| From | Greg Kroah-Hartman <> | Subject | [PATCH 4.4 014/107] tg3: Add higher cpu clock for 5762. | Date | Mon, 23 Jul 2018 14:41:08 +0200 |
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4.4-stable review patch. If anyone has any objections, please let me know.
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From: Sanjeev Bansal <sanjeevb.bansal@broadcom.com>
[ Upstream commit 3a498606bb04af603a46ebde8296040b2de350d1 ]
This patch has fix for TX timeout while running bi-directional traffic with 100 Mbps using 5762.
Signed-off-by: Sanjeev Bansal <sanjeevb.bansal@broadcom.com> Signed-off-by: Siva Reddy Kallam <siva.kallam@broadcom.com> Reviewed-by: Michael Chan <michael.chan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> --- drivers/net/ethernet/broadcom/tg3.c | 9 +++++++++ 1 file changed, 9 insertions(+)
--- a/drivers/net/ethernet/broadcom/tg3.c +++ b/drivers/net/ethernet/broadcom/tg3.c @@ -9278,6 +9278,15 @@ static int tg3_chip_reset(struct tg3 *tp tg3_restore_clk(tp); + /* Increase the core clock speed to fix tx timeout issue for 5762 + * with 100Mbps link speed. + */ + if (tg3_asic_rev(tp) == ASIC_REV_5762) { + val = tr32(TG3_CPMU_CLCK_ORIDE_ENABLE); + tw32(TG3_CPMU_CLCK_ORIDE_ENABLE, val | + TG3_CPMU_MAC_ORIDE_ENABLE); + } + /* Reprobe ASF enable state. */ tg3_flag_clear(tp, ENABLE_ASF); tp->phy_flags &= ~(TG3_PHYFLG_1G_ON_VAUX_OK |
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