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-rw-r--r--board/eltec/mhpc/mhpc.c477
1 files changed, 477 insertions, 0 deletions
diff --git a/board/eltec/mhpc/mhpc.c b/board/eltec/mhpc/mhpc.c
new file mode 100644
index 0000000..81f820a
--- /dev/null
+++ b/board/eltec/mhpc/mhpc.c
@@ -0,0 +1,477 @@
+/*
+ * (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);
+}
+
+/* ------------------------------------------------------------------------- */
generated by cgit v1.1 at 2024-11-23 19:37:16 +0000