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-rw-r--r--common/spl/spl_ext.c139
1 files changed, 139 insertions, 0 deletions
diff --git a/common/spl/spl_ext.c b/common/spl/spl_ext.c
new file mode 100644
index 0000000..d9eba5a
--- /dev/null
+++ b/common/spl/spl_ext.c
@@ -0,0 +1,139 @@
+/*
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <common.h>
+#include <spl.h>
+#include <asm/u-boot.h>
+#include <ext4fs.h>
+#include <image.h>
+
+#ifdef CONFIG_SPL_EXT_SUPPORT
+int spl_load_image_ext(block_dev_desc_t *block_dev,
+ int partition,
+ const char *filename)
+{
+ s32 err;
+ struct image_header *header;
+ int filelen;
+ disk_partition_t part_info = {};
+
+ header = (struct image_header *)(CONFIG_SYS_TEXT_BASE -
+ sizeof(struct image_header));
+
+ if (get_partition_info(block_dev,
+ partition, &part_info)) {
+ printf("spl: no partition table found\n");
+ return -1;
+ }
+
+ ext4fs_set_blk_dev(block_dev, &part_info);
+
+ err = ext4fs_mount(0);
+ if (!err) {
+#ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
+ printf("%s: ext4fs mount err - %d\n", __func__, err);
+#endif
+ goto end;
+ }
+
+ filelen = err = ext4fs_open(filename);
+ if (err < 0) {
+ puts("spl: ext4fs_open failed\n");
+ goto end;
+ }
+ err = ext4fs_read((char *)header, sizeof(struct image_header));
+ if (err <= 0) {
+ puts("spl: ext4fs_read failed\n");
+ goto end;
+ }
+
+ spl_parse_image_header(header);
+
+ err = ext4fs_read((char *)spl_image.load_addr, filelen);
+
+end:
+#ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
+ if (err <= 0)
+ printf("%s: error reading image %s, err - %d\n",
+ __func__, filename, err);
+#endif
+
+ return err <= 0;
+}
+
+#ifdef CONFIG_SPL_OS_BOOT
+int spl_load_image_ext_os(block_dev_desc_t *block_dev, int partition)
+{
+ int err;
+ int filelen;
+ disk_partition_t part_info = {};
+ __maybe_unused char *file;
+
+ if (get_partition_info(block_dev,
+ partition, &part_info)) {
+ printf("spl: no partition table found\n");
+ return -1;
+ }
+
+ ext4fs_set_blk_dev(block_dev, &part_info);
+
+ err = ext4fs_mount(0);
+ if (!err) {
+#ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
+ printf("%s: ext4fs mount err - %d\n", __func__, err);
+#endif
+ return -1;
+ }
+
+#if defined(CONFIG_SPL_ENV_SUPPORT) && defined(CONFIG_SPL_OS_BOOT)
+ file = getenv("falcon_args_file");
+ if (file) {
+ filelen = err = ext4fs_open(file);
+ if (err < 0) {
+ puts("spl: ext4fs_open failed\n");
+ goto defaults;
+ }
+ err = ext4fs_read((void *)CONFIG_SYS_SPL_ARGS_ADDR, filelen);
+ if (err <= 0) {
+ printf("spl: error reading image %s, err - %d, falling back to default\n",
+ file, err);
+ goto defaults;
+ }
+ file = getenv("falcon_image_file");
+ if (file) {
+ err = spl_load_image_ext(block_dev, partition, file);
+ if (err != 0) {
+ puts("spl: falling back to default\n");
+ goto defaults;
+ }
+
+ return 0;
+ } else {
+ puts("spl: falcon_image_file not set in environment, falling back to default\n");
+ }
+ } else {
+ puts("spl: falcon_args_file not set in environment, falling back to default\n");
+ }
+
+defaults:
+#endif
+
+ filelen = err = ext4fs_open(CONFIG_SPL_FS_LOAD_ARGS_NAME);
+ if (err < 0)
+ puts("spl: ext4fs_open failed\n");
+
+ err = ext4fs_read((void *)CONFIG_SYS_SPL_ARGS_ADDR, filelen);
+ if (err <= 0) {
+#ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
+ printf("%s: error reading image %s, err - %d\n",
+ __func__, CONFIG_SPL_FS_LOAD_ARGS_NAME, err);
+#endif
+ return -1;
+ }
+
+ return spl_load_image_ext(block_dev, partition,
+ CONFIG_SPL_FS_LOAD_KERNEL_NAME);
+}
+#endif
+#endif