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* Copyright 2008 Freescale Semiconductor, Inc.
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* York Sun <yorksun@freescale.com>
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* FSL DIU Framebuffer driver
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* See file CREDITS for list of people who contributed to this
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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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* 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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* 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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#include "../../board/freescale/common/pixis.h"
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#include "../../board/freescale/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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#ifdef CONFIG_FSL_DIU_LOGO_BMP
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extern unsigned int FSL_Logo_BMP[];
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#define FSL_Logo_BMP NULL
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static int xres, yres;
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void diu_set_pixel_clock(unsigned int pixclock)
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volatile immap_t *immap = (immap_t *)CONFIG_SYS_IMMR;
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volatile clk512x_t *clk = &immap->clk;
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volatile unsigned int *clkdvdr = &clk->scfr[0];
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unsigned long speed_ccb, temp, pixval;
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speed_ccb = get_bus_freq(0) * 4;
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temp = 1000000000/pixclock;
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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", *clkdvdr);
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temp = *clkdvdr & 0xFFFFFF00;
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*clkdvdr = temp | (pixval & 0xFF);
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debug("DIU: Modified value of CLKDVDR = 0x%08x\n", *clkdvdr);
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char *valid_bmp(char *addr)
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h_addr = simple_strtoul(addr, NULL, 16);
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if (h_addr < CONFIG_SYS_FLASH_BASE ||
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h_addr >= (CONFIG_SYS_FLASH_BASE + CONFIG_SYS_FLASH_SIZE - 1)) {
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printf("bmp addr %lx is not a valid flash address\n", h_addr);
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} else if ((*(char *)(h_addr) != 'B') || (*(char *)(h_addr+1) != 'M')) {
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printf("bmp addr is not a bmp\n");
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return (char *)h_addr;
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int mpc5121_diu_init(void)
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unsigned int pixel_format;
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pixel_format = 0x88883316;
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debug("mpc5121_diu_init\n");
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bmp_env = getenv("diu_bmp_addr");
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bmp = valid_bmp(bmp_env);
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bmp = (char *)FSL_Logo_BMP;
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return fsl_diu_init(xres, pixel_format, 0, (unsigned char *)bmp);
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int mpc5121diu_init_show_bmp(cmd_tbl_t *cmdtp,
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int flag, int argc, char *argv[])
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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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return mpc5121_diu_init();
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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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diufb, CONFIG_SYS_MAXARGS, 1, mpc5121diu_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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#if defined(CONFIG_VIDEO) || defined(CONFIG_CFB_CONSOLE)
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void *video_hw_init(void)
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GraphicDevice *pGD = (GraphicDevice *) &ctfb;
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struct fb_info *info;
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if (mpc5121_diu_init() < 0)
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/* fill in Graphic device struct */
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sprintf(pGD->modeIdent, "%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->gdfIndex = GDF_32BIT_X888RGB;
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pGD->memSize = info->screen_size - info->logo_size;
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/* Cursor Start Address */
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* @index: color number
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(unsigned int index, unsigned char r, unsigned char g, unsigned char b)
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#endif /* defined(CONFIG_VIDEO) || defined(CONFIG_CFB_CONSOLE) */