diff mbox series

[U-Boot,v2,1/6] net: ti: cpsw: enable 10Mbps link speed support in rgmii mode

Message ID 20190919081642.21038-2-grygorii.strashko@ti.com
State Accepted
Commit 60e81d0d2855690347bc479c9c20b4ad5de0b703
Delegated to: Tom Rini
Headers show
Series net: ti: set of fixes and improvements | expand

Commit Message

Grygorii Strashko Sept. 19, 2019, 8:16 a.m. UTC
According to TRMs the 10Mbps link speed is supported in RGMII only when
CPSW2G MAC SL is configured for External Control ("in band") mode
CPSW_SL_MACCTRL.EXT_EN(18) = 1.

Hence update cpsw_slave_update_link() to follow documentation.

[1] https://patchwork.kernel.org/patch/10285239/
Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
---
 drivers/net/ti/cpsw.c | 3 +++
 1 file changed, 3 insertions(+)

Comments

Tom Rini Nov. 4, 2019, 11:09 p.m. UTC | #1
On Thu, Sep 19, 2019 at 11:16:37AM +0300, Grygorii Strashko wrote:

> According to TRMs the 10Mbps link speed is supported in RGMII only when
> CPSW2G MAC SL is configured for External Control ("in band") mode
> CPSW_SL_MACCTRL.EXT_EN(18) = 1.
> 
> Hence update cpsw_slave_update_link() to follow documentation.
> 
> [1] https://patchwork.kernel.org/patch/10285239/
> Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>

Applied to u-boot/master, thanks!
diff mbox series

Patch

diff --git a/drivers/net/ti/cpsw.c b/drivers/net/ti/cpsw.c
index 20ddb44dd8..f0d008f0f5 100644
--- a/drivers/net/ti/cpsw.c
+++ b/drivers/net/ti/cpsw.c
@@ -33,6 +33,7 @@  DECLARE_GLOBAL_DATA_PTR;
 #define GIGABITEN		BIT(7)
 #define FULLDUPLEXEN		BIT(0)
 #define MIIEN			BIT(15)
+#define CTL_EXT_EN		BIT(18)
 /* DMA Registers */
 #define CPDMA_TXCONTROL		0x004
 #define CPDMA_RXCONTROL		0x014
@@ -489,6 +490,8 @@  static int cpsw_slave_update_link(struct cpsw_slave *slave,
 			mac_control |= FULLDUPLEXEN;
 		if (phy->speed == 100)
 			mac_control |= MIIEN;
+		if (phy->speed == 10 && phy_interface_is_rgmii(phy))
+			mac_control |= CTL_EXT_EN;
 	}
 
 	if (mac_control == slave->mac_control)