Messages in this thread Patch in this message | | | Date | Mon, 20 Feb 2006 01:01:57 +0000 | From | Martin Michlmayr <> | Subject | [RFC] [PATCH 2/2] Driver to remember ethernet MAC values: NSLU2 support |
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From: John Bowler <jbowler@acm.org>
Implement maclist support for the Linksys NSLU2. The MAC address is read from the RedBoot partition in flash.
Signed-off-by: John Bowler <jbowler@acm.org> Signed-off-by: Martin Michlmayr <tbm@cyrius.com> Signed-off-by: Alessandro Zummo <a.zummo@towertech.it> Signed-off-by: Rod Whitby <rod@whitby.id.au>
--
arch/arm/mach-ixp4xx/Kconfig | 4 +-- arch/arm/mach-ixp4xx/nslu2-setup.c | 39 +++++++++++++++++++++++++++++++++++++ 2 files changed, 41 insertions(+), 2 deletions(-)
--- linux-nslu2.orig/arch/arm/mach-ixp4xx/nslu2-setup.c 2006-02-06 22:34:55.000000000 +0100 +++ linux-nslu2/arch/arm/mach-ixp4xx/nslu2-setup.c 2006-02-06 22:35:31.000000000 +0100 @@ -16,11 +16,14 @@ #include <linux/kernel.h> #include <linux/serial.h> #include <linux/serial_8250.h> +#include <linux/mtd/mtd.h> #include <asm/mach-types.h> #include <asm/mach/arch.h> #include <asm/mach/flash.h> +#include <net/maclist.h> + static struct flash_platform_data nslu2_flash_data = { .map_name = "cfi_probe", .width = 2, @@ -117,6 +120,37 @@ static void nslu2_power_off(void) gpio_line_set(NSLU2_PO_GPIO, IXP4XX_GPIO_HIGH); } +/* + * When the RedBoot partition is added the MAC address is read from + * it. + */ +static void nslu2_flash_add(struct mtd_info *mtd) { + if (strcmp(mtd->name, "RedBoot") == 0) { + size_t retlen; + u_char mac[6]; + + /* The MAC is at a known offset... */ + if (mtd->read(mtd, 0x3FFB0, 6, &retlen, mac) == 0 && retlen == 6) { + printk(KERN_INFO "NSLU2 MAC: %.2x:%.2x:%.2x:%.2x:%.2x:%.2x\n", + mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]); + maclist_add(mac); + } else { + printk(KERN_ERR "NSLU2 MAC: read failed\n"); + } + } +} + +/* + * Nothing to do on remove at present. + */ +static void nslu2_flash_remove(struct mtd_info *mtd) { +} + +static struct mtd_notifier nslu2_flash_notifier = { + .add = nslu2_flash_add, + .remove = nslu2_flash_remove, +}; + static void __init nslu2_init(void) { /* The NSLU2 has a 33MHz crystal on board - 1.01% different @@ -124,6 +158,11 @@ static void __init nslu2_init(void) */ ixp4xx_set_board_tick_rate(66000000); + /* The flash has an ethernet MAC embedded in it which we need, + * that is all this notifier does. + */ + register_mtd_user(&nslu2_flash_notifier); + ixp4xx_sys_init(); pm_power_off = nslu2_power_off; -- Martin Michlmayr http://www.cyrius.com/ - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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