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| author | Tom Rini <trini@ti.com> | 2014-03-28 12:03:42 -0400 |
|---|---|---|
| committer | Tom Rini <trini@ti.com> | 2014-04-17 14:39:54 -0400 |
| commit | ae1590ed52256bb3bbb45506c005020075fbe49f (patch) | |
| tree | a8a6a5c8b0e29813b2d26cc4d4a7c7badb631960 | |
| parent | 0092fa01a7d74399a66dec1ff2cf7301f40ac60a (diff) | |
| download | u-boot-imx-ae1590ed52256bb3bbb45506c005020075fbe49f.zip u-boot-imx-ae1590ed52256bb3bbb45506c005020075fbe49f.tar.gz u-boot-imx-ae1590ed52256bb3bbb45506c005020075fbe49f.tar.bz2 | |
spl_mmc/CONFIG_SPL_OS_BOOT: Allow environment to determine what to boot
We add two new environment variables, falcon_args_file and
falcon_image_file, which when set will override the compiled in default
values for falcon mode.
Signed-off-by: Tom Rini <trini@ti.com>
| -rw-r--r-- | common/spl/spl_fat.c | 27 | ||||
| -rw-r--r-- | doc/README.falcon | 4 |
2 files changed, 31 insertions, 0 deletions
diff --git a/common/spl/spl_fat.c b/common/spl/spl_fat.c index 1e532d5..56be943 100644 --- a/common/spl/spl_fat.c +++ b/common/spl/spl_fat.c @@ -74,11 +74,38 @@ end: int spl_load_image_fat_os(block_dev_desc_t *block_dev, int partition) { int err; + __maybe_unused char *file; err = spl_register_fat_device(block_dev, partition); if (err) return err; +#if defined(CONFIG_SPL_ENV_SUPPORT) && defined(CONFIG_SPL_OS_BOOT) + file = getenv("falcon_args_file"); + if (file) { + err = file_fat_read(file, (void *)CONFIG_SYS_SPL_ARGS_ADDR, 0); + 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_fat(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 + err = file_fat_read(CONFIG_SPL_FAT_LOAD_ARGS_NAME, (void *)CONFIG_SYS_SPL_ARGS_ADDR, 0); if (err <= 0) { diff --git a/doc/README.falcon b/doc/README.falcon index bccf6c9..82a254b 100644 --- a/doc/README.falcon +++ b/doc/README.falcon @@ -89,6 +89,10 @@ mode. In this case the following variables may be supported: boot_os : Set to yes/Yes/true/True/1 to enable booting to OS, any other value to fall back to U-Boot (including unset) +falcon_args_file : Filename to load as the 'args' portion of falcon mode + rather than the hard-coded value. +falcon_image_file : Filename to load as the OS image portion of falcon + mode rather than the hard-coded value. Using spl command ----------------- |