mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-10-02 01:20:47 +09:00
80f02019ee
In SPL, all the available mmc devices gets initialized during boot. This might not work in cases where clocks are not available for certain mmc devices(other than boot device) and the support for enabling device might not be ready. Texas Instruments' K3 J721E device having a central system controller (dmsc) is one such example falling in this category. Below is the sequence for the failing scenario: - ROM comes up in SD mode and loads SPL by just initialing SD card. - SPL loads dmsc firmware from SD Card. Since ROM has enabled SD, SPL need not enable the SD, just need to re initialize the card. But SPL is trying to initialize other MMC instances which are in disabled state. Since dmsc firmware is not yet available, devices cannot be enabled. So in SPL, initialize only the mmc device that is needed. Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com> Reviewed-by: Peng Fan <peng.fan@nxp.com>
435 lines
9.9 KiB
C
435 lines
9.9 KiB
C
// SPDX-License-Identifier: GPL-2.0+
|
|
/*
|
|
* (C) Copyright 2010
|
|
* Texas Instruments, <www.ti.com>
|
|
*
|
|
* Aneesh V <aneesh@ti.com>
|
|
*/
|
|
#include <common.h>
|
|
#include <dm.h>
|
|
#include <spl.h>
|
|
#include <linux/compiler.h>
|
|
#include <errno.h>
|
|
#include <asm/u-boot.h>
|
|
#include <errno.h>
|
|
#include <mmc.h>
|
|
#include <image.h>
|
|
|
|
static int mmc_load_legacy(struct spl_image_info *spl_image, struct mmc *mmc,
|
|
ulong sector, struct image_header *header)
|
|
{
|
|
u32 image_size_sectors;
|
|
unsigned long count;
|
|
int ret;
|
|
|
|
ret = spl_parse_image_header(spl_image, header);
|
|
if (ret)
|
|
return ret;
|
|
|
|
/* convert size to sectors - round up */
|
|
image_size_sectors = (spl_image->size + mmc->read_bl_len - 1) /
|
|
mmc->read_bl_len;
|
|
|
|
/* Read the header too to avoid extra memcpy */
|
|
count = blk_dread(mmc_get_blk_desc(mmc), sector, image_size_sectors,
|
|
(void *)(ulong)spl_image->load_addr);
|
|
debug("read %x sectors to %lx\n", image_size_sectors,
|
|
spl_image->load_addr);
|
|
if (count != image_size_sectors)
|
|
return -EIO;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static ulong h_spl_load_read(struct spl_load_info *load, ulong sector,
|
|
ulong count, void *buf)
|
|
{
|
|
struct mmc *mmc = load->dev;
|
|
|
|
return blk_dread(mmc_get_blk_desc(mmc), sector, count, buf);
|
|
}
|
|
|
|
static __maybe_unused
|
|
int mmc_load_image_raw_sector(struct spl_image_info *spl_image,
|
|
struct mmc *mmc, unsigned long sector)
|
|
{
|
|
unsigned long count;
|
|
struct image_header *header;
|
|
struct blk_desc *bd = mmc_get_blk_desc(mmc);
|
|
int ret = 0;
|
|
|
|
header = spl_get_load_buffer(-sizeof(*header), bd->blksz);
|
|
|
|
/* read image header to find the image size & load address */
|
|
count = blk_dread(bd, sector, 1, header);
|
|
debug("hdr read sector %lx, count=%lu\n", sector, count);
|
|
if (count == 0) {
|
|
ret = -EIO;
|
|
goto end;
|
|
}
|
|
|
|
if (IS_ENABLED(CONFIG_SPL_LOAD_FIT) &&
|
|
image_get_magic(header) == FDT_MAGIC) {
|
|
struct spl_load_info load;
|
|
|
|
debug("Found FIT\n");
|
|
load.dev = mmc;
|
|
load.priv = NULL;
|
|
load.filename = NULL;
|
|
load.bl_len = mmc->read_bl_len;
|
|
load.read = h_spl_load_read;
|
|
ret = spl_load_simple_fit(spl_image, &load, sector, header);
|
|
} else if (IS_ENABLED(CONFIG_SPL_LOAD_IMX_CONTAINER)) {
|
|
struct spl_load_info load;
|
|
|
|
load.dev = mmc;
|
|
load.priv = NULL;
|
|
load.filename = NULL;
|
|
load.bl_len = mmc->read_bl_len;
|
|
load.read = h_spl_load_read;
|
|
|
|
ret = spl_load_imx_container(spl_image, &load, sector);
|
|
} else {
|
|
ret = mmc_load_legacy(spl_image, mmc, sector, header);
|
|
}
|
|
|
|
end:
|
|
if (ret) {
|
|
#ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
|
|
puts("mmc_load_image_raw_sector: mmc block read error\n");
|
|
#endif
|
|
return -1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int spl_mmc_get_device_index(u32 boot_device)
|
|
{
|
|
switch (boot_device) {
|
|
case BOOT_DEVICE_MMC1:
|
|
return 0;
|
|
case BOOT_DEVICE_MMC2:
|
|
case BOOT_DEVICE_MMC2_2:
|
|
return 1;
|
|
}
|
|
|
|
#ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
|
|
printf("spl: unsupported mmc boot device.\n");
|
|
#endif
|
|
|
|
return -ENODEV;
|
|
}
|
|
|
|
static int spl_mmc_find_device(struct mmc **mmcp, u32 boot_device)
|
|
{
|
|
int err, mmc_dev;
|
|
|
|
mmc_dev = spl_mmc_get_device_index(boot_device);
|
|
if (mmc_dev < 0)
|
|
return mmc_dev;
|
|
|
|
#if CONFIG_IS_ENABLED(DM_MMC)
|
|
err = mmc_init_device(mmc_dev);
|
|
#else
|
|
err = mmc_initialize(NULL);
|
|
#endif /* DM_MMC */
|
|
if (err) {
|
|
#ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
|
|
printf("spl: could not initialize mmc. error: %d\n", err);
|
|
#endif
|
|
return err;
|
|
}
|
|
*mmcp = find_mmc_device(mmc_dev);
|
|
err = *mmcp ? 0 : -ENODEV;
|
|
if (err) {
|
|
#ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
|
|
printf("spl: could not find mmc device %d. error: %d\n",
|
|
mmc_dev, err);
|
|
#endif
|
|
return err;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
#ifdef CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_USE_PARTITION
|
|
static int mmc_load_image_raw_partition(struct spl_image_info *spl_image,
|
|
struct mmc *mmc, int partition,
|
|
unsigned long sector)
|
|
{
|
|
disk_partition_t info;
|
|
int err;
|
|
|
|
#ifdef CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_USE_PARTITION_TYPE
|
|
int type_part;
|
|
/* Only support MBR so DOS_ENTRY_NUMBERS */
|
|
for (type_part = 1; type_part <= DOS_ENTRY_NUMBERS; type_part++) {
|
|
err = part_get_info(mmc_get_blk_desc(mmc), type_part, &info);
|
|
if (err)
|
|
continue;
|
|
if (info.sys_ind ==
|
|
CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_PARTITION_TYPE) {
|
|
partition = type_part;
|
|
break;
|
|
}
|
|
}
|
|
#endif
|
|
|
|
err = part_get_info(mmc_get_blk_desc(mmc), partition, &info);
|
|
if (err) {
|
|
#ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
|
|
puts("spl: partition error\n");
|
|
#endif
|
|
return -1;
|
|
}
|
|
|
|
#ifdef CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_USE_SECTOR
|
|
return mmc_load_image_raw_sector(spl_image, mmc, info.start + sector);
|
|
#else
|
|
return mmc_load_image_raw_sector(spl_image, mmc, info.start);
|
|
#endif
|
|
}
|
|
#endif
|
|
|
|
#ifdef CONFIG_SPL_OS_BOOT
|
|
static int mmc_load_image_raw_os(struct spl_image_info *spl_image,
|
|
struct mmc *mmc)
|
|
{
|
|
int ret;
|
|
|
|
#if defined(CONFIG_SYS_MMCSD_RAW_MODE_ARGS_SECTOR)
|
|
unsigned long count;
|
|
|
|
count = blk_dread(mmc_get_blk_desc(mmc),
|
|
CONFIG_SYS_MMCSD_RAW_MODE_ARGS_SECTOR,
|
|
CONFIG_SYS_MMCSD_RAW_MODE_ARGS_SECTORS,
|
|
(void *) CONFIG_SYS_SPL_ARGS_ADDR);
|
|
if (count != CONFIG_SYS_MMCSD_RAW_MODE_ARGS_SECTORS) {
|
|
#ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
|
|
puts("mmc_load_image_raw_os: mmc block read error\n");
|
|
#endif
|
|
return -1;
|
|
}
|
|
#endif /* CONFIG_SYS_MMCSD_RAW_MODE_ARGS_SECTOR */
|
|
|
|
ret = mmc_load_image_raw_sector(spl_image, mmc,
|
|
CONFIG_SYS_MMCSD_RAW_MODE_KERNEL_SECTOR);
|
|
if (ret)
|
|
return ret;
|
|
|
|
if (spl_image->os != IH_OS_LINUX) {
|
|
puts("Expected Linux image is not found. Trying to start U-boot\n");
|
|
return -ENOENT;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
#else
|
|
int spl_start_uboot(void)
|
|
{
|
|
return 1;
|
|
}
|
|
static int mmc_load_image_raw_os(struct spl_image_info *spl_image,
|
|
struct mmc *mmc)
|
|
{
|
|
return -ENOSYS;
|
|
}
|
|
#endif
|
|
|
|
#ifdef CONFIG_SYS_MMCSD_FS_BOOT_PARTITION
|
|
static int spl_mmc_do_fs_boot(struct spl_image_info *spl_image, struct mmc *mmc,
|
|
const char *filename)
|
|
{
|
|
int err = -ENOSYS;
|
|
|
|
#ifdef CONFIG_SPL_FS_FAT
|
|
if (!spl_start_uboot()) {
|
|
err = spl_load_image_fat_os(spl_image, mmc_get_blk_desc(mmc),
|
|
CONFIG_SYS_MMCSD_FS_BOOT_PARTITION);
|
|
if (!err)
|
|
return err;
|
|
}
|
|
#ifdef CONFIG_SPL_FS_LOAD_PAYLOAD_NAME
|
|
err = spl_load_image_fat(spl_image, mmc_get_blk_desc(mmc),
|
|
CONFIG_SYS_MMCSD_FS_BOOT_PARTITION,
|
|
filename);
|
|
if (!err)
|
|
return err;
|
|
#endif
|
|
#endif
|
|
#ifdef CONFIG_SPL_FS_EXT4
|
|
if (!spl_start_uboot()) {
|
|
err = spl_load_image_ext_os(spl_image, mmc_get_blk_desc(mmc),
|
|
CONFIG_SYS_MMCSD_FS_BOOT_PARTITION);
|
|
if (!err)
|
|
return err;
|
|
}
|
|
#ifdef CONFIG_SPL_FS_LOAD_PAYLOAD_NAME
|
|
err = spl_load_image_ext(spl_image, mmc_get_blk_desc(mmc),
|
|
CONFIG_SYS_MMCSD_FS_BOOT_PARTITION,
|
|
filename);
|
|
if (!err)
|
|
return err;
|
|
#endif
|
|
#endif
|
|
|
|
#if defined(CONFIG_SPL_FS_FAT) || defined(CONFIG_SPL_FS_EXT4)
|
|
err = -ENOENT;
|
|
#endif
|
|
|
|
return err;
|
|
}
|
|
#else
|
|
static int spl_mmc_do_fs_boot(struct spl_image_info *spl_image, struct mmc *mmc,
|
|
const char *filename)
|
|
{
|
|
return -ENOSYS;
|
|
}
|
|
#endif
|
|
|
|
u32 __weak spl_boot_mode(const u32 boot_device)
|
|
{
|
|
#if defined(CONFIG_SPL_FS_FAT) || defined(CONFIG_SPL_FS_EXT4)
|
|
return MMCSD_MODE_FS;
|
|
#elif defined(CONFIG_SUPPORT_EMMC_BOOT)
|
|
return MMCSD_MODE_EMMCBOOT;
|
|
#else
|
|
return MMCSD_MODE_RAW;
|
|
#endif
|
|
}
|
|
|
|
#ifdef CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_USE_PARTITION
|
|
__weak
|
|
int spl_boot_partition(const u32 boot_device)
|
|
{
|
|
return CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_PARTITION;
|
|
}
|
|
#endif
|
|
|
|
unsigned long __weak spl_mmc_get_uboot_raw_sector(struct mmc *mmc)
|
|
{
|
|
#ifdef CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR
|
|
return CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR;
|
|
#else
|
|
return 0;
|
|
#endif
|
|
}
|
|
|
|
int spl_mmc_load(struct spl_image_info *spl_image,
|
|
struct spl_boot_device *bootdev,
|
|
const char *filename,
|
|
int raw_part,
|
|
unsigned long raw_sect)
|
|
{
|
|
static struct mmc *mmc;
|
|
u32 boot_mode;
|
|
int err = 0;
|
|
__maybe_unused int part;
|
|
|
|
/* Perform peripheral init only once */
|
|
if (!mmc) {
|
|
err = spl_mmc_find_device(&mmc, bootdev->boot_device);
|
|
if (err)
|
|
return err;
|
|
|
|
err = mmc_init(mmc);
|
|
if (err) {
|
|
mmc = NULL;
|
|
#ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
|
|
printf("spl: mmc init failed with error: %d\n", err);
|
|
#endif
|
|
return err;
|
|
}
|
|
}
|
|
|
|
raw_sect = spl_mmc_get_uboot_raw_sector(mmc);
|
|
|
|
boot_mode = spl_boot_mode(bootdev->boot_device);
|
|
err = -EINVAL;
|
|
switch (boot_mode) {
|
|
case MMCSD_MODE_EMMCBOOT:
|
|
/*
|
|
* We need to check what the partition is configured to.
|
|
* 1 and 2 match up to boot0 / boot1 and 7 is user data
|
|
* which is the first physical partition (0).
|
|
*/
|
|
part = (mmc->part_config >> 3) & PART_ACCESS_MASK;
|
|
|
|
if (part == 7)
|
|
part = 0;
|
|
|
|
if (CONFIG_IS_ENABLED(MMC_TINY))
|
|
err = mmc_switch_part(mmc, part);
|
|
else
|
|
err = blk_dselect_hwpart(mmc_get_blk_desc(mmc), part);
|
|
|
|
if (err) {
|
|
#ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
|
|
puts("spl: mmc partition switch failed\n");
|
|
#endif
|
|
return err;
|
|
}
|
|
/* Fall through */
|
|
case MMCSD_MODE_RAW:
|
|
debug("spl: mmc boot mode: raw\n");
|
|
|
|
if (!spl_start_uboot()) {
|
|
err = mmc_load_image_raw_os(spl_image, mmc);
|
|
if (!err)
|
|
return err;
|
|
}
|
|
#ifdef CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_USE_PARTITION
|
|
err = mmc_load_image_raw_partition(spl_image, mmc, raw_part,
|
|
raw_sect);
|
|
if (!err)
|
|
return err;
|
|
#endif
|
|
#ifdef CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_USE_SECTOR
|
|
err = mmc_load_image_raw_sector(spl_image, mmc, raw_sect);
|
|
if (!err)
|
|
return err;
|
|
#endif
|
|
/* If RAW mode fails, try FS mode. */
|
|
case MMCSD_MODE_FS:
|
|
debug("spl: mmc boot mode: fs\n");
|
|
|
|
err = spl_mmc_do_fs_boot(spl_image, mmc, filename);
|
|
if (!err)
|
|
return err;
|
|
|
|
break;
|
|
#ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
|
|
default:
|
|
puts("spl: mmc: wrong boot mode\n");
|
|
#endif
|
|
}
|
|
|
|
return err;
|
|
}
|
|
|
|
int spl_mmc_load_image(struct spl_image_info *spl_image,
|
|
struct spl_boot_device *bootdev)
|
|
{
|
|
return spl_mmc_load(spl_image, bootdev,
|
|
#ifdef CONFIG_SPL_FS_LOAD_PAYLOAD_NAME
|
|
CONFIG_SPL_FS_LOAD_PAYLOAD_NAME,
|
|
#else
|
|
NULL,
|
|
#endif
|
|
#ifdef CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_PARTITION
|
|
spl_boot_partition(bootdev->boot_device),
|
|
#else
|
|
0,
|
|
#endif
|
|
#ifdef CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR
|
|
CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR);
|
|
#else
|
|
0);
|
|
#endif
|
|
}
|
|
|
|
SPL_LOAD_IMAGE_METHOD("MMC1", 0, BOOT_DEVICE_MMC1, spl_mmc_load_image);
|
|
SPL_LOAD_IMAGE_METHOD("MMC2", 0, BOOT_DEVICE_MMC2, spl_mmc_load_image);
|
|
SPL_LOAD_IMAGE_METHOD("MMC2_2", 0, BOOT_DEVICE_MMC2_2, spl_mmc_load_image);
|