1 /* 2 * (C) Copyright 2010 3 * Texas Instruments, <www.ti.com> 4 * Syed Mohammed Khasim <khasim@ti.com> 5 * 6 * Referred to Linux Kernel DSS driver files for OMAP3 by 7 * Tomi Valkeinen from drivers/video/omap2/dss/ 8 * 9 * See file CREDITS for list of people who contributed to this 10 * project. 11 * 12 * This program is free software; you can redistribute it and/or 13 * modify it under the terms of the GNU General Public License as 14 * published by the Free Software Foundation's version 2 and any 15 * later version the License. 16 * 17 * This program is distributed in the hope that it will be useful, 18 * but WITHOUT ANY WARRANTY; without even the implied warranty of 19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 20 * GNU General Public License for more details. 21 * 22 * You should have received a copy of the GNU General Public License 23 * along with this program; if not, write to the Free Software 24 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, 25 * MA 02111-1307 USA 26 */ 27 28 #include <common.h> 29 #include <asm/io.h> 30 #include <asm/arch/dss.h> 31 #include <video_fb.h> 32 33 /* Configure VENC for a given Mode (NTSC / PAL) */ 34 void omap3_dss_venc_config(const struct venc_regs *venc_cfg, 35 u32 height, u32 width) 36 { 37 struct venc_regs *venc = (struct venc_regs *) OMAP3_VENC_BASE; 38 struct dss_regs *dss = (struct dss_regs *) OMAP3_DSS_BASE; 39 struct dispc_regs *dispc = (struct dispc_regs *) OMAP3_DISPC_BASE; 40 41 writel(venc_cfg->status, &venc->status); 42 writel(venc_cfg->f_control, &venc->f_control); 43 writel(venc_cfg->vidout_ctrl, &venc->vidout_ctrl); 44 writel(venc_cfg->sync_ctrl, &venc->sync_ctrl); 45 writel(venc_cfg->llen, &venc->llen); 46 writel(venc_cfg->flens, &venc->flens); 47 writel(venc_cfg->hfltr_ctrl, &venc->hfltr_ctrl); 48 writel(venc_cfg->cc_carr_wss_carr, &venc->cc_carr_wss_carr); 49 writel(venc_cfg->c_phase, &venc->c_phase); 50 writel(venc_cfg->gain_u, &venc->gain_u); 51 writel(venc_cfg->gain_v, &venc->gain_v); 52 writel(venc_cfg->gain_y, &venc->gain_y); 53 writel(venc_cfg->black_level, &venc->black_level); 54 writel(venc_cfg->blank_level, &venc->blank_level); 55 writel(venc_cfg->x_color, &venc->x_color); 56 writel(venc_cfg->m_control, &venc->m_control); 57 writel(venc_cfg->bstamp_wss_data, &venc->bstamp_wss_data); 58 writel(venc_cfg->s_carr, &venc->s_carr); 59 writel(venc_cfg->line21, &venc->line21); 60 writel(venc_cfg->ln_sel, &venc->ln_sel); 61 writel(venc_cfg->l21__wc_ctl, &venc->l21__wc_ctl); 62 writel(venc_cfg->htrigger_vtrigger, &venc->htrigger_vtrigger); 63 writel(venc_cfg->savid__eavid, &venc->savid__eavid); 64 writel(venc_cfg->flen__fal, &venc->flen__fal); 65 writel(venc_cfg->lal__phase_reset, &venc->lal__phase_reset); 66 writel(venc_cfg->hs_int_start_stop_x, &venc->hs_int_start_stop_x); 67 writel(venc_cfg->hs_ext_start_stop_x, &venc->hs_ext_start_stop_x); 68 writel(venc_cfg->vs_int_start_x, &venc->vs_int_start_x); 69 writel(venc_cfg->vs_int_stop_x__vs_int_start_y, 70 &venc->vs_int_stop_x__vs_int_start_y); 71 writel(venc_cfg->vs_int_stop_y__vs_ext_start_x, 72 &venc->vs_int_stop_y__vs_ext_start_x); 73 writel(venc_cfg->vs_ext_stop_x__vs_ext_start_y, 74 &venc->vs_ext_stop_x__vs_ext_start_y); 75 writel(venc_cfg->vs_ext_stop_y, &venc->vs_ext_stop_y); 76 writel(venc_cfg->avid_start_stop_x, &venc->avid_start_stop_x); 77 writel(venc_cfg->avid_start_stop_y, &venc->avid_start_stop_y); 78 writel(venc_cfg->fid_int_start_x__fid_int_start_y, 79 &venc->fid_int_start_x__fid_int_start_y); 80 writel(venc_cfg->fid_int_offset_y__fid_ext_start_x, 81 &venc->fid_int_offset_y__fid_ext_start_x); 82 writel(venc_cfg->fid_ext_start_y__fid_ext_offset_y, 83 &venc->fid_ext_start_y__fid_ext_offset_y); 84 writel(venc_cfg->tvdetgp_int_start_stop_x, 85 &venc->tvdetgp_int_start_stop_x); 86 writel(venc_cfg->tvdetgp_int_start_stop_y, 87 &venc->tvdetgp_int_start_stop_y); 88 writel(venc_cfg->gen_ctrl, &venc->gen_ctrl); 89 writel(venc_cfg->output_control, &venc->output_control); 90 writel(venc_cfg->dac_b__dac_c, &venc->dac_b__dac_c); 91 92 /* Configure DSS for VENC Settings */ 93 writel(VENC_CLK_ENABLE | DAC_DEMEN | DAC_POWERDN | VENC_OUT_SEL, 94 &dss->control); 95 96 /* Configure height and width for Digital out */ 97 writel(height << DIG_LPP_SHIFT | width, &dispc->size_dig); 98 } 99 100 /* Configure Panel Specific Parameters */ 101 void omap3_dss_panel_config(const struct panel_config *panel_cfg) 102 { 103 struct dispc_regs *dispc = (struct dispc_regs *) OMAP3_DISPC_BASE; 104 struct dss_regs *dss = (struct dss_regs *) OMAP3_DSS_BASE; 105 106 writel(DSS_SOFTRESET, &dss->sysconfig); 107 while (!(readl(&dss->sysstatus) & DSS_RESETDONE)) 108 ; 109 110 writel(panel_cfg->timing_h, &dispc->timing_h); 111 writel(panel_cfg->timing_v, &dispc->timing_v); 112 writel(panel_cfg->pol_freq, &dispc->pol_freq); 113 writel(panel_cfg->divisor, &dispc->divisor); 114 writel(panel_cfg->lcd_size, &dispc->size_lcd); 115 writel(panel_cfg->load_mode << LOADMODE_SHIFT, &dispc->config); 116 writel(panel_cfg->panel_type << TFTSTN_SHIFT | 117 panel_cfg->data_lines << DATALINES_SHIFT, &dispc->control); 118 writel(panel_cfg->panel_color, &dispc->default_color0); 119 writel((u32) panel_cfg->frame_buffer, &dispc->gfx_ba0); 120 121 if (!panel_cfg->frame_buffer) 122 return; 123 124 writel(panel_cfg->gfx_format | GFX_ENABLE, &dispc->gfx_attributes); 125 writel(1, &dispc->gfx_row_inc); 126 writel(1, &dispc->gfx_pixel_inc); 127 writel(panel_cfg->lcd_size, &dispc->gfx_size); 128 } 129 130 /* Enable LCD and DIGITAL OUT in DSS */ 131 void omap3_dss_enable(void) 132 { 133 struct dispc_regs *dispc = (struct dispc_regs *) OMAP3_DISPC_BASE; 134 u32 l; 135 136 l = readl(&dispc->control); 137 l |= LCD_ENABLE | GO_LCD | DIG_ENABLE | GO_DIG | GP_OUT0 | GP_OUT1; 138 writel(l, &dispc->control); 139 } 140 141 #ifdef CONFIG_CFB_CONSOLE 142 int __board_video_init(void) 143 { 144 return -1; 145 } 146 147 int board_video_init(void) 148 __attribute__((weak, alias("__board_video_init"))); 149 150 void *video_hw_init(void) 151 { 152 static GraphicDevice dssfb; 153 GraphicDevice *pGD = &dssfb; 154 struct dispc_regs *dispc = (struct dispc_regs *) OMAP3_DISPC_BASE; 155 156 if (board_video_init() || !readl(&dispc->gfx_ba0)) 157 return NULL; 158 159 pGD->winSizeX = (readl(&dispc->size_lcd) & 0x7FF) + 1; 160 pGD->winSizeY = ((readl(&dispc->size_lcd) >> 16) & 0x7FF) + 1; 161 pGD->gdfBytesPP = 4; 162 pGD->gdfIndex = GDF_32BIT_X888RGB; 163 pGD->frameAdrs = readl(&dispc->gfx_ba0); 164 165 return pGD; 166 } 167 #endif 168