From: Matt Carlson Date: Mon, 13 Feb 2012 15:20:11 +0000 (+0000) Subject: tg3: Fix NVRAM page writes on newer devices X-Git-Tag: v3.4-rc1~177^2~301 X-Git-Url: https://openfabrics.org/gitweb/?a=commitdiff_plain;h=422782249927e887a4c032d1d7e1f59de281ecbb;p=~emulex%2Finfiniband.git 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 --- diff --git a/drivers/net/ethernet/broadcom/tg3.c b/drivers/net/ethernet/broadcom/tg3.c index cb17885cad4..67b6d61abfe 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) &&