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| author | Dzmitry Sankouski <dsankouski@gmail.com> | 2022-02-22 21:49:53 +0300 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2022-04-04 15:06:11 -0400 |
| commit | f8a1b33889a2ed880062d9960a68718463093de6 (patch) | |
| tree | d89daf02652ac47bf9af42f0b296e051d093509c /configs/starqltechn_defconfig | |
| parent | 12a3e1ada06c702c403cf1eebb063ef7a34688cd (diff) | |
| download | u-boot-f8a1b33889a2ed880062d9960a68718463093de6.zip u-boot-f8a1b33889a2ed880062d9960a68718463093de6.tar.gz u-boot-f8a1b33889a2ed880062d9960a68718463093de6.tar.bz2 | |
board: starqltechn: 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:
- strip unneeded config options
- add FIT image support
- add framebuffer node, u-boot logo and video console
- increase LMB_MAX_REGIONS, to store all linux dtb reserved memory regions
- add linux kernel image header
Uart driver causes hang, when u-boot is used in android boot image instead
of linux. Temporary disable console driver, until investigated and fixed.
Signed-off-by: Dzmitry Sankouski <dsankouski@gmail.com>
Cc: Ramon Fried <rfried.dev@gmail.com>
Diffstat (limited to 'configs/starqltechn_defconfig')
| -rw-r--r-- | configs/starqltechn_defconfig | 21 |
1 files changed, 17 insertions, 4 deletions
diff --git a/configs/starqltechn_defconfig b/configs/starqltechn_defconfig index f57bb85..75e8409 100644 --- a/configs/starqltechn_defconfig +++ b/configs/starqltechn_defconfig @@ -2,16 +2,18 @@ CONFIG_ARM=y CONFIG_SKIP_LOWLEVEL_INIT=y CONFIG_POSITION_INDEPENDENT=y CONFIG_ARCH_SNAPDRAGON=y -CONFIG_SYS_TEXT_BASE=0x80000000 -CONFIG_SYS_MALLOC_LEN=0x81f000 CONFIG_DEFAULT_DEVICE_TREE="starqltechn" +CONFIG_BOOTDELAY=0 +CONFIG_FIT=y +CONFIG_FIT_VERBOSE=y CONFIG_TARGET_STARQLTECHN=y CONFIG_IDENT_STRING="\nSamsung S9 SM-G9600" CONFIG_SYS_LOAD_ADDR=0x80000000 -CONFIG_USE_PREBOOT=y +CONFIG_LMB_MAX_REGIONS=64 # CONFIG_DISPLAY_CPUINFO is not set CONFIG_HUSH_PARSER=y CONFIG_CMD_GPIO=y +# CONFIG_REQUIRE_SERIAL_CONSOLE is not set # CONFIG_NET is not set # CONFIG_DM_STDIO is not set CONFIG_CLK=y @@ -20,5 +22,16 @@ CONFIG_PM8916_GPIO=y CONFIG_PINCTRL=y CONFIG_DM_PMIC=y CONFIG_PMIC_PM8916=y -CONFIG_MSM_GENI_SERIAL=y +# CONFIG_MSM_GENI_SERIAL is not set CONFIG_SPMI_MSM=y +CONFIG_LINUX_KERNEL_IMAGE_HEADER=y +CONFIG_SAVE_PREV_BL_INITRAMFS_START_ADDR=y +CONFIG_SAVE_PREV_BL_FDT_ADDR=y +CONFIG_DM_VIDEO=y +CONFIG_VIDEO_LOGO=y +CONFIG_CMD_VIDCONSOLE=y +CONFIG_CONSOLE_NORMAL=y +CONFIG_SYS_WHITE_ON_BLACK=y +CONFIG_VIDEO_DT_SIMPLEFB=y +CONFIG_VIDEO_SIMPLE=y +CONFIG_CMD_BMP=y |