From 22a0200b18b8526043d3014efdaf839b01767111 Mon Sep 17 00:00:00 2001 From: Daniel Mack Date: Thu, 2 Apr 2009 08:33:14 +0200 Subject: [ARM] pxa/colibri: provide MAC address from ATAG_SERIAL In 67fca028f1535e510689d2e444b0289e264e05c1, the ax88796 ethernet driver learned a way to let the platform data hand in the MAC address. Use it here as the original Colibri bootloader passes in a MAC address via ATAG_SERIAL. Reported-by: Matthias Meier Signed-off-by: Daniel Mack Signed-off-by: Eric Miao --- arch/arm/mach-pxa/colibri-pxa300.c | 6 ++++-- arch/arm/mach-pxa/colibri-pxa320.c | 5 +++-- arch/arm/mach-pxa/colibri-pxa3xx.c | 35 ++++++++++++++++++++++++++++++++ arch/arm/mach-pxa/include/mach/colibri.h | 4 ++++ 4 files changed, 46 insertions(+), 4 deletions(-) (limited to 'arch') diff --git a/arch/arm/mach-pxa/colibri-pxa300.c b/arch/arm/mach-pxa/colibri-pxa300.c index 10c2eaf93230..0964eda4dcf4 100644 --- a/arch/arm/mach-pxa/colibri-pxa300.c +++ b/arch/arm/mach-pxa/colibri-pxa300.c @@ -32,12 +32,13 @@ #if defined(CONFIG_AX88796) #define COLIBRI_ETH_IRQ_GPIO mfp_to_gpio(GPIO26_GPIO) + /* * Asix AX88796 Ethernet */ static struct ax_plat_data colibri_asix_platdata = { - .flags = AXFLG_MAC_FROMDEV, - .wordlength = 2 + .flags = 0, /* defined later */ + .wordlength = 2, }; static struct resource colibri_asix_resource[] = { @@ -70,6 +71,7 @@ static mfp_cfg_t colibri_pxa300_eth_pin_config[] __initdata = { static void __init colibri_pxa300_init_eth(void) { + colibri_pxa3xx_init_eth(&colibri_asix_platdata); pxa3xx_mfp_config(ARRAY_AND_SIZE(colibri_pxa300_eth_pin_config)); set_irq_type(gpio_to_irq(COLIBRI_ETH_IRQ_GPIO), IRQ_TYPE_EDGE_FALLING); platform_device_register(&asix_device); diff --git a/arch/arm/mach-pxa/colibri-pxa320.c b/arch/arm/mach-pxa/colibri-pxa320.c index 55b74a7a6151..8a742b779e05 100644 --- a/arch/arm/mach-pxa/colibri-pxa320.c +++ b/arch/arm/mach-pxa/colibri-pxa320.c @@ -38,8 +38,8 @@ * Asix AX88796 Ethernet */ static struct ax_plat_data colibri_asix_platdata = { - .flags = AXFLG_MAC_FROMDEV, - .wordlength = 2 + .flags = 0, /* defined later */ + .wordlength = 2, }; static struct resource colibri_asix_resource[] = { @@ -72,6 +72,7 @@ static mfp_cfg_t colibri_pxa320_eth_pin_config[] __initdata = { static void __init colibri_pxa320_init_eth(void) { + colibri_pxa3xx_init_eth(&colibri_asix_platdata); pxa3xx_mfp_config(ARRAY_AND_SIZE(colibri_pxa320_eth_pin_config)); set_irq_type(gpio_to_irq(COLIBRI_ETH_IRQ_GPIO), IRQ_TYPE_EDGE_FALLING); platform_device_register(&asix_device); diff --git a/arch/arm/mach-pxa/colibri-pxa3xx.c b/arch/arm/mach-pxa/colibri-pxa3xx.c index 12d0afc54aa5..ea34e34f8cd8 100644 --- a/arch/arm/mach-pxa/colibri-pxa3xx.c +++ b/arch/arm/mach-pxa/colibri-pxa3xx.c @@ -14,6 +14,7 @@ #include #include #include +#include #include #include #include @@ -28,6 +29,40 @@ #include "generic.h" #include "devices.h" +#if defined(CONFIG_AX88796) +#define ETHER_ADDR_LEN 6 +static u8 ether_mac_addr[ETHER_ADDR_LEN]; + +void __init colibri_pxa3xx_init_eth(struct ax_plat_data *plat_data) +{ + int i; + u64 serial = ((u64) system_serial_high << 32) | system_serial_low; + + /* + * If the bootloader passed in a serial boot tag, which contains a + * valid ethernet MAC, pass it to the interface. Toradex ships the + * modules with their own bootloader which provides a valid MAC + * this way. + */ + + for (i = 0; i < ETHER_ADDR_LEN; i++) { + ether_mac_addr[i] = serial & 0xff; + serial >>= 8; + } + + if (is_valid_ether_addr(ether_mac_addr)) { + plat_data->flags |= AXFLG_MAC_FROMPLATFORM; + plat_data->mac_addr = ether_mac_addr; + printk(KERN_INFO "%s(): taking MAC from serial boot tag\n", + __func__); + } else { + plat_data->flags |= AXFLG_MAC_FROMDEV; + printk(KERN_INFO "%s(): no valid serial boot tag found, " + "taking MAC from device\n", __func__); + } +} +#endif + #if defined(CONFIG_MMC_PXA) || defined(CONFIG_MMC_PXA_MODULE) static int mmc_detect_pin; diff --git a/arch/arm/mach-pxa/include/mach/colibri.h b/arch/arm/mach-pxa/include/mach/colibri.h index 3f2a01d6a03c..306ad64409be 100644 --- a/arch/arm/mach-pxa/include/mach/colibri.h +++ b/arch/arm/mach-pxa/include/mach/colibri.h @@ -16,6 +16,10 @@ extern void colibri_pxa3xx_init_lcd(int bl_pin); static inline void colibri_pxa3xx_init_lcd(int) {} #endif +#if defined(CONFIG_AX88796) +extern void colibri_pxa3xx_init_eth(struct ax_plat_data *plat_data); +#endif + /* physical memory regions */ #define COLIBRI_SDRAM_BASE 0xa0000000 /* SDRAM region */ -- cgit