configs: meson64_android: implement recovery boot via BCB

Right now meson64_android does not know how to boot into Android
Recovery: it simply falls back to "fastboot" mode in the bootloader.

Implement the boot to recovery.
While at it, use the standard BCB way instead of a sm for consistency.

Signed-off-by: Mattijs Korpershoek <mkorpershoek@baylibre.com>
Acked-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>

diff --git a/include/configs/meson64_android.h b/include/configs/meson64_android.h
index d732032..ce08346 100644 (file)
--- a/include/configs/meson64_android.h
+++ b/include/configs/meson64_android.h
@@ -21,6 +21,10 @@
 #define CONTROL_PARTITION "misc"
 #endif
 
+#ifndef RECOVERY_PARTITION
+#define RECOVERY_PARTITION "recovery"
+#endif
+
 #define BOOTENV_DEV_FASTBOOT(devtypeu, devtypel, instance) \
        "bootcmd_fastboot=" \
                "setenv run_fastboot 0;" \
@@ -51,20 +55,23 @@
 #define BOOTENV_DEV_NAME_FASTBOOT(devtypeu, devtypel, instance)        \
                "fastboot "
 
-/* TOFIX: Run actual recovery instead of fastboot */
 #define BOOTENV_DEV_RECOVERY(devtypeu, devtypel, instance) \
        "bootcmd_recovery=" \
                "pinmux dev pinctrl@14;" \
                "pinmux dev pinctrl@40;" \
-               "sm reboot_reason reason;" \
                "setenv run_recovery 0;" \
                "if run check_button; then " \
                        "echo Recovery button is pressed;" \
                        "setenv run_recovery 1;" \
-               "elif test \"${reason}\" = \"recovery\" -o " \
-                         "\"${reason}\" = \"update\"; then " \
-                       "echo Recovery asked by reboot reason;" \
-                       "setenv run_recovery 1;" \
+               "fi; " \
+               "if bcb load " __stringify(CONFIG_FASTBOOT_FLASH_MMC_DEV) " " \
+               CONTROL_PARTITION "; then " \
+                       "if bcb test command = boot-recovery; then " \
+                               "echo BCB: Recovery boot...; " \
+                               "setenv run_recovery 1;" \
+                       "fi;" \
+               "else " \
+                       "echo Warning: BCB is corrupted or does not exist; " \
                "fi;" \
                "if test \"${skip_recovery}\" -eq 1; then " \
                        "echo Recovery skipped by environment;" \
@@ -76,7 +83,16 @@
                "fi;" \
                "if test \"${run_recovery}\" -eq 1; then " \
                        "echo Running Recovery...;" \
-                       "fastboot " __stringify(CONFIG_FASTBOOT_USB_DEV) "; " \
+                       "mmc dev ${mmcdev};" \
+                       "setenv bootargs \"${bootargs} androidboot.serialno=${serial#}\";" \
+                       "part start mmc ${mmcdev} " RECOVERY_PARTITION " boot_start;" \
+                       "part size mmc ${mmcdev} " RECOVERY_PARTITION " boot_size;" \
+                       "if mmc read ${loadaddr} ${boot_start} ${boot_size}; then " \
+                               "echo Running Android Recovery...;" \
+                               "bootm ${loadaddr};" \
+                       "fi;" \
+                       "echo Failed to boot Android...;" \
+                       "reset;" \
                "fi\0"
 
 #define BOOTENV_DEV_NAME_RECOVERY(devtypeu, devtypel, instance)        \