arm: ti: boot: Use correct dtb and dtbo on Android boot
Read correct dtb blob from boot.img/recovery.img and apply correct dtbo
blobs from dtbo partition.
Signed-off-by: Sam Protsenko <joe.skb7@gmail.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
diff --git a/include/environment/ti/boot.h b/include/environment/ti/boot.h
index 5a0fc1d..523c8fc 100644
--- a/include/environment/ti/boot.h
+++ b/include/environment/ti/boot.h
@@ -81,6 +81,45 @@
#define AB_SELECT_ARGS ""
#endif
+/*
+ * Prepares complete device tree blob for current board (for Android boot).
+ *
+ * Boot image or recovery image should be loaded into $loadaddr prior to running
+ * these commands. The logic of these commnads is next:
+ *
+ * 1. Read correct DTB for current SoC/board from boot image in $loadaddr
+ * to $fdtaddr
+ * 2. Merge all needed DTBO for current board from 'dtbo' partition into read
+ * DTB
+ * 3. User should provide $fdtaddr as 3rd argument to 'bootm'
+ */
+#define PREPARE_FDT \
+ "echo Preparing FDT...; " \
+ "if test $board_name = am57xx_evm_reva3; then " \
+ "echo \" Reading DTBO partition...\"; " \
+ "part start mmc ${mmcdev} dtbo${slot_suffix} p_dtbo_start; " \
+ "part size mmc ${mmcdev} dtbo${slot_suffix} p_dtbo_size; " \
+ "mmc read ${dtboaddr} ${p_dtbo_start} ${p_dtbo_size}; " \
+ "echo \" Reading DTB for AM57x EVM RevA3...\"; " \
+ "abootimg get dtb --index=0 dtb_start dtb_size; " \
+ "cp.b $dtb_start $fdtaddr $dtb_size; " \
+ "fdt addr $fdtaddr; " \
+ "echo \" Applying DTBOs for AM57x EVM RevA3...\"; " \
+ "adtimg addr $dtboaddr; " \
+ "adtimg get dt --index=0 dtbo0_addr; " \
+ "fdt apply $dtbo0_addr; " \
+ "adtimg get dt --index=1 dtbo1_addr; " \
+ "fdt apply $dtbo1_addr; " \
+ "elif test $board_name = beagle_x15_revc; then " \
+ "echo \" Reading DTB for Beagle X15 RevC...\"; " \
+ "abootimg get dtb --index=0 dtb_start dtb_size; " \
+ "cp.b $dtb_start $fdtaddr $dtb_size; " \
+ "fdt addr $fdtaddr; " \
+ "else " \
+ "echo Error: Android boot is not supported for $board_name; " \
+ "exit; " \
+ "fi; " \
+
#define FASTBOOT_CMD \
"echo Booting into fastboot ...; " \
"fastboot " __stringify(CONFIG_FASTBOOT_USB_DEV) "; "
@@ -137,9 +176,7 @@
"if part start mmc $mmcdev $apart boot_start; then " \
"part size mmc $mmcdev $apart boot_size; " \
"mmc read $loadaddr $boot_start $boot_size; " \
- "abootimg get dtb --index=0 dtb_start dtb_size; " \
- "cp.b $dtb_start $fdtaddr $dtb_size; " \
- "fdt addr $fdtaddr; " \
+ PREPARE_FDT \
"bootm $loadaddr $ardaddr $fdtaddr; " \
"else " \
"echo $apart partition not found; " \