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// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (c) 2025, Ferass El Hafidi <[email protected]>
*/
#include <asm/arch/boot.h>
#include <dm.h>
#include <efi_loader.h>
#include <mmc.h>
/*
* To be able to support multiple devices and flash to the correct one we need
* to automatically generate the dfu_string and fw_name to match the device we
* are booted from. This is done by meson_setup_capsule() which is then called
* in board_late_init(). Right now we support EFI capsule updates on SPI flash,
* eMMC and SD cards.
*/
struct efi_fw_image fw_images[] = {
{
.image_index = 1,
},
};
struct efi_capsule_update_info update_info = {
.dfu_string = NULL, /* to be set in meson_capsule_setup */
.num_images = ARRAY_SIZE(fw_images),
.images = fw_images,
};
/*
* TODO: Support usecase e.g. FIT image on eMMC + SPL on SD.
*/
void meson_setup_capsule(void)
{
static char dfu_string[32] = { 0 };
int mmc_devnum = 0; /* mmc0 => SD card */
u32 max_size = 0x2000; /* 4 MB (MMC sectors are 512 bytes each) */
u32 offset = 0x1; /* offset for flashing to eMMC/SD */
int boot_device = meson_get_boot_device();
switch (boot_device) {
case BOOT_DEVICE_EMMC:
mmc_devnum = 1; /* mmc1 is always eMMC */
fallthrough;
case BOOT_DEVICE_SD:
snprintf(dfu_string, 32, "mmc %d=u-boot.bin raw %d %d", mmc_devnum, offset, max_size);
fw_images[0].fw_name = u"U_BOOT_MESON_MMC";
break;
case BOOT_DEVICE_SPI:
/* We assume there's only one SPI flash */
fw_images[0].fw_name = u"U_BOOT_MESON_SPI";
snprintf(dfu_string, 32, "sf 0:0=u-boot.bin raw 0 %d", max_size);
break;
default:
debug("setup_capsule: Boot device %d unsupported\n", boot_device);
return;
}
debug("EFI Capsule DFU string: %s", dfu_string);
update_info.dfu_string = dfu_string;
}
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