Add support for loading splash image from an SD card formatted with a filesystem. Update boards to maintain original behavior where needed.
Cc: Igor Grinberg grinberg@compulab.co.il Cc: Tom Rini trini@konsulko.com Signed-off-by: Nikita Kiryanov nikita@compulab.co.il --- board/compulab/cm_fx6/cm_fx6.c | 1 + board/compulab/cm_t35/cm_t35.c | 1 + common/splash_source.c | 51 +++++++++++++++++++++++++++++++++++++++++- include/splash.h | 8 +++++++ 4 files changed, 60 insertions(+), 1 deletion(-)
diff --git a/board/compulab/cm_fx6/cm_fx6.c b/board/compulab/cm_fx6/cm_fx6.c index e85c8ab..4c2a5c8 100644 --- a/board/compulab/cm_fx6/cm_fx6.c +++ b/board/compulab/cm_fx6/cm_fx6.c @@ -38,6 +38,7 @@ static struct splash_location cm_fx6_splash_locations[] = { { .name = "sf", .storage = SPLASH_STORAGE_SF, + .flags = SPLASH_STORAGE_RAW, .offset = 0x100000, }, }; diff --git a/board/compulab/cm_t35/cm_t35.c b/board/compulab/cm_t35/cm_t35.c index 374edbc..398c573 100644 --- a/board/compulab/cm_t35/cm_t35.c +++ b/board/compulab/cm_t35/cm_t35.c @@ -64,6 +64,7 @@ struct splash_location splash_locations[] = { { .name = "nand", .storage = SPLASH_STORAGE_NAND, + .flags = SPLASH_STORAGE_RAW, .offset = 0x100000, }, }; diff --git a/common/splash_source.c b/common/splash_source.c index 4820c12..cb45c63 100644 --- a/common/splash_source.c +++ b/common/splash_source.c @@ -13,6 +13,7 @@ #include <spi_flash.h> #include <spi.h> #include <bmp_layout.h> +#include <fs.h>
DECLARE_GLOBAL_DATA_PTR;
@@ -103,6 +104,49 @@ splash_address_too_high: return -EFAULT; }
+static int splash_select_fs_dev(struct splash_location *location) +{ + int res; + + switch (location->storage) { + case SPLASH_STORAGE_MMC: + res = fs_set_blk_dev("mmc", location->devpart, FS_TYPE_ANY); + break; + default: + printf("Error: unsupported location storage.\n"); + return -ENODEV; + } + + if (res) + printf("Error: could not access storage.\n"); + + return res; +} + +static int splash_load_fs(struct splash_location *location, u32 bmp_load_addr) +{ + int res; + loff_t bmp_size; + + res = splash_select_fs_dev(location); + if (res) + return res; + + res = fs_size("splash.bmp", &bmp_size); + if (res) { + printf("Error (%d): cannot determine file size\n", res); + return res; + } + + if (bmp_load_addr + bmp_size >= gd->start_addr_sp) { + printf("Error: splashimage address too high. Data overwrites U-Boot and/or placed beyond DRAM boundaries.\n"); + return -EFAULT; + } + + splash_select_fs_dev(location); + return fs_read("splash.bmp", bmp_load_addr, 0, 0, NULL); +} + /** * select_splash_location - return the splash location based on board support * and env variable "splashsource". @@ -172,5 +216,10 @@ int splash_source_load(struct splash_location *locations, uint size) if (!splash_location) return -EINVAL;
- return splash_load_raw(splash_location, bmp_load_addr); + if (splash_location->flags & SPLASH_STORAGE_RAW) + return splash_load_raw(splash_location, bmp_load_addr); + else if (splash_location->flags & SPLASH_STORAGE_FS) + return splash_load_fs(splash_location, bmp_load_addr); + + return -EINVAL; } diff --git a/include/splash.h b/include/splash.h index 7ae7a68..d1fba69 100644 --- a/include/splash.h +++ b/include/splash.h @@ -27,12 +27,20 @@ enum splash_storage { SPLASH_STORAGE_NAND, SPLASH_STORAGE_SF, + SPLASH_STORAGE_MMC, +}; + +enum splash_flags { + SPLASH_STORAGE_RAW, + SPLASH_STORAGE_FS, };
struct splash_location { char *name; enum splash_storage storage; + enum splash_flags flags; u32 offset; /* offset from start of storage */ + char *devpart; /* Use the load command dev:part conventions */ };
int splash_source_load(struct splash_location *locations, uint size);