15dda7945SStefano Babic /* 25dda7945SStefano Babic * Porting to u-boot: 35dda7945SStefano Babic * 45dda7945SStefano Babic * (C) Copyright 2010 55dda7945SStefano Babic * Stefano Babic, DENX Software Engineering, sbabic@denx.de 65dda7945SStefano Babic * 75dda7945SStefano Babic * MX51 Linux framebuffer: 85dda7945SStefano Babic * 95dda7945SStefano Babic * (C) Copyright 2004-2010 Freescale Semiconductor, Inc. 105dda7945SStefano Babic * 111a459660SWolfgang Denk * SPDX-License-Identifier: GPL-2.0+ 125dda7945SStefano Babic */ 135dda7945SStefano Babic 145dda7945SStefano Babic #include <common.h> 155dda7945SStefano Babic #include <asm/errno.h> 16a69214dcSEric Nelson #include <asm/global_data.h> 175dda7945SStefano Babic #include <linux/string.h> 185dda7945SStefano Babic #include <linux/list.h> 195dda7945SStefano Babic #include <linux/fb.h> 205dda7945SStefano Babic #include <asm/io.h> 215dda7945SStefano Babic #include <malloc.h> 22e9934f0bSStefano Babic #include <video_fb.h> 235dda7945SStefano Babic #include "videomodes.h" 245dda7945SStefano Babic #include "ipu.h" 255dda7945SStefano Babic #include "mxcfb.h" 265f8e17ceSEric Nelson #include "ipu_regs.h" 275dda7945SStefano Babic 28a69214dcSEric Nelson DECLARE_GLOBAL_DATA_PTR; 29a69214dcSEric Nelson 305dda7945SStefano Babic static int mxcfb_map_video_memory(struct fb_info *fbi); 315dda7945SStefano Babic static int mxcfb_unmap_video_memory(struct fb_info *fbi); 325dda7945SStefano Babic 33e9934f0bSStefano Babic /* graphics setup */ 34e9934f0bSStefano Babic static GraphicDevice panel; 3509c8bb26SEric Nelson static struct fb_videomode const *gmode; 3602ae1a18SMarek Vasut static uint8_t gdisp; 3702ae1a18SMarek Vasut static uint32_t gpixfmt; 385dda7945SStefano Babic 39*c5fe2532SJeroen Hofstee static void fb_videomode_to_var(struct fb_var_screeninfo *var, 405dda7945SStefano Babic const struct fb_videomode *mode) 415dda7945SStefano Babic { 425dda7945SStefano Babic var->xres = mode->xres; 435dda7945SStefano Babic var->yres = mode->yres; 445dda7945SStefano Babic var->xres_virtual = mode->xres; 455dda7945SStefano Babic var->yres_virtual = mode->yres; 465dda7945SStefano Babic var->xoffset = 0; 475dda7945SStefano Babic var->yoffset = 0; 485dda7945SStefano Babic var->pixclock = mode->pixclock; 495dda7945SStefano Babic var->left_margin = mode->left_margin; 505dda7945SStefano Babic var->right_margin = mode->right_margin; 515dda7945SStefano Babic var->upper_margin = mode->upper_margin; 525dda7945SStefano Babic var->lower_margin = mode->lower_margin; 535dda7945SStefano Babic var->hsync_len = mode->hsync_len; 545dda7945SStefano Babic var->vsync_len = mode->vsync_len; 555dda7945SStefano Babic var->sync = mode->sync; 565dda7945SStefano Babic var->vmode = mode->vmode & FB_VMODE_MASK; 575dda7945SStefano Babic } 585dda7945SStefano Babic 595dda7945SStefano Babic /* 605dda7945SStefano Babic * Structure containing the MXC specific framebuffer information. 615dda7945SStefano Babic */ 625dda7945SStefano Babic struct mxcfb_info { 635dda7945SStefano Babic int blank; 645dda7945SStefano Babic ipu_channel_t ipu_ch; 655dda7945SStefano Babic int ipu_di; 665dda7945SStefano Babic u32 ipu_di_pix_fmt; 675dda7945SStefano Babic unsigned char overlay; 685dda7945SStefano Babic unsigned char alpha_chan_en; 695dda7945SStefano Babic dma_addr_t alpha_phy_addr0; 705dda7945SStefano Babic dma_addr_t alpha_phy_addr1; 715dda7945SStefano Babic void *alpha_virt_addr0; 725dda7945SStefano Babic void *alpha_virt_addr1; 735dda7945SStefano Babic uint32_t alpha_mem_len; 745dda7945SStefano Babic uint32_t cur_ipu_buf; 755dda7945SStefano Babic uint32_t cur_ipu_alpha_buf; 765dda7945SStefano Babic 775dda7945SStefano Babic u32 pseudo_palette[16]; 785dda7945SStefano Babic }; 795dda7945SStefano Babic 805dda7945SStefano Babic enum { 815dda7945SStefano Babic BOTH_ON, 825dda7945SStefano Babic SRC_ON, 835dda7945SStefano Babic TGT_ON, 845dda7945SStefano Babic BOTH_OFF 855dda7945SStefano Babic }; 865dda7945SStefano Babic 875dda7945SStefano Babic static unsigned long default_bpp = 16; 885dda7945SStefano Babic static unsigned char g_dp_in_use; 895dda7945SStefano Babic static struct fb_info *mxcfb_info[3]; 905dda7945SStefano Babic static int ext_clk_used; 915dda7945SStefano Babic 925dda7945SStefano Babic static uint32_t bpp_to_pixfmt(struct fb_info *fbi) 935dda7945SStefano Babic { 945dda7945SStefano Babic uint32_t pixfmt = 0; 955dda7945SStefano Babic 965dda7945SStefano Babic debug("bpp_to_pixfmt: %d\n", fbi->var.bits_per_pixel); 975dda7945SStefano Babic 985dda7945SStefano Babic if (fbi->var.nonstd) 995dda7945SStefano Babic return fbi->var.nonstd; 1005dda7945SStefano Babic 1015dda7945SStefano Babic switch (fbi->var.bits_per_pixel) { 1025dda7945SStefano Babic case 24: 1035dda7945SStefano Babic pixfmt = IPU_PIX_FMT_BGR24; 1045dda7945SStefano Babic break; 1055dda7945SStefano Babic case 32: 1065dda7945SStefano Babic pixfmt = IPU_PIX_FMT_BGR32; 1075dda7945SStefano Babic break; 1085dda7945SStefano Babic case 16: 1095dda7945SStefano Babic pixfmt = IPU_PIX_FMT_RGB565; 1105dda7945SStefano Babic break; 1115dda7945SStefano Babic } 1125dda7945SStefano Babic return pixfmt; 1135dda7945SStefano Babic } 1145dda7945SStefano Babic 1155dda7945SStefano Babic /* 1165dda7945SStefano Babic * Set fixed framebuffer parameters based on variable settings. 1175dda7945SStefano Babic * 1185dda7945SStefano Babic * @param info framebuffer information pointer 1195dda7945SStefano Babic */ 1205dda7945SStefano Babic static int mxcfb_set_fix(struct fb_info *info) 1215dda7945SStefano Babic { 1225dda7945SStefano Babic struct fb_fix_screeninfo *fix = &info->fix; 1235dda7945SStefano Babic struct fb_var_screeninfo *var = &info->var; 1245dda7945SStefano Babic 1255dda7945SStefano Babic fix->line_length = var->xres_virtual * var->bits_per_pixel / 8; 1265dda7945SStefano Babic 1275dda7945SStefano Babic fix->type = FB_TYPE_PACKED_PIXELS; 1285dda7945SStefano Babic fix->accel = FB_ACCEL_NONE; 1295dda7945SStefano Babic fix->visual = FB_VISUAL_TRUECOLOR; 1305dda7945SStefano Babic fix->xpanstep = 1; 1315dda7945SStefano Babic fix->ypanstep = 1; 1325dda7945SStefano Babic 1335dda7945SStefano Babic return 0; 1345dda7945SStefano Babic } 1355dda7945SStefano Babic 1365dda7945SStefano Babic static int setup_disp_channel1(struct fb_info *fbi) 1375dda7945SStefano Babic { 1385dda7945SStefano Babic ipu_channel_params_t params; 1395dda7945SStefano Babic struct mxcfb_info *mxc_fbi = (struct mxcfb_info *)fbi->par; 1405dda7945SStefano Babic 1415dda7945SStefano Babic memset(¶ms, 0, sizeof(params)); 1425dda7945SStefano Babic params.mem_dp_bg_sync.di = mxc_fbi->ipu_di; 1435dda7945SStefano Babic 1445dda7945SStefano Babic debug("%s called\n", __func__); 1455dda7945SStefano Babic /* 1465dda7945SStefano Babic * Assuming interlaced means yuv output, below setting also 1475dda7945SStefano Babic * valid for mem_dc_sync. FG should have the same vmode as BG. 1485dda7945SStefano Babic */ 1495dda7945SStefano Babic if (fbi->var.vmode & FB_VMODE_INTERLACED) { 1505dda7945SStefano Babic params.mem_dp_bg_sync.interlaced = 1; 1515dda7945SStefano Babic params.mem_dp_bg_sync.out_pixel_fmt = 1525dda7945SStefano Babic IPU_PIX_FMT_YUV444; 1535dda7945SStefano Babic } else { 1545dda7945SStefano Babic if (mxc_fbi->ipu_di_pix_fmt) { 1555dda7945SStefano Babic params.mem_dp_bg_sync.out_pixel_fmt = 1565dda7945SStefano Babic mxc_fbi->ipu_di_pix_fmt; 1575dda7945SStefano Babic } else { 1585dda7945SStefano Babic params.mem_dp_bg_sync.out_pixel_fmt = 1595dda7945SStefano Babic IPU_PIX_FMT_RGB666; 1605dda7945SStefano Babic } 1615dda7945SStefano Babic } 1625dda7945SStefano Babic params.mem_dp_bg_sync.in_pixel_fmt = bpp_to_pixfmt(fbi); 1635dda7945SStefano Babic if (mxc_fbi->alpha_chan_en) 1645dda7945SStefano Babic params.mem_dp_bg_sync.alpha_chan_en = 1; 1655dda7945SStefano Babic 1665dda7945SStefano Babic ipu_init_channel(mxc_fbi->ipu_ch, ¶ms); 1675dda7945SStefano Babic 1685dda7945SStefano Babic return 0; 1695dda7945SStefano Babic } 1705dda7945SStefano Babic 1715dda7945SStefano Babic static int setup_disp_channel2(struct fb_info *fbi) 1725dda7945SStefano Babic { 1735dda7945SStefano Babic int retval = 0; 1745dda7945SStefano Babic struct mxcfb_info *mxc_fbi = (struct mxcfb_info *)fbi->par; 1755dda7945SStefano Babic 1765dda7945SStefano Babic mxc_fbi->cur_ipu_buf = 1; 1775dda7945SStefano Babic if (mxc_fbi->alpha_chan_en) 1785dda7945SStefano Babic mxc_fbi->cur_ipu_alpha_buf = 1; 1795dda7945SStefano Babic 1805dda7945SStefano Babic fbi->var.xoffset = fbi->var.yoffset = 0; 1815dda7945SStefano Babic 1825dda7945SStefano Babic debug("%s: %x %d %d %d %lx %lx\n", 1835dda7945SStefano Babic __func__, 1845dda7945SStefano Babic mxc_fbi->ipu_ch, 1855dda7945SStefano Babic fbi->var.xres, 1865dda7945SStefano Babic fbi->var.yres, 1875dda7945SStefano Babic fbi->fix.line_length, 1885dda7945SStefano Babic fbi->fix.smem_start, 1895dda7945SStefano Babic fbi->fix.smem_start + 1905dda7945SStefano Babic (fbi->fix.line_length * fbi->var.yres)); 1915dda7945SStefano Babic 1925dda7945SStefano Babic retval = ipu_init_channel_buffer(mxc_fbi->ipu_ch, IPU_INPUT_BUFFER, 1935dda7945SStefano Babic bpp_to_pixfmt(fbi), 1945dda7945SStefano Babic fbi->var.xres, fbi->var.yres, 1955dda7945SStefano Babic fbi->fix.line_length, 1965dda7945SStefano Babic fbi->fix.smem_start + 1975dda7945SStefano Babic (fbi->fix.line_length * fbi->var.yres), 1985dda7945SStefano Babic fbi->fix.smem_start, 1995dda7945SStefano Babic 0, 0); 2005dda7945SStefano Babic if (retval) 2015dda7945SStefano Babic printf("ipu_init_channel_buffer error %d\n", retval); 2025dda7945SStefano Babic 2035dda7945SStefano Babic return retval; 2045dda7945SStefano Babic } 2055dda7945SStefano Babic 2065dda7945SStefano Babic /* 2075dda7945SStefano Babic * Set framebuffer parameters and change the operating mode. 2085dda7945SStefano Babic * 2095dda7945SStefano Babic * @param info framebuffer information pointer 2105dda7945SStefano Babic */ 2115dda7945SStefano Babic static int mxcfb_set_par(struct fb_info *fbi) 2125dda7945SStefano Babic { 2135dda7945SStefano Babic int retval = 0; 2145dda7945SStefano Babic u32 mem_len; 2155dda7945SStefano Babic ipu_di_signal_cfg_t sig_cfg; 2165dda7945SStefano Babic struct mxcfb_info *mxc_fbi = (struct mxcfb_info *)fbi->par; 2175dda7945SStefano Babic uint32_t out_pixel_fmt; 2185dda7945SStefano Babic 2195dda7945SStefano Babic ipu_disable_channel(mxc_fbi->ipu_ch); 2205dda7945SStefano Babic ipu_uninit_channel(mxc_fbi->ipu_ch); 2215dda7945SStefano Babic mxcfb_set_fix(fbi); 2225dda7945SStefano Babic 2235dda7945SStefano Babic mem_len = fbi->var.yres_virtual * fbi->fix.line_length; 2245dda7945SStefano Babic if (!fbi->fix.smem_start || (mem_len > fbi->fix.smem_len)) { 2255dda7945SStefano Babic if (fbi->fix.smem_start) 2265dda7945SStefano Babic mxcfb_unmap_video_memory(fbi); 2275dda7945SStefano Babic 2285dda7945SStefano Babic if (mxcfb_map_video_memory(fbi) < 0) 2295dda7945SStefano Babic return -ENOMEM; 2305dda7945SStefano Babic } 2315dda7945SStefano Babic 2325dda7945SStefano Babic setup_disp_channel1(fbi); 2335dda7945SStefano Babic 2345dda7945SStefano Babic memset(&sig_cfg, 0, sizeof(sig_cfg)); 2355dda7945SStefano Babic if (fbi->var.vmode & FB_VMODE_INTERLACED) { 2365dda7945SStefano Babic sig_cfg.interlaced = 1; 2375dda7945SStefano Babic out_pixel_fmt = IPU_PIX_FMT_YUV444; 2385dda7945SStefano Babic } else { 2395dda7945SStefano Babic if (mxc_fbi->ipu_di_pix_fmt) 2405dda7945SStefano Babic out_pixel_fmt = mxc_fbi->ipu_di_pix_fmt; 2415dda7945SStefano Babic else 2425dda7945SStefano Babic out_pixel_fmt = IPU_PIX_FMT_RGB666; 2435dda7945SStefano Babic } 2445dda7945SStefano Babic if (fbi->var.vmode & FB_VMODE_ODD_FLD_FIRST) /* PAL */ 2455dda7945SStefano Babic sig_cfg.odd_field_first = 1; 2465dda7945SStefano Babic if ((fbi->var.sync & FB_SYNC_EXT) || ext_clk_used) 2475dda7945SStefano Babic sig_cfg.ext_clk = 1; 2485dda7945SStefano Babic if (fbi->var.sync & FB_SYNC_HOR_HIGH_ACT) 2495dda7945SStefano Babic sig_cfg.Hsync_pol = 1; 2505dda7945SStefano Babic if (fbi->var.sync & FB_SYNC_VERT_HIGH_ACT) 2515dda7945SStefano Babic sig_cfg.Vsync_pol = 1; 2525dda7945SStefano Babic if (!(fbi->var.sync & FB_SYNC_CLK_LAT_FALL)) 2535dda7945SStefano Babic sig_cfg.clk_pol = 1; 2545dda7945SStefano Babic if (fbi->var.sync & FB_SYNC_DATA_INVERT) 2555dda7945SStefano Babic sig_cfg.data_pol = 1; 2565dda7945SStefano Babic if (!(fbi->var.sync & FB_SYNC_OE_LOW_ACT)) 2575dda7945SStefano Babic sig_cfg.enable_pol = 1; 2585dda7945SStefano Babic if (fbi->var.sync & FB_SYNC_CLK_IDLE_EN) 2595dda7945SStefano Babic sig_cfg.clkidle_en = 1; 2605dda7945SStefano Babic 261c1420328SJeroen Hofstee debug("pixclock = %lu Hz\n", PICOS2KHZ(fbi->var.pixclock) * 1000UL); 2625dda7945SStefano Babic 2635dda7945SStefano Babic if (ipu_init_sync_panel(mxc_fbi->ipu_di, 2645dda7945SStefano Babic (PICOS2KHZ(fbi->var.pixclock)) * 1000UL, 2655dda7945SStefano Babic fbi->var.xres, fbi->var.yres, 2665dda7945SStefano Babic out_pixel_fmt, 2675dda7945SStefano Babic fbi->var.left_margin, 2685dda7945SStefano Babic fbi->var.hsync_len, 2695dda7945SStefano Babic fbi->var.right_margin, 2705dda7945SStefano Babic fbi->var.upper_margin, 2715dda7945SStefano Babic fbi->var.vsync_len, 2725dda7945SStefano Babic fbi->var.lower_margin, 2735dda7945SStefano Babic 0, sig_cfg) != 0) { 2745dda7945SStefano Babic puts("mxcfb: Error initializing panel.\n"); 2755dda7945SStefano Babic return -EINVAL; 2765dda7945SStefano Babic } 2775dda7945SStefano Babic 2785dda7945SStefano Babic retval = setup_disp_channel2(fbi); 2795dda7945SStefano Babic if (retval) 2805dda7945SStefano Babic return retval; 2815dda7945SStefano Babic 2825dda7945SStefano Babic if (mxc_fbi->blank == FB_BLANK_UNBLANK) 2835dda7945SStefano Babic ipu_enable_channel(mxc_fbi->ipu_ch); 2845dda7945SStefano Babic 2855dda7945SStefano Babic return retval; 2865dda7945SStefano Babic } 2875dda7945SStefano Babic 2885dda7945SStefano Babic /* 2895dda7945SStefano Babic * Check framebuffer variable parameters and adjust to valid values. 2905dda7945SStefano Babic * 2915dda7945SStefano Babic * @param var framebuffer variable parameters 2925dda7945SStefano Babic * 2935dda7945SStefano Babic * @param info framebuffer information pointer 2945dda7945SStefano Babic */ 2955dda7945SStefano Babic static int mxcfb_check_var(struct fb_var_screeninfo *var, struct fb_info *info) 2965dda7945SStefano Babic { 2975dda7945SStefano Babic u32 vtotal; 2985dda7945SStefano Babic u32 htotal; 2995dda7945SStefano Babic 3005dda7945SStefano Babic if (var->xres_virtual < var->xres) 3015dda7945SStefano Babic var->xres_virtual = var->xres; 3025dda7945SStefano Babic if (var->yres_virtual < var->yres) 3035dda7945SStefano Babic var->yres_virtual = var->yres; 3045dda7945SStefano Babic 3055dda7945SStefano Babic if ((var->bits_per_pixel != 32) && (var->bits_per_pixel != 24) && 3065dda7945SStefano Babic (var->bits_per_pixel != 16) && (var->bits_per_pixel != 8)) 3075dda7945SStefano Babic var->bits_per_pixel = default_bpp; 3085dda7945SStefano Babic 3095dda7945SStefano Babic switch (var->bits_per_pixel) { 3105dda7945SStefano Babic case 8: 3115dda7945SStefano Babic var->red.length = 3; 3125dda7945SStefano Babic var->red.offset = 5; 3135dda7945SStefano Babic var->red.msb_right = 0; 3145dda7945SStefano Babic 3155dda7945SStefano Babic var->green.length = 3; 3165dda7945SStefano Babic var->green.offset = 2; 3175dda7945SStefano Babic var->green.msb_right = 0; 3185dda7945SStefano Babic 3195dda7945SStefano Babic var->blue.length = 2; 3205dda7945SStefano Babic var->blue.offset = 0; 3215dda7945SStefano Babic var->blue.msb_right = 0; 3225dda7945SStefano Babic 3235dda7945SStefano Babic var->transp.length = 0; 3245dda7945SStefano Babic var->transp.offset = 0; 3255dda7945SStefano Babic var->transp.msb_right = 0; 3265dda7945SStefano Babic break; 3275dda7945SStefano Babic case 16: 3285dda7945SStefano Babic var->red.length = 5; 3295dda7945SStefano Babic var->red.offset = 11; 3305dda7945SStefano Babic var->red.msb_right = 0; 3315dda7945SStefano Babic 3325dda7945SStefano Babic var->green.length = 6; 3335dda7945SStefano Babic var->green.offset = 5; 3345dda7945SStefano Babic var->green.msb_right = 0; 3355dda7945SStefano Babic 3365dda7945SStefano Babic var->blue.length = 5; 3375dda7945SStefano Babic var->blue.offset = 0; 3385dda7945SStefano Babic var->blue.msb_right = 0; 3395dda7945SStefano Babic 3405dda7945SStefano Babic var->transp.length = 0; 3415dda7945SStefano Babic var->transp.offset = 0; 3425dda7945SStefano Babic var->transp.msb_right = 0; 3435dda7945SStefano Babic break; 3445dda7945SStefano Babic case 24: 3455dda7945SStefano Babic var->red.length = 8; 3465dda7945SStefano Babic var->red.offset = 16; 3475dda7945SStefano Babic var->red.msb_right = 0; 3485dda7945SStefano Babic 3495dda7945SStefano Babic var->green.length = 8; 3505dda7945SStefano Babic var->green.offset = 8; 3515dda7945SStefano Babic var->green.msb_right = 0; 3525dda7945SStefano Babic 3535dda7945SStefano Babic var->blue.length = 8; 3545dda7945SStefano Babic var->blue.offset = 0; 3555dda7945SStefano Babic var->blue.msb_right = 0; 3565dda7945SStefano Babic 3575dda7945SStefano Babic var->transp.length = 0; 3585dda7945SStefano Babic var->transp.offset = 0; 3595dda7945SStefano Babic var->transp.msb_right = 0; 3605dda7945SStefano Babic break; 3615dda7945SStefano Babic case 32: 3625dda7945SStefano Babic var->red.length = 8; 3635dda7945SStefano Babic var->red.offset = 16; 3645dda7945SStefano Babic var->red.msb_right = 0; 3655dda7945SStefano Babic 3665dda7945SStefano Babic var->green.length = 8; 3675dda7945SStefano Babic var->green.offset = 8; 3685dda7945SStefano Babic var->green.msb_right = 0; 3695dda7945SStefano Babic 3705dda7945SStefano Babic var->blue.length = 8; 3715dda7945SStefano Babic var->blue.offset = 0; 3725dda7945SStefano Babic var->blue.msb_right = 0; 3735dda7945SStefano Babic 3745dda7945SStefano Babic var->transp.length = 8; 3755dda7945SStefano Babic var->transp.offset = 24; 3765dda7945SStefano Babic var->transp.msb_right = 0; 3775dda7945SStefano Babic break; 3785dda7945SStefano Babic } 3795dda7945SStefano Babic 3805dda7945SStefano Babic if (var->pixclock < 1000) { 3815dda7945SStefano Babic htotal = var->xres + var->right_margin + var->hsync_len + 3825dda7945SStefano Babic var->left_margin; 3835dda7945SStefano Babic vtotal = var->yres + var->lower_margin + var->vsync_len + 3845dda7945SStefano Babic var->upper_margin; 3855dda7945SStefano Babic var->pixclock = (vtotal * htotal * 6UL) / 100UL; 3865dda7945SStefano Babic var->pixclock = KHZ2PICOS(var->pixclock); 3875dda7945SStefano Babic printf("pixclock set for 60Hz refresh = %u ps\n", 3885dda7945SStefano Babic var->pixclock); 3895dda7945SStefano Babic } 3905dda7945SStefano Babic 3915dda7945SStefano Babic var->height = -1; 3925dda7945SStefano Babic var->width = -1; 3935dda7945SStefano Babic var->grayscale = 0; 3945dda7945SStefano Babic 3955dda7945SStefano Babic return 0; 3965dda7945SStefano Babic } 3975dda7945SStefano Babic 3985dda7945SStefano Babic static int mxcfb_map_video_memory(struct fb_info *fbi) 3995dda7945SStefano Babic { 4005dda7945SStefano Babic if (fbi->fix.smem_len < fbi->var.yres_virtual * fbi->fix.line_length) { 4015dda7945SStefano Babic fbi->fix.smem_len = fbi->var.yres_virtual * 4025dda7945SStefano Babic fbi->fix.line_length; 4035dda7945SStefano Babic } 4044acb4d39SEric Nelson fbi->fix.smem_len = roundup(fbi->fix.smem_len, ARCH_DMA_MINALIGN); 4054acb4d39SEric Nelson fbi->screen_base = (char *)memalign(ARCH_DMA_MINALIGN, 4064acb4d39SEric Nelson fbi->fix.smem_len); 407e9934f0bSStefano Babic fbi->fix.smem_start = (unsigned long)fbi->screen_base; 4085dda7945SStefano Babic if (fbi->screen_base == 0) { 4095dda7945SStefano Babic puts("Unable to allocate framebuffer memory\n"); 4105dda7945SStefano Babic fbi->fix.smem_len = 0; 4115dda7945SStefano Babic fbi->fix.smem_start = 0; 4125dda7945SStefano Babic return -EBUSY; 4135dda7945SStefano Babic } 4145dda7945SStefano Babic 4155dda7945SStefano Babic debug("allocated fb @ paddr=0x%08X, size=%d.\n", 4165dda7945SStefano Babic (uint32_t) fbi->fix.smem_start, fbi->fix.smem_len); 4175dda7945SStefano Babic 4185dda7945SStefano Babic fbi->screen_size = fbi->fix.smem_len; 4195dda7945SStefano Babic 420a69214dcSEric Nelson gd->fb_base = fbi->fix.smem_start; 421a69214dcSEric Nelson 4225dda7945SStefano Babic /* Clear the screen */ 4235dda7945SStefano Babic memset((char *)fbi->screen_base, 0, fbi->fix.smem_len); 4245dda7945SStefano Babic 4255dda7945SStefano Babic return 0; 4265dda7945SStefano Babic } 4275dda7945SStefano Babic 4285dda7945SStefano Babic static int mxcfb_unmap_video_memory(struct fb_info *fbi) 4295dda7945SStefano Babic { 4305dda7945SStefano Babic fbi->screen_base = 0; 4315dda7945SStefano Babic fbi->fix.smem_start = 0; 4325dda7945SStefano Babic fbi->fix.smem_len = 0; 4335dda7945SStefano Babic return 0; 4345dda7945SStefano Babic } 4355dda7945SStefano Babic 4365dda7945SStefano Babic /* 4375dda7945SStefano Babic * Initializes the framebuffer information pointer. After allocating 4385dda7945SStefano Babic * sufficient memory for the framebuffer structure, the fields are 4395dda7945SStefano Babic * filled with custom information passed in from the configurable 4405dda7945SStefano Babic * structures. This includes information such as bits per pixel, 4415dda7945SStefano Babic * color maps, screen width/height and RGBA offsets. 4425dda7945SStefano Babic * 4435dda7945SStefano Babic * @return Framebuffer structure initialized with our information 4445dda7945SStefano Babic */ 4455dda7945SStefano Babic static struct fb_info *mxcfb_init_fbinfo(void) 4465dda7945SStefano Babic { 4475dda7945SStefano Babic #define BYTES_PER_LONG 4 4485dda7945SStefano Babic #define PADDING (BYTES_PER_LONG - (sizeof(struct fb_info) % BYTES_PER_LONG)) 4495dda7945SStefano Babic struct fb_info *fbi; 4505dda7945SStefano Babic struct mxcfb_info *mxcfbi; 4515dda7945SStefano Babic char *p; 4525dda7945SStefano Babic int size = sizeof(struct mxcfb_info) + PADDING + 4535dda7945SStefano Babic sizeof(struct fb_info); 4545dda7945SStefano Babic 4555dda7945SStefano Babic debug("%s: %d %d %d %d\n", 4565dda7945SStefano Babic __func__, 4575dda7945SStefano Babic PADDING, 4585dda7945SStefano Babic size, 4595dda7945SStefano Babic sizeof(struct mxcfb_info), 4605dda7945SStefano Babic sizeof(struct fb_info)); 4615dda7945SStefano Babic /* 4625dda7945SStefano Babic * Allocate sufficient memory for the fb structure 4635dda7945SStefano Babic */ 4645dda7945SStefano Babic 4655dda7945SStefano Babic p = malloc(size); 4665dda7945SStefano Babic if (!p) 4675dda7945SStefano Babic return NULL; 4685dda7945SStefano Babic 4695dda7945SStefano Babic memset(p, 0, size); 4705dda7945SStefano Babic 4715dda7945SStefano Babic fbi = (struct fb_info *)p; 4725dda7945SStefano Babic fbi->par = p + sizeof(struct fb_info) + PADDING; 4735dda7945SStefano Babic 4745dda7945SStefano Babic mxcfbi = (struct mxcfb_info *)fbi->par; 4755dda7945SStefano Babic debug("Framebuffer structures at: fbi=0x%x mxcfbi=0x%x\n", 4765dda7945SStefano Babic (unsigned int)fbi, (unsigned int)mxcfbi); 4775dda7945SStefano Babic 4785dda7945SStefano Babic fbi->var.activate = FB_ACTIVATE_NOW; 4795dda7945SStefano Babic 4805dda7945SStefano Babic fbi->flags = FBINFO_FLAG_DEFAULT; 4815dda7945SStefano Babic fbi->pseudo_palette = mxcfbi->pseudo_palette; 4825dda7945SStefano Babic 4835dda7945SStefano Babic return fbi; 4845dda7945SStefano Babic } 4855dda7945SStefano Babic 4865dda7945SStefano Babic /* 4875dda7945SStefano Babic * Probe routine for the framebuffer driver. It is called during the 4885dda7945SStefano Babic * driver binding process. The following functions are performed in 4895dda7945SStefano Babic * this routine: Framebuffer initialization, Memory allocation and 4905dda7945SStefano Babic * mapping, Framebuffer registration, IPU initialization. 4915dda7945SStefano Babic * 4925dda7945SStefano Babic * @return Appropriate error code to the kernel common code 4935dda7945SStefano Babic */ 49402ae1a18SMarek Vasut static int mxcfb_probe(u32 interface_pix_fmt, uint8_t disp, 49509c8bb26SEric Nelson struct fb_videomode const *mode) 4965dda7945SStefano Babic { 4975dda7945SStefano Babic struct fb_info *fbi; 4985dda7945SStefano Babic struct mxcfb_info *mxcfbi; 4995dda7945SStefano Babic int ret = 0; 5005dda7945SStefano Babic 5015dda7945SStefano Babic /* 5025dda7945SStefano Babic * Initialize FB structures 5035dda7945SStefano Babic */ 5045dda7945SStefano Babic fbi = mxcfb_init_fbinfo(); 5055dda7945SStefano Babic if (!fbi) { 5065dda7945SStefano Babic ret = -ENOMEM; 5075dda7945SStefano Babic goto err0; 5085dda7945SStefano Babic } 5095dda7945SStefano Babic mxcfbi = (struct mxcfb_info *)fbi->par; 5105dda7945SStefano Babic 5115dda7945SStefano Babic if (!g_dp_in_use) { 5125dda7945SStefano Babic mxcfbi->ipu_ch = MEM_BG_SYNC; 5135dda7945SStefano Babic mxcfbi->blank = FB_BLANK_UNBLANK; 5145dda7945SStefano Babic } else { 5155dda7945SStefano Babic mxcfbi->ipu_ch = MEM_DC_SYNC; 5165dda7945SStefano Babic mxcfbi->blank = FB_BLANK_POWERDOWN; 5175dda7945SStefano Babic } 5185dda7945SStefano Babic 51902ae1a18SMarek Vasut mxcfbi->ipu_di = disp; 5205dda7945SStefano Babic 5215dda7945SStefano Babic ipu_disp_set_global_alpha(mxcfbi->ipu_ch, 1, 0x80); 5225dda7945SStefano Babic ipu_disp_set_color_key(mxcfbi->ipu_ch, 0, 0); 5235dda7945SStefano Babic strcpy(fbi->fix.id, "DISP3 BG"); 5245dda7945SStefano Babic 5255dda7945SStefano Babic g_dp_in_use = 1; 5265dda7945SStefano Babic 5275dda7945SStefano Babic mxcfb_info[mxcfbi->ipu_di] = fbi; 5285dda7945SStefano Babic 5295dda7945SStefano Babic /* Need dummy values until real panel is configured */ 5305dda7945SStefano Babic 5315dda7945SStefano Babic mxcfbi->ipu_di_pix_fmt = interface_pix_fmt; 5325dda7945SStefano Babic fb_videomode_to_var(&fbi->var, mode); 533e9934f0bSStefano Babic fbi->var.bits_per_pixel = 16; 534e9934f0bSStefano Babic fbi->fix.line_length = fbi->var.xres * (fbi->var.bits_per_pixel / 8); 535e9934f0bSStefano Babic fbi->fix.smem_len = fbi->var.yres_virtual * fbi->fix.line_length; 5365dda7945SStefano Babic 5375dda7945SStefano Babic mxcfb_check_var(&fbi->var, fbi); 5385dda7945SStefano Babic 5395dda7945SStefano Babic /* Default Y virtual size is 2x panel size */ 5405dda7945SStefano Babic fbi->var.yres_virtual = fbi->var.yres * 2; 5415dda7945SStefano Babic 5425dda7945SStefano Babic mxcfb_set_fix(fbi); 5435dda7945SStefano Babic 544c1420328SJeroen Hofstee /* allocate fb first */ 5455dda7945SStefano Babic if (mxcfb_map_video_memory(fbi) < 0) 5465dda7945SStefano Babic return -ENOMEM; 5475dda7945SStefano Babic 5485dda7945SStefano Babic mxcfb_set_par(fbi); 5495dda7945SStefano Babic 550e9934f0bSStefano Babic panel.winSizeX = mode->xres; 551e9934f0bSStefano Babic panel.winSizeY = mode->yres; 552e9934f0bSStefano Babic panel.plnSizeX = mode->xres; 553e9934f0bSStefano Babic panel.plnSizeY = mode->yres; 5545dda7945SStefano Babic 555e9934f0bSStefano Babic panel.frameAdrs = (u32)fbi->screen_base; 556e9934f0bSStefano Babic panel.memSize = fbi->screen_size; 5575dda7945SStefano Babic 558e9934f0bSStefano Babic panel.gdfBytesPP = 2; 559e9934f0bSStefano Babic panel.gdfIndex = GDF_16BIT_565RGB; 5605dda7945SStefano Babic 5615dda7945SStefano Babic ipu_dump_registers(); 5625dda7945SStefano Babic 5635dda7945SStefano Babic return 0; 5645dda7945SStefano Babic 5655dda7945SStefano Babic err0: 5665dda7945SStefano Babic return ret; 5675dda7945SStefano Babic } 5685dda7945SStefano Babic 5695f8e17ceSEric Nelson void ipuv3_fb_shutdown(void) 5705f8e17ceSEric Nelson { 5715f8e17ceSEric Nelson int i; 5725f8e17ceSEric Nelson struct ipu_stat *stat = (struct ipu_stat *)IPU_STAT; 5735f8e17ceSEric Nelson 5745f8e17ceSEric Nelson for (i = 0; i < ARRAY_SIZE(mxcfb_info); i++) { 5755f8e17ceSEric Nelson struct fb_info *fbi = mxcfb_info[i]; 5765f8e17ceSEric Nelson if (fbi) { 5775f8e17ceSEric Nelson struct mxcfb_info *mxc_fbi = fbi->par; 5785f8e17ceSEric Nelson ipu_disable_channel(mxc_fbi->ipu_ch); 5795f8e17ceSEric Nelson ipu_uninit_channel(mxc_fbi->ipu_ch); 5805f8e17ceSEric Nelson } 5815f8e17ceSEric Nelson } 5825f8e17ceSEric Nelson for (i = 0; i < ARRAY_SIZE(stat->int_stat); i++) { 5835f8e17ceSEric Nelson __raw_writel(__raw_readl(&stat->int_stat[i]), 5845f8e17ceSEric Nelson &stat->int_stat[i]); 5855f8e17ceSEric Nelson } 5865f8e17ceSEric Nelson } 5875f8e17ceSEric Nelson 588e9934f0bSStefano Babic void *video_hw_init(void) 5895dda7945SStefano Babic { 5905dda7945SStefano Babic int ret; 5915dda7945SStefano Babic 5925dda7945SStefano Babic ret = ipu_probe(); 5935dda7945SStefano Babic if (ret) 5945dda7945SStefano Babic puts("Error initializing IPU\n"); 5955dda7945SStefano Babic 59602ae1a18SMarek Vasut ret = mxcfb_probe(gpixfmt, gdisp, gmode); 597e9934f0bSStefano Babic debug("Framebuffer at 0x%x\n", (unsigned int)panel.frameAdrs); 5985dda7945SStefano Babic 599e9934f0bSStefano Babic return (void *)&panel; 600e9934f0bSStefano Babic } 6015dda7945SStefano Babic 602e9934f0bSStefano Babic void video_set_lut(unsigned int index, /* color number */ 603e9934f0bSStefano Babic unsigned char r, /* red */ 604e9934f0bSStefano Babic unsigned char g, /* green */ 605e9934f0bSStefano Babic unsigned char b /* blue */ 606e9934f0bSStefano Babic ) 607e9934f0bSStefano Babic { 608e9934f0bSStefano Babic return; 609e9934f0bSStefano Babic } 610e9934f0bSStefano Babic 61109c8bb26SEric Nelson int ipuv3_fb_init(struct fb_videomode const *mode, 61209c8bb26SEric Nelson uint8_t disp, 61309c8bb26SEric Nelson uint32_t pixfmt) 614e9934f0bSStefano Babic { 615e9934f0bSStefano Babic gmode = mode; 61602ae1a18SMarek Vasut gdisp = disp; 61702ae1a18SMarek Vasut gpixfmt = pixfmt; 618e9934f0bSStefano Babic 619e9934f0bSStefano Babic return 0; 6205dda7945SStefano Babic } 621