[PATCH v6 17/25] spl: Convert mmc to spl_load
Sean Anderson
seanga2 at gmail.com
Mon Nov 6 03:25:55 CET 2023
This converts the mmc loader to spl_load. Legacy images are handled by
spl_load (via spl_parse_image_header), so mmc_load_legacy can be
omitted. To accurately determine whether mmc_load_image_raw_sector is used
(which might not be the case if SYS_MMCSD_FS_BOOT is enabled), we introduce
a helper config SYS_MMCSD_RAW_MODE. This ensures we can inline spl_load
correctly when a board only boots from filesystems. We still need to check
for SPL_MMC, since some boards enable configure raw mode even without MMC
support.
Signed-off-by: Sean Anderson <seanga2 at gmail.com>
---
Changes in v6:
- Add SYS_MMCSD_RAW_MODE to help determine whether SPL_MMC loads
anything directly.
- Explicitly initialize load_info members
Changes in v5:
- Rework to load header in spl_load
common/spl/Kconfig | 8 ++++
common/spl/spl_mmc.c | 89 ++++------------------------------------
include/spl_load.h | 1 +
test/image/spl_load_fs.c | 3 --
4 files changed, 16 insertions(+), 85 deletions(-)
diff --git a/common/spl/Kconfig b/common/spl/Kconfig
index 0bc57d5fedb..b93526904eb 100644
--- a/common/spl/Kconfig
+++ b/common/spl/Kconfig
@@ -481,6 +481,11 @@ config SPL_DISPLAY_PRINT
banner ("U-Boot SPL ..."). This function should be provided by
the board.
+config SPL_SYS_MMCSD_RAW_MODE
+ bool
+ help
+ Support booting from an MMC without a filesystem.
+
config SYS_MMCSD_RAW_MODE_U_BOOT_USE_SECTOR
bool "MMC raw mode: by sector"
default y if ARCH_SUNXI || ARCH_DAVINCI || ARCH_UNIPHIER || \
@@ -490,6 +495,7 @@ config SYS_MMCSD_RAW_MODE_U_BOOT_USE_SECTOR
OMAP44XX || OMAP54XX || AM33XX || AM43XX || \
TARGET_SIFIVE_UNLEASHED || TARGET_SIFIVE_UNMATCHED
select SPL_LOAD_BLOCK if SPL_MMC
+ select SPL_SYS_MMCSD_RAW_MODE if SPL_MMC
help
Use sector number for specifying U-Boot location on MMC/SD in
raw mode.
@@ -527,6 +533,7 @@ config SYS_MMCSD_RAW_MODE_U_BOOT_DATA_PART_OFFSET
config SYS_MMCSD_RAW_MODE_U_BOOT_USE_PARTITION
bool "MMC Raw mode: by partition"
select SPL_LOAD_BLOCK if SPL_MMC
+ select SPL_SYS_MMCSD_RAW_MODE if SPL_MMC
help
Use a partition for loading U-Boot when using MMC/SD in raw mode.
@@ -1114,6 +1121,7 @@ config SPL_FALCON_BOOT_MMCSD
bool "Enable Falcon boot from MMC or SD media"
depends on SPL_OS_BOOT && SPL_MMC
select SPL_LOAD_BLOCK
+ select SPL_SYS_MMCSD_RAW_MODE
help
Select this if the Falcon mode OS image mode is on MMC or SD media.
diff --git a/common/spl/spl_mmc.c b/common/spl/spl_mmc.c
index 91272c03d3f..3d032bb27ce 100644
--- a/common/spl/spl_mmc.c
+++ b/common/spl/spl_mmc.c
@@ -8,9 +8,9 @@
#include <common.h>
#include <dm.h>
#include <log.h>
-#include <mapmem.h>
#include <part.h>
#include <spl.h>
+#include <spl_load.h>
#include <linux/compiler.h>
#include <errno.h>
#include <asm/u-boot.h>
@@ -19,49 +19,6 @@
#include <image.h>
#include <imx_container.h>
-static int mmc_load_legacy(struct spl_image_info *spl_image,
- struct spl_boot_device *bootdev,
- struct mmc *mmc,
- ulong sector, struct legacy_img_hdr *header)
-{
- u32 image_offset_sectors;
- u32 image_size_sectors;
- unsigned long count;
- u32 image_offset;
- int ret;
-
- ret = spl_parse_image_header(spl_image, bootdev, header);
- if (ret)
- return ret;
-
- /* convert offset to sectors - round down */
- image_offset_sectors = spl_image->offset / mmc->read_bl_len;
- /* calculate remaining offset */
- image_offset = spl_image->offset % mmc->read_bl_len;
-
- /* 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_offset_sectors,
- image_size_sectors,
- map_sysmem(spl_image->load_addr,
- image_size_sectors * mmc->read_bl_len));
- debug("read %x sectors to %lx\n", image_size_sectors,
- spl_image->load_addr);
- if (count != image_size_sectors)
- return -EIO;
-
- if (image_offset)
- memmove((void *)(ulong)spl_image->load_addr,
- (void *)(ulong)spl_image->load_addr + image_offset,
- spl_image->size);
-
- return 0;
-}
-
static ulong h_spl_load_read(struct spl_load_info *load, ulong off,
ulong size, void *buf)
{
@@ -87,46 +44,14 @@ int mmc_load_image_raw_sector(struct spl_image_info *spl_image,
struct spl_boot_device *bootdev,
struct mmc *mmc, unsigned long sector)
{
- unsigned long count;
- struct legacy_img_hdr *header;
+ int ret;
struct blk_desc *bd = mmc_get_blk_desc(mmc);
- int ret = 0;
+ struct spl_load_info load;
- 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.priv = bd;
- spl_set_bl_len(&load, bd->blksz);
- load.read = h_spl_load_read;
- ret = spl_load_simple_fit(spl_image, &load,
- sector << bd->log2blksz, header);
- } else if (IS_ENABLED(CONFIG_SPL_LOAD_IMX_CONTAINER) &&
- valid_container_hdr((void *)header)) {
- struct spl_load_info load;
-
- load.priv = bd;
- spl_set_bl_len(&load, bd->blksz);
- load.read = h_spl_load_read;
-
- ret = spl_load_imx_container(spl_image, &load,
- sector << bd->log2blksz);
- } else {
- ret = mmc_load_legacy(spl_image, bootdev, mmc, sector, header);
- }
-
-end:
+ load.priv = bd;
+ spl_set_bl_len(&load, bd->blksz);
+ load.read = h_spl_load_read;
+ ret = spl_load(spl_image, bootdev, &load, 0, sector << bd->log2blksz);
if (ret) {
#ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
puts("mmc_load_image_raw_sector: mmc block read error\n");
diff --git a/include/spl_load.h b/include/spl_load.h
index 5e0460d956d..d55a47ae7d7 100644
--- a/include/spl_load.h
+++ b/include/spl_load.h
@@ -97,6 +97,7 @@ static inline int _spl_load(struct spl_image_info *spl_image,
#define SPL_LOAD_USERS \
IS_ENABLED(CONFIG_SPL_FS_EXT4) + \
IS_ENABLED(CONFIG_SPL_FS_FAT) + \
+ IS_ENABLED(CONFIG_SPL_SYS_MMCSD_RAW_MODE) + \
0
#if SPL_LOAD_USERS > 1
diff --git a/test/image/spl_load_fs.c b/test/image/spl_load_fs.c
index 333df2dfb53..67c19da95e7 100644
--- a/test/image/spl_load_fs.c
+++ b/test/image/spl_load_fs.c
@@ -428,9 +428,6 @@ static int spl_test_mmc(struct unit_test_state *uts, const char *test_name,
if (spl_test_mmc_fs(uts, test_name, type, create_fat, false))
return CMD_RET_FAILURE;
- if (type == LEGACY_LZMA)
- return 0;
-
return do_spl_test_load(uts, test_name, type,
SPL_LOAD_IMAGE_GET(0, BOOT_DEVICE_MMC1,
spl_mmc_load_image),
--
2.37.1
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