/*
- * Copyright 2007 Freescale Semiconductor, Inc.
- * York Sun <yorksun@freescale.com>
+ * Copyright 2007-2011 Freescale Semiconductor, Inc.
+ * Authors: York Sun <yorksun@freescale.com>
+ * Timur Tabi <timur@freescale.com>
*
* FSL DIU Framebuffer driver
*
- * 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; either version 2 of
- * the License, or (at your option) any later version.
- *
- * 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
+ * SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <command.h>
#include <asm/io.h>
-
-#ifdef CONFIG_FSL_DIU_FB
-
+#include <fsl_diu_fb.h>
#include "../common/pixis.h"
-#include "../common/fsl_diu_fb.h"
-#if defined(CONFIG_VIDEO) || defined(CONFIG_CFB_CONSOLE)
-#include <devices.h>
-#include <video_fb.h>
-#endif
+#define PX_BRDCFG0_DLINK 0x10
+#define PX_BRDCFG0_DVISEL 0x08
-extern unsigned int FSL_Logo_BMP[];
-
-static int xres, yres;
-
-
-void mpc8610hpcd_diu_init(void)
+void diu_set_pixel_clock(unsigned int pixclock)
{
- char *monitor_port;
- int gamma_fix;
- unsigned int pixel_format;
- unsigned char tmp_val;
- unsigned char pixis_arch;
-
- tmp_val = in8(PIXIS_BASE + PIXIS_BRDCFG0);
- pixis_arch = in8(PIXIS_BASE + PIXIS_VER);
-
- monitor_port = getenv("monitor");
- if (!strncmp(monitor_port, "0", 1)) { /* 0 - DVI */
- xres = 1280;
- yres = 1024;
- if (pixis_arch == 0x01)
- pixel_format = 0x88882317;
- else
- pixel_format = 0x88883316;
- gamma_fix = 0;
- out8(PIXIS_BASE + PIXIS_BRDCFG0, tmp_val | 0x08);
-
- } else if (!strncmp(monitor_port, "1", 1)) { /* 1 - Single link LVDS */
- xres = 1024;
- yres = 768;
- pixel_format = 0x88883316;
- gamma_fix = 0;
- out8(PIXIS_BASE + PIXIS_BRDCFG0, (tmp_val & 0xf7) | 0x10);
-
- } else if (!strncmp(monitor_port, "2", 1)) { /* 2 - Double link LVDS */
- xres = 1280;
- yres = 1024;
- pixel_format = 0x88883316;
- gamma_fix = 1;
- out8(PIXIS_BASE + PIXIS_BRDCFG0, tmp_val & 0xe7);
-
- } else { /* DVI */
- xres = 1280;
- yres = 1024;
- pixel_format = 0x88882317;
- gamma_fix = 0;
- out8(PIXIS_BASE + PIXIS_BRDCFG0, tmp_val | 0x08);
- }
-
- fsl_diu_init(xres, pixel_format, gamma_fix,
- (unsigned char *)FSL_Logo_BMP);
+ volatile immap_t *immap = (immap_t *)CONFIG_SYS_IMMR;
+ volatile ccsr_gur_t *gur = &immap->im_gur;
+ volatile unsigned int *guts_clkdvdr = &gur->clkdvdr;
+ unsigned long speed_ccb, temp, pixval;
+
+ speed_ccb = get_bus_freq(0);
+ temp = 1000000000/pixclock;
+ temp *= 1000;
+ pixval = speed_ccb / temp;
+ debug("DIU pixval = %lu\n", pixval);
+
+ /* Modify PXCLK in GUTS CLKDVDR */
+ debug("DIU: Current value of CLKDVDR = 0x%08x\n", *guts_clkdvdr);
+ temp = *guts_clkdvdr & 0x2000FFFF;
+ *guts_clkdvdr = temp; /* turn off clock */
+ *guts_clkdvdr = temp | 0x80000000 | ((pixval & 0x1F) << 16);
+ debug("DIU: Modified value of CLKDVDR = 0x%08x\n", *guts_clkdvdr);
}
-int mpc8610diu_init_show_bmp(cmd_tbl_t *cmdtp,
- int flag, int argc, char *argv[])
+int platform_diu_init(unsigned int xres, unsigned int yres, const char *port)
{
- unsigned int addr;
+ const char *name;
+ int gamma_fix = 0;
+ u32 pixel_format = 0x88883316;
+ u8 temp;
- if (argc < 2) {
- printf ("Usage:\n%s\n", cmdtp->usage);
- return 1;
- }
+ temp = in_8(&pixis->brdcfg0);
- if (!strncmp(argv[1],"init",4)) {
-#if defined(CONFIG_VIDEO) || defined(CONFIG_CFB_CONSOLE)
- fsl_diu_clear_screen();
- drv_video_init();
-#else
- mpc8610hpcd_diu_init();
-#endif
+ if (strncmp(port, "dlvds", 5) == 0) {
+ /* Dual link LVDS */
+ gamma_fix = 1;
+ temp &= ~(PX_BRDCFG0_DLINK | PX_BRDCFG0_DVISEL);
+ name = "Dual-Link LVDS";
+ } else if (strncmp(port, "lvds", 4) == 0) {
+ /* Single link LVDS */
+ temp = (temp & ~PX_BRDCFG0_DVISEL) | PX_BRDCFG0_DLINK;
+ name = "Single-Link LVDS";
} else {
- addr = simple_strtoul(argv[1], NULL, 16);
- fsl_diu_clear_screen();
- fsl_diu_display_bmp((unsigned char *)addr, 0, 0, 0);
+ /* DVI */
+ if (in_8(&pixis->ver) == 1) /* Board version */
+ pixel_format = 0x88882317;
+ temp |= PX_BRDCFG0_DVISEL;
+ name = "DVI";
}
- return 0;
-}
-
-U_BOOT_CMD(
- diufb, CFG_MAXARGS, 1, mpc8610diu_init_show_bmp,
- "diufb init | addr - Init or Display BMP file\n",
- "init\n - initialize DIU\n"
- "addr\n - display bmp at address 'addr'\n"
- );
-
-
-#if defined(CONFIG_VIDEO) || defined(CONFIG_CFB_CONSOLE)
-
-/*
- * The Graphic Device
- */
-GraphicDevice ctfb;
-void *video_hw_init(void)
-{
- GraphicDevice *pGD = (GraphicDevice *) &ctfb;
- struct fb_info *info;
-
- mpc8610hpcd_diu_init();
-
- /* fill in Graphic device struct */
- sprintf(pGD->modeIdent,
- "%dx%dx%d %ldkHz %ldHz",
- xres, yres, 32, 64, 60);
+ printf("DIU: Switching to %s monitor @ %ux%u\n", name, xres, yres);
+ out_8(&pixis->brdcfg0, temp);
- pGD->frameAdrs = (unsigned int)fsl_fb_open(&info);
- pGD->winSizeX = xres;
- pGD->winSizeY = yres - info->logo_height;
- pGD->plnSizeX = pGD->winSizeX;
- pGD->plnSizeY = pGD->winSizeY;
-
- pGD->gdfBytesPP = 4;
- pGD->gdfIndex = GDF_32BIT_X888RGB;
-
- pGD->isaBase = 0;
- pGD->pciBase = 0;
- pGD->memSize = info->screen_size - info->logo_size;
-
- /* Cursor Start Address */
- pGD->dprBase = 0;
- pGD->vprBase = 0;
- pGD->cprBase = 0;
-
- return (void *)pGD;
+ return fsl_diu_init(xres, yres, pixel_format, gamma_fix);
}
-
-void video_set_lut (unsigned int index, /* color number */
- unsigned char r, /* red */
- unsigned char g, /* green */
- unsigned char b /* blue */
- )
-{
- return;
-}
-
-#endif /* defined(CONFIG_VIDEO) || defined(CONFIG_CFB_CONSOLE) */
-
-#endif /* CONFIG_FSL_DIU_FB */
projects / karo-tx-uboot.git / blobdiff