From de701d118380de12a48c8a4fb345e9f909329432 Mon Sep 17 00:00:00 2001 From: Syed Mohammed Khasim Date: Tue, 19 Apr 2011 14:00:34 -0500 Subject: OMAP3: Add DSS driver for OMAP3 * Supports dynamic panel configuration * Supports dynamic tv standard selection * Adds support for DSS register access through generic APIs * Incorporated DSS register access using structures. * DSS makefile update Previous discussions are here: http://www.mail-archive.com/u-boot@lists.denx.de/msg27150.html Signed-off-by: Sandeep Paulraj --- arch/arm/include/asm/arch-omap3/dss.h | 174 ++++++++++++++++++++++++++++++++++ 1 file changed, 174 insertions(+) create mode 100644 arch/arm/include/asm/arch-omap3/dss.h (limited to 'arch/arm/include/asm') diff --git a/arch/arm/include/asm/arch-omap3/dss.h b/arch/arm/include/asm/arch-omap3/dss.h new file mode 100644 index 0000000..4c56e5e --- /dev/null +++ b/arch/arm/include/asm/arch-omap3/dss.h @@ -0,0 +1,174 @@ +/* + * (C) Copyright 2010 + * Texas Instruments, + * Syed Mohammed Khasim + * + * Referred to Linux Kernel DSS driver files for OMAP3 by + * Tomi Valkeinen from drivers/video/omap2/dss/ + * + * 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 and any + * later version 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 + +/* + * DSS Base Registers + */ +#define OMAP3_DSS_BASE 0x48050040 +#define OMAP3_DISPC_BASE 0x48050440 +#define OMAP3_VENC_BASE 0x48050C00 + +/* DSS Registers */ +struct dss_regs { + u32 control; /* 0x40 */ + u32 sdi_control; /* 0x44 */ + u32 pll_control; /* 0x48 */ +}; + +/* DISPC Registers */ +struct dispc_regs { + u32 control; /* 0x40 */ + u32 config; /* 0x44 */ + u32 reserve_2; /* 0x48 */ + u32 default_color0; /* 0x4C */ + u32 default_color1; /* 0x50 */ + u32 trans_color0; /* 0x54 */ + u32 trans_color1; /* 0x58 */ + u32 line_status; /* 0x5C */ + u32 line_number; /* 0x60 */ + u32 timing_h; /* 0x64 */ + u32 timing_v; /* 0x68 */ + u32 pol_freq; /* 0x6C */ + u32 divisor; /* 0x70 */ + u32 global_alpha; /* 0x74 */ + u32 size_dig; /* 0x78 */ + u32 size_lcd; /* 0x7C */ +}; + +/* VENC Registers */ +struct venc_regs { + u32 rev_id; /* 0x00 */ + u32 status; /* 0x04 */ + u32 f_control; /* 0x08 */ + u32 reserve_1; /* 0x0C */ + u32 vidout_ctrl; /* 0x10 */ + u32 sync_ctrl; /* 0x14 */ + u32 reserve_2; /* 0x18 */ + u32 llen; /* 0x1C */ + u32 flens; /* 0x20 */ + u32 hfltr_ctrl; /* 0x24 */ + u32 cc_carr_wss_carr; /* 0x28 */ + u32 c_phase; /* 0x2C */ + u32 gain_u; /* 0x30 */ + u32 gain_v; /* 0x34 */ + u32 gain_y; /* 0x38 */ + u32 black_level; /* 0x3C */ + u32 blank_level; /* 0x40 */ + u32 x_color; /* 0x44 */ + u32 m_control; /* 0x48 */ + u32 bstamp_wss_data; /* 0x4C */ + u32 s_carr; /* 0x50 */ + u32 line21; /* 0x54 */ + u32 ln_sel; /* 0x58 */ + u32 l21__wc_ctl; /* 0x5C */ + u32 htrigger_vtrigger; /* 0x60 */ + u32 savid__eavid; /* 0x64 */ + u32 flen__fal; /* 0x68 */ + u32 lal__phase_reset; /* 0x6C */ + u32 hs_int_start_stop_x; /* 0x70 */ + u32 hs_ext_start_stop_x; /* 0x74 */ + u32 vs_int_start_x; /* 0x78 */ + u32 vs_int_stop_x__vs_int_start_y; /* 0x7C */ + u32 vs_int_stop_y__vs_ext_start_x; /* 0x80 */ + u32 vs_ext_stop_x__vs_ext_start_y; /* 0x84 */ + u32 vs_ext_stop_y; /* 0x88 */ + u32 reserve_3; /* 0x8C */ + u32 avid_start_stop_x; /* 0x90 */ + u32 avid_start_stop_y; /* 0x94 */ + u32 reserve_4; /* 0x98 */ + u32 reserve_5; /* 0x9C */ + u32 fid_int_start_x__fid_int_start_y; /* 0xA0 */ + u32 fid_int_offset_y__fid_ext_start_x; /* 0xA4 */ + u32 fid_ext_start_y__fid_ext_offset_y; /* 0xA8 */ + u32 reserve_6; /* 0xAC */ + u32 tvdetgp_int_start_stop_x; /* 0xB0 */ + u32 tvdetgp_int_start_stop_y; /* 0xB4 */ + u32 gen_ctrl; /* 0xB8 */ + u32 reserve_7; /* 0xBC */ + u32 reserve_8; /* 0xC0 */ + u32 output_control; /* 0xC4 */ + u32 dac_b__dac_c; /* 0xC8 */ + u32 height_width; /* 0xCC */ +}; + +/* Few Register Offsets */ +#define FRAME_MODE_SHIFT 1 +#define TFTSTN_SHIFT 3 +#define DATALINES_SHIFT 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 DIG_LPP_SHIFT 16 +#define VENC_DSS_CONFIG (VENC_CLK_ENABLE | \ + DAC_DEMEN | \ + DAC_POWERDN | \ + VENC_OUT_SEL) +/* + * Panel Configuration + */ +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; + u32 panel_color; +}; + +/* + * Generic DSS Functions + */ +void omap3_dss_venc_config(const struct venc_regs *venc_cfg, + u32 height, u32 width); +void omap3_dss_panel_config(const struct panel_config *panel_cfg); +void omap3_dss_enable(void); + +#endif /* DSS_H */ -- cgit v1.1