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-rw-r--r--arch/arm/include/asm/arch-mx6/imx-regs.h7
1 files changed, 7 insertions, 0 deletions
diff --git a/arch/arm/include/asm/arch-mx6/imx-regs.h b/arch/arm/include/asm/arch-mx6/imx-regs.h
index 431439218d..4f01b20aed 100644
--- a/arch/arm/include/asm/arch-mx6/imx-regs.h
+++ b/arch/arm/include/asm/arch-mx6/imx-regs.h
@@ -996,5 +996,12 @@ struct pwm_regs {
u32 pr;
u32 cnr;
};
+
+/*
+ * 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 /* __ASSEMBLER__*/
#endif /* __ASM_ARCH_MX6_IMX_REGS_H__ */