diff options
| author |   Angelos Mouzakitis <a.mouzakitis@virtualopensystems.com> | 2023-10-10 14:33:42 +0000 |
|---|---|---|
| committer | Angelos Mouzakitis <a.mouzakitis@virtualopensystems.com> | 2023-10-10 14:33:42 +0000 |
| commit | af1a266670d040d2f4083ff309d732d648afba2a (patch) | |
| tree | 2fc46203448ddcc6f81546d379abfaeb323575e9 /roms/u-boot/board/ste | |
| parent | e02cda008591317b1625707ff8e115a4841aa889 (diff) | |
Change-Id: Iaf8d18082d3991dec7c0ebbea540f092188eb4ec
Diffstat (limited to 'roms/u-boot/board/ste')
| -rw-r--r-- | roms/u-boot/board/ste/stemmy/Kconfig | 12 | ||||
| -rw-r--r-- | roms/u-boot/board/ste/stemmy/MAINTAINERS | 6 | ||||
| -rw-r--r-- | roms/u-boot/board/ste/stemmy/Makefile | 2 | ||||
| -rw-r--r-- | roms/u-boot/board/ste/stemmy/README | 49 | ||||
| -rw-r--r-- | roms/u-boot/board/ste/stemmy/stemmy.c | 20 |
5 files changed, 89 insertions, 0 deletions
diff --git a/roms/u-boot/board/ste/stemmy/Kconfig b/roms/u-boot/board/ste/stemmy/Kconfig new file mode 100644 index 000000000..b890ba51c --- /dev/null +++ b/roms/u-boot/board/ste/stemmy/Kconfig @@ -0,0 +1,12 @@ +if TARGET_STEMMY + +config SYS_BOARD + default "stemmy" + +config SYS_VENDOR + default "ste" + +config SYS_CONFIG_NAME + default "stemmy" + +endif diff --git a/roms/u-boot/board/ste/stemmy/MAINTAINERS b/roms/u-boot/board/ste/stemmy/MAINTAINERS new file mode 100644 index 000000000..37daabea9 --- /dev/null +++ b/roms/u-boot/board/ste/stemmy/MAINTAINERS @@ -0,0 +1,6 @@ +STEMMY BOARD +M: Stephan Gerhold <stephan@gerhold.net> +S: Maintained +F: board/ste/stemmy/ +F: include/configs/stemmy.h +F: configs/stemmy_defconfig diff --git a/roms/u-boot/board/ste/stemmy/Makefile b/roms/u-boot/board/ste/stemmy/Makefile new file mode 100644 index 000000000..1245099bc --- /dev/null +++ b/roms/u-boot/board/ste/stemmy/Makefile @@ -0,0 +1,2 @@ +# SPDX-License-Identifier: GPL-2.0-or-later +obj-y := stemmy.o diff --git a/roms/u-boot/board/ste/stemmy/README b/roms/u-boot/board/ste/stemmy/README new file mode 100644 index 000000000..81f72426f --- /dev/null +++ b/roms/u-boot/board/ste/stemmy/README @@ -0,0 +1,49 @@ +ST-Ericsson U8500 Samsung "stemmy" board +======================================== + +The "stemmy" board supports Samsung smartphones released with +the ST-Ericsson NovaThor U8500 SoC, e.g. + + - Samsung Galaxy S III mini (GT-I8190) "golden" + - Samsung Galaxy S Advance (GT-I9070) "janice" + - Samsung Galaxy Xcover 2 (GT-S7710) "skomer" + +and likely others as well (untested). + +At the moment, U-Boot is intended to be chain-loaded from +the original Samsung bootloader, not replacing it entirely. + +Installation +------------ + +1. Setup cross compiler, e.g. export CROSS_COMPILE=arm-none-eabi- +2. make stemmy_defconfig +3. make + +For newer devices (golden and skomer), the U-Boot binary has to be packed into +an Android boot image. janice boots the raw U-Boot binary from the boot partition. + +4. Obtain mkbootimg, e.g. https://android.googlesource.com/platform/system/core/+/refs/tags/android-7.1.2_r37/mkbootimg/mkbootimg +5. mkbootimg \ + --kernel=u-boot.bin \ + --base=0x00000000 \ + --kernel_offset=0x00100000 \ + --ramdisk_offset=0x02000000 \ + --tags_offset=0x00000100 \ + --output=u-boot.img + +6. Enter Samsung download mode (press Power + Home + Volume Down) +7. Flash U-Boot image to Android boot partition using Heimdall: + https://gitlab.com/BenjaminDobell/Heimdall + + heimdall flash --Kernel u-boot.(bin|img) + +8. After reboot U-Boot prompt should appear via UART. + +UART +---- + +UART is available through the micro USB port, similar to the Carkit standard. +With a ~619kOhm resistor between ID and GND, 1.8V RX/TX is available at D+/D-. + +Make sure to connect the UART cable *before* turning on the phone. diff --git a/roms/u-boot/board/ste/stemmy/stemmy.c b/roms/u-boot/board/ste/stemmy/stemmy.c new file mode 100644 index 000000000..b9b2a6fdd --- /dev/null +++ b/roms/u-boot/board/ste/stemmy/stemmy.c @@ -0,0 +1,20 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Copyright (C) 2019 Stephan Gerhold <stephan@gerhold.net> + */ +#include <common.h> +#include <init.h> +#include <asm/global_data.h> + +DECLARE_GLOBAL_DATA_PTR; + +int dram_init(void) +{ + gd->ram_size = get_ram_size(CONFIG_SYS_SDRAM_BASE, CONFIG_SYS_SDRAM_SIZE); + return 0; +} + +int board_init(void) +{ + return 0; +} |