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83xx, kmeter1: add I2C, dtt, eeprom support

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This patch adds I2C support for the Keymile kmeter1 board.
It uses the First I2C Controller from the CPU, for
accessing 4 temperature sensors, an eeprom with IVM data
and the booteeprom over a pca9547 mux.

Signed-off-by: Heiko Schocher <hs@denx.de>
Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
This commit is contained in:
Heiko Schocher
2009-02-24 11:30:34 +01:00
committed by Kim Phillips
parent db1d72afd7
commit 19f0e93041
4 changed files with 69 additions and 8 deletions
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7
include/configs/keymile-common.h
View File

@@ -42,13 +42,9 @@
#define CONFIG_CMD_IMMAP
#define CONFIG_CMD_MII
#define CONFIG_CMD_PING
/* should go away, if kmeter I2C support is enabled */
#if defined(CONFIG_MGCOGE) || defined(CONFIG_MGSUVD)
#define CONFIG_CMD_DTT
#define CONFIG_CMD_EEPROM
#define CONFIG_CMD_I2C
#endif
#undef CONFIG_WATCHDOG /* disable platform specific watchdog */
@@ -73,10 +69,7 @@
#define CONFIG_SYS_BARGSIZE CONFIG_SYS_CBSIZE /* Boot Argument Buffer Size */
#define CONFIG_CMDLINE_EDITING 1 /* add command line history */
/* should go away, if kmeter I2C support is enabled */
#if defined(CONFIG_MGCOGE) || defined(CONFIG_MGSUVD)
#define CONFIG_HUSH_INIT_VAR 1
#endif
#define CONFIG_SYS_ALT_MEMTEST /* memory test, takes time */
#define CONFIG_SYS_MEMTEST_START 0x00100000 /* memtest works on */

35
include/configs/kmeter1.h
View File

@@ -32,6 +32,7 @@
/* include common defines/options for all Keymile boards */
#include "keymile-common.h"
#define CONFIG_MISC_INIT_R 1
/*
* System Clock Setup
*/
@@ -300,6 +301,38 @@
#define CONFIG_ENV_SIZE 0x2000
#endif /* CFG_RAMBOOT */
/* I2C */
#define CONFIG_HARD_I2C /* I2C with hardware support */
#undef CONFIG_SOFT_I2C /* I2C bit-banged */
#define CONFIG_FSL_I2C
#define CONFIG_SYS_I2C_SPEED 200000 /* I2C speed and slave address */
#define CONFIG_SYS_I2C_SLAVE 0x7F
#define CONFIG_SYS_I2C_OFFSET 0x3000
#define CONFIG_I2C_MULTI_BUS 1
#define CONFIG_I2C_CMD_TREE 1
#define CONFIG_SYS_MAX_I2C_BUS 2
#define CONFIG_I2C_MUX 1
/* EEprom support */
#define CONFIG_SYS_I2C_EEPROM_ADDR_LEN 2
#define CONFIG_SYS_I2C_MULTI_EEPROMS 1
#define CONFIG_SYS_EEPROM_PAGE_WRITE_ENABLE
#define CONFIG_SYS_EEPROM_PAGE_WRITE_BITS 3
#define CONFIG_SYS_EEPROM_PAGE_WRITE_DELAY_MS 10
/* Support the IVM EEprom */
#define CONFIG_SYS_IVM_EEPROM_ADR 0x50
#define CONFIG_SYS_IVM_EEPROM_MAX_LEN 0x400
#define CONFIG_SYS_IVM_EEPROM_PAGE_LEN 0x100
/* I2C SYSMON (LM75, AD7414 is almost compatible) */
#define CONFIG_DTT_LM75 1 /* ON Semi's LM75 */
#define CONFIG_DTT_SENSORS {0, 1, 2, 3} /* Sensor addresses */
#define CONFIG_SYS_DTT_MAX_TEMP 70
#define CONFIG_SYS_DTT_LOW_TEMP -30
#define CONFIG_SYS_DTT_HYSTERESIS 3
#define CONFIG_SYS_DTT_BUS_NUM (2)
#if defined(CONFIG_PCI)
#define CONFIG_CMD_PCI
#endif
@@ -452,6 +485,8 @@
"loadfdt=tftp ${fdt_addr_r} ${fdt_file}\0" \
"loadkernel=tftp ${kernel_addr_r} ${boot_file}\0" \
"unlock=yes\0" \
"EEprom_ivm=pca9547:70:9\0" \
"dtt_bus=pca9547:70:a\0" \
""
#endif /* __CONFIG_H */