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authorAndré Fabian Silva Delgado <emulatorman@parabola.nu>2016-03-25 03:53:42 -0300
committerAndré Fabian Silva Delgado <emulatorman@parabola.nu>2016-03-25 03:53:42 -0300
commit03dd4cb26d967f9588437b0fc9cc0e8353322bb7 (patch)
treefa581f6dc1c0596391690d1f67eceef3af8246dc /arch/mips/bcm63xx/nvram.c
parentd4e493caf788ef44982e131ff9c786546904d934 (diff)
Linux-libre 4.5-gnu
Diffstat (limited to 'arch/mips/bcm63xx/nvram.c')
-rw-r--r--arch/mips/bcm63xx/nvram.c35
1 files changed, 3 insertions, 32 deletions
diff --git a/arch/mips/bcm63xx/nvram.c b/arch/mips/bcm63xx/nvram.c
index 4b50d40f7..05757aed0 100644
--- a/arch/mips/bcm63xx/nvram.c
+++ b/arch/mips/bcm63xx/nvram.c
@@ -10,6 +10,7 @@
#define pr_fmt(fmt) "bcm63xx_nvram: " fmt
+#include <linux/bcm963xx_nvram.h>
#include <linux/init.h>
#include <linux/crc32.h>
#include <linux/export.h>
@@ -18,23 +19,6 @@
#include <bcm63xx_nvram.h>
-/*
- * nvram structure
- */
-struct bcm963xx_nvram {
- u32 version;
- u8 reserved1[256];
- u8 name[16];
- u32 main_tp_number;
- u32 psi_size;
- u32 mac_addr_count;
- u8 mac_addr_base[ETH_ALEN];
- u8 reserved2[2];
- u32 checksum_old;
- u8 reserved3[720];
- u32 checksum_high;
-};
-
#define BCM63XX_DEFAULT_PSI_SIZE 64
static struct bcm963xx_nvram nvram;
@@ -42,27 +26,14 @@ static int mac_addr_used;
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));
+ memcpy(&nvram, addr, BCM963XX_NVRAM_V5_SIZE);
/* check checksum before using data */
- if (nvram.version <= 4) {
- check_len = offsetof(struct bcm963xx_nvram, reserved3);
- expected_crc = nvram.checksum_old;
- nvram.checksum_old = 0;
- } else {
- check_len = sizeof(nvram);
- expected_crc = nvram.checksum_high;
- nvram.checksum_high = 0;
- }
-
- crc = crc32_le(~0, (u8 *)&nvram, check_len);
-
- if (crc != expected_crc)
+ if (bcm963xx_nvram_checksum(&nvram, &expected_crc, &crc))
pr_warn("nvram checksum failed, contents may be invalid (expected %08x, got %08x)\n",
expected_crc, crc);