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| author | Dzmitry Sankouski <dsankouski@gmail.com> | 2022-02-22 21:49:54 +0300 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2022-04-04 19:02:03 -0400 |
| commit | d5c4ec4aa3aaa833cb535daa64a583a14304fc95 (patch) | |
| tree | 0d5106a3e30ded64eed021c762039b48c8378e99 /configs | |
| parent | f8a1b33889a2ed880062d9960a68718463093de6 (diff) | |
| download | u-boot-d5c4ec4aa3aaa833cb535daa64a583a14304fc95.zip u-boot-d5c4ec4aa3aaa833cb535daa64a583a14304fc95.tar.gz u-boot-d5c4ec4aa3aaa833cb535daa64a583a14304fc95.tar.bz2 | |
board: axy17lte: get board usable - add bootcmd and docs
U-boot is intended to replace linux kernel in android boot image(ABL), and
it's FIT payload to replace initramfs file. The boot process is similar to
boot image with linux:
- android bootloader (ABL) unpacks android boot image
- ABL sets `linux,initrd-start property` in chosen node in unpacked FDT
- ABL sets x0 register to FDT address, and passes control to u-boot
- u-boot reads x0 register, and stores it in `prevbl_fdt_addr` env variable
- u-boot reads `linux,initrd-start` property,
and stores it in `prevbl_initrd_start_addr`
In this way, u-boot bootcmd relies on `prevbl_initrd_start_addr` env
variable, and boils down to `bootm $prevbl_initrd_start_addr`.
If more control on boot process is desired, pack a boot script in
FIT image, and put it to default configuration
What done:
- Rearrange defconfig option order
- Add CONFIG_SAVE_PREV_BL_* options
- Doc updates:
- remove wrong SBOOT memory corruption note, because
memory is changed during u-boot bringup process,
not by SBOOT
- put payload on ramdisk place in abl boot image
creation step
Signed-off-by: Dzmitry Sankouski <dsankouski@gmail.com>
Diffstat (limited to 'configs')
| -rw-r--r-- | configs/a3y17lte_defconfig | 3 | ||||
| -rw-r--r-- | configs/a5y17lte_defconfig | 3 | ||||
| -rw-r--r-- | configs/a7y17lte_defconfig | 3 |
3 files changed, 9 insertions, 0 deletions
diff --git a/configs/a3y17lte_defconfig b/configs/a3y17lte_defconfig index b433da3..7ca7ce0 100644 --- a/configs/a3y17lte_defconfig +++ b/configs/a3y17lte_defconfig @@ -11,8 +11,11 @@ CONFIG_SYS_LOAD_ADDR=0x40001000 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;" +CONFIG_SAVE_PREV_BL_FDT_ADDR=y +CONFIG_SAVE_PREV_BL_INITRAMFS_START_ADDR=y # CONFIG_DISPLAY_CPUINFO is not set CONFIG_HUSH_PARSER=y CONFIG_CMD_GPIO=y CONFIG_CMD_I2C=y CONFIG_DM_I2C_GPIO=y +CONFIG_LMB_MAX_REGIONS=64 diff --git a/configs/a5y17lte_defconfig b/configs/a5y17lte_defconfig index 2534ab0..793389e 100644 --- a/configs/a5y17lte_defconfig +++ b/configs/a5y17lte_defconfig @@ -11,8 +11,11 @@ CONFIG_SYS_LOAD_ADDR=0x40001000 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;" +CONFIG_SAVE_PREV_BL_FDT_ADDR=y +CONFIG_SAVE_PREV_BL_INITRAMFS_START_ADDR=y # CONFIG_DISPLAY_CPUINFO is not set CONFIG_HUSH_PARSER=y CONFIG_CMD_GPIO=y CONFIG_CMD_I2C=y CONFIG_DM_I2C_GPIO=y +CONFIG_LMB_MAX_REGIONS=64 diff --git a/configs/a7y17lte_defconfig b/configs/a7y17lte_defconfig index a2d7637..eaa448d 100644 --- a/configs/a7y17lte_defconfig +++ b/configs/a7y17lte_defconfig @@ -11,8 +11,11 @@ CONFIG_SYS_LOAD_ADDR=0x40001000 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;" +CONFIG_SAVE_PREV_BL_FDT_ADDR=y +CONFIG_SAVE_PREV_BL_INITRAMFS_START_ADDR=y # CONFIG_DISPLAY_CPUINFO is not set CONFIG_HUSH_PARSER=y CONFIG_CMD_GPIO=y CONFIG_CMD_I2C=y CONFIG_DM_I2C_GPIO=y +CONFIG_LMB_MAX_REGIONS=64 |