[U-Boot] [PATCH] armv8: ls1028ardb: enable DisplayPort Power support

Wen He wen.he_1 at nxp.com
Tue Jul 23 07:00:39 UTC 2019



> -----Original Message-----
> From: Wen He <wen.he_1 at nxp.com>
> Sent: 2019年7月23日 10:06
> To: Andy Tang <andy.tang at nxp.com>; u-boot at lists.denx.de
> Cc: Wen He <wen.he_1 at nxp.com>
> Subject: [PATCH] armv8: ls1028ardb: enable DisplayPort Power support
> 
> Enable DP_PWR signal to power the DP to HDMI converter cable.
> 
> Signed-off-by: Wen He <wen.he_1 at nxp.com>
> ---
>  include/configs/ls1028a_common.h | 3 +++
>  1 file changed, 3 insertions(+)
> 
> diff --git a/include/configs/ls1028a_common.h
> b/include/configs/ls1028a_common.h
> index 41ce4a054c..25fc548c99 100644
> --- a/include/configs/ls1028a_common.h
> +++ b/include/configs/ls1028a_common.h
> @@ -135,6 +135,7 @@
>  		"$kernelheader_size && esbc_validate ${kernelheader_addr_r}; "\
>  		" bootm $load_addr#$board\0" \
>  	"xspi_hdploadcmd=echo Trying load HDP firmware from FlexSPI...;" \
> +		"i2c mw 0x66 0x54 0x0;" \
>  		"sf probe 0:0 && sf read $load_addr 0x940000 0x30000 " \
>  		"&& hdp load $load_addr 0x2000\0"			\
>  	"sd_bootcmd=echo Trying load from SD ...;" \ @@ -145,6 +146,7 @@
>  		" && esbc_validate ${kernelheader_addr_r};"	\
>  		"bootm $load_addr#$board\0"		\
>  	"sd_hdploadcmd=echo Trying load HDP firmware from SD..;"        \
> +		"i2c mw 0x66 0x54 0x0;" \
>  		"mmcinfo;mmc read $load_addr 0x4a00 0x200 "             \
>  		"&& hdp load $load_addr 0x2000\0"	\
>  	"emmc_bootcmd=echo Trying load from EMMC ..;"	\
> @@ -155,6 +157,7 @@
>  		" && esbc_validate ${kernelheader_addr_r};"	\
>  		"bootm $load_addr#$board\0"			\
>  	"emmc_hdploadcmd=echo Trying load HDP firmware from EMMC..;"
> \
> +		"i2c mw 0x66 0x54 0x0;" \
>  		"mmc dev 1;mmcinfo;mmc read $load_addr 0x4a00 0x200 "	\
>  		"&& hdp load $load_addr 0x2000\0"
> 

Sorry, Should be move this function to platform initialization, will send v2 version. 

Best Regards,
Wen

> --
> 2.17.1



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