From 422782249927e887a4c032d1d7e1f59de281ecbb Mon Sep 17 00:00:00 2001 From: Matt Carlson Date: Mon, 13 Feb 2012 15:20:11 +0000 Subject: [PATCH] tg3: Fix NVRAM page writes on newer devices 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 Signed-off-by: David S. Miller --- drivers/net/ethernet/broadcom/tg3.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/drivers/net/ethernet/broadcom/tg3.c b/drivers/net/ethernet/broadcom/tg3.c index cb17885cad47..67b6d61abfe1 100644 --- a/drivers/net/ethernet/broadcom/tg3.c +++ b/drivers/net/ethernet/broadcom/tg3.c @@ -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) && -- 2.39.5