arm: mach-k3: am642_init: Add support for USB boot mode
Add support for identifying USB host and device boot modes
Signed-off-by: Aswath Govindraju <a-govindraju@ti.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Link: https://lore.kernel.org/r/20210604163043.12811-3-a-govindraju@ti.com
diff --git a/arch/arm/mach-k3/am642_init.c b/arch/arm/mach-k3/am642_init.c
index a433702..1a2bc4b 100644
--- a/arch/arm/mach-k3/am642_init.c
+++ b/arch/arm/mach-k3/am642_init.c
@@ -192,8 +192,11 @@
case BACKUP_BOOT_DEVICE_UART:
return BOOT_DEVICE_UART;
- case BACKUP_BOOT_DEVICE_USB:
- return BOOT_DEVICE_USB;
+ case BACKUP_BOOT_DEVICE_DFU:
+ if (bkup_bootmode_cfg & MAIN_DEVSTAT_BACKUP_USB_MODE_MASK)
+ return BOOT_DEVICE_USB;
+ return BOOT_DEVICE_DFU;
+
case BACKUP_BOOT_DEVICE_ETHERNET:
return BOOT_DEVICE_ETHERNET;
@@ -245,6 +248,12 @@
return BOOT_DEVICE_MMC2;
return BOOT_DEVICE_MMC1;
+ case BOOT_DEVICE_DFU:
+ if ((bootmode_cfg & MAIN_DEVSTAT_PRIMARY_USB_MODE_MASK) >>
+ MAIN_DEVSTAT_PRIMARY_USB_MODE_SHIFT)
+ return BOOT_DEVICE_USB;
+ return BOOT_DEVICE_DFU;
+
case BOOT_DEVICE_NOBOOT:
return BOOT_DEVICE_RAM;
}