[PATCH v2] amd: versal2: Add the UFS boot mode support

[Venkatesh Yadav Abbarapu]

Add the UFS boot mode support and update the boot_targets with
ufs mode. If the UFS device is not accessible from APU and
running this is detected as a warning, as the device is not
accessible.

Signed-off-by: Venkatesh Yadav Abbarapu <venkatesh.abbarapu at amd.com>
---
Changes in v2:
- Use uclass_get_device() with index 0, as we have single
UFS controller.
---
 arch/arm/mach-versal2/include/mach/hardware.h |  1 +
 board/amd/versal2/board.c                     | 10 ++++++++++
 2 files changed, 11 insertions(+)

diff --git a/arch/arm/mach-versal2/include/mach/hardware.h b/arch/arm/mach-versal2/include/mach/hardware.h
index 42e3061a0ae..022c8b3c832 100644
--- a/arch/arm/mach-versal2/include/mach/hardware.h
+++ b/arch/arm/mach-versal2/include/mach/hardware.h
@@ -67,6 +67,7 @@ struct crp_regs {
 #define USB_MODE	0x00000007
 #define OSPI_MODE	0x00000008
 #define SELECTMAP_MODE	0x0000000A
+#define UFS_MODE	0x0000000B
 #define SD1_LSHFT_MODE	0x0000000E /* SD1 Level shifter */
 #define JTAG_MODE	0x00000000
 #define BOOT_MODE_USE_ALT	0x100
diff --git a/board/amd/versal2/board.c b/board/amd/versal2/board.c
index 5651d516a9e..220ab63c994 100644
--- a/board/amd/versal2/board.c
+++ b/board/amd/versal2/board.c
@@ -252,6 +252,16 @@ static int boot_targets_setup(void)
 		mode = "mmc";
 		bootseq = dev_seq(dev);
 		break;
+	case UFS_MODE:
+		puts("UFS_MODE\n");
+		if (uclass_get_device(UCLASS_UFS, 0, &dev)) {
+			debug("UFS driver for UFS device is not present\n");
+			break;
+		}
+		debug("ufs device found at %p\n", dev);
+
+		mode = "ufs";
+		break;
 	default:
 		printf("Invalid Boot Mode:0x%x\n", bootmode);
 		break;
-- 
2.34.1