--- /dev/null
-#define DTT_I2C_DEV_CODE 0x49 /* Dallas Semi's DS1775 device code */
+ /*
+ * 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
+ */
+
+ /*
+ * Dallas Semiconductor's DS1775 Digital Thermometer and Thermostat
+ */
+
+ #include <common.h>
+
+ #ifdef CONFIG_DTT_DS1775
+ #include <i2c.h>
+ #include <dtt.h>
+
++#define DTT_I2C_DEV_CODE CFG_I2C_DTT_ADDR /* Dallas Semi's DS1775 device code */
+
+ int dtt_read(int sensor, int reg)
+ {
+ int dlen;
+ uchar data[2];
+
+ /*
+ * Calculate sensor address and command
+ */
+ sensor = DTT_I2C_DEV_CODE + (sensor & 0x07); /* Calculate addr of ds1775 */
+
+ /*
+ * Prepare to handle 2 byte result
+ */
+ if ((reg == DTT_READ_TEMP) ||
+ (reg == DTT_TEMP_OS) || (reg == DTT_TEMP_HYST))
+ dlen = 2;
+ else
+ dlen = 1;
+
+ /*
+ * Now try to read the register
+ */
+ if (i2c_read(sensor, reg, 1, data, dlen) != 0)
+ return 1;
+
+ /*
+ * Handle 2 byte result
+ */
+ if (dlen == 2)
+ return ((int)((short)data[1] + (((short)data[0]) << 8)));
+
+ return (int) data[0];
+ }
+
+
+ int dtt_write(int sensor, int reg, int val)
+ {
+ int dlen;
+ uchar data[2];
+
+ /*
+ * Calculate sensor address and register
+ */
+ sensor = DTT_I2C_DEV_CODE + (sensor & 0x07);
+
+ /*
+ * Handle various data sizes
+ */
+ if ((reg == DTT_READ_TEMP) ||
+ (reg == DTT_TEMP_OS) || (reg == DTT_TEMP_HYST)) {
+ dlen = 2;
+ data[0] = (char)((val >> 8) & 0xff); /* MSB first */
+ data[1] = (char)(val & 0xff);
+ } else {
+ dlen = 1;
+ data[0] = (char)(val & 0xff);
+ }
+
+ /*
+ * Write value to device
+ */
+ if (i2c_write(sensor, reg, 1, data, dlen) != 0)
+ return 1;
+
+ return 0;
+ }
+
+
+ static int _dtt_init(int sensor)
+ {
+ int val;
+
+ /*
+ * Setup High Temp
+ */
+ val = ((CFG_DTT_MAX_TEMP * 2) << 7) & 0xff80;
+ if (dtt_write(sensor, DTT_TEMP_OS, val) != 0)
+ return 1;
+ udelay(50000); /* Max 50ms */
+
+ /*
+ * Setup Low Temp - hysteresis
+ */
+ val = (((CFG_DTT_MAX_TEMP - CFG_DTT_HYSTERESIS) * 2) << 7) & 0xff80;
+ if (dtt_write(sensor, DTT_TEMP_HYST, val) != 0)
+ return 1;
+ udelay(50000); /* Max 50ms */
+
+ /*
+ * Setup configuraton register
+ *
+ * Fault Tolerance limits 4, Thermometer resolution bits is 9,
+ * Polarity = Active Low,continuous conversion mode, Thermostat
+ * mode is interrupt mode
+ */
+ val = 0xa;
+ if (dtt_write(sensor, DTT_CONFIG, val) != 0)
+ return 1;
+ udelay(50000); /* Max 50ms */
+
+ return 0;
+ }
+
+
+ int dtt_init (void)
+ {
+ int i;
+ unsigned char sensors[] = CONFIG_DTT_SENSORS;
+
+ for (i = 0; i < sizeof(sensors); i++) {
+ if (_dtt_init(sensors[i]) != 0)
+ printf("DTT%d: FAILED\n", i+1);
+ else
+ printf("DTT%d: %i C\n", i+1, dtt_get_temp(sensors[i]));
+ }
+
+ return (0);
+ }
+
+
+ int dtt_get_temp(int sensor)
+ {
+ return (dtt_read(sensor, DTT_READ_TEMP) / 256);
+ }
+
+
+ #endif /* CONFIG_DTT_DS1775 */
--- /dev/null
+ #
+ # (C) Copyright 2001-2006
+ # 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
+
+ #CFLAGS += -DDEBUG
+
+ LIB = $(obj)librtc.a
+
+ COBJS-y += date.o
+ COBJS-y += bf5xx_rtc.o
+ COBJS-y += ds12887.o
+ COBJS-y += ds1302.o
+ COBJS-y += ds1306.o
+ COBJS-y += ds1307.o
+ COBJS-y += ds1337.o
+ COBJS-y += ds1374.o
+ COBJS-y += ds1556.o
+ COBJS-y += ds164x.o
+ COBJS-y += ds174x.o
+ COBJS-y += ds3231.o
+ COBJS-y += m41t11.o
+ COBJS-y += max6900.o
+ COBJS-y += m48t35ax.o
+ COBJS-y += mc146818.o
+ COBJS-y += mk48t59.o
+ COBJS-y += mpc5xxx.o
+ COBJS-y += mpc8xx.o
+ COBJS-y += pcf8563.o
+ COBJS-y += s3c24x0_rtc.o
+ COBJS-y += rs5c372.o
+ COBJS-y += mcfrtc.o
++COBJS-y += x1205.o
+
+ COBJS := $(COBJS-y)
+ SRCS := $(COBJS:.o=.c)
+ OBJS := $(addprefix $(obj),$(COBJS))
+
+ all: $(LIB)
+
+ $(LIB): $(obj).depend $(OBJS)
+ $(AR) $(ARFLAGS) $@ $(OBJS)
+
+ #########################################################################
+
+ # defines $(obj).depend target
+ include $(SRCTREE)/rules.mk
+
+ sinclude $(obj).depend
+
+ #########################################################################