The USB download mode can be detected by reading the BMOD[0|1]
bits. Add support for it.
Signed-off-by: Sascha Hauer <s.hauer@xxxxxxxxxxxxxx>
---
arch/arm/mach-imx/boot.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/arch/arm/mach-imx/boot.c b/arch/arm/mach-imx/boot.c
index c72ec61..b66c29d 100644
--- a/arch/arm/mach-imx/boot.c
+++ b/arch/arm/mach-imx/boot.c
@@ -217,6 +217,12 @@ void imx53_get_boot_source(enum bootsource *src, int *instance)
void __iomem *src_base = IOMEM(MX53_SRC_BASE_ADDR);
uint32_t cfg1 = readl(src_base + IMX53_SRC_SBMR);
+ if (((cfg1 >> 24) & 0x3) == 0x3) {
+ *src = BOOTSOURCE_USB;
+ *instance = 0;
+ return;
+ }
+
switch ((cfg1 & 0xff) >> 4) {
case 2:
*src = BOOTSOURCE_HD;
--
2.8.1
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