diff options
author | Wolfgang Denk <wd@fifi.denx.de> | 2006-06-16 17:32:31 +0200 |
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committer | Wolfgang Denk <wd@fifi.denx.de> | 2006-06-16 17:32:31 +0200 |
commit | 0c32d96ddd7309b86ff92dfc1f3694908f174cf6 (patch) | |
tree | 1136126a58dfc4f89043f65532673128dc3c9b4f /board/gth2/ee_dev.h | |
parent | c12cffc543df621c162ba26e012c7f4ab0af496e (diff) |
Add support for gth2 board
Patch by Thomas Lange, Aug 11 2005
Diffstat (limited to 'board/gth2/ee_dev.h')
-rw-r--r-- | board/gth2/ee_dev.h | 96 |
1 files changed, 96 insertions, 0 deletions
diff --git a/board/gth2/ee_dev.h b/board/gth2/ee_dev.h new file mode 100644 index 00000000000..acc3418f221 --- /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 */ |