// SPDX-License-Identifier: GPL-2.0+ /* * (C) Copyright 2007 * DENX Software Engineering, Anatolij Gustschin, agust@denx.de */ /* * mb862xx.c - Graphic interface for Fujitsu CoralP/Lime * PCI and video mode code was derived from smiLynxEM driver. */ #include <common.h> #include <asm/io.h> #include <pci.h> #include <video_fb.h> #include "videomodes.h" #include <mb862xx.h> #if defined(CONFIG_POST) #include <post.h> #endif /* * Graphic Device */ GraphicDevice mb862xx; /* * 32MB external RAM - 256K Chip MMIO = 0x1FC0000 ; */ #define VIDEO_MEM_SIZE 0x01FC0000 #if defined(CONFIG_PCI) #if defined(CONFIG_VIDEO_CORALP) static struct pci_device_id supported[] = { { PCI_VENDOR_ID_FUJITSU, PCI_DEVICE_ID_CORAL_P }, { PCI_VENDOR_ID_FUJITSU, PCI_DEVICE_ID_CORAL_PA }, { } }; /* Internal clock frequency divider table, index is mode number */ unsigned int fr_div[] = { 0x00000f00, 0x00000900, 0x00000500 }; #endif #endif #if defined(CONFIG_VIDEO_CORALP) #define rd_io in32r #define wr_io out32r #else #define rd_io(addr) in_be32((volatile unsigned *)(addr)) #define wr_io(addr, val) out_be32((volatile unsigned *)(addr), (val)) #endif #define HOST_RD_REG(off) rd_io((dev->frameAdrs + GC_HOST_BASE + (off))) #define HOST_WR_REG(off, val) wr_io((dev->frameAdrs + GC_HOST_BASE + (off)), \ (val)) #define DISP_RD_REG(off) rd_io((dev->frameAdrs + GC_DISP_BASE + (off))) #define DISP_WR_REG(off, val) wr_io((dev->frameAdrs + GC_DISP_BASE + (off)), \ (val)) #define DE_RD_REG(off) rd_io((dev->dprBase + (off))) #define DE_WR_REG(off, val) wr_io((dev->dprBase + (off)), (val)) #if defined(CONFIG_VIDEO_CORALP) #define DE_WR_FIFO(val) wr_io((dev->dprBase + (GC_GEO_FIFO)), (val)) #else #define DE_WR_FIFO(val) wr_io((dev->dprBase + (GC_FIFO)), (val)) #endif #define L0PAL_WR_REG(idx, val) wr_io((dev->frameAdrs + \ (GC_DISP_BASE | GC_L0PAL0) + \ ((idx) << 2)), (val)) #if defined(CONFIG_VIDEO_MB862xx_ACCEL) static void gdc_sw_reset (void) { GraphicDevice *dev = &mb862xx; HOST_WR_REG (GC_SRST, 0x1); udelay (500); video_hw_init (); } static void de_wait (void) { GraphicDevice *dev = &mb862xx; int lc = 0x10000; /* * Sync with software writes to framebuffer, * try to reset if engine locked */ while (DE_RD_REG (GC_CTR) & 0x00000131) if (lc-- < 0) { gdc_sw_reset (); puts ("gdc reset done after drawing engine lock.\n"); break; } } static void de_wait_slots (int slots) { GraphicDevice *dev = &mb862xx; int lc = 0x10000; /* Wait for free fifo slots */ while (DE_RD_REG (GC_IFCNT) < slots) if (lc-- < 0) { gdc_sw_reset (); puts ("gdc reset done after drawing engine lock.\n"); break; } } #endif #if !defined(CONFIG_VIDEO_CORALP) static void board_disp_init (void) { GraphicDevice *dev = &mb862xx; const gdc_regs *regs = board_get_regs (); while (regs->index) { DISP_WR_REG (regs->index, regs->value); regs++; } } #endif /* * Init drawing engine if accel enabled. * Also clears visible framebuffer. */ static void de_init (void) { GraphicDevice *dev = &mb862xx; #if defined(CONFIG_VIDEO_MB862xx_ACCEL) int cf = (dev->gdfBytesPP == 1) ? 0x0000 : 0x8000; dev->dprBase = dev->frameAdrs + GC_DRAW_BASE; /* Setup mode and fbbase, xres, fg, bg */ de_wait_slots (2); DE_WR_FIFO (0xf1010108); DE_WR_FIFO (cf | 0x0300); DE_WR_REG (GC_FBR, 0x0); DE_WR_REG (GC_XRES, dev->winSizeX); DE_WR_REG (GC_FC, 0x0); DE_WR_REG (GC_BC, 0x0); /* Reset clipping */ DE_WR_REG (GC_CXMIN, 0x0); DE_WR_REG (GC_CXMAX, dev->winSizeX); DE_WR_REG (GC_CYMIN, 0x0); DE_WR_REG (GC_CYMAX, dev->winSizeY); /* Clear framebuffer using drawing engine */ de_wait_slots (3); DE_WR_FIFO (0x09410000); DE_WR_FIFO (0x00000000); DE_WR_FIFO (dev->winSizeY << 16 | dev->winSizeX); /* sync with SW access to framebuffer */ de_wait (); #else unsigned int i, *p; i = dev->winSizeX * dev->winSizeY; p = (unsigned int *)dev->frameAdrs; while (i--) *p++ = 0; #endif } #if defined(CONFIG_VIDEO_CORALP) /* use CCF and MMR parameters for Coral-P Eval. Board as default */ #ifndef CONFIG_SYS_MB862xx_CCF #define CONFIG_SYS_MB862xx_CCF 0x00090000 #endif #ifndef CONFIG_SYS_MB862xx_MMR #define CONFIG_SYS_MB862xx_MMR 0x11d7fa13 #endif unsigned int pci_video_init (void) { GraphicDevice *dev = &mb862xx; pci_dev_t devbusfn; u16 device; if ((devbusfn = pci_find_devices (supported, 0)) < 0) { puts("controller not present\n"); return 0; } /* PCI setup */ pci_write_config_dword (devbusfn, PCI_COMMAND, (PCI_COMMAND_MEMORY | PCI_COMMAND_IO)); pci_read_config_dword (devbusfn, PCI_BASE_ADDRESS_0, &dev->frameAdrs); dev->frameAdrs = pci_mem_to_phys (devbusfn, dev->frameAdrs); if (dev->frameAdrs == 0) { puts ("PCI config: failed to get base address\n"); return 0; } dev->pciBase = dev->frameAdrs; puts("Coral-"); pci_read_config_word(devbusfn, PCI_DEVICE_ID, &device); switch (device) { case PCI_DEVICE_ID_CORAL_P: puts("P\n"); break; case PCI_DEVICE_ID_CORAL_PA: puts("PA\n"); break; default: puts("Unknown\n"); return 0; } /* Setup clocks and memory mode for Coral-P(A) */ HOST_WR_REG(GC_CCF, CONFIG_SYS_MB862xx_CCF); udelay (200); HOST_WR_REG(GC_MMR, CONFIG_SYS_MB862xx_MMR); udelay (100); return dev->frameAdrs; } unsigned int card_init (void) { GraphicDevice *dev = &mb862xx; unsigned int cf, videomode, div = 0; unsigned long t1, hsync, vsync; char *penv; int tmp, i, bpp; struct ctfb_res_modes *res_mode; struct ctfb_res_modes var_mode; memset (dev, 0, sizeof (GraphicDevice)); if (!pci_video_init ()) return 0; tmp = 0; videomode = 0x310; /* get video mode via environment */ penv = env_get("videomode"); if (penv) { /* decide if it is a string */ if (penv[0] <= '9') { videomode = (int) simple_strtoul (penv, NULL, 16); tmp = 1; } } else { tmp = 1; } if (tmp) { /* parameter are vesa modes, search params */ for (i = 0; i < VESA_MODES_COUNT; i++) { if (vesa_modes[i].vesanr == videomode) break; } if (i == VESA_MODES_COUNT) { printf ("\tno VESA Mode found, fallback to mode 0x%x\n", videomode); i = 0; } res_mode = (struct ctfb_res_modes *) &res_mode_init[vesa_modes[i].resindex]; if (vesa_modes[i].resindex > 2) { puts ("\tUnsupported resolution, using default\n"); bpp = vesa_modes[1].bits_per_pixel; div = fr_div[1]; } bpp = vesa_modes[i].bits_per_pixel; div = fr_div[vesa_modes[i].resindex]; } else { res_mode = (struct ctfb_res_modes *) &var_mode; bpp = video_get_params (res_mode, penv); } /* calculate hsync and vsync freq (info only) */ t1 = (res_mode->left_margin + res_mode->xres + res_mode->right_margin + res_mode->hsync_len) / 8; t1 *= 8; t1 *= res_mode->pixclock; t1 /= 1000; hsync = 1000000000L / t1; t1 *= (res_mode->upper_margin + res_mode->yres + res_mode->lower_margin + res_mode->vsync_len); t1 /= 1000; vsync = 1000000000L / t1; /* fill in Graphic device struct */ sprintf (dev->modeIdent, "%dx%dx%d %ldkHz %ldHz", res_mode->xres, res_mode->yres, bpp, (hsync / 1000), (vsync / 1000)); printf ("\t%s\n", dev->modeIdent); dev->winSizeX = res_mode->xres; dev->winSizeY = res_mode->yres; dev->memSize = VIDEO_MEM_SIZE; switch (bpp) { case 8: dev->gdfIndex = GDF__8BIT_INDEX; dev->gdfBytesPP = 1; break; case 15: case 16: dev->gdfIndex = GDF_15BIT_555RGB; dev->gdfBytesPP = 2; break; default: printf ("\t%d bpp configured, but only 8,15 and 16 supported\n", bpp); puts ("\tfallback to 15bpp\n"); dev->gdfIndex = GDF_15BIT_555RGB; dev->gdfBytesPP = 2; } /* Setup dot clock (internal pll, division rate) */ DISP_WR_REG (GC_DCM1, div); /* L0 init */ cf = (dev->gdfBytesPP == 1) ? 0x00000000 : 0x80000000; DISP_WR_REG (GC_L0M, ((dev->winSizeX * dev->gdfBytesPP) / 64) << 16 | (dev->winSizeY - 1) | cf); DISP_WR_REG (GC_L0OA0, 0x0); DISP_WR_REG (GC_L0DA0, 0x0); DISP_WR_REG (GC_L0DY_L0DX, 0x0); DISP_WR_REG (GC_L0EM, 0x0); DISP_WR_REG (GC_L0WY_L0WX, 0x0); DISP_WR_REG (GC_L0WH_L0WW, (dev->winSizeY - 1) << 16 | dev->winSizeX); /* Display timing init */ DISP_WR_REG (GC_HTP_A, (dev->winSizeX + res_mode->left_margin + res_mode->right_margin + res_mode->hsync_len - 1) << 16); DISP_WR_REG (GC_HDB_HDP_A, (dev->winSizeX - 1) << 16 | (dev->winSizeX - 1)); DISP_WR_REG (GC_VSW_HSW_HSP_A, (res_mode->vsync_len - 1) << 24 | (res_mode->hsync_len - 1) << 16 | (dev->winSizeX + res_mode->right_margin - 1)); DISP_WR_REG (GC_VTR_A, (dev->winSizeY + res_mode->lower_margin + res_mode->upper_margin + res_mode->vsync_len - 1) << 16); DISP_WR_REG (GC_VDP_VSP_A, (dev->winSizeY-1) << 16 | (dev->winSizeY + res_mode->lower_margin - 1)); DISP_WR_REG (GC_WY_WX, 0x0); DISP_WR_REG (GC_WH_WW, dev->winSizeY << 16 | dev->winSizeX); /* Display enable, L0 layer */ DISP_WR_REG (GC_DCM1, 0x80010000 | div); return dev->frameAdrs; } #endif #if !defined(CONFIG_VIDEO_CORALP) int mb862xx_probe(unsigned int addr) { GraphicDevice *dev = &mb862xx; unsigned int reg; dev->frameAdrs = addr; dev->dprBase = dev->frameAdrs + GC_DRAW_BASE; /* Try to access GDC ID/Revision registers */ reg = HOST_RD_REG (GC_CID); reg = HOST_RD_REG (GC_CID); if (reg == 0x303) { reg = DE_RD_REG(GC_REV); reg = DE_RD_REG(GC_REV); if ((reg & ~0xff) == 0x20050100) return MB862XX_TYPE_LIME; } return 0; } #endif void *video_hw_init (void) { GraphicDevice *dev = &mb862xx; puts ("Video: Fujitsu "); memset (dev, 0, sizeof (GraphicDevice)); #if defined(CONFIG_VIDEO_CORALP) if (card_init () == 0) return NULL; #else /* * Preliminary init of the onboard graphic controller, * retrieve base address */ if ((dev->frameAdrs = board_video_init ()) == 0) { puts ("Controller not found!\n"); return NULL; } else { puts ("Lime\n"); /* Set Change of Clock Frequency Register */ HOST_WR_REG (GC_CCF, CONFIG_SYS_MB862xx_CCF); /* Delay required */ udelay(300); /* Set Memory I/F Mode Register) */ HOST_WR_REG (GC_MMR, CONFIG_SYS_MB862xx_MMR); } #endif de_init (); #if !defined(CONFIG_VIDEO_CORALP) board_disp_init (); #endif #if (defined(CONFIG_LWMON5) || \ defined(CONFIG_SOCRATES)) && !(CONFIG_POST & CONFIG_SYS_POST_SYSMON) /* Lamp on */ board_backlight_switch (1); #endif return dev; } /* * Set a RGB color in the LUT */ void video_set_lut (unsigned int index, unsigned char r, unsigned char g, unsigned char b) { GraphicDevice *dev = &mb862xx; L0PAL_WR_REG (index, (r << 16) | (g << 8) | (b)); } #if defined(CONFIG_VIDEO_MB862xx_ACCEL) /* * Drawing engine Fill and BitBlt screen region */ void video_hw_rectfill (unsigned int bpp, unsigned int dst_x, unsigned int dst_y, unsigned int dim_x, unsigned int dim_y, unsigned int color) { GraphicDevice *dev = &mb862xx; de_wait_slots (3); DE_WR_REG (GC_FC, color); DE_WR_FIFO (0x09410000); DE_WR_FIFO ((dst_y << 16) | dst_x); DE_WR_FIFO ((dim_y << 16) | dim_x); de_wait (); } void video_hw_bitblt (unsigned int bpp, unsigned int src_x, unsigned int src_y, unsigned int dst_x, unsigned int dst_y, unsigned int width, unsigned int height) { GraphicDevice *dev = &mb862xx; unsigned int ctrl = 0x0d000000L; if (src_x >= dst_x && src_y >= dst_y) ctrl |= 0x00440000L; else if (src_x >= dst_x && src_y <= dst_y) ctrl |= 0x00460000L; else if (src_x <= dst_x && src_y >= dst_y) ctrl |= 0x00450000L; else ctrl |= 0x00470000L; de_wait_slots (4); DE_WR_FIFO (ctrl); DE_WR_FIFO ((src_y << 16) | src_x); DE_WR_FIFO ((dst_y << 16) | dst_x); DE_WR_FIFO ((height << 16) | width); de_wait (); /* sync */ } #endif