ti_armv7_common: env: Use partuuid for detecting mmc root fs

Linux kernel can enumerate mmc sd as either mmcblk0 or mmcblk1. But u-boot default environment assumes that sd always populates as mmcblk0. With this the root fs is not being mounted when mmc sd is enumerated as mmcblk1. So use partuuid to update root= option in default environment. Reported-by: Yan Liu <yan-liu@ti.com> Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>

ti_armv7_common: env: Use partuuid for detecting mmc root fs
Linux kernel can enumerate mmc sd as either mmcblk0 or mmcblk1. But u-boot default environment assumes that sd always populates as mmcblk0. With this the root fs is not being mounted when mmc sd is enumerated as mmcblk1. So use partuuid to update root= option in default environment. Reported-by: Yan Liu <yan-liu@ti.com> Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Lokesh Vutla
1 parent f073f50b6e
Showing 1 changed file with 3 additions and 2 deletions Side-by-side Diff
include/configs/ti_armv7_common.h
@@ -61,9 +61,10 @@
 #define DEFAULT_MMC_TI_ARGS \
 	"mmcdev=0\0" \
 	"mmcrootfstype=ext4 rootwait\0" \
-	"args_mmc=setenv bootargs console=${console} " \
+	"finduuid=part uuid mmc 0:2 uuid\0" \
+	"args_mmc=run finduuid;setenv bootargs console=${console} " \
 		"${optargs} " \
-		"root=${mmcroot} " \
+		"root=PARTUUID=${uuid} rw " \
 		"rootfstype=${mmcrootfstype}\0"
  
 /*
...	...	@@ -61,9 +61,10 @@
61	61	#define DEFAULT_MMC_TI_ARGS \
62	62	"mmcdev=0\0" \
63	63	"mmcrootfstype=ext4 rootwait\0" \
64		- "args_mmc=setenv bootargs console=${console} " \
	64	+ "finduuid=part uuid mmc 0:2 uuid\0" \
	65	+ "args_mmc=run finduuid;setenv bootargs console=${console} " \
65	66	"${optargs} " \
66		- "root=${mmcroot} " \
	67	+ "root=PARTUUID=${uuid} rw " \
67	68	"rootfstype=${mmcrootfstype}\0"
68	69
69	70	/*