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authorJohn Rigby <jrigby@freescale.com>2008-11-19 13:57:34 -0700
committerJohn Rigby <jrigby@freescale.com>2009-02-03 09:25:51 -0700
commit4c154252c480b13f69ce1b71a9530b0515da76a6 (patch)
tree55861aff9036738ec9317c6f2dd4dad49289f85c /board/ads5121
parent92c20fbd3a7788c1a154f50a3f44f28a7763f99a (diff)
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ADS5121 DIU Add diu_bmp_addr env
Add support for using a bmp other than FSL_Logo_BMP for the DIU splash screen. Can now set the env var "diu_bmp_addr" to the address of a BMP in flash to use instead of the default FSL_Logo_BMP. Signed-off-by: Martha Marx <mmarx@silicontkx.com> Signed-off-by: John Rigby <jrigby@freescale.com>
Diffstat (limited to 'board/ads5121')
-rw-r--r--board/ads5121/ads5121_diu.c28
1 files changed, 26 insertions, 2 deletions
diff --git a/board/ads5121/ads5121_diu.c b/board/ads5121/ads5121_diu.c
index 565b63d..41a1353 100644
--- a/board/ads5121/ads5121_diu.c
+++ b/board/ads5121/ads5121_diu.c
@@ -65,16 +65,40 @@ void diu_set_pixel_clock(unsigned int pixclock)
debug("DIU: Modified value of CLKDVDR = 0x%08x\n", *clkdvdr);
}
+char *valid_bmp(char *addr)
+{
+ unsigned long h_addr;
+
+ h_addr = simple_strtoul(addr, NULL, 16);
+ if (h_addr < CONFIG_SYS_FLASH_BASE ||
+ h_addr >= (CONFIG_SYS_FLASH_BASE + CONFIG_SYS_FLASH_SIZE - 1)) {
+ printf("bmp addr %lx is not a valid flash address\n", h_addr);
+ return 0;
+ } else if ((*(char *)(h_addr) != 'B') || (*(char *)(h_addr+1) != 'M')) {
+ printf("bmp addr is not a bmp\n");
+ return 0;
+ } else
+ return (char *)h_addr;
+}
+
int ads5121_diu_init(void)
{
unsigned int pixel_format;
+ char *bmp = NULL;
+ char *bmp_env;
xres = 1024;
yres = 768;
pixel_format = 0x88883316;
- return fsl_diu_init(xres, pixel_format, 0,
- (unsigned char *)FSL_Logo_BMP);
+ debug("ads5121_diu_init\n");
+ bmp_env = getenv("diu_bmp_addr");
+ if (bmp_env) {
+ bmp = valid_bmp(bmp_env);
+ }
+ if (!bmp)
+ bmp = FSL_Logo_BMP;
+ return fsl_diu_init(xres, pixel_format, 0, (unsigned char *)bmp);
}
int ads5121diu_init_show_bmp(cmd_tbl_t *cmdtp,