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authorSanjeev Bansal <sanjeevb.bansal@broadcom.com>2018-07-16 11:13:32 +0530
committerDavid S. Miller <davem@davemloft.net>2018-07-16 14:42:11 -0700
commit3a498606bb04af603a46ebde8296040b2de350d1 (patch)
tree426494f1eb465313a7fd2d8f1e7813937f49987d /drivers/net/ethernet/broadcom/tg3.c
parenttg3: Update copyright (diff)
downloadlinux-dev-3a498606bb04af603a46ebde8296040b2de350d1.tar.xz
linux-dev-3a498606bb04af603a46ebde8296040b2de350d1.zip
tg3: Add higher cpu clock for 5762.
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>
Diffstat (limited to 'drivers/net/ethernet/broadcom/tg3.c')
-rw-r--r--drivers/net/ethernet/broadcom/tg3.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/net/ethernet/broadcom/tg3.c b/drivers/net/ethernet/broadcom/tg3.c
index 2ee15273ae29..aa1374d0af93 100644
--- a/drivers/net/ethernet/broadcom/tg3.c
+++ b/drivers/net/ethernet/broadcom/tg3.c
@@ -9294,6 +9294,15 @@ 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 |