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Initial revision

master
wdenk 2002-11-02 23:30:20 +00:00
parent 7ebf7443ad
commit e221174377
38 changed files with 10205 additions and 0 deletions
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69
board/hymod/global_env Normal file
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# format of this file is:
#
# 1. blank lines and lines beginning with '#' are ignored
# 2. all other lines must have the form <name>=<value>
# 3. if a percent appears anywhere, it is replaced like so:
#
# %s serial number of the main board (10 digit zero filled)
# %S serial number of the main board (plain number)
# %% a percentage character
#
# no whitespace is removed in either <name> or <value>
#
# if first character in <name> is a dash ('-'), then an existing env var
# will not be overwritten (the dash is removed).
#
# if last character in <name> is a plus ('+'), then <value> will be appended
# to any existing env var (the plus is removed). Duplicates of <value> are
# removed.
#
# set the ip address based on the main board serial number
ipaddr=192.168.1.%S
serverip=192.168.1.254
# stop auto execute after tftp
autostart=no
#
# 16M flash map, 64 x 256K sectors, mapped at address 0x40000000
#
# sector 0: boot
# sector 1: non volatile environment
# sectors 2-4: linux kernel image
# sectors 5-7: alternate linux kernel image
# sectors 8-63: linux initial ramdisk image
#
fetchboot=tftp 100000 /hymod/u-boot.bin
eraseboot=protect off 1:0 ; erase 1:0 ; protect on 1:0
copyboot=protect off 1:0 ; cp.b 100000 40000000 40000 ; protect on 1:0
cmpboot=cmp.b 100000 40000000 40000
newboot=run fetchboot eraseboot copyboot cmpboot
fetchlinux=tftp 100000 /hymod/linux.bin
eraselinux=erase 1:2-4
copylinux=cp.b 100000 40080000 $(filesize)
cmplinux=cmp.b 100000 40080000 $(filesize)
newlinux=run fetchlinux eraselinux copylinux cmplinux
fetchaltlinux=tftp 100000 /hymod/altlinux.bin
erasealtlinux=erase 1:5-7
copyaltlinux=cp.b 100000 40080000 $(filesize)
cmpaltlinux=cmp.b 100000 40080000 $(filesize)
newaltlinux=run fetchaltlinux erasealtlinux copyaltlinux cmpaltlinux
fetchird=tftp 100000 /hymod/initrd.bin
eraseird=erase 1:8-63
copyird=cp.b 100000 40200000 $(filesize)
cmpird=cmp.b 100000 40200000 $(filesize)
newinitrd=run fetchird eraseird copyird cmpird
bootcmd=bootm 40080000 40200000
-bootargs=root=/dev/ram rw
# these are for hymod linux
bootargs+=preload=unix,i2c-cpm,i2c-dev
bootargs+=serialno=%S
bootargs+=ramdisk_size=32768
bootargs+=automount nisclient nisdomain=mlb.dmt.csiro.au nissrvadr=138.194.112.4
bootdelay=2

966
board/lwmon/lwmon.c Normal file
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/***********************************************************************
*
M* Modul: lwmon.c
M*
M* Content: LWMON specific U-Boot commands.
*
* (C) Copyright 2001, 2002
* DENX Software Engineering
* Wolfgang Denk, wd@denx.de
* All rights reserved.
*
D* Design: wd@denx.de
C* Coding: wd@denx.de
V* Verification: dzu@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
***********************************************************************/
/*---------------------------- Headerfiles ----------------------------*/
#include <common.h>
#include <mpc8xx.h>
#include <commproc.h>
#include <i2c.h>
#include <command.h>
#include <cmd_bsp.h>
#include <malloc.h>
#include <post.h>
#include <linux/types.h>
#include <linux/string.h> /* for strdup */
/*------------------------ Local prototypes ---------------------------*/
static long int dram_size (long int, long int *, long int);
/*--------------------- Local macros and constants --------------------*/
#define _NOT_USED_ 0xFFFFFFFF
/*
* 66 MHz SDRAM access using UPM A
*/
const uint sdram_table[] =
{
#if defined(CFG_MEMORY_75) || defined(CFG_MEMORY_8E)
/*
* Single Read. (Offset 0 in UPM RAM)
*/
0x1F0DFC04, 0xEEAFBC04, 0x11AF7C04, 0xEFBAFC00,
0x1FF5FC47, /* last */
/*
* SDRAM Initialization (offset 5 in UPM RAM)
*
* This is no UPM entry point. The following definition uses
* the remaining space to establish an initialization
* sequence, which is executed by a RUN command.
*
*/
0x1FF5FC34, 0xEFEABC34, 0x1FB57C35, /* last */
/*
* Burst Read. (Offset 8 in UPM RAM)
*/
0x1F0DFC04, 0xEEAFBC04, 0x10AF7C04, 0xF0AFFC00,
0xF0AFFC00, 0xF1AFFC00, 0xEFBAFC00, 0x1FF5FC47, /* last */
_NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
_NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
/*
* Single Write. (Offset 18 in UPM RAM)
*/
0x1F2DFC04, 0xEEABBC00, 0x01B27C04, 0x1FF5FC47, /* last */
_NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
/*
* Burst Write. (Offset 20 in UPM RAM)
*/
0x1F0DFC04, 0xEEABBC00, 0x10A77C00, 0xF0AFFC00,
0xF0AFFC00, 0xE1BAFC04, 0x01FF5FC47, /* last */
_NOT_USED_,
_NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
_NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
/*
* Refresh (Offset 30 in UPM RAM)
*/
0x1FFD7C84, 0xFFFFFC04, 0xFFFFFC04, 0xFFFFFC04,
0xFFFFFC84, 0xFFFFFC07, /* last */
_NOT_USED_, _NOT_USED_,
_NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
/*
* Exception. (Offset 3c in UPM RAM)
*/
0x7FFFFC07, /* last */
0xFFFFFCFF, 0xFFFFFCFF, 0xFFFFFCFF,
#endif
#ifdef CFG_MEMORY_7E
/*
* Single Read. (Offset 0 in UPM RAM)
*/
0x0E2DBC04, 0x11AF7C04, 0xEFBAFC00, 0x1FF5FC47, /* last */
_NOT_USED_,
/*
* SDRAM Initialization (offset 5 in UPM RAM)
*
* This is no UPM entry point. The following definition uses
* the remaining space to establish an initialization
* sequence, which is executed by a RUN command.
*
*/
0x1FF5FC34, 0xEFEABC34, 0x1FB57C35, /* last */
/*
* Burst Read. (Offset 8 in UPM RAM)
*/
0x0E2DBC04, 0x10AF7C04, 0xF0AFFC00, 0xF0AFFC00,
0xF1AFFC00, 0xEFBAFC00, 0x1FF5FC47, /* last */
_NOT_USED_,
_NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
_NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
/*
* Single Write. (Offset 18 in UPM RAM)
*/
0x0E29BC04, 0x01B27C04, 0x1FF5FC47, /* last */
_NOT_USED_,
_NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
/*
* Burst Write. (Offset 20 in UPM RAM)
*/
0x0E29BC04, 0x10A77C00, 0xF0AFFC00, 0xF0AFFC00,
0xE1BAFC04, 0x1FF5FC47, /* last */
_NOT_USED_, _NOT_USED_,
_NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
_NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
/*
* Refresh (Offset 30 in UPM RAM)
*/
0x1FFD7C84, 0xFFFFFC04, 0xFFFFFC04, 0xFFFFFC04,
0xFFFFFC84, 0xFFFFFC07, /* last */
_NOT_USED_, _NOT_USED_,
_NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
/*
* Exception. (Offset 3c in UPM RAM)
*/
0x7FFFFC07, /* last */
0xFFFFFCFF, 0xFFFFFCFF, 0xFFFFFCFF,
#endif
};
/*
* Check Board Identity:
*
*/
/***********************************************************************
F* Function: int checkboard (void) P*A*Z*
*
P* Parameters: none
P*
P* Returnvalue: int - 0 is always returned
*
Z* Intention: This function is the checkboard() method implementation
Z* for the lwmon board. Only a standard message is printed.
*
D* Design: wd@denx.de
C* Coding: wd@denx.de
V* Verification: dzu@denx.de
***********************************************************************/
int checkboard (void)
{
puts ("Board: Litronic Monitor IV\n");
return (0);
}
/***********************************************************************
F* Function: long int initdram (int board_type) P*A*Z*
*
P* Parameters: int board_type
P* - Usually type of the board - ignored here.
P*
P* Returnvalue: long int
P* - Size of initialized memory
*
Z* Intention: This function is the initdram() method implementation
Z* for the lwmon board.
Z* The memory controller is initialized to access the
Z* DRAM.
*
D* Design: wd@denx.de
C* Coding: wd@denx.de
V* Verification: dzu@denx.de
***********************************************************************/
long int initdram (int board_type)
{
volatile immap_t *immr = (immap_t *) CFG_IMMR;
volatile memctl8xx_t *memctl = &immr->im_memctl;
long int size_b0;
long int size8, size9;
int i;
/*
* Configure UPMA for SDRAM
*/
upmconfig (UPMA, (uint *)sdram_table, sizeof(sdram_table)/sizeof(uint));
memctl->memc_mptpr = CFG_MPTPR;
/* burst length=4, burst type=sequential, CAS latency=2 */
memctl->memc_mar = CFG_MAR;
/*
* Map controller bank 3 to the SDRAM bank at preliminary address.
*/
memctl->memc_or3 = CFG_OR3_PRELIM;
memctl->memc_br3 = CFG_BR3_PRELIM;
/* initialize memory address register */
memctl->memc_mamr = CFG_MAMR_8COL; /* refresh not enabled yet */
/* mode initialization (offset 5) */
udelay (200); /* 0x80006105 */
memctl->memc_mcr = MCR_OP_RUN | MCR_MB_CS3 | MCR_MLCF (1) | MCR_MAD (0x05);
/* run 2 refresh sequence with 4-beat refresh burst (offset 0x30) */
udelay (1); /* 0x80006130 */
memctl->memc_mcr = MCR_OP_RUN | MCR_MB_CS3 | MCR_MLCF (1) | MCR_MAD (0x30);
udelay (1); /* 0x80006130 */
memctl->memc_mcr = MCR_OP_RUN | MCR_MB_CS3 | MCR_MLCF (1) | MCR_MAD (0x30);
udelay (1); /* 0x80006106 */
memctl->memc_mcr = MCR_OP_RUN | MCR_MB_CS3 | MCR_MLCF (1) | MCR_MAD (0x06);
memctl->memc_mamr |= MAMR_PTBE; /* refresh enabled */
udelay (200);
/* Need at least 10 DRAM accesses to stabilize */
for (i = 0; i < 10; ++i) {
volatile unsigned long *addr =
(volatile unsigned long *) SDRAM_BASE3_PRELIM;
unsigned long val;
val = *(addr + i);
*(addr + i) = val;
}
/*
* Check Bank 0 Memory Size for re-configuration
*
* try 8 column mode
*/
size8 = dram_size (CFG_MAMR_8COL, (ulong *)SDRAM_BASE3_PRELIM, SDRAM_MAX_SIZE);
udelay (1000);
/*
* try 9 column mode
*/
size9 = dram_size (CFG_MAMR_9COL, (ulong *)SDRAM_BASE3_PRELIM, SDRAM_MAX_SIZE);
if (size8 < size9) { /* leave configuration at 9 columns */
size_b0 = size9;
memctl->memc_mamr = CFG_MAMR_9COL | MAMR_PTBE;
udelay (500);
} else { /* back to 8 columns */
size_b0 = size8;
memctl->memc_mamr = CFG_MAMR_8COL | MAMR_PTBE;
udelay (500);
}
/*
* Final mapping:
*/
memctl->memc_or3 = ((-size_b0) & 0xFFFF0000) |
OR_CSNT_SAM | OR_G5LS | SDRAM_TIMING;
memctl->memc_br3 = (CFG_SDRAM_BASE & BR_BA_MSK) | BR_MS_UPMA | BR_V;
udelay (1000);
return (size_b0);
}
/***********************************************************************
F* Function: static long int dram_size (long int mamr_value,
F* long int *base,
F* long int maxsize) P*A*Z*
*
P* Parameters: long int mamr_value
P* - Value for MAMR for the test
P* long int *base
P* - Base address for the test
P* long int maxsize
P* - Maximum size to test for
P*
P* Returnvalue: long int
P* - Size of probed memory
*
Z* Intention: Check memory range for valid RAM. A simple memory test
Z* determines the actually available RAM size between
Z* addresses `base' and `base + maxsize'. Some (not all)
Z* hardware errors are detected:
Z* - short between address lines
Z* - short between data lines
*
D* Design: wd@denx.de
C* Coding: wd@denx.de
V* Verification: dzu@denx.de
***********************************************************************/
static long int dram_size (long int mamr_value, long int *base, long int maxsize)
{
volatile immap_t *immr = (immap_t *) CFG_IMMR;
volatile memctl8xx_t *memctl = &immr->im_memctl;
volatile long int *addr;
ulong cnt, val;
ulong save[32]; /* to make test non-destructive */
unsigned char i = 0;
memctl->memc_mamr = mamr_value;
for (cnt = maxsize / sizeof (long); cnt > 0; cnt >>= 1) {
addr = base + cnt; /* pointer arith! */
save[i++] = *addr;
*addr = ~cnt;
}
/* write 0 to base address */
addr = base;
save[i] = *addr;
*addr = 0;
/* check at base address */
if ((val = *addr) != 0) {
*addr = save[i];
return (0);
}
for (cnt = 1; cnt <= maxsize / sizeof (long); cnt <<= 1) {
addr = base + cnt; /* pointer arith! */
val = *addr;
*addr = save[--i];
if (val != (~cnt)) {
return (cnt * sizeof (long));
}
}
return (maxsize);
}
/* ------------------------------------------------------------------------- */
#ifndef PB_ENET_TENA
# define PB_ENET_TENA ((uint)0x00002000) /* PB 18 */
#endif
/***********************************************************************
F* Function: int board_pre_init (void) P*A*Z*
*
P* Parameters: none
P*
P* Returnvalue: int
P* - 0 is always returned.
*
Z* Intention: This function is the board_pre_init() method implementation
Z* for the lwmon board.
Z* Disable Ethernet TENA on Port B.
*
D* Design: wd@denx.de
C* Coding: wd@denx.de
V* Verification: dzu@denx.de
***********************************************************************/
int board_pre_init (void)
{
volatile immap_t *immr = (immap_t *) CFG_IMMR;
/* Disable Ethernet TENA on Port B
* Necessary because of pull up in COM3 port.
*
* This is just a preliminary fix, intended to turn off TENA
* as soon as possible to avoid noise on the network. Once
* I²C is running we will make sure the interface is
* correctly initialized.
*/
immr->im_cpm.cp_pbpar &= ~PB_ENET_TENA;
immr->im_cpm.cp_pbodr &= ~PB_ENET_TENA;
immr->im_cpm.cp_pbdat &= ~PB_ENET_TENA; /* set to 0 = disabled */
immr->im_cpm.cp_pbdir |= PB_ENET_TENA;
return (0);
}
/* ------------------------------------------------------------------------- */
/***********************************************************************
F* Function: void reset_phy (void) P*A*Z*
*
P* Parameters: none
P*
P* Returnvalue: none
*
Z* Intention: Reset the PHY. In the lwmon case we do this by the
Z* signaling the PIC I/O expander.
*
D* Design: wd@denx.de
C* Coding: wd@denx.de
V* Verification: dzu@denx.de
***********************************************************************/
void reset_phy (void)
{
uchar c;
#ifdef DEBUG
printf ("### Switch on Ethernet for SCC2 ###\n");
#endif
c = pic_read (0x61);
#ifdef DEBUG
printf ("Old PIC read: reg_61 = 0x%02x\n", c);
#endif
c |= 0x40; /* disable COM3 */
c &= ~0x80; /* enable Ethernet */
pic_write (0x61, c);
#ifdef DEBUG
c = pic_read (0x61);
printf ("New PIC read: reg_61 = 0x%02x\n", c);
#endif
udelay (1000);
}
/*------------------------- Keyboard controller -----------------------*/
/* command codes */
#define KEYBD_CMD_READ_KEYS 0x01
#define KEYBD_CMD_READ_VERSION 0x02
#define KEYBD_CMD_READ_STATUS 0x03
#define KEYBD_CMD_RESET_ERRORS 0x10
/* status codes */
#define KEYBD_STATUS_MASK 0x3F
#define KEYBD_STATUS_H_RESET 0x20
#define KEYBD_STATUS_BROWNOUT 0x10
#define KEYBD_STATUS_WD_RESET 0x08
#define KEYBD_STATUS_OVERLOAD 0x04
#define KEYBD_STATUS_ILLEGAL_WR 0x02
#define KEYBD_STATUS_ILLEGAL_RD 0x01
/* Number of bytes returned from Keyboard Controller */
#define KEYBD_VERSIONLEN 2 /* version information */
#define KEYBD_DATALEN 9 /* normal key scan data */
/* maximum number of "magic" key codes that can be assigned */
static uchar kbd_addr = CFG_I2C_KEYBD_ADDR;
static uchar *key_match (uchar *);
#define KEYBD_SET_DEBUGMODE '#' /* Magic key to enable debug output */
/***********************************************************************
F* Function: int misc_init_r (void) P*A*Z*
*
P* Parameters: none
P*
P* Returnvalue: int
P* - 0 is always returned, even in the case of a keyboard
P* error.
*
Z* Intention: This function is the misc_init_r() method implementation
Z* for the lwmon board.
Z* The keyboard controller is initialized and the result
Z* of a read copied to the environment variable "keybd".
Z* If KEYBD_SET_DEBUGMODE is defined, a check is made for
Z* this key, and if found display to the LCD will be enabled.
Z* The keys in "keybd" are checked against the magic
Z* keycommands defined in the environment.
Z* See also key_match().
*
D* Design: wd@denx.de
C* Coding: wd@denx.de
V* Verification: dzu@denx.de
***********************************************************************/
int misc_init_r (void)
{
uchar kbd_data[KEYBD_DATALEN];
uchar tmp_data[KEYBD_DATALEN];
uchar keybd_env[2 * KEYBD_DATALEN + 1];
uchar val, errcd;
uchar *str;
int i;
i2c_init (CFG_I2C_SPEED, CFG_I2C_SLAVE);
/* Read initial keyboard error code */
val = KEYBD_CMD_READ_STATUS;
i2c_write (kbd_addr, 0, 0, &val, 1);
i2c_read (kbd_addr, 0, 0, &errcd, 1);
/* clear unused bits */
errcd &= KEYBD_STATUS_MASK;
/* clear "irrelevant" bits. Recommended by Martin Rajek, LWN */
errcd &= ~(KEYBD_STATUS_H_RESET|KEYBD_STATUS_BROWNOUT);
if (errcd) {
printf ("KEYBD: Error %02X\n", errcd);
}
/* Reset error code and verify */
val = KEYBD_CMD_RESET_ERRORS;
i2c_write (kbd_addr, 0, 0, &val, 1);
udelay(1000); /* delay NEEDED by keyboard PIC !!! */
val = KEYBD_CMD_READ_STATUS;
i2c_write (kbd_addr, 0, 0, &val, 1);
i2c_read (kbd_addr, 0, 0, &val, 1);
val &= KEYBD_STATUS_MASK; /* clear unused bits */
if (val) { /* permanent error, report it */
printf ("*** Keyboard error code %02X ***\n", val);
sprintf (keybd_env, "%02X", val);
setenv ("keybd", keybd_env);
return 0;
}
/*
* Now we know that we have a working keyboard, so disable
* all output to the LCD except when a key press is detected.
*/
if ((console_assign (stdout, "serial") < 0) ||
(console_assign (stderr, "serial") < 0)) {
printf ("Can't assign serial port as output device\n");
}
/* Read Version */
val = KEYBD_CMD_READ_VERSION;
i2c_write (kbd_addr, 0, 0, &val, 1);
i2c_read (kbd_addr, 0, 0, kbd_data, KEYBD_VERSIONLEN);
printf ("KEYBD: Version %d.%d\n", kbd_data[0], kbd_data[1]);
/*
* Read current keyboard state.
*
* After the error reset it may take some time before the
* keyboard PIC picks up a valid keyboard scan - the total
* scan time is approx. 1.6 ms (information by Martin Rajek,
* 28 Sep 2002). We read a couple of times for the keyboard
* to stabilize, using a big enough delay.
* 10 times should be enough. If the data is still changing,
* we use what we get :-(
*/
memset (tmp_data, 0xFF, KEYBD_DATALEN); /* impossible value */
for (i=0; i<10; ++i) {
val = KEYBD_CMD_READ_KEYS;
i2c_write (kbd_addr, 0, 0, &val, 1);
i2c_read (kbd_addr, 0, 0, kbd_data, KEYBD_DATALEN);
if (memcmp(kbd_data, tmp_data, KEYBD_DATALEN) == 0) {
/* consistent state, done */
break;
}
/* remeber last state, delay, and retry */
memcpy (tmp_data, kbd_data, KEYBD_DATALEN);
udelay (5000);
}
for (i = 0; i < KEYBD_DATALEN; ++i) {
sprintf (keybd_env + i + i, "%02X", kbd_data[i]);
}
setenv ("keybd", keybd_env);
str = strdup (key_match (kbd_data)); /* decode keys */
#ifdef KEYBD_SET_DEBUGMODE
if (kbd_data[0] == KEYBD_SET_DEBUGMODE) { /* set debug mode */
if ((console_assign (stdout, "lcd") < 0) ||
(console_assign (stderr, "lcd") < 0)) {
printf ("Can't assign LCD display as output device\n");
}
}
#endif /* KEYBD_SET_DEBUGMODE */
#ifdef CONFIG_PREBOOT /* automatically configure "preboot" command on key match */
setenv ("preboot", str); /* set or delete definition */
#endif /* CONFIG_PREBOOT */
if (str != NULL) {
free (str);
}
return (0);
}
#ifdef CONFIG_PREBOOT
static uchar kbd_magic_prefix[] = "key_magic";
static uchar kbd_command_prefix[] = "key_cmd";
/***********************************************************************
F* Function: static uchar *key_match (uchar *kbd_data) P*A*Z*
*
P* Parameters: uchar *kbd_data
P* - The keys to match against our magic definitions
P*
P* Returnvalue: uchar *
P* - != NULL: Pointer to the corresponding command(s)
P* NULL: No magic is about to happen
*
Z* Intention: Check if pressed key(s) match magic sequence,
Z* and return the command string associated with that key(s).
Z*
Z* If no key press was decoded, NULL is returned.
Z*
Z* Note: the first character of the argument will be
Z* overwritten with the "magic charcter code" of the
Z* decoded key(s), or '\0'.
Z*
Z* Note: the string points to static environment data
Z* and must be saved before you call any function that
Z* modifies the environment.
*
D* Design: wd@denx.de
C* Coding: wd@denx.de
V* Verification: dzu@denx.de
***********************************************************************/
static uchar *key_match (uchar *kbd_data)
{
uchar compare[KEYBD_DATALEN-1];
uchar magic[sizeof (kbd_magic_prefix) + 1];
uchar extra;
uchar *str, *nxt, *suffix;
uchar *kbd_magic_keys;
int i;
/*
* The following string defines the characters that can pe appended
* to "key_magic" to form the names of environment variables that
* hold "magic" key codes, i. e. such key codes that can cause
* pre-boot actions. If the string is empty (""), then only
* "key_magic" is checked (old behaviour); the string "125" causes
* checks for "key_magic1", "key_magic2" and "key_magic5", etc.
*/
if ((kbd_magic_keys = getenv ("magic_keys")) == NULL)
kbd_magic_keys = "";
/* loop over all magic keys;
* use '\0' suffix in case of empty string
*/
for (suffix=kbd_magic_keys; *suffix || suffix==kbd_magic_keys; ++suffix) {
sprintf (magic, "%s%c", kbd_magic_prefix, *suffix);
#if 0
printf ("### Check magic \"%s\"\n", magic);
#endif
/* Don't include modifier byte */
memcpy (compare, kbd_data+1, KEYBD_DATALEN-1);
extra = 0;
for (str= getenv(magic); str != NULL; str = (*nxt) ? nxt+1 : nxt) {
uchar c;
int k;
c = (uchar) simple_strtoul (str, (char **) (&nxt), 16);
if (str == nxt) { /* invalid character */
break;
}
/*
* Check if this key matches the input.
* Set matches to zero, so they match only once
* and we can find duplicates or extra keys
*/
for (k = 0; k < sizeof(compare); ++k) {
if (compare[k] == '\0') /* only non-zero entries */
continue;
if (c == compare[k]) { /* found matching key */
compare[k] = '\0';
break;
}
}
if (k == sizeof(compare)) {
extra = 1; /* unmatched key */
}
}
/*
* A full match leaves no keys in the `compare' array,
* and has no extra keys
*/
for (i = 0; i < sizeof(compare); ++i) {
if (compare[i])
break;
}
if ((i == sizeof(compare)) && (extra == 0)) {
uchar cmd_name[sizeof (kbd_command_prefix) + 1];
char *cmd;
sprintf (cmd_name, "%s%c", kbd_command_prefix, *suffix);
cmd = getenv (cmd_name);
#if 0
printf ("### Set PREBOOT to $(%s): \"%s\"\n",
cmd_name, cmd ? cmd : "<<NULL>>");
#endif
*kbd_data = *suffix;
return (cmd);
}
}
#if 0
printf ("### Delete PREBOOT\n");
#endif
*kbd_data = '\0';
return (NULL);
}
#endif /* CONFIG_PREBOOT */
/*---------------Board Special Commands: PIC read/write ---------------*/
#if (CONFIG_COMMANDS & CFG_CMD_BSP)
/***********************************************************************
F* Function: int do_pic (cmd_tbl_t *cmdtp, int flag,
F* int argc, char *argv[]) P*A*Z*
*
P* Parameters: cmd_tbl_t *cmdtp
P* - Pointer to our command table entry
P* int flag
P* - If the CMD_FLAG_REPEAT bit is set, then this call is
P* a repetition
P* int argc
P* - Argument count
P* char *argv[]
P* - Array of the actual arguments
P*
P* Returnvalue: int
P* - 0 The command was handled successfully
P* 1 An error occurred
*
Z* Intention: Implement the "pic [read|write]" commands.
Z* The read subcommand takes one argument, the register,
Z* whereas the write command takes two, the register and
Z* the new value.
*
D* Design: wd@denx.de
C* Coding: wd@denx.de
V* Verification: dzu@denx.de
***********************************************************************/
int do_pic (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
{
uchar reg, val;
switch (argc) {
case 3: /* PIC read reg */
if (strcmp (argv[1], "read") != 0)
break;
reg = simple_strtoul (argv[2], NULL, 16);
printf ("PIC read: reg %02x: %02x\n\n", reg, pic_read (reg));
return 0;
case 4: /* PIC write reg val */
if (strcmp (argv[1], "write") != 0)
break;
reg = simple_strtoul (argv[2], NULL, 16);
val = simple_strtoul (argv[3], NULL, 16);
printf ("PIC write: reg %02x val 0x%02x: %02x => ",
reg, val, pic_read (reg));
pic_write (reg, val);
printf ("%02x\n\n", pic_read (reg));
return 0;
default:
break;
}
printf ("Usage:\n%s\n", cmdtp->usage);
return 1;
}
/***********************************************************************
F* Function: int do_kbd (cmd_tbl_t *cmdtp, int flag,
F* int argc, char *argv[]) P*A*Z*
*
P* Parameters: cmd_tbl_t *cmdtp
P* - Pointer to our command table entry
P* int flag
P* - If the CMD_FLAG_REPEAT bit is set, then this call is
P* a repetition
P* int argc
P* - Argument count
P* char *argv[]
P* - Array of the actual arguments
P*
P* Returnvalue: int
P* - 0 is always returned.
*
Z* Intention: Implement the "kbd" command.
Z* The keyboard status is read. The result is printed on
Z* the console and written into the "keybd" environment
Z* variable.
*
D* Design: wd@denx.de
C* Coding: wd@denx.de
V* Verification: dzu@denx.de
***********************************************************************/
int do_kbd (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
{
uchar kbd_data[KEYBD_DATALEN];
uchar keybd_env[2 * KEYBD_DATALEN + 1];
uchar val;
int i;
i2c_init (CFG_I2C_SPEED, CFG_I2C_SLAVE);
/* Read keys */
val = KEYBD_CMD_READ_KEYS;
i2c_write (kbd_addr, 0, 0, &val, 1);
i2c_read (kbd_addr, 0, 0, kbd_data, KEYBD_DATALEN);
puts ("Keys:");
for (i = 0; i < KEYBD_DATALEN; ++i) {
sprintf (keybd_env + i + i, "%02X", kbd_data[i]);
printf (" %02x", kbd_data[i]);
}
putc ('\n');
setenv ("keybd", keybd_env);
return 0;
}
/* Read and set LSB switch */
#define CFG_PC_TXD1_ENA 0x0008
/***********************************************************************
F* Function: int do_lsb (cmd_tbl_t *cmdtp, int flag,
F* int argc, char *argv[]) P*A*Z*
*
P* Parameters: cmd_tbl_t *cmdtp
P* - Pointer to our command table entry
P* int flag
P* - If the CMD_FLAG_REPEAT bit is set, then this call is
P* a repetition
P* int argc
P* - Argument count
P* char *argv[]
P* - Array of the actual arguments
P*
P* Returnvalue: int
P* - 0 The command was handled successfully
P* 1 An error occurred
*
Z* Intention: Implement the "lsb [on|off]" commands.
Z* The lsb is switched according to the first parameter by
Z* by signaling the PIC I/O expander.
Z* Called with no arguments, the current setting is
Z* printed.
*
D* Design: wd@denx.de
C* Coding: wd@denx.de
V* Verification: dzu@denx.de
***********************************************************************/
int do_lsb (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
{
uchar val;
immap_t *immr = (immap_t *) CFG_IMMR;
switch (argc) {
case 1: /* lsb - print setting */
val = pic_read (0x60);
printf ("LSB is o%s\n", (val & 0x20) ? "n" : "ff");
return 0;
case 2: /* lsb on or lsb off - set switch */
val = pic_read (0x60);
if (strcmp (argv[1], "on") == 0) {
val |= 0x20;
immr->im_ioport.iop_pcpar &= ~(CFG_PC_TXD1_ENA);
immr->im_ioport.iop_pcdat |= CFG_PC_TXD1_ENA;
immr->im_ioport.iop_pcdir |= CFG_PC_TXD1_ENA;
} else if (strcmp (argv[1], "off") == 0) {
val &= ~0x20;
immr->im_ioport.iop_pcpar &= ~(CFG_PC_TXD1_ENA);
immr->im_ioport.iop_pcdat &= ~(CFG_PC_TXD1_ENA);
immr->im_ioport.iop_pcdir |= CFG_PC_TXD1_ENA;
} else {
break;
}
pic_write (0x60, val);
return 0;
default:
break;
}
printf ("Usage:\n%s\n", cmdtp->usage);
return 1;
}
#endif /* CFG_CMD_BSP */
/*----------------------------- Utilities -----------------------------*/
/***********************************************************************
F* Function: uchar pic_read (uchar reg) P*A*Z*
*
P* Parameters: uchar reg
P* - Register to read
P*
P* Returnvalue: uchar
P* - Value read from register
*
Z* Intention: Read a register from the PIC I/O expander.
*
D* Design: wd@denx.de
C* Coding: wd@denx.de
V* Verification: dzu@denx.de
***********************************************************************/
uchar pic_read (uchar reg)
{
return (i2c_reg_read (CFG_I2C_PICIO_ADDR, reg));
}
/***********************************************************************
F* Function: void pic_write (uchar reg, uchar val) P*A*Z*
*
P* Parameters: uchar reg
P* - Register to read
P* uchar val
P* - Value to write
P*
P* Returnvalue: none
*
Z* Intention: Write to a register on the PIC I/O expander.
*
D* Design: wd@denx.de
C* Coding: wd@denx.de
V* Verification: dzu@denx.de
***********************************************************************/
void pic_write (uchar reg, uchar val)
{
i2c_reg_write (CFG_I2C_PICIO_ADDR, reg, val);
}
/*---------------------- Board Control Functions ----------------------*/
/***********************************************************************
F* Function: void board_poweroff (void) P*A*Z*
*
P* Parameters: none
P*
P* Returnvalue: none
*
Z* Intention: Turn off the battery power and loop endless, so this
Z* should better be the last function you call...
*
D* Design: wd@denx.de
C* Coding: wd@denx.de
V* Verification: dzu@denx.de
***********************************************************************/
void board_poweroff (void)
{
/* Turn battery off */
((volatile immap_t *)CFG_IMMR)->im_ioport.iop_pcdat &= ~(1 << (31 - 13));
while (1);
}

301
board/musenki/README Normal file
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@ -0,0 +1,301 @@
U-Boot for a Musenki M-3/M-1 board
---------------------------
Musenki M-1 and M-3 have two banks of flash of 4MB or 8MB each.
In board's notation, bank 0 is the one at the address of 0xFF800000
and bank 1 is the one at the address of 0xFF000000.
On power-up the processor jumps to the address of 0xFFF00100, the last
megabyte of the bank 0 of flash.
Thus, U-Boot is configured to reside in flash starting at the address of
0xFFF00000. The environment space is located in flash separately from
U-Boot, at the address of 0xFF800000.
There is a Davicom 9102A on-board, but I don't have it working yet.
U-Boot test results
--------------------
x.x Operation on all available serial consoles
x.x.x CONFIG_CONS_INDEX 1
U-Boot 1.1.1 (Nov 20 2001 - 15:55:32)
CPU: MPC8245 Revision 16.20 at 250 MHz: 16 kB I-Cache 16 kB D-Cache
Board: MUSENKI Local Bus at 100 MHz
DRAM: 32 MB
FLASH: 4 MB
In: serial
Out: serial
Err: serial
Hit any key to stop autoboot: 0
=> help
autoscr - run script from memory
base - print or set address offset
bdinfo - print Board Info structure
bootm - boot application image from memory
bootp - boot image via network using BootP/TFTP protocol
bootd - boot default, i.e., run 'bootcmd'
cmp - memory compare
coninfo - print console devices and informations
cp - memory copy
crc32 - checksum calculation
dcache - enable or disable data cache
echo - echo args to console
erase - erase FLASH memory
flinfo - print FLASH memory information
go - start application at address 'addr'
help - print online help
icache - enable or disable instruction cache
iminfo - print header information for application image
loadb - load binary file over serial line (kermit mode)
loads - load S-Record file over serial line
loop - infinite loop on address range
md - memory display
mm - memory modify (auto-incrementing)
mtest - simple RAM test
mw - memory write (fill)
nm - memory modify (constant address)
printenv- print environment variables
protect - enable or disable FLASH write protection
rarpboot- boot image via network using RARP/TFTP protocol
reset - Perform RESET of the CPU
run - run commands in an environment variable
saveenv - save environment variables to persistent storage
setenv - set environment variables
tftpboot- boot image via network using TFTP protocol
and env variables ipaddr and serverip
version - print monitor version
? - alias for 'help'
x.x.x CONFIG_CONS_INDEX 2
**** NOT TESTED ****
x.x Flash Driver Operation
Boot 1.1.1 (Nov 20 2001 - 15:55:32)
CPU: MPC8245 Revision 16.20 at 250 MHz: 16 kB I-Cache 16 kB D-Cache
Board: MUSENKI Local Bus at 100 MHz
DRAM: 32 MB
FLASH: 4 MB
*** Warning - bad CRC, using default environment
In: serial
Out: serial
Err: serial
Hit any key to stop autoboot: 0
=>
=> md ff800000
ff800000: 46989bf8 626f6f74 636d643d 626f6f74 F...bootcmd=boot
ff800010: 6d204646 38323030 30300062 6f6f7464 m FF820000.bootd
ff800020: 656c6179 3d350062 61756472 6174653d elay=5.baudrate=
ff800030: 39363030 00636c6f 636b735f 696e5f6d 9600.clocks_in_m
ff800040: 687a3d31 00737464 696e3d73 65726961 hz=1.stdin=seria
ff800050: 6c007374 646f7574 3d736572 69616c00 l.stdout=serial.
ff800060: 73746465 72723d73 65726961 6c006970 stderr=serial.ip
ff800070: 61646472 3d313932 2e313638 2e302e34 addr=192.168.0.4
ff800080: 32007365 72766572 69703d31 39322e31 2.serverip=192.1
ff800090: 36382e30 2e380000 00000000 00000000 68.0.8..........
ff8000a0: 00000000 00000000 00000000 00000000 ................
ff8000b0: 00000000 00000000 00000000 00000000 ................
ff8000c0: 00000000 00000000 00000000 00000000 ................
ff8000d0: 00000000 00000000 00000000 00000000 ................
ff8000e0: 00000000 00000000 00000000 00000000 ................
ff8000f0: 00000000 00000000 00000000 00000000 ................
=> protect off ff800000 ff81ffff
Un-Protected 1 sectors
=> erase ff800000 ff81ffff
Erase Flash from 0xff800000 to 0xff81ffff
done
Erased 1 sectors
=> md ff800000
ff800000: ffffffff ffffffff ffffffff ffffffff ................
ff800010: ffffffff ffffffff ffffffff ffffffff ................
ff800020: ffffffff ffffffff ffffffff ffffffff ................
ff800030: ffffffff ffffffff ffffffff ffffffff ................
ff800040: ffffffff ffffffff ffffffff ffffffff ................
ff800050: ffffffff ffffffff ffffffff ffffffff ................
ff800060: ffffffff ffffffff ffffffff ffffffff ................
ff800070: ffffffff ffffffff ffffffff ffffffff ................
ff800080: ffffffff ffffffff ffffffff ffffffff ................
ff800090: ffffffff ffffffff ffffffff ffffffff ................
ff8000a0: ffffffff ffffffff ffffffff ffffffff ................
ff8000b0: ffffffff ffffffff ffffffff ffffffff ................
ff8000c0: ffffffff ffffffff ffffffff ffffffff ................
ff8000d0: ffffffff ffffffff ffffffff ffffffff ................
ff8000e0: ffffffff ffffffff ffffffff ffffffff ................
ff8000f0: ffffffff ffffffff ffffffff ffffffff ................
x.x.x Information
U-Boot 1.1.1 (Nov 20 2001 - 15:55:32)
CPU: MPC8245 Revision 16.20 at 250 MHz: 16 kB I-Cache 16 kB D-Cache
Board: MUSENKI Local Bus at 100 MHz
DRAM: 32 MB
FLASH: 4 MB
*** Warning - bad CRC, using default environment
In: serial
Out: serial
Err: serial
Hit any key to stop autoboot: 0
=> flinfo
Bank # 1: Intel 28F320J3A (32Mbit = 128K x 32)
Size: 4 MB in 32 Sectors
Sector Start Addresses:
FF800000 (RO) FF820000 FF840000 FF860000 FF880000
FF8A0000 FF8C0000 FF8E0000 FF900000 FF920000
FF940000 FF960000 FF980000 FF9A0000 FF9C0000
FF9E0000 FFA00000 FFA20000 FFA40000 FFA60000
FFA80000 FFAA0000 FFAC0000 FFAE0000 FFB00000
FFB20000 FFB40000 FFB60000 FFB80000 FFBA0000
FFBC0000 FFBE0000
Bank # 2: missing or unknown FLASH type
=>
x.x.x Flash Programming
U-Boot 1.1.1 (Nov 20 2001 - 15:55:32)
CPU: MPC8245 Revision 16.20 at 250 MHz: 16 kB I-Cache 16 kB D-Cache
Board: MUSENKI Local Bus at 100 MHz
DRAM: 32 MB
FLASH: 4 MB
In: serial
Out: serial
Err: serial
Hit any key to stop autoboot: 0
=>
=>
=>
=> protect off ff800000 ff81ffff
Un-Protected 1 sectors
=> cp 0 ff800000 20
Copy to Flash... done
=> md ff800000
ff800000: 37ce33ec 33cc334c 33c031cc 33cc35cc 7.3.3.3L3.1.3.5.
ff800010: 33ec13ce 30ccb3ec b3c833c4 31c836cc 3...0.....3.1.6.
ff800020: 33cc3b9d 31ec33ee 13ecf3cc 338833ec 3.;.1.3.....3.3.
ff800030: 234c33ec 32cc22cc 33883bdc 534433cc #L3.2.".3.;.SD3.
ff800040: 33cc30c8 31cc32ec 338c33cc 330c33dc 3.0.1.2.3.3.3.3.
ff800050: 33cc13dc 334c534c b1c433d8 128c13cc 3...3LSL..3.....
ff800060: 37ec36cd 33dc33cc bbc9f7e8 bbcc77cc 7.6.3.3.......w.
ff800070: 314c0adc 139c30ed 33cc334c 33c833ec 1L....0.3.3L3.3.
ff800080: ffffffff ffffffff ffffffff ffffffff ................
ff800090: ffffffff ffffffff ffffffff ffffffff ................
ff8000a0: ffffffff ffffffff ffffffff ffffffff ................
ff8000b0: ffffffff ffffffff ffffffff ffffffff ................
ff8000c0: ffffffff ffffffff ffffffff ffffffff ................
ff8000d0: ffffffff ffffffff ffffffff ffffffff ................
ff8000e0: ffffffff ffffffff ffffffff ffffffff ................
ff8000f0: ffffffff ffffffff ffffffff ffffffff ................
x.x.x Storage of environment variables in flash
U-Boot 1.1.1 (Nov 20 2001 - 15:55:32)
CPU: MPC8245 Revision 16.20 at 250 MHz: 16 kB I-Cache 16 kB D-Cache
Board: MUSENKI Local Bus at 100 MHz
DRAM: 32 MB
FLASH: 4 MB
In: serial
Out: serial
Err: serial
Hit any key to stop autoboot: 0
=> printenv
bootcmd=bootm FF820000
bootdelay=5
baudrate=9600
clocks_in_mhz=1
stdin=serial
stdout=serial
stderr=serial
Environment size: 106/16380 bytes
=> setenv myvar 1234
=> saveenv
Un-Protected 1 sectors
Erasing Flash...
done
Erased 1 sectors
Saving Environment to Flash...
Protected 1 sectors
=> reset
U-Boot 1.1.1 (Nov 20 2001 - 15:55:32)
CPU: MPC8245 Revision 16.20 at 250 MHz: 16 kB I-Cache 16 kB D-Cache
Board: MUSENKI Local Bus at 100 MHz
DRAM: 32 MB
FLASH: 4 MB
In: serial
Out: serial
Err: serial
Hit any key to stop autoboot: 0
=> printenv
bootcmd=bootm FF820000
bootdelay=5
baudrate=9600
clocks_in_mhz=1
myvar=1234
stdin=serial
stdout=serial
stderr=serial
Environment size: 117/16380 bytes
x.x Image Download and run over serial port
U-Boot 1.1.1 (Nov 20 2001 - 15:55:32)
CPU: MPC8245 Revision 16.20 at 250 MHz: 16 kB I-Cache 16 kB D-Cache
Board: MUSENKI Local Bus at 100 MHz
DRAM: 32 MB
FLASH: 4 MB
In: serial
Out: serial
Err: serial
Hit any key to stop autoboot: 0
=> loads
## Ready for S-Record download ...
## First Load Addr = 0x00040000
## Last Load Addr = 0x00050177
## Total Size = 0x00010178 = 65912 Bytes
## Start Addr = 0x00040004
=> go 40004
## Starting application at 0x00040004 ...
Hello World
argc = 1
argv[0] = "40004"
argv[1] = "<NULL>"
Hit any key to exit ...
## Application terminated, rc = 0x0
x.x Image download and run over ethernet interface
untested (not working yet, actually)

132
board/pcippc2/u-boot.lds Normal file
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@ -0,0 +1,132 @@
/*
* (C) Copyright 2001
* Josh Huber <huber@mclx.com>, Mission Critical Linux, Inc.
*
* (C) Copyright 2002
* Wolfgang Denk, DENX Software Engineering, wd@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
*/
/*
* u-boot.lds - linker script for U-Boot on the Galileo Eval Board.
*/
OUTPUT_ARCH(powerpc)
SEARCH_DIR(/lib); SEARCH_DIR(/usr/lib); SEARCH_DIR(/usr/local/lib); SEARCH_DIR(/usr/local/powerpc-any-elf/lib);
/* Do we need any of these for elf?
__DYNAMIC = 0; */
SECTIONS
{
/* Read-only sections, merged into text segment: */
. = + SIZEOF_HEADERS;
.interp : { *(.interp) }
.hash : { *(.hash) }
.dynsym : { *(.dynsym) }
.dynstr : { *(.dynstr) }
.rel.text : { *(.rel.text) }
.rela.text : { *(.rela.text) }
.rel.data : { *(.rel.data) }
.rela.data : { *(.rela.data) }
.rel.rodata : { *(.rel.rodata) }
.rela.rodata : { *(.rela.rodata) }
.rel.got : { *(.rel.got) }
.rela.got : { *(.rela.got) }
.rel.ctors : { *(.rel.ctors) }
.rela.ctors : { *(.rela.ctors) }
.rel.dtors : { *(.rel.dtors) }
.rela.dtors : { *(.rela.dtors) }
.rel.bss : { *(.rel.bss) }
.rela.bss : { *(.rela.bss) }
.rel.plt : { *(.rel.plt) }
.rela.plt : { *(.rela.plt) }
.init : { *(.init) }
.plt : { *(.plt) }
.text :
{
cpu/74xx_7xx/start.o (.text)
/* store the environment in a seperate sector in the boot flash */
/* . = env_offset; */
/* common/environment.o(.text) */
*(.text)
*(.fixup)
*(.got1)
}
_etext = .;
PROVIDE (etext = .);
.rodata :
{
*(.rodata)
*(.rodata1)
}
.fini : { *(.fini) } =0
.ctors : { *(.ctors) }
.dtors : { *(.dtors) }
/* Read-write section, merged into data segment: */
. = (. + 0x00FF) & 0xFFFFFF00;
_erotext = .;
PROVIDE (erotext = .);
.reloc :
{
*(.got)
_GOT2_TABLE_ = .;
*(.got2)
_FIXUP_TABLE_ = .;
*(.fixup)
}
__got2_entries = (_FIXUP_TABLE_ - _GOT2_TABLE_) >>2;
__fixup_entries = (. - _FIXUP_TABLE_)>>2;
.data :
{
*(.data)
*(.data1)
*(.sdata)
*(.sdata2)
*(.dynamic)
CONSTRUCTORS
}
_edata = .;
PROVIDE (edata = .);
__start___ex_table = .;
__ex_table : { *(__ex_table) }
__stop___ex_table = .;
. = ALIGN(256);
__init_begin = .;
.text.init : { *(.text.init) }
.data.init : { *(.data.init) }
. = ALIGN(256);
__init_end = .;
__bss_start = .;
.bss :
{
*(.sbss) *(.scommon)
*(.dynbss)
*(.bss)
*(COMMON)
}
_end = . ;
PROVIDE (end = .);
}

42
board/pm826/config.mk Normal file
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@ -0,0 +1,42 @@
#
# (C) Copyright 2001, 2002
# Wolfgang Denk, DENX Software Engineering, wd@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
#
#
# PM826 boards
#
# This should be equal to the CFG_FLASH_BASE or
# CFG_BOOTROM_BASE define in config_PM826.h
# for the "final" configuration, with U-Boot
# in flash, or the address in RAM where
# U-Boot is loaded at for debugging.
#
ifeq ($(CONFIG_BOOT_ROM),y)
TEXT_BASE := 0x60000000
PLATFORM_CPPFLAGS += -DCONFIG_BOOT_ROM
else
TEXT_BASE := 0x40000000
endif
PLATFORM_CPPFLAGS += -DTEXT_BASE=$(TEXT_BASE) -I$(TOPDIR)

30
board/rpxsuper/readme Normal file
View File

@ -0,0 +1,30 @@
Hi,
so this is the port to the Embedded Planet RPX Super Board.
ATTENTION
This code is only tested on the AY-Version, which is an early release with some
hardware bugs. The main problem is that this board uses the default Hard Reset
Configuration Word and not the 4 bytes located at start of FLASH because at
0xFE000000 is no FLASH. The FLASH consists out of 4 chips each 16bits wide. Be
carefull, the bytes are swapped. So DQ0-7 is the high byte, DQ8-15 ist the low
byte.
The icache can only manually be enabled after reset.
The FLASH and main SDRAM is working with icache enabled.
The local SDRAM can only be used as data memory when icache is enabled.
If U-Boot runs in local SDRAM, TFTP does not work.
The functions in mii_phy.c are all working. Call mii_phy_discover() out of
eth_init() and solve the linker error.
I2C, RTC/NVRAM and PCMCIA are not working yet.
TODO
The 32MB local SDRAM is working but not shown in the startup messages of
U-Boot. If you locate U-Boot or any other program to this area it won't run.
Turning the ichache off does not solve this problem.
As I won't buy another RPX Super there might be some little work to do for you
getting this U-Boot port running on the final board.
frank.morauf@salzbrenner.com

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#
# (C) Copyright 2001
# Wolfgang Denk, DENX Software Engineering, wd@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
#
#
# Siemens SCM boards
#
# This should be equal to the CFG_FLASH_BASE define in config_SCM.h
# for the "final" configuration, with U-Boot in flash, or the address
# in RAM where U-Boot is loaded at for debugging.