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Fri, 08 Jan 2010 07:40:56 -0800 (PST) MIME-Version: 1.0 Received: by 10.142.66.15 with SMTP id o15mr4290107wfa.145.1262965256802; Fri, 08 Jan 2010 07:40:56 -0800 (PST) Date: Fri, 8 Jan 2010 21:10:56 +0530 Message-ID: Subject: [beagleboard] TI:OMAP: [PATCH 4/4] Minimal Display driver for OMAP3 From: Khasim Syed Mohammed To: u-boot@lists.denx.de, beagleboard@googlegroups.com X-Original-Authentication-Results: gmr-mx.google.com; spf=neutral (google.com: 209.85.216.201 is neither permitted nor denied by domain of khasim@beagleboard.org) smtp.mail=khasim@beagleboard.org X-Original-Sender: khasim@beagleboard.org Reply-To: beagleboard@googlegroups.com Precedence: list Mailing-list: list beagleboard@googlegroups.com; contact beagleboard+owners@googlegroups.com List-ID: List-Post: , List-Help: , List-Archive: X-Thread-Url: http://groups.google.com/group/beagleboard/t/fd7e94fa2f751bb7 X-Message-Url: http://groups.google.com/group/beagleboard/msg/d61a66a471b5b113 Sender: beagleboard@googlegroups.com List-Unsubscribe: , List-Subscribe: , Content-Type: multipart/mixed; boundary=0016e64cc3d48ed9db047ca903b2 --0016e64cc3d48ed9db047ca903b2 Content-Type: text/plain; charset=ISO-8859-1 From 239c47a4180fb4d5b5217f892955524d476916cf Mon Sep 17 00:00:00 2001 From: Syed Mohammed Khasim Date: Fri, 8 Jan 2010 21:01:44 +0530 Subject: [PATCH] Minimal Display driver for OMAP3 Supports dynamic configuration of Panel and Video Encoder Supports Background color on DVID Supports Color bar on S-Video Signed-off-by: Syed Mohammed Khasim --- board/ti/beagle/beagle.c | 13 +++ board/ti/beagle/beagle.h | 73 ++++++++++++++ drivers/video/Makefile | 1 + drivers/video/omap3_dss.c | 128 +++++++++++++++++++++++++ include/asm-arm/arch-omap3/dss.h | 193 ++++++++++++++++++++++++++++++++++++++ include/configs/omap3_beagle.h | 1 + 6 files changed, 409 insertions(+), 0 deletions(-) create mode 100644 drivers/video/omap3_dss.c create mode 100644 include/asm-arm/arch-omap3/dss.h diff --git a/board/ti/beagle/beagle.c b/board/ti/beagle/beagle.c index 7985ee9..29e47c8 100644 --- a/board/ti/beagle/beagle.c +++ b/board/ti/beagle/beagle.c @@ -114,6 +114,17 @@ void beagle_identify(void) } /* + * Configure DSS to display background color on DVID + * Configure VENC to display color bar on S-Video + */ +void display_init(void) +{ + omap3_dss_venc_config(&venc_config_std_tv); + omap3_dss_panel_config(&dvid_cfg); + omap3_dss_set_background_col(DVI_BEAGLE_ORANGE_COL); +} + +/* * Routine: misc_init_r * Description: Configure board specific parts */ @@ -122,6 +133,7 @@ int misc_init_r(void) struct gpio *gpio5_base = (struct gpio *)OMAP34XX_GPIO5_BASE; struct gpio *gpio6_base = (struct gpio *)OMAP34XX_GPIO6_BASE; + display_init(); beagle_identify(); twl4030_power_init(); @@ -154,6 +166,7 @@ int misc_init_r(void) writel(GPIO31 | GPIO30 | GPIO29 | GPIO28 | GPIO22 | GPIO21 | GPIO15 | GPIO14 | GPIO13 | GPIO12, &gpio5_base->setdataout); + omap3_dss_enable(); dieid_num_r(); return 0; diff --git a/board/ti/beagle/beagle.h b/board/ti/beagle/beagle.h index b1720c9..7f6769f 100644 --- a/board/ti/beagle/beagle.h +++ b/board/ti/beagle/beagle.h @@ -23,6 +23,8 @@ #ifndef _BEAGLE_H_ #define _BEAGLE_H_ +#include + const omap3_sysinfo sysinfo = { DDR_STACKED, "OMAP3 Beagle board", @@ -385,4 +387,75 @@ const omap3_sysinfo sysinfo = { MUX_VAL(CP(UART2_RTS), (IDIS | PTD | DIS | M0)) /*UART2_RTS*/\ MUX_VAL(CP(UART2_TX), (IDIS | PTD | DIS | M0)) /*UART2_TX*/ +/* + * Display Configuration + */ + +#define DVI_BEAGLE_ORANGE_COL 0x00FF8000 + +/* + * Configure VENC in DSS for Beagle to generate Color Bar + * + * Kindly refer to OMAP TRM for definition of these values. + */ +static const struct venc_config venc_config_std_tv = { + .status = 0x0000001B, + .f_control = 0x00000040, + .vidout_ctrl = 0x00000000, + .sync_ctrl = 0x00008000, + .llen = 0x00008359, + .flens = 0x0000020C, + .hfltr_ctrl = 0x00000000, + .cc_carr_wss_carr = 0x043F2631, + .c_phase = 0x00000024, + .gain_u = 0x00000130, + .gain_v = 0x00000198, + .gain_y = 0x000001C0, + .black_level = 0x0000006A, + .blank_level = 0x0000005C, + .x_color = 0x00000000, + .m_control = 0x00000001, + .bstamp_wss_data = 0x0000003F, + .s_carr = 0x21F07C1F, + .line21 = 0x00000000, + .ln_sel = 0x00000015, + .l21__wc_ctl = 0x00001400, + .htrigger_vtrigger = 0x00000000, + .savid__eavid = 0x069300F4, + .flen__fal = 0x0016020C, + .lal__phase_reset = 0x00060107, + .hs_int_start_stop_x = 0x008D034E, + .hs_ext_start_stop_x = 0x000F0359, + .vs_int_start_x = 0x01A00000, + .vs_int_stop_x__vs_int_start_y = 0x020501A0, + .vs_int_stop_y__vs_ext_start_x = 0x01AC0024, + .vs_ext_stop_x__vs_ext_start_y = 0x020D01AC, + .vs_ext_stop_y = 0x00000006, + .avid_start_stop_x = 0x03480079, + .avid_start_stop_y = 0x02040024, + .fid_int_start_x__fid_int_start_y = 0x0001008A, + .fid_int_offset_y__fid_ext_start_x = 0x01AC0106, + .fid_ext_start_y__fid_ext_offset_y = 0x01060006, + .tvdetgp_int_start_stop_x = 0x00140001, + .tvdetgp_int_start_stop_y = 0x00010001, + .gen_ctrl = 0x00FF0000, + .output_control = 0x0000000D, + .dac_b__dac_c = 0x00000000, + .height_width = 0x00ef027f +}; + +/* + * Configure Timings for DVI D + */ +static const struct panel_config dvid_cfg = { + .timing_h = 0x0ff03f31, /* Horizantal timing */ + .timing_v = 0x01400504, /* Vertical timing */ + .pol_freq = 0x00007028, /* Pol Freq */ + .divisor = 0x00010006, /* 72Mhz Pixel Clock */ + .lcd_size = 0x02ff03ff, /* 1024x768 */ + .panel_type = 0x01, /* TFT */ + .data_lines = 0x03, /* 24 Bit RGB */ + .load_mode = 0x02 /* Frame Mode */ +}; + #endif diff --git a/drivers/video/Makefile b/drivers/video/Makefile index bb6b5a0..cb15dc2 100644 --- a/drivers/video/Makefile +++ b/drivers/video/Makefile @@ -37,6 +37,7 @@ COBJS-$(CONFIG_SED156X) += sed156x.o COBJS-$(CONFIG_VIDEO_SM501) += sm501.o COBJS-$(CONFIG_VIDEO_SMI_LYNXEM) += smiLynxEM.o COBJS-$(CONFIG_VIDEO_VCXK) += bus_vcxk.o +COBJS-$(CONFIG_VIDEO_OMAP3) += omap3_dss.o COBJS-y += videomodes.o COBJS := $(COBJS-y) diff --git a/drivers/video/omap3_dss.c b/drivers/video/omap3_dss.c new file mode 100644 index 0000000..2ead7b9 --- /dev/null +++ b/drivers/video/omap3_dss.c @@ -0,0 +1,128 @@ +/* + * (C) Copyright 2010 + * Texas Instruments, + * Syed Mohammed Khasim + * + * Referred to Linux DSS driver files for OMAP3 + * + * See file CREDITS for list of people who contributed to this + * project. + * + * 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's version 2 of + * the License. + * + * 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 +#include +#include + +/* + * VENC configuration + */ +void omap3_dss_venc_config(const struct venc_config *venc_cfg) +{ + dss_write_reg(VENC_STATUS, venc_cfg->status); + dss_write_reg(VENC_F_CONTROL, venc_cfg->f_control); + dss_write_reg(VENC_VIDOUT_CTRL, venc_cfg->vidout_ctrl); + dss_write_reg(VENC_SYNC_CTRL, venc_cfg->sync_ctrl); + dss_write_reg(VENC_LLEN, venc_cfg->llen); + dss_write_reg(VENC_FLENS, venc_cfg->flens); + dss_write_reg(VENC_HFLTR_CTRL, venc_cfg->hfltr_ctrl); + dss_write_reg(VENC_CC_CARR_WSS_CARR, venc_cfg->cc_carr_wss_carr); + dss_write_reg(VENC_C_PHASE, venc_cfg->c_phase); + dss_write_reg(VENC_GAIN_U, venc_cfg->gain_u); + dss_write_reg(VENC_GAIN_V, venc_cfg->gain_v); + dss_write_reg(VENC_GAIN_Y, venc_cfg->gain_y); + dss_write_reg(VENC_BLACK_LEVEL, venc_cfg->black_level); + dss_write_reg(VENC_BLANK_LEVEL, venc_cfg->blank_level); + dss_write_reg(VENC_X_COLOR, venc_cfg->x_color); + dss_write_reg(VENC_M_CONTROL, venc_cfg->m_control); + dss_write_reg(VENC_BSTAMP_WSS_DATA, venc_cfg->bstamp_wss_data); + dss_write_reg(VENC_S_CARR, venc_cfg->s_carr); + dss_write_reg(VENC_LINE21, venc_cfg->line21); + dss_write_reg(VENC_LN_SEL, venc_cfg->ln_sel); + dss_write_reg(VENC_L21__WC_CTL, venc_cfg->l21__wc_ctl); + dss_write_reg(VENC_HTRIGGER_VTRIGGER, venc_cfg->htrigger_vtrigger); + dss_write_reg(VENC_SAVID__EAVID, venc_cfg->savid__eavid); + dss_write_reg(VENC_FLEN__FAL, venc_cfg->flen__fal); + dss_write_reg(VENC_LAL__PHASE_RESET, venc_cfg->lal__phase_reset); + dss_write_reg(VENC_HS_INT_START_STOP_X, + venc_cfg->hs_int_start_stop_x); + dss_write_reg(VENC_HS_EXT_START_STOP_X, + venc_cfg->hs_ext_start_stop_x); + dss_write_reg(VENC_VS_INT_START_X, venc_cfg->vs_int_start_x); + dss_write_reg(VENC_VS_INT_STOP_X__VS_INT_START_Y, + venc_cfg->vs_int_stop_x__vs_int_start_y); + dss_write_reg(VENC_VS_INT_STOP_Y__VS_EXT_START_X, + venc_cfg->vs_int_stop_y__vs_ext_start_x); + dss_write_reg(VENC_VS_EXT_STOP_X__VS_EXT_START_Y, + venc_cfg->vs_ext_stop_x__vs_ext_start_y); + dss_write_reg(VENC_VS_EXT_STOP_Y, venc_cfg->vs_ext_stop_y); + dss_write_reg(VENC_AVID_START_STOP_X, venc_cfg->avid_start_stop_x); + dss_write_reg(VENC_AVID_START_STOP_Y, venc_cfg->avid_start_stop_y); + dss_write_reg(VENC_FID_INT_START_X__FID_INT_START_Y, + venc_cfg->fid_int_start_x__fid_int_start_y); + dss_write_reg(VENC_FID_INT_OFFSET_Y__FID_EXT_START_X, + venc_cfg->fid_int_offset_y__fid_ext_start_x); + dss_write_reg(VENC_FID_EXT_START_Y__FID_EXT_OFFSET_Y, + venc_cfg->fid_ext_start_y__fid_ext_offset_y); + dss_write_reg(VENC_TVDETGP_INT_START_STOP_X, + venc_cfg->tvdetgp_int_start_stop_x); + dss_write_reg(VENC_TVDETGP_INT_START_STOP_Y, + venc_cfg->tvdetgp_int_start_stop_y); + dss_write_reg(VENC_GEN_CTRL, venc_cfg->gen_ctrl); + dss_write_reg(VENC_OUTPUT_CONTROL, venc_cfg->output_control); + dss_write_reg(VENC_DAC_B__DAC_C, venc_cfg->dac_b__dac_c); + dss_write_reg(DISPC_SIZE_DIG, venc_cfg->height_width); + dss_write_reg(DSS_CONTROL, VENC_DSS_CONFIG); +} + +/* + * Configure Panel Specific parameters + */ +void omap3_dss_panel_config(const struct panel_config *panel_cfg) +{ + dss_write_reg(DISPC_TIMING_H, panel_cfg->timing_h); + dss_write_reg(DISPC_TIMING_V, panel_cfg->timing_v); + dss_write_reg(DISPC_POL_FREQ, panel_cfg->pol_freq); + dss_write_reg(DISPC_DIVISOR, panel_cfg->divisor); + dss_write_reg(DISPC_SIZE_LCD, panel_cfg->lcd_size); + dss_write_reg(DISPC_CONFIG, + (panel_cfg->load_mode << FRAME_MODE_OFFSET)); + dss_write_reg(DISPC_CONTROL, + ((panel_cfg->panel_type << TFTSTN_OFFSET) | + (panel_cfg->data_lines << DATALINES_OFFSET))); +} + +/* + * Enable LCD and DIGITAL OUT in DSS + */ +void omap3_dss_enable(void) +{ + u32 l = 0; + + l = dss_read_reg(DISPC_CONTROL); + l |= DISPC_ENABLE; + + dss_write_reg(DISPC_CONTROL, l); +} + +/* + * Set Background Color in DISPC + */ +void omap3_dss_set_background_col(u32 color) +{ + dss_write_reg(DISPC_DEFAULT_COLOR0, color); +} diff --git a/include/asm-arm/arch-omap3/dss.h b/include/asm-arm/arch-omap3/dss.h new file mode 100644 index 0000000..08c7d8d --- /dev/null +++ b/include/asm-arm/arch-omap3/dss.h @@ -0,0 +1,193 @@ +/* + * (C) Copyright 2010 + * Texas Instruments, + * Syed Mohammed Khasim + * + * Referred to Linux DSS driver files for OMAP3 + * + * See file CREDITS for list of people who contributed to this + * project. + * + * 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's version 2 of + * the License. + * + * 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 + */ + +#ifndef DSS_H +#define DSS_H + +/* VENC Register address */ +#define VENC_REV_ID 0x48050C00 +#define VENC_STATUS 0x48050C04 +#define VENC_F_CONTROL 0x48050C08 +#define VENC_VIDOUT_CTRL 0x48050C10 +#define VENC_SYNC_CTRL 0x48050C14 +#define VENC_LLEN 0x48050C1C +#define VENC_FLENS 0x48050C20 +#define VENC_HFLTR_CTRL 0x48050C24 +#define VENC_CC_CARR_WSS_CARR 0x48050C28 +#define VENC_C_PHASE 0x48050C2C +#define VENC_GAIN_U 0x48050C30 +#define VENC_GAIN_V 0x48050C34 +#define VENC_GAIN_Y 0x48050C38 +#define VENC_BLACK_LEVEL 0x48050C3C +#define VENC_BLANK_LEVEL 0x48050C40 +#define VENC_X_COLOR 0x48050C44 +#define VENC_M_CONTROL 0x48050C48 +#define VENC_BSTAMP_WSS_DATA 0x48050C4C +#define VENC_S_CARR 0x48050C50 +#define VENC_LINE21 0x48050C54 +#define VENC_LN_SEL 0x48050C58 +#define VENC_L21__WC_CTL 0x48050C5C +#define VENC_HTRIGGER_VTRIGGER 0x48050C60 +#define VENC_SAVID__EAVID 0x48050C64 +#define VENC_FLEN__FAL 0x48050C68 +#define VENC_LAL__PHASE_RESET 0x48050C6C +#define VENC_HS_INT_START_STOP_X 0x48050C70 +#define VENC_HS_EXT_START_STOP_X 0x48050C74 +#define VENC_VS_INT_START_X 0x48050C78 +#define VENC_VS_INT_STOP_X__VS_INT_START_Y 0x48050C7C +#define VENC_VS_INT_STOP_Y__VS_EXT_START_X 0x48050C80 +#define VENC_VS_EXT_STOP_X__VS_EXT_START_Y 0x48050C84 +#define VENC_VS_EXT_STOP_Y 0x48050C88 +#define VENC_AVID_START_STOP_X 0x48050C90 +#define VENC_AVID_START_STOP_Y 0x48050C94 +#define VENC_FID_INT_START_X__FID_INT_START_Y 0x48050CA0 +#define VENC_FID_INT_OFFSET_Y__FID_EXT_START_X 0x48050CA4 +#define VENC_FID_EXT_START_Y__FID_EXT_OFFSET_Y 0x48050CA8 +#define VENC_TVDETGP_INT_START_STOP_X 0x48050CB0 +#define VENC_TVDETGP_INT_START_STOP_Y 0x48050CB4 +#define VENC_GEN_CTRL 0x48050CB8 +#define VENC_OUTPUT_CONTROL 0x48050CC4 +#define VENC_DAC_B__DAC_C 0x48050CC8 + +/* DSS register addresses */ +#define DSS_SYSCONFIG 0x48050010 +#define DSS_CONTROL 0x48050040 + +/* DISPC register addresses */ +#define DISPC_SYSCONFIG 0x48050410 +#define DISPC_SYSSTATUS 0x48050414 +#define DISPC_CONTROL 0x48050440 +#define DISPC_CONFIG 0x48050444 +#define DISPC_DEFAULT_COLOR0 0x4805044c +#define DISPC_DEFAULT_COLOR1 0x48050450 +#define DISPC_TRANS_COLOR0 0x48050454 +#define DISPC_TRANS_COLOR1 0x48050458 +#define DISPC_TIMING_H 0x48050464 +#define DISPC_TIMING_V 0x48050468 +#define DISPC_POL_FREQ 0x4805046c +#define DISPC_DIVISOR 0x48050470 +#define DISPC_SIZE_DIG 0x48050478 +#define DISPC_SIZE_LCD 0x4805047c + +/* Few Register Offsets */ +#define FRAME_MODE_OFFSET 1 +#define TFTSTN_OFFSET 3 +#define DATALINES_OFFSET 8 + +/* Enabling Display controller */ +#define LCD_ENABLE 1 +#define DIG_ENABLE (1 << 1) +#define GO_LCD (1 << 5) +#define GO_DIG (1 << 6) +#define GP_OUT0 (1 << 15) +#define GP_OUT1 (1 << 16) + +#define DISPC_ENABLE (LCD_ENABLE | \ + DIG_ENABLE | \ + GO_LCD | \ + GO_DIG | \ + GP_OUT0| \ + GP_OUT1) +/* Configure VENC DSS Params */ +#define VENC_CLK_ENABLE (1 << 3) +#define DAC_DEMEN (1 << 4) +#define DAC_POWERDN (1 << 5) +#define VENC_OUT_SEL (1 << 6) + +#define VENC_DSS_CONFIG (VENC_CLK_ENABLE | \ + DAC_DEMEN | \ + DAC_POWERDN | \ + VENC_OUT_SEL) + +struct venc_config { + u32 status; + u32 f_control; + u32 vidout_ctrl; + u32 sync_ctrl; + u32 llen; + u32 flens; + u32 hfltr_ctrl; + u32 cc_carr_wss_carr; + u32 c_phase; + u32 gain_u; + u32 gain_v; + u32 gain_y; + u32 black_level; + u32 blank_level; + u32 x_color; + u32 m_control; + u32 bstamp_wss_data; + u32 s_carr; + u32 line21; + u32 ln_sel; + u32 l21__wc_ctl; + u32 htrigger_vtrigger; + u32 savid__eavid; + u32 flen__fal; + u32 lal__phase_reset; + u32 hs_int_start_stop_x; + u32 hs_ext_start_stop_x; + u32 vs_int_start_x; + u32 vs_int_stop_x__vs_int_start_y; + u32 vs_int_stop_y__vs_ext_start_x; + u32 vs_ext_stop_x__vs_ext_start_y; + u32 vs_ext_stop_y; + u32 avid_start_stop_x; + u32 avid_start_stop_y; + u32 fid_int_start_x__fid_int_start_y; + u32 fid_int_offset_y__fid_ext_start_x; + u32 fid_ext_start_y__fid_ext_offset_y; + u32 tvdetgp_int_start_stop_x; + u32 tvdetgp_int_start_stop_y; + u32 gen_ctrl; + u32 output_control; + u32 dac_b__dac_c; + u32 height_width; +}; + +struct panel_config { + u32 timing_h; + u32 timing_v; + u32 pol_freq; + u32 divisor; + u32 lcd_size; + u32 panel_type; + u32 data_lines; + u32 load_mode; +}; + +static inline void dss_write_reg(int reg, u32 val) +{ + __raw_writel(val, reg); +} + +static inline u32 dss_read_reg(int reg) +{ + u32 l = __raw_readl(reg); + return l; +} + +#endif /* DSS_H */ diff --git a/include/configs/omap3_beagle.h b/include/configs/omap3_beagle.h index ff6d432..2c15df9 100644 --- a/include/configs/omap3_beagle.h +++ b/include/configs/omap3_beagle.h @@ -120,6 +120,7 @@ #define CONFIG_CMD_I2C /* I2C serial bus support */ #define CONFIG_CMD_MMC /* MMC support */ #define CONFIG_CMD_NAND /* NAND support */ +#define CONFIG_VIDEO_OMAP3 /* DSS Support */ #undef CONFIG_CMD_FLASH /* flinfo, erase, protect */ #undef CONFIG_CMD_FPGA /* FPGA configuration Support */ -- 1.5.6.3 --0016e64cc3d48ed9db047ca903b2 Content-Type: text/plain; charset=ISO-8859-1 -- You received this message because you are subscribed to the Google Groups "Beagle Board" group. 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