Merge commit 'wd/master'

6 files changed, 114 insertions, 50 deletions

diff --git a/drivers/rtc/date.c b/drivers/rtc/date.c
index a83a723..d30ad92 100644
--- a/drivers/rtc/date.c
+++ b/drivers/rtc/date.c
@@ -36,8 +36,8 @@
 #define SECDAY			86400L
 #define SECYR			(SECDAY * 365)
 #define	leapyear(year)		((year) % 4 == 0)
-#define	days_in_year(a) 	(leapyear(a) ? 366 : 365)
-#define	days_in_month(a) 	(month_days[(a) - 1])
+#define	days_in_year(a)		(leapyear(a) ? 366 : 365)
+#define	days_in_month(a)	(month_days[(a) - 1])
 
 static int month_days[12] = {
 	31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31
diff --git a/drivers/rtc/ds12887.c b/drivers/rtc/ds12887.c
index 57a446d..990ebba 100644
--- a/drivers/rtc/ds12887.c
+++ b/drivers/rtc/ds12887.c
@@ -35,14 +35,14 @@
 #define RTC_MINUTES			0x02
 #define RTC_MINUTES_ALARM		0x03
 #define RTC_HOURS			0x04
-#define RTC_HOURS_ALARM 		0x05
-#define RTC_DAY_OF_WEEK 		0x06
+#define RTC_HOURS_ALARM			0x05
+#define RTC_DAY_OF_WEEK			0x06
 #define RTC_DATE_OF_MONTH		0x07
 #define RTC_MONTH			0x08
 #define RTC_YEAR			0x09
-#define RTC_CONTROL_A 			0x0A
-#define RTC_CONTROL_B 			0x0B
-#define RTC_CONTROL_C 			0x0C
+#define RTC_CONTROL_A			0x0A
+#define RTC_CONTROL_B			0x0B
+#define RTC_CONTROL_C			0x0C
 #define RTC_CONTROL_D			0x0D
 
 #define RTC_CA_UIP			0x80
diff --git a/drivers/rtc/ds1302.c b/drivers/rtc/ds1302.c
index 3a856c8..e4e9154 100644
--- a/drivers/rtc/ds1302.c
+++ b/drivers/rtc/ds1302.c
@@ -66,7 +66,7 @@ struct ds1302_st
 	unsigned char month:4;
 
 	unsigned char zero4:5;
-	unsigned char day:3; 		/* day of week */
+	unsigned char day:3;		/* day of week */
 
 	unsigned char year10:4;
 	unsigned char year:4;
@@ -191,7 +191,7 @@ write_ser_drv(unsigned char addr, unsigned char *buf, int count)
 void
 rtc_init(void)
 {
-    	struct ds1302_st bbclk;
+	struct ds1302_st bbclk;
 	unsigned char b;
 	int mod;
 
diff --git a/drivers/rtc/ds1306.c b/drivers/rtc/ds1306.c
index 1c8ac7f..29854fc 100644
--- a/drivers/rtc/ds1306.c
+++ b/drivers/rtc/ds1306.c
@@ -62,13 +62,6 @@
 
 #define	RTC_USER_RAM_BASE	0x20
 
-/*
- * External table of chip select functions (see the appropriate board
- * support for the actual definition of the table).
- */
-extern spi_chipsel_type spi_chipsel[];
-extern int spi_chipsel_cnt;
-
 static unsigned int bin2bcd (unsigned int n);
 static unsigned char bcd2bin (unsigned char c);
 
@@ -305,11 +298,29 @@ void rtc_reset (void)
 static unsigned char rtc_read (unsigned char reg);
 static void rtc_write (unsigned char reg, unsigned char val);
 
+static struct spi_slave *slave;
+
 /* read clock time from DS1306 and return it in *tmp */
 int rtc_get (struct rtc_time *tmp)
 {
 	unsigned char sec, min, hour, mday, wday, mon, year;
 
+	/*
+	 * Assuming Vcc = 2.0V (lowest speed)
+	 *
+	 * REVISIT: If we add an rtc_init() function we can do this
+	 * step just once.
+	 */
+	if (!slave) {
+		slave = spi_setup_slave(0, CFG_SPI_RTC_DEVID, 600000,
+				SPI_MODE_3 | SPI_CS_HIGH);
+		if (!slave)
+			return;
+	}
+
+	if (spi_claim_bus(slave))
+		return;
+
 	sec = rtc_read (RTC_SECONDS);
 	min = rtc_read (RTC_MINUTES);
 	hour = rtc_read (RTC_HOURS);
@@ -318,6 +329,8 @@ int rtc_get (struct rtc_time *tmp)
 	mon = rtc_read (RTC_MONTH);
 	year = rtc_read (RTC_YEAR);
 
+	spi_release_bus(slave);
+
 	debug ("Get RTC year: %02x mon: %02x mday: %02x wday: %02x "
 	       "hr: %02x min: %02x sec: %02x\n",
 	       year, mon, mday, wday, hour, min, sec);
@@ -360,6 +373,17 @@ int rtc_get (struct rtc_time *tmp)
 /* set clock time from *tmp in DS1306 RTC */
 void rtc_set (struct rtc_time *tmp)
 {
+	/* Assuming Vcc = 2.0V (lowest speed) */
+	if (!slave) {
+		slave = spi_setup_slave(0, CFG_SPI_RTC_DEVID, 600000,
+				SPI_MODE_3 | SPI_CS_HIGH);
+		if (!slave)
+			return;
+	}
+
+	if (spi_claim_bus(slave))
+		return;
+
 	debug ("Set DATE: %4d-%02d-%02d (wday=%d)  TIME: %2d:%02d:%02d\n",
 	       tmp->tm_year, tmp->tm_mon, tmp->tm_mday, tmp->tm_wday,
 	       tmp->tm_hour, tmp->tm_min, tmp->tm_sec);
@@ -371,6 +395,8 @@ void rtc_set (struct rtc_time *tmp)
 	rtc_write (RTC_DATE_OF_MONTH, bin2bcd (tmp->tm_mday));
 	rtc_write (RTC_MONTH, bin2bcd (tmp->tm_mon));
 	rtc_write (RTC_YEAR, bin2bcd (tmp->tm_year - 2000));
+
+	spi_release_bus(slave);
 }
 
 /* ------------------------------------------------------------------------- */
@@ -378,6 +404,17 @@ void rtc_set (struct rtc_time *tmp)
 /* reset the DS1306 */
 void rtc_reset (void)
 {
+	/* Assuming Vcc = 2.0V (lowest speed) */
+	if (!slave) {
+		slave = spi_setup_slave(0, CFG_SPI_RTC_DEVID, 600000,
+				SPI_MODE_3 | SPI_CS_HIGH);
+		if (!slave)
+			return;
+	}
+
+	if (spi_claim_bus(slave))
+		return;
+
 	/* clear the control register */
 	rtc_write (RTC_CONTROL, 0x00);	/* 1st step: reset WP */
 	rtc_write (RTC_CONTROL, 0x00);	/* 2nd step: reset 1Hz, AIE1, AIE0 */
@@ -391,22 +428,18 @@ void rtc_reset (void)
 	rtc_write (RTC_HOURS_ALARM1, 0x00);
 	rtc_write (RTC_DAY_OF_WEEK_ALARM0, 0x00);
 	rtc_write (RTC_DAY_OF_WEEK_ALARM1, 0x00);
+
+	spi_release_bus(slave);
 }
 
 /* ------------------------------------------------------------------------- */
 
 static unsigned char rtc_read (unsigned char reg)
 {
-	unsigned char dout[2];	/* SPI Output Data Bytes */
-	unsigned char din[2];	/* SPI Input Data Bytes */
-
-	dout[0] = reg;
+	int ret;
 
-	if (spi_xfer (spi_chipsel[CFG_SPI_RTC_DEVID], 16, dout, din) != 0) {
-		return 0;
-	} else {
-		return din[1];
-	}
+	ret = spi_w8r8(slave, reg);
+	return ret < 0 ? 0 : ret;
 }
 
 /* ------------------------------------------------------------------------- */
@@ -419,7 +452,7 @@ static void rtc_write (unsigned char reg, unsigned char val)
 	dout[0] = 0x80 | reg;
 	dout[1] = val;
 
-	spi_xfer (spi_chipsel[CFG_SPI_RTC_DEVID], 16, dout, din);
+	spi_xfer (slave, 16, dout, din, SPI_XFER_BEGIN | SPI_XFER_END);
 }
 
 #endif /* end of code exclusion (see #ifdef CONFIG_SXNI855T above) */
diff --git a/drivers/rtc/mc13783-rtc.c b/drivers/rtc/mc13783-rtc.c
index 35b1b8b..b6e1501 100644
--- a/drivers/rtc/mc13783-rtc.c
+++ b/drivers/rtc/mc13783-rtc.c
@@ -24,34 +24,50 @@
 #include <rtc.h>
 #include <spi.h>
 
+static struct spi_slave *slave;
+
 int rtc_get(struct rtc_time *rtc)
 {
 	u32 day1, day2, time;
 	u32 reg;
 	int err, tim, i = 0;
 
-	spi_select(1, 0, SPI_MODE_2 | SPI_CS_HIGH);
+	if (!slave) {
+		/* FIXME: Verify the max SCK rate */
+		slave = spi_setup_slave(1, 0, 1000000,
+				SPI_MODE_2 | SPI_CS_HIGH);
+		if (!slave)
+			return -1;
+	}
+
+	if (spi_claim_bus(slave))
+		return -1;
 
 	do {
 		reg = 0x2c000000;
-		err = spi_xfer(0, 32, (uchar *)&reg, (uchar *)&day1);
+		err = spi_xfer(slave, 32, (uchar *)&reg, (uchar *)&day1,
+				SPI_XFER_BEGIN | SPI_XFER_END);
 
 		if (err)
 			return err;
 
 		reg = 0x28000000;
-		err = spi_xfer(0, 32, (uchar *)&reg, (uchar *)&time);
+		err = spi_xfer(slave, 32, (uchar *)&reg, (uchar *)&time,
+				SPI_XFER_BEGIN | SPI_XFER_END);
 
 		if (err)
 			return err;
 
 		reg = 0x2c000000;
-		err = spi_xfer(0, 32, (uchar *)&reg, (uchar *)&day2);
+		err = spi_xfer(slave, 32, (uchar *)&reg, (uchar *)&day2,
+				SPI_XFER_BEGIN | SPI_XFER_END);
 
 		if (err)
 			return err;
 	} while (day1 != day2 && i++ < 3);
 
+	spi_release_bus(slave);
+
 	tim = day1 * 86400 + time;
 	to_tm(tim, rtc);
 
@@ -65,16 +81,31 @@ void rtc_set(struct rtc_time *rtc)
 {
 	u32 time, day, reg;
 
+	if (!slave) {
+		/* FIXME: Verify the max SCK rate */
+		slave = spi_setup_slave(1, 0, 1000000,
+				SPI_MODE_2 | SPI_CS_HIGH);
+		if (!slave)
+			return;
+	}
+
 	time = mktime(rtc->tm_year, rtc->tm_mon, rtc->tm_mday,
 		      rtc->tm_hour, rtc->tm_min, rtc->tm_sec);
 	day = time / 86400;
 	time %= 86400;
 
+	if (spi_claim_bus(slave))
+		return;
+
 	reg = 0x2c000000 | day | 0x80000000;
-	spi_xfer(0, 32, (uchar *)&reg, (uchar *)&day);
+	spi_xfer(slave, 32, (uchar *)&reg, (uchar *)&day,
+			SPI_XFER_BEGIN | SPI_XFER_END);
 
 	reg = 0x28000000 | time | 0x80000000;
-	spi_xfer(0, 32, (uchar *)&reg, (uchar *)&time);
+	spi_xfer(slave, 32, (uchar *)&reg, (uchar *)&time,
+			SPI_XFER_BEGIN | SPI_XFER_END);
+
+	spi_release_bus(slave);
 }
 
 void rtc_reset(void)
diff --git a/drivers/rtc/mc146818.c b/drivers/rtc/mc146818.c
index 70f7017..7c4fe36 100644
--- a/drivers/rtc/mc146818.c
+++ b/drivers/rtc/mc146818.c
@@ -38,21 +38,21 @@ static void  rtc_write (uchar reg, uchar val);
 static uchar bin2bcd   (unsigned int n);
 static unsigned bcd2bin(uchar c);
 
-#define RTC_PORT_MC146818		CFG_ISA_IO_BASE_ADDRESS +  0x70
-#define RTC_SECONDS       	0x00
-#define RTC_SECONDS_ALARM 	0x01
-#define RTC_MINUTES 				0x02
-#define RTC_MINUTES_ALARM 	0x03
-#define RTC_HOURS 					0x04
-#define RTC_HOURS_ALARM 		0x05
-#define RTC_DAY_OF_WEEK 		0x06
-#define RTC_DATE_OF_MONTH 	0x07
-#define RTC_MONTH 					0x08
-#define RTC_YEAR 						0x09
-#define RTC_CONFIG_A 				0x0A
-#define RTC_CONFIG_B 				0x0B
-#define RTC_CONFIG_C 				0x0C
-#define RTC_CONFIG_D 				0x0D
+#define RTC_PORT_MC146818	CFG_ISA_IO_BASE_ADDRESS +  0x70
+#define RTC_SECONDS		0x00
+#define RTC_SECONDS_ALARM	0x01
+#define RTC_MINUTES		0x02
+#define RTC_MINUTES_ALARM	0x03
+#define RTC_HOURS		0x04
+#define RTC_HOURS_ALARM		0x05
+#define RTC_DAY_OF_WEEK		0x06
+#define RTC_DATE_OF_MONTH	0x07
+#define RTC_MONTH		0x08
+#define RTC_YEAR		0x09
+#define RTC_CONFIG_A		0x0A
+#define RTC_CONFIG_B		0x0B
+#define RTC_CONFIG_C		0x0C
+#define RTC_CONFIG_D		0x0D
 
 
 /* ------------------------------------------------------------------------- */
@@ -62,12 +62,12 @@ int rtc_get (struct rtc_time *tmp)
 	uchar sec, min, hour, mday, wday, mon, year;
   /* here check if rtc can be accessed */
 	while((rtc_read(RTC_CONFIG_A)&0x80)==0x80);
-	sec		= rtc_read (RTC_SECONDS);
-	min		= rtc_read (RTC_MINUTES);
+	sec	= rtc_read (RTC_SECONDS);
+	min	= rtc_read (RTC_MINUTES);
 	hour	= rtc_read (RTC_HOURS);
 	mday	= rtc_read (RTC_DATE_OF_MONTH);
 	wday	= rtc_read (RTC_DAY_OF_WEEK);
-	mon		= rtc_read (RTC_MONTH);
+	mon	= rtc_read (RTC_MONTH);
 	year	= rtc_read (RTC_YEAR);
 #ifdef CONFIG_AMIGAONEG3SE
 	wday -= 1; /* VIA 686 stores Sunday = 1, Monday = 2, ... */