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| author | Pavel Machek <pavel@denx.de> | 2012-08-30 22:42:11 +0200 |
|---|---|---|
| committer | Tom Rini <trini@ti.com> | 2012-09-27 11:20:28 -0700 |
| commit | c57b953da923c6402afc1c890c21fdc7d5a2cc4a (patch) | |
| tree | 1d4ecfd2fed252ebec11770488ade3c57217a797 | |
| parent | 4212098181ac91e14374c1207b1e98595f1cc717 (diff) | |
| download | u-boot-c57b953da923c6402afc1c890c21fdc7d5a2cc4a.zip u-boot-c57b953da923c6402afc1c890c21fdc7d5a2cc4a.tar.gz u-boot-c57b953da923c6402afc1c890c21fdc7d5a2cc4a.tar.bz2 | |
SPL: Add support for loading image from ram in SPL.
Signed-off-by: Pavel Machek <pavel@denx.de>
Signed-off-by: Tom Rini <trini@ti.com>
| -rw-r--r-- | README | 3 | ||||
| -rw-r--r-- | common/spl/spl.c | 22 | ||||
| -rw-r--r-- | doc/README.SPL | 1 |
3 files changed, 26 insertions, 0 deletions
@@ -2669,6 +2669,9 @@ FIT uImage format: CONFIG_SPL_SPI_SUPPORT Support for drivers/spi/libspi.o in SPL binary + CONFIG_SPL_RAM_DEVICE + Support for running image already present in ram, in SPL binary + CONFIG_SPL_LIBGENERIC_SUPPORT Support for lib/libgeneric.o in SPL binary diff --git a/common/spl/spl.c b/common/spl/spl.c index f2f6de7..c640f87 100644 --- a/common/spl/spl.c +++ b/common/spl/spl.c @@ -128,6 +128,23 @@ static void __noreturn jump_to_image_no_args(void) image_entry((u32 *)boot_params_ptr_addr); } +#ifdef CONFIG_SPL_RAM_DEVICE +static void spl_ram_load_image(void) +{ + const struct image_header *header; + + /* + * Get the header. It will point to an address defined by handoff + * which will tell where the image located inside the flash. For + * now, it will temporary fixed to address pointed by U-Boot. + */ + header = (struct image_header *) + (CONFIG_SYS_TEXT_BASE - sizeof(struct image_header)); + + spl_parse_image_header(header); +} +#endif + void board_init_r(gd_t *dummy1, ulong dummy2) { u32 boot_device; @@ -145,6 +162,11 @@ void board_init_r(gd_t *dummy1, ulong dummy2) boot_device = spl_boot_device(); debug("boot device - %d\n", boot_device); switch (boot_device) { +#ifdef CONFIG_SPL_RAM_DEVICE + case BOOT_DEVICE_RAM: + spl_ram_load_image(); + break; +#endif #ifdef CONFIG_SPL_MMC_SUPPORT case BOOT_DEVICE_MMC1: case BOOT_DEVICE_MMC2: diff --git a/doc/README.SPL b/doc/README.SPL index 5368586..4e1cb28 100644 --- a/doc/README.SPL +++ b/doc/README.SPL @@ -66,6 +66,7 @@ CONFIG_SPL_DMA_SUPPORT (drivers/dma/libdma.o) CONFIG_SPL_POST_MEM_SUPPORT (post/drivers/memory.o) CONFIG_SPL_NAND_LOAD (drivers/mtd/nand/nand_spl_load.o) CONFIG_SPL_SPI_LOAD (drivers/mtd/spi/spi_spl_load.o) +CONFIG_SPL_RAM_DEVICE (common/spl/spl.c) Normally CPU is assumed to be the same between the SPL and normal |