@@ -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)
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(+)