Commit 0c32d96d authored by Wolfgang Denk's avatar Wolfgang Denk
Browse files

Add support for gth2 board

Patch by Thomas Lange, Aug 11 2005
parent c12cffc5
......@@ -2,6 +2,9 @@
Changes since U-Boot 1.1.4:
======================================================================
* Add support for gth2 board
Patch by Thomas Lange, Aug 11 2005
* Add support for CONFIG_SERIAL_MULTI on MPC5xxx
Patch by Martin Krause, 8 Jun 2006
......
......@@ -253,7 +253,7 @@ D Support for Intrinsyc CERF PXA250 board.
N: Thomas Lange
E: thomas@corelatus.se
D: Support for GTH and dbau1x00 boards; lots of PCMCIA fixes
D: Support for GTH, GTH2 and dbau1x00 boards; lots of PCMCIA fixes
N: Marc Leeman
E: marc.leeman@barco.com
......
......@@ -489,6 +489,7 @@ Wolfgang Denk <wd@denx.de>
Thomas Lange <thomas@corelatus.se>
dbau1x00 MIPS32 Au1000
gth2 MIPS32 Au1000
#########################################################################
# Nios-32 Systems: #
......
......@@ -226,7 +226,7 @@ LIST_mips4kc="incaip"
LIST_mips5kc="purple"
LIST_au1xx0="dbau1000 dbau1100 dbau1500 dbau1550 dbau1550_el"
LIST_au1xx0="dbau1000 dbau1100 dbau1500 dbau1550 dbau1550_el gth2"
LIST_mips="${LIST_mips4kc} ${LIST_mips5kc} ${LIST_au1xx0}"
......
......@@ -1652,6 +1652,11 @@ cm4008_config : unconfig
cm41xx_config : unconfig
@./mkconfig $(@:_config=) arm arm920t cm41xx NULL ks8695
gth2_config : unconfig
@ >include/config.h
@echo "#define CONFIG_GTH2 1" >>include/config.h
@./mkconfig -a gth2 mips mips gth2
#########################################################################
## S3C44B0 Systems
#########################################################################
......
#
# (C) Copyright 2005
# 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
#
include $(TOPDIR)/config.mk
LIB = lib$(BOARD).a
OBJS = $(BOARD).o flash.o ee_access.o
SOBJS = lowlevel_init.o
$(LIB): .depend $(OBJS) $(SOBJS)
$(AR) crv $@ $(OBJS) $(SOBJS)
#########################################################################
.depend: Makefile $(SOBJS:.o=.S) $(OBJS:.o=.c)
$(CC) -M $(CFLAGS) $(SOBJS:.o=.S) $(OBJS:.o=.c) > $@
sinclude .depend
#########################################################################
#
# (C) Copyright 2004-2005
# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
#
# See file CREDITS for list of people who contributed to this
# project.
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License as
# published by the Free Software Foundation; either version 2 of
# the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston,
# MA 02111-1307 USA
#
#
# AMD Alchemy AU1000, MIPS32 core
#
ifeq ($(TBASE),0)
TEXT_BASE = 0
else
ifeq ($(TBASE),1)
TEXT_BASE = 0xbfc10070
else
ifeq ($(TBASE),2)
TEXT_BASE = 0xbfc30070
else
## Only to make ordinary make work
TEXT_BASE = 0x90000000
endif
endif
endif
/* Module for handling DALLAS DS2438, smart battery monitor
Chip can store up to 40 bytes of user data in EEPROM,
perform temp, voltage and current measurements.
Chip also contains a unique serial number.
Always read/write LSb first
For documentaion, see data sheet for DS2438, 2438.pdf
By Thomas.Lange@corelatus.com 001025
Copyright (C) 2000-2005 Corelatus AB */
/* 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 <command.h>
#include <asm/au1x00.h>
#include <asm/io.h>
#include "ee_dev.h"
#include "ee_access.h"
/* static int Debug = 1; */
#undef E_DEBUG
#define E_DEBUG(fmt,args...) /* */
/* #define E_DEBUG(fmt,args...) printk("EEA:"fmt,##args); */
/* We dont have kernel functions */
#define printk printf
#define KERN_DEBUG
#define KERN_ERR
#define EIO 1
#ifndef TRUE
#define TRUE 1
#endif
#ifndef FALSE
#define FALSE 0
#endif
/* lookup table ripped from DS app note 17, understanding and using cyclic redundancy checks... */
static u8 crc_lookup[256] = {
0, 94, 188, 226, 97, 63, 221, 131,
194, 156, 126, 32, 163, 253, 31, 65,
157, 195, 33, 127, 252, 162, 64, 30,
95, 1, 227, 189, 62, 96, 130, 220,
35, 125, 159, 193, 66, 28, 254, 160,
225, 191, 93, 3, 128, 222, 60, 98,
190, 224, 2, 92, 223, 129, 99, 61,
124, 34, 192, 158, 29, 67, 161, 255,
70, 24, 250, 164, 39, 121, 155, 197,
132, 218, 56, 102, 229, 187, 89, 7,
219, 133, 103, 57, 186, 228, 6, 88,
25, 71, 165, 251, 120, 38, 196, 154,
101, 59, 217, 135, 4, 90, 184, 230,
167, 249, 27, 69, 198, 152, 122, 36,
248, 166, 68, 26, 153, 199, 37, 123,
58, 100, 134, 216, 91, 5, 231, 185,
140, 210, 48, 110, 237, 179, 81, 15,
78, 16, 242, 172, 47, 113, 147, 205,
17, 79, 173, 243, 112, 46, 204, 146,
211, 141, 111, 49, 178, 236, 14, 80,
175, 241, 19, 77, 206, 144, 114, 44,
109, 51, 209, 143, 12, 82, 176, 238,
50, 108, 142, 208, 83, 13, 239, 177,
240, 174, 76, 18, 145, 207, 45, 115,
202, 148, 118, 40, 171, 245, 23, 73,
8, 86, 180, 234, 105, 55, 213, 139,
87, 9, 235, 181, 54, 104, 138, 212,
149, 203, 41, 119, 244, 170, 72, 22,
233, 183, 85, 11, 136, 214, 52, 106,
43, 117, 151, 201, 74, 20, 246, 168,
116, 42, 200, 150, 21, 75, 169, 247,
182, 232, 10, 84, 215, 137, 107, 53
};
static void
write_gpio_data(int value ){
if(value){
/* Tristate */
gpio_tristate(GPIO_EEDQ);
}
else{
/* Drive 0 */
gpio_clear(GPIO_EEDQ);
}
}
static u8 make_new_crc( u8 Old_crc, u8 New_value ){
/* Compute a new checksum with new byte, using previous checksum as input
See DS app note 17, understanding and using cyclic redundancy checks...
Also see DS2438, page 11 */
return( crc_lookup[Old_crc ^ New_value ]);
}
int ee_crc_ok( u8 *Buffer, int Len, u8 Crc ){
/* Check if the checksum for this buffer is correct */
u8 Curr_crc=0;
int i;
u8 *Curr_byte = Buffer;
for(i=0;i<Len;i++){
Curr_crc = make_new_crc( Curr_crc, *Curr_byte);
Curr_byte++;
}
E_DEBUG("Calculated CRC = 0x%x, read = 0x%x\n", Curr_crc, Crc);
if(Curr_crc == Crc){
/* Good */
return(TRUE);
}
printk(KERN_ERR"EE checksum error, Calculated CRC = 0x%x, read = 0x%x\n", Curr_crc, Crc);
return(FALSE);
}
static void
set_idle(void){
/* Send idle and keep start time
Continous 1 is idle */
WRITE_PORT(1);
}
static int
do_cpu_reset(void){
/* Release reset and verify that chip responds with presence pulse */
int Retries=0;
while(Retries<15){
udelay(RESET_LOW_TIME);
/* Send reset */
WRITE_PORT(0);
udelay(RESET_LOW_TIME);
/* Release reset */
WRITE_PORT(1);
/* Wait for EEPROM to drive output */
udelay(PRESENCE_TIMEOUT);
if(!READ_PORT){
/* Ok, EEPROM is driving a 0 */
E_DEBUG("Presence detected\n");
if(Retries){
E_DEBUG("Retries %d\n",Retries);
}
/* Make sure chip releases pin */
udelay(PRESENCE_LOW_TIME);
return 0;
}
Retries++;
}
printk(KERN_ERR"eeprom did not respond when releasing reset\n");
/* Make sure chip releases pin */
udelay(PRESENCE_LOW_TIME);
/* Set to idle again */
set_idle();
return(-EIO);
}
static u8
read_cpu_byte(void){
/* Read a single byte from EEPROM
Read LSb first */
int i;
int Value;
u8 Result=0;
u32 Flags;
E_DEBUG("Reading byte\n");
for(i=0;i<8;i++){
/* Small delay between pulses */
udelay(1);
#ifdef __KERNEL__
/* Disable irq */
save_flags(Flags);
cli();
#endif
/* Pull down pin short time to start read
See page 26 in data sheet */
WRITE_PORT(0);
udelay(READ_LOW);
WRITE_PORT(1);
/* Wait for chip to drive pin */
udelay(READ_TIMEOUT);
Value = READ_PORT;
if(Value)
Value=1;
#ifdef __KERNEL__
/* Enable irq */
restore_flags(Flags);
#endif
/* Wait for chip to release pin */
udelay(TOTAL_READ_LOW-READ_TIMEOUT);
/* LSb first */
Result|=Value<<i;
/* E_DEBUG("Read %d\n",Value); */
}
E_DEBUG("Read byte 0x%x\n",Result);
return(Result);
}
static void
write_cpu_byte(u8 Byte){
/* Write a single byte to EEPROM
Write LSb first */
int i;
int Value;
u32 Flags;
E_DEBUG("Writing byte 0x%x\n",Byte);
for(i=0;i<8;i++){
/* Small delay between pulses */
udelay(1);
Value = Byte&1;
#ifdef __KERNEL__
/* Disable irq */
save_flags(Flags);
cli();
#endif
/* Pull down pin short time for a 1, long time for a 0
See page 26 in data sheet */
WRITE_PORT(0);
if(Value){
/* Write a 1 */
udelay(WRITE_1_LOW);
}
else{
/* Write a 0 */
udelay(WRITE_0_LOW);
}
WRITE_PORT(1);
#ifdef __KERNEL__
/* Enable irq */
restore_flags(Flags);
#endif
if(Value)
/* Wait for chip to read the 1 */
udelay(TOTAL_WRITE_LOW-WRITE_1_LOW);
/* E_DEBUG("Wrote %d\n",Value); */
Byte>>=1;
}
}
int ee_do_cpu_command( u8 *Tx, int Tx_len, u8 *Rx, int Rx_len, int Send_skip ){
/* Execute this command string, including
giving reset and setting to idle after command
if Rx_len is set, we read out data from EEPROM */
int i;
E_DEBUG("Command, Tx_len %d, Rx_len %d\n", Tx_len, Rx_len );
if(do_cpu_reset()){
/* Failed! */
return(-EIO);
}
if(Send_skip)
/* Always send SKIP_ROM first to tell chip we are sending a command,
except when we read out rom data for chip */
write_cpu_byte(SKIP_ROM);
/* Always have Tx data */
for(i=0;i<Tx_len;i++){
write_cpu_byte(Tx[i]);
}
if(Rx_len){
for(i=0;i<Rx_len;i++){
Rx[i]=read_cpu_byte();
}
}
set_idle();
E_DEBUG("Command done\n");
return(0);
}
int ee_init_cpu_data(void){
int i;
u8 Tx[10];
/* Leave it floting since altera is driving the same pin */
set_idle();
/* Copy all User EEPROM data to scratchpad */
for(i=0;i<USER_PAGES;i++){
Tx[0]=RECALL_MEMORY;
Tx[1]=EE_USER_PAGE_0+i;
if(ee_do_cpu_command(Tx,2,NULL,0,TRUE)) return(-EIO);
}
/* Make sure chip doesnt store measurements in NVRAM */
Tx[0]=WRITE_SCRATCHPAD;
Tx[1]=0; /* Page */
Tx[2]=9;
if(ee_do_cpu_command(Tx,3,NULL,0,TRUE)) return(-EIO);
Tx[0]=COPY_SCRATCHPAD;
if(ee_do_cpu_command(Tx,2,NULL,0,TRUE)) return(-EIO);
for(i=0;i<10;i++){
udelay(1000);
}
return(0);
}
/* By Thomas.Lange@Corelatus.com 001025 */
/* Definitions for EEPROM/VOLT METER DS2438 */
/* Copyright (C) 2000-2005 Corelatus AB */
#ifndef INCeeaccessh
#define INCeeaccessh
#include <asm/types.h>
#include "ee_dev.h"
int ee_do_cpu_command( u8 *Tx, int Tx_len, u8 *Rx, int Rx_len, int Send_skip );
int ee_init_cpu_data(void);
int ee_crc_ok( u8 *Buffer, int Len, u8 Crc );
/* Defs for altera reg */
#define EE_WRITE_SHIFT 8 /* bits to shift left */
#define EE_READ_SHIFT 16 /* bits to shift left */
#define EE_DONE 0x80000000
#define EE_BUSY 0x40000000
#define EE_ERROR 0x20000000
/* Commands */
#define EE_CMD_NOP 0
#define EE_CMD_INIT_RES 1
#define EE_CMD_WR_BYTE 2
#define EE_CMD_RD_BYTE 3
#endif /* INCeeaccessh */
/* By Thomas.Lange@Corelatus.com 001025 */
/* Definitions for EEPROM/VOLT METER DS2438 */
/* Copyright (C) 2000-2005 Corelatus AB */
/* 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
*/
#ifndef INCeedevh
#define INCeedevh
#define E_DEBUG(fmt,args...) if( Debug ) printk(KERN_DEBUG"EE: " fmt, ##args)
/* MIPS */
#define WRITE_PORT(Value) write_gpio_data(Value)
#define READ_PORT (gpio_read()&GPIO_EEDQ)
/* 64 bytes chip */
#define EE_CHIP_SIZE 64
/* Board with new current resistor */
#define EE_GTH_0304 1
/* new dsp and 64 MB SDRAM */
#define EE_DSP_64 0x10
/* microsecs */
/* Pull line down at least this long for reset pulse */
#define RESET_LOW_TIME 490
/* Read presence pulse after we release reset pulse */
#define PRESENCE_TIMEOUT 100
#define PRESENCE_LOW_TIME 200
#define WRITE_0_LOW 60
#define WRITE_1_LOW 1
#define TOTAL_WRITE_LOW 60
#define READ_LOW 1
#define READ_TIMEOUT 10
#define TOTAL_READ_LOW 70
/* Rom function commands */
#define READ_ROM 0x33
#define MATCH_ROM 0x55
#define SKIP_ROM 0xCC
#define SEARCH_ROM 0xF0
/* Memory_command_function */
#define WRITE_SCRATCHPAD 0x4E
#define READ_SCRATCHPAD 0xBE
#define COPY_SCRATCHPAD 0x48
#define RECALL_MEMORY 0xB8
#define CONVERT_TEMP 0x44
#define CONVERT_VOLTAGE 0xB4
/* Chip is divided in 8 pages, 8 bytes each */
#define EE_PAGE_SIZE 8
/* All chip data we want are in page 0 */
/* Bytes in page 0 */
#define EE_P0_STATUS 0
#define EE_P0_TEMP_LSB 1
#define EE_P0_TEMP_MSB 2
#define EE_P0_VOLT_LSB 3
#define EE_P0_VOLT_MSB 4
#define EE_P0_CURRENT_LSB 5
#define EE_P0_CURRENT_MSB 6
/* 40 byte user data is located at page 3-7 */
#define EE_USER_PAGE_0 3
#define USER_PAGES 5
/* Layout of gth user pages usage */
/* Bytes 0-16 ethernet addr in ascii ( len 17 ) */
#define EE_ETHERNET_OFFSET 0
#endif /* INCeedevh */
/*
* (C) Copyright 2005
* 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,