According to the TRM [0] in 21.5.1.42 UART_SYSC Register, the autoidle bit should not be set for UART, so remove the appropriate SYSC_OMAP2_AUTOIDLE flag. [0] https://www.ti.com/lit/ug/spruhl7i/spruhl7i.pdf Signed-off-by: Judith Mendez <jm@xxxxxx> --- arch/arm/boot/dts/ti/omap/am437x-l4.dtsi | 18 ++++++------------ 1 file changed, 6 insertions(+), 12 deletions(-) diff --git a/arch/arm/boot/dts/ti/omap/am437x-l4.dtsi b/arch/arm/boot/dts/ti/omap/am437x-l4.dtsi index 824b9415ebbe9..fd4634f8c6293 100644 --- a/arch/arm/boot/dts/ti/omap/am437x-l4.dtsi +++ b/arch/arm/boot/dts/ti/omap/am437x-l4.dtsi @@ -180,8 +180,7 @@ target-module@9000 { /* 0x44e09000, ap 16 04.0 */ <0x9058 0x4>; reg-names = "rev", "sysc", "syss"; ti,sysc-mask = <(SYSC_OMAP2_ENAWAKEUP | - SYSC_OMAP2_SOFTRESET | - SYSC_OMAP2_AUTOIDLE)>; + SYSC_OMAP2_SOFTRESET)>; ti,sysc-sidle = <SYSC_IDLE_FORCE>, <SYSC_IDLE_NO>, <SYSC_IDLE_SMART>, @@ -698,8 +697,7 @@ target-module@22000 { /* 0x48022000, ap 8 0a.0 */ <0x22058 0x4>; reg-names = "rev", "sysc", "syss"; ti,sysc-mask = <(SYSC_OMAP2_ENAWAKEUP | - SYSC_OMAP2_SOFTRESET | - SYSC_OMAP2_AUTOIDLE)>; + SYSC_OMAP2_SOFTRESET)>; ti,sysc-sidle = <SYSC_IDLE_FORCE>, <SYSC_IDLE_NO>, <SYSC_IDLE_SMART>, @@ -726,8 +724,7 @@ target-module@24000 { /* 0x48024000, ap 10 1c.0 */ <0x24058 0x4>; reg-names = "rev", "sysc", "syss"; ti,sysc-mask = <(SYSC_OMAP2_ENAWAKEUP | - SYSC_OMAP2_SOFTRESET | - SYSC_OMAP2_AUTOIDLE)>; + SYSC_OMAP2_SOFTRESET)>; ti,sysc-sidle = <SYSC_IDLE_FORCE>, <SYSC_IDLE_NO>, <SYSC_IDLE_SMART>, @@ -1385,8 +1382,7 @@ target-module@a6000 { /* 0x481a6000, ap 40 16.0 */ <0xa6058 0x4>; reg-names = "rev", "sysc", "syss"; ti,sysc-mask = <(SYSC_OMAP2_ENAWAKEUP | - SYSC_OMAP2_SOFTRESET | - SYSC_OMAP2_AUTOIDLE)>; + SYSC_OMAP2_SOFTRESET)>; ti,sysc-sidle = <SYSC_IDLE_FORCE>, <SYSC_IDLE_NO>, <SYSC_IDLE_SMART>, @@ -1413,8 +1409,7 @@ target-module@a8000 { /* 0x481a8000, ap 42 20.0 */ <0xa8058 0x4>; reg-names = "rev", "sysc", "syss"; ti,sysc-mask = <(SYSC_OMAP2_ENAWAKEUP | - SYSC_OMAP2_SOFTRESET | - SYSC_OMAP2_AUTOIDLE)>; + SYSC_OMAP2_SOFTRESET)>; ti,sysc-sidle = <SYSC_IDLE_FORCE>, <SYSC_IDLE_NO>, <SYSC_IDLE_SMART>, @@ -1441,8 +1436,7 @@ target-module@aa000 { /* 0x481aa000, ap 44 12.0 */ <0xaa058 0x4>; reg-names = "rev", "sysc", "syss"; ti,sysc-mask = <(SYSC_OMAP2_ENAWAKEUP | - SYSC_OMAP2_SOFTRESET | - SYSC_OMAP2_AUTOIDLE)>; + SYSC_OMAP2_SOFTRESET)>; ti,sysc-sidle = <SYSC_IDLE_FORCE>, <SYSC_IDLE_NO>, <SYSC_IDLE_SMART>, -- 2.47.1
