diff options
| author | Patrick Delaunay <patrick.delaunay@st.com> | 2018-03-20 10:54:54 +0100 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2018-04-06 20:45:28 -0400 |
| commit | 11dfd1a331e915b17f3dd25c4ca98382d400719e (patch) | |
| tree | 7184ceb7682e49405c1a00dda1d1eb1f646c20ab /include/configs/stm32mp1.h | |
| parent | 08772f6e79af7b5e7ce4a7f230b7d6f69352a8ec (diff) | |
stm32mp1: select boot device and partition
Bootrom loads SPL from SDCARD or eMMC
according BootPin selection.
Then SPL loads U-Boot on the same mmc device
with the following predefined GPT partitioning:
on SDCARD: gpt partitioning
1: SPL
2: SPL#2
3: U-Boot
4: bootable partition
on eMMC:
The 2 boot partitions are used for SPL (2 copy)
boot1: SPL
boot2: SPL#2
The user partition use gpt partitioning
1: U-Boot
2: bootable partition
This patch select the correct SPL partition
(3 for SDCARD on mmc0 and 1 for eMMC on mmc1)
according the BootRom information saved in TAMP register
and based on configuration flasg:
- CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_PARTITION
=> for BOOT_DEVICE_MMC1 or mmc 0 in U-Boot
- CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_PARTITION_MMC2 (new)
=> for BOOT_DEVICE_MMC2 or mmc 1 in U-Boot
And the correct boot_targets is selected according the environment
variables boot_device and boot_instance, with preboot command,
to search the bootable partition with kernel on this device
(generic distro support).
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Diffstat (limited to 'include/configs/stm32mp1.h')
| -rw-r--r-- | include/configs/stm32mp1.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/include/configs/stm32mp1.h b/include/configs/stm32mp1.h index 6281dd5387..815910128e 100644 --- a/include/configs/stm32mp1.h +++ b/include/configs/stm32mp1.h @@ -82,6 +82,12 @@ #include <config_distro_bootcmd.h> +#define STM32MP_PREBOOT \ + "echo \"Boot over ${boot_device}${boot_instance}!\"; " \ + "if test \"${boot_device}\" = \"mmc\"; then " \ + "env set boot_targets \"mmc${boot_instance}\"; "\ + "fi;" + #define CONFIG_EXTRA_ENV_SETTINGS \ "scriptaddr=0xC0000000\0" \ "pxefile_addr_r=0xC0000000\0" \ @@ -90,6 +96,7 @@ "ramdisk_addr_r=0xC4100000\0" \ "fdt_high=0xffffffff\0" \ "initrd_high=0xffffffff\0" \ + "preboot=" STM32MP_PREBOOT "\0" \ BOOTENV #endif /* ifndef CONFIG_SPL_BUILD */ |