diff options
| -rw-r--r-- | board/goldelico/beagle-expander/COM37H3M05DTC.c | 140 | ||||
| -rw-r--r-- | board/goldelico/beagle-expander/COM37H3M05DTC.h | 6 |
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 |