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>
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 @@
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,