board: amd: Add capsule and FWU support

Add configure_capsule_updates() supporting MMC, SD and QSPI/OSPI
boot modes for DFU string generation. Add set_dfu_alt_info() for
FWU multi-bank mode to generate DFU alt info from NOR flash MTD
partitions. Add XILINX_BOOT_IMAGE_GUID for the capsule updatable
firmware image.

Signed-off-by: Padmarao Begari <padmarao.begari@amd.com>
Signed-off-by: Michal Simek <michal.simek@amd.com>
Link: https://lore.kernel.org/r/20260514102601.1759779-5-padmarao.begari@amd.com
This commit is contained in:
Padmarao Begari
2026-06-08 10:50:05 +02:00
committed by Michal Simek
parent 371a6c1744
commit 818c06faa1
2 changed files with 135 additions and 1 deletions
+130 -1
View File
@@ -1,17 +1,24 @@
// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (C) 2021 - 2022, Xilinx, Inc.
* Copyright (C) 2022 - 2025, Advanced Micro Devices, Inc.
* Copyright (C) 2022 - 2026, Advanced Micro Devices, Inc.
*
* Michal Simek <michal.simek@amd.com>
*/
#include <cpu_func.h>
#include <dfu.h>
#include <env.h>
#include <efi_loader.h>
#include <fdtdec.h>
#include <fwu.h>
#include <init.h>
#include <env_internal.h>
#include <log.h>
#include <malloc.h>
#include <memalign.h>
#include <mmc.h>
#include <mtd.h>
#include <time.h>
#include <asm/cache.h>
#include <asm/global_data.h>
@@ -26,6 +33,7 @@
#include "../../xilinx/common/board.h"
#include <linux/bitfield.h>
#include <linux/sizes.h>
#include <debug_uart.h>
#include <generated/dt.h>
#include <linux/ioport.h>
@@ -348,6 +356,10 @@ int board_late_init(void)
int ret;
u32 multiboot;
if (IS_ENABLED(CONFIG_EFI_HAVE_CAPSULE_SUPPORT) &&
!IS_ENABLED(CONFIG_FWU_MULTI_BANK_UPDATE))
configure_capsule_updates();
if (!(gd->flags & GD_FLG_ENV_DEFAULT)) {
debug("Saved variables - Skipping\n");
return 0;
@@ -476,3 +488,120 @@ enum env_location env_get_location(enum env_operation op, int prio)
}
}
#endif
#define DFU_ALT_BUF_LEN SZ_1K
#if defined(CONFIG_EFI_HAVE_CAPSULE_SUPPORT) && \
!defined(CONFIG_FWU_MULTI_BANK_UPDATE)
static void mtd_found_part(u32 *base, u32 *size)
{
struct mtd_info *part, *mtd;
mtd_probe_devices();
mtd = get_mtd_device_nm("nor0");
if (!IS_ERR_OR_NULL(mtd)) {
list_for_each_entry(part, &mtd->partitions, node) {
debug("0x%012llx-0x%012llx : \"%s\"\n",
part->offset, part->offset + part->size,
part->name);
if (*base >= part->offset &&
*base < part->offset + part->size) {
debug("Found my partition: %d/%s\n",
part->index, part->name);
*base = part->offset;
*size = part->size;
break;
}
}
}
}
void configure_capsule_updates(void)
{
int bootseq = 0, len = 0;
u32 multiboot = versal2_multi_boot();
u32 bootmode = versal2_get_bootmode();
ALLOC_CACHE_ALIGN_BUFFER(char, buf, DFU_ALT_BUF_LEN);
memset(buf, 0, DFU_ALT_BUF_LEN);
multiboot = env_get_hex("multiboot", multiboot);
switch (bootmode) {
case EMMC_MODE:
case SD_MODE:
case SD1_LSHFT_MODE:
case SD_MODE1:
bootseq = mmc_get_env_dev();
len += snprintf(buf + len, DFU_ALT_BUF_LEN, "mmc %d=boot",
bootseq);
if (multiboot)
len += snprintf(buf + len, DFU_ALT_BUF_LEN,
"%04d", multiboot);
len += snprintf(buf + len, DFU_ALT_BUF_LEN, ".bin fat %d 1",
bootseq);
break;
case QSPI_MODE_24BIT:
case QSPI_MODE_32BIT:
case OSPI_MODE:
{
u32 base = multiboot * SZ_32K;
u32 size = 0x1500000;
u32 limit = size;
mtd_found_part(&base, &limit);
len += snprintf(buf + len, DFU_ALT_BUF_LEN,
"sf 0:0=boot.bin raw 0x%x 0x%x",
base, limit);
}
break;
default:
return;
}
update_info.dfu_string = strdup(buf);
debug("Capsule DFU: %s\n", update_info.dfu_string);
}
#endif
#if defined(CONFIG_FWU_MULTI_BANK_UPDATE)
/* Generate dfu_alt_info from partitions */
void set_dfu_alt_info(char *interface, char *devstr)
{
int ret;
struct mtd_info *mtd;
/*
* It is called multiple times for every image
* per bank that's why enough to set it up once.
*/
if (env_get("dfu_alt_info"))
return;
ALLOC_CACHE_ALIGN_BUFFER(char, buf, DFU_ALT_BUF_LEN);
memset(buf, 0, DFU_ALT_BUF_LEN);
mtd_probe_devices();
mtd = get_mtd_device_nm("nor0");
if (IS_ERR_OR_NULL(mtd))
return;
ret = fwu_gen_alt_info_from_mtd(buf, DFU_ALT_BUF_LEN, mtd);
if (ret < 0) {
log_err("Error: Failed to generate dfu_alt_info. (%d)\n", ret);
return;
}
log_debug("Make dfu_alt_info: '%s'\n", buf);
env_set("dfu_alt_info", buf);
}
#endif
+5
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@@ -23,6 +23,11 @@
#define CFG_SYS_BAUDRATE_TABLE \
{ 4800, 9600, 19200, 38400, 57600, 115200 }
/* GUID for capsule updatable firmware image */
#define XILINX_BOOT_IMAGE_GUID \
EFI_GUID(0xed9e7fcf, 0x47b3, 0x40cd, 0xb6, 0xe3, \
0x56, 0x5f, 0x14, 0x67, 0x6d, 0x82)
#if defined(CONFIG_CMD_DFU)
#define DFU_DEFAULT_POLL_TIMEOUT 300
#define DFU_ALT_INFO_RAM \