From bf43ce6ca65355d8ad262d7bd55f5d05dbf55e25 Mon Sep 17 00:00:00 2001
From: Nishanth Menon <nm@ti.com>
Date: Fri, 25 Nov 2016 11:14:19 +0530
Subject: board: ti: am57xx: Add support for detection of reva3 variations for
 GPEVM

AM57xx evm Rev A3 with SR2.0 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 A3 variations.

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

diff --git a/board/ti/am57xx/board.c b/board/ti/am57xx/board.c
index 02cedba..fd15ba1 100644
--- a/board/ti/am57xx/board.c
+++ b/board/ti/am57xx/board.c
@@ -36,6 +36,9 @@
 
 #define board_is_x15()		board_ti_is("BBRDX15_")
 #define board_is_am572x_evm()	board_ti_is("AM572PM_")
+#define board_is_am572x_evm_reva3()	\
+				(board_ti_is("AM572PM_") && \
+				 (strncmp("A.30", board_ti_get_rev(), 3) <= 0))
 #define board_is_am572x_idk()	board_ti_is("AM572IDK")
 
 #ifdef CONFIG_DRIVER_TI_CPSW
@@ -390,15 +393,19 @@ static void setup_board_eeprom_env(void)
 	if (rc)
 		goto invalid_eeprom;
 
-	if (board_is_x15())
+	if (board_is_x15()) {
 		name = "beagle_x15";
-	else if (board_is_am572x_evm())
-		name = "am57xx_evm";
-	else if (board_is_am572x_idk())
+	} else if (board_is_am572x_evm()) {
+		if (board_is_am572x_evm_reva3())
+			name = "am57xx_evm_reva3";
+		else
+			name = "am57xx_evm";
+	} else if (board_is_am572x_idk()) {
 		name = "am572x_idk";
-	else
+	} else {
 		printf("Unidentified board claims %s in eeprom header\n",
 		       board_ti_get_name());
+	}
 
 invalid_eeprom:
 	set_board_info_env(name);
diff --git a/include/configs/ti_omap5_common.h b/include/configs/ti_omap5_common.h
index 73c6716..d6f750f 100644
--- a/include/configs/ti_omap5_common.h
+++ b/include/configs/ti_omap5_common.h
@@ -93,6 +93,8 @@
 			"setenv fdtfile am572x-idk.dtb; fi;" \
 		"if test $board_name = am57xx_evm; then " \
 			"setenv fdtfile am57xx-beagle-x15.dtb; fi;" \
+		"if test $board_name = am57xx_evm_reva3; then " \
+			"setenv fdtfile am57xx-beagle-x15.dtb; fi;" \
 		"if test $fdtfile = undefined; then " \
 			"echo WARNING: Could not determine device tree to use; fi; \0" \
 	DFUARGS \
-- 
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