Tom Rini | 10e4779 | 2018-05-06 17:58:06 -0400 | [diff] [blame] | 1 | // SPDX-License-Identifier: GPL-2.0+ |
Stefano Babic | 42f151a | 2010-10-13 12:17:14 +0200 | [diff] [blame] | 2 | /* |
| 3 | * Porting to u-boot: |
| 4 | * |
| 5 | * (C) Copyright 2010 |
| 6 | * Stefano Babic, DENX Software Engineering, sbabic@denx.de |
| 7 | * |
| 8 | * MX51 Linux framebuffer: |
| 9 | * |
| 10 | * (C) Copyright 2004-2010 Freescale Semiconductor, Inc. |
Stefano Babic | 42f151a | 2010-10-13 12:17:14 +0200 | [diff] [blame] | 11 | */ |
| 12 | |
Stefano Babic | 42f151a | 2010-10-13 12:17:14 +0200 | [diff] [blame] | 13 | #include <common.h> |
Masahiro Yamada | 56a931c | 2016-09-21 11:28:55 +0900 | [diff] [blame] | 14 | #include <linux/errno.h> |
Eric Nelson | c9e2be6 | 2014-04-29 14:37:56 -0700 | [diff] [blame] | 15 | #include <asm/global_data.h> |
Stefano Babic | 42f151a | 2010-10-13 12:17:14 +0200 | [diff] [blame] | 16 | #include <linux/string.h> |
| 17 | #include <linux/list.h> |
| 18 | #include <linux/fb.h> |
| 19 | #include <asm/io.h> |
Anatolij Gustschin | 983e2f2a | 2019-03-18 23:29:31 +0100 | [diff] [blame] | 20 | #include <asm/mach-imx/video.h> |
Stefano Babic | 42f151a | 2010-10-13 12:17:14 +0200 | [diff] [blame] | 21 | #include <malloc.h> |
Stefano Babic | 6185244 | 2011-09-28 11:21:15 +0200 | [diff] [blame] | 22 | #include <video_fb.h> |
Anatolij Gustschin | 411e73d | 2019-03-18 23:29:32 +0100 | [diff] [blame] | 23 | #include "../videomodes.h" |
Stefano Babic | 42f151a | 2010-10-13 12:17:14 +0200 | [diff] [blame] | 24 | #include "ipu.h" |
| 25 | #include "mxcfb.h" |
Eric Nelson | 988ad42 | 2012-09-23 07:30:54 +0000 | [diff] [blame] | 26 | #include "ipu_regs.h" |
Stefano Babic | 42f151a | 2010-10-13 12:17:14 +0200 | [diff] [blame] | 27 | |
Anatolij Gustschin | 983e2f2a | 2019-03-18 23:29:31 +0100 | [diff] [blame] | 28 | #include <dm.h> |
| 29 | #include <video.h> |
| 30 | |
Eric Nelson | c9e2be6 | 2014-04-29 14:37:56 -0700 | [diff] [blame] | 31 | DECLARE_GLOBAL_DATA_PTR; |
| 32 | |
Stefano Babic | 42f151a | 2010-10-13 12:17:14 +0200 | [diff] [blame] | 33 | static int mxcfb_map_video_memory(struct fb_info *fbi); |
| 34 | static int mxcfb_unmap_video_memory(struct fb_info *fbi); |
| 35 | |
Stefano Babic | 6185244 | 2011-09-28 11:21:15 +0200 | [diff] [blame] | 36 | /* graphics setup */ |
| 37 | static GraphicDevice panel; |
Eric Nelson | 10a6cd1 | 2012-10-03 07:27:38 +0000 | [diff] [blame] | 38 | static struct fb_videomode const *gmode; |
Marek Vasut | ff5c108c | 2011-10-06 00:25:03 +0200 | [diff] [blame] | 39 | static uint8_t gdisp; |
| 40 | static uint32_t gpixfmt; |
Stefano Babic | 42f151a | 2010-10-13 12:17:14 +0200 | [diff] [blame] | 41 | |
Jeroen Hofstee | a175d30 | 2014-10-08 22:57:47 +0200 | [diff] [blame] | 42 | static void fb_videomode_to_var(struct fb_var_screeninfo *var, |
Stefano Babic | 42f151a | 2010-10-13 12:17:14 +0200 | [diff] [blame] | 43 | const struct fb_videomode *mode) |
| 44 | { |
| 45 | var->xres = mode->xres; |
| 46 | var->yres = mode->yres; |
| 47 | var->xres_virtual = mode->xres; |
| 48 | var->yres_virtual = mode->yres; |
| 49 | var->xoffset = 0; |
| 50 | var->yoffset = 0; |
| 51 | var->pixclock = mode->pixclock; |
| 52 | var->left_margin = mode->left_margin; |
| 53 | var->right_margin = mode->right_margin; |
| 54 | var->upper_margin = mode->upper_margin; |
| 55 | var->lower_margin = mode->lower_margin; |
| 56 | var->hsync_len = mode->hsync_len; |
| 57 | var->vsync_len = mode->vsync_len; |
| 58 | var->sync = mode->sync; |
| 59 | var->vmode = mode->vmode & FB_VMODE_MASK; |
| 60 | } |
| 61 | |
| 62 | /* |
| 63 | * Structure containing the MXC specific framebuffer information. |
| 64 | */ |
| 65 | struct mxcfb_info { |
| 66 | int blank; |
| 67 | ipu_channel_t ipu_ch; |
| 68 | int ipu_di; |
| 69 | u32 ipu_di_pix_fmt; |
| 70 | unsigned char overlay; |
| 71 | unsigned char alpha_chan_en; |
| 72 | dma_addr_t alpha_phy_addr0; |
| 73 | dma_addr_t alpha_phy_addr1; |
| 74 | void *alpha_virt_addr0; |
| 75 | void *alpha_virt_addr1; |
| 76 | uint32_t alpha_mem_len; |
| 77 | uint32_t cur_ipu_buf; |
| 78 | uint32_t cur_ipu_alpha_buf; |
| 79 | |
| 80 | u32 pseudo_palette[16]; |
| 81 | }; |
| 82 | |
| 83 | enum { |
| 84 | BOTH_ON, |
| 85 | SRC_ON, |
| 86 | TGT_ON, |
| 87 | BOTH_OFF |
| 88 | }; |
| 89 | |
| 90 | static unsigned long default_bpp = 16; |
| 91 | static unsigned char g_dp_in_use; |
| 92 | static struct fb_info *mxcfb_info[3]; |
| 93 | static int ext_clk_used; |
| 94 | |
| 95 | static uint32_t bpp_to_pixfmt(struct fb_info *fbi) |
| 96 | { |
| 97 | uint32_t pixfmt = 0; |
| 98 | |
| 99 | debug("bpp_to_pixfmt: %d\n", fbi->var.bits_per_pixel); |
| 100 | |
| 101 | if (fbi->var.nonstd) |
| 102 | return fbi->var.nonstd; |
| 103 | |
| 104 | switch (fbi->var.bits_per_pixel) { |
| 105 | case 24: |
| 106 | pixfmt = IPU_PIX_FMT_BGR24; |
| 107 | break; |
| 108 | case 32: |
| 109 | pixfmt = IPU_PIX_FMT_BGR32; |
| 110 | break; |
| 111 | case 16: |
| 112 | pixfmt = IPU_PIX_FMT_RGB565; |
| 113 | break; |
| 114 | } |
| 115 | return pixfmt; |
| 116 | } |
| 117 | |
| 118 | /* |
| 119 | * Set fixed framebuffer parameters based on variable settings. |
| 120 | * |
| 121 | * @param info framebuffer information pointer |
| 122 | */ |
| 123 | static int mxcfb_set_fix(struct fb_info *info) |
| 124 | { |
| 125 | struct fb_fix_screeninfo *fix = &info->fix; |
| 126 | struct fb_var_screeninfo *var = &info->var; |
| 127 | |
| 128 | fix->line_length = var->xres_virtual * var->bits_per_pixel / 8; |
| 129 | |
| 130 | fix->type = FB_TYPE_PACKED_PIXELS; |
| 131 | fix->accel = FB_ACCEL_NONE; |
| 132 | fix->visual = FB_VISUAL_TRUECOLOR; |
| 133 | fix->xpanstep = 1; |
| 134 | fix->ypanstep = 1; |
| 135 | |
| 136 | return 0; |
| 137 | } |
| 138 | |
| 139 | static int setup_disp_channel1(struct fb_info *fbi) |
| 140 | { |
| 141 | ipu_channel_params_t params; |
| 142 | struct mxcfb_info *mxc_fbi = (struct mxcfb_info *)fbi->par; |
| 143 | |
| 144 | memset(¶ms, 0, sizeof(params)); |
| 145 | params.mem_dp_bg_sync.di = mxc_fbi->ipu_di; |
| 146 | |
| 147 | debug("%s called\n", __func__); |
| 148 | /* |
| 149 | * Assuming interlaced means yuv output, below setting also |
| 150 | * valid for mem_dc_sync. FG should have the same vmode as BG. |
| 151 | */ |
| 152 | if (fbi->var.vmode & FB_VMODE_INTERLACED) { |
| 153 | params.mem_dp_bg_sync.interlaced = 1; |
| 154 | params.mem_dp_bg_sync.out_pixel_fmt = |
| 155 | IPU_PIX_FMT_YUV444; |
| 156 | } else { |
| 157 | if (mxc_fbi->ipu_di_pix_fmt) { |
| 158 | params.mem_dp_bg_sync.out_pixel_fmt = |
| 159 | mxc_fbi->ipu_di_pix_fmt; |
| 160 | } else { |
| 161 | params.mem_dp_bg_sync.out_pixel_fmt = |
| 162 | IPU_PIX_FMT_RGB666; |
| 163 | } |
| 164 | } |
| 165 | params.mem_dp_bg_sync.in_pixel_fmt = bpp_to_pixfmt(fbi); |
| 166 | if (mxc_fbi->alpha_chan_en) |
| 167 | params.mem_dp_bg_sync.alpha_chan_en = 1; |
| 168 | |
| 169 | ipu_init_channel(mxc_fbi->ipu_ch, ¶ms); |
| 170 | |
| 171 | return 0; |
| 172 | } |
| 173 | |
| 174 | static int setup_disp_channel2(struct fb_info *fbi) |
| 175 | { |
| 176 | int retval = 0; |
| 177 | struct mxcfb_info *mxc_fbi = (struct mxcfb_info *)fbi->par; |
| 178 | |
| 179 | mxc_fbi->cur_ipu_buf = 1; |
| 180 | if (mxc_fbi->alpha_chan_en) |
| 181 | mxc_fbi->cur_ipu_alpha_buf = 1; |
| 182 | |
| 183 | fbi->var.xoffset = fbi->var.yoffset = 0; |
| 184 | |
| 185 | debug("%s: %x %d %d %d %lx %lx\n", |
| 186 | __func__, |
| 187 | mxc_fbi->ipu_ch, |
| 188 | fbi->var.xres, |
| 189 | fbi->var.yres, |
| 190 | fbi->fix.line_length, |
| 191 | fbi->fix.smem_start, |
| 192 | fbi->fix.smem_start + |
| 193 | (fbi->fix.line_length * fbi->var.yres)); |
| 194 | |
| 195 | retval = ipu_init_channel_buffer(mxc_fbi->ipu_ch, IPU_INPUT_BUFFER, |
| 196 | bpp_to_pixfmt(fbi), |
| 197 | fbi->var.xres, fbi->var.yres, |
| 198 | fbi->fix.line_length, |
| 199 | fbi->fix.smem_start + |
| 200 | (fbi->fix.line_length * fbi->var.yres), |
| 201 | fbi->fix.smem_start, |
| 202 | 0, 0); |
| 203 | if (retval) |
| 204 | printf("ipu_init_channel_buffer error %d\n", retval); |
| 205 | |
| 206 | return retval; |
| 207 | } |
| 208 | |
| 209 | /* |
| 210 | * Set framebuffer parameters and change the operating mode. |
| 211 | * |
| 212 | * @param info framebuffer information pointer |
| 213 | */ |
| 214 | static int mxcfb_set_par(struct fb_info *fbi) |
| 215 | { |
| 216 | int retval = 0; |
| 217 | u32 mem_len; |
| 218 | ipu_di_signal_cfg_t sig_cfg; |
| 219 | struct mxcfb_info *mxc_fbi = (struct mxcfb_info *)fbi->par; |
| 220 | uint32_t out_pixel_fmt; |
| 221 | |
| 222 | ipu_disable_channel(mxc_fbi->ipu_ch); |
| 223 | ipu_uninit_channel(mxc_fbi->ipu_ch); |
| 224 | mxcfb_set_fix(fbi); |
| 225 | |
| 226 | mem_len = fbi->var.yres_virtual * fbi->fix.line_length; |
| 227 | if (!fbi->fix.smem_start || (mem_len > fbi->fix.smem_len)) { |
| 228 | if (fbi->fix.smem_start) |
| 229 | mxcfb_unmap_video_memory(fbi); |
| 230 | |
| 231 | if (mxcfb_map_video_memory(fbi) < 0) |
| 232 | return -ENOMEM; |
| 233 | } |
| 234 | |
| 235 | setup_disp_channel1(fbi); |
| 236 | |
| 237 | memset(&sig_cfg, 0, sizeof(sig_cfg)); |
| 238 | if (fbi->var.vmode & FB_VMODE_INTERLACED) { |
| 239 | sig_cfg.interlaced = 1; |
| 240 | out_pixel_fmt = IPU_PIX_FMT_YUV444; |
| 241 | } else { |
| 242 | if (mxc_fbi->ipu_di_pix_fmt) |
| 243 | out_pixel_fmt = mxc_fbi->ipu_di_pix_fmt; |
| 244 | else |
| 245 | out_pixel_fmt = IPU_PIX_FMT_RGB666; |
| 246 | } |
| 247 | if (fbi->var.vmode & FB_VMODE_ODD_FLD_FIRST) /* PAL */ |
| 248 | sig_cfg.odd_field_first = 1; |
| 249 | if ((fbi->var.sync & FB_SYNC_EXT) || ext_clk_used) |
| 250 | sig_cfg.ext_clk = 1; |
| 251 | if (fbi->var.sync & FB_SYNC_HOR_HIGH_ACT) |
| 252 | sig_cfg.Hsync_pol = 1; |
| 253 | if (fbi->var.sync & FB_SYNC_VERT_HIGH_ACT) |
| 254 | sig_cfg.Vsync_pol = 1; |
| 255 | if (!(fbi->var.sync & FB_SYNC_CLK_LAT_FALL)) |
| 256 | sig_cfg.clk_pol = 1; |
| 257 | if (fbi->var.sync & FB_SYNC_DATA_INVERT) |
| 258 | sig_cfg.data_pol = 1; |
| 259 | if (!(fbi->var.sync & FB_SYNC_OE_LOW_ACT)) |
| 260 | sig_cfg.enable_pol = 1; |
| 261 | if (fbi->var.sync & FB_SYNC_CLK_IDLE_EN) |
| 262 | sig_cfg.clkidle_en = 1; |
| 263 | |
Jeroen Hofstee | 9827621 | 2014-10-14 20:37:14 +0200 | [diff] [blame] | 264 | debug("pixclock = %lu Hz\n", PICOS2KHZ(fbi->var.pixclock) * 1000UL); |
Stefano Babic | 42f151a | 2010-10-13 12:17:14 +0200 | [diff] [blame] | 265 | |
| 266 | if (ipu_init_sync_panel(mxc_fbi->ipu_di, |
| 267 | (PICOS2KHZ(fbi->var.pixclock)) * 1000UL, |
| 268 | fbi->var.xres, fbi->var.yres, |
| 269 | out_pixel_fmt, |
| 270 | fbi->var.left_margin, |
| 271 | fbi->var.hsync_len, |
| 272 | fbi->var.right_margin, |
| 273 | fbi->var.upper_margin, |
| 274 | fbi->var.vsync_len, |
| 275 | fbi->var.lower_margin, |
| 276 | 0, sig_cfg) != 0) { |
| 277 | puts("mxcfb: Error initializing panel.\n"); |
| 278 | return -EINVAL; |
| 279 | } |
| 280 | |
| 281 | retval = setup_disp_channel2(fbi); |
| 282 | if (retval) |
| 283 | return retval; |
| 284 | |
| 285 | if (mxc_fbi->blank == FB_BLANK_UNBLANK) |
| 286 | ipu_enable_channel(mxc_fbi->ipu_ch); |
| 287 | |
| 288 | return retval; |
| 289 | } |
| 290 | |
| 291 | /* |
| 292 | * Check framebuffer variable parameters and adjust to valid values. |
| 293 | * |
| 294 | * @param var framebuffer variable parameters |
| 295 | * |
| 296 | * @param info framebuffer information pointer |
| 297 | */ |
| 298 | static int mxcfb_check_var(struct fb_var_screeninfo *var, struct fb_info *info) |
| 299 | { |
| 300 | u32 vtotal; |
| 301 | u32 htotal; |
| 302 | |
| 303 | if (var->xres_virtual < var->xres) |
| 304 | var->xres_virtual = var->xres; |
| 305 | if (var->yres_virtual < var->yres) |
| 306 | var->yres_virtual = var->yres; |
| 307 | |
| 308 | if ((var->bits_per_pixel != 32) && (var->bits_per_pixel != 24) && |
| 309 | (var->bits_per_pixel != 16) && (var->bits_per_pixel != 8)) |
| 310 | var->bits_per_pixel = default_bpp; |
| 311 | |
| 312 | switch (var->bits_per_pixel) { |
| 313 | case 8: |
| 314 | var->red.length = 3; |
| 315 | var->red.offset = 5; |
| 316 | var->red.msb_right = 0; |
| 317 | |
| 318 | var->green.length = 3; |
| 319 | var->green.offset = 2; |
| 320 | var->green.msb_right = 0; |
| 321 | |
| 322 | var->blue.length = 2; |
| 323 | var->blue.offset = 0; |
| 324 | var->blue.msb_right = 0; |
| 325 | |
| 326 | var->transp.length = 0; |
| 327 | var->transp.offset = 0; |
| 328 | var->transp.msb_right = 0; |
| 329 | break; |
| 330 | case 16: |
| 331 | var->red.length = 5; |
| 332 | var->red.offset = 11; |
| 333 | var->red.msb_right = 0; |
| 334 | |
| 335 | var->green.length = 6; |
| 336 | var->green.offset = 5; |
| 337 | var->green.msb_right = 0; |
| 338 | |
| 339 | var->blue.length = 5; |
| 340 | var->blue.offset = 0; |
| 341 | var->blue.msb_right = 0; |
| 342 | |
| 343 | var->transp.length = 0; |
| 344 | var->transp.offset = 0; |
| 345 | var->transp.msb_right = 0; |
| 346 | break; |
| 347 | case 24: |
| 348 | var->red.length = 8; |
| 349 | var->red.offset = 16; |
| 350 | var->red.msb_right = 0; |
| 351 | |
| 352 | var->green.length = 8; |
| 353 | var->green.offset = 8; |
| 354 | var->green.msb_right = 0; |
| 355 | |
| 356 | var->blue.length = 8; |
| 357 | var->blue.offset = 0; |
| 358 | var->blue.msb_right = 0; |
| 359 | |
| 360 | var->transp.length = 0; |
| 361 | var->transp.offset = 0; |
| 362 | var->transp.msb_right = 0; |
| 363 | break; |
| 364 | case 32: |
| 365 | var->red.length = 8; |
| 366 | var->red.offset = 16; |
| 367 | var->red.msb_right = 0; |
| 368 | |
| 369 | var->green.length = 8; |
| 370 | var->green.offset = 8; |
| 371 | var->green.msb_right = 0; |
| 372 | |
| 373 | var->blue.length = 8; |
| 374 | var->blue.offset = 0; |
| 375 | var->blue.msb_right = 0; |
| 376 | |
| 377 | var->transp.length = 8; |
| 378 | var->transp.offset = 24; |
| 379 | var->transp.msb_right = 0; |
| 380 | break; |
| 381 | } |
| 382 | |
| 383 | if (var->pixclock < 1000) { |
| 384 | htotal = var->xres + var->right_margin + var->hsync_len + |
| 385 | var->left_margin; |
| 386 | vtotal = var->yres + var->lower_margin + var->vsync_len + |
| 387 | var->upper_margin; |
| 388 | var->pixclock = (vtotal * htotal * 6UL) / 100UL; |
| 389 | var->pixclock = KHZ2PICOS(var->pixclock); |
| 390 | printf("pixclock set for 60Hz refresh = %u ps\n", |
| 391 | var->pixclock); |
| 392 | } |
| 393 | |
| 394 | var->height = -1; |
| 395 | var->width = -1; |
| 396 | var->grayscale = 0; |
| 397 | |
| 398 | return 0; |
| 399 | } |
| 400 | |
| 401 | static int mxcfb_map_video_memory(struct fb_info *fbi) |
| 402 | { |
| 403 | if (fbi->fix.smem_len < fbi->var.yres_virtual * fbi->fix.line_length) { |
| 404 | fbi->fix.smem_len = fbi->var.yres_virtual * |
| 405 | fbi->fix.line_length; |
| 406 | } |
Eric Nelson | fe6296f | 2013-07-26 17:53:45 -0700 | [diff] [blame] | 407 | fbi->fix.smem_len = roundup(fbi->fix.smem_len, ARCH_DMA_MINALIGN); |
Anatolij Gustschin | 983e2f2a | 2019-03-18 23:29:31 +0100 | [diff] [blame] | 408 | |
| 409 | #if CONFIG_IS_ENABLED(DM_VIDEO) |
| 410 | fbi->screen_base = (char *)gd->video_bottom; |
| 411 | #else |
Eric Nelson | fe6296f | 2013-07-26 17:53:45 -0700 | [diff] [blame] | 412 | fbi->screen_base = (char *)memalign(ARCH_DMA_MINALIGN, |
| 413 | fbi->fix.smem_len); |
Anatolij Gustschin | 983e2f2a | 2019-03-18 23:29:31 +0100 | [diff] [blame] | 414 | #endif |
| 415 | |
Stefano Babic | 6185244 | 2011-09-28 11:21:15 +0200 | [diff] [blame] | 416 | fbi->fix.smem_start = (unsigned long)fbi->screen_base; |
Stefano Babic | 42f151a | 2010-10-13 12:17:14 +0200 | [diff] [blame] | 417 | if (fbi->screen_base == 0) { |
| 418 | puts("Unable to allocate framebuffer memory\n"); |
| 419 | fbi->fix.smem_len = 0; |
| 420 | fbi->fix.smem_start = 0; |
| 421 | return -EBUSY; |
| 422 | } |
| 423 | |
| 424 | debug("allocated fb @ paddr=0x%08X, size=%d.\n", |
| 425 | (uint32_t) fbi->fix.smem_start, fbi->fix.smem_len); |
| 426 | |
| 427 | fbi->screen_size = fbi->fix.smem_len; |
| 428 | |
Anatolij Gustschin | 983e2f2a | 2019-03-18 23:29:31 +0100 | [diff] [blame] | 429 | #if CONFIG_IS_ENABLED(VIDEO) |
Eric Nelson | c9e2be6 | 2014-04-29 14:37:56 -0700 | [diff] [blame] | 430 | gd->fb_base = fbi->fix.smem_start; |
Anatolij Gustschin | 983e2f2a | 2019-03-18 23:29:31 +0100 | [diff] [blame] | 431 | #endif |
Eric Nelson | c9e2be6 | 2014-04-29 14:37:56 -0700 | [diff] [blame] | 432 | |
Stefano Babic | 42f151a | 2010-10-13 12:17:14 +0200 | [diff] [blame] | 433 | /* Clear the screen */ |
| 434 | memset((char *)fbi->screen_base, 0, fbi->fix.smem_len); |
| 435 | |
| 436 | return 0; |
| 437 | } |
| 438 | |
| 439 | static int mxcfb_unmap_video_memory(struct fb_info *fbi) |
| 440 | { |
| 441 | fbi->screen_base = 0; |
| 442 | fbi->fix.smem_start = 0; |
| 443 | fbi->fix.smem_len = 0; |
| 444 | return 0; |
| 445 | } |
| 446 | |
| 447 | /* |
| 448 | * Initializes the framebuffer information pointer. After allocating |
| 449 | * sufficient memory for the framebuffer structure, the fields are |
| 450 | * filled with custom information passed in from the configurable |
| 451 | * structures. This includes information such as bits per pixel, |
| 452 | * color maps, screen width/height and RGBA offsets. |
| 453 | * |
| 454 | * @return Framebuffer structure initialized with our information |
| 455 | */ |
| 456 | static struct fb_info *mxcfb_init_fbinfo(void) |
| 457 | { |
| 458 | #define BYTES_PER_LONG 4 |
| 459 | #define PADDING (BYTES_PER_LONG - (sizeof(struct fb_info) % BYTES_PER_LONG)) |
| 460 | struct fb_info *fbi; |
| 461 | struct mxcfb_info *mxcfbi; |
| 462 | char *p; |
| 463 | int size = sizeof(struct mxcfb_info) + PADDING + |
| 464 | sizeof(struct fb_info); |
| 465 | |
| 466 | debug("%s: %d %d %d %d\n", |
| 467 | __func__, |
| 468 | PADDING, |
| 469 | size, |
| 470 | sizeof(struct mxcfb_info), |
| 471 | sizeof(struct fb_info)); |
| 472 | /* |
| 473 | * Allocate sufficient memory for the fb structure |
| 474 | */ |
| 475 | |
| 476 | p = malloc(size); |
| 477 | if (!p) |
| 478 | return NULL; |
| 479 | |
| 480 | memset(p, 0, size); |
| 481 | |
| 482 | fbi = (struct fb_info *)p; |
| 483 | fbi->par = p + sizeof(struct fb_info) + PADDING; |
| 484 | |
| 485 | mxcfbi = (struct mxcfb_info *)fbi->par; |
| 486 | debug("Framebuffer structures at: fbi=0x%x mxcfbi=0x%x\n", |
| 487 | (unsigned int)fbi, (unsigned int)mxcfbi); |
| 488 | |
| 489 | fbi->var.activate = FB_ACTIVATE_NOW; |
| 490 | |
| 491 | fbi->flags = FBINFO_FLAG_DEFAULT; |
| 492 | fbi->pseudo_palette = mxcfbi->pseudo_palette; |
| 493 | |
| 494 | return fbi; |
| 495 | } |
| 496 | |
| 497 | /* |
| 498 | * Probe routine for the framebuffer driver. It is called during the |
Jeroen Hofstee | 9827621 | 2014-10-14 20:37:14 +0200 | [diff] [blame] | 499 | * driver binding process. The following functions are performed in |
Stefano Babic | 42f151a | 2010-10-13 12:17:14 +0200 | [diff] [blame] | 500 | * this routine: Framebuffer initialization, Memory allocation and |
| 501 | * mapping, Framebuffer registration, IPU initialization. |
| 502 | * |
| 503 | * @return Appropriate error code to the kernel common code |
| 504 | */ |
Marek Vasut | ff5c108c | 2011-10-06 00:25:03 +0200 | [diff] [blame] | 505 | static int mxcfb_probe(u32 interface_pix_fmt, uint8_t disp, |
Eric Nelson | 10a6cd1 | 2012-10-03 07:27:38 +0000 | [diff] [blame] | 506 | struct fb_videomode const *mode) |
Stefano Babic | 42f151a | 2010-10-13 12:17:14 +0200 | [diff] [blame] | 507 | { |
| 508 | struct fb_info *fbi; |
| 509 | struct mxcfb_info *mxcfbi; |
| 510 | int ret = 0; |
| 511 | |
| 512 | /* |
| 513 | * Initialize FB structures |
| 514 | */ |
| 515 | fbi = mxcfb_init_fbinfo(); |
| 516 | if (!fbi) { |
| 517 | ret = -ENOMEM; |
| 518 | goto err0; |
| 519 | } |
| 520 | mxcfbi = (struct mxcfb_info *)fbi->par; |
| 521 | |
| 522 | if (!g_dp_in_use) { |
| 523 | mxcfbi->ipu_ch = MEM_BG_SYNC; |
| 524 | mxcfbi->blank = FB_BLANK_UNBLANK; |
| 525 | } else { |
| 526 | mxcfbi->ipu_ch = MEM_DC_SYNC; |
| 527 | mxcfbi->blank = FB_BLANK_POWERDOWN; |
| 528 | } |
| 529 | |
Marek Vasut | ff5c108c | 2011-10-06 00:25:03 +0200 | [diff] [blame] | 530 | mxcfbi->ipu_di = disp; |
Stefano Babic | 42f151a | 2010-10-13 12:17:14 +0200 | [diff] [blame] | 531 | |
| 532 | ipu_disp_set_global_alpha(mxcfbi->ipu_ch, 1, 0x80); |
| 533 | ipu_disp_set_color_key(mxcfbi->ipu_ch, 0, 0); |
| 534 | strcpy(fbi->fix.id, "DISP3 BG"); |
| 535 | |
| 536 | g_dp_in_use = 1; |
| 537 | |
| 538 | mxcfb_info[mxcfbi->ipu_di] = fbi; |
| 539 | |
| 540 | /* Need dummy values until real panel is configured */ |
Stefano Babic | 42f151a | 2010-10-13 12:17:14 +0200 | [diff] [blame] | 541 | |
| 542 | mxcfbi->ipu_di_pix_fmt = interface_pix_fmt; |
| 543 | fb_videomode_to_var(&fbi->var, mode); |
Stefano Babic | 6185244 | 2011-09-28 11:21:15 +0200 | [diff] [blame] | 544 | fbi->var.bits_per_pixel = 16; |
| 545 | fbi->fix.line_length = fbi->var.xres * (fbi->var.bits_per_pixel / 8); |
| 546 | fbi->fix.smem_len = fbi->var.yres_virtual * fbi->fix.line_length; |
Stefano Babic | 42f151a | 2010-10-13 12:17:14 +0200 | [diff] [blame] | 547 | |
| 548 | mxcfb_check_var(&fbi->var, fbi); |
| 549 | |
| 550 | /* Default Y virtual size is 2x panel size */ |
| 551 | fbi->var.yres_virtual = fbi->var.yres * 2; |
| 552 | |
| 553 | mxcfb_set_fix(fbi); |
| 554 | |
Jeroen Hofstee | 9827621 | 2014-10-14 20:37:14 +0200 | [diff] [blame] | 555 | /* allocate fb first */ |
Stefano Babic | 42f151a | 2010-10-13 12:17:14 +0200 | [diff] [blame] | 556 | if (mxcfb_map_video_memory(fbi) < 0) |
| 557 | return -ENOMEM; |
| 558 | |
| 559 | mxcfb_set_par(fbi); |
| 560 | |
Stefano Babic | 6185244 | 2011-09-28 11:21:15 +0200 | [diff] [blame] | 561 | panel.winSizeX = mode->xres; |
| 562 | panel.winSizeY = mode->yres; |
| 563 | panel.plnSizeX = mode->xres; |
| 564 | panel.plnSizeY = mode->yres; |
Stefano Babic | 42f151a | 2010-10-13 12:17:14 +0200 | [diff] [blame] | 565 | |
Stefano Babic | 6185244 | 2011-09-28 11:21:15 +0200 | [diff] [blame] | 566 | panel.frameAdrs = (u32)fbi->screen_base; |
| 567 | panel.memSize = fbi->screen_size; |
Stefano Babic | 42f151a | 2010-10-13 12:17:14 +0200 | [diff] [blame] | 568 | |
Stefano Babic | 6185244 | 2011-09-28 11:21:15 +0200 | [diff] [blame] | 569 | panel.gdfBytesPP = 2; |
| 570 | panel.gdfIndex = GDF_16BIT_565RGB; |
Stefano Babic | 42f151a | 2010-10-13 12:17:14 +0200 | [diff] [blame] | 571 | |
| 572 | ipu_dump_registers(); |
| 573 | |
| 574 | return 0; |
| 575 | |
| 576 | err0: |
| 577 | return ret; |
| 578 | } |
| 579 | |
Eric Nelson | 988ad42 | 2012-09-23 07:30:54 +0000 | [diff] [blame] | 580 | void ipuv3_fb_shutdown(void) |
| 581 | { |
Anatolij Gustschin | fa4211c | 2017-08-25 15:10:43 +0200 | [diff] [blame] | 582 | int i; |
Tom Rini | 47dce76 | 2017-09-01 16:17:17 -0400 | [diff] [blame] | 583 | struct ipu_stat *stat = (struct ipu_stat *)IPU_STAT; |
Eric Nelson | 988ad42 | 2012-09-23 07:30:54 +0000 | [diff] [blame] | 584 | |
Anatolij Gustschin | 3e7ad7d | 2017-09-04 23:33:45 +0200 | [diff] [blame] | 585 | if (!ipu_clk_enabled()) |
| 586 | return; |
| 587 | |
Eric Nelson | 988ad42 | 2012-09-23 07:30:54 +0000 | [diff] [blame] | 588 | for (i = 0; i < ARRAY_SIZE(mxcfb_info); i++) { |
| 589 | struct fb_info *fbi = mxcfb_info[i]; |
| 590 | if (fbi) { |
| 591 | struct mxcfb_info *mxc_fbi = fbi->par; |
| 592 | ipu_disable_channel(mxc_fbi->ipu_ch); |
| 593 | ipu_uninit_channel(mxc_fbi->ipu_ch); |
| 594 | } |
| 595 | } |
| 596 | for (i = 0; i < ARRAY_SIZE(stat->int_stat); i++) { |
| 597 | __raw_writel(__raw_readl(&stat->int_stat[i]), |
| 598 | &stat->int_stat[i]); |
| 599 | } |
| 600 | } |
| 601 | |
Stefano Babic | 6185244 | 2011-09-28 11:21:15 +0200 | [diff] [blame] | 602 | void *video_hw_init(void) |
Stefano Babic | 42f151a | 2010-10-13 12:17:14 +0200 | [diff] [blame] | 603 | { |
| 604 | int ret; |
| 605 | |
| 606 | ret = ipu_probe(); |
| 607 | if (ret) |
| 608 | puts("Error initializing IPU\n"); |
| 609 | |
Marek Vasut | ff5c108c | 2011-10-06 00:25:03 +0200 | [diff] [blame] | 610 | ret = mxcfb_probe(gpixfmt, gdisp, gmode); |
Stefano Babic | 6185244 | 2011-09-28 11:21:15 +0200 | [diff] [blame] | 611 | debug("Framebuffer at 0x%x\n", (unsigned int)panel.frameAdrs); |
Stefano Babic | 42f151a | 2010-10-13 12:17:14 +0200 | [diff] [blame] | 612 | |
Stefano Babic | 6185244 | 2011-09-28 11:21:15 +0200 | [diff] [blame] | 613 | return (void *)&panel; |
| 614 | } |
Stefano Babic | 42f151a | 2010-10-13 12:17:14 +0200 | [diff] [blame] | 615 | |
Eric Nelson | 10a6cd1 | 2012-10-03 07:27:38 +0000 | [diff] [blame] | 616 | int ipuv3_fb_init(struct fb_videomode const *mode, |
| 617 | uint8_t disp, |
| 618 | uint32_t pixfmt) |
Stefano Babic | 6185244 | 2011-09-28 11:21:15 +0200 | [diff] [blame] | 619 | { |
| 620 | gmode = mode; |
Marek Vasut | ff5c108c | 2011-10-06 00:25:03 +0200 | [diff] [blame] | 621 | gdisp = disp; |
| 622 | gpixfmt = pixfmt; |
Stefano Babic | 6185244 | 2011-09-28 11:21:15 +0200 | [diff] [blame] | 623 | |
| 624 | return 0; |
Stefano Babic | 42f151a | 2010-10-13 12:17:14 +0200 | [diff] [blame] | 625 | } |
Anatolij Gustschin | 983e2f2a | 2019-03-18 23:29:31 +0100 | [diff] [blame] | 626 | |
| 627 | #if CONFIG_IS_ENABLED(DM_VIDEO) |
| 628 | enum { |
| 629 | /* Maximum display size we support */ |
| 630 | LCD_MAX_WIDTH = 1920, |
| 631 | LCD_MAX_HEIGHT = 1080, |
| 632 | LCD_MAX_LOG2_BPP = VIDEO_BPP16, |
| 633 | }; |
| 634 | |
| 635 | static int ipuv3_video_probe(struct udevice *dev) |
| 636 | { |
| 637 | struct video_uc_platdata *plat = dev_get_uclass_platdata(dev); |
| 638 | struct video_priv *uc_priv = dev_get_uclass_priv(dev); |
| 639 | u32 fb_start, fb_end; |
| 640 | int ret; |
| 641 | |
| 642 | debug("%s() plat: base 0x%lx, size 0x%x\n", |
| 643 | __func__, plat->base, plat->size); |
| 644 | |
| 645 | ret = ipu_probe(); |
| 646 | if (ret) |
| 647 | return ret; |
| 648 | |
| 649 | ret = ipu_displays_init(); |
| 650 | if (ret < 0) |
| 651 | return ret; |
| 652 | |
| 653 | ret = mxcfb_probe(gpixfmt, gdisp, gmode); |
| 654 | if (ret < 0) |
| 655 | return ret; |
| 656 | |
| 657 | uc_priv->xsize = gmode->xres; |
| 658 | uc_priv->ysize = gmode->yres; |
| 659 | uc_priv->bpix = LCD_MAX_LOG2_BPP; |
| 660 | |
| 661 | /* Enable dcache for the frame buffer */ |
| 662 | fb_start = plat->base & ~(MMU_SECTION_SIZE - 1); |
| 663 | fb_end = plat->base + plat->size; |
| 664 | fb_end = ALIGN(fb_end, 1 << MMU_SECTION_SHIFT); |
| 665 | mmu_set_region_dcache_behaviour(fb_start, fb_end - fb_start, |
| 666 | DCACHE_WRITEBACK); |
| 667 | video_set_flush_dcache(dev, true); |
| 668 | |
| 669 | return 0; |
| 670 | } |
| 671 | |
| 672 | struct ipuv3_video_priv { |
| 673 | ulong regs; |
| 674 | }; |
| 675 | |
| 676 | static int ipuv3_video_bind(struct udevice *dev) |
| 677 | { |
| 678 | struct video_uc_platdata *plat = dev_get_uclass_platdata(dev); |
| 679 | |
| 680 | plat->size = LCD_MAX_WIDTH * LCD_MAX_HEIGHT * |
Marek Vasut | 28bdd93 | 2019-05-06 01:11:32 +0200 | [diff] [blame] | 681 | (1 << VIDEO_BPP32) / 8; |
Anatolij Gustschin | 983e2f2a | 2019-03-18 23:29:31 +0100 | [diff] [blame] | 682 | |
| 683 | return 0; |
| 684 | } |
| 685 | |
| 686 | static const struct udevice_id ipuv3_video_ids[] = { |
| 687 | { .compatible = "fsl,imx6q-ipu" }, |
Steffen Dirkwinkel | 4e40f1a | 2019-04-17 13:57:15 +0200 | [diff] [blame] | 688 | { .compatible = "fsl,imx53-ipu" }, |
Anatolij Gustschin | 983e2f2a | 2019-03-18 23:29:31 +0100 | [diff] [blame] | 689 | { } |
| 690 | }; |
| 691 | |
| 692 | U_BOOT_DRIVER(ipuv3_video) = { |
| 693 | .name = "ipuv3_video", |
| 694 | .id = UCLASS_VIDEO, |
| 695 | .of_match = ipuv3_video_ids, |
| 696 | .bind = ipuv3_video_bind, |
| 697 | .probe = ipuv3_video_probe, |
| 698 | .priv_auto_alloc_size = sizeof(struct ipuv3_video_priv), |
| 699 | .flags = DM_FLAG_PRE_RELOC, |
| 700 | }; |
| 701 | #endif /* CONFIG_DM_VIDEO */ |