added driver for Ortustech COM37H3M05DTC

2 files changed, 146 insertions, 0 deletions

diff --git a/board/goldelico/beagle-expander/COM37H3M05DTC.c b/board/goldelico/beagle-expander/COM37H3M05DTC.c
new file mode 100644
index 0000000..4904c0f
--- /dev/null
+++ b/board/goldelico/beagle-expander/COM37H3M05DTC.c
@@ -0,0 +1,140 @@
+/* u-boot driver for the OrtusTech COM37H3M05DTC LCM
+ *
+ * Copyright (C) 2006-2007 by OpenMoko, Inc.
+ * Author: Harald Welte <laforge@openmoko.org>
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ *
+ */
+
+#include <common.h>
+#include <asm/errno.h>
+#include <asm/io.h>
+#include <asm/arch/mux.h>
+#include <asm/arch/sys_proto.h>
+#include <asm/arch/gpio.h>
+#include <asm/mach-types.h>
+#include <twl4030.h>
+#include "../gta04/dssfb.h"
+#include "../gta04/jbt6k74.h"	// FIXME: change to display.h and make it more generic
+#include "COM37H3M05DTC.h"
+
+#ifdef CONFIG_OMAP3_BEAGLE_EXPANDER
+#define GPIO_STBY 158
+#endif
+
+// configure beagle board DSS for the COM37H3M05DTC
+
+#define DVI_BACKGROUND_COLOR		0x00fadc29	// rgb(250, 220, 41)
+
+#define DSS1_FCLK	432000000	// see figure 15-65
+#define PIXEL_CLOCK	22400000	// approx. 22.4 MHz (will be divided from 432 MHz)
+
+// all values are min ratings
+
+#define VDISP	640				// vertical active area
+#define VFP		2				// vertical front porch
+#define VS		1				// VSYNC pulse width (negative going)
+#define VBP		3				// vertical back porch
+#define VDS		(VS+VBP)		// vertical data start
+#define VBL		(VS+VBP+VFP)	// vertical blanking period
+#define VP		(VDISP+VBL)		// vertical cycle
+
+#define HDISP	480				// horizontal active area
+#define HFP		2				// horizontal front porch
+#define HS		2				// HSYNC pulse width (negative going)
+#define HBP		9				// horizontal back porch
+#define HDS		(HS+HBP)		// horizontal data start
+#define HBL		(HS+HBP+HFP)	// horizontal blanking period
+#define HP		(HDISP+HBL)		// horizontal cycle
+
+static const struct panel_config lcm_cfg = 
+{
+	.timing_h	= ((HBP-1)<<20) | ((HFP-1)<<8) | ((HS-1)<<0), /* Horizantal timing */
+	.timing_v	= ((VBP+0)<<20) | ((VFP+0)<<8) | ((VS-1)<<0), /* Vertical timing */
+	// negative clock edge
+	// negative sync pulse
+	// positive DE pulse
+	.pol_freq	= (1<<17)|(1<<16)|(0<<15)|(0<<14)|(1<<13)|(1<<12)|0x28,    /* Pol Freq */
+	.divisor	= (0x0001<<16)|(DSS1_FCLK/PIXEL_CLOCK), /* Pixel Clock divisor from dss1_fclk */
+	.lcd_size	= ((HDISP-1)<<0) | ((VDISP-1)<<16), /* as defined by LCM */
+	.panel_type	= 0x01, /* TFT */
+	.data_lines	= 0x03, /* 24 Bit RGB */
+	.load_mode	= 0x02, /* Frame Mode */
+	.panel_color	= DVI_BACKGROUND_COLOR
+};
+
+int jbt_reg_init(void)
+{
+	omap_request_gpio(GPIO_STBY);
+	omap_set_gpio_direction(GPIO_STBY, 0);		// output
+	return 0;
+}
+
+int jbt_check(void)
+{
+	return 0;
+}
+
+const char *jbt_state(void)
+{
+	return "?";
+}
+
+/* frontend function */
+int jbt6k74_enter_state(enum jbt_state new_state)
+{
+	return 0;
+}
+
+int jbt6k74_display_onoff(int on)
+{
+	omap_set_gpio_dataout(GPIO_STBY, on?0:1);	// on = no STBY
+	return 0;
+}
+
+int board_video_init(GraphicDevice *pGD)
+{
+	extern int get_board_revision(void);
+	
+	// FIXME: here we should pass down the GPIO(s)
+	
+	backlight_init();	// initialize backlight
+#define REVISION_XM 0
+	if(get_board_revision() == REVISION_XM) {
+		/* Set VAUX1 to 3.3V for GTA04E display board */
+		twl4030_pmrecv_vsel_cfg(TWL4030_PM_RECEIVER_VAUX1_DEDICATED,
+								/*TWL4030_PM_RECEIVER_VAUX1_VSEL_33*/ 0x07,
+								TWL4030_PM_RECEIVER_VAUX1_DEV_GRP,
+								TWL4030_PM_RECEIVER_DEV_GRP_P1);
+		udelay(5000);
+	}
+	
+	// FIXME: here we should init the TSC and pass down the GPIO numbers and resistance values
+	
+	if(jbt_reg_init())	// initialize SPI
+		{
+		printf("No LCM connected\n");
+		return 1;
+		}
+	
+	dssfb_init(&lcm_cfg);
+	
+	printf("did board_video_init()\n");
+	return 0;
+}
+
diff --git a/board/goldelico/beagle-expander/COM37H3M05DTC.h b/board/goldelico/beagle-expander/COM37H3M05DTC.h
new file mode 100644
index 0000000..87c7b57
--- /dev/null
+++ b/board/goldelico/beagle-expander/COM37H3M05DTC.h
@@ -0,0 +1,6 @@
+#ifndef _COM37H3M05DTC_H
+#define _COM37H3M05DTC_H
+
+#define _BEAGLE_
+
+#endif