board/esd/voh405/voh405.c

/*
 * (C) Copyright 2001-2004
 * Stefan Roese, esd gmbh germany, stefan.roese@esd-electronics.com
 *
 * 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 <asm/processor.h>
#include <command.h>
#include <malloc.h>

/* ------------------------------------------------------------------------- */

#if 0
#define FPGA_DEBUG
#endif

extern int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
extern void lxt971_no_sleep(void);

/* fpga configuration data - gzip compressed and generated by bin2c */
const unsigned char fpgadata[] =
{
#include "fpgadata.c"
};

/*
 * include common fpga code (for esd boards)
 */
#include "../common/fpga.c"


/* Prototypes */
int gunzip(void *, int, unsigned char *, unsigned long *);


/* logo bitmap data - gzip compressed and generated by bin2c */
unsigned char logo_bmp_320[] =
{
#include "logo_320_240_4bpp.c"
};

unsigned char logo_bmp_640[] =
{
#include "logo_640_480_24bpp.c"
};


/*
 * include common lcd code (for esd boards)
 */
#include "../common/lcd.c"

#include "../common/s1d13704_320_240_4bpp.h"
#include "../common/s1d13806_320_240_4bpp.h"
#include "../common/s1d13806_640_480_16bpp.h"


int board_early_init_f (void)
{
	/*
	 * IRQ 0-15  405GP internally generated; active high; level sensitive
	 * IRQ 16    405GP internally generated; active low; level sensitive
	 * IRQ 17-24 RESERVED
	 * IRQ 25 (EXT IRQ 0) CAN0; active low; level sensitive
	 * IRQ 26 (EXT IRQ 1) SER0 ; active low; level sensitive
	 * IRQ 27 (EXT IRQ 2) SER1; active low; level sensitive
	 * IRQ 28 (EXT IRQ 3) FPGA 0; active low; level sensitive
	 * IRQ 29 (EXT IRQ 4) FPGA 1; active low; level sensitive
	 * IRQ 30 (EXT IRQ 5) PCI INTA; active low; level sensitive
	 * IRQ 31 (EXT IRQ 6) COMPACT FLASH; active high; level sensitive
	 */
	mtdcr(uicsr, 0xFFFFFFFF);       /* clear all ints */
	mtdcr(uicer, 0x00000000);       /* disable all ints */
	mtdcr(uiccr, 0x00000000);       /* set all to be non-critical*/
	mtdcr(uicpr, 0xFFFFFFB5);       /* set int polarities */
	mtdcr(uictr, 0x10000000);       /* set int trigger levels */
	mtdcr(uicvcr, 0x00000001);      /* set vect base=0,INT0 highest priority*/
	mtdcr(uicsr, 0xFFFFFFFF);       /* clear all ints */

	/*
	 * EBC Configuration Register: set ready timeout to 512 ebc-clks -> ca. 15 us
	 */
	mtebc (epcr, 0xa8400000); /* ebc always driven */

	return 0;
}


int misc_init_f (void)
{
	return 0;  /* dummy implementation */
}


int misc_init_r (void)
{
	volatile unsigned char *duart0_mcr = (unsigned char *)((ulong)DUART0_BA + 4);
	volatile unsigned char *duart1_mcr = (unsigned char *)((ulong)DUART1_BA + 4);
	volatile unsigned short *lcd_contrast =
		(unsigned short *)((ulong)CFG_FPGA_BASE_ADDR + CFG_FPGA_CTRL + 4);
	volatile unsigned short *lcd_backlight =
		(unsigned short *)((ulong)CFG_FPGA_BASE_ADDR + CFG_FPGA_CTRL + 6);
	unsigned char *dst;
	ulong len = sizeof(fpgadata);
	int status;
	int index;
	int i;
	char *str;

	dst = malloc(CFG_FPGA_MAX_SIZE);
	if (gunzip (dst, CFG_FPGA_MAX_SIZE, (uchar *)fpgadata, &len) != 0) {
		printf ("GUNZIP ERROR - must RESET board to recover\n");
		do_reset (NULL, 0, 0, NULL);
	}

	status = fpga_boot(dst, len);
	if (status != 0) {
		printf("\nFPGA: Booting failed ");
		switch (status) {
		case ERROR_FPGA_PRG_INIT_LOW:
			printf("(Timeout: INIT not low after asserting PROGRAM*)\n ");
			break;
		case ERROR_FPGA_PRG_INIT_HIGH:
			printf("(Timeout: INIT not high after deasserting PROGRAM*)\n ");
			break;
		case ERROR_FPGA_PRG_DONE:
			printf("(Timeout: DONE not high after programming FPGA)\n ");
			break;
		}

		/* display infos on fpgaimage */
		index = 15;
		for (i=0; i<4; i++) {
			len = dst[index];
			printf("FPGA: %s\n", &(dst[index+1]));
			index += len+3;
		}
		putc ('\n');
		/* delayed reboot */
		for (i=20; i>0; i--) {
			printf("Rebooting in %2d seconds \r",i);
			for (index=0;index<1000;index++)
				udelay(1000);
		}
		putc ('\n');
		do_reset(NULL, 0, 0, NULL);
	}

	puts("FPGA:  ");

	/* display infos on fpgaimage */
	index = 15;
	for (i=0; i<4; i++) {
		len = dst[index];
		printf("%s ", &(dst[index+1]));
		index += len+3;
	}
	putc ('\n');

	free(dst);

	/*
	 * Reset FPGA via FPGA_INIT pin
	 */
	out32(GPIO0_TCR, in32(GPIO0_TCR) | FPGA_INIT); /* setup FPGA_INIT as output */
	out32(GPIO0_OR, in32(GPIO0_OR) & ~FPGA_INIT);  /* reset low */
	udelay(1000); /* wait 1ms */
	out32(GPIO0_OR, in32(GPIO0_OR) | FPGA_INIT);   /* reset high */
	udelay(1000); /* wait 1ms */

	/*
	 * Reset external DUARTs
	 */
	out32(GPIO0_OR, in32(GPIO0_OR) | CFG_DUART_RST); /* set reset to high */
	udelay(10); /* wait 10us */
	out32(GPIO0_OR, in32(GPIO0_OR) & ~CFG_DUART_RST); /* set reset to low */
	udelay(1000); /* wait 1ms */

	/*
	 * Set NAND-FLASH GPIO signals to default
	 */
	out32(GPIO0_OR, in32(GPIO0_OR) & ~(CFG_NAND_CLE | CFG_NAND_ALE));
	out32(GPIO0_OR, in32(GPIO0_OR) | CFG_NAND_CE);

	/*
	 * Enable interrupts in exar duart mcr[3]
	 */
	*duart0_mcr = 0x08;
	*duart1_mcr = 0x08;

	/*
	 * Init lcd interface and display logo
	 */
	str = getenv("bd_type");
	if (strcmp(str, "voh405_bw") == 0) {
		lcd_setup(0, 1);
		lcd_init((uchar *)CFG_LCD_SMALL_REG, (uchar *)CFG_LCD_SMALL_MEM,
			 regs_13704_320_240_4bpp,
			 sizeof(regs_13704_320_240_4bpp)/sizeof(regs_13704_320_240_4bpp[0]),
			 logo_bmp_320, sizeof(logo_bmp_320));
	} else if (strcmp(str, "voh405_bwbw") == 0) {
		lcd_setup(0, 1);
		lcd_init((uchar *)CFG_LCD_SMALL_REG, (uchar *)CFG_LCD_SMALL_MEM,
			 regs_13704_320_240_4bpp,
			 sizeof(regs_13704_320_240_4bpp)/sizeof(regs_13704_320_240_4bpp[0]),
			 logo_bmp_320, sizeof(logo_bmp_320));
		lcd_setup(1, 1);
		lcd_init((uchar *)CFG_LCD_BIG_REG, (uchar *)CFG_LCD_BIG_MEM,
			 regs_13806_320_240_4bpp,
			 sizeof(regs_13806_320_240_4bpp)/sizeof(regs_13806_320_240_4bpp[0]),
			 logo_bmp_320, sizeof(logo_bmp_320));
	} else if (strcmp(str, "voh405_bwc") == 0) {
		lcd_setup(0, 1);
		lcd_init((uchar *)CFG_LCD_SMALL_REG, (uchar *)CFG_LCD_SMALL_MEM,
			 regs_13704_320_240_4bpp,
			 sizeof(regs_13704_320_240_4bpp)/sizeof(regs_13704_320_240_4bpp[0]),
			 logo_bmp_320, sizeof(logo_bmp_320));
		lcd_setup(1, 0);
		lcd_init((uchar *)CFG_LCD_BIG_REG, (uchar *)CFG_LCD_BIG_MEM,
			 regs_13806_640_480_16bpp,
			 sizeof(regs_13806_640_480_16bpp)/sizeof(regs_13806_640_480_16bpp[0]),
			 logo_bmp_640, sizeof(logo_bmp_640));
	} else {
		printf("Unsupported bd_type defined (%s) -> No display configured!\n", str);
		return 0;
	}

	/*
	 * Set invert bit in small lcd controller
	 */
	*(unsigned char *)(CFG_LCD_SMALL_REG + 2) |= 0x01;

	/*
	 * Set default contrast voltage on epson vga controller
	 */
	*lcd_contrast = 0x4646;

	/*
	 * Enable backlight
	 */
	*lcd_backlight = 0xffff;

	return (0);
}


/*
 * Check Board Identity:
 */

int checkboard (void)
{
	char str[64];
	int i = getenv_r ("serial#", str, sizeof(str));

	puts ("Board: ");

	if (i == -1) {
		puts ("### No HW ID - assuming VOH405");
	} else {
		puts(str);
	}

	if (getenv_r("bd_type", str, sizeof(str)) != -1) {
		printf(" (%s)", str);
	} else {
		puts(" (Missing bd_type!)");
	}

	putc ('\n');

	/*
	 * Disable sleep mode in LXT971
	 */
	lxt971_no_sleep();

	return 0;
}

/* ------------------------------------------------------------------------- */

long int initdram (int board_type)
{
	unsigned long val;

	mtdcr(memcfga, mem_mb0cf);
	val = mfdcr(memcfgd);

#if 0
	printf("\nmb0cf=%x\n", val); /* test-only */
	printf("strap=%x\n", mfdcr(strap)); /* test-only */
#endif

	return (4*1024*1024 << ((val & 0x000e0000) >> 17));
}

/* ------------------------------------------------------------------------- */

int testdram (void)
{
	/* TODO: XXX XXX XXX */
	printf ("test: 16 MB - ok\n");

	return (0);
}

/* ------------------------------------------------------------------------- */

#ifdef CONFIG_IDE_RESET
void ide_set_reset(int on)
{
	volatile unsigned short *fpga_mode =
		(unsigned short *)((ulong)CFG_FPGA_BASE_ADDR + CFG_FPGA_CTRL);

	/*
	 * Assert or deassert CompactFlash Reset Pin
	 */
	if (on) {		/* assert RESET */
		*fpga_mode &= ~(CFG_FPGA_CTRL_CF_RESET);
	} else {		/* release RESET */
		*fpga_mode |= CFG_FPGA_CTRL_CF_RESET;
	}
}
#endif /* CONFIG_IDE_RESET */


#if (CONFIG_COMMANDS & CFG_CMD_NAND)
#include <linux/mtd/nand.h>
extern struct nand_chip nand_dev_desc[CFG_MAX_NAND_DEVICE];

void nand_init(void)
{
	nand_probe(CFG_NAND_BASE);
	if (nand_dev_desc[0].ChipID != NAND_ChipID_UNKNOWN) {
		print_size(nand_dev_desc[0].totlen, "\n");
	}
}
#endif