Changes:
- use boot.img instead of boot_fit.img
- use .dtb from boot.img v2
- implement recovery boot
- always boot ramdisk from boot.img, we can't mount system as root
now, as system is a logical partition inside of super partition
- don't add "skip_initramfs" to cmdline anymore
- to boot into recovery, use boot image from recovery partition
- prepare partition table:
- A/B scheme
- use 'super' partition instead of 'system' and 'vendor'
- add dtbo partitions
- introduce metadata partition
Not implemented: reading and applying dtbo files from dtbo partition.
Signed-off-by: Sam Protsenko <semen.protse...@linaro.org>
---
include/environment/ti/boot.h | 105 +++++++++++++---------------------
1 file changed, 41 insertions(+), 64 deletions(-)
diff --git a/include/environment/ti/boot.h b/include/environment/ti/boot.h
index da99215fbd..a7644a5874 100644
--- a/include/environment/ti/boot.h
+++ b/include/environment/ti/boot.h
@@ -13,28 +13,6 @@
#define CONSOLEDEV "ttyS2"
#endif
-#define VBMETA_PART_SIZE (64 * 1024)
-
-#if defined(CONFIG_LIBAVB)
-#define VBMETA_PART \
- "name=vbmeta,size=" __stringify(VBMETA_PART_SIZE) \
- ",uuid=${uuid_gpt_vbmeta};"
-#else
-#define VBMETA_PART ""
-#endif
-
-#if defined(CONFIG_CMD_AB_SELECT)
-#define COMMON_PARTS \
- "name=boot_a,size=20M,uuid=${uuid_gpt_boot_a};" \
- "name=boot_b,size=20M,uuid=${uuid_gpt_boot_b};" \
- "name=system_a,size=1024M,uuid=${uuid_gpt_system_a};" \
- "name=system_b,size=1024M,uuid=${uuid_gpt_system_b};"
-#else
-#define COMMON_PARTS \
- "name=boot,size=20M,uuid=${uuid_gpt_boot};" \
- "name=system,size=1024M,uuid=${uuid_gpt_system};"
-#endif
-
#ifndef PARTS_DEFAULT
/* Define the default GPT table for eMMC */
#define PARTS_DEFAULT \
@@ -49,10 +27,15 @@
"name=bootloader,size=2048K,uuid=${uuid_gpt_bootloader};" \
"name=uboot-env,start=2432K,size=256K,uuid=${uuid_gpt_reserved};" \
"name=misc,size=128K,uuid=${uuid_gpt_misc};" \
- "name=recovery,size=40M,uuid=${uuid_gpt_recovery};" \
- COMMON_PARTS \
- "name=vendor,size=256M,uuid=${uuid_gpt_vendor};" \
- VBMETA_PART \
+ "name=boot_a,size=20M,uuid=${uuid_gpt_boot_a};" \
+ "name=boot_b,size=20M,uuid=${uuid_gpt_boot_b};" \
+ "name=dtbo_a,size=8M,uuid=${uuid_gpt_dtbo_a};" \
+ "name=dtbo_b,size=8M,uuid=${uuid_gpt_dtbo_b};" \
+ "name=vbmeta_a,size=64K,uuid=${uuid_gpt_vbmeta_a};" \
+ "name=vbmeta_b,size=64K,uuid=${uuid_gpt_vbmeta_b};" \
+ "name=recovery,size=64M,uuid=${uuid_gpt_recovery};" \
+ "name=super,size=2560M,uuid=${uuid_gpt_super};" \
+ "name=metadata,size=16M,uuid=${uuid_gpt_metadata};" \
"name=userdata,size=-,uuid=${uuid_gpt_userdata}"
#endif /* PARTS_DEFAULT */
@@ -72,7 +55,7 @@
#define CONTROL_PARTITION "misc"
#if defined(CONFIG_CMD_AB_SELECT)
-#define AB_SELECT \
+#define AB_SELECT_SLOT \
"if part number mmc 1 " CONTROL_PARTITION " control_part_number; " \
"then " \
"echo " CONTROL_PARTITION \
@@ -82,18 +65,12 @@
"echo " CONTROL_PARTITION " partition not found;" \
"exit;" \
"fi;" \
- "setenv slot_suffix _${slot_name};" \
- "if part number mmc ${mmcdev} system${slot_suffix} " \
- "system_part_number; then " \
- "setenv bootargs_ab " \
- "ro root=/dev/mmcblk${mmcdev}p${system_part_number} " \
- "rootwait init=/init skip_initramfs " \
- "androidboot.slot_suffix=${slot_suffix};" \
- "echo A/B cmdline addition: ${bootargs_ab};" \
- "setenv bootargs ${bootargs} ${bootargs_ab};" \
- "else " \
- "echo system${slot_suffix} partition not found;" \
- "fi;"
+ "setenv slot_suffix _${slot_name};"
+
+#define AB_SELECT_ARGS \
+ "setenv bootargs_ab androidboot.slot_suffix=${slot_suffix}; " \
+ "echo A/B cmdline addition: ${bootargs_ab};" \
+ "setenv bootargs ${bootargs} ${bootargs_ab};"
#else
#define AB_SELECT ""
#endif
@@ -121,46 +98,46 @@
"setenv mmcroot /dev/mmcblk0p2 rw; " \
"run mmcboot;\0" \
"emmc_android_boot=" \
+ "setenv mmcdev 1; " \
+ "mmc dev $mmcdev; " \
+ "mmc rescan; " \
+ AB_SELECT_SLOT \
"if bcb load " __stringify(CONFIG_FASTBOOT_FLASH_MMC_DEV) " " \
CONTROL_PARTITION "; then " \
+ "setenv ardaddr -; " \
"if bcb test command = bootonce-bootloader; then " \
- "echo BCB: Bootloader boot...; " \
+ "echo Android: Bootloader boot...; " \
"bcb clear command; bcb store; " \
FASTBOOT_CMD \
+ "exit; " \
"elif bcb test command = boot-recovery; then " \
- "echo BCB: Recovery boot...; " \
- "echo Warning: recovery is not implemented; " \
- "echo Performing normal boot for now...; " \
- "bcb clear command; bcb store; " \
- "run emmc_android_normal_boot; " \
+ "echo Android: Recovery boot...; " \
+ "setenv ardaddr $loadaddr;" \
+ "setenv apart recovery; " \
"else " \
- "echo BCB: Normal boot requested...; " \
- "run emmc_android_normal_boot; " \
+ "echo Android: Normal boot...; " \
+ "setenv ardaddr $loadaddr; " \
+ "setenv apart boot${slot_suffix}; " \
"fi; " \
"else " \
"echo Warning: BCB is corrupted or does not exist; " \
- "echo Performing normal boot...; " \
- "run emmc_android_normal_boot; " \
- "fi;\0" \
- "emmc_android_normal_boot=" \
- "echo Trying to boot Android from eMMC ...; " \
- "run update_to_fit; " \
+ "echo Android: Normal boot...; " \
+ "fi; " \
"setenv eval_bootargs setenv bootargs $bootargs; " \
"run eval_bootargs; " \
- "setenv mmcdev 1; " \
"setenv machid fe6; " \
- "mmc dev $mmcdev; " \
- "mmc rescan; " \
AVB_VERIFY_CHECK \
- AB_SELECT \
- "if part start mmc ${mmcdev} boot${slot_suffix} boot_start; " \
- "then " \
- "part size mmc ${mmcdev} boot${slot_suffix} " \
- "boot_size; " \
- "mmc read ${loadaddr} ${boot_start} ${boot_size}; " \
- "bootm ${loadaddr}#${fdtfile}; " \
+ AB_SELECT_ARGS \
+ "if part start mmc $mmcdev $apart boot_start; then " \
+ "part size mmc $mmcdev $apart boot_size; " \
+ "mmc read $loadaddr $boot_start $boot_size; " \
+ "bootimg get_dtb_file 0 dtb_start dtb_size; " \
+ "cp.b $dtb_start $fdtaddr $dtb_size; " \
+ "fdt addr $fdtaddr; " \
+ "bootm $loadaddr $ardaddr $fdtaddr; " \
"else " \
- "echo boot${slot_suffix} partition not found; " \
+ "echo $apart partition not found; " \
+ "exit; " \
"fi;\0"
#ifdef CONFIG_OMAP54XX
--
2.23.0
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