board: ti: am57xx: Add support for detection of X15 revb1

BeagleBoard-X15 Rev B1 with SR1.1 platform have incompatible changes for HDMI
GPIO requiring new dtb support. This implies we have to properly identify
the platform now as well. Hence provide a different board name for the
Rev B1 variants.

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

board/ti/am57xx/board.c

@@ -35,6 +35,8 @@
 #include "mux_data.h"
 
 #define board_is_x15()		board_ti_is("BBRDX15_")
+#define board_is_x15_revb1()	(board_ti_is("BBRDX15_") && \
+				 (strncmp("B.10", board_ti_get_rev(), 3) <= 0))
 #define board_is_am572x_evm()	board_ti_is("AM572PM_")
 #define board_is_am572x_evm_reva3()	\
 				(board_ti_is("AM572PM_") && \
@@ -394,7 +396,10 @@ static void setup_board_eeprom_env(void)
 		goto invalid_eeprom;
 
 	if (board_is_x15()) {
-		name = "beagle_x15";
+		if (board_is_x15_revb1())
+			name = "beagle_x15_revb1";
+		else
+			name = "beagle_x15";
 	} else if (board_is_am572x_evm()) {
 		if (board_is_am572x_evm_reva3())
 			name = "am57xx_evm_reva3";
@@ -790,14 +795,21 @@ int ft_board_setup(void *blob, bd_t *bd)
 #ifdef CONFIG_SPL_LOAD_FIT
 int board_fit_config_name_match(const char *name)
 {
-	if (board_is_x15() && !strcmp(name, "am57xx-beagle-x15"))
-		return 0;
-	else if (board_is_am572x_evm() && !strcmp(name, "am57xx-beagle-x15"))
+	if (board_is_x15()) {
+		if (board_is_x15_revb1()) {
+			if (!strcmp(name, "am57xx-beagle-x15-revb1"))
+				return 0;
+		} else if (!strcmp(name, "am57xx-beagle-x15")) {
+			return 0;
+		}
+	} else if (board_is_am572x_evm() &&
+		   !strcmp(name, "am57xx-beagle-x15")) {
 		return 0;
-	else if (board_is_am572x_idk() && !strcmp(name, "am572x-idk"))
+	} else if (board_is_am572x_idk() && !strcmp(name, "am572x-idk")) {
 		return 0;
-	else
-		return -1;
+	}
+
+	return -1;
 }
 #endif
 

configs/am57xx_evm_defconfig

@@ -50,7 +50,7 @@ CONFIG_CMD_EXT4_WRITE=y
 CONFIG_CMD_FAT=y
 CONFIG_CMD_FS_GENERIC=y
 CONFIG_OF_CONTROL=y
-CONFIG_OF_LIST="am57xx-beagle-x15 am572x-idk"
+CONFIG_OF_LIST="am57xx-beagle-x15 am57xx-beagle-x15-revb1 am572x-idk"
 CONFIG_DM=y
 # CONFIG_BLK is not set
 CONFIG_DM_GPIO=y

include/configs/ti_omap5_common.h

@@ -89,6 +89,8 @@
 			"setenv fdtfile dra71-evm.dtb; fi;" \
 		"if test $board_name = beagle_x15; then " \
 			"setenv fdtfile am57xx-beagle-x15.dtb; fi;" \
+		"if test $board_name = beagle_x15_revb1; then " \
+			"setenv fdtfile am57xx-beagle-x15-revb1.dtb; fi;" \
 		"if test $board_name = am572x_idk; then " \
 			"setenv fdtfile am572x-idk.dtb; fi;" \
 		"if test $board_name = am57xx_evm; then " \