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tg3: Fix NVRAM page writes on newer devices

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On newer devices, the hardware expects the NVRAM address register
to be written only once per NVRAM page.  To do otherwise causes NVRAM
corruption.  This patch fixes the problem.

Signed-off-by: Matt Carlson <mcarlson@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Matt Carlson 2012-02-13 15:20:11 +00:00 • committed by David S. Miller
parent 3198e07fd6
commit 4227822499
1 changed files with 5 additions and 2 deletions
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7
drivers/net/ethernet/broadcom/tg3.c
View file

@ -3140,8 +3140,6 @@ static int tg3_nvram_write_block_buffered(struct tg3 *tp, u32 offset, u32 len,
phy_addr = tg3_nvram_phys_addr(tp, offset);
tw32(NVRAM_ADDR, phy_addr);
nvram_cmd = NVRAM_CMD_GO | NVRAM_CMD_DONE | NVRAM_CMD_WR;
if (page_off == 0 || i == 0)
@ -3152,6 +3150,11 @@ static int tg3_nvram_write_block_buffered(struct tg3 *tp, u32 offset, u32 len,
if (i == (len - 4))
nvram_cmd |= NVRAM_CMD_LAST;
if ((nvram_cmd & NVRAM_CMD_FIRST) ||
!tg3_flag(tp, FLASH) ||
!tg3_flag(tp, 57765_PLUS))
tw32(NVRAM_ADDR, phy_addr);
if (GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5752 &&
!tg3_flag(tp, 5755_PLUS) &&
(tp->nvram_jedecnum == JEDEC_ST) &&