commit 897e83f0a5ad97f3f97976c2df16f14b1f205d94
author Faiz Abbas <faiz_abbas@ti.com> Mon Aug 03 11:35:10 2020 +0530
committer Lokesh Vutla <lokeshvutla@ti.com> Tue Aug 11 20:34:46 2020 +0530
tree e13c230966634c4369b6c23e784028c9c0857904
parent 403fc5c9cf2c40c85e0c3d0c8bc36244a665cb74

arm: mach-k3: am6_init: Add support for USB boot mode

Add support for identifying USB host and device boot modes

Signed-off-by: Faiz Abbas <faiz_abbas@ti.com>

arch/arm/mach-k3/am6_init.c

diff --git a/arch/arm/mach-k3/am6_init.c b/arch/arm/mach-k3/am6_init.c
index c6d4f05..9cb3086 100644
--- a/arch/arm/mach-k3/am6_init.c
+++ b/arch/arm/mach-k3/am6_init.c
@@ -333,6 +333,11 @@
 			    CTRLMMR_MAIN_DEVSTAT_EMMC_PORT_SHIFT;
 		if (port == 0x1)
 			bootmode = BOOT_DEVICE_MMC2;
+	} else if (bootmode == BOOT_DEVICE_DFU) {
+		u32 mode = (devstat & CTRLMMR_MAIN_DEVSTAT_USB_MODE_MASK) >>
+			    CTRLMMR_MAIN_DEVSTAT_USB_MODE_SHIFT;
+		if (mode == 0x2)
+			bootmode = BOOT_DEVICE_USB;
 	}
 
 	return bootmode;