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arm: mvebu: Implement return_to_bootrom() via U-Boot's SPL framework

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U-Boot's SPL framework already has an API for loading U-Boot via
BootROM.

Implement the function board_return_to_bootrom() for mvebu SPL code.

Signed-off-by: Pali Rohár <pali@kernel.org>
Reviewed-by: Marek Behún <marek.behun@nic.cz>
Reviewed-by: Stefan Roese <sr@denx.de>
Reviewed-by: Chris Packham <judge.packham@gmail.com>
Tested-by: Chris Packham <judge.packham@gmail.com>
This commit is contained in:
Pali Rohár 2021-07-23 11:14:25 +02:00 committed by Stefan Roese
parent e1cd0d424c
commit 9d0225b7fa
2 changed files with 16 additions and 0 deletions
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4
arch/arm/mach-mvebu/Kconfig
View file

@ -257,6 +257,7 @@ config MVEBU_SPL_BOOT_DEVICE_SPI
select SPL_SPI_FLASH_SUPPORT
select SPL_SPI_LOAD
select SPL_SPI_SUPPORT
select SPL_BOOTROM_SUPPORT
config MVEBU_SPL_BOOT_DEVICE_MMC
bool "SDIO/MMC card"
@ -267,14 +268,17 @@ config MVEBU_SPL_BOOT_DEVICE_MMC
select SPL_GPIO
select SPL_LIBDISK_SUPPORT
select SPL_MMC_SUPPORT
select SPL_BOOTROM_SUPPORT
config MVEBU_SPL_BOOT_DEVICE_SATA
bool "SATA"
select SPL_SATA_SUPPORT
select SPL_LIBDISK_SUPPORT
select SPL_BOOTROM_SUPPORT
config MVEBU_SPL_BOOT_DEVICE_UART
bool "UART"
select SPL_BOOTROM_SUPPORT
endchoice

12
arch/arm/mach-mvebu/spl.c
View file

@ -79,6 +79,18 @@ u32 spl_boot_device(void)
return get_boot_device();
}
int board_return_to_bootrom(struct spl_image_info *spl_image,
struct spl_boot_device *bootdev)
{
u32 *regs = *(u32 **)CONFIG_SPL_BOOTROM_SAVE;
printf("Returning to BootROM (return address 0x%08x)...\n", regs[13]);
return_to_bootrom();
/* NOTREACHED - return_to_bootrom() does not return */
hang();
}
void board_init_f(ulong dummy)
{
int ret;