NPE_Q_STAT_STRINGS
+	NPE_STAT_STRINGS
+};
+
+static void ixmac_get_strings(struct net_device *dev, u32 stringset, u8 *data)
+{
+	struct mac_info *mac = netdev_priv(dev);
+	memcpy(data, ethtool_stats_keys, mac->npe_stat_num * ETH_GSTRING_LEN);
+}
+
+static int ixmac_get_stats_count(struct net_device *dev)
+{
+	struct mac_info *mac = netdev_priv(dev);
+	return mac->npe_stat_num;
+}
+
+static u32 ixmac_get_msglevel(struct net_device *dev)
+{
+	struct mac_info *mac = netdev_priv(dev);
+	return mac->msg_enable;
+}
+
+static void ixmac_set_msglevel(struct net_device *dev, u32 datum)
+{
+	struct mac_info *mac = netdev_priv(dev);
+	mac->msg_enable = datum;
+}
+
+static void ixmac_get_ethtool_stats(struct net_device *dev,
+		struct ethtool_stats *stats, u64 *data)
+{
+	int i;
+	struct mac_info *mac = netdev_priv(dev);
+	u32 buf[NPE_STAT_NUM];
+
+	data[0] = queue_len(mac->rxq);
+	data[1] = queue_len(mac->rxdoneq);
+	data[2] = queue_len(mac->txq);
+	data[3] = queue_len(tx_doneq);
+
+	get_npe_stats(mac, buf, sizeof(buf), 0);
+
+	for (i=0; i<stats->n_stats-4; i++) {
+		data[i+4] = npe_to_cpu32(buf[i]);
+	}
+}
+
+static struct ethtool_ops ixmac_ethtool_ops = {
+	.get_drvinfo		= ixmac_get_drvinfo,
+	.get_settings		= ixmac_get_settings,
+	.set_settings		= ixmac_set_settings,
+	.nway_reset		= ixmac_nway_reset,
+	.get_link		= ixmac_get_link,
+	.get_msglevel           = ixmac_get_msglevel,
+	.set_msglevel           = ixmac_set_msglevel,
+	.get_regs_len		= ixmac_get_regs_len,
+	.get_regs		= ixmac_get_regs,
+	.get_perm_addr		= ethtool_op_get_perm_addr,
+	.get_strings		= ixmac_get_strings,
+	.get_stats_count	= ixmac_get_stats_count,
+	.get_ethtool_stats	= ixmac_get_ethtool_stats,
+};
+
+static void mac_mdio_thread(struct work_struct *work)
+{
+	struct mac_info *mac = container_of(work, struct mac_info,
+			mdio_thread.work);
+	struct net_device *dev = mac->netdev;
+
+	media_check(dev, 0);
+	schedule_delayed_work(&mac->mdio_thread, MDIO_INTERVAL);
+}
+
+static int mac_probe(struct platform_device *pdev)
+{
+	struct resource *res;
+	struct mac_info *mac;
+	struct net_device *dev;
+	struct npe_info *npe;
+	struct mac_plat_info *plat = pdev->dev.platform_data;
+	int size, ret;
+
+	if (!(res = platform_get_resource(pdev, IORESOURCE_MEM, 0))) {
+		return -EIO;
+	}
+	if (!(dev = alloc_etherdev (sizeof(struct mac_info)))) {
+		return -ENOMEM;
+	}
+	SET_MODULE_OWNER(dev);
+	SET_NETDEV_DEV(dev, &pdev->dev);
+	mac = netdev_priv(dev);
+	mac->netdev = dev;
+
+	size = res->end - res->start +1;
+	mac->res = request_mem_region(res->start, size, IXMAC_NAME);
+	if (!mac->res) {
+		ret = -EBUSY;
+		goto out_free;
+	}
+
+	mac->addr = ioremap(res->start, size);
+	if (!mac->addr) {
+		ret = -ENOMEM;
+		goto out_rel;
+	}
+
+	dev->open = ixmac_open;
+	dev->hard_start_xmit = ixmac_start_xmit;
+	dev->poll = ix_poll;
+	dev->stop = ixmac_close;
+	dev->get_stats = ixmac_stats;
+	dev->do_ioctl = ixmac_ioctl;
+	dev->set_multicast_list = ixmac_set_rx_mode;
+	dev->ethtool_ops = &ixmac_ethtool_ops;
+
+	dev->weight = 16;
+	dev->tx_queue_len = 100;
+
+	mac->npe_dev = get_npe_by_id(plat->npe_id);
+	if (!mac->npe_dev) {
+		ret = -EIO;
+		goto out_unmap;
+	}
+	npe = dev_get_drvdata(mac->npe_dev);
+
+	mac->rxq = request_queue(plat->rxq_id, 128);
+	if (IS_ERR(mac->rxq)) {
+		printk(KERN_ERR "Error requesting Q: %d\n", plat->rxq_id);
+		ret = -EBUSY;
+		goto out_putmod;
+	}
+	mac->txq = request_queue(plat->txq_id, 128);
+	if (IS_ERR(mac->txq)) {
+		printk(KERN_ERR "Error requesting Q: %d\n", plat->txq_id);
+		ret = -EBUSY;
+		goto out_putmod;
+	}
+	mac->rxdoneq = request_queue(plat->rxdoneq_id, 128);
+	if (IS_ERR(mac->rxdoneq)) {
+		printk(KERN_ERR "Error requesting Q: %d\n", plat->rxdoneq_id);
+		ret = -EBUSY;
+		goto out_putmod;
+	}
+	mac->rxdoneq->irq_cb = irqcb_recv;
+	mac->rxdoneq->cb_data = dev;
+	queue_set_watermarks(mac->rxdoneq, 0, 0);
+	queue_set_irq_src(mac->rxdoneq, Q_IRQ_ID_NOT_E);
+
+	mac->qmgr = dev_get_drvdata(mac->rxq->dev);
+	if (register_netdev (dev)) {
+		ret = -EIO;
+		goto out_putmod;
+	}
+
+	mac->plat = plat;
+	mac->npe_stat_num = NPE_STAT_NUM_BASE;
+	mac->msg_enable = netif_msg_init(debug, MAC_DEF_MSG_ENABLE);
+
+	platform_set_drvdata(pdev, dev);
+
+	mac_write_reg(mac, MAC_CORE_CNTRL, CORE_RESET);
+	udelay(500);
+	mac_write_reg(mac, MAC_CORE_CNTRL, CORE_MDC_EN);
+
+	init_mdio(dev, plat->phy_id);
+
+	INIT_DELAYED_WORK(&mac->mdio_thread, mac_mdio_thread);
+
+	/* The place of the MAC address is very system dependent.
+	 * Here we use a random one to be replaced by one of the
+	 * following commands:
+	 * "ip link set address 02:03:04:04:04:01 dev eth0"
+	 * "ifconfig eth0 hw ether 02:03:04:04:04:07"
+	*/
+
+	if (is_zero_ether_addr(plat->hwaddr)) {
+		random_ether_addr(dev->dev_addr);
+		dev->dev_addr[5] = plat->phy_id;
+	}
+	else
+		memcpy(dev->dev_addr, plat->hwaddr, 6);
+
+	printk(KERN_INFO IXMAC_NAME " driver " IXMAC_VERSION
+			": %s on %s with PHY[%d] initialized\n",
+			dev->name, npe->plat->name, plat->phy_id);
+
+	return 0;
+
+out_putmod:
+	if (mac->rxq)
+		release_queue(mac->rxq);
+	if (mac->txq)
+		release_queue(mac->txq);
+	if (mac->rxdoneq)
+		release_queue(mac->rxdoneq);
+	module_put(mac->npe_dev->driver->owner);
+out_unmap:
+	iounmap(mac->addr);
+out_rel:
+	release_resource(mac->res);
+out_free:
+	kfree(mac);
+	return ret;
+}
+
+static void drain_npe(struct mac_info *mac)
+{
+	struct npe_info *npe = dev_get_drvdata(mac->npe_dev);
+	struct npe_cont *cont;
+	u32 phys;
+	int loop = 0;
+
+	/* Now there are some skb hold by the NPE.
+	 * We switch the MAC in loopback mode and send a pseudo packet
+	 * that will be returned by the NPE in its last SKB.
+	 * We will also try to isolate the PHY to keep the packets internal.
+	 */
+
+	if (mac->txq_pkt <2)
+		mac->txq_pkt += init_buffer(tx_doneq, 5);
+
+	if (npe_status(npe) & IX_NPEDL_EXCTL_STATUS_RUN) {
+		mac_reset_regbit(mac, MAC_CORE_CNTRL, CORE_MDC_EN);
+		mac_set_regbit(mac, MAC_RX_CNTRL1, RX_CNTRL1_LOOP_EN);
+
+		npe_mh_npe_loopback_mode(npe, mac->plat, 1);
+		mdelay(200);
+
+		while (mac->rxq_pkt && loop++ < 2000 ) {
+			phys = queue_get_entry(tx_doneq) & ~0xf;
+			if (!phys)
+				break;
+			cont = dma_to_virt(queue->dev, phys);
+			/* actually the packets should never leave the system,
+			 * but if they do, they shall contain 0s instead of
+			 * intresting random data....
+			 */
+			memset(cont->data, 0, 64);
+			cont->eth.pkt_len = 64;
+			dma_sync_single(mac->txq->dev, phys, 64 + DMA_HDR_SIZE,
+					DMA_TO_DEVICE);
+			queue_put_entry(mac->txq, phys);
+			if (queue_stat(mac->txq) == 2) { /* overflow */
+				queue_put_entry(tx_doneq, phys);
+				break;
+			}
+			mdelay(1);
+			mac->rxq_pkt -= destroy_buffer(mac->rxdoneq,
+					mac->rxq_pkt);
+		}
+		npe_mh_npe_loopback_mode(npe, mac->plat, 0);
+	}
+	/* Flush MAC TX fifo to drain the bogus packages */
+	mac_set_regbit(mac, MAC_CORE_CNTRL, CORE_TX_FIFO_FLUSH);
+	mac_reset_regbit(mac, MAC_RX_CNTRL1, RX_CNTRL1_RX_EN);
+	mac_reset_regbit(mac, MAC_TX_CNTRL1, TX_CNTRL1_TX_EN);
+	mac_reset_regbit(mac, MAC_RX_CNTRL1, RX_CNTRL1_LOOP_EN);
+	mac_reset_regbit(mac, MAC_CORE_CNTRL, CORE_TX_FIFO_FLUSH);
+	mac_reset_regbit(mac, MAC_CORE_CNTRL, CORE_TX_FIFO_FLUSH);
+}
+
+static int mac_remove(struct platform_device *pdev)
+{
+	struct net_device* dev = platform_get_drvdata(pdev);
+	struct mac_info *mac = netdev_priv(dev);
+
+	unregister_netdev(dev);
+
+	mac->rxq_pkt -= destroy_buffer(mac->rxq, mac->rxq_pkt);
+	if (mac->rxq_pkt)
+		drain_npe(mac);
+
+	mac->txq_pkt -= destroy_buffer(mac->txq, mac->txq_pkt);
+	mac->txq_pkt -= destroy_buffer(tx_doneq, mac->txq_pkt);
+
+	if (mac->rxq_pkt || mac->txq_pkt)
+		printk("Buffers lost in NPE: RX:%d, TX:%d\n",
+				mac->rxq_pkt,  mac->txq_pkt);
+
+	release_queue(mac->txq);
+	release_queue(mac->rxq);
+	release_queue(mac->rxdoneq);
+
+	flush_scheduled_work();
+	return_npe_dev(mac->npe_dev);
+
+	iounmap(mac->addr);
+	release_resource(mac->res);
+	platform_set_drvdata(pdev, NULL);
+	free_netdev(dev);
+	return 0;
+}
+
+static struct platform_driver ixp4xx_mac = {
+	.driver.name    = IXMAC_NAME,
+	.probe          = mac_probe,
+	.remove         = mac_remove,
+};
+
+static int __init init_mac(void)
+{
+	/* The TX done Queue handles skbs sent out by the NPE */
+	tx_doneq = request_queue(TX_DONE_QID, 128);
+	if (IS_ERR(tx_doneq)) {
+		printk(KERN_ERR "Error requesting Q: %d\n", TX_DONE_QID);
+		return -EBUSY;
+	}
+	return platform_driver_register(&ixp4xx_mac);
+}
+
+static void __exit finish_mac(void)
+{
+	platform_driver_unregister(&ixp4xx_mac);
+	if (tx_doneq) {
+		release_queue(tx_doneq);
+	}
+}
+
+module_init(init_mac);
+module_exit(finish_mac);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Christian Hohnstaedt <chohnstaedt@innominate.com>");
+
Index: linux-2.6.21-rc1-arm/drivers/net/ixp4xx/npe.c
===================================================================
--- /dev/null	1970-01-01 00:00:00.000000000 +0000
+++ linux-2.6.21-rc1-arm/drivers/net/ixp4xx/npe.c	2007-02-21 02:24:35.000000000 -0800
@@ -0,0 +1,291 @@
+
+#include <linux/ixp_npe.h>
+#include <asm/hardware.h>
+
+#define RESET_NPE_PARITY                0x0800
+#define PARITY_BIT_MASK             0x3F00FFFF
+#define CONFIG_CTRL_REG_MASK        0x3F3FFFFF
+#define MAX_RETRIES                    1000000
+#define NPE_PHYS_REG                        32
+#define RESET_MBST_VAL              0x0000F0F0
+#define NPE_REGMAP	            0x0000001E
+#define INSTR_WR_REG_SHORT          0x0000C000
+#define INSTR_WR_REG_BYTE           0x00004000
+#define MASK_ECS_REG_0_NEXTPC       0x1FFF0000
+
+#define INSTR_RD_FIFO               0x0F888220
+#define INSTR_RESET_MBOX            0x0FAC8210
+
+#define ECS_REG_0_LDUR                 8
+#define ECS_REG_1_CCTXT               16
+#define ECS_REG_1_SELCTXT              0
+
+#define ECS_BG_CTXT_REG_0           0x00
+#define ECS_BG_CTXT_REG_1           0x01
+#define ECS_BG_CTXT_REG_2           0x02
+#define ECS_PRI_1_CTXT_REG_0        0x04
+#define ECS_PRI_1_CTXT_REG_1        0x05
+#define ECS_PRI_1_CTXT_REG_2        0x06
+#define ECS_PRI_2_CTXT_REG_0        0x08
+#define ECS_PRI_2_CTXT_REG_1        0x09
+#define ECS_PRI_2_CTXT_REG_2        0x0A
+#define ECS_DBG_CTXT_REG_0          0x0C
+#define ECS_DBG_CTXT_REG_1          0x0D
+#define ECS_DBG_CTXT_REG_2          0x0E
+#define ECS_INSTRUCT_REG            0x11
+
+#define ECS_BG_CTXT_REG_0_RESET     0xA0000000
+#define ECS_BG_CTXT_REG_1_RESET     0x01000000
+#define ECS_BG_CTXT_REG_2_RESET     0x00008000
+#define ECS_PRI_1_CTXT_REG_0_RESET  0x20000080
+#define ECS_PRI_1_CTXT_REG_1_RESET  0x01000000
+#define ECS_PRI_1_CTXT_REG_2_RESET  0x00008000
+#define ECS_PRI_2_CTXT_REG_0_RESET  0x20000080
+#define ECS_PRI_2_CTXT_REG_1_RESET  0x01000000
+#define ECS_PRI_2_CTXT_REG_2_RESET  0x00008000
+#define ECS_DBG_CTXT_REG_0_RESET    0x20000000
+#define ECS_DBG_CTXT_REG_1_RESET    0x00000000
+#define ECS_DBG_CTXT_REG_2_RESET    0x001E0000
+#define ECS_INSTRUCT_REG_RESET      0x1003C00F
+
+static struct { u32 reg; u32 val; } ecs_reset[] =
+{
+    { ECS_BG_CTXT_REG_0,    ECS_BG_CTXT_REG_0_RESET },
+    { ECS_BG_CTXT_REG_1,    ECS_BG_CTXT_REG_1_RESET },
+    { ECS_BG_CTXT_REG_2,    ECS_BG_CTXT_REG_2_RESET },
+    { ECS_PRI_1_CTXT_REG_0, ECS_PRI_1_CTXT_REG_0_RESET },
+    { ECS_PRI_1_CTXT_REG_1, ECS_PRI_1_CTXT_REG_1_RESET },
+    { ECS_PRI_1_CTXT_REG_2, ECS_PRI_1_CTXT_REG_2_RESET },
+    { ECS_PRI_2_CTXT_REG_0, ECS_PRI_2_CTXT_REG_0_RESET },
+    { ECS_PRI_2_CTXT_REG_1, ECS_PRI_2_CTXT_REG_1_RESET },
+    { ECS_PRI_2_CTXT_REG_2, ECS_PRI_2_CTXT_REG_2_RESET },
+    { ECS_DBG_CTXT_REG_0,   ECS_DBG_CTXT_REG_0_RESET },
+    { ECS_DBG_CTXT_REG_1,   ECS_DBG_CTXT_REG_1_RESET },
+    { ECS_DBG_CTXT_REG_2,   ECS_DBG_CTXT_REG_2_RESET },
+    { ECS_INSTRUCT_REG,     ECS_INSTRUCT_REG_RESET }
+};
+
+/* actually I have no idea what I'm doing here !!
+ * I only rewrite the "reset" sequence the way Intel does it.
+ */
+
+static void npe_debg_preexec(struct npe_info *npe)
+{
+	u32 r = IX_NPEDL_MASK_ECS_DBG_REG_2_IF | IX_NPEDL_MASK_ECS_DBG_REG_2_IE;
+
+	npe->exec_count = npe_reg_read(npe, IX_NPEDL_REG_OFFSET_EXCT);
+	npe_reg_write(npe, IX_NPEDL_REG_OFFSET_EXCT, 0);
+	npe->ctx_reg2 = npe_read_ecs_reg(npe, ECS_DBG_CTXT_REG_2);
+	npe_write_ecs_reg(npe, ECS_DBG_CTXT_REG_2, npe->ctx_reg2 | r);
+}
+
+static void npe_debg_postexec(struct npe_info *npe)
+{
+	npe_write_ecs_reg(npe, ECS_DBG_CTXT_REG_0, 0);
+	npe_write_exctl(npe, IX_NPEDL_EXCTL_CMD_NPE_CLR_PIPE);
+	npe_reg_write(npe, IX_NPEDL_REG_OFFSET_EXCT, npe->exec_count);
+	npe_write_ecs_reg(npe, ECS_DBG_CTXT_REG_2, npe->ctx_reg2);
+}
+
+static int
+npe_debg_inst_exec(struct npe_info *npe, u32 instr, u32 ctx, u32 ldur)
+{
+	u32 regval, wc;
+	int c = 0;
+
+	regval = IX_NPEDL_MASK_ECS_REG_0_ACTIVE |
+		(ldur << ECS_REG_0_LDUR);
+	npe_write_ecs_reg(npe, ECS_DBG_CTXT_REG_0 , regval);
+	/* set CCTXT at ECS DEBUG L3 to specify in which context
+	 * to execute the instruction
+	 */
+	regval = (ctx << ECS_REG_1_CCTXT) |
+		 (ctx << ECS_REG_1_SELCTXT);
+	npe_write_ecs_reg(npe, ECS_DBG_CTXT_REG_1, regval);
+
+	/* clear the pipeline */
+	npe_write_exctl(npe, IX_NPEDL_EXCTL_CMD_NPE_CLR_PIPE);
+
+	/* load NPE instruction into the instruction register */
+	npe_write_ecs_reg(npe, ECS_INSTRUCT_REG, instr);
+	/* we need this value later to wait for
+	 * completion of NPE execution step
+	 */
+	wc = npe_reg_read(npe, IX_NPEDL_REG_OFFSET_WC);
+	npe_write_exctl(npe, IX_NPEDL_EXCTL_CMD_NPE_STEP);
+
+	/* Watch Count register increments when NPE completes an instruction */
+	while (wc == npe_reg_read(npe, IX_NPEDL_REG_OFFSET_WC) &&
+			++c < MAX_RETRIES);
+
+	if (c >= MAX_RETRIES) {
+		printk(KERN_ERR "%s reset:npe_debg_inst_exec(): Timeout\n",
+				npe->plat->name);
+		return 1;
+	}
+	return 0;
+}
+
+static int npe_logical_reg_write8(struct npe_info *npe, u32 addr, u32 val)
+{
+	u32 instr;
+	val &= 0xff;
+	/* here we build the NPE assembler instruction:
+	 * mov8 d0, #0 */
+	instr = INSTR_WR_REG_BYTE |	/* OpCode */
+		addr << 9 |		/* base Operand */
+		(val & 0x1f) << 4 |	/* lower 5 bits to immediate data */
+		(val & ~0x1f) << (18-5);/* higher 3 bits to CoProc instr. */
+	/* and execute it */
+	return npe_debg_inst_exec(npe, instr, 0, 1);
+}
+
+static int npe_logical_reg_write16(struct npe_info *npe, u32 addr, u32 val)
+{
+	u32 instr;
+	/* here we build the NPE assembler instruction:
+	 * mov16 d0, #0 */
+	val &= 0xffff;
+	instr = INSTR_WR_REG_SHORT |	/* OpCode */
+		addr << 9 |		/* base Operand */
+		(val & 0x1f) << 4 |	/* lower 5 bits to immediate data */
+		(val & ~0x1f) << (18-5);/* higher 11 bits to CoProc instr. */
+	/* and execute it */
+	return npe_debg_inst_exec(npe, instr, 0, 1);
+}
+
+static int npe_logical_reg_write32(struct npe_info *npe, u32 addr, u32 val)
+{
+	/* write in 16 bit steps first the high and then the low value */
+	npe_logical_reg_write16(npe, addr, val >> 16);
+	return npe_logical_reg_write16(npe, addr+2, val & 0xffff);
+}
+
+void npe_reset(struct npe_info *npe)
+{
+	u32 reg, cfg_ctrl;
+	int i;
+	struct { u32 reset; int addr; int size; } ctx_reg[] = {
+		{ 0x80,  0x1b, 8  },
+		{ 0,     0x1c, 16 },
+		{ 0x820, 0x1e, 16 },
+		{ 0,     0x1f, 8  }
+	}, *cr;
+
+	cfg_ctrl = npe_reg_read(npe, IX_NPEDL_REG_OFFSET_CTL);
+	cfg_ctrl |= 0x3F000000;
+	/* disable the parity interrupt */
+	npe_reg_write(npe, IX_NPEDL_REG_OFFSET_CTL, cfg_ctrl & PARITY_BIT_MASK);
+
+	npe_debg_preexec(npe);
+
+	/* clear the FIFOs */
+	while (npe_reg_read(npe, IX_NPEDL_REG_OFFSET_WFIFO) ==
+					IX_NPEDL_MASK_WFIFO_VALID);
+	while (npe_reg_read(npe, IX_NPEDL_REG_OFFSET_STAT) ==
+					IX_NPEDL_MASK_STAT_OFNE)
+	{
+		u32 reg;
+		reg = npe_reg_read(npe, IX_NPEDL_REG_OFFSET_FIFO);
+		printk("%s reset: Read FIFO:=%x\n", npe->plat->name, reg);
+	}
+	while (npe_reg_read(npe, IX_NPEDL_REG_OFFSET_STAT) ==
+					IX_NPEDL_MASK_STAT_IFNE) {
+		npe_debg_inst_exec(npe, INSTR_RD_FIFO, 0, 0);
+	}
+
+	/*  Reset the mailbox reg */
+	npe_reg_write(npe, IX_NPEDL_REG_OFFSET_MBST, RESET_MBST_VAL);
+	npe_debg_inst_exec(npe, INSTR_RESET_MBOX, 0, 0);
+
+	/* Reset the physical registers in the NPE register file */
+	for (i=0; i<NPE_PHYS_REG; i++) {
+		npe_logical_reg_write16(npe, NPE_REGMAP, i >> 1);
+		npe_logical_reg_write32(npe, (i&1) *4, 0);
+	}
+
+	/* Reset the context store. Iterate over the 16 ctx s */
+	for(i=0; i<16; i++) {
+		for (reg=0; reg<4; reg++) {
+			/* There is no (STEVT) register for Context 0.
+			 * ignore if register=0 and ctx=0 */
+			if (!(reg || i))
+				continue;
+			 /* Context 0 has no STARTPC. Instead, this value is
+			  * used to set NextPC for Background ECS,
+			  * to set where NPE starts executing code
+			  */
+			if (!i && reg==1) {
+				u32 r;
+				r = npe_read_ecs_reg(npe, ECS_BG_CTXT_REG_0);
+				r &= ~MASK_ECS_REG_0_NEXTPC;
+				r |= (cr->reset << 16) & MASK_ECS_REG_0_NEXTPC;
+				continue;
+			}
+			cr = ctx_reg + reg;
+			switch (cr->size) {
+				case 8:
+					npe_logical_reg_write8(npe, cr->addr,
+						cr->reset);
+					break;
+				case 16:
+					npe_logical_reg_write16(npe, cr->addr,
+						cr->reset);
+			}
+		}
+	}
+	npe_debg_postexec(npe);
+
+	for (i=0; i< ARRAY_SIZE(ecs_reset); i++) {
+		npe_write_ecs_reg(npe, ecs_reset[i].reg, ecs_reset[i].val);
+	}
+	npe_write_exctl(npe, IX_NPEDL_EXCTL_CMD_CLR_PROFILE_CNT);
+
+	for (i=IX_NPEDL_REG_OFFSET_EXCT; i<=IX_NPEDL_REG_OFFSET_AP3; i+=4) {
+		npe_reg_write(npe, i, 0);
+	}
+
+	npe_reg_write(npe, IX_NPEDL_REG_OFFSET_WC, 0);
+
+	reg = *IXP4XX_EXP_CFG2;
+	reg |= 0x800 << npe->plat->id;  /* IX_FUSE_NPE[ABC] */
+	*IXP4XX_EXP_CFG2 = reg;
+	reg &= ~(0x800 << npe->plat->id);  /* IX_FUSE_NPE[ABC] */
+	*IXP4XX_EXP_CFG2 = reg;
+
+	npe_stop(npe);
+
+	npe_reg_write(npe, IX_NPEDL_REG_OFFSET_CTL,
+			cfg_ctrl & CONFIG_CTRL_REG_MASK);
+	npe->loaded = 0;
+}
+
+
+void npe_stop(struct npe_info *npe)
+{
+	npe_write_exctl(npe, IX_NPEDL_EXCTL_CMD_NPE_STOP);
+	npe_write_exctl(npe, IX_NPEDL_EXCTL_CMD_NPE_CLR_PIPE);
+}
+
+static void npe_reset_active(struct npe_info *npe, u32 reg)
+{
+	u32 regval;
+
+	regval = npe_read_ecs_reg(npe, reg);
+	regval &= ~IX_NPEDL_MASK_ECS_REG_0_ACTIVE;
+	npe_write_ecs_reg(npe, reg, regval);
+}
+
+void npe_start(struct npe_info *npe)
+{
+	npe_reset_active(npe, IX_NPEDL_ECS_PRI_1_CTXT_REG_0);
+	npe_reset_active(npe, IX_NPEDL_ECS_PRI_2_CTXT_REG_0);
+	npe_reset_active(npe, IX_NPEDL_ECS_DBG_CTXT_REG_0);
+
+	npe_write_exctl(npe, IX_NPEDL_EXCTL_CMD_NPE_CLR_PIPE);
+	npe_write_exctl(npe, IX_NPEDL_EXCTL_CMD_NPE_START);
+}
+
+EXPORT_SYMBOL(npe_stop);
+EXPORT_SYMBOL(npe_start);
+EXPORT_SYMBOL(npe_reset);
Index: linux-2.6.21-rc1-arm/drivers/net/ixp4xx/npe_mh.c
===================================================================
--- /dev/null	1970-01-01 00:00:00.000000000 +0000
+++ linux-2.6.21-rc1-arm/drivers/net/ixp4xx/npe_mh.c	2007-02-21 02:24:35.000000000 -0800
@@ -0,0 +1,170 @@
+/*
+ * npe_mh.c - NPE message handler.
+ *
+ * Copyright (C) 2006 Christian Hohnstaedt <chohnstaedt@innominate.com>
+ *
+ * This file is released under the GPLv2
+ */
+
+#include <linux/ixp_npe.h>
+#include <linux/slab.h>
+
+#define MAX_RETRY 200
+
+struct npe_mh_msg {
+	union {
+		u8 byte[8]; /* Very desciptive name, I know ... */
+		u32 data[2];
+	} u;
+};
+
+/*
+ * The whole code in this function must be reworked.
+ * It is in a state that works but is not rock solid
+ */
+static int send_message(struct npe_info *npe, struct npe_mh_msg *msg)
+{
+	int i,j;
+	u32 send[2], recv[2];
+
+	for (i=0; i<2; i++)
+		send[i] = be32_to_cpu(msg->u.data[i]);
+
+	if ((npe_reg_read(npe, IX_NPEDL_REG_OFFSET_STAT) &
+				IX_NPEMH_NPE_STAT_IFNE))
+		return -1;
+
+	npe_reg_write(npe, IX_NPEDL_REG_OFFSET_FIFO, send[0]);
+	for(i=0; i<MAX_RETRY; i++) {
+		/* if the IFNF status bit is unset then the inFIFO is full */
+		if (npe_reg_read(npe, IX_NPEDL_REG_OFFSET_STAT) &
+				IX_NPEMH_NPE_STAT_IFNF)
+			break;
+	}
+	if (i>=MAX_RETRY)
+		return -1;
+	npe_reg_write(npe, IX_NPEDL_REG_OFFSET_FIFO, send[1]);
+	i=0;
+	while (!(npe_reg_read(npe, IX_NPEDL_REG_OFFSET_STAT) &
+					IX_NPEMH_NPE_STAT_OFNE)) {
+		if (i++>MAX_RETRY) {
+			printk("Waiting for Output FIFO NotEmpty failed\n");
+			return -1;
+		}
+	}
+	//printk("Output FIFO Not Empty. Loops: %d\n", i);
+	j=0;
+	while (npe_reg_read(npe, IX_NPEDL_REG_OFFSET_STAT) &
+					IX_NPEMH_NPE_STAT_OFNE) {
+		recv[j&1] = npe_reg_read(npe,IX_NPEDL_REG_OFFSET_FIFO);
+		j++;
+	}
+	if ((recv[0] != send[0]) || (recv[1] != send[1])) {
+		if (send[0] || send[1]) {
+			/* all CMDs return the complete message as answer,
+			 * only GETSTATUS returns the ImageID of the NPE
+			 */
+			printk("Unexpected answer: "
+				"Send %08x:%08x Ret %08x:%08x\n",
+				send[0], send[1], recv[0], recv[1]);
+		}
+	}
+	return 0;
+}
+
+#define CMD  0
+#define PORT 1
+#define MAC  2
+
+#define IX_ETHNPE_NPE_GETSTATUS			0x00
+#define IX_ETHNPE_EDB_SETPORTADDRESS            0x01
+#define IX_ETHNPE_GETSTATS			0x04
+#define IX_ETHNPE_RESETSTATS			0x05
+#define IX_ETHNPE_FW_SETFIREWALLMODE            0x0E
+#define IX_ETHNPE_VLAN_SETRXQOSENTRY            0x0B
+#define IX_ETHNPE_SETLOOPBACK_MODE		0x12
+
+#define logical_id(mp) (((mp)->npe_id << 4) | ((mp)->port_id & 0xf))
+
+int npe_mh_status(struct npe_info *npe)
+{
+	struct npe_mh_msg msg;
+
+	memset(&msg, 0, sizeof(msg));
+	msg.u.byte[CMD] = IX_ETHNPE_NPE_GETSTATUS;
+	return send_message(npe, &msg);
+}
+
+int npe_mh_setportaddr(struct npe_info *npe, struct mac_plat_info *mp,
+		u8 *macaddr)
+{
+	struct npe_mh_msg msg;
+
+	msg.u.byte[CMD] = IX_ETHNPE_EDB_SETPORTADDRESS;
+	msg.u.byte[PORT] = mp->eth_id;
+	memcpy(msg.u.byte + MAC, macaddr, 6);
+
+	return send_message(npe, &msg);
+}
+
+int npe_mh_disable_firewall(struct npe_info *npe, struct mac_plat_info *mp)
+{
+	struct npe_mh_msg msg;
+
+	memset(&msg, 0, sizeof(msg));
+	msg.u.byte[CMD] = IX_ETHNPE_FW_SETFIREWALLMODE;
+	msg.u.byte[PORT] = logical_id(mp);
+
+	return send_message(npe, &msg);
+}
+
+int npe_mh_npe_loopback_mode(struct npe_info *npe, struct mac_plat_info *mp,
+		int enable)
+{
+	struct npe_mh_msg msg;
+
+	memset(&msg, 0, sizeof(msg));
+	msg.u.byte[CMD] = IX_ETHNPE_SETLOOPBACK_MODE;
+	msg.u.byte[PORT] = logical_id(mp);
+	msg.u.byte[3] = enable ? 1 : 0;
+
+	return send_message(npe, &msg);
+}
+
+int npe_mh_set_rxqid(struct npe_info *npe, struct mac_plat_info *mp, int qid)
+{
+	struct npe_mh_msg msg;
+	int i, ret;
+
+	memset(&msg, 0, sizeof(msg));
+	msg.u.byte[CMD] = IX_ETHNPE_VLAN_SETRXQOSENTRY;
+	msg.u.byte[PORT] = logical_id(mp);
+	msg.u.byte[5] = qid | 0x80;
+	msg.u.byte[7] = qid<<4;
+	for(i=0; i<8; i++) {
+		msg.u.byte[3] = i;
+		if ((ret = send_message(npe, &msg)))
+			return ret;
+	}
+	return 0;
+}
+
+int npe_mh_get_stats(struct npe_info *npe, struct mac_plat_info *mp, u32 phys,
+		int reset)
+{
+	struct npe_mh_msg msg;
+	memset(&msg, 0, sizeof(msg));
+	msg.u.byte[CMD] = reset ? IX_ETHNPE_RESETSTATS : IX_ETHNPE_GETSTATS;
+	msg.u.byte[PORT] = logical_id(mp);
+	msg.u.data[1] = cpu_to_npe32(cpu_to_be32(phys));
+
+	return send_message(npe, &msg);
+}
+
+
+EXPORT_SYMBOL(npe_mh_status);
+EXPORT_SYMBOL(npe_mh_setportaddr);
+EXPORT_SYMBOL(npe_mh_disable_firewall);
+EXPORT_SYMBOL(npe_mh_set_rxqid);
+EXPORT_SYMBOL(npe_mh_npe_loopback_mode);
+EXPORT_SYMBOL(npe_mh_get_stats);
Index: linux-2.6.21-rc1-arm/drivers/net/ixp4xx/phy.c
===================================================================
--- /dev/null	1970-01-01 00:00:00.000000000 +0000
+++ linux-2.6.21-rc1-arm/drivers/net/ixp4xx/phy.c	2007-02-21 02:24:35.000000000 -0800
@@ -0,0 +1,113 @@
+/*
+ * phy.c - MDIO functions and mii initialisation
+ *
+ * Copyright (C) 2006 Christian Hohnstaedt <chohnstaedt@innominate.com>
+ *
+ * This file is released under the GPLv2
+ */
+
+
+#include <linux/mutex.h>
+#include "mac.h"
+
+#define MAX_PHYS (1<<5)
+
+/*
+ * We must always use the same MAC for acessing the MDIO
+ * We may not use each MAC for its PHY :-(
+ */
+
+static struct net_device *phy_dev = NULL;
+static struct mutex mtx;
+
+/* here we remember if the PHY is alive, to avoid log dumping */
+static int phy_works[MAX_PHYS];
+
+int mdio_read_register(struct net_device *dev, int phy_addr, int phy_reg)
+{
+	struct mac_info *mac;
+	u32 cmd, reg;
+	int cnt = 0;
+
+	if (!phy_dev)
+		return 0;
+
+	mac = netdev_priv(phy_dev);
+	cmd = mdio_cmd(phy_addr, phy_reg);
+	mutex_lock_interruptible(&mtx);
+	mac_mdio_cmd_write(mac, cmd);
+	while((cmd = mac_mdio_cmd_read(mac)) & MII_GO) {
+		if (++cnt >= 100) {
+			printk("%s: PHY[%d] access failed\n",
+				dev->name, phy_addr);
+			break;
+		}
+		schedule();
+	}
+	reg = mac_mdio_status_read(mac);
+	mutex_unlock(&mtx);
+	if (reg & MII_READ_FAIL) {
+		if (phy_works[phy_addr]) {
+			printk("%s: PHY[%d] unresponsive\n",
+					dev->name, phy_addr);
+		}
+		reg = 0;
+		phy_works[phy_addr] = 0;
+	} else {
+		if ( !phy_works[phy_addr]) {
+			printk("%s: PHY[%d] responsive again\n",
+				dev->name, phy_addr);
+		}
+		phy_works[phy_addr] = 1;
+	}
+	return reg & 0xffff;
+}
+
+void
+mdio_write_register(struct net_device *dev, int phy_addr, int phy_reg, int val)
+{
+	struct mac_info *mac;
+	u32 cmd;
+	int cnt=0;
+
+	if (!phy_dev)
+		return;
+
+	mac = netdev_priv(phy_dev);
+	cmd = mdio_cmd(phy_addr, phy_reg) | MII_WRITE | val;
+
+	mutex_lock_interruptible(&mtx);
+	mac_mdio_cmd_write(mac, cmd);
+	while((cmd = mac_mdio_cmd_read(mac)) & MII_GO) {
+		if (++cnt >= 100) {
+			printk("%s: PHY[%d] access failed\n",
+					dev->name, phy_addr);
+			break;
+		}
+		schedule();
+	}
+	mutex_unlock(&mtx);
+}
+
+void init_mdio(struct net_device *dev, int phy_id)
+{
+	struct mac_info *mac = netdev_priv(dev);
+	int i;
+
+	/* All phy operations should use the same MAC
+	 * (my experience)
+	 */
+	if (mac->plat->eth_id == 0) {
+		mutex_init(&mtx);
+		phy_dev = dev;
+		for (i=0; i<MAX_PHYS; i++)
+			phy_works[i] = 1;
+	}
+	mac->mii.dev = dev;
+	mac->mii.phy_id = phy_id;
+	mac->mii.phy_id_mask = MAX_PHYS - 1;
+	mac->mii.reg_num_mask = 0x1f;
+	mac->mii.mdio_read = mdio_read_register;
+	mac->mii.mdio_write = mdio_write_register;
+}
+
Index: linux-2.6.21-rc1-arm/drivers/net/ixp4xx/ucode_dl.c
===================================================================
--- /dev/null	1970-01-01 00:00:00.000000000 +0000
+++ linux-2.6.21-rc1-arm/drivers/net/ixp4xx/ucode_dl.c	2007-02-21 02:24:35.000000000 -0800
@@ -0,0 +1,479 @@
+/*
+ * ucode_dl.c - provide an NPE device and a char-dev for microcode download
+ *
+ * Copyright (C) 2006 Christian Hohnstaedt <chohnstaedt@innominate.com>
+ *
+ * This file is released under the GPLv2
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/miscdevice.h>
+#include <linux/platform_device.h>
+#include <linux/fs.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/firmware.h>
+#include <linux/dma-mapping.h>
+#include <linux/byteorder/swab.h>
+#include <asm/uaccess.h>
+#include <asm/io.h>
+
+#include <linux/ixp_npe.h>
+
+#define IXNPE_VERSION "IXP4XX NPE driver Version 0.3.0"
+
+#define DL_MAGIC 0xfeedf00d
+#define DL_MAGIC_SWAP 0x0df0edfe
+
+#define EOF_BLOCK 0xf
+#define IMG_SIZE(image) (((image)->size * sizeof(u32)) + \
+		sizeof(struct dl_image))
+
+#define BT_INSTR 0
+#define BT_DATA 1
+
+enum blk_type {
+	instruction,
+	data,
+};
+
+struct dl_block {
+	u32 type;
+	u32 offset;
+};
+
+struct dl_image {
+	u32 magic;
+	u32 id;
+	u32 size;
+	union {
+		u32 data[0];
+		struct dl_block block[0];
+	} u;
+};
+
+struct dl_codeblock {
+	u32 npe_addr;
+	u32 size;
+	u32 data[0];
+};
+
+static struct platform_driver ixp4xx_npe_driver;
+
+static int match_by_npeid(struct device *dev, void *id)
+{
+	struct npe_info *npe = dev_get_drvdata(dev);
+	if (!npe->plat)
+		return 0;
+	return (npe->plat->id == *(int*)id);
+}
+
+struct device *get_npe_by_id(int id)
+{
+	struct device *dev = driver_find_device(&ixp4xx_npe_driver.driver,
+			NULL, &id, match_by_npeid);
+	if (dev) {
+		struct npe_info *npe = dev_get_drvdata(dev);
+		if (!try_module_get(THIS_MODULE)) {
+			 put_device(dev);
+			 return NULL;
+		}
+		npe->usage++;
+	}
+	return dev;
+}
+
+void return_npe_dev(struct device *dev)
+{
+	struct npe_info *npe = dev_get_drvdata(dev);
+	put_device(dev);
+	module_put(THIS_MODULE);
+	npe->usage--;
+}
+
+static int
+download_block(struct npe_info *npe, struct dl_codeblock *cb, unsigned type)
+{
+	int i;
+	int cmd;
+
+	switch (type) {
+	case BT_DATA:
+		cmd = IX_NPEDL_EXCTL_CMD_WR_DATA_MEM;
+		if (cb->npe_addr + cb->size > npe->plat->data_size) {
+			printk(KERN_INFO "Data size too large: %d+%d > %d\n",
+				cb->npe_addr, cb->size, npe->plat->data_size);
+			return -EIO;
+		}
+		break;
+	case BT_INSTR:
+		cmd = IX_NPEDL_EXCTL_CMD_WR_INS_MEM;
+		if (cb->npe_addr + cb->size > npe->plat->inst_size) {
+			printk(KERN_INFO "Instr size too large: %d+%d > %d\n",
+				cb->npe_addr, cb->size, npe->plat->inst_size);
+			return -EIO;
+		}
+		break;
+	default:
+		printk(KERN_INFO "Unknown CMD: %d\n", type);
+		return -EIO;
+	}
+
+	for (i=0; i < cb->size; i++) {
+		npe_write_cmd(npe, cb->npe_addr + i, cb->data[i], cmd);
+	}
+
+	return 0;
+}
+
+static int store_npe_image(struct dl_image *image, struct device *dev)
+{
+	struct dl_block *blk;
+	struct dl_codeblock *cb;
+	struct npe_info *npe;
+	int ret=0;
+
+	if (!dev) {
+		dev = get_npe_by_id( (image->id >> 24) & 0xf);
+		return_npe_dev(dev);
+	}
+	if (!dev)
+		return -ENODEV;
+
+	npe = dev_get_drvdata(dev);
+	if (npe->loaded && (npe->usage > 0)) {
+		printk(KERN_INFO "Cowardly refusing to reload an Image "
+			"into the used and running %s\n", npe->plat->name);
+		return 0; /* indicate success anyway... */
+	}
+	if (!cpu_is_ixp46x() && ((image->id >> 28) & 0xf)) {
+		printk(KERN_INFO "IXP46x NPE image ignored on IXP42x\n");
+		return -EIO;
+	}
+
+	npe_stop(npe);
+	npe_reset(npe);
+
+	for (blk = image->u.block; blk->type != EOF_BLOCK; blk++) {
+		if (blk->offset > image->size) {
+			printk(KERN_INFO "Block offset out of range\n");
+			return -EIO;
+		}
+		cb = (struct dl_codeblock*)&image->u.data[blk->offset];
+		if (blk->offset + cb->size + 2 > image->size) {
+			printk(KERN_INFO "Codeblock size out of range\n");
+			return -EIO;
+		}
+		if ((ret = download_block(npe, cb, blk->type)))
+			return ret;
+	}
+	*(u32*)npe->img_info = cpu_to_be32(image->id);
+	npe_start(npe);
+
+	printk(KERN_INFO "Image loaded to %s Func:%x, Rel: %x:%x, Status: %x\n",
+			npe->plat->name, npe->img_info[1], npe->img_info[2],
+			npe->img_info[3], npe_status(npe));
+	if (npe_mh_status(npe)) {
+		printk(KERN_ERR "%s not responding\n", npe->plat->name);
+	}
+	npe->loaded = 1;
+	return 0;
+}
+
+static int ucode_open(struct inode *inode, struct file *file)
+{
+	file->private_data = kmalloc(sizeof(struct dl_image), GFP_KERNEL);
+	if (!file->private_data)
+		return -ENOMEM;
+	return 0;
+}
+
+static int ucode_close(struct inode *inode, struct file *file)
+{
+	kfree(file->private_data);
+	return 0;
+}
+
+static ssize_t ucode_write(struct file *file, const char __user *buf,
+		size_t count, loff_t *ppos)
+{
+	union {
+		char *data;
+		struct dl_image *image;
+	} u;
+	const char __user *cbuf = buf;
+
+	u.data = file->private_data;
+
+	while (count) {
+		int len;
+		if (*ppos < sizeof(struct dl_image)) {
+			len = sizeof(struct dl_image) - *ppos;
+			len = len > count ? count : len;
+			if (copy_from_user(u.data + *ppos, cbuf, len))
+				return -EFAULT;
+			count -= len;
+			*ppos += len;
+			cbuf += len;
+			continue;
+		} else if (*ppos == sizeof(struct dl_image)) {
+			void *data;
+			if (u.image->magic == DL_MAGIC_SWAP) {
+				printk(KERN_INFO "swapped image found\n");
+				u.image->id = swab32(u.image->id);
+				u.image->size = swab32(u.image->size);
+			} else if (u.image->magic != DL_MAGIC) {
+				printk(KERN_INFO "Bad magic:%x\n",
+						u.image->magic);
+				return -EFAULT;
+			}
+			len = IMG_SIZE(u.image);
+			data = kmalloc(len, GFP_KERNEL);
+			if (!data)
+				return -ENOMEM;
+			memcpy(data, u.data, *ppos);
+			kfree(u.data);
+			u.data = (char*)data;
+			file->private_data = data;
+		}
+		len = IMG_SIZE(u.image) - *ppos;
+		len = len > count ? count : len;
+		if (copy_from_user(u.data + *ppos, cbuf, len))
+			return -EFAULT;
+		count -= len;
+		*ppos += len;
+		cbuf += len;
+		if (*ppos == IMG_SIZE(u.image)) {
+			int ret, i;
+			*ppos = 0;
+			if (u.image->magic == DL_MAGIC_SWAP) {
+				for (i=0; i<u.image->size; i++) {
+					u.image->u.data[i] =
+						swab32(u.image->u.data[i]);
+				}
+				u.image->magic = swab32(u.image->magic);
+			}
+			ret = store_npe_image(u.image, NULL);
+			if (ret) {
+				printk(KERN_INFO "Error in NPE image: %x\n",
+					u.image->id);
+				return ret;
+			}
+		}
+	}
+	return (cbuf-buf);
+}
+
+static void npe_firmware_probe(struct device *dev)
+{
+#if (defined(CONFIG_FW_LOADER) || defined(CONFIG_FW_LOADER_MODULE)) \
+	&& defined(MODULE)
+	const struct firmware *fw_entry;
+	struct npe_info *npe = dev_get_drvdata(dev);
+	struct dl_image *image;
+	int ret = -1, i;
+
+	if (request_firmware(&fw_entry, npe->plat->name, dev) != 0) {
+		return;
+	}
+	image = (struct dl_image*)fw_entry->data;
+	/* Sanity checks */
+	if (fw_entry->size < sizeof(struct dl_image)) {
+		printk(KERN_ERR "Firmware error: too small\n");
+		goto out;
+	}
+	if (image->magic == DL_MAGIC_SWAP) {
+		printk(KERN_INFO "swapped image found\n");
+		image->id = swab32(image->id);
+		image->size = swab32(image->size);
+	} else if (image->magic != DL_MAGIC) {
+		printk(KERN_ERR "Bad magic:%x\n", image->magic);
+		goto out;
+	}
+	if (IMG_SIZE(image) != fw_entry->size) {
+		printk(KERN_ERR "Firmware error: bad size\n");
+		goto out;
+	}
+	if (((image->id >> 24) & 0xf) != npe->plat->id) {
+		printk(KERN_ERR "NPE id missmatch\n");
+		goto out;
+	}
+	if (image->magic == DL_MAGIC_SWAP) {
+		for (i=0; i<image->size; i++) {
+			image->u.data[i] = swab32(image->u.data[i]);
+		}
+		image->magic = swab32(image->magic);
+	}
+
+	ret = store_npe_image(image, dev);
+out:
+	if (ret) {
+		printk(KERN_ERR "Error downloading Firmware for %s\n",
+				npe->plat->name);
+	}
+	release_firmware(fw_entry);
+#endif
+}
+
+static void disable_npe_irq(struct npe_info *npe)
+{
+	u32 reg;
+	reg = npe_reg_read(npe, IX_NPEDL_REG_OFFSET_CTL);
+	reg &= ~(IX_NPEMH_NPE_CTL_OFE | IX_NPEMH_NPE_CTL_IFE);
+	reg |= IX_NPEMH_NPE_CTL_OFEWE | IX_NPEMH_NPE_CTL_IFEWE;
+	npe_reg_write(npe, IX_NPEDL_REG_OFFSET_CTL, reg);
+}
+
+static ssize_t show_npe_state(struct device *dev, struct device_attribute *attr,
+		char *buf)
+{
+	struct npe_info *npe = dev_get_drvdata(dev);
+
+	strcpy(buf, npe_status(npe) & IX_NPEDL_EXCTL_STATUS_RUN ?
+			"start\n" : "stop\n");
+	return strlen(buf);
+}
+
+static ssize_t set_npe_state(struct device *dev, struct device_attribute *attr,
+		const char *buf, size_t count)
+{
+	struct npe_info *npe = dev_get_drvdata(dev);
+
+	if (npe->usage) {
+		printk("%s in use: read-only\n", npe->plat->name);
+		return count;
+	}
+	if (!strncmp(buf, "start", 5)) {
+		npe_start(npe);
+	}
+	if (!strncmp(buf, "stop", 4)) {
+		npe_stop(npe);
+	}
+	if (!strncmp(buf, "reset", 5)) {
+		npe_stop(npe);
+		npe_reset(npe);
+	}
+	return count;
+}
+
+static DEVICE_ATTR(state, S_IRUGO | S_IWUSR, show_npe_state, set_npe_state);
+
+static int npe_probe(struct platform_device *pdev)
+{
+	struct resource *res;
+	struct npe_info *npe;
+	struct npe_plat_data *plat = pdev->dev.platform_data;
+	int err, size, ret=0;
+
+	if (!(res = platform_get_resource(pdev, IORESOURCE_MEM, 0)))
+		return -EIO;
+
+	if (!(npe = kzalloc(sizeof(struct npe_info), GFP_KERNEL)))
+		return -ENOMEM;
+
+	size = res->end - res->start +1;
+	npe->res = request_mem_region(res->start, size, plat->name);
+	if (!npe->res) {
+		ret = -EBUSY;
+		printk(KERN_ERR "Failed to get memregion(%x, %x)\n",
+				res->start, size);
+		goto out_free;
+	}
+
+	npe->addr = ioremap(res->start, size);
+	if (!npe->addr) {
+		ret = -ENOMEM;
+		printk(KERN_ERR "Failed to ioremap(%x, %x)\n",
+				res->start, size);
+		goto out_rel;
+	}
+
+	pdev->dev.coherent_dma_mask = DMA_32BIT_MASK;
+
+	platform_set_drvdata(pdev, npe);
+
+	err = device_create_file(&pdev->dev, &dev_attr_state);
+	if (err)
+		goto out_rel;
+
+	npe->plat = plat;
+	disable_npe_irq(npe);
+	npe->usage = 0;
+	npe_reset(npe);
+	npe_firmware_probe(&pdev->dev);
+
+	return 0;
+
+out_rel:
+	release_resource(npe->res);
+out_free:
+	kfree(npe);
+	return ret;
+}
+
+static struct file_operations ucode_dl_fops = {
+	.owner		= THIS_MODULE,
+	.write		= ucode_write,
+	.open		= ucode_open,
+	.release	= ucode_close,
+};
+
+static struct miscdevice ucode_dl_dev = {
+	.minor	= MICROCODE_MINOR,
+	.name	= "ixp4xx_ucode",
+	.fops	= &ucode_dl_fops,
+};
+
+static int npe_remove(struct platform_device *pdev)
+{
+	struct npe_info *npe = platform_get_drvdata(pdev);
+
+	device_remove_file(&pdev->dev, &dev_attr_state);
+
+	iounmap(npe->addr);
+	release_resource(npe->res);
+	kfree(npe);
+	return 0;
+}
+
+static struct platform_driver ixp4xx_npe_driver = {
+	.driver = {
+		.name	= "ixp4xx_npe",
+		.owner	= THIS_MODULE,
+	},
+	.probe	= npe_probe,
+	.remove	= npe_remove,
+};
+
+static int __init init_npedriver(void)
+{
+	int ret;
+	if ((ret = misc_register(&ucode_dl_dev))){
+		printk(KERN_ERR "Failed to register misc device %d\n",
+				MICROCODE_MINOR);
+		return ret;
+	}
+	if ((ret = platform_driver_register(&ixp4xx_npe_driver)))
+		misc_deregister(&ucode_dl_dev);
+	else
+		printk(KERN_INFO IXNPE_VERSION " initialized\n");
+
+	return ret;
+
+}
+
+static void __exit finish_npedriver(void)
+{
+	misc_deregister(&ucode_dl_dev);
+	platform_driver_unregister(&ixp4xx_npe_driver);
+}
+
+module_init(init_npedriver);
+module_exit(finish_npedriver);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Christian Hohnstaedt <chohnstaedt@innominate.com>");
+
+EXPORT_SYMBOL(get_npe_by_id);
+EXPORT_SYMBOL(return_npe_dev);
Index: linux-2.6.21-rc1-arm/include/asm-arm/arch-ixp4xx/ixp4xx-regs.h
===================================================================
--- linux-2.6.21-rc1-arm.orig/include/asm-arm/arch-ixp4xx/ixp4xx-regs.h	2007-02-21 02:24:18.000000000 -0800
+++ linux-2.6.21-rc1-arm/include/asm-arm/arch-ixp4xx/ixp4xx-regs.h	2007-02-21 02:24:35.000000000 -0800
@@ -22,6 +22,8 @@
 #ifndef _ASM_ARM_IXP4XX_H_
 #define _ASM_ARM_IXP4XX_H_
 
+#include "npe_regs.h"
+
 /*
  * IXP4xx Linux Memory Map:
  *
@@ -44,6 +46,12 @@
  */
 
 /*
+ * PCI Memory Space
+ */
+#define IXP4XX_PCIMEM_BASE_PHYS		(0x48000000)
+#define IXP4XX_PCIMEM_REGION_SIZE	(0x04000000)
+#define IXP4XX_PCIMEM_BAR_SIZE		(0x01000000)
+/*
  * Queue Manager
  */
 #define IXP4XX_QMGR_BASE_PHYS		(0x60000000)
@@ -322,7 +330,13 @@
 #define PCI_ATPDMA0_LENADDR_OFFSET  0x48
 #define PCI_ATPDMA1_AHBADDR_OFFSET  0x4C
 #define PCI_ATPDMA1_PCIADDR_OFFSET  0x50
-#define PCI_ATPDMA1_LENADDR_OFFSET	0x54
+#define PCI_ATPDMA1_LENADDR_OFFSET  0x54
+#define PCI_PTADMA0_AHBADDR_OFFSET  0x58
+#define PCI_PTADMA0_PCIADDR_OFFSET  0x5c
+#define PCI_PTADMA0_LENADDR_OFFSET  0x60
+#define PCI_PTADMA1_AHBADDR_OFFSET  0x64
+#define PCI_PTADMA1_PCIADDR_OFFSET  0x68
+#define PCI_PTADMA1_LENADDR_OFFSET  0x6c
 
 /*
  * PCI Control/Status Registers
@@ -351,6 +365,12 @@
 #define PCI_ATPDMA1_AHBADDR     IXP4XX_PCI_CSR(PCI_ATPDMA1_AHBADDR_OFFSET)
 #define PCI_ATPDMA1_PCIADDR     IXP4XX_PCI_CSR(PCI_ATPDMA1_PCIADDR_OFFSET)
 #define PCI_ATPDMA1_LENADDR     IXP4XX_PCI_CSR(PCI_ATPDMA1_LENADDR_OFFSET)
+#define PCI_PTADMA0_AHBADDR     IXP4XX_PCI_CSR(PCI_PTADMA0_AHBADDR_OFFSET)
+#define PCI_PTADMA0_PCIADDR     IXP4XX_PCI_CSR(PCI_PTADMA0_PCIADDR_OFFSET)
+#define PCI_PTADMA0_LENADDR     IXP4XX_PCI_CSR(PCI_PTADMA0_LENADDR_OFFSET)
+#define PCI_PTADMA1_AHBADDR     IXP4XX_PCI_CSR(PCI_PTADMA1_AHBADDR_OFFSET)
+#define PCI_PTADMA1_PCIADDR     IXP4XX_PCI_CSR(PCI_PTADMA1_PCIADDR_OFFSET)
+#define PCI_PTADMA1_LENADDR     IXP4XX_PCI_CSR(PCI_PTADMA1_LENADDR_OFFSET)
 
 /*
  * PCI register values and bit definitions 
@@ -607,6 +627,34 @@
 
 #define DCMD_LENGTH	0x01fff		/* length mask (max = 8K - 1) */
 
+
+/* Fuse Bits of IXP_EXP_CFG2 */
+#define IX_FUSE_RCOMP   (1 << 0)
+#define IX_FUSE_USB     (1 << 1)
+#define IX_FUSE_HASH    (1 << 2)
+#define IX_FUSE_AES     (1 << 3)
+#define IX_FUSE_DES     (1 << 4)
+#define IX_FUSE_HDLC    (1 << 5)
+#define IX_FUSE_AAL     (1 << 6)
+#define IX_FUSE_HSS     (1 << 7)
+#define IX_FUSE_UTOPIA  (1 << 8)
+#define IX_FUSE_ETH0    (1 << 9)
+#define IX_FUSE_ETH1    (1 << 10)
+#define IX_FUSE_NPEA    (1 << 11)
+#define IX_FUSE_NPEB    (1 << 12)
+#define IX_FUSE_NPEC    (1 << 13)
+#define IX_FUSE_PCI     (1 << 14)
+#define IX_FUSE_ECC     (1 << 15)
+#define IX_FUSE_UTOPIA_PHY_LIMIT  (3 << 16)
+#define IX_FUSE_USB_HOST          (1 << 18)
+#define IX_FUSE_NPEA_ETH          (1 << 19)
+#define IX_FUSE_NPEB_ETH          (1 << 20)
+#define IX_FUSE_RSA               (1 << 21)
+#define IX_FUSE_XSCALE_MAX_FREQ   (3 << 22)
+
+#define IX_FUSE_IXP46X_ONLY IX_FUSE_XSCALE_MAX_FREQ | IX_FUSE_RSA | \
+	IX_FUSE_NPEB_ETH | IX_FUSE_NPEA_ETH | IX_FUSE_USB_HOST | IX_FUSE_ECC
+
 #ifndef __ASSEMBLY__
 static inline int cpu_is_ixp46x(void)
 {
@@ -620,6 +668,15 @@
 #endif
 	return 0;
 }
+
+static inline u32 ix_fuse(void)
+{
+	unsigned int fuses = ~(*IXP4XX_EXP_CFG2);
+	if (!cpu_is_ixp46x())
+		fuses &= ~IX_FUSE_IXP46X_ONLY;
+
+	return fuses;
+}
 #endif
 
 #endif
Index: linux-2.6.21-rc1-arm/include/asm-arm/arch-ixp4xx/npe_regs.h
===================================================================
--- /dev/null	1970-01-01 00:00:00.000000000 +0000
+++ linux-2.6.21-rc1-arm/include/asm-arm/arch-ixp4xx/npe_regs.h	2007-02-21 02:24:35.000000000 -0800
@@ -0,0 +1,82 @@
+#ifndef NPE_REGS_H
+#define NPE_REGS_H
+
+/* Execution Address  */
+#define IX_NPEDL_REG_OFFSET_EXAD             0x00
+/* Execution Data */
+#define IX_NPEDL_REG_OFFSET_EXDATA           0x04
+/* Execution Control */
+#define IX_NPEDL_REG_OFFSET_EXCTL            0x08
+/* Execution Count */
+#define IX_NPEDL_REG_OFFSET_EXCT             0x0C
+/* Action Point 0 */
+#define IX_NPEDL_REG_OFFSET_AP0              0x10
+/* Action Point 1 */
+#define IX_NPEDL_REG_OFFSET_AP1              0x14
+/* Action Point 2 */
+#define IX_NPEDL_REG_OFFSET_AP2              0x18
+/* Action Point 3 */
+#define IX_NPEDL_REG_OFFSET_AP3              0x1C
+/* Watchpoint FIFO */
+#define IX_NPEDL_REG_OFFSET_WFIFO            0x20
+/* Watch Count */
+#define IX_NPEDL_REG_OFFSET_WC               0x24
+/* Profile Count */
+#define IX_NPEDL_REG_OFFSET_PROFCT           0x28
+
+/* Messaging Status */
+#define IX_NPEDL_REG_OFFSET_STAT	     0x2C
+/* Messaging Control */
+#define IX_NPEDL_REG_OFFSET_CTL	             0x30
+/* Mailbox Status */
+#define IX_NPEDL_REG_OFFSET_MBST	     0x34
+/* messaging in/out FIFO */
+#define IX_NPEDL_REG_OFFSET_FIFO	     0x38
+
+
+#define IX_NPEDL_MASK_ECS_DBG_REG_2_IF       0x00100000
+#define IX_NPEDL_MASK_ECS_DBG_REG_2_IE       0x00080000
+#define IX_NPEDL_MASK_ECS_REG_0_ACTIVE       0x80000000
+
+#define IX_NPEDL_EXCTL_CMD_NPE_STEP          0x01
+#define IX_NPEDL_EXCTL_CMD_NPE_START         0x02
+#define IX_NPEDL_EXCTL_CMD_NPE_STOP          0x03
+#define IX_NPEDL_EXCTL_CMD_NPE_CLR_PIPE      0x04
+#define IX_NPEDL_EXCTL_CMD_CLR_PROFILE_CNT   0x0C
+#define IX_NPEDL_EXCTL_CMD_RD_INS_MEM        0x10
+#define IX_NPEDL_EXCTL_CMD_WR_INS_MEM        0x11
+#define IX_NPEDL_EXCTL_CMD_RD_DATA_MEM       0x12
+#define IX_NPEDL_EXCTL_CMD_WR_DATA_MEM       0x13
+#define IX_NPEDL_EXCTL_CMD_RD_ECS_REG        0x14
+#define IX_NPEDL_EXCTL_CMD_WR_ECS_REG        0x15
+
+#define IX_NPEDL_EXCTL_STATUS_RUN            0x80000000
+#define IX_NPEDL_EXCTL_STATUS_STOP           0x40000000
+#define IX_NPEDL_EXCTL_STATUS_CLEAR          0x20000000
+
+#define IX_NPEDL_MASK_WFIFO_VALID            0x80000000
+#define IX_NPEDL_MASK_STAT_OFNE              0x00010000
+#define IX_NPEDL_MASK_STAT_IFNE              0x00080000
+
+#define IX_NPEDL_ECS_DBG_CTXT_REG_0          0x0C
+#define IX_NPEDL_ECS_PRI_1_CTXT_REG_0        0x04
+#define IX_NPEDL_ECS_PRI_2_CTXT_REG_0        0x08
+
+/* NPE control register bit definitions */
+#define IX_NPEMH_NPE_CTL_OFE   (1 << 16) /**< OutFifoEnable */
+#define IX_NPEMH_NPE_CTL_IFE   (1 << 17) /**< InFifoEnable */
+#define IX_NPEMH_NPE_CTL_OFEWE (1 << 24) /**< OutFifoEnableWriteEnable */
+#define IX_NPEMH_NPE_CTL_IFEWE (1 << 25) /**< InFifoEnableWriteEnable */
+
+/* NPE status register bit definitions */
+#define IX_NPEMH_NPE_STAT_OFNE  (1 << 16) /**< OutFifoNotEmpty */
+#define IX_NPEMH_NPE_STAT_IFNF  (1 << 17) /**< InFifoNotFull */
+#define IX_NPEMH_NPE_STAT_OFNF  (1 << 18) /**< OutFifoNotFull */
+#define IX_NPEMH_NPE_STAT_IFNE  (1 << 19) /**< InFifoNotEmpty */
+#define IX_NPEMH_NPE_STAT_MBINT (1 << 20) /**< Mailbox interrupt */
+#define IX_NPEMH_NPE_STAT_IFINT (1 << 21) /**< InFifo interrupt */
+#define IX_NPEMH_NPE_STAT_OFINT (1 << 22) /**< OutFifo interrupt */
+#define IX_NPEMH_NPE_STAT_WFINT (1 << 23) /**< WatchFifo interrupt */
+
+#endif
+
Index: linux-2.6.21-rc1-arm/include/asm-arm/arch-ixp4xx/platform.h
===================================================================
--- linux-2.6.21-rc1-arm.orig/include/asm-arm/arch-ixp4xx/platform.h	2007-02-21 02:24:18.000000000 -0800
+++ linux-2.6.21-rc1-arm/include/asm-arm/arch-ixp4xx/platform.h	2007-02-21 02:24:35.000000000 -0800
@@ -86,6 +86,25 @@
 	unsigned long scl_pin;
 };
 
+struct npe_plat_data {
+	const char *name;
+	int data_size;
+	int inst_size;
+	int id;		/* Node ID */
+};
+
+struct mac_plat_info {
+	int npe_id;	/* Node ID of the NPE for this port */
+	int port_id;	/* Port ID for NPE-B @ ixp465 */
+	int eth_id;	/* Physical ID */
+	int phy_id;	/* ID of the connected PHY (PCB/platform dependent) */
+	int rxq_id;	/* Queue ID of the RX-free q */
+	int rxdoneq_id; /* where incoming packets are returned */
+	int txq_id;	/* Where to push the outgoing packets */
+	unsigned char hwaddr[6]; /* Desired hardware address */
+
+};
+
 /*
  * This structure provide a means for the board setup code
  * to give information to th pata_ixp4xx driver. It is
Index: linux-2.6.21-rc1-arm/include/linux/ixp_crypto.h
===================================================================
--- /dev/null	1970-01-01 00:00:00.000000000 +0000
+++ linux-2.6.21-rc1-arm/include/linux/ixp_crypto.h	2007-02-21 02:24:35.000000000 -0800
@@ -0,0 +1,192 @@
+
+#ifndef IX_CRYPTO_H
+#define IX_CRYPTO_H
+
+#define MAX_KEYLEN 64
+#define NPE_CTX_LEN 80
+#define AES_BLOCK128 16
+
+#define NPE_OP_HASH_GEN_ICV   0x50
+#define NPE_OP_ENC_GEN_KEY    0xc9
+
+
+#define NPE_OP_HASH_VERIFY   0x01
+#define NPE_OP_CCM_ENABLE    0x04
+#define NPE_OP_CRYPT_ENABLE  0x08
+#define NPE_OP_HASH_ENABLE   0x10
+#define NPE_OP_NOT_IN_PLACE  0x20
+#define NPE_OP_HMAC_DISABLE  0x40
+#define NPE_OP_CRYPT_ENCRYPT 0x80
+
+#define MOD_ECB     0x0000
+#define MOD_CTR     0x1000
+#define MOD_CBC_ENC 0x2000
+#define MOD_CBC_DEC 0x3000
+#define MOD_CCM_ENC 0x4000
+#define MOD_CCM_DEC 0x5000
+
+#define ALGO_AES    0x0800
+#define CIPH_DECR   0x0000
+#define CIPH_ENCR   0x0400
+
+#define MOD_DES     0x0000
+#define MOD_TDEA2   0x0100
+#define MOD_TDEA3   0x0200
+#define MOD_AES128  0x0000
+#define MOD_AES192  0x0100
+#define MOD_AES256  0x0200
+
+#define KEYLEN_128  4
+#define KEYLEN_192  6
+#define KEYLEN_256  8
+
+#define CIPHER_TYPE_NULL   0
+#define CIPHER_TYPE_DES    1
+#define CIPHER_TYPE_3DES   2
+#define CIPHER_TYPE_AES    3
+
+#define CIPHER_MODE_ECB    1
+#define CIPHER_MODE_CTR    2
+#define CIPHER_MODE_CBC    3
+#define CIPHER_MODE_CCM    4
+
+#define HASH_TYPE_NULL     0
+#define HASH_TYPE_MD5      1
+#define HASH_TYPE_SHA1     2
+#define HASH_TYPE_CBCMAC   3
+
+#define OP_REG_DONE  1
+#define OP_REGISTER  2
+#define OP_PERFORM   3
+
+#define STATE_UNREGISTERED 0
+#define STATE_REGISTERED   1
+#define STATE_UNLOADING    2
+
+struct crypt_ctl {
+#ifndef CONFIG_NPE_ADDRESS_COHERENT
+	u8 mode;    /* NPE operation */
+	u8 init_len;
+	u16 reserved;
+#else
+	u16 reserved;
+	u8 init_len;
+	u8 mode;    /* NPE operation */
+#endif
+	u8 iv[16];  /* IV for CBC mode or CTR IV for CTR mode */
+	union {
+		u32 icv;
+		u32 rev_aes;
+	} addr;
+	u32 src_buf;
+	u32 dest_buf;
+#ifndef CONFIG_NPE_ADDRESS_COHERENT
+	u16 auth_offs;  /* Authentication start offset */
+	u16 auth_len;   /* Authentication data length */
+	u16 crypt_offs; /* Cryption start offset */
+	u16 crypt_len;  /* Cryption data length */
+#else
+	u16 auth_len;   /* Authentication data length */
+	u16 auth_offs;  /* Authentication start offset */
+	u16 crypt_len;  /* Cryption data length */
+	u16 crypt_offs; /* Cryption start offset */
+#endif
+	u32 aadAddr;    /* Additional Auth Data Addr for CCM mode */
+	u32 crypto_ctx; /* NPE Crypto Param structure address */
+
+	/* Used by Host */
+	struct ix_sa_ctx *sa_ctx;
+	int oper_type;
+};
+
+struct npe_crypt_cont {
+	union {
+		struct crypt_ctl crypt;
+		u8 rev_aes_key[NPE_CTX_LEN];
+	} ctl;
+	struct npe_crypt_cont *next;
+	struct npe_crypt_cont *virt;
+	dma_addr_t phys;
+};
+
+struct ix_hash_algo {
+	char *name;
+	u32 cfgword;
+	int digest_len;
+	int aad_len;
+	unsigned char *icv;
+	int type;
+};
+
+struct ix_cipher_algo {
+	char *name;
+	u32 cfgword_enc;
+	u32 cfgword_dec;
+	int block_len;
+	int iv_len;
+	int type;
+	int mode;
+};
+
+struct ix_key {
+	u8 key[MAX_KEYLEN];
+	int len;
+};
+
+struct ix_sa_master {
+	struct device *npe_dev;
+	struct qm_queue *sendq;
+	struct qm_queue *recvq;
+	struct dma_pool *dmapool;
+	struct npe_crypt_cont *pool;
+	int pool_size;
+	rwlock_t lock;
+};
+
+struct ix_sa_dir {
+	unsigned char *npe_ctx;
+	dma_addr_t npe_ctx_phys;
+	int npe_ctx_idx;
+	u8 npe_mode;
+};
+
+struct ix_sa_ctx {
+	struct list_head list;
+	struct ix_sa_master *master;
+
+	const struct ix_hash_algo *h_algo;
+	const struct ix_cipher_algo *c_algo;
+	struct ix_key c_key;
+	struct ix_key h_key;
+
+	int digest_len;
+
+	struct ix_sa_dir encrypt;
+	struct ix_sa_dir decrypt;
+
+	struct npe_crypt_cont *rev_aes;
+	gfp_t gfp_flags;
+
+	int state;
+	void *priv;
+
+	void(*reg_cb)(struct ix_sa_ctx*, int);
+	void(*perf_cb)(struct ix_sa_ctx*, void*, int);
+	atomic_t use_cnt;
+};
+
+const struct ix_hash_algo *ix_hash_by_id(int type);
+const struct ix_cipher_algo *ix_cipher_by_id(int type, int mode);
+
+struct ix_sa_ctx *ix_sa_ctx_new(int priv_len, gfp_t flags);
+void ix_sa_ctx_free(struct ix_sa_ctx *sa_ctx);
+
+int ix_sa_crypto_perform(struct ix_sa_ctx *sa_ctx, u8 *data, void *ptr,
+		int datalen, int c_offs, int c_len, int a_offs, int a_len,
+		int hmac, char *iv, int encrypt);
+
+int ix_sa_ctx_setup_cipher_auth(struct ix_sa_ctx *sa_ctx,
+		const struct ix_cipher_algo *cipher,
+		const struct ix_hash_algo *auth, int len);
+
+#endif
Index: linux-2.6.21-rc1-arm/include/linux/ixp_npe.h
===================================================================
--- /dev/null	1970-01-01 00:00:00.000000000 +0000
+++ linux-2.6.21-rc1-arm/include/linux/ixp_npe.h	2007-02-21 02:24:35.000000000 -0800
@@ -0,0 +1,117 @@
+/*
+ * Copyright (C) 2006 Christian Hohnstaedt <chohnstaedt@innominate.com>
+ *
+ * This file is released under the GPLv2
+ */
+
+#ifndef NPE_DEVICE_H
+#define NPE_DEVICE_H
+
+#include <linux/miscdevice.h>
+#include <asm/hardware.h>
+
+#ifdef __ARMEB__
+#undef CONFIG_NPE_ADDRESS_COHERENT
+#else
+#define CONFIG_NPE_ADDRESS_COHERENT
+#endif
+
+#if defined(__ARMEB__) || defined (CONFIG_NPE_ADDRESS_COHERENT)
+#define npe_to_cpu32(x) (x)
+#define npe_to_cpu16(x) (x)
+#define cpu_to_npe32(x) (x)
+#define cpu_to_npe16(x) (x)
+#else
+#error NPE_DATA_COHERENT
+#define NPE_DATA_COHERENT
+#define npe_to_cpu32(x) be32_to_cpu(x)
+#define npe_to_cpu16(x) be16_to_cpu(x)
+#define cpu_to_npe32(x) cpu_to_be32(x)
+#define cpu_to_npe16(x) cpu_to_be16(x)
+#endif
+
+
+struct npe_info {
+	struct resource *res;
+	void __iomem *addr;
+	struct npe_plat_data *plat;
+	u8 img_info[4];
+	int usage;
+	int loaded;
+	u32 exec_count;
+	u32 ctx_reg2;
+};
+
+
+static inline void npe_reg_write(struct npe_info *npe, u32 reg, u32 val)
+{
+	*(volatile u32*)((u8*)(npe->addr) + reg) = val;
+}
+
+static inline u32 npe_reg_read(struct npe_info *npe, u32 reg)
+{
+	return *(volatile u32*)((u8*)(npe->addr) + reg);
+}
+
+static inline u32 npe_status(struct npe_info *npe)
+{
+	return npe_reg_read(npe, IX_NPEDL_REG_OFFSET_EXCTL);
+}
+
+/* ixNpeDlNpeMgrCommandIssue */
+static inline void npe_write_exctl(struct npe_info *npe, u32 cmd)
+{
+	npe_reg_write(npe, IX_NPEDL_REG_OFFSET_EXCTL, cmd);
+}
+/* ixNpeDlNpeMgrWriteCommandIssue */
+static inline void
+npe_write_cmd(struct npe_info *npe, u32 addr, u32 data, int cmd)
+{
+	npe_reg_write(npe, IX_NPEDL_REG_OFFSET_EXDATA, data);
+	npe_reg_write(npe, IX_NPEDL_REG_OFFSET_EXAD, addr);
+	npe_reg_write(npe, IX_NPEDL_REG_OFFSET_EXCTL, cmd);
+}
+/* ixNpeDlNpeMgrReadCommandIssue */
+static inline u32
+npe_read_cmd(struct npe_info *npe, u32 addr, int cmd)
+{
+	npe_reg_write(npe, IX_NPEDL_REG_OFFSET_EXAD, addr);
+	npe_reg_write(npe, IX_NPEDL_REG_OFFSET_EXCTL, cmd);
+	/* Intel reads the data twice - so do we... */
+	npe_reg_read(npe, IX_NPEDL_REG_OFFSET_EXDATA);
+	return npe_reg_read(npe, IX_NPEDL_REG_OFFSET_EXDATA);
+}
+
+/* ixNpeDlNpeMgrExecAccRegWrite */
+static inline void npe_write_ecs_reg(struct npe_info *npe, u32 addr, u32 data)
+{
+	npe_write_cmd(npe, addr, data, IX_NPEDL_EXCTL_CMD_WR_ECS_REG);
+}
+/* ixNpeDlNpeMgrExecAccRegRead */
+static inline u32 npe_read_ecs_reg(struct npe_info *npe, u32 addr)
+{
+	return npe_read_cmd(npe, addr, IX_NPEDL_EXCTL_CMD_RD_ECS_REG);
+}
+
+extern void npe_stop(struct npe_info *npe);
+extern void npe_start(struct npe_info *npe);
+extern void npe_reset(struct npe_info *npe);
+
+extern struct device *get_npe_by_id(int id);
+extern void return_npe_dev(struct device *dev);
+
+/* NPE Messages */
+extern int
+npe_mh_status(struct npe_info *npe);
+extern int
+npe_mh_setportaddr(struct npe_info *npe, struct mac_plat_info *mp, u8 *macaddr);
+extern int
+npe_mh_disable_firewall(struct npe_info *npe, struct mac_plat_info *mp);
+extern int
+npe_mh_set_rxqid(struct npe_info *npe, struct mac_plat_info *mp, int qid);
+extern int
+npe_mh_npe_loopback_mode(struct npe_info *npe, struct mac_plat_info *mp, int enable);
+extern int
+npe_mh_get_stats(struct npe_info *npe, struct mac_plat_info *mp, u32 phys, int reset);
+
+#endif
Index: linux-2.6.21-rc1-arm/include/linux/ixp_qmgr.h
===================================================================
--- /dev/null	1970-01-01 00:00:00.000000000 +0000
+++ linux-2.6.21-rc1-arm/include/linux/ixp_qmgr.h	2007-02-21 02:24:35.000000000 -0800
@@ -0,0 +1,202 @@
+/*
+ * Copyright (C) 2006 Christian Hohnstaedt <chohnstaedt@innominate.com>
+ *
+ * This file is released under the GPLv2
+ */
+
+#ifndef IX_QMGR_H
+#define IX_QMGR_H
+
+#include <linux/skbuff.h>
+#include <linux/list.h>
+#include <linux/if_ether.h>
+#include <linux/spinlock.h>
+#include <linux/platform_device.h>
+#include <linux/ixp_npe.h>
+#include <asm/atomic.h>
+
+/* All offsets are in 32bit words */
+#define QUE_LOW_STAT0    0x100 /* 4x Status of the 32 lower queues 0-31 */
+#define QUE_UO_STAT0     0x104 /* 2x Underflow/Overflow status bits*/
+#define QUE_UPP_STAT0    0x106 /* 2x Status of thew 32 upper queues 32-63 */
+#define INT0_SRC_SELREG0 0x108 /* 4x */
+#define QUE_IE_REG0      0x10c /* 2x */
+#define QUE_INT_REG0     0x10e /* 2x IRQ reg, write 1 to reset IRQ */
+
+#define IX_QMGR_QCFG_BASE	0x800
+#define IX_QMGR_QCFG_SIZE	0x40
+#define IX_QMGR_SRAM_SPACE	(IX_QMGR_QCFG_BASE + IX_QMGR_QCFG_SIZE)
+
+#define MAX_QUEUES 32 /* first, we only support the lower 32 queues */
+#define MAX_NPES    3
+
+enum {
+	Q_IRQ_ID_E = 0,  /* Queue Empty due to last read  */
+	Q_IRQ_ID_NE,     /* Queue Nearly Empty due to last read */
+	Q_IRQ_ID_NF,     /* Queue Nearly Full due to last write */
+	Q_IRQ_ID_F,      /* Queue Full due to last write  */
+	Q_IRQ_ID_NOT_E,  /* Queue Not Empty due to last write */
+	Q_IRQ_ID_NOT_NE, /* Queue Not Nearly Empty due to last write */
+	Q_IRQ_ID_NOT_NF, /* Queue Not Nearly Full due to last read */
+	Q_IRQ_ID_NOT_F   /* Queue Not Full due to last read */
+};
+
+extern struct qm_queue *request_queue(int qid, int len);
+extern void release_queue(struct qm_queue *queue);
+extern int queue_set_irq_src(struct qm_queue *queue, int flag);
+extern void queue_set_watermarks(struct qm_queue *, unsigned ne, unsigned nf);
+extern int queue_len(struct qm_queue *queue);
+
+struct qm_qmgr;
+struct qm_queue;
+
+typedef void(*queue_cb)(struct qm_queue *);
+
+struct qm_queue {
+	int addr;	/* word offset from IX_QMGR_SRAM_SPACE */
+	int len;	/* size in words */
+	int id;		/* Q Id */
+	u32 __iomem *acc_reg;
+	struct device *dev;
+	atomic_t use;
+	queue_cb irq_cb;
+	void *cb_data;
+};
+
+#ifndef CONFIG_NPE_ADDRESS_COHERENT
+struct eth_ctl {
+	u32 next;
+	u16 buf_len;
+	u16 pkt_len;
+	u32 phys_addr;
+	u8 dest_id;
+	u8 src_id;
+	u16 flags;
+	u8 qos;
+	u8 padlen;
+	u16 vlan_tci;
+	u8 dest_mac[ETH_ALEN];
+	u8 src_mac[ETH_ALEN];
+};
+
+#else
+struct eth_ctl {
+	u32 next;
+	u16 pkt_len;
+	u16 buf_len;
+	u32 phys_addr;
+	u16 flags;
+	u8 src_id;
+	u8 dest_id;
+	u16 vlan_tci;
+	u8 padlen;
+	u8 qos;
+	u8 dest_mac[ETH_ALEN];
+	u8 src_mac[ETH_ALEN];
+};
+#endif
+
+struct npe_cont {
+	struct eth_ctl eth;
+	void *data;
+	struct npe_cont *next;
+	struct npe_cont *virt;
+	dma_addr_t phys;
+};
+
+struct qm_qmgr {
+	u32 __iomem *addr;
+	struct resource *res;
+	struct qm_queue *queues[MAX_QUEUES];
+	rwlock_t lock;
+	struct npe_cont *pool;
+	struct dma_pool *dmapool;
+	int irq;
+};
+
+static inline void queue_write_cfg_reg(struct qm_queue *queue, u32 val)
+{
+	struct qm_qmgr *qmgr = dev_get_drvdata(queue->dev);
+	*(qmgr->addr + IX_QMGR_QCFG_BASE + queue->id) = val;
+}
+static inline u32 queue_read_cfg_reg(struct qm_queue *queue)
+{
+	struct qm_qmgr *qmgr = dev_get_drvdata(queue->dev);
+	return *(qmgr->addr + IX_QMGR_QCFG_BASE + queue->id);
+}
+
+static inline void queue_ack_irq(struct qm_queue *queue)
+{
+	struct qm_qmgr *qmgr = dev_get_drvdata(queue->dev);
+	*(qmgr->addr + QUE_INT_REG0) = 1 << queue->id;
+}
+
+static inline void queue_enable_irq(struct qm_queue *queue)
+{
+	struct qm_qmgr *qmgr = dev_get_drvdata(queue->dev);
+	*(qmgr->addr + QUE_IE_REG0) |= 1 << queue->id;
+}
+
+static inline void queue_disable_irq(struct qm_queue *queue)
+{
+	struct qm_qmgr *qmgr = dev_get_drvdata(queue->dev);
+	*(qmgr->addr + QUE_IE_REG0) &= ~(1 << queue->id);
+}
+
+static inline void queue_put_entry(struct qm_queue *queue, u32 entry)
+{
+	*(queue->acc_reg) = npe_to_cpu32(entry);
+}
+
+static inline u32 queue_get_entry(struct qm_queue *queue)
+{
+	return cpu_to_npe32(*queue->acc_reg);
+}
+
+static inline struct npe_cont *qmgr_get_cont(struct qm_qmgr *qmgr)
+{
+	unsigned long flags;
+	struct npe_cont *cont;
+
+	if (!qmgr->pool)
+		return NULL;
+	write_lock_irqsave(&qmgr->lock, flags);
+	cont = qmgr->pool;
+	qmgr->pool = cont->next;
+	write_unlock_irqrestore(&qmgr->lock, flags);
+	return cont;
+}
+
+static inline void qmgr_return_cont(struct qm_qmgr *qmgr,struct npe_cont *cont)
+{
+	unsigned long flags;
+
+	write_lock_irqsave(&qmgr->lock, flags);
+	cont->next = qmgr->pool;
+	qmgr->pool = cont;
+	write_unlock_irqrestore(&qmgr->lock, flags);
+}
+
+static inline int queue_stat(struct qm_queue *queue)
+{
+	struct qm_qmgr *qmgr = dev_get_drvdata(queue->dev);
+	u32 reg = *(qmgr->addr + QUE_UO_STAT0 + (queue->id >> 4));
+	return (reg >> (queue->id & 0xf) << 1) & 3;
+}
+
+/* Prints the queue state, which is very, very helpfull for debugging */
+static inline void queue_state(struct qm_queue *queue)
+{
+	u32 val=0, lstat=0;
+	int offs;
+	struct qm_qmgr *qmgr = dev_get_drvdata(queue->dev);
+
+	offs = queue->id/8 + QUE_LOW_STAT0;
+	val = *(qmgr->addr + IX_QMGR_QCFG_BASE + queue->id);
+	lstat = (*(qmgr->addr + offs) >>  ((queue->id % 8)*4)) & 0x0f;
+
+	printk("Qid[%02d]: Wptr=%4x, Rptr=%4x, diff=%4x, Stat:%x\n", queue->id,
+		val&0x7f, (val>>7) &0x7f, (val - (val >> 7)) & 0x7f, lstat);
+}
+
+#endif