Signed-off-by: Ricardo Ribalda Delgado ricardo.ribalda@uam.es --- drivers/hwmon/Makefile | 1 + drivers/hwmon/adt7460.c | 83 +++++++++++++++++++++++++++++++++++++++++++++++ include/dtt.h | 3 +- 3 files changed, 86 insertions(+), 1 deletions(-) create mode 100644 drivers/hwmon/adt7460.c

diff --git a/drivers/hwmon/Makefile b/drivers/hwmon/Makefile index f09f145..7342b91 100644 --- a/drivers/hwmon/Makefile +++ b/drivers/hwmon/Makefile @@ -37,6 +37,7 @@ COBJS-$(CONFIG_DTT_DS1775) += ds1775.o COBJS-$(CONFIG_DTT_LM73) += lm73.o COBJS-$(CONFIG_DTT_LM75) += lm75.o COBJS-$(CONFIG_DTT_LM81) += lm81.o +COBJS-$(CONFIG_DTT_ADT7460) += adt7460.o

COBJS := $(COBJS-y) SRCS := $(COBJS:.o=.c) diff --git a/drivers/hwmon/adt7460.c b/drivers/hwmon/adt7460.c new file mode 100644 index 0000000..caef70a --- /dev/null +++ b/drivers/hwmon/adt7460.c @@ -0,0 +1,83 @@ +/* + * (C) Copyright 2008 + * Ricado Ribalda-Universidad Autonoma de Madrid, ricardo.ribalda@uam.es + * This work has been supported by: QTechnology http://qtec.com/ + * 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, see http://www.gnu.org/licenses/. +*/ + +#include <common.h> +#include <i2c.h> +#include <dtt.h> + +#define ADT7460_ADDRESS 0x2c +#define ADT7460_INVALID 128 +#define ADT7460_CONFIG 0x40 +#define ADT7460_REM1_TEMP 0x25 +#define ADT7460_LOCAL_TEMP 0x26 +#define ADT7460_REM2_TEMP 0x27 + +int dtt_read(int sensor, int reg) +{ + u8 dir = reg; + u8 data; + + if (i2c_read(ADT7460_ADDRESS, dir, 1, &data, 1) == -1) + return -1; + if (data == ADT7460_INVALID) + return -1; + + return data; +} + +int dtt_write(int sensor, int reg, int val) +{ + u8 dir = reg; + u8 data = val; + + if (i2c_write(ADT7460_ADDRESS, dir, 1, &data, 1) == -1) + return -1; + + return 0; +} + +int dtt_init(void) +{ + printf("ADT7460 at I2C address 0x%2x\n", ADT7460_ADDRESS); + + if (dtt_write(0, ADT7460_CONFIG, 1) == -1) { + puts("Error initialiting ADT7460\n"); + return -1; + } + + return 0; +} + +int dtt_get_temp(int sensor) +{ + int aux; + u8 table[] = + { ADT7460_REM1_TEMP, ADT7460_LOCAL_TEMP, ADT7460_REM2_TEMP }; + + if (sensor > 2) { + puts("DTT sensor does not exist\n"); + return -1; + } + + aux = dtt_read(0, table[sensor]); + if (aux == -1) { + puts("DTT temperature read failed\n"); + return -1; + } + + return aux; +} diff --git a/include/dtt.h b/include/dtt.h index 34053d1..ce0fdfa 100644 --- a/include/dtt.h +++ b/include/dtt.h @@ -32,7 +32,8 @@ defined(CONFIG_DTT_DS1775) || \ defined(CONFIG_DTT_LM81) || \ defined(CONFIG_DTT_ADM1021) || \ - defined(CONFIG_DTT_LM73) + defined(CONFIG_DTT_LM73) || \ + defined(CONFIG_DTT_ADT7460)

#define CONFIG_DTT /* We have a DTT */

still coding style issues.

M

This driver provides access to a simulated i2c eeprom. This simulated eeprom could be very useful in boards with ddr2 memories and no i2c interfaces.

Using this driver the user can simulate a spd eeprom of a ddr2 memory and use the ddr2 auto config.

User can use the macros CONFIG_EEPROM_SIMUL_LEN and CONFIG_EEPROM_SIMUL_DATA to define the content of the simulated eeprom

Signed-off-by: Ricardo Ribalda Delgado ricardo.ribalda@uam.es

drivers/i2c/Makefile | 1 + drivers/i2c/eeprom_simul.c | 68 ++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 69 insertions(+), 0 deletions(-) create mode 100644 drivers/i2c/eeprom_simul.c

diff --git a/drivers/i2c/Makefile b/drivers/i2c/Makefile index 534c015..2aeabe5 100644 --- a/drivers/i2c/Makefile +++ b/drivers/i2c/Makefile @@ -30,6 +30,7 @@ COBJS-y += omap1510_i2c.o COBJS-y += omap24xx_i2c.o COBJS-y += tsi108_i2c.o COBJS-y += mxc_i2c.o +COBJS-$(CONFIG_EEPROM_SIMUL) += eeprom_simul.o

COBJS := $(COBJS-y) SRCS := $(COBJS:.o=.c) diff --git a/drivers/i2c/eeprom_simul.c b/drivers/i2c/eeprom_simul.c new file mode 100644 index 0000000..d8dbb3b --- /dev/null +++ b/drivers/i2c/eeprom_simul.c @@ -0,0 +1,68 @@ +/*

• (C) Copyright 2008
• Ricado Ribalda-Universidad Autonoma de Madrid-ricardo.ribalda@uam.es
• This work has been supported by: QTechnology http://qtec.com/
• 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, see http://www.gnu.org/licenses/.

+*/

+#include <common.h> +#include <i2c.h>

+#ifndef CONFIG_EEPROM_SIMUL_LEN +#define CONFIG_EEPROM_SIMUL_LEN 256 +#endif

+u8 eeprom_simul_buffer[CONFIG_EEPROM_SIMUL_LEN] +#ifdef CONFIG_EEPROM_SIMUL_DATA

•   = CONFIG_EEPROM_SIMUL_DATA
  

+#endif +;

+void i2c_init(int speed, int slaveaddr){

•   return ;
  

+}

+int i2c_read(uchar chip, uint addr, int alen, uchar * buffer, int len) +{

•   int i;
  

•   if (addr+len>CONFIG_EEPROM_SIMUL_LEN)
  

•           return -1;
  

•   for(i=0;i<len;i++){
  

•           buffer[i]=eeprom_simul_buffer[i+addr];
  

•   }
  

•   return 0;
  

+} +int i2c_write(uchar chip, uint addr, int alen, uchar * buffer, int len) +{

•   int i;
  

•   if (addr+len>CONFIG_EEPROM_SIMUL_LEN)
  

•           return -1;
  

•   for(i=0;i<len;i++){
  

•           eeprom_simul_buffer[i+addr]=buffer[i];
  

•   }
  

•   return 0;
  

+}

+int i2c_probe(uchar chip) +{

•   return 0;
  

+}