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1bb973b4db
Previously, few Amlogic devices supported EFI capsule updates. Generally only the Libre Computer ones with SPI flash supported it, thanks to board-specific code. This commit commonises capsule update support across supported Amlogic boards. Similar to Qualcomm's support for it, the dfu string and firmware name is automatically generated at runtime depending on which device we are booted from. Right now this supports flashing to the eMMC/SD and SPI flash. As usual, the capsule UUID is automatically generated. You can get it by enabling CONFIG_CMD_EFIDEBUG and running: => efidebug capsule esrt ======================================== ESRT: fw_resource_count=1 ESRT: fw_resource_count_max=1 ESRT: fw_resource_version=1 [entry 0]============================== ESRT: fw_class=796180D4-AAB2-50F1-B16A-53DFF9CA89B2 ESRT: fw_type=unknown ESRT: fw_version=0 ESRT: lowest_supported_fw_version=0 ESRT: capsule_flags=0 ESRT: last_attempt_version=0 ESRT: last_attempt_status=success ======================================== Reviewed-by: Evgeny Bachinin <EABachinin@salutedevices.com> Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org> Signed-off-by: Ferass El Hafidi <funderscore@postmarketos.org> Link: https://patch.msgid.link/20251211-meson-capsule-v4-1-59f126ba4115@postmarketos.org Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
62 lines
1.7 KiB
C
62 lines
1.7 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright (c) 2025, Ferass El Hafidi <funderscore@postmarketos.org>
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*/
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#include <asm/arch/boot.h>
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#include <dm.h>
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#include <efi_loader.h>
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#include <mmc.h>
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/*
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* To be able to support multiple devices and flash to the correct one we need
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* to automatically generate the dfu_string and fw_name to match the device we
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* are booted from. This is done by meson_setup_capsule() which is then called
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* in board_late_init(). Right now we support EFI capsule updates on SPI flash,
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* eMMC and SD cards.
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*/
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struct efi_fw_image fw_images[] = {
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{
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.image_index = 1,
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},
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};
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struct efi_capsule_update_info update_info = {
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.dfu_string = NULL, /* to be set in meson_capsule_setup */
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.num_images = ARRAY_SIZE(fw_images),
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.images = fw_images,
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};
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/*
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* TODO: Support usecase e.g. FIT image on eMMC + SPL on SD.
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*/
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void meson_setup_capsule(void)
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{
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static char dfu_string[32] = { 0 };
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int mmc_devnum = 0; /* mmc0 => SD card */
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u32 max_size = 0x2000; /* 4 MB (MMC sectors are 512 bytes each) */
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u32 offset = 0x1; /* offset for flashing to eMMC/SD */
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int boot_device = meson_get_boot_device();
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switch (boot_device) {
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case BOOT_DEVICE_EMMC:
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mmc_devnum = 1; /* mmc1 is always eMMC */
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fallthrough;
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case BOOT_DEVICE_SD:
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snprintf(dfu_string, 32, "mmc %d=u-boot.bin raw %d %d", mmc_devnum, offset, max_size);
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fw_images[0].fw_name = u"U_BOOT_MESON_MMC";
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break;
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case BOOT_DEVICE_SPI:
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/* We assume there's only one SPI flash */
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fw_images[0].fw_name = u"U_BOOT_MESON_SPI";
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snprintf(dfu_string, 32, "sf 0:0=u-boot.bin raw 0 %d", max_size);
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break;
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default:
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debug("setup_capsule: Boot device %d unsupported\n", boot_device);
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return;
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}
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debug("EFI Capsule DFU string: %s", dfu_string);
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update_info.dfu_string = dfu_string;
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}
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