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author | Nikita Kiryanov <nikita@compulab.co.il> | 2012-12-22 21:03:48 (GMT) |
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committer | Tom Rini <trini@ti.com> | 2013-03-22 14:57:00 (GMT) |
commit | f35034fe16871a156a9898ac6ed5a9987d91ea05 (patch) | |
tree | 85d19c0468dd40886111aea5faae5fed9f827b2d /board | |
parent | 131a1e603b3a8438b84b41940bc6a2051a36e087 (diff) | |
download | u-boot-fsl-qoriq-f35034fe16871a156a9898ac6ed5a9987d91ea05.tar.xz |
cm-t35: add support for loading splash image from NAND
Add support for loading splash image from NAND
Signed-off-by: Nikita Kiryanov <nikita@compulab.co.il>
Signed-off-by: Igor Grinberg <grinberg@compulab.co.il>
Diffstat (limited to 'board')
-rw-r--r-- | board/cm_t35/cm_t35.c | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/board/cm_t35/cm_t35.c b/board/cm_t35/cm_t35.c index e0e8235..629ce4a 100644 --- a/board/cm_t35/cm_t35.c +++ b/board/cm_t35/cm_t35.c @@ -34,7 +34,9 @@ #include <i2c.h> #include <usb.h> #include <mmc.h> +#include <nand.h> #include <twl4030.h> +#include <bmp_layout.h> #include <linux/compiler.h> #include <asm/io.h> @@ -76,6 +78,65 @@ static u32 gpmc_nand_config[GPMC_MAX_REG] = { 0, }; +#ifdef CONFIG_LCD +#ifdef CONFIG_CMD_NAND +static int splash_load_from_nand(u32 bmp_load_addr) +{ + struct bmp_header *bmp_hdr; + int res, splash_screen_nand_offset = 0x100000; + size_t bmp_size, bmp_header_size = sizeof(struct bmp_header); + + if (bmp_load_addr + bmp_header_size >= gd->start_addr_sp) + goto splash_address_too_high; + + res = nand_read_skip_bad(&nand_info[nand_curr_device], + splash_screen_nand_offset, &bmp_header_size, + (u_char *)bmp_load_addr); + if (res < 0) + return res; + + bmp_hdr = (struct bmp_header *)bmp_load_addr; + bmp_size = le32_to_cpu(bmp_hdr->file_size); + + if (bmp_load_addr + bmp_size >= gd->start_addr_sp) + goto splash_address_too_high; + + return nand_read_skip_bad(&nand_info[nand_curr_device], + splash_screen_nand_offset, &bmp_size, + (u_char *)bmp_load_addr); + +splash_address_too_high: + printf("Error: splashimage address too high. Data overwrites U-Boot " + "and/or placed beyond DRAM boundaries.\n"); + + return -1; +} +#else +static inline int splash_load_from_nand(void) +{ + return -1; +} +#endif /* CONFIG_CMD_NAND */ + +int board_splash_screen_prepare(void) +{ + char *env_splashimage_value; + u32 bmp_load_addr; + + env_splashimage_value = getenv("splashimage"); + if (env_splashimage_value == NULL) + return -1; + + bmp_load_addr = simple_strtoul(env_splashimage_value, 0, 16); + if (bmp_load_addr == 0) { + printf("Error: bad splashimage address specified\n"); + return -1; + } + + return splash_load_from_nand(bmp_load_addr); +} +#endif /* CONFIG_LCD */ + /* * Routine: board_init * Description: hardware init. |