u-boot/board/esd/voh405/voh405.c

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/*
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* (C) Copyright 2001-2004
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* 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/io.h>
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#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[]);
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extern void lxt971_no_sleep(void);
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/* 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 *);
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/* 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)
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{
/*
* 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_r (void)
{
unsigned char *duart0_mcr = (unsigned char *)((ulong)DUART0_BA + 4);
unsigned char *duart1_mcr = (unsigned char *)((ulong)DUART1_BA + 4);
unsigned short *lcd_contrast =
(unsigned short *)((ulong)CONFIG_SYS_FPGA_BASE_ADDR + CONFIG_SYS_FPGA_CTRL + 4);
unsigned short *lcd_backlight =
(unsigned short *)((ulong)CONFIG_SYS_FPGA_BASE_ADDR + CONFIG_SYS_FPGA_CTRL + 6);
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unsigned char *dst;
ulong len = sizeof(fpgadata);
int status;
int index;
int i;
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char *str;
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dst = malloc(CONFIG_SYS_FPGA_MAX_SIZE);
if (gunzip (dst, CONFIG_SYS_FPGA_MAX_SIZE, (uchar *)fpgadata, &len) != 0) {
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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);
/*
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* Reset FPGA via FPGA_INIT pin
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*/
out_be32((void*)GPIO0_TCR, in_be32((void*)GPIO0_TCR) | FPGA_INIT); /* setup FPGA_INIT as output */
out_be32((void*)GPIO0_OR, in_be32((void*)GPIO0_OR) & ~FPGA_INIT); /* reset low */
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udelay(1000); /* wait 1ms */
out_be32((void*)GPIO0_OR, in_be32((void*)GPIO0_OR) | FPGA_INIT); /* reset high */
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udelay(1000); /* wait 1ms */
/*
* Reset external DUARTs
*/
out_be32((void*)GPIO0_OR, in_be32((void*)GPIO0_OR) | CONFIG_SYS_DUART_RST); /* set reset to high */
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udelay(10); /* wait 10us */
out_be32((void*)GPIO0_OR, in_be32((void*)GPIO0_OR) & ~CONFIG_SYS_DUART_RST); /* set reset to low */
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udelay(1000); /* wait 1ms */
/*
* Set NAND-FLASH GPIO signals to default
*/
out_be32((void*)GPIO0_OR, in_be32((void*)GPIO0_OR) & ~(CONFIG_SYS_NAND_CLE | CONFIG_SYS_NAND_ALE));
out_be32((void*)GPIO0_OR, in_be32((void*)GPIO0_OR) | CONFIG_SYS_NAND_CE);
/*
* Setup EEPROM write protection
*/
out_be32((void*)GPIO0_OR, in_be32((void*)GPIO0_OR) | CONFIG_SYS_EEPROM_WP);
out_be32((void*)GPIO0_TCR, in_be32((void*)GPIO0_TCR) | CONFIG_SYS_EEPROM_WP);
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/*
* Enable interrupts in exar duart mcr[3]
*/
out_8(duart0_mcr, 0x08);
out_8(duart1_mcr, 0x08);
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/*
* Init lcd interface and display logo
*/
str = getenv("bd_type");
if (strcmp(str, "voh405_bw") == 0) {
lcd_setup(0, 1);
lcd_init((uchar *)CONFIG_SYS_LCD_SMALL_REG, (uchar *)CONFIG_SYS_LCD_SMALL_MEM,
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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 *)CONFIG_SYS_LCD_SMALL_REG, (uchar *)CONFIG_SYS_LCD_SMALL_MEM,
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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 *)CONFIG_SYS_LCD_BIG_REG, (uchar *)CONFIG_SYS_LCD_BIG_MEM,
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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 *)CONFIG_SYS_LCD_SMALL_REG, (uchar *)CONFIG_SYS_LCD_SMALL_MEM,
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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 *)CONFIG_SYS_LCD_BIG_REG, (uchar *)CONFIG_SYS_LCD_BIG_MEM,
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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
*/
out_8((unsigned char *)(CONFIG_SYS_LCD_SMALL_REG + 2),
in_8((unsigned char *)(CONFIG_SYS_LCD_SMALL_REG + 2)) | 0x01);
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/*
* Set default contrast voltage on epson vga controller
*/
out_be16(lcd_contrast, 0x4646);
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/*
* Enable backlight
*/
out_be16(lcd_backlight, 0xffff);
/*
* Enable external I2C bus
*/
out_be32((void*)GPIO0_TCR, in_be32((void*)GPIO0_TCR) | CONFIG_SYS_IIC_ON);
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return (0);
}
/*
* Check Board Identity:
*/
int checkboard (void)
{
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char str[64];
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int i = getenv_r ("serial#", str, sizeof(str));
puts ("Board: ");
if (i == -1) {
puts ("### No HW ID - assuming VOH405");
} else {
puts(str);
}
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if (getenv_r("bd_type", str, sizeof(str)) != -1) {
printf(" (%s)", str);
} else {
puts(" (Missing bd_type!)");
}
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putc ('\n');
return 0;
}
#ifdef CONFIG_IDE_RESET
void ide_set_reset(int on)
{
volatile unsigned short *fpga_mode =
(unsigned short *)((ulong)CONFIG_SYS_FPGA_BASE_ADDR + CONFIG_SYS_FPGA_CTRL);
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/*
* Assert or deassert CompactFlash Reset Pin
*/
if (on) { /* assert RESET */
*fpga_mode &= ~(CONFIG_SYS_FPGA_CTRL_CF_RESET);
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} else { /* release RESET */
*fpga_mode |= CONFIG_SYS_FPGA_CTRL_CF_RESET;
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}
}
#endif /* CONFIG_IDE_RESET */
#if defined(CONFIG_RESET_PHY_R)
void reset_phy(void)
{
#ifdef CONFIG_LXT971_NO_SLEEP
/*
* Disable sleep mode in LXT971
*/
lxt971_no_sleep();
#endif
}
#endif
#if defined(CONFIG_SYS_EEPROM_WREN)
/* Input: <dev_addr> I2C address of EEPROM device to enable.
* <state> -1: deliver current state
* 0: disable write
* 1: enable write
* Returns: -1: wrong device address
* 0: dis-/en- able done
* 0/1: current state if <state> was -1.
*/
int eeprom_write_enable (unsigned dev_addr, int state)
{
if (CONFIG_SYS_I2C_EEPROM_ADDR != dev_addr) {
return -1;
} else {
switch (state) {
case 1:
/* Enable write access, clear bit GPIO0. */
out_be32((void*)GPIO0_OR, in_be32((void*)GPIO0_OR) & ~CONFIG_SYS_EEPROM_WP);
state = 0;
break;
case 0:
/* Disable write access, set bit GPIO0. */
out_be32((void*)GPIO0_OR, in_be32((void*)GPIO0_OR) | CONFIG_SYS_EEPROM_WP);
state = 0;
break;
default:
/* Read current status back. */
state = (0 == (in_be32((void*)GPIO0_OR) & CONFIG_SYS_EEPROM_WP));
break;
}
}
return state;
}
int do_eep_wren (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
{
int query = argc == 1;
int state = 0;
if (query) {
/* Query write access state. */
state = eeprom_write_enable (CONFIG_SYS_I2C_EEPROM_ADDR, -1);
if (state < 0) {
puts ("Query of write access state failed.\n");
} else {
printf ("Write access for device 0x%0x is %sabled.\n",
CONFIG_SYS_I2C_EEPROM_ADDR, state ? "en" : "dis");
state = 0;
}
} else {
if ('0' == argv[1][0]) {
/* Disable write access. */
state = eeprom_write_enable (CONFIG_SYS_I2C_EEPROM_ADDR, 0);
} else {
/* Enable write access. */
state = eeprom_write_enable (CONFIG_SYS_I2C_EEPROM_ADDR, 1);
}
if (state < 0) {
puts ("Setup of write access state failed.\n");
}
}
return state;
}
U_BOOT_CMD(eepwren, 2, 0, do_eep_wren,
"eepwren - Enable / disable / query EEPROM write access\n",
NULL);
#endif /* #if defined(CONFIG_SYS_EEPROM_WREN) */