@@ -1,13 +1,14 @@
CONFIG_ARM=y
-CONFIG_SYS_CONFIG_NAME="exynos78x0-common"
-CONFIG_SKIP_LOWLEVEL_INIT=y
CONFIG_ARCH_EXYNOS=y
-CONFIG_SYS_TEXT_BASE=0x40001000
CONFIG_ARCH_EXYNOS7=y
CONFIG_TARGET_A3Y17LTE=y
+CONFIG_SYS_CONFIG_NAME="exynos78x0-common"
+CONFIG_SYS_TEXT_BASE=0x40001000
+CONFIG_SYS_LOAD_ADDR=0x40001000
+CONFIG_SKIP_LOWLEVEL_INIT=y
CONFIG_NR_DRAM_BANKS=8
CONFIG_DEFAULT_DEVICE_TREE="exynos78x0-axy17lte"
-CONFIG_SYS_LOAD_ADDR=0x40001000
+CONFIG_HUSH_PARSER=y
CONFIG_FIT=y
CONFIG_USE_PREBOOT=y
CONFIG_PREBOOT="echo Read pressed buttons status;KEY_VOLUMEUP=gpa20;KEY_HOME=gpa17;KEY_VOLUMEDOWN=gpa21;KEY_POWER=gpa00;PRESSED=0;RELEASED=1;if gpio input $KEY_VOLUMEUP; then setenv VOLUME_UP $PRESSED; else setenv VOLUME_UP $RELEASED; fi;if gpio input $KEY_VOLUMEDOWN; then setenv VOLUME_DOWN $PRESSED; else setenv VOLUME_DOWN $RELEASED; fi;if gpio input $KEY_HOME; then setenv HOME $PRESSED; else setenv HOME $RELEASED; fi;if gpio input $KEY_POWER; then setenv POWER $PRESSED; else setenv POWER $RELEASED; fi;"
@@ -16,4 +17,4 @@ CONFIG_HUSH_PARSER=y
CONFIG_CMD_GPIO=y
CONFIG_CMD_I2C=y
CONFIG_DM_I2C_GPIO=y
-CONFIG_PINCTRL_EXYNOS78x0=y
+CONFIG_SAVE_PREV_BL_INITRAMFS_START_ADDR=y
@@ -1,13 +1,14 @@
CONFIG_ARM=y
-CONFIG_SYS_CONFIG_NAME="exynos78x0-common"
-CONFIG_SKIP_LOWLEVEL_INIT=y
CONFIG_ARCH_EXYNOS=y
-CONFIG_SYS_TEXT_BASE=0x40001000
CONFIG_ARCH_EXYNOS7=y
CONFIG_TARGET_A5Y17LTE=y
+CONFIG_SYS_CONFIG_NAME="exynos78x0-common"
+CONFIG_SYS_TEXT_BASE=0x40001000
+CONFIG_SYS_LOAD_ADDR=0x40001000
+CONFIG_SKIP_LOWLEVEL_INIT=y
CONFIG_NR_DRAM_BANKS=12
CONFIG_DEFAULT_DEVICE_TREE="exynos78x0-axy17lte"
-CONFIG_SYS_LOAD_ADDR=0x40001000
+CONFIG_HUSH_PARSER=y
CONFIG_FIT=y
CONFIG_USE_PREBOOT=y
CONFIG_PREBOOT="echo Read pressed buttons status;KEY_VOLUMEUP=gpa20;KEY_HOME=gpa17;KEY_VOLUMEDOWN=gpa21;KEY_POWER=gpa00;PRESSED=0;RELEASED=1;if gpio input $KEY_VOLUMEUP; then setenv VOLUME_UP $PRESSED; else setenv VOLUME_UP $RELEASED; fi;if gpio input $KEY_VOLUMEDOWN; then setenv VOLUME_DOWN $PRESSED; else setenv VOLUME_DOWN $RELEASED; fi;if gpio input $KEY_HOME; then setenv HOME $PRESSED; else setenv HOME $RELEASED; fi;if gpio input $KEY_POWER; then setenv POWER $PRESSED; else setenv POWER $RELEASED; fi;"
@@ -16,3 +17,4 @@ CONFIG_HUSH_PARSER=y
CONFIG_CMD_GPIO=y
CONFIG_CMD_I2C=y
CONFIG_DM_I2C_GPIO=y
+CONFIG_SAVE_PREV_BL_INITRAMFS_START_ADDR=y
@@ -1,13 +1,14 @@
CONFIG_ARM=y
-CONFIG_SYS_CONFIG_NAME="exynos78x0-common"
-CONFIG_SKIP_LOWLEVEL_INIT=y
CONFIG_ARCH_EXYNOS=y
-CONFIG_SYS_TEXT_BASE=0x40001000
CONFIG_ARCH_EXYNOS7=y
CONFIG_TARGET_A7Y17LTE=y
+CONFIG_SYS_CONFIG_NAME="exynos78x0-common"
+CONFIG_SYS_TEXT_BASE=0x40001000
+CONFIG_SYS_LOAD_ADDR=0x40001000
+CONFIG_SKIP_LOWLEVEL_INIT=y
CONFIG_NR_DRAM_BANKS=12
CONFIG_DEFAULT_DEVICE_TREE="exynos78x0-axy17lte"
-CONFIG_SYS_LOAD_ADDR=0x40001000
+CONFIG_HUSH_PARSER=y
CONFIG_FIT=y
CONFIG_USE_PREBOOT=y
CONFIG_PREBOOT="echo Read pressed buttons status;KEY_VOLUMEUP=gpa20;KEY_HOME=gpa17;KEY_VOLUMEDOWN=gpa21;KEY_POWER=gpa00;PRESSED=0;RELEASED=1;if gpio input $KEY_VOLUMEUP; then setenv VOLUME_UP $PRESSED; else setenv VOLUME_UP $RELEASED; fi;if gpio input $KEY_VOLUMEDOWN; then setenv VOLUME_DOWN $PRESSED; else setenv VOLUME_DOWN $RELEASED; fi;if gpio input $KEY_HOME; then setenv HOME $PRESSED; else setenv HOME $RELEASED; fi;if gpio input $KEY_POWER; then setenv POWER $PRESSED; else setenv POWER $RELEASED; fi;"
@@ -16,3 +17,4 @@ CONFIG_HUSH_PARSER=y
CONFIG_CMD_GPIO=y
CONFIG_CMD_I2C=y
CONFIG_DM_I2C_GPIO=y
+CONFIG_SAVE_PREV_BL_INITRAMFS_START_ADDR=y
@@ -66,26 +66,17 @@ and is therefore SBOOT's payload.
It may be pure u-boot (with loading u-boot's payload from flash in mind),
or u-boot + u-boot's payload.
-It should be kept in mind, that SBOOT binary patches it's payload after loading
-in address range 0x401f8550-0x401f9280. Given SBOOT loads payload to 0x40001000,
-a range of 0x1f7550-0x1f8280 (2061648-2065024) in a payload file
-will be corrupted after loading to RAM.
-
Creating payload file
"""""""""""""""""""""
- Assemble FIT image for your kernel
-- Create a file for u-boot payload ``touch sboot-payload``
-- Write zeroes till 0x200000 address to be sure SBOOT won't corrupt your info
- ``dd if=/dev/zero of=sboot-payload bs=$((0x200000)) count=1``
-- Write u-boot to the start of the payload ``dd if=<u-boot.bin path> of=sboot-payload``
-- Write FIT image to payload from 0x200000 address
- ``dd if=<FIT image path> of=sboot-payload seek=1 bs=2M``
Creating android boot image
"""""""""""""""""""""""""""
Once payload created, it's time for android image::
- mkbootimg --base 0x40000000 --kernel_offset 0x00000000 --ramdisk_offset 0x01000000 --tags_offset 0x00000100 --pagesize 2048 --second_offset 0x00f00000 --kernel <sboot-payload path> -o uboot.img
+ uboot=<path to u-boot.bin file>
+ ramdisk=<path to FIT payload file>
+ mkbootimg --base 0x40000000 --kernel_offset 0x00000000 --ramdisk_offset 0x01000000 --tags_offset 0x00000100 --pagesize 2048 --second_offset 0x00f00000 --kernel "$uboot" --ramdisk "$ramdisk" -o uboot.img
Note, that stock Samsung bootloader ignores offsets, set in mkbootimg.
@@ -85,6 +85,7 @@
#endif
#define EXTRA_ENV_SETTINGS \
+ "bootcmd=bootm $prevbl_initrd_start_addr\0" \
EXYNOS_DEVICE_SETTINGS \
EXYNOS_FDTFILE_SETTING \
MEM_LAYOUT_ENV_SETTINGS