[people/ms/u-boot.git] / arch / powerpc / 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/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", in_be32(clkdvdr));
	temp = in_be32(clkdvdr) & 0xFFFFFF00;
	out_be32(clkdvdr, temp | (pixval & 0xFF));
	debug("DIU: Modified value of CLKDVDR = 0x%08x\n", in_be32(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 NULL;

	/* fill in Graphic device struct */
	sprintf(pGD->modeIdent, "%dx%dx%d %dkHz %dHz",
		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
8d1f2682	30	#include "../../../../board/freescale/common/fsl_diu_fb.h"
0e1bad47 YS	31
0e1bad47 YS	32	#if defined(CONFIG_VIDEO) \|\| defined(CONFIG_CFB_CONSOLE)
52cb4d4f	33	#include <stdio_dev.h>
0e1bad47 YS	34	#include <video_fb.h>
	35	#endif
	36
92c20fbd	37	#ifdef CONFIG_FSL_DIU_LOGO_BMP
0e1bad47	38	extern unsigned int FSL_Logo_BMP[];
92c20fbd JR	39	#else
	40	#define FSL_Logo_BMP NULL
	41	#endif
0e1bad47 YS	42
	43	static int xres, yres;
	44
	45	void diu_set_pixel_clock(unsigned int pixclock)
	46	{
6d0f6bcf	47	volatile immap_t immap = (immap_t )CONFIG_SYS_IMMR;
0e1bad47 YS	48	volatile clk512x_t *clk = &immap->clk;
	49	volatile unsigned int *clkdvdr = &clk->scfr[0];
	50	unsigned long speed_ccb, temp, pixval;
	51
	52	speed_ccb = get_bus_freq(0) * 4;
	53	temp = 1000000000/pixclock;
	54	temp *= 1000;
	55	pixval = speed_ccb / temp;
	56	debug("DIU pixval = %lu\n", pixval);
	57
	58	/* Modify PXCLK in GUTS CLKDVDR */
57ae8a5c DZ	59	debug("DIU: Current value of CLKDVDR = 0x%08x\n", in_be32(clkdvdr));
	60	temp = in_be32(clkdvdr) & 0xFFFFFF00;
	61	out_be32(clkdvdr, temp \| (pixval & 0xFF));
	62	debug("DIU: Modified value of CLKDVDR = 0x%08x\n", in_be32(clkdvdr));
0e1bad47 YS	63	}
0e1bad47 YS	64
4c154252 JR	65	char valid_bmp(char addr)
	66	{
	67	unsigned long h_addr;
	68
	69	h_addr = simple_strtoul(addr, NULL, 16);
	70	if (h_addr < CONFIG_SYS_FLASH_BASE \|\|
	71	h_addr >= (CONFIG_SYS_FLASH_BASE + CONFIG_SYS_FLASH_SIZE - 1)) {
	72	printf("bmp addr %lx is not a valid flash address\n", h_addr);
	73	return 0;
	74	} else if (((char )(h_addr) != 'B') \|\| ((char )(h_addr+1) != 'M')) {
	75	printf("bmp addr is not a bmp\n");
	76	return 0;
	77	} else
	78	return (char *)h_addr;
	79	}
	80
de26ef99	81	int mpc5121_diu_init(void)
0e1bad47 YS	82	{
0e1bad47 YS	83	unsigned int pixel_format;
4c154252 JR	84	char *bmp = NULL;
4c154252 JR	85	char *bmp_env;
0e1bad47 YS	86
	87	xres = 1024;
	88	yres = 768;
	89	pixel_format = 0x88883316;
	90
de26ef99	91	debug("mpc5121_diu_init\n");
4c154252 JR	92	bmp_env = getenv("diu_bmp_addr");
	93	if (bmp_env) {
	94	bmp = valid_bmp(bmp_env);
	95	}
	96	if (!bmp)
debf8741	97	bmp = (char *)FSL_Logo_BMP;
4c154252	98	return fsl_diu_init(xres, pixel_format, 0, (unsigned char *)bmp);
0e1bad47 YS	99	}
0e1bad47 YS	100
de26ef99	101	int mpc5121diu_init_show_bmp(cmd_tbl_t *cmdtp,
0e1bad47 YS	102	int flag, int argc, char *argv[])
	103	{
	104	unsigned int addr;
	105
	106	if (argc < 2) {
62c3ae7c	107	cmd_usage(cmdtp);
0e1bad47 YS	108	return 1;
	109	}
	110
	111	if (!strncmp(argv[1], "init", 4)) {
	112	#if defined(CONFIG_VIDEO) \|\| defined(CONFIG_CFB_CONSOLE)
	113	fsl_diu_clear_screen();
	114	drv_video_init();
	115	#else
de26ef99	116	return mpc5121_diu_init();
0e1bad47 YS	117	#endif
	118	} else {
	119	addr = simple_strtoul(argv[1], NULL, 16);
	120	fsl_diu_clear_screen();
	121	fsl_diu_display_bmp((unsigned char *)addr, 0, 0, 0);
	122	}
	123
	124	return 0;
	125	}
	126
	127	U_BOOT_CMD(
de26ef99	128	diufb, CONFIG_SYS_MAXARGS, 1, mpc5121diu_init_show_bmp,
2fb2604d	129	"Init or Display BMP file",
0e1bad47	130	"init\n - initialize DIU\n"
a89c33db	131	"addr\n - display bmp at address 'addr'"
0e1bad47 YS	132	);
	133
	134
	135	#if defined(CONFIG_VIDEO) \|\| defined(CONFIG_CFB_CONSOLE)
	136
	137	/*
	138	* The Graphic Device
	139	*/
	140	GraphicDevice ctfb;
	141	void *video_hw_init(void)
	142	{
	143	GraphicDevice pGD = (GraphicDevice ) &ctfb;
	144	struct fb_info *info;
	145
de26ef99	146	if (mpc5121_diu_init() < 0)
51c2ac9b	147	return NULL;
0e1bad47 YS	148
0e1bad47 YS	149	/* fill in Graphic device struct */
51c2ac9b	150	sprintf(pGD->modeIdent, "%dx%dx%d %dkHz %dHz",
0e1bad47 YS	151	xres, yres, 32, 64, 60);
	152
	153	pGD->frameAdrs = (unsigned int)fsl_fb_open(&info);
	154	pGD->winSizeX = xres;
	155	pGD->winSizeY = yres - info->logo_height;
	156	pGD->plnSizeX = pGD->winSizeX;
	157	pGD->plnSizeY = pGD->winSizeY;
	158
	159	pGD->gdfBytesPP = 4;
	160	pGD->gdfIndex = GDF_32BIT_X888RGB;
	161
	162	pGD->isaBase = 0;
	163	pGD->pciBase = 0;
	164	pGD->memSize = info->screen_size - info->logo_size;
	165
	166	/* Cursor Start Address */
	167	pGD->dprBase = 0;
	168	pGD->vprBase = 0;
	169	pGD->cprBase = 0;
	170
	171	return (void *)pGD;
	172	}
	173
	174	/**
	175	* Set the LUT
	176	*
	177	* @index: color number
	178	* @r: red
	179	* @b: blue
	180	* @g: green
	181	*/
	182	void video_set_lut
	183	(unsigned int index, unsigned char r, unsigned char g, unsigned char b)
	184	{
	185	return;
	186	}
	187
	188	#endif /* defined(CONFIG_VIDEO) \|\| defined(CONFIG_CFB_CONSOLE) */