The i.MX53 has the bootsource instance information stored
in SBMR[21:22], expose it to the environment.
Signed-off-by: Sascha Hauer <s.ha...@pengutronix.de>
---
arch/arm/mach-imx/boot.c | 18 ++++++++++++++++--
1 file changed, 16 insertions(+), 2 deletions(-)
diff --git a/arch/arm/mach-imx/boot.c b/arch/arm/mach-imx/boot.c
index 7824206..bd0cb84 100644
--- a/arch/arm/mach-imx/boot.c
+++ b/arch/arm/mach-imx/boot.c
@@ -169,9 +169,10 @@ void imx51_boot_save_loc(void __iomem *src_base)
void imx53_boot_save_loc(void __iomem *src_base)
{
enum bootsource src = BOOTSOURCE_UNKNOWN;
- uint32_t cfg1 = readl(src_base + IMX53_SRC_SBMR) & 0xff;
+ int instance;
+ uint32_t cfg1 = readl(src_base + IMX53_SRC_SBMR);
- switch (cfg1 >> 4) {
+ switch ((cfg1 & 0xff) >> 4) {
case 2:
src = BOOTSOURCE_HD;
break;
@@ -194,7 +195,20 @@ void imx53_boot_save_loc(void __iomem *src_base)
if (cfg1 & (1 << 7))
src = BOOTSOURCE_NAND;
+
+ switch (src) {
+ case BOOTSOURCE_MMC:
+ case BOOTSOURCE_SPI:
+ case BOOTSOURCE_I2C:
+ instance = (cfg1 >> 21) & 0x3;
+ break;
+ default:
+ instance = 0;
+ break;
+ }
+
bootsource_set(src);
+ bootsource_set_instance(instance);
}
#define IMX6_SRC_SBMR1 0x04
--
1.8.2.rc2
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