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5 commits

Author SHA1 Message Date
Heinrich Schuchardt
b214e88071 doc: shorten overlong title underlines
Title underlines should match the length of the title. Unfortunately
docutils only catches underlines that are too short.

Add some missing empty lines after titles.

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
2023-11-11 01:44:08 +01:00
Dzmitry Sankouski
d5c4ec4aa3 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>
2022-04-04 19:02:03 -04:00
Tom Rini
93ee2bbe14 doc: samsung: axy17lte: Fix underlines
A few sections had underlines that were too short, correct.

Signed-off-by: Tom Rini <trini@konsulko.com>
2022-01-19 11:06:07 -05:00
Henrik Grimler
e93158beb3 doc: board: avoid ambiguous names for axy17lte
Model names are SM-A{3,5,7}20, just SM-{3,5,7}20 could also refer to
SM-J{3,5,7}20 or SM-T{3,5,7}20.

Fixes: 3e2095e960 ("board: samsung: add support for Galaxy A series
of 2017 (a5y17lte)")
Signed-off-by: Henrik Grimler <henrik@grimler.se>
Reviewed-by: Dzmitry Sankouski <dsankouski@gmail.com>
Reviewed-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
2022-01-13 14:33:00 +09:00
Dzmitry Sankouski
3e2095e960 board: samsung: add support for Galaxy A series of 2017 (a5y17lte)
Samsung Galaxy A3, A5, A7 (2017) - middle class Samsung smartphones.
U-boot can be used as chain-loaded bootloader to gain control
on booting vanilla linux(and possibly others) kernels

Signed-off-by: Dzmitry Sankouski <dsankouski@gmail.com>
Cc: Minkyu Kang <mk7.kang@samsung.com>
2021-10-31 11:25:39 -04:00