Thread (7 messages) 7 messages, 4 authors, 2018-04-18

[PATCH] ARM: dts: imx6ull: add UART5 input select register definition

STALE3090d

From: Stefan Wahren <hidden>
Date: 2018-03-29 15:35:02

Am 28.03.2018 um 00:45 schrieb Fabio Estevam:
On Tue, Mar 27, 2018 at 7:24 PM, Greg Ungerer [off-list ref] wrote:
quoted
The iMX6ULL UART5_RX_DATA_SELECT_INPUT DAISY Register has some different
bit definitions to that same register in the iMX6UL.

The bits for the iMX6UL:

000 CSI_DATA00_ALT8 ? Selecting Pad: CSI_DATA00 for Mode: ALT8
001 CSI_DATA01_ALT8 ? Selecting Pad: CSI_DATA01 for Mode: ALT8
010 GPIO1_IO04_ALT8 ? Selecting Pad: GPIO1_IO04 for Mode: ALT8
011 GPIO1_IO05_ALT8 ? Selecting Pad: GPIO1_IO05 for Mode: ALT
100 UART5_TX_DATA_ALT0 ? Selecting Pad: UART5_TX_DATA for Mode: ALT
101 UART5_RX_DATA_ALT0 ? Selecting Pad: UART5_RX_DATA for Mode: ALT

But for the iMX6ULL:

000 CSI_DATA00_ALT8 ? Selecting Pad: CSI_DATA00 for Mode: ALT8
001 CSI_DATA01_ALT8 ? Selecting Pad: CSI_DATA01 for Mode: ALT8
010 GPIO1_IO04_ALT8 ? Selecting Pad: GPIO1_IO04 for Mode: ALT8
011 GPIO1_IO05_ALT8 ? Selecting Pad: GPIO1_IO05 for Mode: ALT
100 UART1_TX_DATA_ALT9 ? Selecting Pad: UART1_TX_DATA for Mode: ALT9
101 UART1_RX_DATA_ALT9 ? Selecting Pad: UART1_RX_DATA for Mode: ALT9
110 UART5_TX_DATA_ALT0 ? Selecting Pad: UART5_TX_DATA for Mode: ALT0
111 UART5_RX_DATA_ALT0 ? Selecting Pad: UART5_RX_DATA for Mode: ALT0

Specifically for a board I am working on with the serial console on UART5
I need to be able to enable UART5_RX_DATA_ALT0 mode. There is no definition
for the iMX6ULL version of that in imx6ul-pinfunc.h or imx6ull-pinfunc.h.

Create a new definition specific to the iMX6ULL so that is settable.

Signed-off-by: Greg Ungerer <gerg@linux-m68k.org>
Reviewed-by: Fabio Estevam <redacted>
I'm okay with the second version of the patch, but i noticed that at 
least UART5_RTS_B_SELECT_INPUT is also affected.

The bits for the iMX6UL:

000 CSI_DATA03_ALT8 ? Selecting Pad: CSI_DATA03 for Mode: ALT8
001 GPIO1_IO08_ALT8 ? Selecting Pad: GPIO1_IO08 for Mode: ALT8
010 GPIO1_IO09_ALT8 ? Selecting Pad: GPIO1_IO09 for Mode: ALT8
011 ENET1_RX_EN_ALT1 ? Selecting Pad: ENET1_RX_EN for Mode: ALT1
100 ENET1_TX_DATA0_ALT1 ? Selecting Pad: ENET1_TX_DATA0 for Mode: ALT1
101 CSI_DATA02_ALT8 ? Selecting Pad: CSI_DATA02 for Mode: ALT8

But for the iMX6ULL:

000 CSI_DATA03_ALT8 ? Selecting Pad: CSI_DATA03 for Mode: ALT8
001 GPIO1_IO08_ALT8 ? Selecting Pad: GPIO1_IO08 for Mode: ALT8
010 GPIO1_IO09_ALT8 ? Selecting Pad: GPIO1_IO09 for Mode: ALT8
011 UART1_CTS_B_ALT9 ? Selecting Pad: UART1_CTS_B for Mode: ALT9
100 UART1_RTS_B_ALT9 ? Selecting Pad: UART1_RTS_B for Mode: ALT9
101 ENET1_RX_EN_ALT1 ? Selecting Pad: ENET1_RX_EN for Mode: ALT1
110 ENET1_TX_DATA0_ALT1 ? Selecting Pad: ENET1_TX_DATA0 for Mode: ALT1
111 CSI_DATA02_ALT8 ? Selecting Pad: CSI_DATA02 for Mode: ALT8

Comparing the datasheets isn't fun ...

Should i provide a patch for this or is there a easier way to figure out 
all the differences?

Best regards
Stefan
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