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openwrt-xburst/target/linux/mpc83xx/patches/001-rb600.patch
kaloz 8179e8082c add preliminary MPC83xx support 
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@18353 3c298f89-4303-0410-b956-a3cf2f4a3e73
2009-11-09 11:45:04 +00:00

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51 KiB
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--- /dev/null
+++ b/arch/powerpc/boot/dts/rb600.dts
@@ -0,0 +1,242 @@
+/*
+ * RouterBOARD 600 series Device Tree Source
+ *
+ * Copyright 2009 Michael Guntsche <mike@it-loops.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ */
+
+/dts-v1/;
+
+/ {
+ model = "RB600";
+ compatible = "MPC83xx";
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ aliases {
+ ethernet0 = &enet0;
+ ethernet1 = &enet1;
+ };
+
+ chosen {
+ linux,stdout-path = "/soc8343@e0000000/serial@4500";
+ };
+
+ cpus {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ PowerPC,8343E@0 {
+ device_type = "cpu";
+ reg = <0x0>;
+ d-cache-line-size = <0x20>;
+ i-cache-line-size = <0x20>;
+ d-cache-size = <0x8000>;
+ i-cache-size = <0x8000>;
+ timebase-frequency = <0x0000000>; // filled by the bootwrapper from the firmware blob
+ clock-frequency = <0x00000000>; // filled by the bootwrapper from the firmware blob
+ };
+ };
+
+ memory {
+ device_type = "memory";
+ reg = <0x0 0x0000000>; // filled by the bootwrapper from the firmware blob
+ };
+
+ cf@f9200000 {
+ lb-timings = <0x5dc 0x3e8 0x1194 0x5dc 0x2af8>;
+ interrupt-at-level = <0x0>;
+ interrupt-parent = <&ipic>;
+ interrupts = <0x16 0x8>;
+ lbc_extra_divider = <0x1>;
+ reg = <0xf9200000 0x200000>;
+ device_type = "rb,cf";
+ };
+
+ cf@f9000000 {
+ lb-timings = <0x5dc 0x3e8 0x1194 0x5dc 0x2af8>;
+ interrupt-at-level = <0x0>;
+ interrupt-parent = <&ipic>;
+ interrupts = <0x14 0x8>;
+ lbc_extra_divider = <0x1>;
+ reg = <0xf9000000 0x200000>;
+ device_type = "rb,cf";
+ };
+
+ flash {
+ reg = <0xff800000 0x20000>;
+ };
+
+ nnand {
+ reg = <0xf0000000 0x1000>;
+ };
+
+ nand {
+ ale = <&gpio 0x6>;
+ cle = <&gpio 0x5>;
+ nce = <&gpio 0x4>;
+ rdy = <&gpio 0x3>;
+ reg = <0xf8000000 0x1000>;
+ device_type = "rb,nand";
+ };
+
+ fancon {
+ interrupt-parent = <&ipic>;
+ interrupts = <0x17 0x8>;
+ sense = <&gpio 0x7>;
+ fan_on = <&gpio 0x9>;
+ };
+
+ pci0: pci@e0008500 {
+ device_type = "pci";
+ compatible = "fsl,mpc8349-pci";
+ reg = <0xe0008500 0x100 0xe0008300 0x8>;
+ #address-cells = <3>;
+ #size-cells = <2>;
+ #interrupt-cells = <1>;
+ ranges = <0x2000000 0x0 0x80000000 0x80000000 0x0 0x20000000 0x1000000 0x0 0x0 0xd0000000 0x0 0x4000000>;
+ bus-range = <0x0 0x0>;
+ interrupt-map = <
+ 0x5800 0x0 0x0 0x1 &ipic 0x15 0x8
+ 0x6000 0x0 0x0 0x1 &ipic 0x30 0x8
+ 0x6000 0x0 0x0 0x2 &ipic 0x11 0x8
+ 0x6800 0x0 0x0 0x1 &ipic 0x11 0x8
+ 0x6800 0x0 0x0 0x2 &ipic 0x12 0x8
+ 0x7000 0x0 0x0 0x1 &ipic 0x12 0x8
+ 0x7000 0x0 0x0 0x2 &ipic 0x13 0x8
+ 0x7800 0x0 0x0 0x1 &ipic 0x13 0x8
+ 0x7800 0x0 0x0 0x2 &ipic 0x30 0x8
+ 0x8000 0x0 0x0 0x1 &ipic 0x30 0x8
+ 0x8000 0x0 0x0 0x2 &ipic 0x12 0x8
+ 0x8000 0x0 0x0 0x3 &ipic 0x11 0x8
+ 0x8000 0x0 0x0 0x4 &ipic 0x13 0x8
+ 0xa000 0x0 0x0 0x1 &ipic 0x30 0x8
+ 0xa000 0x0 0x0 0x2 &ipic 0x11 0x8
+ 0xa000 0x0 0x0 0x3 &ipic 0x12 0x8
+ 0xa000 0x0 0x0 0x4 &ipic 0x13 0x8
+ 0xa800 0x0 0x0 0x1 &ipic 0x11 0x8
+ 0xa800 0x0 0x0 0x2 &ipic 0x12 0x8
+ 0xa800 0x0 0x0 0x3 &ipic 0x13 0x8
+ 0xa800 0x0 0x0 0x4 &ipic 0x30 0x8>;
+ interrupt-map-mask = <0xf800 0x0 0x0 0x7>;
+ interrupt-parent = <&ipic>;
+ };
+
+ soc8343@e0000000 {
+ #address-cells = <1>;
+ #size-cells = <1>;
+ device_type = "soc";
+ compatible = "simple-bus";
+ ranges = <0x0 0xe0000000 0x100000>;
+ reg = <0xe0000000 0x200>;
+ bus-frequency = <0x1>;
+
+ led {
+ user_led = <0x400 0x8>;
+ };
+
+ beeper {
+ reg = <0x500 0x100>;
+ };
+
+ gpio: gpio@0 {
+ reg = <0xc08 0x4>;
+ device-id = <0x0>;
+ compatible = "gpio";
+ device_type = "gpio";
+ };
+
+ enet0: ethernet@25000 {
+ #address-cells = <1>;
+ #size-cells = <1>;
+ cell-index = <0>;
+ phy-handle = <&phy0>;
+ tbi-handle = <&tbi0>;
+ interrupt-parent = <&ipic>;
+ interrupts = <0x23 0x8 0x24 0x8 0x25 0x8>;
+ local-mac-address = [00 00 00 00 00 00];
+ reg = <0x25000 0x1000>;
+ ranges = <0x0 0x25000 0x1000>;
+ compatible = "gianfar";
+ model = "TSEC";
+ device_type = "network";
+
+ mdio@520 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ compatible = "fsl,gianfar-tbi";
+ reg = <0x520 0x20>;
+
+ tbi0: tbi-phy@11 {
+ reg = <0x11>;
+ device_type = "tbi-phy";
+ };
+ };
+ };
+
+ enet1: ethernet@24000 {
+ #address-cells = <1>;
+ #size-cells = <1>;
+ cell-index = <1>;
+ phy-handle = <&phy1>;
+ tbi-handle = <&tbi1>;
+ interrupt-parent = <&ipic>;
+ interrupts = <0x20 0x8 0x21 0x8 0x22 0x8>;
+ local-mac-address = [00 00 00 00 00 00];
+ reg = <0x24000 0x1000>;
+ ranges = <0x0 0x24000 0x1000>;
+ compatible = "gianfar";
+ model = "TSEC";
+ device_type = "network";
+
+ mdio@520 {
+ #size-cells = <0x0>;
+ #address-cells = <0x1>;
+ reg = <0x520 0x20>;
+ compatible = "fsl,gianfar-mdio";
+
+ phy0: ethernet-phy@0 {
+ device_type = "ethernet-phy";
+ reg = <0x0>;
+ };
+
+ phy1: ethernet-phy@1 {
+ device_type = "ethernet-phy";
+ reg = <0x1>;
+ };
+
+ tbi1: tbi-phy@11 {
+ reg = <0x11>;
+ device_type = "tbi-phy";
+ };
+ };
+ };
+
+ ipic: pic@700 {
+ interrupt-controller;
+ #address-cells = <0>;
+ #interrupt-cells = <2>;
+ reg = <0x700 0x100>;
+ device_type = "ipic";
+ };
+
+ serial@4500 {
+ interrupt-parent = <&ipic>;
+ interrupts = <0x9 0x8>;
+ clock-frequency = <0xfe4f840>;
+ reg = <0x4500 0x100>;
+ compatible = "ns16550";
+ device_type = "serial";
+ };
+
+ wdt@200 {
+ reg = <0x200 0x100>;
+ compatible = "mpc83xx_wdt";
+ device_type = "watchdog";
+ };
+ };
+};
--- a/arch/powerpc/boot/Makefile
+++ b/arch/powerpc/boot/Makefile
@@ -72,7 +72,7 @@ src-plat := of.c cuboot-52xx.c cuboot-82
cuboot-pq2.c cuboot-sequoia.c treeboot-walnut.c \
cuboot-bamboo.c cuboot-mpc7448hpc2.c cuboot-taishan.c \
fixed-head.S ep88xc.c ep405.c cuboot-c2k.c \
- cuboot-katmai.c cuboot-rainier.c redboot-8xx.c ep8248e.c \
+ cuboot-katmai.c cuboot-rainier.c redboot-8xx.c ep8248e.c rb600.c \
cuboot-warp.c cuboot-85xx-cpm2.c cuboot-yosemite.c simpleboot.c \
virtex405-head.S virtex.c redboot-83xx.c cuboot-sam440ep.c \
cuboot-acadia.c cuboot-amigaone.c
@@ -229,6 +229,7 @@ image-$(CONFIG_MPC834x_ITX) += cuImage.
image-$(CONFIG_MPC834x_MDS) += cuImage.mpc834x_mds
image-$(CONFIG_MPC836x_MDS) += cuImage.mpc836x_mds
image-$(CONFIG_ASP834x) += dtbImage.asp834x-redboot
+image-$(CONFIG_RB_PPC) += dtbImage.rb600
# Board ports in arch/powerpc/platform/85xx/Kconfig
image-$(CONFIG_MPC8540_ADS) += cuImage.mpc8540ads
--- /dev/null
+++ b/arch/powerpc/boot/rb600.c
@@ -0,0 +1,80 @@
+/*
+ * The RouterBOARD platform -- for booting RB600(A) RouterBOARDs.
+ *
+ * Author: Michael Guntsche <mike@it-loops.com>
+ *
+ * Copyright (c) 2009 Michael Guntsche
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation.
+ */
+
+#include "ops.h"
+#include "types.h"
+#include "io.h"
+#include "stdio.h"
+#include <libfdt.h>
+
+BSS_STACK(4*1024);
+
+u64 memsize64;
+const void *fw_dtb;
+
+static void rb600_fixups(void)
+{
+ const u32 *reg, *timebase, *clock;
+ int node, size;
+ void *chosen;
+ const char* bootargs;
+
+ dt_fixup_memory(0, memsize64);
+
+ /* Set the MAC addresses. */
+ node = fdt_path_offset(fw_dtb, "/soc8343@e0000000/ethernet@24000");
+ reg = fdt_getprop(fw_dtb, node, "mac-address", &size);
+ dt_fixup_mac_address_by_alias("ethernet1", (const u8 *)reg);
+
+ node = fdt_path_offset(fw_dtb, "/soc8343@e0000000/ethernet@25000");
+ reg = fdt_getprop(fw_dtb, node, "mac-address", &size);
+ dt_fixup_mac_address_by_alias("ethernet0", (const u8 *)reg);
+
+ /* Find the CPU timebase and clock frequencies. */
+ node = fdt_node_offset_by_prop_value(fw_dtb, -1, "device_type", "cpu", sizeof("cpu"));
+ timebase = fdt_getprop(fw_dtb, node, "timebase-frequency", &size);
+ clock = fdt_getprop(fw_dtb, node, "clock-frequency", &size);
+ dt_fixup_cpu_clocks(*clock, *timebase, 0);
+
+ /* Fixup chosen
+ * The bootloader reads the kernelparm segment and adds the content to
+ * bootargs. This is needed to specify root and other boot flags.
+ */
+ chosen = finddevice("/chosen");
+ node = fdt_path_offset(fw_dtb, "/chosen");
+ bootargs = fdt_getprop(fw_dtb, node, "bootargs", &size);
+ setprop_str(chosen, "bootargs", bootargs);
+}
+
+void platform_init(unsigned long r3, unsigned long r4, unsigned long r5,
+ unsigned long r6, unsigned long r7)
+{
+ const u32 *reg;
+ int node, size;
+
+ fw_dtb = (const void *)r3;
+
+ /* Find the memory range. */
+ node = fdt_node_offset_by_prop_value(fw_dtb, -1, "device_type", "memory", sizeof("memory"));
+ reg = fdt_getprop(fw_dtb, node, "reg", &size);
+ memsize64 = reg[1];
+
+ /* Now we have the memory size; initialize the heap. */
+ simple_alloc_init(_end, memsize64 - (unsigned long)_end, 32, 64);
+
+ /* Prepare the device tree and find the console. */
+ fdt_init(_dtb_start);
+ serial_console_init();
+
+ /* Remaining fixups... */
+ platform_ops.fixups = rb600_fixups;
+}
--- a/arch/powerpc/boot/wrapper
+++ b/arch/powerpc/boot/wrapper
@@ -201,7 +201,7 @@ ps3)
isection=.kernel:initrd
link_address=''
;;
-ep88xc|ep405|ep8248e)
+ep88xc|ep405|ep8248e|rb600)
platformo="$object/fixed-head.o $object/$platform.o"
binary=y
;;
--- a/arch/powerpc/kernel/Makefile
+++ b/arch/powerpc/kernel/Makefile
@@ -97,9 +97,11 @@ obj-$(CONFIG_FUNCTION_GRAPH_TRACER) += f
obj-$(CONFIG_8XX_MINIMAL_FPEMU) += softemu8xx.o
+ifneq ($(CONFIG_RB_IOMAP),y)
ifneq ($(CONFIG_PPC_INDIRECT_IO),y)
obj-y += iomap.o
endif
+endif
obj-$(CONFIG_PPC64) += $(obj64-y)
--- a/arch/powerpc/platforms/83xx/Kconfig
+++ b/arch/powerpc/platforms/83xx/Kconfig
@@ -30,6 +30,15 @@ config MPC832x_RDB
help
This option enables support for the MPC8323 RDB board.
+config RB_PPC
+ bool "MikroTik RouterBOARD 600 series"
+ select DEFAULT_UIMAGE
+ select QUICC_ENGINE
+ select PPC_MPC834x
+ select RB_IOMAP
+ help
+ This option enables support for MikroTik RouterBOARD 600 series boards.
+
config MPC834x_MDS
bool "Freescale MPC834x MDS"
select DEFAULT_UIMAGE
--- a/arch/powerpc/platforms/83xx/Makefile
+++ b/arch/powerpc/platforms/83xx/Makefile
@@ -6,6 +6,7 @@ obj-$(CONFIG_SUSPEND) += suspend.o susp
obj-$(CONFIG_MCU_MPC8349EMITX) += mcu_mpc8349emitx.o
obj-$(CONFIG_MPC831x_RDB) += mpc831x_rdb.o
obj-$(CONFIG_MPC832x_RDB) += mpc832x_rdb.o
+obj-$(CONFIG_RB_PPC) += rbppc.o
obj-$(CONFIG_MPC834x_MDS) += mpc834x_mds.o
obj-$(CONFIG_MPC834x_ITX) += mpc834x_itx.o
obj-$(CONFIG_MPC836x_MDS) += mpc836x_mds.o
--- /dev/null
+++ b/arch/powerpc/platforms/83xx/rbppc.c
@@ -0,0 +1,316 @@
+/*
+ * Copyright (C) 2008-2009 Noah Fontes <nfontes@transtruct.org>
+ * Copyright (C) 2009 Michael Guntsche <mike@it-loops.com>
+ * Copyright (C) Mikrotik 2007
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ */
+
+#include <linux/delay.h>
+#include <linux/root_dev.h>
+#include <linux/initrd.h>
+#include <linux/interrupt.h>
+#include <linux/of_platform.h>
+#include <linux/of_device.h>
+#include <linux/of_platform.h>
+#include <asm/time.h>
+#include <asm/ipic.h>
+#include <asm/udbg.h>
+#include <asm/qe.h>
+#include <asm/qe_ic.h>
+#include <sysdev/fsl_soc.h>
+#include <sysdev/fsl_pci.h>
+#include "mpc83xx.h"
+
+#define SYSCTL 0x100
+#define SICRL 0x014
+
+#define GTCFR2 0x04
+#define GTMDR4 0x22
+#define GTRFR4 0x26
+#define GTCNR4 0x2e
+#define GTVER4 0x36
+#define GTPSR4 0x3e
+
+#define GTCFR_BCM 0x40
+#define GTCFR_STP4 0x20
+#define GTCFR_RST4 0x10
+#define GTCFR_STP3 0x02
+#define GTCFR_RST3 0x01
+
+#define GTMDR_ORI 0x10
+#define GTMDR_FRR 0x08
+#define GTMDR_ICLK16 0x04
+
+extern int par_io_data_set(u8 port, u8 pin, u8 val);
+extern int par_io_config_pin(u8 port, u8 pin, int dir, int open_drain,
+ int assignment, int has_irq);
+
+static unsigned timer_freq;
+static void *gtm;
+
+static int beeper_irq;
+static unsigned beeper_gpio_pin[2];
+
+irqreturn_t rbppc_timer_irq(int irq, void *ptr)
+{
+ static int toggle = 0;
+
+ par_io_data_set(beeper_gpio_pin[0], beeper_gpio_pin[1], toggle);
+ toggle = !toggle;
+
+ /* ack interrupt */
+ out_be16(gtm + GTVER4, 3);
+
+ return IRQ_HANDLED;
+}
+
+void rbppc_beep(unsigned freq)
+{
+ unsigned gtmdr;
+
+ if (freq > 5000) freq = 5000;
+
+ if (!gtm)
+ return;
+ if (!freq) {
+ out_8(gtm + GTCFR2, GTCFR_STP4 | GTCFR_STP3);
+ return;
+ }
+
+ out_8(gtm + GTCFR2, GTCFR_RST4 | GTCFR_STP3);
+ out_be16(gtm + GTPSR4, 255);
+ gtmdr = GTMDR_FRR | GTMDR_ICLK16;
+ if (beeper_irq != NO_IRQ) gtmdr |= GTMDR_ORI;
+ out_be16(gtm + GTMDR4, gtmdr);
+ out_be16(gtm + GTVER4, 3);
+
+ out_be16(gtm + GTRFR4, timer_freq / 16 / 256 / freq / 2);
+ out_be16(gtm + GTCNR4, 0);
+}
+EXPORT_SYMBOL(rbppc_beep);
+
+static void __init rbppc_setup_arch(void)
+{
+ struct device_node *np;
+
+ np = of_find_node_by_type(NULL, "cpu");
+ if (np) {
+ const unsigned *fp = of_get_property(np, "clock-frequency", NULL);
+ loops_per_jiffy = fp ? *fp / HZ : 0;
+
+ of_node_put(np);
+ }
+
+ np = of_find_node_by_name(NULL, "serial");
+ if (np) {
+ timer_freq =
+ *(unsigned *) of_get_property(np, "clock-frequency", NULL);
+ of_node_put(np);
+ }
+
+#ifdef CONFIG_PCI
+ np = of_find_node_by_type(NULL, "pci");
+ if (np) {
+ mpc83xx_add_bridge(np);
+ }
+#endif
+
+#ifdef CONFIG_QUICC_ENGINE
+ np = of_find_node_by_name(np, "par_io");
+ if (np) {
+ qe_reset();
+ par_io_init(np);
+ of_node_put(np);
+
+ np = NULL;
+ while (1) {
+ np = of_find_node_by_name(np, "ucc");
+ if (!np) break;
+
+ par_io_of_config(np);
+ }
+ }
+#endif
+
+}
+
+void __init rbppc_init_IRQ(void)
+{
+ struct device_node *np;
+
+ np = of_find_node_by_type(NULL, "ipic");
+ if (np) {
+ ipic_init(np, 0);
+ ipic_set_default_priority();
+ of_node_put(np);
+ }
+
+#ifdef CONFIG_QUICC_ENGINE
+ np = of_find_node_by_type(NULL, "qeic");
+ if (np) {
+ qe_ic_init(np, 0, qe_ic_cascade_low_ipic, qe_ic_cascade_high_ipic);
+ of_node_put(np);
+ }
+#endif
+}
+
+static int __init rbppc_probe(void)
+{
+ char *model;
+
+ model = of_get_flat_dt_prop(of_get_flat_dt_root(), "model", NULL);
+
+ if (!model)
+ return 0;
+
+ if (strcmp(model, "RB600") == 0)
+ return 1;
+
+ return 0;
+}
+
+static void __init rbppc_beeper_init(struct device_node *beeper)
+{
+ struct resource res;
+ struct device_node *gpio;
+ const unsigned *pin;
+ const unsigned *gpio_id;
+
+ if (of_address_to_resource(beeper, 0, &res)) {
+ printk(KERN_ERR "rbppc_beeper_init(%s): Beeper error: No region specified\n", beeper->full_name);
+ return;
+ }
+
+ pin = of_get_property(beeper, "gpio", NULL);
+ if (pin) {
+ gpio = of_find_node_by_phandle(pin[0]);
+
+ if (!gpio) {
+ printk(KERN_ERR "rbppc_beeper_init(%s): Beeper error: GPIO handle %x not found\n", beeper->full_name, pin[0]);
+ return;
+ }
+
+ gpio_id = of_get_property(gpio, "device-id", NULL);
+ if (!gpio_id) {
+ printk(KERN_ERR "rbppc_beeper_init(%s): Beeper error: No device-id specified in GPIO\n", beeper->full_name);
+ return;
+ }
+
+ beeper_gpio_pin[0] = *gpio_id;
+ beeper_gpio_pin[1] = pin[1];
+
+ par_io_config_pin(*gpio_id, pin[1], 1, 0, 0, 0);
+ } else {
+ void *sysctl;
+
+ sysctl = ioremap_nocache(get_immrbase() + SYSCTL, 0x100);
+ out_be32(sysctl + SICRL,
+ in_be32(sysctl + SICRL) | (1 << (31 - 19)));
+ iounmap(sysctl);
+ }
+
+ gtm = ioremap_nocache(res.start, res.end - res.start + 1);
+
+ beeper_irq = irq_of_parse_and_map(beeper, 0);
+ if (beeper_irq != NO_IRQ) {
+ int e = request_irq(beeper_irq, rbppc_timer_irq, 0, "beeper", NULL);
+ if (e) {
+ printk(KERN_ERR "rbppc_beeper_init(%s): Request of beeper irq failed!\n", beeper->full_name);
+ }
+ }
+}
+
+#define SBIT(x) (0x80000000 >> (x))
+#define DBIT(x, y) ((y) << (32 - (((x % 16) + 1) * 2)))
+
+#define SICRL_RB600(x) ((x) + (0x114 >> 2))
+#define GPIO_DIR_RB600(x) ((x) + (0xc00 >> 2))
+#define GPIO_DATA_RB600(x) ((x) + (0xc08 >> 2))
+
+static void rbppc_restart(char *cmd)
+{
+ __be32 __iomem *reg;
+
+ reg = ioremap(get_immrbase(), 0x1000);
+ local_irq_disable();
+ out_be32(SICRL_RB600(reg), in_be32(SICRL_RB600(reg)) & ~0x00800000);
+ out_be32(GPIO_DIR_RB600(reg), in_be32(GPIO_DIR_RB600(reg)) | SBIT(2));
+ out_be32(GPIO_DATA_RB600(reg), in_be32(GPIO_DATA_RB600(reg)) & ~SBIT(2));
+
+ while (1);
+}
+
+static void rbppc_halt(void)
+{
+ while (1);
+}
+
+static struct of_device_id rbppc_ids[] = {
+ { .type = "soc", },
+ { .compatible = "soc", },
+ { .compatible = "simple-bus", },
+ { .compatible = "gianfar", },
+ { },
+};
+
+static int __init rbppc_declare_of_platform_devices(void)
+{
+ struct device_node *np;
+ unsigned idx;
+
+ of_platform_bus_probe(NULL, rbppc_ids, NULL);
+
+ np = of_find_node_by_type(NULL, "mdio");
+ if (np) {
+ unsigned len;
+ unsigned *res;
+ const unsigned *eres;
+ struct device_node *ep;
+
+ ep = of_find_compatible_node(NULL, "network", "ucc_geth");
+ if (ep) {
+ eres = of_get_property(ep, "reg", &len);
+ res = (unsigned *) of_get_property(np, "reg", &len);
+ if (res && eres) {
+ res[0] = eres[0] + 0x120;
+ }
+ }
+ }
+
+ np = of_find_node_by_name(NULL, "nand");
+ if (np) {
+ of_platform_device_create(np, "nand", NULL);
+ }
+
+ idx = 0;
+ for_each_node_by_type(np, "rb,cf") {
+ char dev_name[12];
+ snprintf(dev_name, sizeof(dev_name), "cf.%u", idx);
+ of_platform_device_create(np, dev_name, NULL);
+ ++idx;
+ }
+
+ np = of_find_node_by_name(NULL, "beeper");
+ if (np) {
+ rbppc_beeper_init(np);
+ }
+
+ return 0;
+}
+device_initcall(rbppc_declare_of_platform_devices);
+
+define_machine(rb600) {
+ .name = "MikroTik RouterBOARD 600 series",
+ .probe = rbppc_probe,
+ .setup_arch = rbppc_setup_arch,
+ .init_IRQ = rbppc_init_IRQ,
+ .get_irq = ipic_get_irq,
+ .restart = rbppc_restart,
+ .halt = rbppc_halt,
+ .time_init = mpc83xx_time_init,
+ .calibrate_decr = generic_calibrate_decr,
+};
--- a/arch/powerpc/platforms/Kconfig
+++ b/arch/powerpc/platforms/Kconfig
@@ -142,6 +142,10 @@ config GENERIC_IOMAP
bool
default n
+config RB_IOMAP
+ bool
+ default y if RB_PPC
+
source "drivers/cpufreq/Kconfig"
menu "CPU Frequency drivers"
--- a/arch/powerpc/sysdev/Makefile
+++ b/arch/powerpc/sysdev/Makefile
@@ -50,3 +50,5 @@ obj-$(CONFIG_UCODE_PATCH) += micropatch.
ifeq ($(CONFIG_SUSPEND),y)
obj-$(CONFIG_6xx) += 6xx-suspend.o
endif
+
+obj-$(CONFIG_RB_IOMAP) += rb_iomap.o
--- /dev/null
+++ b/arch/powerpc/sysdev/rb_iomap.c
@@ -0,0 +1,223 @@
+#include <linux/init.h>
+#include <linux/pci.h>
+#include <linux/mm.h>
+#include <asm/io.h>
+
+#define LOCALBUS_START 0x40000000
+#define LOCALBUS_MASK 0x007fffff
+#define LOCALBUS_REGMASK 0x001fffff
+
+static void __iomem *localbus_base;
+
+static inline int is_localbus(void __iomem *addr)
+{
+ return ((unsigned) addr & ~LOCALBUS_MASK) == LOCALBUS_START;
+}
+
+static inline unsigned localbus_regoff(unsigned reg) {
+ return (reg << 16) | (((reg ^ 8) & 8) << 17);
+}
+
+static inline void __iomem *localbus_addr(void __iomem *addr)
+{
+ return localbus_base
+ + ((unsigned) addr & LOCALBUS_MASK & ~LOCALBUS_REGMASK)
+ + localbus_regoff((unsigned) addr & LOCALBUS_REGMASK);
+}
+
+unsigned int ioread8(void __iomem *addr)
+{
+ if (is_localbus(addr))
+ return in_be16(localbus_addr(addr)) >> 8;
+ return readb(addr);
+}
+EXPORT_SYMBOL(ioread8);
+
+unsigned int ioread16(void __iomem *addr)
+{
+ if (is_localbus(addr))
+ return le16_to_cpu(in_be16(localbus_addr(addr)));
+ return readw(addr);
+}
+EXPORT_SYMBOL(ioread16);
+
+unsigned int ioread16be(void __iomem *addr)
+{
+ return in_be16(addr);
+}
+EXPORT_SYMBOL(ioread16be);
+
+unsigned int ioread32(void __iomem *addr)
+{
+ return readl(addr);
+}
+EXPORT_SYMBOL(ioread32);
+
+unsigned int ioread32be(void __iomem *addr)
+{
+ return in_be32(addr);
+}
+EXPORT_SYMBOL(ioread32be);
+
+void iowrite8(u8 val, void __iomem *addr)
+{
+ if (is_localbus(addr))
+ out_be16(localbus_addr(addr), ((u16) val) << 8);
+ else
+ writeb(val, addr);
+}
+EXPORT_SYMBOL(iowrite8);
+
+void iowrite16(u16 val, void __iomem *addr)
+{
+ if (is_localbus(addr))
+ out_be16(localbus_addr(addr), cpu_to_le16(val));
+ else
+ writew(val, addr);
+}
+EXPORT_SYMBOL(iowrite16);
+
+void iowrite16be(u16 val, void __iomem *addr)
+{
+ out_be16(addr, val);
+}
+EXPORT_SYMBOL(iowrite16be);
+
+void iowrite32(u32 val, void __iomem *addr)
+{
+ writel(val, addr);
+}
+EXPORT_SYMBOL(iowrite32);
+
+void iowrite32be(u32 val, void __iomem *addr)
+{
+ out_be32(addr, val);
+}
+EXPORT_SYMBOL(iowrite32be);
+
+void ioread8_rep(void __iomem *addr, void *dst, unsigned long count)
+{
+ if (is_localbus(addr)) {
+ unsigned i;
+ void *laddr = localbus_addr(addr);
+ u8 *buf = dst;
+
+ for (i = 0; i < count; ++i) {
+ *buf++ = in_be16(laddr) >> 8;
+ }
+ } else {
+ _insb((u8 __iomem *) addr, dst, count);
+ }
+}
+EXPORT_SYMBOL(ioread8_rep);
+
+void ioread16_rep(void __iomem *addr, void *dst, unsigned long count)
+{
+ if (is_localbus(addr)) {
+ unsigned i;
+ void *laddr = localbus_addr(addr);
+ u16 *buf = dst;
+
+ for (i = 0; i < count; ++i) {
+ *buf++ = in_be16(laddr);
+ }
+ } else {
+ _insw_ns((u16 __iomem *) addr, dst, count);
+ }
+}
+EXPORT_SYMBOL(ioread16_rep);
+
+void ioread32_rep(void __iomem *addr, void *dst, unsigned long count)
+{
+ _insl_ns((u32 __iomem *) addr, dst, count);
+}
+EXPORT_SYMBOL(ioread32_rep);
+
+void iowrite8_rep(void __iomem *addr, const void *src, unsigned long count)
+{
+ if (is_localbus(addr)) {
+ unsigned i;
+ void *laddr = localbus_addr(addr);
+ const u8 *buf = src;
+
+ for (i = 0; i < count; ++i) {
+ out_be16(laddr, ((u16) *buf++) << 8);
+ }
+ } else {
+ _outsb((u8 __iomem *) addr, src, count);
+ }
+}
+EXPORT_SYMBOL(iowrite8_rep);
+
+void iowrite16_rep(void __iomem *addr, const void *src, unsigned long count)
+{
+ if (is_localbus(addr)) {
+ unsigned i;
+ void *laddr = localbus_addr(addr);
+ const u16 *buf = src;
+
+ for (i = 0; i < count; ++i) {
+ out_be16(laddr, *buf++);
+ }
+ } else {
+ _outsw_ns((u16 __iomem *) addr, src, count);
+ }
+}
+EXPORT_SYMBOL(iowrite16_rep);
+
+void iowrite32_rep(void __iomem *addr, const void *src, unsigned long count)
+{
+ _outsl_ns((u32 __iomem *) addr, src, count);
+}
+EXPORT_SYMBOL(iowrite32_rep);
+
+void __iomem *ioport_map(unsigned long port, unsigned int len)
+{
+ return (void __iomem *) (port + _IO_BASE);
+}
+EXPORT_SYMBOL(ioport_unmap);
+
+void ioport_unmap(void __iomem *addr)
+{
+ /* Nothing to do */
+}
+EXPORT_SYMBOL(ioport_map);
+
+void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long max)
+{
+ unsigned long start = pci_resource_start(dev, bar);
+ unsigned long len = pci_resource_len(dev, bar);
+ unsigned long flags = pci_resource_flags(dev, bar);
+
+ if (!len)
+ return NULL;
+ if (max && len > max)
+ len = max;
+ if (flags & IORESOURCE_IO)
+ return ioport_map(start, len);
+ if (flags & IORESOURCE_MEM)
+ return ioremap(start, len);
+ /* What? */
+ return NULL;
+}
+EXPORT_SYMBOL(pci_iomap);
+
+void pci_iounmap(struct pci_dev *dev, void __iomem *addr)
+{
+ /* Nothing to do */
+}
+EXPORT_SYMBOL(pci_iounmap);
+
+void __iomem *localbus_map(unsigned long addr, unsigned int len)
+{
+ if (!localbus_base)
+ localbus_base = ioremap(addr & ~LOCALBUS_MASK,
+ LOCALBUS_MASK + 1);
+ return (void *) (LOCALBUS_START + (addr & LOCALBUS_MASK));
+}
+EXPORT_SYMBOL(localbus_map);
+
+void localbus_unmap(void __iomem *addr)
+{
+}
+EXPORT_SYMBOL(localbus_unmap);
--- a/drivers/ata/Kconfig
+++ b/drivers/ata/Kconfig
@@ -734,5 +734,12 @@ config PATA_BF54X
If unsure, say N.
+config PATA_RB_PPC
+ tristate "MikroTik RB600 PATA support"
+ depends on RB_PPC
+ help
+ This option enables support for PATA devices on MikroTik RouterBOARD
+ 600 series boards.
+
endif # ATA_SFF
endif # ATA
--- a/drivers/ata/Makefile
+++ b/drivers/ata/Makefile
@@ -73,6 +73,7 @@ obj-$(CONFIG_PATA_OCTEON_CF) += pata_oct
obj-$(CONFIG_PATA_PLATFORM) += pata_platform.o
obj-$(CONFIG_PATA_OF_PLATFORM) += pata_of_platform.o
obj-$(CONFIG_PATA_ICSIDE) += pata_icside.o
+obj-$(CONFIG_PATA_RB_PPC) += pata_rbppc_cf.o
# Should be last but two libata driver
obj-$(CONFIG_PATA_ACPI) += pata_acpi.o
# Should be last but one libata driver
--- /dev/null
+++ b/drivers/ata/pata_rbppc_cf.c
@@ -0,0 +1,701 @@
+/*
+ * Copyright (C) 2008-2009 Noah Fontes <nfontes@transtruct.org>
+ * Copyright (C) Mikrotik 2007
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <scsi/scsi_host.h>
+#include <linux/libata.h>
+#include <linux/of_platform.h>
+#include <linux/ata_platform.h>
+
+#define DEBUG_UPM 0
+
+#define DRV_NAME "pata_rbppc_cf"
+#define DRV_VERSION "0.0.2"
+
+#define DEV2SEL_OFFSET 0x00100000
+
+#define IMMR_LBCFG_OFFSET 0x00005000
+#define IMMR_LBCFG_SIZE 0x00001000
+
+#define LOCAL_BUS_MCMR 0x00000078
+#define MxMR_OP_MASK 0x30000000
+#define MxMR_OP_NORMAL 0x00000000
+#define MxMR_OP_WRITE 0x10000000
+#define MxMR_OP_READ 0x20000000
+#define MxMR_OP_RUN 0x30000000
+#define MxMR_LUPWAIT_LOW 0x08000000
+#define MxMR_LUPWAIT_HIGH 0x00000000
+#define MxMR_LUPWAIT_ENABLE 0x00040000
+#define MxMR_RLF_MASK 0x0003c000
+#define MxMR_RLF_SHIFT 14
+#define MxMR_WLF_MASK 0x00003c00
+#define MxMR_WLF_SHIFT 10
+#define MxMR_MAD_MASK 0x0000003f
+#define LOCAL_BUS_MDR 0x00000088
+#define LOCAL_BUS_LCRR 0x000000D4
+#define LCRR_CLKDIV_MASK 0x0000000f
+
+#define LOOP_SIZE 4
+
+#define UPM_READ_SINGLE_OFFSET 0x00
+#define UPM_WRITE_SINGLE_OFFSET 0x18
+#define UPM_DATA_SIZE 0x40
+
+#define LBT_CPUIN_MIN 0
+#define LBT_CPUOUT_MIN 1
+#define LBT_CPUOUT_MAX 2
+#define LBT_EXTDEL_MIN 3
+#define LBT_EXTDEL_MAX 4
+#define LBT_SIZE 5
+
+/* UPM machine configuration bits */
+#define N_BASE 0x00f00000
+#define N_CS 0xf0000000
+#define N_CS_H1 0xc0000000
+#define N_CS_H2 0x30000000
+#define N_WE 0x0f000000
+#define N_WE_H1 0x0c000000
+#define N_WE_H2 0x03000000
+#define N_OE 0x00030000
+#define N_OE_H1 0x00020000
+#define N_OE_H2 0x00010000
+#define WAEN 0x00001000
+#define REDO_2 0x00000100
+#define REDO_3 0x00000200
+#define REDO_4 0x00000300
+#define LOOP 0x00000080
+#define NA 0x00000008
+#define UTA 0x00000004
+#define LAST 0x00000001
+
+#define REDO_VAL(mult) (REDO_2 * ((mult) - 1))
+#define REDO_MAX_MULT 4
+
+#define READ_BASE (N_BASE | N_WE)
+#define WRITE_BASE (N_BASE | N_OE)
+#define EMPTY (N_BASE | N_CS | N_OE | N_WE | LAST)
+
+#define EOF_UPM_SETTINGS 0
+#define ANOTHER_TIMING 1
+
+#define OA_CPUIN_MIN 0x01
+#define OA_CPUOUT_MAX 0x02
+#define OD_CPUOUT_MIN 0x04
+#define OA_CPUOUT_DELTA 0x06
+#define OA_EXTDEL_MAX 0x08
+#define OD_EXTDEL_MIN 0x10
+#define OA_EXTDEL_DELTA 0x18
+#define O_MIN_CYCLE_TIME 0x20
+#define O_MINUS_PREV 0x40
+#define O_HALF_CYCLE 0x80
+
+extern void __iomem *localbus_map(unsigned long addr, unsigned int len);
+extern void localbus_unmap(void __iomem *addr);
+
+struct rbppc_cf_info {
+ unsigned lbcfg_addr;
+ unsigned clk_time_ps;
+ int cur_mode;
+ u32 lb_timings[LBT_SIZE];
+};
+static struct rbppc_cf_info *rbinfo = NULL;
+
+struct upm_setting {
+ unsigned value;
+ unsigned ns[7];
+ unsigned clk_minus;
+ unsigned group_size;
+ unsigned options;
+};
+
+static const struct upm_setting cfUpmReadSingle[] = {
+ { READ_BASE | N_OE,
+ /* t1 - ADDR setup time */
+ { 70, 50, 30, 30, 25, 15, 10 }, 0, 0, (OA_CPUOUT_DELTA |
+ OA_EXTDEL_MAX) },
+ { READ_BASE | N_OE_H1,
+ { 0, 0, 0, 0, 0, 0, 0 }, 0, 0, O_HALF_CYCLE },
+ { READ_BASE,
+ /* t2 - OE0 time */
+ { 290, 290, 290, 80, 70, 65, 55 }, 0, 2, (OA_CPUOUT_MAX |
+ OA_CPUIN_MIN) },
+ { READ_BASE | WAEN,
+ { 1, 1, 1, 1, 1, 0, 0 }, 0, 0, 0 },
+ { READ_BASE | UTA,
+ { 1, 1, 1, 1, 1, 1, 1 }, 0, 0, 0 },
+ { READ_BASE | N_OE,
+ /* t9 - ADDR hold time */
+ { 20, 15, 10, 10, 10, 10, 10 }, 0, 0, (OA_CPUOUT_DELTA |
+ OD_EXTDEL_MIN) },
+ { READ_BASE | N_OE | N_CS_H2,
+ { 0, 0, 0, 0, 0, 0, 0 }, 0, 0, O_HALF_CYCLE },
+ { READ_BASE | N_OE | N_CS,
+ /* t6Z -IORD data tristate */
+ { 30, 30, 30, 30, 30, 20, 20 }, 1, 1, O_MINUS_PREV },
+ { ANOTHER_TIMING,
+ /* t2i -IORD recovery time */
+ { 0, 0, 0, 70, 25, 25, 20 }, 2, 0, 0 },
+ { ANOTHER_TIMING,
+ /* CS 0 -> 1 MAX */
+ { 0, 0, 0, 0, 0, 0, 0 }, 1, 0, (OA_CPUOUT_DELTA |
+ OA_EXTDEL_MAX) },
+ { READ_BASE | N_OE | N_CS | LAST,
+ { 1, 1, 1, 1, 1, 1, 1 }, 0, 0, 0 },
+ { EOF_UPM_SETTINGS,
+ /* min total cycle time - includes turnaround and ALE cycle */
+ { 600, 383, 240, 180, 120, 100, 80 }, 2, 0, O_MIN_CYCLE_TIME },
+};
+
+static const struct upm_setting cfUpmWriteSingle[] = {
+ { WRITE_BASE | N_WE,
+ /* t1 - ADDR setup time */
+ { 70, 50, 30, 30, 25, 15, 10 }, 0, 0, (OA_CPUOUT_DELTA |
+ OA_EXTDEL_MAX) },
+ { WRITE_BASE | N_WE_H1,
+ { 0, 0, 0, 0, 0, 0, 0 }, 0, 0, O_HALF_CYCLE },
+ { WRITE_BASE,
+ /* t2 - WE0 time */
+ { 290, 290, 290, 80, 70, 65, 55 }, 0, 1, OA_CPUOUT_DELTA },
+ { WRITE_BASE | WAEN,
+ { 1, 1, 1, 1, 1, 0, 0 }, 0, 0, 0 },
+ { WRITE_BASE | N_WE,
+ /* t9 - ADDR hold time */
+ { 20, 15, 10, 10, 10, 10, 10 }, 0, 0, (OA_CPUOUT_DELTA |
+ OD_EXTDEL_MIN) },
+ { WRITE_BASE | N_WE | N_CS_H2,
+ { 0, 0, 0, 0, 0, 0, 0 }, 0, 0, O_HALF_CYCLE },
+ { WRITE_BASE | N_WE | N_CS,
+ /* t4 - DATA hold time */
+ { 30, 20, 15, 10, 10, 10, 10 }, 0, 1, O_MINUS_PREV },
+ { ANOTHER_TIMING,
+ /* t2i -IOWR recovery time */
+ { 0, 0, 0, 70, 25, 25, 20 }, 1, 0, 0 },
+ { ANOTHER_TIMING,
+ /* CS 0 -> 1 MAX */
+ { 0, 0, 0, 0, 0, 0, 0 }, 0, 0, (OA_CPUOUT_DELTA |
+ OA_EXTDEL_MAX) },
+ { WRITE_BASE | N_WE | N_CS | UTA | LAST,
+ { 1, 1, 1, 1, 1, 1, 1 }, 0, 0, 0 },
+ /* min total cycle time - includes ALE cycle */
+ { EOF_UPM_SETTINGS,
+ { 600, 383, 240, 180, 120, 100, 80 }, 1, 0, O_MIN_CYCLE_TIME },
+};
+
+static u8 rbppc_cf_check_status(struct ata_port *ap) {
+ u8 val = ioread8(ap->ioaddr.status_addr);
+ if (val == 0xF9)
+ val = 0x7F;
+ return val;
+}
+
+static u8 rbppc_cf_check_altstatus(struct ata_port *ap) {
+ u8 val = ioread8(ap->ioaddr.altstatus_addr);
+ if (val == 0xF9)
+ val = 0x7F;
+ return val;
+}
+
+static void rbppc_cf_dummy_noret(struct ata_port *ap) { }
+static int rbppc_cf_dummy_ret0(struct ata_port *ap) { return 0; }
+
+static int ps2clk(int ps, unsigned clk_time_ps) {
+ int psMaxOver;
+ if (ps <= 0) return 0;
+
+ /* round down if <= 2% over clk border, but no more than 1/4 clk cycle */
+ psMaxOver = ps * 2 / 100;
+ if (4 * psMaxOver > clk_time_ps) {
+ psMaxOver = clk_time_ps / 4;
+ }
+ return (ps + clk_time_ps - 1 - psMaxOver) / clk_time_ps;
+}
+
+static int upm_gen_ps_table(const struct upm_setting *upm,
+ int mode, struct rbppc_cf_info *info,
+ int *psFinal) {
+ int uidx;
+ int lastUpmValIdx = 0;
+ int group_start_idx = -1;
+ int group_left_num = -1;
+ int clk_time_ps = info->clk_time_ps;
+
+ for (uidx = 0; upm[uidx].value != EOF_UPM_SETTINGS; ++uidx) {
+ const struct upm_setting *us = upm + uidx;
+ unsigned opt = us->options;
+ int ps = us->ns[mode] * 1000 - us->clk_minus * clk_time_ps;
+
+ if (opt & OA_CPUIN_MIN) ps += info->lb_timings[LBT_CPUIN_MIN];
+ if (opt & OD_CPUOUT_MIN) ps -= info->lb_timings[LBT_CPUOUT_MIN];
+ if (opt & OA_CPUOUT_MAX) ps += info->lb_timings[LBT_CPUOUT_MAX];
+ if (opt & OD_EXTDEL_MIN) ps -= info->lb_timings[LBT_EXTDEL_MIN];
+ if (opt & OA_EXTDEL_MAX) ps += info->lb_timings[LBT_EXTDEL_MAX];
+
+ if (us->value == ANOTHER_TIMING) {
+ /* use longest timing from alternatives */
+ if (psFinal[lastUpmValIdx] < ps) {
+ psFinal[lastUpmValIdx] = ps;
+ }
+ ps = 0;
+ }
+ else {
+ if (us->group_size) {
+ group_start_idx = uidx;
+ group_left_num = us->group_size;
+ }
+ else if (group_left_num > 0) {
+ /* group time is divided on all group members */
+ int clk = ps2clk(ps, clk_time_ps);
+ psFinal[group_start_idx] -= clk * clk_time_ps;
+ --group_left_num;
+ }
+ if ((opt & O_MINUS_PREV) && lastUpmValIdx > 0) {
+ int clk = ps2clk(psFinal[lastUpmValIdx],
+ clk_time_ps);
+ ps -= clk * clk_time_ps;
+ }
+ lastUpmValIdx = uidx;
+ }
+ psFinal[uidx] = ps;
+ }
+ return uidx;
+}
+
+static int free_half(int ps, int clk, int clk_time_ps) {
+ if (clk < 2) return 0;
+ return (clk * clk_time_ps - ps) * 2 >= clk_time_ps;
+}
+
+static void upm_gen_clk_table(const struct upm_setting *upm,
+ int mode, int clk_time_ps,
+ int max_uidx, const int *psFinal, int *clkFinal) {
+ int clk_cycle_time;
+ int clk_total;
+ int uidx;
+
+ /* convert picoseconds to clocks */
+ clk_total = 0;
+ for (uidx = 0; uidx < max_uidx; ++uidx) {
+ int clk = ps2clk(psFinal[uidx], clk_time_ps);
+ clkFinal[uidx] = clk;
+ clk_total += clk;
+ }
+
+ /* check possibility of half cycle usage */
+ for (uidx = 1; uidx < max_uidx - 1; ++uidx) {
+ if ((upm[uidx].options & O_HALF_CYCLE) &&
+ free_half(psFinal[uidx - 1], clkFinal[uidx - 1],
+ clk_time_ps) &&
+ free_half(psFinal[uidx + 1], clkFinal[uidx + 1],
+ clk_time_ps)) {
+ ++clkFinal[uidx];
+ --clkFinal[uidx - 1];
+ --clkFinal[uidx + 1];
+ }
+ }
+
+ if ((upm[max_uidx].options & O_MIN_CYCLE_TIME) == 0) return;
+
+ /* check cycle time, adjust timings if needed */
+ clk_cycle_time = (ps2clk(upm[max_uidx].ns[mode] * 1000, clk_time_ps) -
+ upm[max_uidx].clk_minus);
+ uidx = 0;
+ while (clk_total < clk_cycle_time) {
+ /* extend all timings in round-robin to match cycle time */
+ if (clkFinal[uidx]) {
+#if DEBUG_UPM
+ printk(KERN_INFO "extending %u by 1 clk\n", uidx);
+#endif
+ ++clkFinal[uidx];
+ ++clk_total;
+ }
+ ++uidx;
+ if (uidx == max_uidx) uidx = 0;
+ }
+}
+
+static void add_data_val(unsigned val, int *clkLeft, int maxClk,
+ unsigned *data, int *dataIdx) {
+ if (*clkLeft == 0) return;
+
+ if (maxClk == 0 && *clkLeft >= LOOP_SIZE * 2) {
+ int times;
+ int times1;
+ int times2;
+
+ times = *clkLeft / LOOP_SIZE;
+ if (times > REDO_MAX_MULT * 2) times = REDO_MAX_MULT * 2;
+ times1 = times / 2;
+ times2 = times - times1;
+
+ val |= LOOP;
+ data[*dataIdx] = val | REDO_VAL(times1);
+ ++(*dataIdx);
+ data[*dataIdx] = val | REDO_VAL(times2);
+ ++(*dataIdx);
+
+ *clkLeft -= times * LOOP_SIZE;
+ return;
+ }
+
+ if (maxClk < 1 || maxClk > REDO_MAX_MULT) maxClk = REDO_MAX_MULT;
+ if (*clkLeft < maxClk) maxClk = *clkLeft;
+
+ *clkLeft -= maxClk;
+ val |= REDO_VAL(maxClk);
+
+ data[*dataIdx] = val;
+ ++(*dataIdx);
+}
+
+static int upm_gen_final_data(const struct upm_setting *upm,
+ int max_uidx, int *clkFinal, unsigned *data) {
+ int dataIdx;
+ int uidx;
+
+ dataIdx = 0;
+ for (uidx = 0; uidx < max_uidx; ++uidx) {
+ int clk = clkFinal[uidx];
+ while (clk > 0) {
+ add_data_val(upm[uidx].value, &clk, 0,
+ data, &dataIdx);
+ }
+ }
+ return dataIdx;
+}
+
+static int conv_upm_table(const struct upm_setting *upm,
+ int mode, struct rbppc_cf_info *info,
+ unsigned *data) {
+#if DEBUG_UPM
+ int uidx;
+#endif
+ int psFinal[32];
+ int clkFinal[32];
+ int max_uidx;
+ int data_len;
+
+ max_uidx = upm_gen_ps_table(upm, mode, info, psFinal);
+
+ upm_gen_clk_table(upm, mode, info->clk_time_ps, max_uidx,
+ psFinal, clkFinal);
+
+#if DEBUG_UPM
+ /* dump out debug info */
+ for (uidx = 0; uidx < max_uidx; ++uidx) {
+ if (clkFinal[uidx]) {
+ printk(KERN_INFO "idx %d val %08x clk %d ps %d\n",
+ uidx, upm[uidx].value,
+ clkFinal[uidx], psFinal[uidx]);
+ }
+ }
+#endif
+
+ data_len = upm_gen_final_data(upm, max_uidx, clkFinal, data);
+
+#if DEBUG_UPM
+ for (uidx = 0; uidx < data_len; ++uidx) {
+ printk(KERN_INFO "cf UPM x result: idx %d val %08x\n",
+ uidx, data[uidx]);
+ }
+#endif
+ return 0;
+}
+
+static int gen_upm_data(int mode, struct rbppc_cf_info *info, unsigned *data) {
+ int i;
+
+ for (i = 0; i < UPM_DATA_SIZE; ++i) {
+ data[i] = EMPTY;
+ }
+
+ if (conv_upm_table(cfUpmReadSingle, mode, info, data + UPM_READ_SINGLE_OFFSET)) {
+ return -1;
+ }
+ if (conv_upm_table(cfUpmWriteSingle, mode, info, data + UPM_WRITE_SINGLE_OFFSET)) {
+ return -1;
+ }
+ return 0;
+}
+
+static void rbppc_cf_program_upm(void *upmMemAddr, volatile void *lbcfg_mxmr, volatile void *lbcfg_mdr, const unsigned *upmData, unsigned offset, unsigned len) {
+ unsigned i;
+ unsigned mxmr;
+
+ mxmr = in_be32(lbcfg_mxmr);
+ mxmr &= ~(MxMR_OP_MASK | MxMR_MAD_MASK);
+ mxmr |= (MxMR_OP_WRITE | offset);
+ out_be32(lbcfg_mxmr, mxmr);
+ in_be32(lbcfg_mxmr); /* flush MxMR write */
+
+ for (i = 0; i < len; ++i) {
+ int to;
+ unsigned data = upmData[i + offset];
+ out_be32(lbcfg_mdr, data);
+ in_be32(lbcfg_mdr); /* flush MDR write */
+
+ iowrite8(1, upmMemAddr); /* dummy write to any CF addr */
+
+ /* wait for dummy write to complete */
+ for (to = 10000; to >= 0; --to) {
+ mxmr = in_be32(lbcfg_mxmr);
+ if (((mxmr ^ (i + 1)) & MxMR_MAD_MASK) == 0) {
+ break;
+ }
+ if (to == 0) {
+ printk(KERN_ERR "rbppc_cf_program_upm: UPMx program error at 0x%x: Timeout\n", i);
+ }
+ }
+ }
+ mxmr &= ~(MxMR_OP_MASK | MxMR_RLF_MASK | MxMR_WLF_MASK);
+ mxmr |= (MxMR_OP_NORMAL | (LOOP_SIZE << MxMR_RLF_SHIFT) | (LOOP_SIZE << MxMR_WLF_SHIFT));
+ out_be32(lbcfg_mxmr, mxmr);
+}
+
+static int rbppc_cf_update_piomode(struct ata_port *ap, int mode) {
+ struct rbppc_cf_info *info = (struct rbppc_cf_info *)ap->host->private_data;
+ void *lbcfgBase;
+ unsigned upmData[UPM_DATA_SIZE];
+
+ if (gen_upm_data(mode, info, upmData)) {
+ return -1;
+ }
+
+ lbcfgBase = ioremap_nocache(info->lbcfg_addr, IMMR_LBCFG_SIZE);
+
+ rbppc_cf_program_upm(ap->ioaddr.cmd_addr, ((char *)lbcfgBase) + LOCAL_BUS_MCMR, ((char *)lbcfgBase) + LOCAL_BUS_MDR, upmData, 0, UPM_DATA_SIZE);
+ iounmap(lbcfgBase);
+ return 0;
+}
+
+static void rbppc_cf_set_piomode(struct ata_port *ap, struct ata_device *adev)
+{
+ struct rbppc_cf_info *info = (struct rbppc_cf_info *)ap->host->private_data;
+ int mode = adev->pio_mode - XFER_PIO_0;
+
+ DPRINTK("rbppc_cf_set_piomode: PIO %d\n", mode);
+ if (mode < 0) mode = 0;
+ if (mode > 6) mode = 6;
+
+ if (info->cur_mode < 0 || info->cur_mode > mode) {
+ if (rbppc_cf_update_piomode(ap, mode) == 0) {
+ printk(KERN_INFO "rbppc_cf_set_piomode: PIO mode changed to %d\n", mode);
+ info->cur_mode = mode;
+ }
+ }
+}
+
+static struct scsi_host_template rbppc_cf_sht = {
+ ATA_BASE_SHT(DRV_NAME),
+};
+
+static struct ata_port_operations rbppc_cf_port_ops = {
+ .inherits = &ata_bmdma_port_ops,
+
+ .sff_check_status = rbppc_cf_check_status,
+ .sff_check_altstatus = rbppc_cf_check_altstatus,
+
+ .set_piomode = rbppc_cf_set_piomode,
+
+ .port_start = rbppc_cf_dummy_ret0,
+
+ .sff_irq_clear = rbppc_cf_dummy_noret,
+};
+
+static int rbppc_cf_init_info(struct of_device *pdev, struct rbppc_cf_info *info) {
+ struct device_node *np;
+ struct resource res;
+ const u32 *u32ptr;
+ void *lbcfgBase;
+ void *lbcfg_lcrr;
+ unsigned lbc_clk_khz;
+ unsigned lbc_extra_divider = 1;
+ unsigned ccb_freq_hz;
+ unsigned lb_div;
+
+ u32ptr = of_get_property(pdev->node, "lbc_extra_divider", NULL);
+ if (u32ptr && *u32ptr) {
+ lbc_extra_divider = *u32ptr;
+#if DEBUG_UPM
+ printk(KERN_INFO "rbppc_cf_init_info: LBC extra divider %u\n",
+ lbc_extra_divider);
+#endif
+ }
+
+ np = of_find_node_by_type(NULL, "serial");
+ if (!np) {
+ printk(KERN_ERR "rbppc_cf_init_info: No serial node found\n");
+ return -1;
+ }
+ u32ptr = of_get_property(np, "clock-frequency", NULL);
+ if (u32ptr == 0 || *u32ptr == 0) {
+ printk(KERN_ERR "rbppc_cf_init_info: Serial does not have clock-frequency\n");
+ of_node_put(np);
+ return -1;
+ }
+ ccb_freq_hz = *u32ptr;
+ of_node_put(np);
+
+ np = of_find_node_by_type(NULL, "soc");
+ if (!np) {
+ printk(KERN_ERR "rbppc_cf_init_info: No soc node found\n");
+ return -1;
+ }
+ if (of_address_to_resource(np, 0, &res)) {
+ printk(KERN_ERR "rbppc_cf_init_info: soc does not have resource\n");
+ of_node_put(np);
+ return -1;
+ }
+ info->lbcfg_addr = res.start + IMMR_LBCFG_OFFSET;
+ of_node_put(np);
+
+ lbcfgBase = ioremap_nocache(info->lbcfg_addr, IMMR_LBCFG_SIZE);
+ lbcfg_lcrr = ((char*)lbcfgBase) + LOCAL_BUS_LCRR;
+ lb_div = (in_be32(lbcfg_lcrr) & LCRR_CLKDIV_MASK) * lbc_extra_divider;
+ iounmap(lbcfgBase);
+
+ lbc_clk_khz = ccb_freq_hz / (1000 * lb_div);
+ info->clk_time_ps = 1000000000 / lbc_clk_khz;
+ printk(KERN_INFO "rbppc_cf_init_info: Using Local-Bus clock %u kHz %u ps\n",
+ lbc_clk_khz, info->clk_time_ps);
+
+ u32ptr = of_get_property(pdev->node, "lb-timings", NULL);
+ if (u32ptr) {
+ memcpy(info->lb_timings, u32ptr, LBT_SIZE * sizeof(*u32ptr));
+#if DEBUG_UPM
+ printk(KERN_INFO "rbppc_cf_init_info: Got LB timings <%u %u %u %u %u>\n",
+ u32ptr[0], u32ptr[1], u32ptr[2], u32ptr[3], u32ptr[4]);
+#endif
+ }
+ info->cur_mode = -1;
+ return 0;
+}
+
+static int rbppc_cf_probe(struct of_device *pdev,
+ const struct of_device_id *match)
+{
+ struct ata_host *host;
+ struct ata_port *ap;
+ struct rbppc_cf_info *info = NULL;
+ struct resource res;
+ void *baddr;
+ const u32 *u32ptr;
+ int irq_level = 0;
+ int err = -ENOMEM;
+
+ printk(KERN_INFO "rbppc_cf_probe: MikroTik RouterBOARD 600 series Compact Flash PATA driver, version " DRV_VERSION "\n");
+
+ if (rbinfo == NULL) {
+ info = kmalloc(sizeof(*info), GFP_KERNEL);
+ if (info == NULL) {
+ printk(KERN_ERR "rbppc_cf_probe: Out of memory\n");
+ goto err_info;
+ }
+ memset(info, 0, sizeof(*info));
+
+ if (rbppc_cf_init_info(pdev, info)) {
+ goto err_info;
+ }
+ rbinfo = info;
+ }
+
+ u32ptr = of_get_property(pdev->node, "interrupt-at-level", NULL);
+ if (u32ptr) {
+ irq_level = *u32ptr;
+ printk(KERN_INFO "rbppc_cf_probe: IRQ level %u\n", irq_level);
+ }
+
+ if (of_address_to_resource(pdev->node, 0, &res)) {
+ printk(KERN_ERR "rbppc_cf_probe: No reg property found\n");
+ goto err_info;
+ }
+
+ host = ata_host_alloc(&pdev->dev, 1);
+ if (!host)
+ goto err_info;
+
+ baddr = localbus_map(res.start, res.end - res.start + 1);
+ host->iomap = baddr;
+ host->private_data = rbinfo;
+
+ ap = host->ports[0];
+ ap->ops = &rbppc_cf_port_ops;
+ ap->pio_mask = 0x7F; /* PIO modes 0-6 */
+ ap->flags = ATA_FLAG_NO_LEGACY;
+ ap->mwdma_mask = 0;
+
+ ap->ioaddr.cmd_addr = baddr;
+ ata_sff_std_ports(&ap->ioaddr);
+ ap->ioaddr.ctl_addr = ap->ioaddr.cmd_addr + 14;
+ ap->ioaddr.altstatus_addr = ap->ioaddr.ctl_addr;
+ ap->ioaddr.bmdma_addr = 0;
+
+ err = ata_host_activate(
+ host,
+ irq_of_parse_and_map(pdev->node, 0), ata_sff_interrupt,
+ irq_level ? IRQF_TRIGGER_HIGH : IRQF_TRIGGER_LOW,
+ &rbppc_cf_sht);
+ if (!err) return 0;
+
+ localbus_unmap(baddr);
+err_info:
+ if (info) {
+ kfree(info);
+ rbinfo = NULL;
+ }
+ return err;
+}
+
+static int rbppc_cf_remove(struct of_device *pdev)
+{
+ struct device *dev = &pdev->dev;
+ struct ata_host *host = dev_get_drvdata(dev);
+
+ if (host == NULL) return -1;
+
+ ata_host_detach(host);
+ return 0;
+}
+
+static struct of_device_id rbppc_cf_ids[] = {
+ { .name = "cf", },
+ { },
+};
+
+static struct of_platform_driver rbppc_cf_driver = {
+ .name = "cf",
+ .probe = rbppc_cf_probe,
+ .remove = rbppc_cf_remove,
+ .match_table = rbppc_cf_ids,
+ .driver = {
+ .name = "rbppc-cf",
+ .owner = THIS_MODULE,
+ },
+};
+
+static int __init rbppc_init(void)
+{
+ return of_register_platform_driver(&rbppc_cf_driver);
+}
+
+static void __exit rbppc_exit(void)
+{
+ of_unregister_platform_driver(&rbppc_cf_driver);
+}
+
+MODULE_AUTHOR("Mikrotikls SIA");
+MODULE_AUTHOR("Noah Fontes");
+MODULE_DESCRIPTION("MikroTik RouterBOARD 600 series Compact Flash PATA driver");
+MODULE_LICENSE("GPL");
+MODULE_VERSION(DRV_VERSION);
+
+module_init(rbppc_init);
+module_exit(rbppc_exit);
--- a/drivers/mtd/nand/Kconfig
+++ b/drivers/mtd/nand/Kconfig
@@ -380,6 +380,13 @@ config MTD_NAND_PLATFORM
devices. You will need to provide platform-specific functions
via platform_data.
+config MTD_NAND_RB_PPC
+ tristate "MikroTik RB600 NAND support"
+ depends on MTD_NAND && MTD_PARTITIONS && RB_PPC
+ help
+ This option enables support for the NAND device on MikroTik
+ RouterBOARD 600 series boards.
+
config MTD_ALAUDA
tristate "MTD driver for Olympus MAUSB-10 and Fujifilm DPC-R1"
depends on MTD_NAND && USB
--- a/drivers/mtd/nand/Makefile
+++ b/drivers/mtd/nand/Makefile
@@ -30,6 +30,7 @@ obj-$(CONFIG_MTD_NAND_BASLER_EXCITE) +=
obj-$(CONFIG_MTD_NAND_PXA3xx) += pxa3xx_nand.o
obj-$(CONFIG_MTD_NAND_TMIO) += tmio_nand.o
obj-$(CONFIG_MTD_NAND_PLATFORM) += plat_nand.o
+obj-$(CONFIG_MTD_NAND_RB_PPC) += rbppc_nand.o
obj-$(CONFIG_MTD_ALAUDA) += alauda.o
obj-$(CONFIG_MTD_NAND_PASEMI) += pasemi_nand.o
obj-$(CONFIG_MTD_NAND_ORION) += orion_nand.o
--- /dev/null
+++ b/drivers/mtd/nand/rbppc_nand.c
@@ -0,0 +1,252 @@
+/*
+ * Copyright (C) 2008-2009 Noah Fontes <nfontes@transtruct.org>
+ * Copyright (C) 2009 Michael Guntsche <mike@it-loops.com>
+ * Copyright (C) Mikrotik 2007
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ */
+
+#include <linux/init.h>
+#include <linux/mtd/nand.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/partitions.h>
+#include <linux/of_platform.h>
+#include <asm/of_platform.h>
+#include <asm/of_device.h>
+#include <linux/delay.h>
+#include <asm/io.h>
+
+#define DRV_NAME "rbppc_nand"
+#define DRV_VERSION "0.0.2"
+
+static struct mtd_info rmtd;
+static struct nand_chip rnand;
+
+struct rbppc_nand_info {
+ void *gpi;
+ void *gpo;
+ void *localbus;
+
+ unsigned gpio_rdy;
+ unsigned gpio_nce;
+ unsigned gpio_cle;
+ unsigned gpio_ale;
+ unsigned gpio_ctrls;
+};
+
+/* We must use the OOB layout from yaffs 1 if we want this to be recognized
+ * properly. Borrowed from the OpenWRT patches for the RB532.
+ *
+ * See <https://dev.openwrt.org/browser/trunk/target/linux/rb532/
+ * patches-2.6.28/025-rb532_nand_fixup.patch> for more details.
+ */
+static struct nand_ecclayout rbppc_nand_oob_16 = {
+ .eccbytes = 6,
+ .eccpos = { 8, 9, 10, 13, 14, 15 },
+ .oobavail = 9,
+ .oobfree = { { 0, 4 }, { 6, 2 }, { 11, 2 }, { 4, 1 } }
+};
+
+static struct mtd_partition rbppc_nand_partition_info[] = {
+ {
+ name: "RouterBOARD NAND Boot",
+ offset: 0,
+ size: 4 * 1024 * 1024,
+ },
+ {
+ name: "RouterBOARD NAND Main",
+ offset: MTDPART_OFS_NXTBLK,
+ size: MTDPART_SIZ_FULL,
+ },
+};
+
+static int rbppc_nand_dev_ready(struct mtd_info *mtd) {
+ struct nand_chip *chip = mtd->priv;
+ struct rbppc_nand_info *priv = chip->priv;
+
+ return in_be32(priv->gpi) & priv->gpio_rdy;
+}
+
+static void rbppc_nand_cmd_ctrl(struct mtd_info *mtd, int cmd, unsigned int ctrl) {
+ struct nand_chip *chip = mtd->priv;
+ struct rbppc_nand_info *priv = chip->priv;
+
+ if (ctrl & NAND_CTRL_CHANGE) {
+ unsigned val = in_be32(priv->gpo);
+ if (!(val & priv->gpio_nce)) {
+ /* make sure Local Bus has done NAND operations */
+ readb(priv->localbus);
+ }
+
+ if (ctrl & NAND_CLE) {
+ val |= priv->gpio_cle;
+ } else {
+ val &= ~priv->gpio_cle;
+ }
+ if (ctrl & NAND_ALE) {
+ val |= priv->gpio_ale;
+ } else {
+ val &= ~priv->gpio_ale;
+ }
+ if (!(ctrl & NAND_NCE)) {
+ val |= priv->gpio_nce;
+ } else {
+ val &= ~priv->gpio_nce;
+ }
+ out_be32(priv->gpo, val);
+
+ /* make sure GPIO output has changed */
+ val ^= in_be32(priv->gpo);
+ if (val & priv->gpio_ctrls) {
+ printk(KERN_ERR "rbppc_nand_hwcontrol: NAND GPO change failed 0x%08x\n", val);
+ }
+ }
+
+ if (cmd != NAND_CMD_NONE) writeb(cmd, chip->IO_ADDR_W);
+}
+
+static void rbppc_nand_read_buf(struct mtd_info *mtd, uint8_t *buf, int len)
+{
+ struct nand_chip *chip = mtd->priv;
+ memcpy(buf, chip->IO_ADDR_R, len);
+}
+
+static unsigned init_ok = 0;
+
+static int rbppc_nand_probe(struct of_device *pdev,
+ const struct of_device_id *match)
+{
+ struct device_node *gpio;
+ struct device_node *nnand;
+ struct resource res;
+ struct rbppc_nand_info *info;
+ void *baddr;
+ const unsigned *rdy, *nce, *cle, *ale;
+
+ printk(KERN_INFO "rbppc_nand_probe: MikroTik RouterBOARD 600 series NAND driver, version " DRV_VERSION "\n");
+
+ info = kmalloc(sizeof(*info), GFP_KERNEL);
+
+ rdy = of_get_property(pdev->node, "rdy", NULL);
+ nce = of_get_property(pdev->node, "nce", NULL);
+ cle = of_get_property(pdev->node, "cle", NULL);
+ ale = of_get_property(pdev->node, "ale", NULL);
+
+ if (!rdy || !nce || !cle || !ale) {
+ printk(KERN_ERR "rbppc_nand_probe: GPIO properties are missing\n");
+ goto err;
+ }
+ if (rdy[0] != nce[0] || rdy[0] != cle[0] || rdy[0] != ale[0]) {
+ printk(KERN_ERR "rbppc_nand_probe: Different GPIOs are not supported\n");
+ goto err;
+ }
+
+ gpio = of_find_node_by_phandle(rdy[0]);
+ if (!gpio) {
+ printk(KERN_ERR "rbppc_nand_probe: No GPIO<%x> node found\n", *rdy);
+ goto err;
+ }
+ if (of_address_to_resource(gpio, 0, &res)) {
+ printk(KERN_ERR "rbppc_nand_probe: No reg property in GPIO found\n");
+ goto err;
+ }
+ info->gpo = ioremap_nocache(res.start, res.end - res.start + 1);
+
+ if (!of_address_to_resource(gpio, 1, &res)) {
+ info->gpi = ioremap_nocache(res.start, res.end - res.start + 1);
+ } else {
+ info->gpi = info->gpo;
+ }
+ of_node_put(gpio);
+
+ info->gpio_rdy = 1 << (31 - rdy[1]);
+ info->gpio_nce = 1 << (31 - nce[1]);
+ info->gpio_cle = 1 << (31 - cle[1]);
+ info->gpio_ale = 1 << (31 - ale[1]);
+ info->gpio_ctrls = info->gpio_nce | info->gpio_cle | info->gpio_ale;
+
+ nnand = of_find_node_by_name(NULL, "nnand");
+ if (!nnand) {
+ printk("rbppc_nand_probe: No nNAND found\n");
+ goto err;
+ }
+ if (of_address_to_resource(nnand, 0, &res)) {
+ printk("rbppc_nand_probe: No reg property in nNAND found\n");
+ goto err;
+ }
+ of_node_put(nnand);
+ info->localbus = ioremap_nocache(res.start, res.end - res.start + 1);
+
+ if (of_address_to_resource(pdev->node, 0, &res)) {
+ printk("rbppc_nand_probe: No reg property found\n");
+ goto err;
+ }
+ baddr = ioremap_nocache(res.start, res.end - res.start + 1);
+
+ memset(&rnand, 0, sizeof(rnand));
+ rnand.cmd_ctrl = rbppc_nand_cmd_ctrl;
+ rnand.dev_ready = rbppc_nand_dev_ready;
+ rnand.read_buf = rbppc_nand_read_buf;
+ rnand.IO_ADDR_W = baddr;
+ rnand.IO_ADDR_R = baddr;
+ rnand.priv = info;
+
+ memset(&rmtd, 0, sizeof(rmtd));
+ rnand.ecc.mode = NAND_ECC_SOFT;
+ rnand.ecc.layout = &rbppc_nand_oob_16;
+ rnand.chip_delay = 25;
+ rnand.options |= NAND_NO_AUTOINCR;
+ rmtd.priv = &rnand;
+ rmtd.owner = THIS_MODULE;
+
+ if (nand_scan(&rmtd, 1) && nand_scan(&rmtd, 1) && nand_scan(&rmtd, 1) && nand_scan(&rmtd, 1)) {
+ printk(KERN_ERR "rbppc_nand_probe: RouterBOARD NAND device not found\n");
+ return -ENXIO;
+ }
+
+ add_mtd_partitions(&rmtd, rbppc_nand_partition_info, 2);
+ init_ok = 1;
+ return 0;
+
+err:
+ kfree(info);
+ return -1;
+}
+
+static struct of_device_id rbppc_nand_ids[] = {
+ { .name = "nand", },
+ { },
+};
+
+static struct of_platform_driver rbppc_nand_driver = {
+ .name = "nand",
+ .probe = rbppc_nand_probe,
+ .match_table = rbppc_nand_ids,
+ .driver = {
+ .name = "rbppc-nand",
+ .owner = THIS_MODULE,
+ },
+};
+
+static int __init rbppc_nand_init(void)
+{
+ return of_register_platform_driver(&rbppc_nand_driver);
+}
+
+static void __exit rbppc_nand_exit(void)
+{
+ of_unregister_platform_driver(&rbppc_nand_driver);
+}
+
+MODULE_AUTHOR("Mikrotikls SIA");
+MODULE_AUTHOR("Noah Fontes");
+MODULE_AUTHOR("Michael Guntsche");
+MODULE_DESCRIPTION("MikroTik RouterBOARD 600 series NAND driver");
+MODULE_LICENSE("GPL");
+MODULE_VERSION(DRV_VERSION);
+
+module_init(rbppc_nand_init);
+module_exit(rbppc_nand_exit);
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