Add support for gth2 board
Patch by Thomas Lange, Aug 11 2005
diff --git a/CHANGELOG b/CHANGELOG
index dd73e0b..fa48cab 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -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
diff --git a/CREDITS b/CREDITS
index f91fa3e..c35f07b 100644
--- a/CREDITS
+++ b/CREDITS
@@ -253,7 +253,7 @@
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
diff --git a/MAINTAINERS b/MAINTAINERS
index 9a2f472..aaf91cd 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -489,6 +489,7 @@
Thomas Lange <thomas@corelatus.se>
dbau1x00 MIPS32 Au1000
+ gth2 MIPS32 Au1000
#########################################################################
# Nios-32 Systems: #
diff --git a/MAKEALL b/MAKEALL
index 0594c93..3eee323 100755
--- a/MAKEALL
+++ b/MAKEALL
@@ -226,7 +226,7 @@
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}"
diff --git a/Makefile b/Makefile
index 7e50fbe..9db3bf2 100644
--- a/Makefile
+++ b/Makefile
@@ -1652,6 +1652,11 @@
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
#########################################################################
diff --git a/board/gth2/Makefile b/board/gth2/Makefile
new file mode 100644
index 0000000..8ef3a51
--- /dev/null
+++ b/board/gth2/Makefile
@@ -0,0 +1,41 @@
+#
+# (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) > $@
+
+sinclude .depend
+
+#########################################################################
diff --git a/board/gth2/config.mk b/board/gth2/config.mk
new file mode 100644
index 0000000..6d21ba1
--- /dev/null
+++ b/board/gth2/config.mk
@@ -0,0 +1,42 @@
+#
+# (C) Copyright 2004-2005
+# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+#
+# See file CREDITS for list of people who contributed to this
+# project.
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License as
+# published by the Free Software Foundation; either version 2 of
+# the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+# MA 02111-1307 USA
+#
+
+#
+# AMD Alchemy AU1000, MIPS32 core
+#
+
+ifeq ($(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
+
diff --git a/board/gth2/ee_access.c b/board/gth2/ee_access.c
new file mode 100644
index 0000000..e293139
--- /dev/null
+++ b/board/gth2/ee_access.c
@@ -0,0 +1,347 @@
+/* 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);
+}
diff --git a/board/gth2/ee_access.h b/board/gth2/ee_access.h
new file mode 100644
index 0000000..c21730e
--- /dev/null
+++ b/board/gth2/ee_access.h
@@ -0,0 +1,30 @@
+/* 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 */
diff --git a/board/gth2/ee_dev.h b/board/gth2/ee_dev.h
new file mode 100644
index 0000000..acc3418
--- /dev/null
+++ b/board/gth2/ee_dev.h
@@ -0,0 +1,96 @@
+/* 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 */
diff --git a/board/gth2/flash.c b/board/gth2/flash.c
new file mode 100644
index 0000000..f96edff
--- /dev/null
+++ b/board/gth2/flash.c
@@ -0,0 +1,43 @@
+/*
+ * (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 <common.h>
+
+flash_info_t flash_info[CFG_MAX_FLASH_BANKS]; /* info for FLASH chips */
+
+/*-----------------------------------------------------------------------
+ * flash_init()
+ *
+ * sets up flash_info and returns size of FLASH (bytes)
+ */
+unsigned long flash_init (void)
+{
+ printf ("Skipping flash_init\n");
+ return (0);
+}
+
+int write_buff (flash_info_t * info, uchar * src, ulong addr, ulong cnt)
+{
+ printf ("write_buff not implemented\n");
+ return (-1);
+}
diff --git a/board/gth2/gth2.c b/board/gth2/gth2.c
new file mode 100644
index 0000000..77fc5b4
--- /dev/null
+++ b/board/gth2/gth2.c
@@ -0,0 +1,435 @@
+/*
+ * (C) Copyright 2005
+ * Thomas.Lange@corelatus.se
+ *
+ * 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 <command.h>
+#include <asm/au1x00.h>
+#include <asm/addrspace.h>
+#include <asm/mipsregs.h>
+#include <watchdog.h>
+
+#include "ee_access.h"
+
+static int wdi_status = 0;
+
+unsigned long mips_io_port_base = 0;
+
+#define SDRAM_SIZE ((64*1024*1024)-(12*4096))
+
+
+#define SERIAL_LOG_BUFFER KSEG1ADDR(SDRAM_SIZE + (8*4096))
+
+void inline log_serial_char(char c){
+ char *serial_log_buffer = (char*)SERIAL_LOG_BUFFER;
+ int serial_log_offset;
+ u32 *serial_log_offsetp = (u32*)SERIAL_LOG_BUFFER;
+
+ serial_log_offset = *serial_log_offsetp;
+
+ *(serial_log_buffer + serial_log_offset) = c;
+
+ serial_log_offset++;
+
+ if(serial_log_offset >= 4096){
+ serial_log_offset = 4;
+ }
+ *serial_log_offsetp = serial_log_offset;
+}
+
+void init_log_serial(void){
+ char *serial_log_buffer = (char*)SERIAL_LOG_BUFFER;
+ u32 *serial_log_offsetp = (u32*)SERIAL_LOG_BUFFER;
+
+ /* Copy buffer from last run */
+ memcpy(serial_log_buffer + 4096,
+ serial_log_buffer,
+ 4096);
+
+ memset(serial_log_buffer, 0, 4096);
+
+ *serial_log_offsetp = 4;
+}
+
+
+void hw_watchdog_reset(void){
+ volatile u32 *sys_outputset = (volatile u32*)SYS_OUTPUTSET;
+ volatile u32 *sys_outputclear = (volatile u32*)SYS_OUTPUTCLR;
+ if(wdi_status){
+ *sys_outputset = GPIO_CPU_LED|GPIO_WDI;
+ wdi_status = 0;
+ }
+ else{
+ *sys_outputclear = GPIO_CPU_LED|GPIO_WDI;
+ wdi_status = 1;
+ }
+}
+
+long int initdram(int board_type)
+{
+ /* Sdram is setup by assembler code */
+ /* If memory could be changed, we should return the true value here */
+
+ WATCHDOG_RESET();
+
+ return (SDRAM_SIZE);
+}
+
+/* In cpu/mips/cpu.c */
+void write_one_tlb( int index, u32 pagemask, u32 hi, u32 low0, u32 low1 );
+
+void set_ledcard(u32 value){
+ /* Clock 24 bits to led card */
+ int i;
+ volatile u32 *sys_outputset = (volatile u32*)SYS_OUTPUTSET;
+ volatile u32 *sys_outputclr = (volatile u32*)SYS_OUTPUTCLR;
+
+ /* Start with known values */
+ *sys_outputclr = GPIO_LEDCLK|GPIO_LEDD;
+
+ for(i=0;i<24;i++){
+ if(value&0x00800000){
+ *sys_outputset = GPIO_LEDD;
+ }
+ else{
+ *sys_outputclr = GPIO_LEDD;
+ }
+ udelay(1);
+ *sys_outputset = GPIO_LEDCLK;
+ udelay(1);
+ *sys_outputclr = GPIO_LEDCLK;
+ udelay(1);
+
+ value<<=1;
+ }
+ /* Data is enable output */
+ *sys_outputset = GPIO_LEDD;
+}
+
+int checkboard (void)
+{
+ volatile u32 *sys_counter = (volatile u32*)SYS_COUNTER_CNTRL;
+ volatile u32 *sys_outputset = (volatile u32*)SYS_OUTPUTSET;
+ volatile u32 *sys_outputclr = (volatile u32*)SYS_OUTPUTCLR;
+ u32 proc_id;
+
+ WATCHDOG_RESET();
+
+ *sys_counter = 0x100; /* Enable 32 kHz oscillator for RTC/TOY */
+
+ proc_id = read_32bit_cp0_register(CP0_PRID);
+
+ switch (proc_id >> 24) {
+ case 0:
+ puts ("Board: GTH2\n");
+ printf ("CPU: Au1000 500 MHz, id: 0x%02x, rev: 0x%02x\n",
+ (proc_id >> 8) & 0xFF, proc_id & 0xFF);
+ break;
+ default:
+ printf ("Unsupported cpu %d, proc_id=0x%x\n", proc_id >> 24, proc_id);
+ }
+#ifdef CONFIG_IDE_PCMCIA
+ /* PCMCIA is on a 36 bit physical address.
+ We need to map it into a 32 bit addresses */
+ write_one_tlb(20, /* index */
+ 0x01ffe000, /* Pagemask, 16 MB pages */
+ CFG_PCMCIA_IO_BASE, /* Hi */
+ 0x3C000017, /* Lo0 */
+ 0x3C200017); /* Lo1 */
+
+ write_one_tlb(21, /* index */
+ 0x01ffe000, /* Pagemask, 16 MB pages */
+ CFG_PCMCIA_ATTR_BASE, /* Hi */
+ 0x3D000017, /* Lo0 */
+ 0x3D200017); /* Lo1 */
+
+ write_one_tlb(22, /* index */
+ 0x01ffe000, /* Pagemask, 16 MB pages */
+ CFG_PCMCIA_MEM_ADDR, /* Hi */
+ 0x3E000017, /* Lo0 */
+ 0x3E200017); /* Lo1 */
+
+#endif /* CONFIG_IDE_PCMCIA */
+
+ /* Wait for GPIO ports to become stable */
+ udelay(5000); /* FIXME */
+
+ /* Release reset of ethernet PHY chips */
+ /* Always do this, because linux does not know about it */
+ *sys_outputset = GPIO_ERESET;
+
+ /* Kill FPGA:s */
+ *sys_outputclr = GPIO_CACONFIG|GPIO_DPACONFIG;
+ udelay(2);
+ *sys_outputset = GPIO_CACONFIG|GPIO_DPACONFIG;
+
+ /* Turn front led yellow */
+ set_ledcard(0x00100000);
+
+ return 0;
+}
+
+#define POWER_OFFSET 0xF0000
+#define SW_WATCHDOG_REASON 13
+
+#define BOOTDATA_OFFSET 0xF8000
+#define MAX_ATTEMPTS 5
+
+#define FAILSAFE_BOOT 1
+#define SYSTEM_BOOT 2
+#define SYSTEM2_BOOT 3
+
+#define WRITE_FLASH16(a, d) \
+do \
+{ \
+ *((volatile u16 *) (a)) = (d);\
+ } while(0)
+
+static void write_bootdata (volatile u16 * addr, u8 System, u8 Count)
+{
+ u16 data;
+ volatile u16 *flash = (u16 *) (CFG_FLASH_BASE);
+
+ switch(System){
+ case FAILSAFE_BOOT:
+ printf ("Setting failsafe boot in flash\n");
+ break;
+ case SYSTEM_BOOT:
+ printf ("Setting system boot in flash\n");
+ break;
+ case SYSTEM2_BOOT:
+ printf ("Setting system2 boot in flash\n");
+ break;
+ default:
+ printf ("Invalid system data %u, setting failsafe\n", System);
+ System = FAILSAFE_BOOT;
+ }
+
+ if ((Count < 1) | (Count > MAX_ATTEMPTS)) {
+ printf ("Invalid boot count %u, setting 1\n", Count);
+ Count = 1;
+ }
+
+ printf ("Boot attempt %d\n", Count);
+
+ data = (System << 8) | Count;
+ /* AMD 16 bit */
+ WRITE_FLASH16 (&flash[0x555], 0xAAAA);
+ WRITE_FLASH16 (&flash[0x2AA], 0x5555);
+ WRITE_FLASH16 (&flash[0x555], 0xA0A0);
+
+ WRITE_FLASH16 (addr, data);
+}
+
+static int random_system(void){
+ /* EEPROM read failed. Just try to choose one
+ system release and hope it works */
+
+ /* FIXME */
+ return(SYSTEM_BOOT);
+}
+
+static int switch_system(int old_system){
+ u8 Rx[10];
+ u8 Tx[5];
+ int valid_release;
+
+ if(old_system==FAILSAFE_BOOT){
+ /* Find out which system release to use */
+
+ /* Copy from nvram to scratchpad */
+ Tx[0] = RECALL_MEMORY;
+ Tx[1] = 7; /* Page */
+ if (ee_do_cpu_command (Tx, 2, NULL, 0, 1)) {
+ printf ("EE user page 7 recall failed\n");
+ return (random_system());
+ }
+
+ Tx[0] = READ_SCRATCHPAD;
+ if (ee_do_cpu_command (Tx, 2, Rx, 9, 1)) {
+ printf ("EE user page 7 read failed\n");
+ return (random_system());
+ }
+ /* Crc in 9:th byte */
+ if (!ee_crc_ok (Rx, 8, *(Rx + 8))) {
+ printf ("EE read failed, page 7. CRC error\n");
+ return (random_system());
+ }
+
+ valid_release = Rx[7];
+ if((valid_release==0xFF)|
+ ((valid_release&1) == 0)){
+ return(SYSTEM_BOOT);
+ }
+ else{
+ return(SYSTEM2_BOOT);
+ }
+ }
+ else{
+ return(FAILSAFE_BOOT);
+ }
+}
+
+static void check_boot_tries (void)
+{
+ /* Count the number of boot attemps
+ switch system if too many */
+
+ int i;
+ volatile u16 *addr;
+ volatile u16 data;
+ u8 system = FAILSAFE_BOOT;
+ u8 count;
+
+ addr = (u16 *) (CFG_FLASH_BASE + BOOTDATA_OFFSET);
+
+ if (*addr == 0xFFFF) {
+ printf ("*** No bootdata exists. ***\n");
+ write_bootdata (addr, FAILSAFE_BOOT, 1);
+ } else {
+ /* Search for latest written bootdata */
+ i = 0;
+ while ((*(addr + 1) != 0xFFFF) & (i < 8000)) {
+ addr++;
+ i++;
+ }
+ if (i >= 8000) {
+ /* Whoa, dont write any more */
+ printf ("*** No bootdata found. Not updating flash***\n");
+ } else {
+ /* See how many times we have tried to boot real system */
+ data = *addr;
+ system = data >> 8;
+ count = data & 0xFF;
+ if ((system != SYSTEM_BOOT) &
+ (system != SYSTEM2_BOOT) &
+ (system != FAILSAFE_BOOT)) {
+ printf ("*** Wrong system %d\n", system);
+ system = FAILSAFE_BOOT;
+ count = 1;
+ } else {
+ switch (count) {
+ case 0:
+ case 1:
+ case 2:
+ case 3:
+ case 4:
+ /* Try same system again if needed */
+ count++;
+ break;
+
+ case 5:
+ /* Switch system and reset tries */
+ count = 1;
+ system = switch_system(system);
+ printf ("***Too many boot attempts, switching system***\n");
+ break;
+ default:
+ /* Switch system, start over and hope it works */
+ printf ("***Unexpected data on addr 0x%x, %u***\n",
+ (u32) addr, data);
+ count = 1;
+ system = switch_system(system);
+ }
+ }
+ write_bootdata (addr + 1, system, count);
+ }
+ }
+ switch(system){
+ case FAILSAFE_BOOT:
+ printf ("Booting failsafe system\n");
+ setenv ("bootargs", "panic=1 root=/dev/hda7");
+ setenv ("bootcmd", "ide reset;disk 0x81000000 0:5;run addmisc;bootm");
+ break;
+
+ case SYSTEM_BOOT:
+ printf ("Using normal system\n");
+ setenv ("bootargs", "panic=1 root=/dev/hda4");
+ setenv ("bootcmd", "ide reset;disk 0x81000000 0:2;run addmisc;bootm");
+ break;
+
+ case SYSTEM2_BOOT:
+ printf ("Using normal system2\n");
+ setenv ("bootargs", "panic=1 root=/dev/hda9");
+ setenv ("bootcmd", "ide reset;disk 0x81000000 0:8;run addmisc;bootm");
+ break;
+ default:
+ printf ("Invalid system %d\n", system);
+ printf ("Hanging\n");
+ while(1);
+ }
+}
+
+int misc_init_r(void){
+ u8 Rx[80];
+ u8 Tx[5];
+ int page;
+ int read = 0;
+
+ WATCHDOG_RESET();
+
+ if (ee_init_cpu_data ()) {
+ printf ("EEPROM init failed\n");
+ return (0);
+ }
+
+ /* Check which release to boot */
+ check_boot_tries ();
+
+ /* Read the pages where ethernet address is stored */
+
+ for (page = EE_USER_PAGE_0; page <= EE_USER_PAGE_0 + 2; page++) {
+ /* Copy from nvram to scratchpad */
+ Tx[0] = RECALL_MEMORY;
+ Tx[1] = page;
+ if (ee_do_cpu_command (Tx, 2, NULL, 0, 1)) {
+ printf ("EE user page %d recall failed\n", page);
+ return (0);
+ }
+
+ Tx[0] = READ_SCRATCHPAD;
+ if (ee_do_cpu_command (Tx, 2, Rx + read, 9, 1)) {
+ printf ("EE user page %d read failed\n", page);
+ return (0);
+ }
+ /* Crc in 9:th byte */
+ if (!ee_crc_ok (Rx + read, 8, *(Rx + read + 8))) {
+ printf ("EE read failed, page %d. CRC error\n", page);
+ return (0);
+ }
+ read += 8;
+ }
+
+ /* Add eos after eth addr */
+ Rx[17] = 0;
+
+ printf ("Ethernet addr read from eeprom: %s\n\n", Rx);
+
+ if ((Rx[2] != ':') |
+ (Rx[5] != ':') |
+ (Rx[8] != ':') | (Rx[11] != ':') | (Rx[14] != ':')) {
+ printf ("*** ethernet addr invalid, using default ***\n");
+ } else {
+ setenv ("ethaddr", Rx);
+ }
+ return (0);
+}
diff --git a/board/gth2/lowlevel_init.S b/board/gth2/lowlevel_init.S
new file mode 100644
index 0000000..62e3657
--- /dev/null
+++ b/board/gth2/lowlevel_init.S
@@ -0,0 +1,454 @@
+/* Memory sub-system initialization code */
+
+#include <config.h>
+#include <version.h>
+#include <asm/regdef.h>
+#include <asm/au1x00.h>
+#include <asm/mipsregs.h>
+
+#define CP0_Config0 $16
+#define MEM_1MS ((CFG_MHZ) * 1000)
+#define GPIO_RJ1LY (1<<22)
+#define GPIO_CFRESET (1<<10)
+
+ .text
+ .set noreorder
+ .set mips32
+
+ .globl lowlevel_init
+lowlevel_init:
+ /*
+ * Step 2) Establish Status Register
+ * (set BEV, clear ERL, clear EXL, clear IE)
+ */
+ li t1, 0x00400000
+ mtc0 t1, CP0_STATUS
+
+ /*
+ * Step 3) Establish CP0 Config0
+ * (set OD, set K0=3)
+ */
+ li t1, 0x00080003
+ mtc0 t1, CP0_CONFIG
+
+ /*
+ * Step 4) Disable Watchpoint facilities
+ */
+ li t1, 0x00000000
+ mtc0 t1, CP0_WATCHLO
+ mtc0 t1, CP0_IWATCHLO
+ /*
+ * Step 5) Disable the performance counters
+ */
+ mtc0 zero, CP0_PERFORMANCE
+ nop
+
+ /*
+ * Step 6) Establish EJTAG Debug register
+ */
+ mtc0 zero, CP0_DEBUG
+ nop
+
+ /*
+ * Step 7) Establish Cause
+ * (set IV bit)
+ */
+ li t1, 0x00800000
+ mtc0 t1, CP0_CAUSE
+
+ /* Establish Wired (and Random) */
+ mtc0 zero, CP0_WIRED
+ nop
+
+ /* No workaround if running from ram */
+ lui t0, 0xffc0
+ lui t3, 0xbfc0
+ and t1, ra, t0
+ bne t1, t3, noCacheJump
+ nop
+
+ /*** From AMD YAMON ***/
+ /*
+ * Step 8) Initialize the caches
+ */
+ li t0, (16*1024)
+ li t1, 32
+ li t2, 0x80000000
+ addu t3, t0, t2
+cacheloop:
+ cache 0, 0(t2)
+ cache 1, 0(t2)
+ addu t2, t1
+ bne t2, t3, cacheloop
+ nop
+
+ /* Save return address */
+ move t3, ra
+
+ /* Run from cacheable space now */
+ bal cachehere
+ nop
+cachehere:
+ li t1, ~0x20000000 /* convert to KSEG0 */
+ and t0, ra, t1
+ addi t0, 5*4 /* 5 insns beyond cachehere */
+ jr t0
+ nop
+
+ /* Restore return address */
+ move ra, t3
+
+ /*
+ * Step 9) Initialize the TLB
+ */
+ li t0, 0 # index value
+ li t1, 0x00000000 # entryhi value
+ li t2, 32 # 32 entries
+
+tlbloop:
+ /* Probe TLB for matching EntryHi */
+ mtc0 t1, CP0_ENTRYHI
+ tlbp
+ nop
+
+ /* Examine Index[P], 1=no matching entry */
+ mfc0 t3, CP0_INDEX
+ li t4, 0x80000000
+ and t3, t4, t3
+ addiu t1, t1, 1 # increment t1 (asid)
+ beq zero, t3, tlbloop
+ nop
+
+ /* Initialize the TLB entry */
+ mtc0 t0, CP0_INDEX
+ mtc0 zero, CP0_ENTRYLO0
+ mtc0 zero, CP0_ENTRYLO1
+ mtc0 zero, CP0_PAGEMASK
+ tlbwi
+
+ /* Do it again */
+ addiu t0, t0, 1
+ bne t0, t2, tlbloop
+ nop
+
+ /* First setup pll:s to make serial work ok */
+ /* We have a 12.5 MHz crystal */
+ li t0, SYS_CPUPLL
+ li t1, 0x28 /* CPU clock, 500 MHz */
+ sw t1, 0(t0)
+ sync
+ nop
+ nop
+
+ /* wait 1mS for clocks to settle */
+ li t1, MEM_1MS
+1: add t1, -1
+ bne t1, zero, 1b
+ nop
+ /* Setup AUX PLL */
+ li t0, SYS_AUXPLL
+ li t1, 0
+ sw t1, 0(t0) /* aux pll */
+ sync
+
+ /* Static memory controller */
+ /* RCE0 - can not change while fetching, do so from icache */
+ move t2, ra /* Store return address */
+ bal getAddr
+ nop
+
+getAddr:
+ move t1, ra
+ move ra, t2 /* Move return addess back */
+
+ cache 0x14,0(t1)
+ cache 0x14,32(t1)
+ /*** /From YAMON ***/
+
+noCacheJump:
+
+ /* Static memory controller */
+
+ /* RCE0 AMD 29LV800 Flash */
+ li t0, MEM_STCFG0
+ li t1, 0x00000243
+ sw t1, 0(t0)
+
+ li t0, MEM_STTIME0
+ li t1, 0x040181D7 /* FIXME */
+ sw t1, 0(t0)
+
+ li t0, MEM_STADDR0
+ li t1, 0x11E03F80
+ sw t1, 0(t0)
+
+ /* RCE1 PCMCIA 250ns */
+ li t0, MEM_STCFG1
+ li t1, 0x00000002
+ sw t1, 0(t0)
+
+ li t0, MEM_STTIME1
+ li t1, 0x280E3E07
+ sw t1, 0(t0)
+
+ li t0, MEM_STADDR1
+ li t1, 0x10000000
+ sw t1, 0(t0)
+
+ /* RCE2 CP Altera */
+ li t0, MEM_STCFG2
+ li t1, 0x00000280 /* BE, EW */
+ sw t1, 0(t0)
+
+ li t0, MEM_STTIME2
+ li t1, 0x0303000c
+ sw t1, 0(t0)
+
+ li t0, MEM_STADDR2
+ li t1, 0x10c03f80 /* 1 MB */
+ sw t1, 0(t0)
+
+ /* RCE3 DP Altera */
+ li t0, MEM_STCFG3
+ li t1, 0x00000280 /* BE, EW */
+ sw t1, 0(t0)
+
+ li t0, MEM_STTIME3
+ li t1, 0x0303000c
+ sw t1, 0(t0)
+
+ li t0, MEM_STADDR3
+ li t1, 0x10e03f80 /* 1 MB */
+ sw t1, 0(t0)
+
+ sync
+
+ /* Set peripherals to a known state */
+ li t0, IC0_CFG0CLR
+ li t1, 0xFFFFFFFF
+ sw t1, 0(t0)
+
+ li t0, IC0_CFG0CLR
+ sw t1, 0(t0)
+
+ li t0, IC0_CFG1CLR
+ sw t1, 0(t0)
+
+ li t0, IC0_CFG2CLR
+ sw t1, 0(t0)
+
+ li t0, IC0_SRCSET
+ sw t1, 0(t0)
+
+ li t0, IC0_ASSIGNSET
+ sw t1, 0(t0)
+
+ li t0, IC0_WAKECLR
+ sw t1, 0(t0)
+
+ li t0, IC0_RISINGCLR
+ sw t1, 0(t0)
+
+ li t0, IC0_FALLINGCLR
+ sw t1, 0(t0)
+
+ li t0, IC0_TESTBIT
+ li t1, 0x00000000
+ sw t1, 0(t0)
+ sync
+
+ li t0, IC1_CFG0CLR
+ li t1, 0xFFFFFFFF
+ sw t1, 0(t0)
+
+ li t0, IC1_CFG0CLR
+ sw t1, 0(t0)
+
+ li t0, IC1_CFG1CLR
+ sw t1, 0(t0)
+
+ li t0, IC1_CFG2CLR
+ sw t1, 0(t0)
+
+ li t0, IC1_SRCSET
+ sw t1, 0(t0)
+
+ li t0, IC1_ASSIGNSET
+ sw t1, 0(t0)
+
+ li t0, IC1_WAKECLR
+ sw t1, 0(t0)
+
+ li t0, IC1_RISINGCLR
+ sw t1, 0(t0)
+
+ li t0, IC1_FALLINGCLR
+ sw t1, 0(t0)
+
+ li t0, IC1_TESTBIT
+ li t1, 0x00000000
+ sw t1, 0(t0)
+ sync
+
+ li t0, SYS_FREQCTRL0
+ li t1, 0x00000000
+ sw t1, 0(t0)
+
+ li t0, SYS_FREQCTRL1
+ li t1, 0x00000000
+ sw t1, 0(t0)
+
+ li t0, SYS_CLKSRC
+ li t1, 0x00000000
+ sw t1, 0(t0)
+
+ li t0, SYS_PININPUTEN
+ li t1, 0x00000000
+ sw t1, 0(t0)
+ sync
+
+ li t0, 0xB1100100
+ li t1, 0x00000000
+ sw t1, 0(t0)
+
+ li t0, 0xB1400100
+ li t1, 0x00000000
+ sw t1, 0(t0)
+
+
+ li t0, SYS_WAKEMSK
+ li t1, 0x00000000
+ sw t1, 0(t0)
+
+ li t0, SYS_WAKESRC
+ li t1, 0x00000000
+ sw t1, 0(t0)
+
+ /* wait 1mS before setup */
+ li t1, MEM_1MS
+1: add t1, -1
+ bne t1, zero, 1b
+ nop
+
+
+/* SDCS 0 SDRAM */
+ li t0, MEM_SDMODE0
+ li t1, 0x592CD1
+ sw t1, 0(t0)
+
+ li t0, MEM_SDMODE1
+ li t1, 0x00000000
+ sw t1, 0(t0)
+
+ li t0, MEM_SDMODE2
+ li t1, 0x00000000
+ sw t1, 0(t0)
+
+/* 64 MB SDRAM at addr 0 */
+ li t0, MEM_SDADDR0
+ li t1, 0x001003F0
+ sw t1, 0(t0)
+
+
+ li t0, MEM_SDADDR1
+ li t1, 0x00000000
+ sw t1, 0(t0)
+
+ li t0, MEM_SDADDR2
+ li t1, 0x00000000
+ sw t1, 0(t0)
+
+ sync
+
+ li t0, MEM_SDREFCFG
+ li t1, 0x880007A1 /* Disable */
+ sw t1, 0(t0)
+ sync
+
+ li t0, MEM_SDPRECMD
+ sw zero, 0(t0)
+ sync
+
+ li t0, MEM_SDAUTOREF
+ sw zero, 0(t0)
+ sync
+ sw zero, 0(t0)
+ sync
+
+ li t0, MEM_SDREFCFG
+ li t1, 0x8A0007A1 /* Enable */
+ sw t1, 0(t0)
+ sync
+
+ li t0, MEM_SDWRMD0
+ li t1, 0x00000023
+ sw t1, 0(t0)
+ sync
+
+ /* wait 1mS after setup */
+ li t1, MEM_1MS
+1: add t1, -1
+ bne t1, zero, 1b
+ nop
+
+ /* Setup GPIO pins */
+
+ li t0, SYS_PINFUNC
+ li t1, 0x00007025 /* 0x8080 */
+ sw t1, 0(t0)
+
+ li t0, SYS_TRIOUTCLR
+ li t1, 0xFFFFFFFF /* 0x1FFF */
+ sw t1, 0(t0)
+
+ /* Turn yellow front led on */
+ /* Release reset on CF */
+ li t0, SYS_OUTPUTCLR
+ li t1, GPIO_RJ1LG
+ sw t1, 0(t0)
+ li t0, SYS_OUTPUTSET
+ li t1, GPIO_RJ1LY|GPIO_CFRESET
+ sw t1, 0(t0)
+ sync
+ j clearmem
+ nop
+
+ .globl memtest
+memtest:
+ /* Fill memory with address */
+ li t0, 0x80000000
+ li t1, 0xFFF000 /* 64 MB */
+mt0: sw t0, 0(t0)
+ add t1, -1
+ add t0, 4
+ bne t1, zero, mt0
+ nop
+ nop
+ /* Verify addr */
+ li t0, 0x80000000
+ li t1, 0xFFF000 /* 64 MB */
+mt1: lw t2, 0(t0)
+ bne t0, t2, memhang
+ add t1, -1
+ add t0, 4
+ bne t1, zero, mt1
+ nop
+ nop
+ .globl clearmem
+clearmem:
+ /* Clear memory */
+ li t0, 0x80000000
+ li t1, 0xFFF000 /* 64 MB */
+mtc: sw zero, 0(t0)
+ add t1, -1
+ add t0, 4
+ bne t1, zero, mtc
+ nop
+ nop
+memtestend:
+ j ra
+ nop
+
+memhang:
+ b memhang
+ nop
diff --git a/board/gth2/u-boot.lds b/board/gth2/u-boot.lds
new file mode 100644
index 0000000..8ba0b6d
--- /dev/null
+++ b/board/gth2/u-boot.lds
@@ -0,0 +1,68 @@
+/*
+ * (C) Copyright 2003-2005
+ * Wolfgang Denk 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
+ */
+
+/*
+OUTPUT_FORMAT("elf32-bigmips", "elf32-bigmips", "elf32-bigmips")
+*/
+OUTPUT_FORMAT("elf32-tradbigmips", "elf32-tradbigmips", "elf32-tradbigmips")
+OUTPUT_ARCH(mips)
+ENTRY(_start)
+SECTIONS
+{
+ . = 0x00000000;
+
+ . = ALIGN(4);
+ .text :
+ {
+ *(.text)
+ }
+
+ . = ALIGN(4);
+ .rodata : { *(.rodata) }
+
+ . = ALIGN(4);
+ .data : { *(.data) }
+
+ . = ALIGN(4);
+ .sdata : { *(.sdata) }
+
+ _gp = ALIGN(16);
+
+ __got_start = .;
+ .got : { *(.got) }
+ __got_end = .;
+
+ .sdata : { *(.sdata) }
+
+ __u_boot_cmd_start = .;
+ .u_boot_cmd : { *(.u_boot_cmd) }
+ __u_boot_cmd_end = .;
+
+ uboot_end_data = .;
+ num_got_entries = (__got_end - __got_start) >> 2;
+
+ . = ALIGN(4);
+ .sbss : { *(.sbss) }
+ .bss : { *(.bss) }
+ uboot_end = .;
+}
diff --git a/common/cmd_ide.c b/common/cmd_ide.c
index 41621ba..a415502 100644
--- a/common/cmd_ide.c
+++ b/common/cmd_ide.c
@@ -855,7 +855,7 @@
/* We only need to swap data if we are running on a big endian cpu. */
/* But Au1x00 cpu:s already swaps data in big endian mode! */
-#if defined(__LITTLE_ENDIAN) || defined(CONFIG_AU1X00)
+#if defined(__LITTLE_ENDIAN) || ( defined(CONFIG_AU1X00) && !defined(CONFIG_GTH2) )
#define input_swap_data(x,y,z) input_data(x,y,z)
#else
static void
@@ -881,8 +881,13 @@
debug("in input swap data base for read is %lx\n", (unsigned long) pbuf);
while (words--) {
+#ifdef __MIPS__
+ *dbuf++ = swab16p((u16*)pbuf);
+ *dbuf++ = swab16p((u16*)pbuf);
+#else
*dbuf++ = ld_le16(pbuf);
*dbuf++ = ld_le16(pbuf);
+#endif /* !MIPS */
}
#endif
}
diff --git a/include/asm-mips/au1x00.h b/include/asm-mips/au1x00.h
index 4e19dc4..a4e9947 100644
--- a/include/asm-mips/au1x00.h
+++ b/include/asm-mips/au1x00.h
@@ -119,6 +119,11 @@
return __ilog2(x & -x) + 1;
}
+#define gpio_set(Value) outl(Value, SYS_OUTPUTSET)
+#define gpio_clear(Value) outl(Value, SYS_OUTPUTCLR)
+#define gpio_read() inl(SYS_PINSTATERD)
+#define gpio_tristate(Value) outl(Value, SYS_TRIOUTCLR)
+
#endif /* !ASSEMBLY */
#ifdef CONFIG_PM
diff --git a/include/configs/gth2.h b/include/configs/gth2.h
new file mode 100644
index 0000000..77d2d56
--- /dev/null
+++ b/include/configs/gth2.h
@@ -0,0 +1,195 @@
+/*
+ * (C) Copyright 2005
+ * Thomas.Lange@corelatus.se
+ *
+ * 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
+ */
+
+/*
+ * This file contains the configuration parameters for the gth2 board.
+ */
+
+#ifndef __CONFIG_H
+#define __CONFIG_H
+
+#define CONFIG_MIPS32 1 /* MIPS32 CPU core */
+#define CONFIG_GTH2 1
+#define CONFIG_AU1X00 1 /* alchemy series cpu */
+
+#define CONFIG_AU1000 1
+
+#define CONFIG_MISC_INIT_R 1
+
+#define CONFIG_ETHADDR DE:AD:BE:EF:01:02 /* Ethernet address */
+
+#define CONFIG_BOOTDELAY 1 /* autoboot after 1 seconds */
+
+#define CONFIG_ENV_OVERWRITE 1 /* Allow change of ethernet address */
+
+#define CONFIG_BOOT_RETRY_TIME 5 /* Retry boot in 5 secs */
+
+#define CONFIG_RESET_TO_RETRY 1 /* If timeout waiting for command, perform a reset */
+
+#define CONFIG_BAUDRATE 115200
+
+/* valid baudrates */
+#define CFG_BAUDRATE_TABLE { 115200 }
+
+/* Only interrupt boot if space is pressed */
+/* If a long serial cable is connected but */
+/* other end is dead, garbage will be read */
+#define CONFIG_AUTOBOOT_KEYED 1
+#define CONFIG_AUTOBOOT_PROMPT "Press space to abort autoboot in %d second\n"
+#define CONFIG_AUTOBOOT_DELAY_STR "d"
+#define CONFIG_AUTOBOOT_STOP_STR " "
+
+#define CONFIG_TIMESTAMP /* Print image info with timestamp */
+#define CONFIG_BOOTARGS "panic=1"
+
+#define CONFIG_EXTRA_ENV_SETTINGS \
+ "addmisc=setenv bootargs $(bootargs) " \
+ "ethaddr=$(ethaddr) \0" \
+ "netboot=bootp;run addmisc;bootm\0" \
+ ""
+
+/* Boot from Compact flash partition 2 as default */
+#define CONFIG_BOOTCOMMAND "ide reset;disk 0x81000000 0:2;run addmisc;bootm"
+
+#define CONFIG_COMMANDS ((CONFIG_CMD_DFL | CFG_CMD_IDE | CFG_CMD_DHCP ) & \
+ ~(CFG_CMD_ENV | CFG_CMD_FAT | CFG_CMD_FLASH | CFG_CMD_FPGA | \
+ CFG_CMD_MII | CFG_CMD_LOADS | CFG_CMD_LOADB | CFG_CMD_ELF | \
+ CFG_CMD_BDI | CFG_CMD_BEDBUG | CFG_CMD_NFS | CFG_CMD_AUTOSCRIPT ))
+
+#include <cmd_confdefs.h>
+
+/*
+ * Miscellaneous configurable options
+ */
+#define CFG_LONGHELP /* undef to save memory */
+#define CFG_PROMPT "GTH2 # " /* Monitor Command Prompt */
+#define CFG_CBSIZE 256 /* Console I/O Buffer Size */
+#define CFG_PBSIZE (CFG_CBSIZE+sizeof(CFG_PROMPT)+16) /* Print Buffer Size */
+#define CFG_MAXARGS 16 /* max number of command args*/
+
+#define CFG_MALLOC_LEN 128*1024
+
+#define CFG_BOOTPARAMS_LEN 128*1024
+
+#define CFG_MHZ 500
+
+#define CFG_HZ (CFG_MHZ * 1000000) /* FIXME causes overflow in net.c */
+
+#define CFG_SDRAM_BASE 0x80000000 /* Cached addr */
+
+#define CFG_LOAD_ADDR 0x81000000 /* default load address */
+
+#define CFG_MEMTEST_START 0x80100000
+#define CFG_MEMTEST_END 0x83000000
+
+#define CONFIG_HW_WATCHDOG 1
+
+/*-----------------------------------------------------------------------
+ * FLASH and environment organization
+ */
+#define CFG_MAX_FLASH_BANKS 2 /* max number of memory banks */
+#define CFG_MAX_FLASH_SECT (128) /* max number of sectors on one chip */
+
+#define PHYS_FLASH 0xbfc00000 /* Flash Bank #1 */
+
+/* The following #defines are needed to get flash environment right */
+#define CFG_MONITOR_BASE TEXT_BASE
+#define CFG_MONITOR_LEN (192 << 10)
+
+#define CFG_INIT_SP_OFFSET 0x400000
+
+/* We boot from this flash, selected with dip switch */
+#define CFG_FLASH_BASE PHYS_FLASH
+
+/* timeout values are in ticks */
+#define CFG_FLASH_ERASE_TOUT (2 * CFG_HZ) /* Timeout for Flash Erase */
+#define CFG_FLASH_WRITE_TOUT (2 * CFG_HZ) /* Timeout for Flash Write */
+
+#define CFG_ENV_IS_NOWHERE 1
+
+/* Address and size of Primary Environment Sector */
+#define CFG_ENV_ADDR 0xB0030000
+#define CFG_ENV_SIZE 0x10000
+
+#define CONFIG_FLASH_16BIT
+
+#define CONFIG_NR_DRAM_BANKS 2
+
+#define CONFIG_NET_MULTI
+
+#define CONFIG_MEMSIZE_IN_BYTES
+
+/*---ATA PCMCIA ------------------------------------*/
+#define CFG_PCMCIA_MEM_SIZE 0x4000000 /* Offset to slot 1 FIXME!!! */
+
+#define CFG_PCMCIA_MEM_ADDR 0x20000000
+#define CFG_PCMCIA_IO_BASE 0x28000000
+#define CFG_PCMCIA_ATTR_BASE 0x30000000
+
+#define CONFIG_PCMCIA_SLOT_A
+
+#define CONFIG_ATAPI 1
+#define CONFIG_MAC_PARTITION 1
+
+/* We run CF in "true ide" mode or a harddrive via pcmcia */
+#define CONFIG_IDE_PCMCIA 1
+
+/* We only support one slot for now */
+#define CFG_IDE_MAXBUS 1 /* max. 1 IDE bus */
+#define CFG_IDE_MAXDEVICE 1 /* max. 1 drive per IDE bus */
+
+#undef CONFIG_IDE_LED /* LED for ide not supported */
+#undef CONFIG_IDE_RESET /* reset for ide not supported */
+
+#define CFG_ATA_IDE0_OFFSET 0
+
+#define CFG_ATA_BASE_ADDR CFG_PCMCIA_IO_BASE
+
+/* Offset for data I/O */
+#define CFG_ATA_DATA_OFFSET 0
+
+/* Offset for normal register accesses */
+#define CFG_ATA_REG_OFFSET 0
+
+/* Offset for alternate registers */
+#define CFG_ATA_ALT_OFFSET 0x0200
+
+/*-----------------------------------------------------------------------
+ * Cache Configuration
+ */
+#define CFG_DCACHE_SIZE 16384
+#define CFG_ICACHE_SIZE 16384
+#define CFG_CACHELINE_SIZE 32
+
+#define GPIO_CACONFIG (1<<0)
+#define GPIO_DPACONFIG (1<<6)
+#define GPIO_ERESET (1<<11)
+#define GPIO_EEDQ (1<<17)
+#define GPIO_WDI (1<<18)
+#define GPIO_RJ1LY (1<<22)
+#define GPIO_RJ1LG (1<<23)
+#define GPIO_LEDCLK (1<<29)
+#define GPIO_LEDD (1<<30)
+#define GPIO_CPU_LED (1<<31)
+
+#endif /* __CONFIG_H */