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Message-ID: <1329182417-28223-5-git-send-email-mcarlson@broadcom.com> Date: Mon, 13 Feb 2012 17:20:11 -0800 From: "Matt Carlson" <mcarlson@...adcom.com> To: davem@...emloft.net cc: netdev@...r.kernel.org, mcarlson@...adcom.com, mchan@...adcom.com Subject: [PATCH net-next 04/10] 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 <mcarlson@...adcom.com> --- drivers/net/ethernet/broadcom/tg3.c | 7 +++++-- 1 files changed, 5 insertions(+), 2 deletions(-) diff --git a/drivers/net/ethernet/broadcom/tg3.c b/drivers/net/ethernet/broadcom/tg3.c index cb17885..67b6d61 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) && -- 1.7.3.4 -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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