compulab: splash: support multiple splash sources

Define a generic way for boards to define splash image locations:
- introduce struct splash_location
- introduce enum splash_storage
- update cl_splash_screen_prepare() to take an array of above struct
  and select the appropriate one based on the splashsource environment
  variable (if it is not defined- use the first splash location as default).

cm-t35 is updated to work with the new interface.

Signed-off-by: Nikita Kiryanov <nikita@compulab.co.il>
Cc: Stefano Babic <sbabic@denx.de>
Cc: Igor Grinberg <grinberg@compulab.co.il>
Acked-by: Igor Grinberg <grinberg@compulab.co.il>

1 files changed, 9 insertions, 2 deletions

diff --git a/board/compulab/cm_t35/cm_t35.c b/board/compulab/cm_t35/cm_t35.c
index 9a3b2ee72f..8143c05353 100644
--- a/board/compulab/cm_t35/cm_t35.c
+++ b/board/compulab/cm_t35/cm_t35.c
@@ -59,11 +59,18 @@ void get_board_mem_timings(struct board_sdrc_timings *timings)
 }
 #endif
 
-#define CM_T35_SPLASH_NAND_OFFSET 0x100000
+struct splash_location splash_locations[] = {
+	{
+		.name = "nand",
+		.storage = SPLASH_STORAGE_NAND,
+		.offset = 0x100000,
+	},
+};
 
 int splash_screen_prepare(void)
 {
-	return cl_splash_screen_prepare(CM_T35_SPLASH_NAND_OFFSET);
+	return cl_splash_screen_prepare(splash_locations,
+					ARRAY_SIZE(splash_locations));
 }
 
 /*