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From e3cc511eef5d99491e0c51324be499b688dde8de Mon Sep 17 00:00:00 2001
From: David Woodhouse <dwmw2@infradead.org>
Date: Sun, 12 Jul 2020 23:33:01 +0100
Subject: [PATCH 1/3] board: mediatek: fix mmc_get_boot_dev() for platforms
without external 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 <dwmw2@infradead.org>
---
board/mediatek/mt7623/mt7623_rfb.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/board/mediatek/mt7623/mt7623_rfb.c b/board/mediatek/mt7623/mt7623_rfb.c
index 4ec2764976..984e75ccaf 100644
--- 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
--
2.26.2
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