ARM: dts: Turn Salvator-X into Multi-DTB config

Bundle DTBs for R8A7795, R8A7796, R8A77965 Salvator-X variants
into the single U-Boot build and let U-Boot choose between them
based on the CPU model.
Signed-off-by: NMarek Vasut <marek.vasut+renesas@gmail.com>
Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>

board/renesas/salvator-x/salvator-x.c

@@ -99,3 +99,25 @@ void reset_cpu(ulong addr)
 	writel(RST_CODE, RST_CA57RESCNT);
 #endif
 }
+
+#ifdef CONFIG_MULTI_DTB_FIT
+int board_fit_config_name_match(const char *name)
+{
+	/* PRR driver is not available yet */
+	u32 cpu_type = rmobile_get_cpu_type();
+
+	if ((cpu_type == RMOBILE_CPU_TYPE_R8A7795) &&
+	    !strcmp(name, "r8a7795-salvator-x-u-boot"))
+		return 0;
+
+	if ((cpu_type == RMOBILE_CPU_TYPE_R8A7796) &&
+	    !strcmp(name, "r8a7796-salvator-x-u-boot"))
+		return 0;
+
+	if ((cpu_type == RMOBILE_CPU_TYPE_R8A77965) &&
+	    !strcmp(name, "r8a77965-salvator-x-u-boot"))
+		return 0;
+
+	return -1;
+}
+#endif

configs/r8a7795_salvator-x_defconfig

@@ -28,6 +28,8 @@ CONFIG_CMD_FAT=y
 CONFIG_CMD_FS_GENERIC=y
 CONFIG_OF_CONTROL=y
 CONFIG_DEFAULT_DEVICE_TREE="r8a7795-salvator-x-u-boot"
+CONFIG_OF_LIST="r8a7795-salvator-x-u-boot r8a7796-salvator-x-u-boot r8a77965-salvator-x-u-boot"
+CONFIG_MULTI_DTB_FIT=y
 CONFIG_ENV_IS_IN_MMC=y
 CONFIG_REGMAP=y
 CONFIG_SYSCON=y

configs/r8a77965_salvator-x_defconfig

@@ -29,6 +29,8 @@ CONFIG_CMD_FAT=y
 CONFIG_CMD_FS_GENERIC=y
 CONFIG_OF_CONTROL=y
 CONFIG_DEFAULT_DEVICE_TREE="r8a77965-salvator-x-u-boot"
+CONFIG_OF_LIST="r8a7795-salvator-x-u-boot r8a7796-salvator-x-u-boot r8a77965-salvator-x-u-boot"
+CONFIG_MULTI_DTB_FIT=y
 CONFIG_ENV_IS_IN_MMC=y
 CONFIG_REGMAP=y
 CONFIG_SYSCON=y

configs/r8a7796_salvator-x_defconfig

@@ -29,6 +29,8 @@ CONFIG_CMD_FAT=y
 CONFIG_CMD_FS_GENERIC=y
 CONFIG_OF_CONTROL=y
 CONFIG_DEFAULT_DEVICE_TREE="r8a7796-salvator-x-u-boot"
+CONFIG_OF_LIST="r8a7795-salvator-x-u-boot r8a7796-salvator-x-u-boot r8a77965-salvator-x-u-boot"
+CONFIG_MULTI_DTB_FIT=y
 CONFIG_ENV_IS_IN_MMC=y
 CONFIG_REGMAP=y
 CONFIG_SYSCON=y