diff options
Diffstat (limited to 'arch/mips/bcm63xx/nvram.c')
| -rw-r--r-- | arch/mips/bcm63xx/nvram.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/arch/mips/bcm63xx/nvram.c b/arch/mips/bcm63xx/nvram.c index a4b8864f9307..4b50d40f7451 100644 --- a/arch/mips/bcm63xx/nvram.c +++ b/arch/mips/bcm63xx/nvram.c @@ -35,6 +35,8 @@ struct bcm963xx_nvram { u32 checksum_high; }; +#define BCM63XX_DEFAULT_PSI_SIZE 64 + static struct bcm963xx_nvram nvram; static int mac_addr_used; @@ -42,6 +44,7 @@ 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 +65,15 @@ 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) @@ -104,3 +116,12 @@ int bcm63xx_nvram_get_mac_address(u8 *mac) return 0; } EXPORT_SYMBOL(bcm63xx_nvram_get_mac_address); + +int bcm63xx_nvram_get_psi_size(void) +{ + if (nvram.psi_size > 0) + return nvram.psi_size; + + return BCM63XX_DEFAULT_PSI_SIZE; +} +EXPORT_SYMBOL(bcm63xx_nvram_get_psi_size); |