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uboot-1.1.4-kirkwood/board/esd/hh405/hh405.c

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u-boot 1.1.4
2024-01-07 23:57:24 +01:00
/*
* (C) Copyright 2001-2004
* Stefan Roese, esd gmbh germany, stefan.roese@esd-electronics.com
*
* (C) Copyright 2005
* Stefan Roese, DENX Software Engineering, sr@denx.de.
*
* 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>
#include <pci.h>
#include <sm501.h>
#ifdef CONFIG_VIDEO_SM501
#define SWAP32(x) ((((x) & 0x000000ff) << 24) | (((x) & 0x0000ff00) << 8)|\
(((x) & 0x00ff0000) >> 8) | (((x) & 0xff000000) >> 24) )
#ifdef CONFIG_VIDEO_SM501_8BPP
#error CONFIG_VIDEO_SM501_8BPP not supported.
#endif /* CONFIG_VIDEO_SM501_8BPP */
#ifdef CONFIG_VIDEO_SM501_16BPP
#define BPP 16
/*
* 800x600 display B084SN03: PCLK = 40MHz
* => 2*PCLK = 80MHz
* 336/4 = 84MHz
* => PCLK = 84MHz
*/
static const SMI_REGS init_regs_800x600 [] =
{
#if 1 /* test-only */
{0x0005c, SWAP32(0xffffffff)}, /* set endianess to big endian */
#else
{0x0005c, SWAP32(0x00000000)}, /* set endianess to little endian */
#endif
{0x00004, SWAP32(0x00000000)},
/* clocks for pm1... */
{0x00048, SWAP32(0x00021807)},
{0x0004C, SWAP32(0x221a0a01)},
{0x00054, SWAP32(0x00000001)},
/* clocks for pm0... */
{0x00040, SWAP32(0x00021807)},
{0x00044, SWAP32(0x221a0a01)},
{0x00054, SWAP32(0x00000000)},
/* panel control regs... */
{0x80000, SWAP32(0x0f013105)}, /* panel display control: 16-bit RGB 5:6:5 mode */
{0x80004, SWAP32(0xc428bb17)}, /* panel panning control ??? */
{0x8000C, SWAP32(0x00000000)}, /* panel fb address */
{0x80010, SWAP32(0x06400640)}, /* panel fb offset/window width */
{0x80014, SWAP32(0x03200000)}, /* panel fb width (0x320=800) */
{0x80018, SWAP32(0x02580000)}, /* panel fb height (0x258=600) */
{0x8001C, SWAP32(0x00000000)}, /* panel plane tl location */
{0x80020, SWAP32(0x02580320)}, /* panel plane br location */
{0x80024, SWAP32(0x041f031f)}, /* panel horizontal total */
{0x80028, SWAP32(0x00800347)}, /* panel horizontal sync */
{0x8002C, SWAP32(0x02730257)}, /* panel vertical total */
{0x80030, SWAP32(0x00040258)}, /* panel vertical sync */
{0x80200, SWAP32(0x00010000)}, /* crt display control */
{0, 0}
};
/*
* 1024x768 display G150XG02: PCLK = 65MHz
* => 2*PCLK = 130MHz
* 288/2 = 144MHz
* => PCLK = 72MHz
*/
static const SMI_REGS init_regs_1024x768 [] =
{
{0x00004, SWAP32(0x00000000)},
/* clocks for pm1... */
{0x00048, SWAP32(0x00021807)},
{0x0004C, SWAP32(0x011a0a01)},
{0x00054, SWAP32(0x00000001)},
/* clocks for pm0... */
{0x00040, SWAP32(0x00021807)},
{0x00044, SWAP32(0x011a0a01)},
{0x00054, SWAP32(0x00000000)},
/* panel control regs... */
{0x80000, SWAP32(0x0f013105)}, /* panel display control: 16-bit RGB 5:6:5 mode */
{0x80004, SWAP32(0xc428bb17)}, /* panel panning control ??? */
{0x8000C, SWAP32(0x00000000)}, /* panel fb address */
{0x80010, SWAP32(0x08000800)}, /* panel fb offset/window width */
{0x80014, SWAP32(0x04000000)}, /* panel fb width (0x400=1024) */
{0x80018, SWAP32(0x03000000)}, /* panel fb height (0x300=768) */
{0x8001C, SWAP32(0x00000000)}, /* panel plane tl location */
{0x80020, SWAP32(0x03000400)}, /* panel plane br location */
{0x80024, SWAP32(0x053f03ff)}, /* panel horizontal total */
{0x80028, SWAP32(0x0140040f)}, /* panel horizontal sync */
{0x8002C, SWAP32(0x032502ff)}, /* panel vertical total */
{0x80030, SWAP32(0x00260301)}, /* panel vertical sync */
{0x80200, SWAP32(0x00010000)}, /* crt display control */
{0, 0}
};
#endif /* CONFIG_VIDEO_SM501_16BPP */
#ifdef CONFIG_VIDEO_SM501_32BPP
#define BPP 32
/*
* 800x600 display B084SN03: PCLK = 40MHz
* => 2*PCLK = 80MHz
* 336/4 = 84MHz
* => PCLK = 84MHz
*/
static const SMI_REGS init_regs_800x600 [] =
{
#if 0 /* test-only */
{0x0005c, SWAP32(0xffffffff)}, /* set endianess to big endian */
#else
{0x0005c, SWAP32(0x00000000)}, /* set endianess to little endian */
#endif
{0x00004, SWAP32(0x00000000)},
/* clocks for pm1... */
{0x00048, SWAP32(0x00021807)},
{0x0004C, SWAP32(0x221a0a01)},
{0x00054, SWAP32(0x00000001)},
/* clocks for pm0... */
{0x00040, SWAP32(0x00021807)},
{0x00044, SWAP32(0x221a0a01)},
{0x00054, SWAP32(0x00000000)},
/* panel control regs... */
{0x80000, SWAP32(0x0f013106)}, /* panel display control: 32-bit RGB 8:8:8 mode */
{0x80004, SWAP32(0xc428bb17)}, /* panel panning control ??? */
{0x8000C, SWAP32(0x00000000)}, /* panel fb address */
{0x80010, SWAP32(0x0c800c80)}, /* panel fb offset/window width */
{0x80014, SWAP32(0x03200000)}, /* panel fb width (0x320=800) */
{0x80018, SWAP32(0x02580000)}, /* panel fb height (0x258=600) */
{0x8001C, SWAP32(0x00000000)}, /* panel plane tl location */
{0x80020, SWAP32(0x02580320)}, /* panel plane br location */
{0x80024, SWAP32(0x041f031f)}, /* panel horizontal total */
{0x80028, SWAP32(0x00800347)}, /* panel horizontal sync */
{0x8002C, SWAP32(0x02730257)}, /* panel vertical total */
{0x80030, SWAP32(0x00040258)}, /* panel vertical sync */
{0x80200, SWAP32(0x00010000)}, /* crt display control */
{0, 0}
};
/*
* 1024x768 display G150XG02: PCLK = 65MHz
* => 2*PCLK = 130MHz
* 288/2 = 144MHz
* => PCLK = 72MHz
*/
static const SMI_REGS init_regs_1024x768 [] =
{
{0x00004, SWAP32(0x00000000)},
/* clocks for pm1... */
{0x00048, SWAP32(0x00021807)},
{0x0004C, SWAP32(0x011a0a01)},
{0x00054, SWAP32(0x00000001)},
/* clocks for pm0... */
{0x00040, SWAP32(0x00021807)},
{0x00044, SWAP32(0x011a0a01)},
{0x00054, SWAP32(0x00000000)},
/* panel control regs... */
{0x80000, SWAP32(0x0f013106)}, /* panel display control: 32-bit RGB 8:8:8 mode */
{0x80004, SWAP32(0xc428bb17)}, /* panel panning control ??? */
{0x8000C, SWAP32(0x00000000)}, /* panel fb address */
{0x80010, SWAP32(0x10001000)}, /* panel fb offset/window width */
{0x80014, SWAP32(0x04000000)}, /* panel fb width (0x400=1024) */
{0x80018, SWAP32(0x03000000)}, /* panel fb height (0x300=768) */
{0x8001C, SWAP32(0x00000000)}, /* panel plane tl location */
{0x80020, SWAP32(0x03000400)}, /* panel plane br location */
{0x80024, SWAP32(0x053f03ff)}, /* panel horizontal total */
{0x80028, SWAP32(0x0140040f)}, /* panel horizontal sync */
{0x8002C, SWAP32(0x032502ff)}, /* panel vertical total */
{0x80030, SWAP32(0x00260301)}, /* panel vertical sync */
{0x80200, SWAP32(0x00010000)}, /* crt display control */
{0, 0}
};
#endif /* CONFIG_VIDEO_SM501_32BPP */
#endif /* CONFIG_VIDEO_SM501 */
#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_320_8bpp[] =
{
#include "logo_320_240_8bpp.c"
};
unsigned char logo_bmp_640[] =
{
#include "logo_640_480_24bpp.c"
};
unsigned char logo_bmp_1024[] =
{
#include "logo_1024_768_8bpp.c"
};
/*
* include common lcd code (for esd boards)
*/
#include "../common/lcd.c"
#include "../common/s1d13704_320_240_4bpp.h"
#include "../common/s1d13705_320_240_8bpp.h"
#include "../common/s1d13806_640_480_16bpp.h"
#include "../common/s1d13806_1024_768_8bpp.h"
/*
* include common auto-update code (for esd boards)
*/
#include "../common/auto_update.h"
au_image_t au_image[] = {
{"hh405/preinst.img", 0, -1, AU_SCRIPT},
{"hh405/u-boot.img", 0xfff80000, 0x00080000, AU_FIRMWARE},
{"hh405/pImage_${bd_type}", 0x00000000, 0x00100000, AU_NAND},
{"hh405/pImage.initrd", 0x00100000, 0x00200000, AU_NAND},
{"hh405/yaffsmt2.img", 0x00300000, 0x01c00000, AU_NAND},
{"hh405/postinst.img", 0, 0, AU_SCRIPT},
};
int N_AU_IMAGES = (sizeof(au_image) / sizeof(au_image[0]));
int board_revision(void)
{
unsigned long osrh_reg;
unsigned long isr1h_reg;
unsigned long tcr_reg;
unsigned long value;
/*
* Get version of HH405 board from GPIO's
*/
/*
* Setup GPIO pins (BLAST/GPIO0 and GPIO9 as GPIO)
*/
osrh_reg = in32(GPIO0_OSRH);
isr1h_reg = in32(GPIO0_ISR1H);
tcr_reg = in32(GPIO0_TCR);
out32(GPIO0_OSRH, osrh_reg & ~0xC0003000); /* output select */
out32(GPIO0_ISR1H, isr1h_reg | 0xC0003000); /* input select */
out32(GPIO0_TCR, tcr_reg & ~0x80400000); /* select input */
udelay(1000); /* wait some time before reading input */
value = in32(GPIO0_IR) & 0x80400000; /* get config bits */
/*
* Restore GPIO settings
*/
out32(GPIO0_OSRH, osrh_reg); /* output select */
out32(GPIO0_ISR1H, isr1h_reg); /* input select */
out32(GPIO0_TCR, tcr_reg); /* enable output driver for outputs */
if (value & 0x80000000) {
/* Revision 1.0 or 1.1 detected */
return 0x0101;
} else {
if (value & 0x00400000) {
/* unused */
return 0x0103;
} else {
/* Revision >= 2.0 detected */
/* rev. 2.x uses four SM501 GPIOs for revision coding */
return 0x0200;
}
}
}
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, CFG_UIC0_POLARITY);/* 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)
{
DECLARE_GLOBAL_DATA_PTR;
volatile unsigned short *fpga_ctrl =
(unsigned short *)((ulong)CFG_FPGA_BASE_ADDR + CFG_FPGA_CTRL);
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;
unsigned long contrast0 = 0xffffffff;
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 */
/*
* Write Board revision into FPGA
*/
*fpga_ctrl |= gd->board_type & 0x0003;
if (gd->board_type >= 0x0200) {
*fpga_ctrl |= CFG_FPGA_CTRL_CF_BUS_EN;
}
/*
* Setup and enable EEPROM write protection
*/
out32(GPIO0_OR, in32(GPIO0_OR) | CFG_EEPROM_WP);
/*
* 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);
/*
* Reset touch-screen controller
*/
out32(GPIO0_OR, in32(GPIO0_OR) & ~CFG_TOUCH_RST);
udelay(1000);
out32(GPIO0_OR, in32(GPIO0_OR) | CFG_TOUCH_RST);
/*
* Enable power on PS/2 interface (with reset)
*/
*fpga_ctrl &= ~(CFG_FPGA_CTRL_PS2_PWR);
for (i=0;i<500;i++)
udelay(1000);
*fpga_ctrl |= (CFG_FPGA_CTRL_PS2_PWR);
/*
* Get contrast value from environment variable
*/
str = getenv("contrast0");
if (str) {
contrast0 = simple_strtol(str, NULL, 16);
if (contrast0 > 255) {
printf("ERROR: contrast0 value too high (0x%lx)!\n", contrast0);
contrast0 = 0;
}
}
/*
* Init lcd interface and display logo
*/
str = getenv("bd_type");
if (strcmp(str, "ppc230") == 0) {
/*
* Switch backlight on
*/
*fpga_ctrl |= CFG_FPGA_CTRL_VGA0_BL;
*lcd_backlight = 0x0000;
lcd_setup(1, 0);
lcd_init((uchar *)CFG_LCD_BIG_REG, (uchar *)CFG_LCD_BIG_MEM,
regs_13806_1024_768_8bpp,
sizeof(regs_13806_1024_768_8bpp)/sizeof(regs_13806_1024_768_8bpp[0]),
logo_bmp_1024, sizeof(logo_bmp_1024));
} else if (strcmp(str, "ppc220") == 0) {
/*
* Switch backlight on
*/
*fpga_ctrl &= ~CFG_FPGA_CTRL_VGA0_BL;
*lcd_backlight = 0x0000;
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 if (strcmp(str, "ppc215") == 0) {
/*
* Set default display contrast voltage
*/
if (contrast0 == 0xffffffff) {
*lcd_contrast = 0x0082;
} else {
*lcd_contrast = contrast0;
}
*lcd_backlight = 0xffff;
/*
* Switch backlight on
*/
*fpga_ctrl |= CFG_FPGA_CTRL_VGA0_BL | CFG_FPGA_CTRL_VGA0_BL_MODE;
/*
* Set lcd clock (small epson)
*/
*fpga_ctrl |= LCD_CLK_06250;
udelay(100); /* wait for 100 us */
lcd_setup(0, 1);
lcd_init((uchar *)CFG_LCD_SMALL_REG, (uchar *)CFG_LCD_SMALL_MEM,
regs_13705_320_240_8bpp,
sizeof(regs_13705_320_240_8bpp)/sizeof(regs_13705_320_240_8bpp[0]),
logo_bmp_320_8bpp, sizeof(logo_bmp_320_8bpp));
} else if (strcmp(str, "ppc210") == 0) {
/*
* Set default display contrast voltage
*/
if (contrast0 == 0xffffffff) {
*lcd_contrast = 0x0060;
} else {
*lcd_contrast = contrast0;
}
*lcd_backlight = 0xffff;
/*
* Switch backlight on
*/
*fpga_ctrl |= CFG_FPGA_CTRL_VGA0_BL | CFG_FPGA_CTRL_VGA0_BL_MODE;
/*
* Set lcd clock (small epson)
*/
*fpga_ctrl |= LCD_CLK_08330;
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));
#ifdef CONFIG_VIDEO_SM501
} else {
pci_dev_t devbusfn;
/*
* Is SM501 connected (ppc221/ppc231)?
*/
devbusfn = pci_find_device(PCI_VENDOR_SM, PCI_DEVICE_SM501, 0);
if (devbusfn != -1) {
puts("VGA: SM501 with 8 MB ");
if (strcmp(str, "ppc221") == 0) {
printf("(800*600, %dbpp)\n", BPP);
} else if (strcmp(str, "ppc231") == 0) {
printf("(1024*768, %dbpp)\n", BPP);
} else {
printf("Unsupported bd_type defined (%s) -> No display configured!\n", str);
return 0;
}
} else {
printf("Unsupported bd_type defined (%s) -> No display configured!\n", str);
return 0;
}
#endif /* CONFIG_VIDEO_SM501 */
}
return (0);
}
/*
* Check Board Identity:
*/
int checkboard (void)
{
DECLARE_GLOBAL_DATA_PTR;
unsigned char str[64];
int i = getenv_r ("serial#", str, sizeof(str));
puts ("Board: ");
if (i == -1) {
puts ("### No HW ID - assuming HH405");
} else {
puts(str);
}
if (getenv_r("bd_type", str, sizeof(str)) != -1) {
printf(" (%s", str);
} else {
puts(" (Missing bd_type!");
}
gd->board_type = board_revision();
printf(", Rev %ld.%ld)\n",
(gd->board_type >> 8) & 0xff,
gd->board_type & 0xff);
/*
* 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
#if defined(CFG_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 (CFG_I2C_EEPROM_ADDR != dev_addr) {
return -1;
} else {
switch (state) {
case 1:
/* Enable write access, clear bit GPIO_SINT2. */
out32(GPIO0_OR, in32(GPIO0_OR) & ~CFG_EEPROM_WP);
state = 0;
break;
case 0:
/* Disable write access, set bit GPIO_SINT2. */
out32(GPIO0_OR, in32(GPIO0_OR) | CFG_EEPROM_WP);
state = 0;
break;
default:
/* Read current status back. */
state = (0 == (in32(GPIO0_OR) & CFG_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 (CFG_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",
CFG_I2C_EEPROM_ADDR, state ? "en" : "dis");
state = 0;
}
} else {
if ('0' == argv[1][0]) {
/* Disable write access. */
state = eeprom_write_enable (CFG_I2C_EEPROM_ADDR, 0);
} else {
/* Enable write access. */
state = eeprom_write_enable (CFG_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(CFG_EEPROM_WREN) */
#ifdef CONFIG_VIDEO_SM501
#ifdef CONFIG_CONSOLE_EXTRA_INFO
/*
* Return text to be printed besides the logo.
*/
void video_get_info_str (int line_number, char *info)
{
DECLARE_GLOBAL_DATA_PTR;
char str[64];
char str2[64];
int i = getenv_r("serial#", str2, sizeof(str));
if (line_number == 1) {
sprintf(str, " Board: ");
if (i == -1) {
strcat(str, "### No HW ID - assuming HH405");
} else {
strcat(str, str2);
}
if (getenv_r("bd_type", str2, sizeof(str2)) != -1) {
strcat(str, " (");
strcat(str, str2);
} else {
strcat(str, " (Missing bd_type!");
}
sprintf(str2, ", Rev %ld.%ld)",
(gd->board_type >> 8) & 0xff, gd->board_type & 0xff);
strcat(str, str2);
strcpy(info, str);
} else {
info [0] = '\0';
}
}
#endif /* CONFIG_CONSOLE_EXTRA_INFO */
/*
* Returns SM501 register base address. First thing called in the driver.
*/
unsigned int board_video_init (void)
{
pci_dev_t devbusfn;
u32 addr;
/*
* Is SM501 connected (ppc221/ppc231)?
*/
devbusfn = pci_find_device(PCI_VENDOR_SM, PCI_DEVICE_SM501, 0);
if (devbusfn != -1) {
pci_read_config_dword(devbusfn, PCI_BASE_ADDRESS_1, (u32 *)&addr);
return (addr & 0xfffffffe);
}
return 0;
}
/*
* Returns SM501 framebuffer address
*/
unsigned int board_video_get_fb (void)
{
pci_dev_t devbusfn;
u32 addr;
/*
* Is SM501 connected (ppc221/ppc231)?
*/
devbusfn = pci_find_device(PCI_VENDOR_SM, PCI_DEVICE_SM501, 0);
if (devbusfn != -1) {
pci_read_config_dword(devbusfn, PCI_BASE_ADDRESS_0, (u32 *)&addr);
return (addr & 0xfffffffe);
}
return 0;
}
/*
* Called after initializing the SM501 and before clearing the screen.
*/
void board_validate_screen (unsigned int base)
{
}
/*
* Return a pointer to the initialization sequence.
*/
const SMI_REGS *board_get_regs (void)
{
char *str;
str = getenv("bd_type");
if (strcmp(str, "ppc221") == 0) {
return init_regs_800x600;
} else {
return init_regs_1024x768;
}
}
int board_get_width (void)
{
char *str;
str = getenv("bd_type");
if (strcmp(str, "ppc221") == 0) {
return 800;
} else {
return 1024;
}
}
int board_get_height (void)
{
char *str;
str = getenv("bd_type");
if (strcmp(str, "ppc221") == 0) {
return 600;
} else {
return 768;
}
}
#endif /* CONFIG_VIDEO_SM501 */
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