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u-boot/board/esd/ar405/ar405.c
Stefan Roese bbeff30cbd ppc4xx: Remove superfluous dram_init() call or replace it by initdram() 
Historically the 405 U-Boot port had a dram_init() call in early init
stage. This function was still called from start.S and most of the time
coded in assembler. This is not needed anymore (since a long time) and
boards should implement the common initdram() function in C instead.

This patch now removed the dram_init() call from start.S and removes the
empty implementations that are scattered through most of the 405 board
ports. Some older board ports really implement this dram_init() though.
These are:

csb272
csb472
ERIC
EXBITGEN
W7OLMC
W7OLMG

I changed those boards to call this assembler dram_init() function now
from their board specific initdram() instead. This *should* work, but please
test again on those platforms. And it is perhaps a good idea that those
boards use some common 405 SDRAM initialization code from cpu/ppc4xx at
some time. So further patches welcome here.

Signed-off-by: Stefan Roese <sr@denx.de>
2008-06-03 20:22:19 +02:00

414 lines
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/*
* (C) Copyright 2001-2004
* 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 "ar405.h"
#include <asm/processor.h>
#include <command.h>
DECLARE_GLOBAL_DATA_PTR;
/*cmd_boot.c*/
extern int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
extern void lxt971_no_sleep(void);
/* ------------------------------------------------------------------------- */
#if 0
#define FPGA_DEBUG
#endif
/* fpga configuration data - generated by bin2cc */
const unsigned char fpgadata[] = {
#include "fpgadata.c"
};
const unsigned char fpgadata_xl30[] = {
#include "fpgadata_xl30.c"
};
/*
* include common fpga code (for esd boards)
*/
#include "../common/fpga.c"
int board_early_init_f (void)
{
int index, len, i;
int status;
#ifdef FPGA_DEBUG
/* set up serial port with default baudrate */
(void) get_clocks ();
gd->baudrate = CONFIG_BAUDRATE;
serial_init ();
console_init_f ();
#endif
/*
* Boot onboard FPGA
*/
/* first try 40er image */
gd->board_type = 40;
status = fpga_boot ((unsigned char *) fpgadata, sizeof (fpgadata));
if (status != 0) {
/* try xl30er image */
gd->board_type = 30;
status = fpga_boot ((unsigned char *) fpgadata_xl30, sizeof (fpgadata_xl30));
if (status != 0) {
/* booting FPGA failed */
#ifndef FPGA_DEBUG
/* set up serial port with default baudrate */
(void) get_clocks ();
gd->baudrate = CONFIG_BAUDRATE;
serial_init ();
console_init_f ();
#endif
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 = fpgadata[index];
printf ("FPGA: %s\n", &(fpgadata[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);
}
}
/*
* 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) CAN1; active low; level sensitive
* IRQ 27 (EXT IRQ 2) PCI SLOT 0; active low; level sensitive
* IRQ 28 (EXT IRQ 3) PCI SLOT 1; active low; level sensitive
* IRQ 29 (EXT IRQ 4) PCI SLOT 2; active low; level sensitive
* IRQ 30 (EXT IRQ 5) PCI SLOT 3; 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, 0xFFFFFF81); /* 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 */
*(ushort *) 0xf03000ec = 0x0fff; /* enable all interrupts in fpga */
return 0;
}
/* ------------------------------------------------------------------------- */
/*
* Check Board Identity:
*/
int checkboard (void)
{
int index;
int len;
char str[64];
int i = getenv_r ("serial#", str, sizeof (str));
const unsigned char *fpga;
puts ("Board: ");
if (i == -1) {
puts ("### No HW ID - assuming AR405");
} else {
puts(str);
}
puts ("\nFPGA: ");
/* display infos on fpgaimage */
if (gd->board_type == 30) {
fpga = fpgadata_xl30;
} else {
fpga = fpgadata;
}
index = 15;
for (i = 0; i < 4; i++) {
len = fpga[index];
printf ("%s ", &(fpga[index + 1]));
index += len + 3;
}
putc ('\n');
/*
* Disable sleep mode in LXT971
*/
lxt971_no_sleep();
return 0;
}
#if 1 /* test-only: some internal test routines... */
/*
* Some test routines
*/
int do_digtest(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
{
volatile uchar *digen = (volatile uchar *)0xf03000b4;
volatile ushort *digout = (volatile ushort *)0xf03000b0;
volatile ushort *digin = (volatile ushort *)0xf03000a0;
int i;
int k;
int start;
int end;
if (argc != 3) {
puts("Usage: digtest n_start n_end (digtest 0 7)\n");
return 0;
}
start = simple_strtol (argv[1], NULL, 10);
end = simple_strtol (argv[2], NULL, 10);
/*
* Enable digital outputs
*/
*digen = 0x08;
printf("\nStarting digital In-/Out Test from I/O %d to %d (Cntrl-C to abort)...\n",
start, end);
/*
* Set outputs one by one
*/
for (;;) {
for (i=start; i<=end; i++) {
*digout = 0x0001 << i;
for (k=0; k<200; k++)
udelay(1000);
if (*digin != (0x0001 << i)) {
printf("ERROR: OUT=0x%04X, IN=0x%04X\n", 0x0001 << i, *digin);
return 0;
}
/* Abort if ctrl-c was pressed */
if (ctrlc()) {
puts("\nAbort\n");
return 0;
}
}
}
return 0;
}
U_BOOT_CMD(
digtest, 3, 1, do_digtest,
"digtest - Test digital in-/output\n",
NULL
);
#define ERROR_DELTA 256
struct io {
volatile short val;
short dummy;
};
int do_anatest(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
{
volatile short val;
int i;
int volt;
struct io *out;
struct io *in;
out = (struct io *)0xf0300090;
in = (struct io *)0xf0300000;
i = simple_strtol (argv[1], NULL, 10);
volt = 0;
printf("Setting Channel %d to %dV...\n", i, volt);
out[i].val = (volt * 0x7fff) / 10;
udelay(10000);
val = in[i*2].val;
printf("-> InChannel %d: 0x%04x=%dV\n", i*2, val, (val * 4000) / 0x7fff);
if ((val < ((volt * 0x7fff) / 40) - ERROR_DELTA) ||
(val > ((volt * 0x7fff) / 40) + ERROR_DELTA)) {
printf("ERROR! (min=0x%04x max=0x%04x)\n", ((volt * 0x7fff) / 40) - ERROR_DELTA,
((volt * 0x7fff) / 40) + ERROR_DELTA);
return -1;
}
val = in[i*2+1].val;
printf("-> InChannel %d: 0x%04x=%dV\n", i*2+1, val, (val * 4000) / 0x7fff);
if ((val < ((volt * 0x7fff) / 40) - ERROR_DELTA) ||
(val > ((volt * 0x7fff) / 40) + ERROR_DELTA)) {
printf("ERROR! (min=0x%04x max=0x%04x)\n", ((volt * 0x7fff) / 40) - ERROR_DELTA,
((volt * 0x7fff) / 40) + ERROR_DELTA);
return -1;
}
volt = 5;
printf("Setting Channel %d to %dV...\n", i, volt);
out[i].val = (volt * 0x7fff) / 10;
udelay(10000);
val = in[i*2].val;
printf("-> InChannel %d: 0x%04x=%dV\n", i*2, val, (val * 4000) / 0x7fff);
if ((val < ((volt * 0x7fff) / 40) - ERROR_DELTA) ||
(val > ((volt * 0x7fff) / 40) + ERROR_DELTA)) {
printf("ERROR! (min=0x%04x max=0x%04x)\n", ((volt * 0x7fff) / 40) - ERROR_DELTA,
((volt * 0x7fff) / 40) + ERROR_DELTA);
return -1;
}
val = in[i*2+1].val;
printf("-> InChannel %d: 0x%04x=%dV\n", i*2+1, val, (val * 4000) / 0x7fff);
if ((val < ((volt * 0x7fff) / 40) - ERROR_DELTA) ||
(val > ((volt * 0x7fff) / 40) + ERROR_DELTA)) {
printf("ERROR! (min=0x%04x max=0x%04x)\n", ((volt * 0x7fff) / 40) - ERROR_DELTA,
((volt * 0x7fff) / 40) + ERROR_DELTA);
return -1;
}
volt = 10;
printf("Setting Channel %d to %dV...\n", i, volt);
out[i].val = (volt * 0x7fff) / 10;
udelay(10000);
val = in[i*2].val;
printf("-> InChannel %d: 0x%04x=%dV\n", i*2, val, (val * 4000) / 0x7fff);
if ((val < ((volt * 0x7fff) / 40) - ERROR_DELTA) ||
(val > ((volt * 0x7fff) / 40) + ERROR_DELTA)) {
printf("ERROR! (min=0x%04x max=0x%04x)\n", ((volt * 0x7fff) / 40) - ERROR_DELTA,
((volt * 0x7fff) / 40) + ERROR_DELTA);
return -1;
}
val = in[i*2+1].val;
printf("-> InChannel %d: 0x%04x=%dV\n", i*2+1, val, (val * 4000) / 0x7fff);
if ((val < ((volt * 0x7fff) / 40) - ERROR_DELTA) ||
(val > ((volt * 0x7fff) / 40) + ERROR_DELTA)) {
printf("ERROR! (min=0x%04x max=0x%04x)\n", ((volt * 0x7fff) / 40) - ERROR_DELTA,
((volt * 0x7fff) / 40) + ERROR_DELTA);
return -1;
}
printf("Channel %d OK!\n", i);
return 0;
}
U_BOOT_CMD(
anatest, 2, 1, do_anatest,
"anatest - Test analog in-/output\n",
NULL
);
int counter = 0;
void cyclicInt(void *ptr)
{
*(ushort *)0xf03000e8 = 0x0800; /* ack int */
counter++;
}
int do_inctest(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
{
volatile uchar *digout = (volatile uchar *)0xf03000b4;
volatile ulong *incin;
int i;
incin = (volatile ulong *)0xf0300040;
/*
* Clear inc counter
*/
incin[0] = 0;
incin[1] = 0;
incin[2] = 0;
incin[3] = 0;
incin = (volatile ulong *)0xf0300050;
/*
* Inc a little
*/
for (i=0; i<10000; i++) {
switch (i & 0x03) {
case 0:
*digout = 0x02;
break;
case 1:
*digout = 0x03;
break;
case 2:
*digout = 0x01;
break;
case 3:
*digout = 0x00;
break;
}
udelay(10);
}
printf("Inc 0 = %ld\n", incin[0]);
printf("Inc 1 = %ld\n", incin[1]);
printf("Inc 2 = %ld\n", incin[2]);
printf("Inc 3 = %ld\n", incin[3]);
*(ushort *)0xf03000e0 = 0x0c80-1; /* set counter */
*(ushort *)0xf03000ec |= 0x0800; /* enable int */
irq_install_handler (30, (interrupt_handler_t *) cyclicInt, NULL);
printf("counter=%d\n", counter);
return 0;
}
U_BOOT_CMD(
inctest, 3, 1, do_inctest,
"inctest - Test incremental encoder inputs\n",
NULL
);
#endif
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