board: ti: am57xx: Add dt support for BeagleBoard-X15 revC

Add support for selecting proper dtb for
am57xx BeagleBoard X15 revC u-boot from FIT

Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>

arch/arm/dts/Makefile

@@ -176,6 +176,7 @@ dtb-$(CONFIG_TARGET_DRA7XX_EVM) += dra72-evm.dtb dra7-evm.dtb	\
 	dra72-evm-revc.dtb dra71-evm.dtb dra76-evm.dtb
 dtb-$(CONFIG_TARGET_AM57XX_EVM) += am57xx-beagle-x15.dtb \
 	am57xx-beagle-x15-revb1.dtb \
+	am57xx-beagle-x15-revc.dtb \
 	am572x-idk.dtb	\
 	am571x-idk.dtb
 dtb-$(CONFIG_TARGET_STV0991) += stv0991.dtb

board/ti/am57xx/board.c

@@ -1063,6 +1063,9 @@ int board_fit_config_name_match(const char *name)
 		if (board_is_x15_revb1()) {
 			if (!strcmp(name, "am57xx-beagle-x15-revb1"))
 				return 0;
+		} else if (board_is_x15_revc()) {
+			if (!strcmp(name, "am57xx-beagle-x15-revc"))
+				return 0;
 		} else if (!strcmp(name, "am57xx-beagle-x15")) {
 			return 0;
 		}

configs/am57xx_evm_defconfig

@@ -39,7 +39,7 @@ CONFIG_CMD_SPL=y
 CONFIG_ISO_PARTITION=y
 CONFIG_OF_CONTROL=y
 CONFIG_SPL_OF_CONTROL=y
-CONFIG_OF_LIST="am57xx-beagle-x15 am57xx-beagle-x15-revb1 am572x-idk am571x-idk"
+CONFIG_OF_LIST="am57xx-beagle-x15 am57xx-beagle-x15-revb1 am57xx-beagle-x15-revc am572x-idk am571x-idk"
 CONFIG_ENV_IS_IN_MMC=y
 CONFIG_DM=y
 CONFIG_SPL_DM=y

configs/am57xx_hs_evm_defconfig

@@ -42,7 +42,7 @@ CONFIG_FASTBOOT_FLASH_MMC_DEV=1
 CONFIG_ISO_PARTITION=y
 CONFIG_OF_CONTROL=y
 CONFIG_SPL_OF_CONTROL=y
-CONFIG_OF_LIST="am57xx-beagle-x15 am57xx-beagle-x15-revb1 am572x-idk am571x-idk"
+CONFIG_OF_LIST="am57xx-beagle-x15 am57xx-beagle-x15-revb1 am57xx-beagle-x15-revc am572x-idk am571x-idk"
 CONFIG_ENV_IS_IN_MMC=y
 CONFIG_DM=y
 CONFIG_SPL_DM=y