aboutsummaryrefslogtreecommitdiff
diff options
context:
space:
mode:
authorwdenk <wdenk>2004-06-09 17:34:58 +0000
committerwdenk <wdenk>2004-06-09 17:34:58 +0000
commit4c0d4c3b782ef278f5843eb2533e03b9c4c16e21 (patch)
tree09dcb91dbd32932f125901c1a4c210e4f2fdc88f
parentca0e774894ceceeffe5134f69c0f4e1f789407a2 (diff)
downloadu-boot-linaro-stable-4c0d4c3b782ef278f5843eb2533e03b9c4c16e21.tar.gz
* Patch by Tom Armistead, 04 Jun 2004:
Add support for MAX6900 RTC * Patches by Ladislav Michl, 03 Jun 2004: - fix cfi_flash.c on LE systems - let 'make mrproper' delete u-boot.img as well - turn printf into debug in cfi_flash.c
-rw-r--r--CHANGELOG8
-rw-r--r--Makefile8
-rw-r--r--README1
-rw-r--r--drivers/cfi_flash.c3
-rw-r--r--rtc/Makefile2
-rw-r--r--rtc/max6900.c131
6 files changed, 147 insertions, 6 deletions
diff --git a/CHANGELOG b/CHANGELOG
index bf6a9ffdf..b792af509 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -2,6 +2,14 @@
Changes since U-Boot 1.1.1:
======================================================================
+* Patch by Tom Armistead, 04 Jun 2004:
+ Add support for MAX6900 RTC
+
+* Patches by Ladislav Michl, 03 Jun 2004:
+ - fix cfi_flash.c on LE systems
+ - let 'make mrproper' delete u-boot.img as well
+ - turn printf into debug in cfi_flash.c
+
* Patch by Kurt Stremerch, 28 May 2004:
Add support for Exys XSEngine board
diff --git a/Makefile b/Makefile
index cf8ecb780..5c91ce04c 100644
--- a/Makefile
+++ b/Makefile
@@ -1338,10 +1338,10 @@ clean:
rm -f board/trab/trab_fkt
clobber: clean
- find . -type f \
- \( -name .depend -o -name '*.srec' -o -name '*.bin' \) \
- -print \
- | xargs rm -f
+ find . -type f \( -name .depend \
+ -o -name '*.srec' -o -name '*.bin' -o -name u-boot.img \) \
+ -print0 \
+ | xargs -0 rm -f
rm -f $(OBJS) *.bak tags TAGS
rm -fr *.*~
rm -f u-boot u-boot.map $(ALL)
diff --git a/README b/README
index b197b1d57..32a97cca3 100644
--- a/README
+++ b/README
@@ -652,6 +652,7 @@ The following options need to be configured:
CONFIG_RTC_DS1337 - use Maxim, Inc. DS1337 RTC
CONFIG_RTC_DS1338 - use Maxim, Inc. DS1338 RTC
CONFIG_RTC_DS164x - use Dallas DS164x RTC
+ CONFIG_RTC_MAX6900 - use Maxim, Inc. MAX6900 RTC
Note that if the RTC uses I2C, then the I2C interface
must also be configured. See I2C Support, below.
diff --git a/drivers/cfi_flash.c b/drivers/cfi_flash.c
index cba91f31a..b79cf5934 100644
--- a/drivers/cfi_flash.c
+++ b/drivers/cfi_flash.c
@@ -46,6 +46,7 @@
#include <common.h>
#include <asm/processor.h>
+#include <asm/byteorder.h>
#include <linux/byteorder/swab.h>
#ifdef CFG_FLASH_CFI_DRIVER
@@ -1038,7 +1039,7 @@ static ulong flash_get_size (ulong base, int banknum)
(tmp & 0xffff) ? ((tmp & 0xffff) * 256) : 128;
tmp >>= 16;
erase_region_count = (tmp & 0xffff) + 1;
- printf ("erase_region_count = %d erase_region_size = %d\n",
+ debug ("erase_region_count = %d erase_region_size = %d\n",
erase_region_count, erase_region_size);
for (j = 0; j < erase_region_count; j++) {
info->start[sect_cnt] = sector;
diff --git a/rtc/Makefile b/rtc/Makefile
index 1c543d74f..71fadeafd 100644
--- a/rtc/Makefile
+++ b/rtc/Makefile
@@ -30,7 +30,7 @@ LIB = librtc.a
OBJS = date.o \
ds12887.o ds1302.o ds1306.o ds1307.o ds1337.o \
ds1556.o ds164x.o ds174x.o \
- m41t11.o m48t35ax.o mc146818.o mk48t59.o \
+ m41t11.o max6900.o m48t35ax.o mc146818.o mk48t59.o \
mpc5xxx.o mpc8xx.o pcf8563.o s3c24x0_rtc.o
all: $(LIB)
diff --git a/rtc/max6900.c b/rtc/max6900.c
new file mode 100644
index 000000000..73919cd98
--- /dev/null
+++ b/rtc/max6900.c
@@ -0,0 +1,131 @@
+/*
+ * (C) Copyright 2004
+ * 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
+ */
+
+/*
+ * Date & Time support for MAXIM MAX6900 RTC
+ */
+
+/* #define DEBUG */
+
+#include <common.h>
+#include <command.h>
+#include <rtc.h>
+#include <i2c.h>
+
+#if defined(CONFIG_RTC_MAX6900) && (CONFIG_COMMANDS & CFG_CMD_DATE)
+
+#ifndef CFG_I2C_RTC_ADDR
+#define CFG_I2C_RTC_ADDR 0x50
+#endif
+
+/* ------------------------------------------------------------------------- */
+
+static uchar rtc_read (uchar reg)
+{
+ return (i2c_reg_read (CFG_I2C_RTC_ADDR, reg));
+}
+
+static void rtc_write (uchar reg, uchar val)
+{
+ i2c_reg_write (CFG_I2C_RTC_ADDR, reg, val);
+ udelay(2500);
+}
+
+static unsigned bcd2bin (uchar n)
+{
+ return ((((n >> 4) & 0x0F) * 10) + (n & 0x0F));
+}
+
+static unsigned char bin2bcd (unsigned int n)
+{
+ return (((n / 10) << 4) | (n % 10));
+}
+
+/* ------------------------------------------------------------------------- */
+
+void rtc_get (struct rtc_time *tmp)
+{
+ uchar sec, min, hour, mday, wday, mon, cent, year;
+ int retry = 1;
+
+ do {
+ sec = rtc_read (0x80);
+ min = rtc_read (0x82);
+ hour = rtc_read (0x84);
+ mday = rtc_read (0x86);
+ mon = rtc_read (0x88);
+ wday = rtc_read (0x8a);
+ year = rtc_read (0x8c);
+ cent = rtc_read (0x92);
+ /*
+ * Check for seconds rollover
+ */
+ if ((sec != 59) || (rtc_read(0x80) == sec)){
+ retry = 0;
+ }
+ } while (retry);
+
+ debug ( "Get RTC year: %02x mon: %02x cent: %02x mday: %02x wday: %02x "
+ "hr: %02x min: %02x sec: %02x\n",
+ year, mon, cent, mday, wday,
+ hour, min, sec );
+
+ tmp->tm_sec = bcd2bin (sec & 0x7F);
+ tmp->tm_min = bcd2bin (min & 0x7F);
+ tmp->tm_hour = bcd2bin (hour & 0x3F);
+ tmp->tm_mday = bcd2bin (mday & 0x3F);
+ tmp->tm_mon = bcd2bin (mon & 0x1F);
+ tmp->tm_year = bcd2bin (year) + bcd2bin(cent) * 100;
+ tmp->tm_wday = bcd2bin (wday & 0x07);
+ tmp->tm_yday = 0;
+ tmp->tm_isdst= 0;
+
+ debug ( "Get 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);
+}
+
+void rtc_set (struct rtc_time *tmp)
+{
+
+ 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);
+
+ rtc_write (0x9E, 0x00);
+ rtc_write (0x80, 0); /* Clear seconds to ensure no rollover */
+ rtc_write (0x92, bin2bcd(tmp->tm_year / 100));
+ rtc_write (0x8c, bin2bcd(tmp->tm_year % 100));
+ rtc_write (0x8a, bin2bcd(tmp->tm_wday));
+ rtc_write (0x88, bin2bcd(tmp->tm_mon));
+ rtc_write (0x86, bin2bcd(tmp->tm_mday));
+ rtc_write (0x84, bin2bcd(tmp->tm_hour));
+ rtc_write (0x82, bin2bcd(tmp->tm_min ));
+ rtc_write (0x80, bin2bcd(tmp->tm_sec ));
+}
+
+void rtc_reset (void)
+{
+}
+
+#endif /* CONFIG_RTC_MAX6900 && CFG_CMD_DATE */