[PATCH v6 18/25] spl: Convert nand to spl_load
Sean Anderson
seanga2 at gmail.com
Mon Nov 6 03:25:56 CET 2023
This converts the nand load method to use spl_load. nand_page_size may not
be valid until after nand_spl_load_image is called (see e.g. fsl_ifc_spl),
so we set bl_len in spl_nand_read. Since spl_load reads the header for us,
we can remove that argument from spl_nand_load_element.
There are two possible regressions which could result from this commit.
First, we ask for a negative address from spl_get_load_buffer. That is,
instead of
header = spl_get_load_buffer(0, sizeof(*header));
we do
header = spl_get_load_buffer(-sizeof(*header), sizeof(*header));
this could cause a problem if spl_get_load_buffer does not return valid
memory for negative offsets. Second, we now set bl_len for legacy images.
This can cause memory up to a bl_len - 1 before the image load address to
be written, which might not have been the case before. If this turns out to
be a problem, we can add an option for a bounce buffer.
We can't load FITs with external data with SPL_LOAD_FIT_FULL, so disable the
test in that case. No boards enable SPL_NAND_SUPPORT and SPL_LOAD_FIT_FULL, so
this is not a regression.
Signed-off-by: Sean Anderson <seanga2 at gmail.com>
---
Changes in v6:
- New
common/spl/spl_nand.c | 70 +++++++++-----------------------------
include/spl_load.h | 1 +
test/image/spl_load_nand.c | 2 ++
3 files changed, 19 insertions(+), 54 deletions(-)
diff --git a/common/spl/spl_nand.c b/common/spl/spl_nand.c
index 91fa7674f17..3b0a1524238 100644
--- a/common/spl/spl_nand.c
+++ b/common/spl/spl_nand.c
@@ -10,6 +10,7 @@
#include <imx_container.h>
#include <log.h>
#include <spl.h>
+#include <spl_load.h>
#include <asm/io.h>
#include <mapmem.h>
#include <nand.h>
@@ -59,6 +60,7 @@ static ulong spl_nand_read(struct spl_load_info *load, ulong offs, ulong size,
sector = *(int *)load->priv;
offs = sector + nand_spl_adjust_offset(sector, offs - sector);
err = nand_spl_load_image(offs, size, dst);
+ spl_set_bl_len(load, nand_page_size());
if (err)
return 0;
@@ -66,60 +68,20 @@ static ulong spl_nand_read(struct spl_load_info *load, ulong offs, ulong size,
}
static int spl_nand_load_element(struct spl_image_info *spl_image,
- struct spl_boot_device *bootdev,
- int offset, struct legacy_img_hdr *header)
+ struct spl_boot_device *bootdev, int offset)
{
- int bl_len;
- int err;
+ struct spl_load_info load;
- err = nand_spl_load_image(offset, sizeof(*header), (void *)header);
- if (err)
- return err;
-
- bl_len = nand_page_size();
- if (IS_ENABLED(CONFIG_SPL_LOAD_FIT) &&
- image_get_magic(header) == FDT_MAGIC) {
- struct spl_load_info load;
-
- debug("Found FIT\n");
- load.priv = &offset;
- spl_set_bl_len(&load, bl_len);
- load.read = spl_nand_read;
- return spl_load_simple_fit(spl_image, &load, offset, header);
- } else if (IS_ENABLED(CONFIG_SPL_LOAD_IMX_CONTAINER) &&
- valid_container_hdr((void *)header)) {
- struct spl_load_info load;
-
- load.priv = &offset;
- spl_set_bl_len(&load, bl_len);
- load.read = spl_nand_read;
- return spl_load_imx_container(spl_image, &load, offset);
- } else if (IS_ENABLED(CONFIG_SPL_LEGACY_IMAGE_FORMAT) &&
- image_get_magic(header) == IH_MAGIC) {
- struct spl_load_info load;
-
- debug("Found legacy image\n");
- load.priv = &offset;
- spl_set_bl_len(&load, IS_ENABLED(CONFIG_SPL_LZMA) ? bl_len : 1);
- load.read = spl_nand_read;
- return spl_load_legacy_img(spl_image, bootdev, &load, offset, header);
- } else {
- err = spl_parse_image_header(spl_image, bootdev, header);
- if (err)
- return err;
- return nand_spl_load_image(offset, spl_image->size,
- map_sysmem(spl_image->load_addr,
- spl_image->size));
- }
+ load.priv = &offset;
+ spl_set_bl_len(&load, 1);
+ load.read = spl_nand_read;
+ return spl_load(spl_image, bootdev, &load, 0, offset);
}
static int spl_nand_load_image(struct spl_image_info *spl_image,
struct spl_boot_device *bootdev)
{
int err;
- struct legacy_img_hdr *header;
- int *src __attribute__((unused));
- int *dst __attribute__((unused));
#ifdef CONFIG_SPL_NAND_SOFTECC
debug("spl: nand - using sw ecc\n");
@@ -128,10 +90,12 @@ static int spl_nand_load_image(struct spl_image_info *spl_image,
#endif
nand_init();
- header = spl_get_load_buffer(0, sizeof(*header));
-
#if CONFIG_IS_ENABLED(OS_BOOT)
if (!spl_start_uboot()) {
+ int *src, *dst;
+ struct legacy_img_hdr *header =
+ spl_get_load_buffer(0, sizeof(*header));
+
/*
* load parameter image
* load to temp position since nand_spl_load_image reads
@@ -174,20 +138,18 @@ static int spl_nand_load_image(struct spl_image_info *spl_image,
}
#endif
#ifdef CONFIG_NAND_ENV_DST
- spl_nand_load_element(spl_image, bootdev, CONFIG_ENV_OFFSET, header);
+ spl_nand_load_element(spl_image, bootdev, CONFIG_ENV_OFFSET);
#ifdef CONFIG_ENV_OFFSET_REDUND
- spl_nand_load_element(spl_image, bootdev, CONFIG_ENV_OFFSET_REDUND, header);
+ spl_nand_load_element(spl_image, bootdev, CONFIG_ENV_OFFSET_REDUND);
#endif
#endif
/* Load u-boot */
- err = spl_nand_load_element(spl_image, bootdev, spl_nand_get_uboot_raw_page(),
- header);
+ err = spl_nand_load_element(spl_image, bootdev, spl_nand_get_uboot_raw_page());
#ifdef CONFIG_SYS_NAND_U_BOOT_OFFS_REDUND
#if CONFIG_SYS_NAND_U_BOOT_OFFS != CONFIG_SYS_NAND_U_BOOT_OFFS_REDUND
if (err)
err = spl_nand_load_element(spl_image, bootdev,
- CONFIG_SYS_NAND_U_BOOT_OFFS_REDUND,
- header);
+ CONFIG_SYS_NAND_U_BOOT_OFFS_REDUND);
#endif
#endif
nand_deselect();
diff --git a/include/spl_load.h b/include/spl_load.h
index d55a47ae7d7..38294a21ad0 100644
--- a/include/spl_load.h
+++ b/include/spl_load.h
@@ -98,6 +98,7 @@ static inline int _spl_load(struct spl_image_info *spl_image,
IS_ENABLED(CONFIG_SPL_FS_EXT4) + \
IS_ENABLED(CONFIG_SPL_FS_FAT) + \
IS_ENABLED(CONFIG_SPL_SYS_MMCSD_RAW_MODE) + \
+ (IS_ENABLED(CONFIG_SPL_NAND_SUPPORT) && !IS_ENABLED(CONFIG_SPL_UBI)) + \
0
#if SPL_LOAD_USERS > 1
diff --git a/test/image/spl_load_nand.c b/test/image/spl_load_nand.c
index 30179de98e7..ec242207948 100644
--- a/test/image/spl_load_nand.c
+++ b/test/image/spl_load_nand.c
@@ -51,4 +51,6 @@ SPL_IMG_TEST(spl_test_nand, LEGACY, DM_FLAGS);
SPL_IMG_TEST(spl_test_nand, LEGACY_LZMA, DM_FLAGS);
SPL_IMG_TEST(spl_test_nand, IMX8, DM_FLAGS);
SPL_IMG_TEST(spl_test_nand, FIT_INTERNAL, DM_FLAGS);
+#if !IS_ENABLED(CONFIG_SPL_LOAD_FIT_FULL)
SPL_IMG_TEST(spl_test_nand, FIT_EXTERNAL, DM_FLAGS);
+#endif
--
2.37.1
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