This enables us to detect if the i.MX6 SoC
is booting from USB.
Signed-off-by: Sean Nyekjaer <sean.nyekj...@prevas.dk>
---
arch/arm/include/asm/arch-mx6/imx-regs.h | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/arch/arm/include/asm/arch-mx6/imx-regs.h
b/arch/arm/include/asm/arch-mx6/imx-regs.h
index 095eb74195..10da611968 100644
--- a/arch/arm/include/asm/arch-mx6/imx-regs.h
+++ b/arch/arm/include/asm/arch-mx6/imx-regs.h
@@ -998,4 +998,11 @@ struct pwm_regs {
u32 cnr;
};
#endif /* __ASSEMBLER__*/
+
+/*
+ * If ROM fail back to USB recover mode, USBPH0_PWD will be clear to use USB
+ * If boot from the other mode, USB0_PWD will keep reset value
+ */
+#define is_boot_from_usb(void) (!(readl(USB_PHY0_BASE_ADDR) & (1 << 20)))
+
#endif /* __ASM_ARCH_MX6_IMX_REGS_H__ */
--
2.17.0
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