[PATCH] imx8qxp_mek: Fix the console command line string

[Fabio Estevam <festevam@gmail.com>]

Currently the expansion of the console variable leads to
the following kernel command line:

console=ttyLP0,${baudrate} earlycon root=/dev/mmcblk1p2 rootwait rw

, which causes the console to not show characters after the LPUART driver
is probed as the 'baudrate' variable is not properly translated.

Fix it by splitting the console variable in two parts: one for the
ttyLP0 part and the other one for the baudrate, which matches the way
it is done on other i.MX targets.

Tested by successfully booting a mainline kernel on a i.MX8QXP MEK
board.

Signed-off-by: Fabio Estevam <festevam@gmail.com>
---
Anatolij's patch is needed for booting:
https://lists.denx.de/pipermail/u-boot/2020-February/400417.html

 include/configs/imx8qxp_mek.h | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/include/configs/imx8qxp_mek.h b/include/configs/imx8qxp_mek.h
index 81ac4b52f3..0aaca3325b 100644
--- a/include/configs/imx8qxp_mek.h
+++ b/include/configs/imx8qxp_mek.h
@@ -65,7 +65,7 @@
 	"script=boot.scr\0" \
 	"image=Image\0" \
 	"panel=NULL\0" \
-	"console=ttyLP0,${baudrate} earlycon\0" \
+	"console=ttyLP0\0" \
 	"fdt_addr=0x83000000\0"			\
 	"fdt_high=0xffffffffffffffff\0"		\
 	"boot_fdt=try\0" \
@@ -76,7 +76,7 @@
 	"mmcpart=" __stringify(CONFIG_SYS_MMC_IMG_LOAD_PART) "\0" \
 	"mmcroot=" CONFIG_MMCROOT " rootwait rw\0" \
 	"mmcautodetect=yes\0" \
-	"mmcargs=setenv bootargs console=${console} root=${mmcroot}\0 " \
+	"mmcargs=setenv bootargs console=${console},${baudrate} root=${mmcroot}\0 " \
 	"loadbootscript=fatload mmc ${mmcdev}:${mmcpart} ${loadaddr} ${script};\0" \
 	"bootscript=echo Running bootscript from mmc ...; " \
 		"source\0" \
@@ -104,7 +104,7 @@
 				"echo wait for boot; " \
 			"fi;" \
 		"fi;\0" \
-	"netargs=setenv bootargs console=${console} " \
+	"netargs=setenv bootargs console=${console},${baudrate} " \
 		"root=/dev/nfs " \
 		"ip=dhcp nfsroot=${serverip}:${nfsroot},v3,tcp\0" \
 	"netboot=echo Booting from net ...; " \
-- 
2.17.1