From: Ken Lin ken.lin@advantech.com.tw
Due to clock source restrictions on i.MX6, certain pixel clock rates can not be supported. Hence default the resolution/frame rate during boot to a supported value by passing video bootargs 1024x768@60 for HDMI (Display Port1) and LVDS (Display Port2) on B850v3.
Signed-off-by: Ken Lin ken.lin@advantech.com.tw Signed-off-by: Akshay Bhat akshay.bhat@timesys.com ---
v1 -> v2: Rename CONFIG_BOOTARGS_EXTRA to BX50V3_BOOTARGS_EXTRA since CONFIG_* is reserved for defines added via Kconfig
include/configs/ge_bx50v3.h | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/include/configs/ge_bx50v3.h b/include/configs/ge_bx50v3.h index 52f096e..c77fef6 100644 --- a/include/configs/ge_bx50v3.h +++ b/include/configs/ge_bx50v3.h @@ -15,6 +15,7 @@ #include <asm/arch/imx-regs.h> #include <asm/imx-common/gpio.h>
+#define BX50V3_BOOTARGS_EXTRA #if defined(CONFIG_TARGET_GE_B450V3) #define CONFIG_BOARD_NAME "General Electric B450v3" #define CONFIG_DEFAULT_FDT_FILE "/boot/imx6q-b450v3.dtb" @@ -24,6 +25,9 @@ #elif defined(CONFIG_TARGET_GE_B850V3) #define CONFIG_BOARD_NAME "General Electric B850v3" #define CONFIG_DEFAULT_FDT_FILE "/boot/imx6q-b850v3.dtb" +#undef BX50V3_BOOTARGS_EXTRA +#define BX50V3_BOOTARGS_EXTRA "video=DP-1:1024x768@60 " \ + "video=HDMI-A-1:1024x768@60 " #else #define CONFIG_BOARD_NAME "General Electric BA16 Generic" #define CONFIG_DEFAULT_FDT_FILE "/boot/imx6q-ba16.dtb" @@ -166,7 +170,8 @@ "echo 'U-Boot upgraded. Please reset'; " \ "fi\0" \ "setargs=setenv bootargs console=${console},${baudrate} " \ - "root=/dev/${rootdev} rw rootwait cma=128M\0" \ + "root=/dev/${rootdev} rw rootwait cma=128M " \ + BX50V3_BOOTARGS_EXTRA "\0" \ "loadbootscript=" \ "ext2load ${dev} ${devnum}:${partnum} ${loadaddr} ${script};\0" \ "bootscript=echo Running bootscript from ${dev}:${devnum}:${partnum};" \