mvebu: image: fix generic-arm64.bootscript mmc selection

Not all versions of ESPRESSObin require SD card, but can
be booted from the internal emmc flash (mmc dev 1) instead.
Add a simple check in the bootscript to see which mmc device
is detected and boot from it using mmcdev variable.

Tested-by: Tomasz Maciej Nowak <tomek_n@o2.pl>
Signed-off-by: Vladimir Vid <vladimir.vid@sartura.hr>
(cherry picked from commit 008b41b9b0ddd4c5c877a769a85d27eb9c4e21a4)

diff --git a/target/linux/mvebu/image/generic-arm64.bootscript b/target/linux/mvebu/image/generic-arm64.bootscript
index f395590f84093d1fbf7b0966151daba4c813c61c..bb789482533314bd04e49a468450f667acb3c5d0 100644 (file)
--- a/target/linux/mvebu/image/generic-arm64.bootscript
+++ b/target/linux/mvebu/image/generic-arm64.bootscript
@@ -4,7 +4,13 @@ if test -n "${console}"; then
        setenv bootargs "${bootargs} ${console}"
 fi
 
-load mmc 0:1 ${fdt_addr} @DTB@.dtb
-load mmc 0:1 ${kernel_addr} Image
+if mmc dev 0; then
+       setenv mmcdev 0
+elif mmc dev 1; then
+       setenv mmcdev 1
+fi
+
+load mmc ${mmcdev}:1 ${fdt_addr} @DTB@.dtb
+load mmc ${mmcdev}:1 ${kernel_addr} Image
 
 booti ${kernel_addr} - ${fdt_addr}