* [PATCH] ARM: dts: imx53: fix EIM_D27/29 pad UART2 configuration
@ 2015-11-26 10:59 linux-kernel-dev at beckhoff.com
2015-12-02 6:52 ` Shawn Guo
0 siblings, 1 reply; 7+ messages in thread
From: linux-kernel-dev at beckhoff.com @ 2015-11-26 10:59 UTC (permalink / raw)
To: linux-arm-kernel
From: Patrick Br?nn <p.bruenn@beckhoff.com>
MX53_PAD_EIM_D27__UART2_RXD_MUX and MX53_PAD_EIM_D29__UART2_RTS input_val must be configured as 0 instead of 1 to have UART2 muxed on EIM pins working
Signed-off-by: Patrick Br?nn <p.bruenn@beckhoff.com>
---
arch/arm/boot/dts/imx53-pinfunc.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/arm/boot/dts/imx53-pinfunc.h b/arch/arm/boot/dts/imx53-pinfunc.h
index aec406b..a4c973d 100644
--- a/arch/arm/boot/dts/imx53-pinfunc.h
+++ b/arch/arm/boot/dts/imx53-pinfunc.h
@@ -532,7 +532,7 @@
#define MX53_PAD_EIM_D26__IPU_DISP1_DAT_22 0x144 0x48c 0x000 0x7 0x0
#define MX53_PAD_EIM_D27__EMI_WEIM_D_27 0x148 0x490 0x000 0x0 0x0
#define MX53_PAD_EIM_D27__GPIO3_27 0x148 0x490 0x000 0x1 0x0
-#define MX53_PAD_EIM_D27__UART2_RXD_MUX 0x148 0x490 0x880 0x2 0x1
+#define MX53_PAD_EIM_D27__UART2_RXD_MUX 0x148 0x490 0x880 0x2 0x0
#define MX53_PAD_EIM_D27__FIRI_TXD 0x148 0x490 0x000 0x3 0x0
#define MX53_PAD_EIM_D27__IPU_CSI0_D_0 0x148 0x490 0x000 0x4 0x0
#define MX53_PAD_EIM_D27__IPU_DI1_PIN13 0x148 0x490 0x000 0x5 0x0
@@ -548,7 +548,7 @@
#define MX53_PAD_EIM_D28__IPU_DI0_PIN13 0x14c 0x494 0x000 0x7 0x0
#define MX53_PAD_EIM_D29__EMI_WEIM_D_29 0x150 0x498 0x000 0x0 0x0
#define MX53_PAD_EIM_D29__GPIO3_29 0x150 0x498 0x000 0x1 0x0
-#define MX53_PAD_EIM_D29__UART2_RTS 0x150 0x498 0x87c 0x2 0x1
+#define MX53_PAD_EIM_D29__UART2_RTS 0x150 0x498 0x87c 0x2 0x0
#define MX53_PAD_EIM_D29__IPU_DISPB0_SER_RS 0x150 0x498 0x000 0x3 0x0
#define MX53_PAD_EIM_D29__CSPI_SS0 0x150 0x498 0x78c 0x4 0x2
#define MX53_PAD_EIM_D29__IPU_DI1_PIN15 0x150 0x498 0x000 0x5 0x0
--
1.9.1
^ permalink raw reply related [flat|nested] 7+ messages in thread
* [PATCH] ARM: dts: imx53: fix EIM_D27/29 pad UART2 configuration
2015-11-26 10:59 [PATCH] ARM: dts: imx53: fix EIM_D27/29 pad UART2 configuration linux-kernel-dev at beckhoff.com
@ 2015-12-02 6:52 ` Shawn Guo
0 siblings, 0 replies; 7+ messages in thread
From: Shawn Guo @ 2015-12-02 6:52 UTC (permalink / raw)
To: linux-arm-kernel
On Thu, Nov 26, 2015 at 11:59:15AM +0100, linux-kernel-dev at beckhoff.com wrote:
> From: Patrick Br?nn <p.bruenn@beckhoff.com>
>
> MX53_PAD_EIM_D27__UART2_RXD_MUX and MX53_PAD_EIM_D29__UART2_RTS input_val must be configured as 0 instead of 1 to have UART2 muxed on EIM pins working
I'm not sure why you think that. But the i.MX53 Reference Manual in my
hands doesn't agree with that. It says ...
>
> Signed-off-by: Patrick Br?nn <p.bruenn@beckhoff.com>
> ---
> arch/arm/boot/dts/imx53-pinfunc.h | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/arch/arm/boot/dts/imx53-pinfunc.h b/arch/arm/boot/dts/imx53-pinfunc.h
> index aec406b..a4c973d 100644
> --- a/arch/arm/boot/dts/imx53-pinfunc.h
> +++ b/arch/arm/boot/dts/imx53-pinfunc.h
> @@ -532,7 +532,7 @@
> #define MX53_PAD_EIM_D26__IPU_DISP1_DAT_22 0x144 0x48c 0x000 0x7 0x0
> #define MX53_PAD_EIM_D27__EMI_WEIM_D_27 0x148 0x490 0x000 0x0 0x0
> #define MX53_PAD_EIM_D27__GPIO3_27 0x148 0x490 0x000 0x1 0x0
> -#define MX53_PAD_EIM_D27__UART2_RXD_MUX 0x148 0x490 0x880 0x2 0x1
> +#define MX53_PAD_EIM_D27__UART2_RXD_MUX 0x148 0x490 0x880 0x2 0x0
IOMUXC_UART2_IPP_UART_RXD_MUX_SELECT_INPUT DAISY field descriptions
000 - Selecting Pad: EIM_D26 for Mode: ALT2.
001 - Selecting Pad: EIM_D27 for Mode: ALT2.
010 - Selecting Pad: PATA_DMARQ for Mode: ALT3.
011 - Selecting Pad: PATA_BUFFER_EN for Mode: ALT3.
100 - Selecting Pad: GPIO_7 for Mode: ALT4.
101 - Selecting Pad: GPIO_8 for Mode: ALT4.
> #define MX53_PAD_EIM_D27__FIRI_TXD 0x148 0x490 0x000 0x3 0x0
> #define MX53_PAD_EIM_D27__IPU_CSI0_D_0 0x148 0x490 0x000 0x4 0x0
> #define MX53_PAD_EIM_D27__IPU_DI1_PIN13 0x148 0x490 0x000 0x5 0x0
> @@ -548,7 +548,7 @@
> #define MX53_PAD_EIM_D28__IPU_DI0_PIN13 0x14c 0x494 0x000 0x7 0x0
> #define MX53_PAD_EIM_D29__EMI_WEIM_D_29 0x150 0x498 0x000 0x0 0x0
> #define MX53_PAD_EIM_D29__GPIO3_29 0x150 0x498 0x000 0x1 0x0
> -#define MX53_PAD_EIM_D29__UART2_RTS 0x150 0x498 0x87c 0x2 0x1
> +#define MX53_PAD_EIM_D29__UART2_RTS 0x150 0x498 0x87c 0x2 0x0
IOMUXC_UART2_IPP_UART_RTS_B_SELECT_INPUT DAISY field descriptions
00 - Selecting Pad: EIM_D28 for Mode: ALT2.
01 - Selecting Pad: EIM_D29 for Mode: ALT2.
10 - Selecting Pad: PATA_INTRQ for Mode: ALT3.
11 - Selecting Pad: PATA_DIOR for Mode: ALT3.
> #define MX53_PAD_EIM_D29__IPU_DISPB0_SER_RS 0x150 0x498 0x000 0x3 0x0
> #define MX53_PAD_EIM_D29__CSPI_SS0 0x150 0x498 0x78c 0x4 0x2
> #define MX53_PAD_EIM_D29__IPU_DI1_PIN15 0x150 0x498 0x000 0x5 0x0
> --
> 1.9.1
>
>
> _______________________________________________
> linux-arm-kernel mailing list
> linux-arm-kernel at lists.infradead.org
> http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: [PATCH] ARM: dts: imx53: fix EIM_D27/29 pad UART2 configuration
@ 2015-12-07 13:48 ` linux-kernel-dev
0 siblings, 0 replies; 7+ messages in thread
From: linux-kernel-dev @ 2015-12-07 13:48 UTC (permalink / raw)
To: shawnguo, kernel
Cc: robh+dt, pawel.moll, mark.rutland, ijc+devicetree, galak, linux,
linux-arm-kernel, devicetree, linux-kernel, Patrick Brünn
From: Patrick Brünn <p.bruenn@beckhoff.com>
On Tue, Dec 1, 2015 at 20:52:25 PST, shawnguo@kernel.org wrote:
> On Thu, Nov 26, 2015 at 11:59:15AM +0100, linux-kernel-dev@beckhoff.com wrote:
>> MX53_PAD_EIM_D27__UART2_RXD_MUX and MX53_PAD_EIM_D29__UART2_RTS input_val must be configured as 0 instead of 1 to have UART2 muxed on EIM pins working
>
> I'm not sure why you think that. But the i.MX53 Reference Manual in my hands doesn't agree with that. It says ...
>>
>> Signed-off-by: Patrick Brünn <p.bruenn@beckhoff.com>
>> ---
>> arch/arm/boot/dts/imx53-pinfunc.h | 4 ++--
>> 1 file changed, 2 insertions(+), 2 deletions(-)
>>
>> diff --git a/arch/arm/boot/dts/imx53-pinfunc.h b/arch/arm/boot/dts/imx53-pinfunc.h
>> index aec406b..a4c973d 100644
>> --- a/arch/arm/boot/dts/imx53-pinfunc.h
>> +++ b/arch/arm/boot/dts/imx53-pinfunc.h
>> @@ -532,7 +532,7 @@
>> #define MX53_PAD_EIM_D26__IPU_DISP1_DAT_22 0x144 0x48c 0x000 0x7 0x0
>> #define MX53_PAD_EIM_D27__EMI_WEIM_D_27 0x148 0x490 0x000 0x0 0x0
>> #define MX53_PAD_EIM_D27__GPIO3_27 0x148 0x490 0x000 0x1 0x0
>> -#define MX53_PAD_EIM_D27__UART2_RXD_MUX 0x148 0x490 0x880 0x2 0x1
>> +#define MX53_PAD_EIM_D27__UART2_RXD_MUX 0x148 0x490 0x880 0x2 0x0
>
> IOMUXC_UART2_IPP_UART_RXD_MUX_SELECT_INPUT DAISY field descriptions
>
> 000 - Selecting Pad: EIM_D26 for Mode: ALT2.
> 001 - Selecting Pad: EIM_D27 for Mode: ALT2.
> 010 - Selecting Pad: PATA_DMARQ for Mode: ALT3.
> 011 - Selecting Pad: PATA_BUFFER_EN for Mode: ALT3.
> 100 - Selecting Pad: GPIO_7 for Mode: ALT4.
> 101 - Selecting Pad: GPIO_8 for Mode: ALT4.
Thanks for the hint. I had a closer look at the reference manual and our schematics. Of course, you are right. The defines are good as they are, my patch was stupid.
I just realized RXD and TXD are inverted on our hardware (CX9020 Embedded PC). Which requires a pinmux configuration like this:
EIM_D26->UART2_RXD
EIM_D27->UART2_TXD
EIM_D28->UART2_RTS
EIM_D29->UART2_CTS
In my opinion the reference manual allows such a configuration, but I am not sure if it's appropriate for mainline.
Would you accept a patch like the following:
>8------------------------------------------------------8<
ARM: dts: imx53: add EIM pad config for UART2
Add another pinmux configuration to mux UART2 on EIM pads:
EIM_D26->UART2_RXD
EIM_D27->UART2_TXD
EIM_D28->UART2_RTS
EIM_D29->UART2_CTS
Signed-off-by: Patrick Brünn <p.bruenn@beckhoff.com>
---
arch/arm/boot/dts/imx53-pinfunc.h | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/arch/arm/boot/dts/imx53-pinfunc.h b/arch/arm/boot/dts/imx53-pinfunc.h
index aec406b..7d26d16 100644
--- a/arch/arm/boot/dts/imx53-pinfunc.h
+++ b/arch/arm/boot/dts/imx53-pinfunc.h
@@ -525,6 +525,7 @@
#define MX53_PAD_EIM_D26__EMI_WEIM_D_26 0x144 0x48c 0x000 0x0 0x0
#define MX53_PAD_EIM_D26__GPIO3_26 0x144 0x48c 0x000 0x1 0x0
#define MX53_PAD_EIM_D26__UART2_TXD_MUX 0x144 0x48c 0x000 0x2 0x0
+#define MX53_PAD_EIM_D26__UART2_RXD_MUX 0x144 0x48c 0x880 0x2 0x0
#define MX53_PAD_EIM_D26__FIRI_RXD 0x144 0x48c 0x80c 0x3 0x0
#define MX53_PAD_EIM_D26__IPU_CSI0_D_1 0x144 0x48c 0x000 0x4 0x0
#define MX53_PAD_EIM_D26__IPU_DI1_PIN11 0x144 0x48c 0x000 0x5 0x0
@@ -532,6 +533,7 @@
#define MX53_PAD_EIM_D26__IPU_DISP1_DAT_22 0x144 0x48c 0x000 0x7 0x0
#define MX53_PAD_EIM_D27__EMI_WEIM_D_27 0x148 0x490 0x000 0x0 0x0
#define MX53_PAD_EIM_D27__GPIO3_27 0x148 0x490 0x000 0x1 0x0
+#define MX53_PAD_EIM_D27__UART2_TXD_MUX 0x148 0x490 0x000 0x2 0x0
#define MX53_PAD_EIM_D27__UART2_RXD_MUX 0x148 0x490 0x880 0x2 0x1
#define MX53_PAD_EIM_D27__FIRI_TXD 0x148 0x490 0x000 0x3 0x0
#define MX53_PAD_EIM_D27__IPU_CSI0_D_0 0x148 0x490 0x000 0x4 0x0
@@ -541,6 +543,7 @@
#define MX53_PAD_EIM_D28__EMI_WEIM_D_28 0x14c 0x494 0x000 0x0 0x0
#define MX53_PAD_EIM_D28__GPIO3_28 0x14c 0x494 0x000 0x1 0x0
#define MX53_PAD_EIM_D28__UART2_CTS 0x14c 0x494 0x000 0x2 0x0
+#define MX53_PAD_EIM_D28__UART2_RTS 0x14c 0x494 0x87c 0x2 0x0
#define MX53_PAD_EIM_D28__IPU_DISPB0_SER_DIO 0x14c 0x494 0x82c 0x3 0x1
#define MX53_PAD_EIM_D28__CSPI_MOSI 0x14c 0x494 0x788 0x4 0x1
#define MX53_PAD_EIM_D28__I2C1_SDA 0x14c 0x494 0x818 0x5 0x1
@@ -548,6 +551,7 @@
#define MX53_PAD_EIM_D28__IPU_DI0_PIN13 0x14c 0x494 0x000 0x7 0x0
#define MX53_PAD_EIM_D29__EMI_WEIM_D_29 0x150 0x498 0x000 0x0 0x0
#define MX53_PAD_EIM_D29__GPIO3_29 0x150 0x498 0x000 0x1 0x0
+#define MX53_PAD_EIM_D29__UART2_CTS 0x150 0x498 0x000 0x2 0x0
#define MX53_PAD_EIM_D29__UART2_RTS 0x150 0x498 0x87c 0x2 0x1
#define MX53_PAD_EIM_D29__IPU_DISPB0_SER_RS 0x150 0x498 0x000 0x3 0x0
#define MX53_PAD_EIM_D29__CSPI_SS0 0x150 0x498 0x78c 0x4 0x2
--
1.9.1
^ permalink raw reply related [flat|nested] 7+ messages in thread
* Re: [PATCH] ARM: dts: imx53: fix EIM_D27/29 pad UART2 configuration
@ 2015-12-07 13:48 ` linux-kernel-dev
0 siblings, 0 replies; 7+ messages in thread
From: linux-kernel-dev @ 2015-12-07 13:48 UTC (permalink / raw)
To: shawnguo, kernel
Cc: robh+dt, pawel.moll, mark.rutland, ijc+devicetree, galak, linux,
linux-arm-kernel, devicetree, linux-kernel, Patrick Brünn
From: Patrick Brünn <p.bruenn@beckhoff.com>
On Tue, Dec 1, 2015 at 20:52:25 PST, shawnguo@kernel.org wrote:
> On Thu, Nov 26, 2015 at 11:59:15AM +0100, linux-kernel-dev@beckhoff.com wrote:
>> MX53_PAD_EIM_D27__UART2_RXD_MUX and MX53_PAD_EIM_D29__UART2_RTS input_val must be configured as 0 instead of 1 to have UART2 muxed on EIM pins working
>
> I'm not sure why you think that. But the i.MX53 Reference Manual in my hands doesn't agree with that. It says ...
>>
>> Signed-off-by: Patrick Brünn <p.bruenn@beckhoff.com>
>> ---
>> arch/arm/boot/dts/imx53-pinfunc.h | 4 ++--
>> 1 file changed, 2 insertions(+), 2 deletions(-)
>>
>> diff --git a/arch/arm/boot/dts/imx53-pinfunc.h b/arch/arm/boot/dts/imx53-pinfunc.h
>> index aec406b..a4c973d 100644
>> --- a/arch/arm/boot/dts/imx53-pinfunc.h
>> +++ b/arch/arm/boot/dts/imx53-pinfunc.h
>> @@ -532,7 +532,7 @@
>> #define MX53_PAD_EIM_D26__IPU_DISP1_DAT_22 0x144 0x48c 0x000 0x7 0x0
>> #define MX53_PAD_EIM_D27__EMI_WEIM_D_27 0x148 0x490 0x000 0x0 0x0
>> #define MX53_PAD_EIM_D27__GPIO3_27 0x148 0x490 0x000 0x1 0x0
>> -#define MX53_PAD_EIM_D27__UART2_RXD_MUX 0x148 0x490 0x880 0x2 0x1
>> +#define MX53_PAD_EIM_D27__UART2_RXD_MUX 0x148 0x490 0x880 0x2 0x0
>
> IOMUXC_UART2_IPP_UART_RXD_MUX_SELECT_INPUT DAISY field descriptions
>
> 000 - Selecting Pad: EIM_D26 for Mode: ALT2.
> 001 - Selecting Pad: EIM_D27 for Mode: ALT2.
> 010 - Selecting Pad: PATA_DMARQ for Mode: ALT3.
> 011 - Selecting Pad: PATA_BUFFER_EN for Mode: ALT3.
> 100 - Selecting Pad: GPIO_7 for Mode: ALT4.
> 101 - Selecting Pad: GPIO_8 for Mode: ALT4.
Thanks for the hint. I had a closer look at the reference manual and our schematics. Of course, you are right. The defines are good as they are, my patch was stupid.
I just realized RXD and TXD are inverted on our hardware (CX9020 Embedded PC). Which requires a pinmux configuration like this:
EIM_D26->UART2_RXD
EIM_D27->UART2_TXD
EIM_D28->UART2_RTS
EIM_D29->UART2_CTS
In my opinion the reference manual allows such a configuration, but I am not sure if it's appropriate for mainline.
Would you accept a patch like the following:
>8------------------------------------------------------8<
ARM: dts: imx53: add EIM pad config for UART2
Add another pinmux configuration to mux UART2 on EIM pads:
EIM_D26->UART2_RXD
EIM_D27->UART2_TXD
EIM_D28->UART2_RTS
EIM_D29->UART2_CTS
Signed-off-by: Patrick Brünn <p.bruenn@beckhoff.com>
---
arch/arm/boot/dts/imx53-pinfunc.h | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/arch/arm/boot/dts/imx53-pinfunc.h b/arch/arm/boot/dts/imx53-pinfunc.h
index aec406b..7d26d16 100644
--- a/arch/arm/boot/dts/imx53-pinfunc.h
+++ b/arch/arm/boot/dts/imx53-pinfunc.h
@@ -525,6 +525,7 @@
#define MX53_PAD_EIM_D26__EMI_WEIM_D_26 0x144 0x48c 0x000 0x0 0x0
#define MX53_PAD_EIM_D26__GPIO3_26 0x144 0x48c 0x000 0x1 0x0
#define MX53_PAD_EIM_D26__UART2_TXD_MUX 0x144 0x48c 0x000 0x2 0x0
+#define MX53_PAD_EIM_D26__UART2_RXD_MUX 0x144 0x48c 0x880 0x2 0x0
#define MX53_PAD_EIM_D26__FIRI_RXD 0x144 0x48c 0x80c 0x3 0x0
#define MX53_PAD_EIM_D26__IPU_CSI0_D_1 0x144 0x48c 0x000 0x4 0x0
#define MX53_PAD_EIM_D26__IPU_DI1_PIN11 0x144 0x48c 0x000 0x5 0x0
@@ -532,6 +533,7 @@
#define MX53_PAD_EIM_D26__IPU_DISP1_DAT_22 0x144 0x48c 0x000 0x7 0x0
#define MX53_PAD_EIM_D27__EMI_WEIM_D_27 0x148 0x490 0x000 0x0 0x0
#define MX53_PAD_EIM_D27__GPIO3_27 0x148 0x490 0x000 0x1 0x0
+#define MX53_PAD_EIM_D27__UART2_TXD_MUX 0x148 0x490 0x000 0x2 0x0
#define MX53_PAD_EIM_D27__UART2_RXD_MUX 0x148 0x490 0x880 0x2 0x1
#define MX53_PAD_EIM_D27__FIRI_TXD 0x148 0x490 0x000 0x3 0x0
#define MX53_PAD_EIM_D27__IPU_CSI0_D_0 0x148 0x490 0x000 0x4 0x0
@@ -541,6 +543,7 @@
#define MX53_PAD_EIM_D28__EMI_WEIM_D_28 0x14c 0x494 0x000 0x0 0x0
#define MX53_PAD_EIM_D28__GPIO3_28 0x14c 0x494 0x000 0x1 0x0
#define MX53_PAD_EIM_D28__UART2_CTS 0x14c 0x494 0x000 0x2 0x0
+#define MX53_PAD_EIM_D28__UART2_RTS 0x14c 0x494 0x87c 0x2 0x0
#define MX53_PAD_EIM_D28__IPU_DISPB0_SER_DIO 0x14c 0x494 0x82c 0x3 0x1
#define MX53_PAD_EIM_D28__CSPI_MOSI 0x14c 0x494 0x788 0x4 0x1
#define MX53_PAD_EIM_D28__I2C1_SDA 0x14c 0x494 0x818 0x5 0x1
@@ -548,6 +551,7 @@
#define MX53_PAD_EIM_D28__IPU_DI0_PIN13 0x14c 0x494 0x000 0x7 0x0
#define MX53_PAD_EIM_D29__EMI_WEIM_D_29 0x150 0x498 0x000 0x0 0x0
#define MX53_PAD_EIM_D29__GPIO3_29 0x150 0x498 0x000 0x1 0x0
+#define MX53_PAD_EIM_D29__UART2_CTS 0x150 0x498 0x000 0x2 0x0
#define MX53_PAD_EIM_D29__UART2_RTS 0x150 0x498 0x87c 0x2 0x1
#define MX53_PAD_EIM_D29__IPU_DISPB0_SER_RS 0x150 0x498 0x000 0x3 0x0
#define MX53_PAD_EIM_D29__CSPI_SS0 0x150 0x498 0x78c 0x4 0x2
--
1.9.1
^ permalink raw reply related [flat|nested] 7+ messages in thread
* [PATCH] ARM: dts: imx53: fix EIM_D27/29 pad UART2 configuration
@ 2015-12-11 11:04 ` Shawn Guo
0 siblings, 0 replies; 7+ messages in thread
From: Shawn Guo @ 2015-12-11 11:04 UTC (permalink / raw)
To: linux-arm-kernel
On Mon, Dec 07, 2015 at 02:48:04PM +0100, linux-kernel-dev at beckhoff.com wrote:
> From: Patrick Br?nn <p.bruenn@beckhoff.com>
>
> On Tue, Dec 1, 2015 at 20:52:25 PST, shawnguo at kernel.org wrote:
> > On Thu, Nov 26, 2015 at 11:59:15AM +0100, linux-kernel-dev at beckhoff.com wrote:
> >> MX53_PAD_EIM_D27__UART2_RXD_MUX and MX53_PAD_EIM_D29__UART2_RTS input_val must be configured as 0 instead of 1 to have UART2 muxed on EIM pins working
> >
> > I'm not sure why you think that. But the i.MX53 Reference Manual in my hands doesn't agree with that. It says ...
> >>
> >> Signed-off-by: Patrick Br?nn <p.bruenn@beckhoff.com>
> >> ---
> >> arch/arm/boot/dts/imx53-pinfunc.h | 4 ++--
> >> 1 file changed, 2 insertions(+), 2 deletions(-)
> >>
> >> diff --git a/arch/arm/boot/dts/imx53-pinfunc.h b/arch/arm/boot/dts/imx53-pinfunc.h
> >> index aec406b..a4c973d 100644
> >> --- a/arch/arm/boot/dts/imx53-pinfunc.h
> >> +++ b/arch/arm/boot/dts/imx53-pinfunc.h
> >> @@ -532,7 +532,7 @@
> >> #define MX53_PAD_EIM_D26__IPU_DISP1_DAT_22 0x144 0x48c 0x000 0x7 0x0
> >> #define MX53_PAD_EIM_D27__EMI_WEIM_D_27 0x148 0x490 0x000 0x0 0x0
> >> #define MX53_PAD_EIM_D27__GPIO3_27 0x148 0x490 0x000 0x1 0x0
> >> -#define MX53_PAD_EIM_D27__UART2_RXD_MUX 0x148 0x490 0x880 0x2 0x1
> >> +#define MX53_PAD_EIM_D27__UART2_RXD_MUX 0x148 0x490 0x880 0x2 0x0
> >
> > IOMUXC_UART2_IPP_UART_RXD_MUX_SELECT_INPUT DAISY field descriptions
> >
> > 000 - Selecting Pad: EIM_D26 for Mode: ALT2.
> > 001 - Selecting Pad: EIM_D27 for Mode: ALT2.
> > 010 - Selecting Pad: PATA_DMARQ for Mode: ALT3.
> > 011 - Selecting Pad: PATA_BUFFER_EN for Mode: ALT3.
> > 100 - Selecting Pad: GPIO_7 for Mode: ALT4.
> > 101 - Selecting Pad: GPIO_8 for Mode: ALT4.
>
>
> Thanks for the hint. I had a closer look at the reference manual and our schematics. Of course, you are right. The defines are good as they are, my patch was stupid.
>
> I just realized RXD and TXD are inverted on our hardware (CX9020 Embedded PC). Which requires a pinmux configuration like this:
> EIM_D26->UART2_RXD
> EIM_D27->UART2_TXD
> EIM_D28->UART2_RTS
> EIM_D29->UART2_CTS
>
> In my opinion the reference manual allows such a configuration, but I am not sure if it's appropriate for mainline.
>
> Would you accept a patch like the following:
No, I'm not going to accept it. But it doesn't mean you cannot define
and use it in your own board DTS file.
Shawn
>
> >8------------------------------------------------------8<
> ARM: dts: imx53: add EIM pad config for UART2
>
> Add another pinmux configuration to mux UART2 on EIM pads:
>
> EIM_D26->UART2_RXD
> EIM_D27->UART2_TXD
> EIM_D28->UART2_RTS
> EIM_D29->UART2_CTS
>
> Signed-off-by: Patrick Br?nn <p.bruenn@beckhoff.com>
> ---
> arch/arm/boot/dts/imx53-pinfunc.h | 4 ++++
> 1 file changed, 4 insertions(+)
>
> diff --git a/arch/arm/boot/dts/imx53-pinfunc.h b/arch/arm/boot/dts/imx53-pinfunc.h
> index aec406b..7d26d16 100644
> --- a/arch/arm/boot/dts/imx53-pinfunc.h
> +++ b/arch/arm/boot/dts/imx53-pinfunc.h
> @@ -525,6 +525,7 @@
> #define MX53_PAD_EIM_D26__EMI_WEIM_D_26 0x144 0x48c 0x000 0x0 0x0
> #define MX53_PAD_EIM_D26__GPIO3_26 0x144 0x48c 0x000 0x1 0x0
> #define MX53_PAD_EIM_D26__UART2_TXD_MUX 0x144 0x48c 0x000 0x2 0x0
> +#define MX53_PAD_EIM_D26__UART2_RXD_MUX 0x144 0x48c 0x880 0x2 0x0
> #define MX53_PAD_EIM_D26__FIRI_RXD 0x144 0x48c 0x80c 0x3 0x0
> #define MX53_PAD_EIM_D26__IPU_CSI0_D_1 0x144 0x48c 0x000 0x4 0x0
> #define MX53_PAD_EIM_D26__IPU_DI1_PIN11 0x144 0x48c 0x000 0x5 0x0
> @@ -532,6 +533,7 @@
> #define MX53_PAD_EIM_D26__IPU_DISP1_DAT_22 0x144 0x48c 0x000 0x7 0x0
> #define MX53_PAD_EIM_D27__EMI_WEIM_D_27 0x148 0x490 0x000 0x0 0x0
> #define MX53_PAD_EIM_D27__GPIO3_27 0x148 0x490 0x000 0x1 0x0
> +#define MX53_PAD_EIM_D27__UART2_TXD_MUX 0x148 0x490 0x000 0x2 0x0
> #define MX53_PAD_EIM_D27__UART2_RXD_MUX 0x148 0x490 0x880 0x2 0x1
> #define MX53_PAD_EIM_D27__FIRI_TXD 0x148 0x490 0x000 0x3 0x0
> #define MX53_PAD_EIM_D27__IPU_CSI0_D_0 0x148 0x490 0x000 0x4 0x0
> @@ -541,6 +543,7 @@
> #define MX53_PAD_EIM_D28__EMI_WEIM_D_28 0x14c 0x494 0x000 0x0 0x0
> #define MX53_PAD_EIM_D28__GPIO3_28 0x14c 0x494 0x000 0x1 0x0
> #define MX53_PAD_EIM_D28__UART2_CTS 0x14c 0x494 0x000 0x2 0x0
> +#define MX53_PAD_EIM_D28__UART2_RTS 0x14c 0x494 0x87c 0x2 0x0
> #define MX53_PAD_EIM_D28__IPU_DISPB0_SER_DIO 0x14c 0x494 0x82c 0x3 0x1
> #define MX53_PAD_EIM_D28__CSPI_MOSI 0x14c 0x494 0x788 0x4 0x1
> #define MX53_PAD_EIM_D28__I2C1_SDA 0x14c 0x494 0x818 0x5 0x1
> @@ -548,6 +551,7 @@
> #define MX53_PAD_EIM_D28__IPU_DI0_PIN13 0x14c 0x494 0x000 0x7 0x0
> #define MX53_PAD_EIM_D29__EMI_WEIM_D_29 0x150 0x498 0x000 0x0 0x0
> #define MX53_PAD_EIM_D29__GPIO3_29 0x150 0x498 0x000 0x1 0x0
> +#define MX53_PAD_EIM_D29__UART2_CTS 0x150 0x498 0x000 0x2 0x0
> #define MX53_PAD_EIM_D29__UART2_RTS 0x150 0x498 0x87c 0x2 0x1
> #define MX53_PAD_EIM_D29__IPU_DISPB0_SER_RS 0x150 0x498 0x000 0x3 0x0
> #define MX53_PAD_EIM_D29__CSPI_SS0 0x150 0x498 0x78c 0x4 0x2
> --
> 1.9.1
>
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: [PATCH] ARM: dts: imx53: fix EIM_D27/29 pad UART2 configuration
@ 2015-12-11 11:04 ` Shawn Guo
0 siblings, 0 replies; 7+ messages in thread
From: Shawn Guo @ 2015-12-11 11:04 UTC (permalink / raw)
To: linux-kernel-dev
Cc: kernel, robh+dt, pawel.moll, mark.rutland, ijc+devicetree, galak,
linux, linux-arm-kernel, devicetree, linux-kernel,
Patrick Brünn
On Mon, Dec 07, 2015 at 02:48:04PM +0100, linux-kernel-dev@beckhoff.com wrote:
> From: Patrick Brünn <p.bruenn@beckhoff.com>
>
> On Tue, Dec 1, 2015 at 20:52:25 PST, shawnguo@kernel.org wrote:
> > On Thu, Nov 26, 2015 at 11:59:15AM +0100, linux-kernel-dev@beckhoff.com wrote:
> >> MX53_PAD_EIM_D27__UART2_RXD_MUX and MX53_PAD_EIM_D29__UART2_RTS input_val must be configured as 0 instead of 1 to have UART2 muxed on EIM pins working
> >
> > I'm not sure why you think that. But the i.MX53 Reference Manual in my hands doesn't agree with that. It says ...
> >>
> >> Signed-off-by: Patrick Brünn <p.bruenn@beckhoff.com>
> >> ---
> >> arch/arm/boot/dts/imx53-pinfunc.h | 4 ++--
> >> 1 file changed, 2 insertions(+), 2 deletions(-)
> >>
> >> diff --git a/arch/arm/boot/dts/imx53-pinfunc.h b/arch/arm/boot/dts/imx53-pinfunc.h
> >> index aec406b..a4c973d 100644
> >> --- a/arch/arm/boot/dts/imx53-pinfunc.h
> >> +++ b/arch/arm/boot/dts/imx53-pinfunc.h
> >> @@ -532,7 +532,7 @@
> >> #define MX53_PAD_EIM_D26__IPU_DISP1_DAT_22 0x144 0x48c 0x000 0x7 0x0
> >> #define MX53_PAD_EIM_D27__EMI_WEIM_D_27 0x148 0x490 0x000 0x0 0x0
> >> #define MX53_PAD_EIM_D27__GPIO3_27 0x148 0x490 0x000 0x1 0x0
> >> -#define MX53_PAD_EIM_D27__UART2_RXD_MUX 0x148 0x490 0x880 0x2 0x1
> >> +#define MX53_PAD_EIM_D27__UART2_RXD_MUX 0x148 0x490 0x880 0x2 0x0
> >
> > IOMUXC_UART2_IPP_UART_RXD_MUX_SELECT_INPUT DAISY field descriptions
> >
> > 000 - Selecting Pad: EIM_D26 for Mode: ALT2.
> > 001 - Selecting Pad: EIM_D27 for Mode: ALT2.
> > 010 - Selecting Pad: PATA_DMARQ for Mode: ALT3.
> > 011 - Selecting Pad: PATA_BUFFER_EN for Mode: ALT3.
> > 100 - Selecting Pad: GPIO_7 for Mode: ALT4.
> > 101 - Selecting Pad: GPIO_8 for Mode: ALT4.
>
>
> Thanks for the hint. I had a closer look at the reference manual and our schematics. Of course, you are right. The defines are good as they are, my patch was stupid.
>
> I just realized RXD and TXD are inverted on our hardware (CX9020 Embedded PC). Which requires a pinmux configuration like this:
> EIM_D26->UART2_RXD
> EIM_D27->UART2_TXD
> EIM_D28->UART2_RTS
> EIM_D29->UART2_CTS
>
> In my opinion the reference manual allows such a configuration, but I am not sure if it's appropriate for mainline.
>
> Would you accept a patch like the following:
No, I'm not going to accept it. But it doesn't mean you cannot define
and use it in your own board DTS file.
Shawn
>
> >8------------------------------------------------------8<
> ARM: dts: imx53: add EIM pad config for UART2
>
> Add another pinmux configuration to mux UART2 on EIM pads:
>
> EIM_D26->UART2_RXD
> EIM_D27->UART2_TXD
> EIM_D28->UART2_RTS
> EIM_D29->UART2_CTS
>
> Signed-off-by: Patrick Brünn <p.bruenn@beckhoff.com>
> ---
> arch/arm/boot/dts/imx53-pinfunc.h | 4 ++++
> 1 file changed, 4 insertions(+)
>
> diff --git a/arch/arm/boot/dts/imx53-pinfunc.h b/arch/arm/boot/dts/imx53-pinfunc.h
> index aec406b..7d26d16 100644
> --- a/arch/arm/boot/dts/imx53-pinfunc.h
> +++ b/arch/arm/boot/dts/imx53-pinfunc.h
> @@ -525,6 +525,7 @@
> #define MX53_PAD_EIM_D26__EMI_WEIM_D_26 0x144 0x48c 0x000 0x0 0x0
> #define MX53_PAD_EIM_D26__GPIO3_26 0x144 0x48c 0x000 0x1 0x0
> #define MX53_PAD_EIM_D26__UART2_TXD_MUX 0x144 0x48c 0x000 0x2 0x0
> +#define MX53_PAD_EIM_D26__UART2_RXD_MUX 0x144 0x48c 0x880 0x2 0x0
> #define MX53_PAD_EIM_D26__FIRI_RXD 0x144 0x48c 0x80c 0x3 0x0
> #define MX53_PAD_EIM_D26__IPU_CSI0_D_1 0x144 0x48c 0x000 0x4 0x0
> #define MX53_PAD_EIM_D26__IPU_DI1_PIN11 0x144 0x48c 0x000 0x5 0x0
> @@ -532,6 +533,7 @@
> #define MX53_PAD_EIM_D26__IPU_DISP1_DAT_22 0x144 0x48c 0x000 0x7 0x0
> #define MX53_PAD_EIM_D27__EMI_WEIM_D_27 0x148 0x490 0x000 0x0 0x0
> #define MX53_PAD_EIM_D27__GPIO3_27 0x148 0x490 0x000 0x1 0x0
> +#define MX53_PAD_EIM_D27__UART2_TXD_MUX 0x148 0x490 0x000 0x2 0x0
> #define MX53_PAD_EIM_D27__UART2_RXD_MUX 0x148 0x490 0x880 0x2 0x1
> #define MX53_PAD_EIM_D27__FIRI_TXD 0x148 0x490 0x000 0x3 0x0
> #define MX53_PAD_EIM_D27__IPU_CSI0_D_0 0x148 0x490 0x000 0x4 0x0
> @@ -541,6 +543,7 @@
> #define MX53_PAD_EIM_D28__EMI_WEIM_D_28 0x14c 0x494 0x000 0x0 0x0
> #define MX53_PAD_EIM_D28__GPIO3_28 0x14c 0x494 0x000 0x1 0x0
> #define MX53_PAD_EIM_D28__UART2_CTS 0x14c 0x494 0x000 0x2 0x0
> +#define MX53_PAD_EIM_D28__UART2_RTS 0x14c 0x494 0x87c 0x2 0x0
> #define MX53_PAD_EIM_D28__IPU_DISPB0_SER_DIO 0x14c 0x494 0x82c 0x3 0x1
> #define MX53_PAD_EIM_D28__CSPI_MOSI 0x14c 0x494 0x788 0x4 0x1
> #define MX53_PAD_EIM_D28__I2C1_SDA 0x14c 0x494 0x818 0x5 0x1
> @@ -548,6 +551,7 @@
> #define MX53_PAD_EIM_D28__IPU_DI0_PIN13 0x14c 0x494 0x000 0x7 0x0
> #define MX53_PAD_EIM_D29__EMI_WEIM_D_29 0x150 0x498 0x000 0x0 0x0
> #define MX53_PAD_EIM_D29__GPIO3_29 0x150 0x498 0x000 0x1 0x0
> +#define MX53_PAD_EIM_D29__UART2_CTS 0x150 0x498 0x000 0x2 0x0
> #define MX53_PAD_EIM_D29__UART2_RTS 0x150 0x498 0x87c 0x2 0x1
> #define MX53_PAD_EIM_D29__IPU_DISPB0_SER_RS 0x150 0x498 0x000 0x3 0x0
> #define MX53_PAD_EIM_D29__CSPI_SS0 0x150 0x498 0x78c 0x4 0x2
> --
> 1.9.1
>
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: [PATCH] ARM: dts: imx53: fix EIM_D27/29 pad UART2 configuration
@ 2015-12-11 11:04 ` Shawn Guo
0 siblings, 0 replies; 7+ messages in thread
From: Shawn Guo @ 2015-12-11 11:04 UTC (permalink / raw)
To: linux-kernel-dev-QonKdJ6Bx35Wk0Htik3J/w
Cc: kernel-bIcnvbaLZ9MEGnE8C9+IrQ, robh+dt-DgEjT+Ai2ygdnm+yROfE0A,
pawel.moll-5wv7dgnIgG8, mark.rutland-5wv7dgnIgG8,
ijc+devicetree-KcIKpvwj1kUDXYZnReoRVg,
galak-sgV2jX0FEOL9JmXXK+q4OQ, linux-lFZ/pmaqli7XmaaqVzeoHQ,
linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r,
devicetree-u79uwXL29TY76Z2rM5mHXA,
linux-kernel-u79uwXL29TY76Z2rM5mHXA, Patrick Brünn
On Mon, Dec 07, 2015 at 02:48:04PM +0100, linux-kernel-dev-QonKdJ6Bx35Wk0Htik3J/w@public.gmane.org wrote:
> From: Patrick Brünn <p.bruenn-QonKdJ6Bx35Wk0Htik3J/w@public.gmane.org>
>
> On Tue, Dec 1, 2015 at 20:52:25 PST, shawnguo-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org wrote:
> > On Thu, Nov 26, 2015 at 11:59:15AM +0100, linux-kernel-dev@beckhoff.com wrote:
> >> MX53_PAD_EIM_D27__UART2_RXD_MUX and MX53_PAD_EIM_D29__UART2_RTS input_val must be configured as 0 instead of 1 to have UART2 muxed on EIM pins working
> >
> > I'm not sure why you think that. But the i.MX53 Reference Manual in my hands doesn't agree with that. It says ...
> >>
> >> Signed-off-by: Patrick Brünn <p.bruenn-QonKdJ6Bx35Wk0Htik3J/w@public.gmane.org>
> >> ---
> >> arch/arm/boot/dts/imx53-pinfunc.h | 4 ++--
> >> 1 file changed, 2 insertions(+), 2 deletions(-)
> >>
> >> diff --git a/arch/arm/boot/dts/imx53-pinfunc.h b/arch/arm/boot/dts/imx53-pinfunc.h
> >> index aec406b..a4c973d 100644
> >> --- a/arch/arm/boot/dts/imx53-pinfunc.h
> >> +++ b/arch/arm/boot/dts/imx53-pinfunc.h
> >> @@ -532,7 +532,7 @@
> >> #define MX53_PAD_EIM_D26__IPU_DISP1_DAT_22 0x144 0x48c 0x000 0x7 0x0
> >> #define MX53_PAD_EIM_D27__EMI_WEIM_D_27 0x148 0x490 0x000 0x0 0x0
> >> #define MX53_PAD_EIM_D27__GPIO3_27 0x148 0x490 0x000 0x1 0x0
> >> -#define MX53_PAD_EIM_D27__UART2_RXD_MUX 0x148 0x490 0x880 0x2 0x1
> >> +#define MX53_PAD_EIM_D27__UART2_RXD_MUX 0x148 0x490 0x880 0x2 0x0
> >
> > IOMUXC_UART2_IPP_UART_RXD_MUX_SELECT_INPUT DAISY field descriptions
> >
> > 000 - Selecting Pad: EIM_D26 for Mode: ALT2.
> > 001 - Selecting Pad: EIM_D27 for Mode: ALT2.
> > 010 - Selecting Pad: PATA_DMARQ for Mode: ALT3.
> > 011 - Selecting Pad: PATA_BUFFER_EN for Mode: ALT3.
> > 100 - Selecting Pad: GPIO_7 for Mode: ALT4.
> > 101 - Selecting Pad: GPIO_8 for Mode: ALT4.
>
>
> Thanks for the hint. I had a closer look at the reference manual and our schematics. Of course, you are right. The defines are good as they are, my patch was stupid.
>
> I just realized RXD and TXD are inverted on our hardware (CX9020 Embedded PC). Which requires a pinmux configuration like this:
> EIM_D26->UART2_RXD
> EIM_D27->UART2_TXD
> EIM_D28->UART2_RTS
> EIM_D29->UART2_CTS
>
> In my opinion the reference manual allows such a configuration, but I am not sure if it's appropriate for mainline.
>
> Would you accept a patch like the following:
No, I'm not going to accept it. But it doesn't mean you cannot define
and use it in your own board DTS file.
Shawn
>
> >8------------------------------------------------------8<
> ARM: dts: imx53: add EIM pad config for UART2
>
> Add another pinmux configuration to mux UART2 on EIM pads:
>
> EIM_D26->UART2_RXD
> EIM_D27->UART2_TXD
> EIM_D28->UART2_RTS
> EIM_D29->UART2_CTS
>
> Signed-off-by: Patrick Brünn <p.bruenn-QonKdJ6Bx35Wk0Htik3J/w@public.gmane.org>
> ---
> arch/arm/boot/dts/imx53-pinfunc.h | 4 ++++
> 1 file changed, 4 insertions(+)
>
> diff --git a/arch/arm/boot/dts/imx53-pinfunc.h b/arch/arm/boot/dts/imx53-pinfunc.h
> index aec406b..7d26d16 100644
> --- a/arch/arm/boot/dts/imx53-pinfunc.h
> +++ b/arch/arm/boot/dts/imx53-pinfunc.h
> @@ -525,6 +525,7 @@
> #define MX53_PAD_EIM_D26__EMI_WEIM_D_26 0x144 0x48c 0x000 0x0 0x0
> #define MX53_PAD_EIM_D26__GPIO3_26 0x144 0x48c 0x000 0x1 0x0
> #define MX53_PAD_EIM_D26__UART2_TXD_MUX 0x144 0x48c 0x000 0x2 0x0
> +#define MX53_PAD_EIM_D26__UART2_RXD_MUX 0x144 0x48c 0x880 0x2 0x0
> #define MX53_PAD_EIM_D26__FIRI_RXD 0x144 0x48c 0x80c 0x3 0x0
> #define MX53_PAD_EIM_D26__IPU_CSI0_D_1 0x144 0x48c 0x000 0x4 0x0
> #define MX53_PAD_EIM_D26__IPU_DI1_PIN11 0x144 0x48c 0x000 0x5 0x0
> @@ -532,6 +533,7 @@
> #define MX53_PAD_EIM_D26__IPU_DISP1_DAT_22 0x144 0x48c 0x000 0x7 0x0
> #define MX53_PAD_EIM_D27__EMI_WEIM_D_27 0x148 0x490 0x000 0x0 0x0
> #define MX53_PAD_EIM_D27__GPIO3_27 0x148 0x490 0x000 0x1 0x0
> +#define MX53_PAD_EIM_D27__UART2_TXD_MUX 0x148 0x490 0x000 0x2 0x0
> #define MX53_PAD_EIM_D27__UART2_RXD_MUX 0x148 0x490 0x880 0x2 0x1
> #define MX53_PAD_EIM_D27__FIRI_TXD 0x148 0x490 0x000 0x3 0x0
> #define MX53_PAD_EIM_D27__IPU_CSI0_D_0 0x148 0x490 0x000 0x4 0x0
> @@ -541,6 +543,7 @@
> #define MX53_PAD_EIM_D28__EMI_WEIM_D_28 0x14c 0x494 0x000 0x0 0x0
> #define MX53_PAD_EIM_D28__GPIO3_28 0x14c 0x494 0x000 0x1 0x0
> #define MX53_PAD_EIM_D28__UART2_CTS 0x14c 0x494 0x000 0x2 0x0
> +#define MX53_PAD_EIM_D28__UART2_RTS 0x14c 0x494 0x87c 0x2 0x0
> #define MX53_PAD_EIM_D28__IPU_DISPB0_SER_DIO 0x14c 0x494 0x82c 0x3 0x1
> #define MX53_PAD_EIM_D28__CSPI_MOSI 0x14c 0x494 0x788 0x4 0x1
> #define MX53_PAD_EIM_D28__I2C1_SDA 0x14c 0x494 0x818 0x5 0x1
> @@ -548,6 +551,7 @@
> #define MX53_PAD_EIM_D28__IPU_DI0_PIN13 0x14c 0x494 0x000 0x7 0x0
> #define MX53_PAD_EIM_D29__EMI_WEIM_D_29 0x150 0x498 0x000 0x0 0x0
> #define MX53_PAD_EIM_D29__GPIO3_29 0x150 0x498 0x000 0x1 0x0
> +#define MX53_PAD_EIM_D29__UART2_CTS 0x150 0x498 0x000 0x2 0x0
> #define MX53_PAD_EIM_D29__UART2_RTS 0x150 0x498 0x87c 0x2 0x1
> #define MX53_PAD_EIM_D29__IPU_DISPB0_SER_RS 0x150 0x498 0x000 0x3 0x0
> #define MX53_PAD_EIM_D29__CSPI_SS0 0x150 0x498 0x78c 0x4 0x2
> --
> 1.9.1
>
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end of thread, other threads:[~2015-12-11 11:04 UTC | newest]
Thread overview: 7+ messages (download: mbox.gz follow: Atom feed
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2015-11-26 10:59 [PATCH] ARM: dts: imx53: fix EIM_D27/29 pad UART2 configuration linux-kernel-dev at beckhoff.com
2015-12-02 6:52 ` Shawn Guo
-- strict thread matches above, loose matches on Subject: below --
2015-12-07 13:48 linux-kernel-dev
2015-12-07 13:48 ` linux-kernel-dev
2015-12-11 11:04 ` Shawn Guo
2015-12-11 11:04 ` Shawn Guo
2015-12-11 11:04 ` Shawn Guo
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