From 404fdc457082772ff52e22988e09e82c0d6e8780 Mon Sep 17 00:00:00 2001 From: Florian Fainelli Date: Tue, 18 Jun 2013 16:55:42 +0000 Subject: [PATCH] MIPS: BCM63XX: provide a MAC address for BCM3368 chips The BCM3368 SoC uses a NVRAM format which is not compatible with the one used by CFE, provide a default MAC address which is suitable for use and which is the default one also being used by the bootloader on these chips. Signed-off-by: Florian Fainelli Cc: linux-mips@linux-mips.org Cc: cernekee@gmail.com Cc: jogo@openwrt.org Patchwork: https://patchwork.linux-mips.org/patch/5498/ Signed-off-by: Ralf Baechle --- arch/mips/bcm63xx/nvram.c | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/arch/mips/bcm63xx/nvram.c b/arch/mips/bcm63xx/nvram.c index a4b8864f9307..e652e578a679 100644 --- a/arch/mips/bcm63xx/nvram.c +++ b/arch/mips/bcm63xx/nvram.c @@ -42,6 +42,7 @@ void __init bcm63xx_nvram_init(void *addr) { unsigned int check_len; u32 crc, expected_crc; + u8 hcs_mac_addr[ETH_ALEN] = { 0x00, 0x10, 0x18, 0xff, 0xff, 0xff }; /* extract nvram data */ memcpy(&nvram, addr, sizeof(nvram)); @@ -62,6 +63,15 @@ void __init bcm63xx_nvram_init(void *addr) if (crc != expected_crc) pr_warn("nvram checksum failed, contents may be invalid (expected %08x, got %08x)\n", expected_crc, crc); + + /* Cable modems have a different NVRAM which is embedded in the eCos + * firmware and not easily extractible, give at least a MAC address + * pool. + */ + if (BCMCPU_IS_3368()) { + memcpy(nvram.mac_addr_base, hcs_mac_addr, ETH_ALEN); + nvram.mac_addr_count = 2; + } } u8 *bcm63xx_nvram_get_name(void) -- 2.39.5