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uboot-1.1.4-kirkwood/board/eltec/mhpc/mhpc.c
Olaf Rempel f69754bccc u-boot 1.1.4
2024-01-07 23:57:24 +01:00

484 lines
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/*
* (C) Copyright 2001
* ELTEC Elektronik AG
* Frank Gottschling <fgottschling@eltec.de>
*
* Board specific routines for the miniHiPerCam
*
* - initialisation (eeprom)
* - memory controller
* - serial io initialisation
* - ethernet io initialisation
*
* -----------------------------------------------------------------
* 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 <linux/ctype.h>
#include <commproc.h>
#include "mpc8xx.h"
#include <video_fb.h>
/* imports from common/main.c */
extern char console_buffer[CFG_CBSIZE];
extern void eeprom_init (void);
extern int eeprom_read (unsigned dev_addr, unsigned offset,
unsigned char *buffer, unsigned cnt);
extern int eeprom_write (unsigned dev_addr, unsigned offset,
unsigned char *buffer, unsigned cnt);
/* globals */
void *video_hw_init (void);
void video_set_lut (unsigned int index, /* color number */
unsigned char r, /* red */
unsigned char g, /* green */
unsigned char b /* blue */
);
GraphicDevice gdev;
/* locals */
static void video_circle (char *center, int radius, int color, int pitch);
static void video_test_image (void);
static void video_default_lut (unsigned int clut_type);
/* revision info foer MHPC EEPROM offset 480 */
typedef struct {
char board[12]; /* 000 - Board Revision information */
char sensor; /* 012 - Sensor Type information */
char serial[8]; /* 013 - Board serial number */
char etheraddr[6]; /* 021 - Ethernet node addresse */
char revision[2]; /* 027 - Revision code */
char option[3]; /* 029 - resevered for options */
} revinfo;
/* ------------------------------------------------------------------------- */
static const unsigned int sdram_table[] = {
/* read single beat cycle */
0xef0efc04, 0x0e2dac04, 0x01ba5c04, 0x1ff5fc00,
0xfffffc05, 0xeffafc34, 0x0ff0bc34, 0x1ff57c35,
/* read burst cycle */
0xef0efc04, 0x0e3dac04, 0x10ff5c04, 0xf0fffc00,
0xf0fffc00, 0xf1fffc00, 0xfffffc00, 0xfffffc05,
0xfffffc04, 0xfffffc04, 0xfffffc04, 0xfffffc04,
0xfffffc04, 0xfffffc04, 0xfffffc04, 0xfffffc04,
/* write single beat cycle */
0xef0efc04, 0x0e29ac00, 0x01b25c04, 0x1ff5fc05,
0xfffffc04, 0xfffffc04, 0xfffffc04, 0xfffffc04,
/* write burst cycle */
0xef0ef804, 0x0e39a000, 0x10f75000, 0xf0fff440,
0xf0fffc40, 0xf1fffc04, 0xfffffc05, 0xfffffc04,
0xfffffc04, 0xfffffc04, 0xfffffc04, 0xfffffc04,
0xfffffc04, 0xfffffc04, 0xfffffc04, 0xfffffc04,
/* periodic timer expired */
0xeffebc84, 0x1ffd7c04, 0xfffffc04, 0xfffffc84,
0xeffebc04, 0x1ffd7c04, 0xfffffc04, 0xfffffc05,
0xfffffc04, 0xfffffc04, 0xfffffc04, 0xfffffc04,
/* exception */
0xfffffc04, 0xfffffc05, 0xfffffc04, 0xfffffc04
};
/* ------------------------------------------------------------------------- */
int board_early_init_f (void)
{
volatile immap_t *im = (immap_t *) CFG_IMMR;
volatile cpm8xx_t *cp = &(im->im_cpm);
volatile iop8xx_t *ip = (iop8xx_t *) & (im->im_ioport);
/* reset the port A s.a. cpm-routines */
ip->iop_padat = 0x0000;
ip->iop_papar = 0x0000;
ip->iop_padir = 0x0800;
ip->iop_paodr = 0x0000;
/* reset the port B for digital and LCD output */
cp->cp_pbdat = 0x0300;
cp->cp_pbpar = 0x5001;
cp->cp_pbdir = 0x5301;
cp->cp_pbodr = 0x0000;
/* reset the port C configured for SMC1 serial port and aqc. control */
ip->iop_pcdat = 0x0800;
ip->iop_pcpar = 0x0000;
ip->iop_pcdir = 0x0e30;
ip->iop_pcso = 0x0000;
/* Config port D for LCD output */
ip->iop_pdpar = 0x1fff;
ip->iop_pddir = 0x1fff;
return (0);
}
/* ------------------------------------------------------------------------- */
/*
* Check Board Identity
*/
int checkboard (void)
{
puts ("Board: ELTEC miniHiperCam\n");
return (0);
}
/* ------------------------------------------------------------------------- */
int misc_init_r (void)
{
revinfo mhpcRevInfo;
char nid[32];
char *mhpcSensorTypes[] = { "OMNIVISON OV7610/7620 color",
"OMNIVISON OV7110 b&w", NULL
};
char hex[23] = { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 0, 0,
0, 0, 0, 0, 10, 11, 12, 13, 14, 15
};
int i;
/* check revision data */
eeprom_read (CFG_I2C_EEPROM_ADDR, 480, (uchar *) &mhpcRevInfo, 32);
if (strncmp ((char *) &mhpcRevInfo.board[2], "MHPC", 4) != 0) {
printf ("Enter revision number (0-9): %c ",
mhpcRevInfo.revision[0]);
if (0 != readline (NULL)) {
mhpcRevInfo.revision[0] =
(char) toupper (console_buffer[0]);
}
printf ("Enter revision character (A-Z): %c ",
mhpcRevInfo.revision[1]);
if (1 == readline (NULL)) {
mhpcRevInfo.revision[1] =
(char) toupper (console_buffer[0]);
}
printf ("Enter board name (V-XXXX-XXXX): %s ",
(char *) &mhpcRevInfo.board);
if (11 == readline (NULL)) {
for (i = 0; i < 11; i++) {
mhpcRevInfo.board[i] =
(char) toupper (console_buffer[i]);
mhpcRevInfo.board[11] = '\0';
}
}
printf ("Supported sensor types:\n");
i = 0;
do {
printf ("\n \'%d\' : %s\n", i, mhpcSensorTypes[i]);
} while (mhpcSensorTypes[++i] != NULL);
do {
printf ("\nEnter sensor number (0-255): %d ",
(int) mhpcRevInfo.sensor);
if (0 != readline (NULL)) {
mhpcRevInfo.sensor =
(unsigned char)
simple_strtoul (console_buffer, NULL,
10);
}
} while (mhpcRevInfo.sensor >= i);
printf ("Enter serial number: %s ",
(char *) &mhpcRevInfo.serial);
if (6 == readline (NULL)) {
for (i = 0; i < 6; i++) {
mhpcRevInfo.serial[i] = console_buffer[i];
}
mhpcRevInfo.serial[6] = '\0';
}
printf ("Enter ether node ID with leading zero (HEX): %02x%02x%02x%02x%02x%02x ", mhpcRevInfo.etheraddr[0], mhpcRevInfo.etheraddr[1], mhpcRevInfo.etheraddr[2], mhpcRevInfo.etheraddr[3], mhpcRevInfo.etheraddr[4], mhpcRevInfo.etheraddr[5]);
if (12 == readline (NULL)) {
for (i = 0; i < 12; i += 2) {
mhpcRevInfo.etheraddr[i >> 1] =
(char) (16 *
hex[toupper
(console_buffer[i]) -
'0'] +
hex[toupper
(console_buffer[i + 1]) -
'0']);
}
}
/* setup new revision data */
eeprom_write (CFG_I2C_EEPROM_ADDR, 480, (uchar *) &mhpcRevInfo,
32);
}
/* set environment */
sprintf (nid, "%02x:%02x:%02x:%02x:%02x:%02x",
mhpcRevInfo.etheraddr[0], mhpcRevInfo.etheraddr[1],
mhpcRevInfo.etheraddr[2], mhpcRevInfo.etheraddr[3],
mhpcRevInfo.etheraddr[4], mhpcRevInfo.etheraddr[5]);
setenv ("ethaddr", nid);
/* print actual board identification */
printf ("Ident: %s %s Ser %s Rev %c%c\n",
mhpcRevInfo.board,
(mhpcRevInfo.sensor == 0 ? "color" : "b&w"),
(char *) &mhpcRevInfo.serial, mhpcRevInfo.revision[0],
mhpcRevInfo.revision[1]);
return (0);
}
/* ------------------------------------------------------------------------- */
long int initdram (int board_type)
{
volatile immap_t *immap = (immap_t *) CFG_IMMR;
volatile memctl8xx_t *memctl = &immap->im_memctl;
upmconfig (UPMA, (uint *) sdram_table,
sizeof (sdram_table) / sizeof (uint));
memctl->memc_mamr = CFG_MAMR & (~(MAMR_PTAE)); /* no refresh yet */
memctl->memc_mbmr = MBMR_GPL_B4DIS; /* should this be mamr? - NTL */
memctl->memc_mptpr = MPTPR_PTP_DIV64;
memctl->memc_mar = 0x00008800;
/*
* Map controller SDRAM bank 0
*/
memctl->memc_or1 = CFG_OR1_PRELIM;
memctl->memc_br1 = CFG_BR1_PRELIM;
udelay (200);
/*
* Map controller SDRAM bank 1
*/
memctl->memc_or2 = CFG_OR2;
memctl->memc_br2 = CFG_BR2;
/*
* Perform SDRAM initializsation sequence
*/
memctl->memc_mcr = 0x80002105; /* SDRAM bank 0 */
udelay (1);
memctl->memc_mcr = 0x80002730; /* SDRAM bank 0 - execute twice */
udelay (1);
memctl->memc_mamr |= MAMR_PTAE; /* enable refresh */
udelay (10000);
/* leave place for framebuffers */
return (SDRAM_MAX_SIZE - SDRAM_RES_SIZE);
}
/* ------------------------------------------------------------------------- */
static void video_circle (char *center, int radius, int color, int pitch)
{
int x, y, d, dE, dSE;
x = 0;
y = radius;
d = 1 - radius;
dE = 3;
dSE = -2 * radius + 5;
*(center + x + y * pitch) = color;
*(center + y + x * pitch) = color;
*(center + y - x * pitch) = color;
*(center + x - y * pitch) = color;
*(center - x - y * pitch) = color;
*(center - y - x * pitch) = color;
*(center - y + x * pitch) = color;
*(center - x + y * pitch) = color;
while (y > x) {
if (d < 0) {
d += dE;
dE += 2;
dSE += 2;
x++;
} else {
d += dSE;
dE += 2;
dSE += 4;
x++;
y--;
}
*(center + x + y * pitch) = color;
*(center + y + x * pitch) = color;
*(center + y - x * pitch) = color;
*(center + x - y * pitch) = color;
*(center - x - y * pitch) = color;
*(center - y - x * pitch) = color;
*(center - y + x * pitch) = color;
*(center - x + y * pitch) = color;
}
}
/* ------------------------------------------------------------------------- */
static void video_test_image (void)
{
char *di;
int i, n;
/* draw raster */
for (i = 0; i < LCD_VIDEO_ROWS; i += 32) {
memset ((char *) (LCD_VIDEO_ADDR + i * LCD_VIDEO_COLS),
LCD_VIDEO_FG, LCD_VIDEO_COLS);
for (n = i + 1; n < i + 32; n++)
memset ((char *) (LCD_VIDEO_ADDR +
n * LCD_VIDEO_COLS), LCD_VIDEO_BG,
LCD_VIDEO_COLS);
}
for (i = 0; i < LCD_VIDEO_COLS; i += 32) {
for (n = 0; n < LCD_VIDEO_ROWS; n++)
*(char *) (LCD_VIDEO_ADDR + n * LCD_VIDEO_COLS + i) =
LCD_VIDEO_FG;
}
/* draw gray bar */
di = (char *) (LCD_VIDEO_ADDR + (LCD_VIDEO_COLS - 256) / 64 * 32 +
97 * LCD_VIDEO_COLS);
for (n = 0; n < 63; n++) {
for (i = 0; i < 256; i++) {
*di++ = (char) i;
*(di + LCD_VIDEO_COLS * 64) = (i & 1) * 255;
}
di += LCD_VIDEO_COLS - 256;
}
video_circle ((char *) LCD_VIDEO_ADDR + LCD_VIDEO_COLS / 2 +
LCD_VIDEO_ROWS / 2 * LCD_VIDEO_COLS, LCD_VIDEO_ROWS / 2,
LCD_VIDEO_FG, LCD_VIDEO_COLS);
}
/* ------------------------------------------------------------------------- */
static void video_default_lut (unsigned int clut_type)
{
unsigned int i;
unsigned char RGB[] = {
0x00, 0x00, 0x00, /* black */
0x80, 0x80, 0x80, /* gray */
0xff, 0x00, 0x00, /* red */
0x00, 0xff, 0x00, /* green */
0x00, 0x00, 0xff, /* blue */
0x00, 0xff, 0xff, /* cyan */
0xff, 0x00, 0xff, /* magenta */
0xff, 0xff, 0x00, /* yellow */
0x80, 0x00, 0x00, /* dark red */
0x00, 0x80, 0x00, /* dark green */
0x00, 0x00, 0x80, /* dark blue */
0x00, 0x80, 0x80, /* dark cyan */
0x80, 0x00, 0x80, /* dark magenta */
0x80, 0x80, 0x00, /* dark yellow */
0xc0, 0xc0, 0xc0, /* light gray */
0xff, 0xff, 0xff, /* white */
};
switch (clut_type) {
case 1:
for (i = 0; i < 240; i++)
video_set_lut (i, i, i, i);
for (i = 0; i < 16; i++)
video_set_lut (i + 240, RGB[i * 3], RGB[i * 3 + 1],
RGB[i * 3 + 2]);
break;
default:
for (i = 0; i < 256; i++)
video_set_lut (i, i, i, i);
}
}
/* ------------------------------------------------------------------------- */
void *video_hw_init (void)
{
unsigned int clut = 0;
unsigned char *penv;
immap_t *immr = (immap_t *) CFG_IMMR;
/* enable video only on CLUT value */
if ((penv = (uchar *)getenv ("clut")) != NULL)
clut = (u_int) simple_strtoul ((char *)penv, NULL, 10);
else
return NULL;
/* disable graphic before write LCD regs. */
immr->im_lcd.lcd_lccr = 0x96000866;
/* config LCD regs. */
immr->im_lcd.lcd_lcfaa = LCD_VIDEO_ADDR;
immr->im_lcd.lcd_lchcr = 0x010a0093;
immr->im_lcd.lcd_lcvcr = 0x900f0024;
printf ("Video: 640x480 8Bit Index Lut %s\n",
(clut == 1 ? "240/16 (gray/vga)" : "256(gray)"));
video_default_lut (clut);
/* clear framebuffer */
memset ((char *) (LCD_VIDEO_ADDR), LCD_VIDEO_BG,
LCD_VIDEO_ROWS * LCD_VIDEO_COLS);
/* enable graphic */
immr->im_lcd.lcd_lccr = 0x96000867;
/* fill in Graphic Device */
gdev.frameAdrs = LCD_VIDEO_ADDR;
gdev.winSizeX = LCD_VIDEO_COLS;
gdev.winSizeY = LCD_VIDEO_ROWS;
gdev.gdfBytesPP = 1;
gdev.gdfIndex = GDF__8BIT_INDEX;
if (clut > 1)
/* return Graphic Device for console */
return (void *) &gdev;
else
/* just graphic enabled - draw something beautiful */
video_test_image ();
return NULL; /* this disabels cfb - console */
}
/* ------------------------------------------------------------------------- */
void video_set_lut (unsigned int index,
unsigned char r, unsigned char g, unsigned char b)
{
unsigned int lum;
unsigned short *pLut = (unsigned short *) (CFG_IMMR + 0x0e00);
/* 16 bit lut values, 12 bit used, xxxx BBGG RRii iiii */
/* y = 0.299*R + 0.587*G + 0.114*B */
lum = (2990 * r + 5870 * g + 1140 * b) / 10000;
pLut[index] =
((b & 0xc0) << 4) | ((g & 0xc0) << 2) | (r & 0xc0) | (lum &
0x3f);
}
/* ------------------------------------------------------------------------- */
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