[ARM] 4806/1: ixp4xx: Ethernet support for the nslu2 and nas100d boards

Enables the new ixp4xx qmgr and npe drivers in ixp4xx_defconfig.

Sets up the corresponding platform data for the nslu2 and nas100d
boards, and reads the ethernet MAC address from the internal flash.

Tested on both little-endian and big-endian kernels.

Tested-by: Tom King <tom@websb.net>

Signed-off-by: Rod Whitby <rod@whitby.id.au>
Signed-off-by: Michael Westerhof <mwester@dls.net>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

3 files changed, 93 insertions, 2 deletions

diff --git a/arch/arm/configs/ixp4xx_defconfig b/arch/arm/configs/ixp4xx_defconfig
index 77fe3b005141..efa0485d2f7e 100644
--- a/arch/arm/configs/ixp4xx_defconfig
+++ b/arch/arm/configs/ixp4xx_defconfig
@@ -1,7 +1,7 @@
 #
 # Automatically generated make config: don't edit
-# Linux kernel version: 2.6.24-rc8
-# Wed Jan 23 17:26:16 2008
+# Linux kernel version: 2.6.24
+# Sun Jan 27 07:33:38 2008
 #
 CONFIG_ARM=y
 CONFIG_SYS_SUPPORTS_APM_EMULATION=y
@@ -174,6 +174,8 @@ CONFIG_MACH_GTWX5715=y
 #
 CONFIG_DMABOUNCE=y
 # CONFIG_IXP4XX_INDIRECT_PCI is not set
+CONFIG_IXP4XX_QMGR=y
+CONFIG_IXP4XX_NPE=y
 
 #
 # Boot options
@@ -832,6 +834,7 @@ CONFIG_DUMMY=y
 # CONFIG_PHYLIB is not set
 CONFIG_NET_ETHERNET=y
 CONFIG_MII=y
+CONFIG_IXP4XX_ETH=y
 # CONFIG_AX88796 is not set
 # CONFIG_HAPPYMEAL is not set
 # CONFIG_SUNGEM is not set
@@ -925,6 +928,7 @@ CONFIG_HDLC_X25=m
 # CONFIG_PC300TOO is not set
 # CONFIG_FARSYNC is not set
 # CONFIG_DSCC4 is not set
+# CONFIG_IXP4XX_HSS is not set
 CONFIG_DLCI=m
 CONFIG_DLCI_MAX=8
 CONFIG_WAN_ROUTER_DRIVERS=m
diff --git a/arch/arm/mach-ixp4xx/nas100d-setup.c b/arch/arm/mach-ixp4xx/nas100d-setup.c
index 5801579ae959..a432226b2050 100644
--- a/arch/arm/mach-ixp4xx/nas100d-setup.c
+++ b/arch/arm/mach-ixp4xx/nas100d-setup.c
@@ -12,6 +12,7 @@
  *
  */
 
+#include <linux/if_ether.h>
 #include <linux/kernel.h>
 #include <linux/serial.h>
 #include <linux/serial_8250.h>
@@ -22,6 +23,7 @@
 #include <asm/mach-types.h>
 #include <asm/mach/arch.h>
 #include <asm/mach/flash.h>
+#include <asm/io.h>
 
 static struct flash_platform_data nas100d_flash_data = {
         .map_name               = "cfi_probe",
@@ -131,10 +133,28 @@ static struct platform_device nas100d_uart = {
         .resource               = nas100d_uart_resources,
 };
 
+/* Built-in 10/100 Ethernet MAC interfaces */
+static struct eth_plat_info nas100d_plat_eth[] = {
+        {
+                .phy            = 0,
+                .rxq            = 3,
+                .txreadyq       = 20,
+        }
+};
+
+static struct platform_device nas100d_eth[] = {
+        {
+                .name                   = "ixp4xx_eth",
+                .id                     = IXP4XX_ETH_NPEB,
+                .dev.platform_data      = nas100d_plat_eth,
+        }
+};
+
 static struct platform_device *nas100d_devices[] __initdata = {
         &nas100d_i2c_gpio,
         &nas100d_flash,
         &nas100d_leds,
+        &nas100d_eth[0],
 };
 
 static void nas100d_power_off(void)
@@ -150,6 +170,10 @@ static void nas100d_power_off(void)
 
 static void __init nas100d_init(void)
 {
+        DECLARE_MAC_BUF(mac_buf);
+        uint8_t __iomem *f;
+        int i;
+
         ixp4xx_sys_init();
 
         /* gpio 14 and 15 are _not_ clocks */
@@ -172,6 +196,25 @@ static void __init nas100d_init(void)
         (void)platform_device_register(&nas100d_uart);
 
         platform_add_devices(nas100d_devices, ARRAY_SIZE(nas100d_devices));
+
+        /*
+         * Map in a portion of the flash and read the MAC address.
+         * Since it is stored in BE in the flash itself, we need to
+         * byteswap it if we're in LE mode.
+         */
+        f = ioremap(IXP4XX_EXP_BUS_BASE(0), 0x1000000);
+        if (f) {
+                for (i = 0; i < 6; i++)
+#ifdef __ARMEB__
+                        nas100d_plat_eth[0].hwaddr[i] = readb(f + 0xFC0FD8 + i);
+#else
+                        nas100d_plat_eth[0].hwaddr[i] = readb(f + 0xFC0FD8 + (i^3));
+#endif
+                iounmap(f);
+        }
+        printk(KERN_INFO "NAS100D: Using MAC address %s for port 0\n",
+               print_mac(mac_buf, nas100d_plat_eth[0].hwaddr));
+
 }
 
 MACHINE_START(NAS100D, "Iomega NAS 100d")
diff --git a/arch/arm/mach-ixp4xx/nslu2-setup.c b/arch/arm/mach-ixp4xx/nslu2-setup.c
index 41d55c84164a..fd9ec17c8b86 100644
--- a/arch/arm/mach-ixp4xx/nslu2-setup.c
+++ b/arch/arm/mach-ixp4xx/nslu2-setup.c
@@ -14,6 +14,7 @@
  * Changed to conform to new style __init ixdp425 kas11 10/22/04
  */
 
+#include <linux/if_ether.h>
 #include <linux/kernel.h>
 #include <linux/serial.h>
 #include <linux/serial_8250.h>
@@ -25,6 +26,7 @@
 #include <asm/mach/arch.h>
 #include <asm/mach/flash.h>
 #include <asm/mach/time.h>
+#include <asm/io.h>
 
 static struct flash_platform_data nslu2_flash_data = {
         .map_name               = "cfi_probe",
@@ -143,11 +145,29 @@ static struct platform_device nslu2_uart = {
         .resource               = nslu2_uart_resources,
 };
 
+/* Built-in 10/100 Ethernet MAC interfaces */
+static struct eth_plat_info nslu2_plat_eth[] = {
+        {
+                .phy            = 1,
+                .rxq            = 3,
+                .txreadyq       = 20,
+        }
+};
+
+static struct platform_device nslu2_eth[] = {
+        {
+                .name                   = "ixp4xx_eth",
+                .id                     = IXP4XX_ETH_NPEB,
+                .dev.platform_data      = nslu2_plat_eth,
+        }
+};
+
 static struct platform_device *nslu2_devices[] __initdata = {
         &nslu2_i2c_gpio,
         &nslu2_flash,
         &nslu2_beeper,
         &nslu2_leds,
+        &nslu2_eth[0],
 };
 
 static void nslu2_power_off(void)
@@ -176,6 +196,10 @@ static struct sys_timer nslu2_timer = {
 
 static void __init nslu2_init(void)
 {
+        DECLARE_MAC_BUF(mac_buf);
+        uint8_t __iomem *f;
+        int i;
+
         ixp4xx_sys_init();
 
         nslu2_flash_resource.start = IXP4XX_EXP_BUS_BASE(0);
@@ -195,6 +219,26 @@ static void __init nslu2_init(void)
         (void)platform_device_register(&nslu2_uart);
 
         platform_add_devices(nslu2_devices, ARRAY_SIZE(nslu2_devices));
+
+
+        /*
+         * Map in a portion of the flash and read the MAC address.
+         * Since it is stored in BE in the flash itself, we need to
+         * byteswap it if we're in LE mode.
+         */
+        f = ioremap(IXP4XX_EXP_BUS_BASE(0), 0x40000);
+        if (f) {
+                for (i = 0; i < 6; i++)
+#ifdef __ARMEB__
+                        nslu2_plat_eth[0].hwaddr[i] = readb(f + 0x3FFB0 + i);
+#else
+                        nslu2_plat_eth[0].hwaddr[i] = readb(f + 0x3FFB0 + (i^3));
+#endif
+                iounmap(f);
+        }
+        printk(KERN_INFO "NSLU2: Using MAC address %s for port 0\n",
+               print_mac(mac_buf, nslu2_plat_eth[0].hwaddr));
+
 }
 
 MACHINE_START(NSLU2, "Linksys NSLU2")