From d804452bf4e4484d2ea305f3d4dc7ba219298fb3 Mon Sep 17 00:00:00 2001
From: Hannes Petermaier <oe5hpm@oevsv.at>
Date: Fri, 24 Apr 2015 14:49:35 +0200
Subject: [PATCH] board/BuR/tseries: take usage of CONFIG_LCD_ROTATION

We take use of the new LCD_ROTATION feature.
The information about how the display is rotated is taken from B&R specific
(/factory-settings/rotation) information in the devicetree.

The information there is stored as string (cw, ud, ccw, none) since starting
support of this devices and cannot be changed, so we have to convert it into

none = 0
cw   = 1
ud   = 2
ccw  = 3

Signed-off-by: Hannes Petermaier <oe5hpm@oevsv.at>
---
 board/BuR/common/common.c | 23 +++++++++++++++++++++++
 include/configs/tseries.h |  8 +++++---
 2 files changed, 28 insertions(+), 3 deletions(-)

diff --git a/board/BuR/common/common.c b/board/BuR/common/common.c
index 23a98e4fdf..3036f86781 100644
--- a/board/BuR/common/common.c
+++ b/board/BuR/common/common.c
@@ -52,6 +52,9 @@ int load_lcdtiming(struct am335x_lcdpanel *panel)
 	struct am335x_lcdpanel pnltmp;
 #ifdef CONFIG_USE_FDT
 	u32 dtbprop;
+	char buf[32];
+	const char *nodep = 0;
+	int nodeoff;
 
 	if (gd->fdt_blob == NULL) {
 		printf("%s: don't have a valid gd->fdt_blob!\n", __func__);
@@ -97,6 +100,25 @@ int load_lcdtiming(struct am335x_lcdpanel *panel)
 	dtbprop = FDTPROP(PATHTIM, "de-active");
 	if (dtbprop == 0)
 		pnltmp.pol |= DE_INVERT;
+
+	nodeoff = fdt_path_offset(gd->fdt_blob, "/factory-settings");
+	if (nodeoff >= 0) {
+		nodep = fdt_getprop(gd->fdt_blob, nodeoff, "rotation", NULL);
+		if (nodep != 0) {
+			if (strcmp(nodep, "cw") == 0)
+				panel_info.vl_rot = 1;
+			else if (strcmp(nodep, "ud") == 0)
+				panel_info.vl_rot = 2;
+			else if (strcmp(nodep, "ccw") == 0)
+				panel_info.vl_rot = 3;
+			else
+				panel_info.vl_rot = 0;
+		}
+	} else {
+		puts("no 'factory-settings / rotation' in dtb!\n");
+	}
+	snprintf(buf, sizeof(buf), "fbcon=rotate:%d", panel_info.vl_rot);
+	setenv("optargs_rot", buf);
 #else
 	pnltmp.hactive = getenv_ulong("ds1_hactive", 10, ~0UL);
 	pnltmp.vactive = getenv_ulong("ds1_vactive", 10, ~0UL);
@@ -111,6 +133,7 @@ int load_lcdtiming(struct am335x_lcdpanel *panel)
 	pnltmp.pol = getenv_ulong("ds1_pol", 16, ~0UL);
 	pnltmp.pup_delay = getenv_ulong("ds1_pupdelay", 10, ~0UL);
 	pnltmp.pon_delay = getenv_ulong("ds1_tondelay", 10, ~0UL);
+	panel_info.vl_rot = getenv_ulong("ds1_rotation", 10, 0);
 #endif
 	if (
 	   ~0UL == (pnltmp.hactive) ||
diff --git a/include/configs/tseries.h b/include/configs/tseries.h
index 1e41a12a6c..4406e6fafb 100644
--- a/include/configs/tseries.h
+++ b/include/configs/tseries.h
@@ -17,6 +17,7 @@
 #define CONFIG_AM335X_LCD
 #define CONFIG_LCD
 #define CONFIG_LCD_NOSTDOUT
+#define CONFIG_LCD_ROTATION
 #define CONFIG_SYS_WHITE_ON_BLACK
 #define LCD_BPP				LCD_COLOR32
 
@@ -105,6 +106,7 @@
 	"mtdparts=" MTDPARTS_DEFAULT "\0" \
 	"nandargs=setenv bootargs console=${console} " \
 		"${optargs} " \
+		"${optargs_rot} " \
 		"root=mtd6 " \
 		"rootfstype=jffs2\0" \
 	"kernelsize=0x400000\0" \
@@ -127,9 +129,9 @@
 	"bmp display ${loadaddr} 0 0\0" \
 "logo1=ext4load mmc 0:1 ${loadaddr} /PPTLogo.bmp.gz && " \
 	"bmp display ${loadaddr} 0 0\0" \
-"mmcroot0=setenv bootargs ${optargs} console=${console}\0" \
-"mmcroot1=setenv bootargs ${optargs} console=${console} root=/dev/mmcblk0p2 " \
-	"rootfstype=ext4\0" \
+"mmcroot0=setenv bootargs ${optargs_rot} ${optargs} console=${console}\0" \
+"mmcroot1=setenv bootargs ${optargs_rot} ${optargs} console=${console} " \
+	"root=/dev/mmcblk0p2 rootfstype=ext4\0" \
 "mmcboot0=echo booting Updatesystem from mmc (ext4-fs) ...; " \
 	"ext4load mmc 0:1 ${loadaddr} /${kernel}; " \
 	"ext4load mmc 0:1 ${ramaddr} /${ramdisk}; " \