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![Timur Tabi](/assets/img/avatar_default.png)
Refactor and document the Freescale PIXIS code, used on most 85xx and 86xx boards. This makes the code easier to read and more flexible. Delete pixis.h, because none of the exported functions were actually being used by any other file. Make all of the functions in pixis.c 'static'. Remove "#include pixis.h" from every file that has it. Remove some unnecessary #includes. Make 'pixis_base' into a macro, so that we don't need to define it in every function. Add "while(1);" loops at the end of functions that reset the board, so that execution doesn't continue while the reset is in progress. Replace in_8/out_8 calls with clrbits_8, setbits_8, or clrsetbits_8, where appropriate. Replace ulong/uint with their spelled-out equivalents. Remove unnecessary typecasts, changing the types of some variables if necessary. Add CONFIG_SYS_PIXIS_VCFGEN0_ENABLE and CONFIG_SYS_PIXIS_VBOOT_ENABLE to make it easier for specific boards to support variations in the PIXIS registers sets. No current boards appears to need this feature. Fix the definition of CONFIG_SYS_PIXIS_VBOOT_MASK for the MPC8610 HPCD. Apparently, "pixis_reset altbank" has never worked on this board. Signed-off-by: Timur Tabi <timur@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
198 lines
4.8 KiB
C
198 lines
4.8 KiB
C
/*
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* Copyright 2007 Freescale Semiconductor, Inc.
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* York Sun <yorksun@freescale.com>
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*
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* FSL DIU Framebuffer driver
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*
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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*/
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#include <common.h>
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#include <command.h>
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#include <asm/io.h>
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#ifdef CONFIG_FSL_DIU_FB
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#include "../common/fsl_diu_fb.h"
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#if defined(CONFIG_VIDEO) || defined(CONFIG_CFB_CONSOLE)
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#include <stdio_dev.h>
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#include <video_fb.h>
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#endif
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extern unsigned int FSL_Logo_BMP[];
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static int xres, yres;
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void diu_set_pixel_clock(unsigned int pixclock)
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{
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volatile immap_t *immap = (immap_t *)CONFIG_SYS_IMMR;
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volatile ccsr_gur_t *gur = &immap->im_gur;
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volatile unsigned int *guts_clkdvdr = &gur->clkdvdr;
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unsigned long speed_ccb, temp, pixval;
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speed_ccb = get_bus_freq(0);
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temp = 1000000000/pixclock;
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temp *= 1000;
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pixval = speed_ccb / temp;
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debug("DIU pixval = %lu\n", pixval);
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/* Modify PXCLK in GUTS CLKDVDR */
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debug("DIU: Current value of CLKDVDR = 0x%08x\n", *guts_clkdvdr);
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temp = *guts_clkdvdr & 0x2000FFFF;
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*guts_clkdvdr = temp; /* turn off clock */
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*guts_clkdvdr = temp | 0x80000000 | ((pixval & 0x1F) << 16);
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debug("DIU: Modified value of CLKDVDR = 0x%08x\n", *guts_clkdvdr);
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}
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void mpc8610hpcd_diu_init(void)
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{
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char *monitor_port;
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int gamma_fix;
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unsigned int pixel_format;
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unsigned char tmp_val;
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unsigned char pixis_arch;
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u8 *pixis_base = (u8 *)PIXIS_BASE;
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tmp_val = in_8(pixis_base + PIXIS_BRDCFG0);
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pixis_arch = in_8(pixis_base + PIXIS_VER);
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monitor_port = getenv("monitor");
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if (!strncmp(monitor_port, "0", 1)) { /* 0 - DVI */
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xres = 1280;
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yres = 1024;
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if (pixis_arch == 0x01)
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pixel_format = 0x88882317;
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else
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pixel_format = 0x88883316;
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gamma_fix = 0;
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out_8(pixis_base + PIXIS_BRDCFG0, tmp_val | 0x08);
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} else if (!strncmp(monitor_port, "1", 1)) { /* 1 - Single link LVDS */
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xres = 1024;
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yres = 768;
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pixel_format = 0x88883316;
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gamma_fix = 0;
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out_8(pixis_base + PIXIS_BRDCFG0, (tmp_val & 0xf7) | 0x10);
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} else if (!strncmp(monitor_port, "2", 1)) { /* 2 - Double link LVDS */
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xres = 1280;
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yres = 1024;
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pixel_format = 0x88883316;
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gamma_fix = 1;
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out_8(pixis_base + PIXIS_BRDCFG0, tmp_val & 0xe7);
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} else { /* DVI */
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xres = 1280;
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yres = 1024;
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pixel_format = 0x88882317;
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gamma_fix = 0;
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out_8(pixis_base + PIXIS_BRDCFG0, tmp_val | 0x08);
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}
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fsl_diu_init(xres, pixel_format, gamma_fix,
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(unsigned char *)FSL_Logo_BMP);
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}
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int mpc8610diu_init_show_bmp(cmd_tbl_t *cmdtp,
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int flag, int argc, char *argv[])
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{
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unsigned int addr;
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if (argc < 2) {
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cmd_usage(cmdtp);
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return 1;
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}
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if (!strncmp(argv[1],"init",4)) {
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#if defined(CONFIG_VIDEO) || defined(CONFIG_CFB_CONSOLE)
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fsl_diu_clear_screen();
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drv_video_init();
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#else
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mpc8610hpcd_diu_init();
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#endif
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} else {
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addr = simple_strtoul(argv[1], NULL, 16);
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fsl_diu_clear_screen();
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fsl_diu_display_bmp((unsigned char *)addr, 0, 0, 0);
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}
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return 0;
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}
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U_BOOT_CMD(
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diufb, CONFIG_SYS_MAXARGS, 1, mpc8610diu_init_show_bmp,
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"Init or Display BMP file",
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"init\n - initialize DIU\n"
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"addr\n - display bmp at address 'addr'"
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);
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#if defined(CONFIG_VIDEO) || defined(CONFIG_CFB_CONSOLE)
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/*
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* The Graphic Device
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*/
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GraphicDevice ctfb;
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void *video_hw_init(void)
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{
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GraphicDevice *pGD = (GraphicDevice *) &ctfb;
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struct fb_info *info;
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mpc8610hpcd_diu_init();
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/* fill in Graphic device struct */
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sprintf(pGD->modeIdent,
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"%dx%dx%d %ldkHz %ldHz",
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xres, yres, 32, 64, 60);
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pGD->frameAdrs = (unsigned int)fsl_fb_open(&info);
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pGD->winSizeX = xres;
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pGD->winSizeY = yres - info->logo_height;
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pGD->plnSizeX = pGD->winSizeX;
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pGD->plnSizeY = pGD->winSizeY;
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pGD->gdfBytesPP = 4;
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pGD->gdfIndex = GDF_32BIT_X888RGB;
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pGD->isaBase = 0;
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pGD->pciBase = 0;
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pGD->memSize = info->screen_size - info->logo_size;
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/* Cursor Start Address */
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pGD->dprBase = 0;
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pGD->vprBase = 0;
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pGD->cprBase = 0;
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return (void *)pGD;
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}
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void video_set_lut (unsigned int index, /* color number */
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unsigned char r, /* red */
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unsigned char g, /* green */
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unsigned char b /* blue */
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)
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{
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return;
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}
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#endif /* defined(CONFIG_VIDEO) || defined(CONFIG_CFB_CONSOLE) */
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#endif /* CONFIG_FSL_DIU_FB */
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