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openwrt-xburst/target/linux/cns21xx/patches-2.6.36/204-cns21xx-add-gec-device.patch
juhosg 0ddbef1f62 cns21xx: add initial support for the Cavium CNS21xx SoC
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@24859 3c298f89-4303-0410-b956-a3cf2f4a3e73
2010-12-30 17:19:16 +00:00

179 lines
4.7 KiB
Diff

--- a/arch/arm/mach-cns21xx/Kconfig
+++ b/arch/arm/mach-cns21xx/Kconfig
@@ -3,6 +3,9 @@ if ARCH_CNS21XX
menu "Cavium Networks CNS21xx based machines"
endmenu
+config CNS21XX_DEV_GEC
+ def_bool n
+
config CNS21XX_DEV_USB
def_bool n
--- a/arch/arm/mach-cns21xx/Makefile
+++ b/arch/arm/mach-cns21xx/Makefile
@@ -7,6 +7,7 @@
obj-y := core.o devices.o gpio.o irq.o mm.o time.o
# devices
+obj-$(CONFIG_CNS21XX_DEV_GEC) += dev-gec.o
obj-$(CONFIG_CNS21XX_DEV_USB) += dev-usb.o
obj-$(CONFIG_CNS21XX_DEV_SPI_MASTER) += dev-spi-master.o
--- /dev/null
+++ b/arch/arm/mach-cns21xx/dev-gec.c
@@ -0,0 +1,98 @@
+/*
+ * Copyright (c) 2010 Gabor Juhos <juhosg@openwrt.org>
+ *
+ * This file 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 <linux/init.h>
+#include <linux/dma-mapping.h>
+#include <linux/platform_device.h>
+#include <linux/etherdevice.h>
+
+#include <asm/sizes.h>
+#include <mach/cns21xx.h>
+#include <mach/irqs.h>
+
+#include "dev-gec.h"
+
+static u8 cns21xx_ethaddr[ETH_ALEN];
+struct cns21xx_gec_plat_data cns21xx_gec_data;
+
+static struct resource cns21xx_gec_resources[] = {
+ {
+ .start = CNS21XX_NIC_BASE,
+ .end = CNS21XX_NIC_BASE + SZ_4K - 1,
+ .flags = IORESOURCE_MEM,
+ }, {
+ .name = CNS21XX_GEC_STATUS_IRQ_NAME,
+ .start = CNS21XX_IRQ_NIC_STATUS,
+ .end = CNS21XX_IRQ_NIC_STATUS,
+ .flags = IORESOURCE_IRQ,
+ }, {
+ .name = CNS21XX_GEC_RXRC_IRQ_NAME,
+ .start = CNS21XX_IRQ_NIC_RXRC,
+ .end = CNS21XX_IRQ_NIC_RXRC,
+ .flags = IORESOURCE_IRQ,
+ }, {
+ .name = CNS21XX_GEC_RXQF_IRQ_NAME,
+ .start = CNS21XX_IRQ_NIC_RXQF,
+ .end = CNS21XX_IRQ_NIC_RXQF,
+ .flags = IORESOURCE_IRQ,
+ }, {
+ .name = CNS21XX_GEC_TXTC_IRQ_NAME,
+ .start = CNS21XX_IRQ_NIC_TXTC,
+ .end = CNS21XX_IRQ_NIC_TXTC,
+ .flags = IORESOURCE_IRQ,
+ }, {
+ .name = CNS21XX_GEC_TXQE_IRQ_NAME,
+ .start = CNS21XX_IRQ_NIC_TXQE,
+ .end = CNS21XX_IRQ_NIC_TXQE,
+ .flags = IORESOURCE_IRQ,
+ }
+};
+
+static u64 cns21xx_gec_dmamask = DMA_BIT_MASK(32);
+static struct platform_device cns21xx_gec_device = {
+ .name = "cns21xx-gec",
+ .id = -1,
+ .resource = cns21xx_gec_resources,
+ .num_resources = ARRAY_SIZE(cns21xx_gec_resources),
+ .dev = {
+ .dma_mask = &cns21xx_gec_dmamask,
+ .coherent_dma_mask = DMA_BIT_MASK(32),
+ .platform_data = &cns21xx_gec_data,
+ },
+};
+
+static int __init cns21xx_ethaddr_setup(char *str)
+{
+ int t;
+
+ t = sscanf(str, "%02hhx:%02hhx:%02hhx:%02hhx:%02hhx:%02hhx",
+ &cns21xx_ethaddr[0], &cns21xx_ethaddr[1],
+ &cns21xx_ethaddr[2], &cns21xx_ethaddr[3],
+ &cns21xx_ethaddr[4], &cns21xx_ethaddr[5]);
+
+ if (t != ETH_ALEN)
+ pr_err("cns21xx: failed to parse mac address \"%s\"\n", str);
+
+ return 1;
+}
+
+__setup("ethaddr=", cns21xx_ethaddr_setup);
+
+__init int cns21xx_register_gec(void)
+{
+ if (cns21xx_gec_data.mac_addr == NULL)
+ cns21xx_gec_data.mac_addr = cns21xx_ethaddr;
+
+ if (!is_valid_ether_addr(cns21xx_gec_data.mac_addr)) {
+ random_ether_addr(cns21xx_gec_data.mac_addr);
+ pr_debug("cns21xx: using random MAC address \"%s\"\n",
+ cns21xx_gec_data.mac_addr);
+ }
+
+ return platform_device_register(&cns21xx_gec_device);
+}
--- /dev/null
+++ b/arch/arm/mach-cns21xx/dev-gec.h
@@ -0,0 +1,18 @@
+/*
+ * Copyright (c) 2010 Gabor Juhos <juhosg@openwrt.org>
+ *
+ * This file 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.
+ */
+
+#ifndef _CNS21XX_DEV_GEC_H
+#define _CNS21XX_DEV_GEC_H
+
+#include <mach/cns21xx_gec_platform.h>
+
+extern struct cns21xx_gec_plat_data cns21xx_gec_data;
+
+__init int cns21xx_register_gec(void);
+
+#endif /* _CNS21XX_DEV_GEC_H */
--- /dev/null
+++ b/arch/arm/mach-cns21xx/include/mach/cns21xx_gec_platform.h
@@ -0,0 +1,31 @@
+/*
+ * Copyright (c) 2010 Gabor Juhos <juhosg@openwrt.org>
+ *
+ * This file 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.
+ */
+
+#ifndef _CNS21XX_GEC_PLATFORM_H
+#define _CNS21XX_GEC_PLATFORM_H
+
+#define CNS21XX_GEC_STATUS_IRQ_NAME "status"
+#define CNS21XX_GEC_RXRC_IRQ_NAME "rxrc"
+#define CNS21XX_GEC_RXQF_IRQ_NAME "rxqf"
+#define CNS21XX_GEC_TXTC_IRQ_NAME "txtc"
+#define CNS21XX_GEC_TXQE_IRQ_NAME "txqe"
+
+enum cns21xx_gec_phy_type {
+ CNS21XX_GEC_PHY_TYPE_INTERNAL = 0,
+ CNS21XX_GEC_PHY_TYPE_VSC8601,
+ CNS21XX_GEC_PHY_TYPE_IP101A,
+ CNS21XX_GEC_PHY_TYPE_IP1001,
+};
+
+struct cns21xx_gec_plat_data {
+ u8 *mac_addr;
+ enum cns21xx_gec_phy_type phy_type;
+ u8 phy_addr;
+};
+
+#endif /* _CNS21XX_GEC_PLATFORM_H */