From: Sandeep Paulraj s-paulraj@ti.com
Enabling the gigabit was overwriting the previous configuration by setting up only GIGAFORCE and GIG bits of MAC control register. Modified to retain previous configuration while gigabit enabling.
Signed-off-by: Prakash PM prakash.pm@ti.com Signed-off-by: Sandeep Paulraj s-paulraj@ti.com --- drivers/net/davinci_emac.c | 7 ++++--- 1 files changed, 4 insertions(+), 3 deletions(-)
diff --git a/drivers/net/davinci_emac.c b/drivers/net/davinci_emac.c index 43a3d79..9371d96 100644 --- a/drivers/net/davinci_emac.c +++ b/drivers/net/davinci_emac.c @@ -322,9 +322,10 @@ static void __attribute__((unused)) davinci_eth_gigabit_enable(void) * Check if link detected is giga-bit * If Gigabit mode detected, enable gigbit in MAC */ - writel(EMAC_MACCONTROL_GIGFORCE | - EMAC_MACCONTROL_GIGABIT_ENABLE, - &adap_emac->MACCONTROL); + writel(readl(&adap_emac->MACCONTROL) | + EMAC_MACCONTROL_GIGFORCE | + EMAC_MACCONTROL_GIGABIT_ENABLE, + &adap_emac->MACCONTROL); } } }