board: mediatek: fix mmc_get_boot_dev() for platforms without externa…

…l SD On the UniElec U7623 board there is no external SD slot and the preloader doesn't fill in the magic field at 0x81dffff0 to indicate that it was booted from eMMC. Signed-off-by: David Woodhouse <[email protected]>
imaami · Jul 29, 2020 · e3cc511 · e3cc511
1 parent b39cacc
commit e3cc511
Showing 1 changed file with 7 additions and 0 deletions.
diff --git a/board/mediatek/mt7623/mt7623_rfb.c b/board/mediatek/mt7623/mt7623_rfb.c
@@ -4,6 +4,7 @@
  */
 
 #include <common.h>
+#include <mmc.h>
 
 DECLARE_GLOBAL_DATA_PTR;
 
@@ -15,10 +16,15 @@ int board_init(void)
 	return 0;
 }
 
+#ifdef CONFIG_MMC
 int mmc_get_boot_dev(void)
 {
 	int g_mmc_devid = -1;
 	char *uflag = (char *)0x81DFFFF0;
+
+	if (!find_mmc_device(1))
+		return 0;
+
 	if (strncmp(uflag,"eMMC",4)==0) {
 		g_mmc_devid = 0;
 		printf("Boot From Emmc(id:%d)\n\n", g_mmc_devid);
@@ -33,3 +39,4 @@ int mmc_get_env_dev(void)
 {
 	return mmc_get_boot_dev();
 }
+#endif