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upstream u-boot with additional patches for our devices/boards: https://lists.denx.de/pipermail/u-boot/2017-March/282789.html (AXP crashes) ; Gbit ethernet patch for some LIME2 revisions ; with SPI flash support
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u-boot/board/eltec/mhpc/mhpc.c

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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_pre_init (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, (char*)&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, (char*)&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 = MAMR_GPL_B4DIS;
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 = getenv ("clut")) != NULL)
clut = (u_int)simple_strtoul (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);
}
/* ------------------------------------------------------------------------- */