[people/ms/u-boot.git] / cpu / mpc512x / diu.c

/*
 * Copyright 2008 Freescale Semiconductor, Inc.
 * York Sun <yorksun@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
 */

#include <common.h>
#include <command.h>
#include <asm/io.h>

#include "../../board/freescale/common/pixis.h"
#include "../../board/freescale/common/fsl_diu_fb.h"

#if defined(CONFIG_VIDEO) || defined(CONFIG_CFB_CONSOLE)
#include <stdio_dev.h>
#include <video_fb.h>
#endif

#ifdef CONFIG_FSL_DIU_LOGO_BMP
extern unsigned int FSL_Logo_BMP[];
#else
#define FSL_Logo_BMP NULL
#endif

static int xres, yres;

void diu_set_pixel_clock(unsigned int pixclock)
{
	volatile immap_t *immap = (immap_t *)CONFIG_SYS_IMMR;
	volatile clk512x_t *clk = &immap->clk;
	volatile unsigned int *clkdvdr = &clk->scfr[0];
	unsigned long speed_ccb, temp, pixval;

	speed_ccb = get_bus_freq(0) * 4;
	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", *clkdvdr);
	temp = *clkdvdr & 0xFFFFFF00;
	*clkdvdr = temp | (pixval & 0xFF);
	debug("DIU: Modified value of CLKDVDR = 0x%08x\n", *clkdvdr);
}

char *valid_bmp(char *addr)
{
	unsigned long h_addr;

	h_addr = simple_strtoul(addr, NULL, 16);
	if (h_addr < CONFIG_SYS_FLASH_BASE ||
			h_addr >= (CONFIG_SYS_FLASH_BASE + CONFIG_SYS_FLASH_SIZE - 1)) {
		printf("bmp addr %lx is not a valid flash address\n", h_addr);
		return 0;
	} else if ((*(char *)(h_addr) != 'B') || (*(char *)(h_addr+1) != 'M')) {
		printf("bmp addr is not a bmp\n");
		return 0;
	} else
		return (char *)h_addr;
}

int mpc5121_diu_init(void)
{
	unsigned int pixel_format;
	char *bmp = NULL;
	char *bmp_env;

	xres = 1024;
	yres = 768;
	pixel_format = 0x88883316;

	debug("mpc5121_diu_init\n");
	bmp_env = getenv("diu_bmp_addr");
	if (bmp_env) {
		bmp = valid_bmp(bmp_env);
	}
	if (!bmp)
		bmp = (char *)FSL_Logo_BMP;
	return fsl_diu_init(xres, pixel_format, 0, (unsigned char *)bmp);
}

int mpc5121diu_init_show_bmp(cmd_tbl_t *cmdtp,
			     int flag, int argc, char *argv[])
{
	unsigned int addr;

	if (argc < 2) {
		cmd_usage(cmdtp);
		return 1;
	}

	if (!strncmp(argv[1], "init", 4)) {
#if defined(CONFIG_VIDEO) || defined(CONFIG_CFB_CONSOLE)
		fsl_diu_clear_screen();
		drv_video_init();
#else
		return mpc5121_diu_init();
#endif
	} else {
		addr = simple_strtoul(argv[1], NULL, 16);
		fsl_diu_clear_screen();
		fsl_diu_display_bmp((unsigned char *)addr, 0, 0, 0);
	}

	return 0;
}

U_BOOT_CMD(
	diufb, CONFIG_SYS_MAXARGS, 1, mpc5121diu_init_show_bmp,
	"Init or Display BMP file",
	"init\n    - initialize DIU\n"
	"addr\n    - display bmp at address 'addr'"
	);


#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;

	if (mpc5121_diu_init() < 0)
		return;

	/* fill in Graphic device struct */
	sprintf(pGD->modeIdent, "%dx%dx%d %ldkHz %ldHz",
		xres, yres, 32, 64, 60);

	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;
}

/**
  * Set the LUT
  *
  * @index: color number
  * @r: red
  * @b: blue
  * @g: green
  */
void video_set_lut
	(unsigned int index, unsigned char r, unsigned char g, unsigned char b)
{
	return;
}

#endif /* defined(CONFIG_VIDEO) || defined(CONFIG_CFB_CONSOLE) */
Commit	Line	Data
0e1bad47 YS	1	/*
	2	* Copyright 2008 Freescale Semiconductor, Inc.
	3	* York Sun <yorksun@freescale.com>
	4	*
	5	* FSL DIU Framebuffer driver
	6	*
	7	* See file CREDITS for list of people who contributed to this
	8	* project.
	9	*
	10	* This program is free software; you can redistribute it and/or
	11	* modify it under the terms of the GNU General Public License as
	12	* published by the Free Software Foundation; either version 2 of
	13	* the License, or (at your option) any later version.
	14	*
	15	* This program is distributed in the hope that it will be useful,
	16	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	17	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	18	* GNU General Public License for more details.
	19	*
	20	* You should have received a copy of the GNU General Public License
	21	* along with this program; if not, write to the Free Software
	22	* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
	23	* MA 02111-1307 USA
	24	*/
	25
	26	#include <common.h>
	27	#include <command.h>
	28	#include <asm/io.h>
	29
de26ef99 WD	30	#include "../../board/freescale/common/pixis.h"
de26ef99 WD	31	#include "../../board/freescale/common/fsl_diu_fb.h"
0e1bad47 YS	32
0e1bad47 YS	33	#if defined(CONFIG_VIDEO) \|\| defined(CONFIG_CFB_CONSOLE)
52cb4d4f	34	#include <stdio_dev.h>
0e1bad47 YS	35	#include <video_fb.h>
	36	#endif
	37
92c20fbd	38	#ifdef CONFIG_FSL_DIU_LOGO_BMP
0e1bad47	39	extern unsigned int FSL_Logo_BMP[];
92c20fbd JR	40	#else
	41	#define FSL_Logo_BMP NULL
	42	#endif
0e1bad47 YS	43
	44	static int xres, yres;
	45
	46	void diu_set_pixel_clock(unsigned int pixclock)
	47	{
6d0f6bcf	48	volatile immap_t immap = (immap_t )CONFIG_SYS_IMMR;
0e1bad47 YS	49	volatile clk512x_t *clk = &immap->clk;
	50	volatile unsigned int *clkdvdr = &clk->scfr[0];
	51	unsigned long speed_ccb, temp, pixval;
	52
	53	speed_ccb = get_bus_freq(0) * 4;
	54	temp = 1000000000/pixclock;
	55	temp *= 1000;
	56	pixval = speed_ccb / temp;
	57	debug("DIU pixval = %lu\n", pixval);
	58
	59	/* Modify PXCLK in GUTS CLKDVDR */
	60	debug("DIU: Current value of CLKDVDR = 0x%08x\n", *clkdvdr);
	61	temp = *clkdvdr & 0xFFFFFF00;
f8892657	62	*clkdvdr = temp \| (pixval & 0xFF);
0e1bad47 YS	63	debug("DIU: Modified value of CLKDVDR = 0x%08x\n", *clkdvdr);
	64	}
	65
4c154252 JR	66	char valid_bmp(char addr)
	67	{
	68	unsigned long h_addr;
	69
	70	h_addr = simple_strtoul(addr, NULL, 16);
	71	if (h_addr < CONFIG_SYS_FLASH_BASE \|\|
	72	h_addr >= (CONFIG_SYS_FLASH_BASE + CONFIG_SYS_FLASH_SIZE - 1)) {
	73	printf("bmp addr %lx is not a valid flash address\n", h_addr);
	74	return 0;
	75	} else if (((char )(h_addr) != 'B') \|\| ((char )(h_addr+1) != 'M')) {
	76	printf("bmp addr is not a bmp\n");
	77	return 0;
	78	} else
	79	return (char *)h_addr;
	80	}
	81
de26ef99	82	int mpc5121_diu_init(void)
0e1bad47 YS	83	{
0e1bad47 YS	84	unsigned int pixel_format;
4c154252 JR	85	char *bmp = NULL;
4c154252 JR	86	char *bmp_env;
0e1bad47 YS	87
	88	xres = 1024;
	89	yres = 768;
	90	pixel_format = 0x88883316;
	91
de26ef99	92	debug("mpc5121_diu_init\n");
4c154252 JR	93	bmp_env = getenv("diu_bmp_addr");
	94	if (bmp_env) {
	95	bmp = valid_bmp(bmp_env);
	96	}
	97	if (!bmp)
debf8741	98	bmp = (char *)FSL_Logo_BMP;
4c154252	99	return fsl_diu_init(xres, pixel_format, 0, (unsigned char *)bmp);
0e1bad47 YS	100	}
0e1bad47 YS	101
de26ef99	102	int mpc5121diu_init_show_bmp(cmd_tbl_t *cmdtp,
0e1bad47 YS	103	int flag, int argc, char *argv[])
	104	{
	105	unsigned int addr;
	106
	107	if (argc < 2) {
62c3ae7c	108	cmd_usage(cmdtp);
0e1bad47 YS	109	return 1;
	110	}
	111
	112	if (!strncmp(argv[1], "init", 4)) {
	113	#if defined(CONFIG_VIDEO) \|\| defined(CONFIG_CFB_CONSOLE)
	114	fsl_diu_clear_screen();
	115	drv_video_init();
	116	#else
de26ef99	117	return mpc5121_diu_init();
0e1bad47 YS	118	#endif
	119	} else {
	120	addr = simple_strtoul(argv[1], NULL, 16);
	121	fsl_diu_clear_screen();
	122	fsl_diu_display_bmp((unsigned char *)addr, 0, 0, 0);
	123	}
	124
	125	return 0;
	126	}
	127
	128	U_BOOT_CMD(
de26ef99	129	diufb, CONFIG_SYS_MAXARGS, 1, mpc5121diu_init_show_bmp,
2fb2604d	130	"Init or Display BMP file",
0e1bad47	131	"init\n - initialize DIU\n"
a89c33db	132	"addr\n - display bmp at address 'addr'"
0e1bad47 YS	133	);
	134
	135
	136	#if defined(CONFIG_VIDEO) \|\| defined(CONFIG_CFB_CONSOLE)
	137
	138	/*
	139	* The Graphic Device
	140	*/
	141	GraphicDevice ctfb;
	142	void *video_hw_init(void)
	143	{
	144	GraphicDevice pGD = (GraphicDevice ) &ctfb;
	145	struct fb_info *info;
	146
de26ef99	147	if (mpc5121_diu_init() < 0)
0e1bad47 YS	148	return;
	149
	150	/* fill in Graphic device struct */
	151	sprintf(pGD->modeIdent, "%dx%dx%d %ldkHz %ldHz",
	152	xres, yres, 32, 64, 60);
	153
	154	pGD->frameAdrs = (unsigned int)fsl_fb_open(&info);
	155	pGD->winSizeX = xres;
	156	pGD->winSizeY = yres - info->logo_height;
	157	pGD->plnSizeX = pGD->winSizeX;
	158	pGD->plnSizeY = pGD->winSizeY;
	159
	160	pGD->gdfBytesPP = 4;
	161	pGD->gdfIndex = GDF_32BIT_X888RGB;
	162
	163	pGD->isaBase = 0;
	164	pGD->pciBase = 0;
	165	pGD->memSize = info->screen_size - info->logo_size;
	166
	167	/* Cursor Start Address */
	168	pGD->dprBase = 0;
	169	pGD->vprBase = 0;
	170	pGD->cprBase = 0;
	171
	172	return (void *)pGD;
	173	}
	174
	175	/**
	176	* Set the LUT
	177	*
	178	* @index: color number
	179	* @r: red
	180	* @b: blue
	181	* @g: green
	182	*/
	183	void video_set_lut
	184	(unsigned int index, unsigned char r, unsigned char g, unsigned char b)
	185	{
	186	return;
	187	}
	188
	189	#endif /* defined(CONFIG_VIDEO) \|\| defined(CONFIG_CFB_CONSOLE) */