[U-Boot] [PATCH v3 0/5] Update for inka4x0 plus some new features

[U-Boot] [PATCH v3 0/5] Update for inka4x0 plus some new features

[Detlev Zundel]

This patchset contains updates for the ink4x0 platform.  Namely it
adds hardware diagnostic funtions and an RTC driver.

For a nice integration by using private command tables, do_help is
extended to support this scenario also.

To successfully convert all the pointer access to accessor macros, a
bunch of new defines is also needed for the 5200 cpu.


Changes from v2:

Addresses comments from ML.  Specifically:
- Fixing the odd empty line here and there
- Removed some cruft uncovered in the review process
- Rebased against master becaus some patches were
  already applied by Wolfgang.

Detlev Zundel (5):
  drivers/twserial: Add protocol driver for "three wire serial"
    interface.
  rtc: add support for 4543 RTC (manufactured by e.g. EPSON)
  inka4x0: Add hardware diagnosis functions for inka4x0
  inka4x0: Add hardware diagnosis and RTC in configuration.
  inka4x0: Use proper accessor macros for memory mapped registers.

 Makefile                    |    3 +-
 board/inka4x0/Makefile      |    4 +-
 board/inka4x0/inka4x0.c     |  171 +++++++++-----
 board/inka4x0/inkadiag.c    |  514 +++++++++++++++++++++++++++++++++++++++++++
 drivers/rtc/Makefile        |    1 +
 drivers/rtc/rtc4543.c       |  118 ++++++++++
 drivers/twserial/Makefile   |   46 ++++
 drivers/twserial/soft_tws.c |  111 ++++++++++
 include/configs/inka4x0.h   |   91 +++++++-
 include/ns16550.h           |   11 +
 include/rtc.h               |    4 +
 include/tws.h               |   38 ++++
 12 files changed, 1042 insertions(+), 70 deletions(-)
 create mode 100644 board/inka4x0/inkadiag.c
 create mode 100644 drivers/rtc/rtc4543.c
 create mode 100644 drivers/twserial/Makefile
 create mode 100644 drivers/twserial/soft_tws.c
 create mode 100644 include/tws.h

[U-Boot] [PATCH v3 1/5] drivers/twserial: Add protocol driver for "three wire serial" interface.

[Detlev Zundel]

This pretty unintelligent interface is used on some RTC chips.

Signed-off-by: Detlev Zundel <dzu@denx.de>
---
 Makefile                    |    3 +-
 drivers/twserial/Makefile   |   46 ++++++++++++++++++
 drivers/twserial/soft_tws.c |  111 +++++++++++++++++++++++++++++++++++++++++++
 include/tws.h               |   38 +++++++++++++++
 4 files changed, 197 insertions(+), 1 deletions(-)
 create mode 100644 drivers/twserial/Makefile
 create mode 100644 drivers/twserial/soft_tws.c
 create mode 100644 include/tws.h

diff --git a/Makefile b/Makefile
index 1cce381..b6fb939 100644
--- a/Makefile
+++ b/Makefile
@@ -1,5 +1,5 @@
 #
-# (C) Copyright 2000-2008
+# (C) Copyright 2000-2009
 # Wolfgang Denk, DENX Software Engineering, wd at denx.de.
 #
 # See file CREDITS for list of people who contributed to this
@@ -262,6 +262,7 @@ TAG_SUBDIRS += cpu/mpc8xxx
 endif
 LIBS += drivers/rtc/librtc.a
 LIBS += drivers/serial/libserial.a
+LIBS += drivers/twserial/libtws.a
 LIBS += drivers/usb/libusb.a
 LIBS += drivers/video/libvideo.a
 LIBS += common/libcommon.a
diff --git a/drivers/twserial/Makefile b/drivers/twserial/Makefile
new file mode 100644
index 0000000..0b059f3
--- /dev/null
+++ b/drivers/twserial/Makefile
@@ -0,0 +1,46 @@
+#
+# (C) Copyright 2009
+# Detlev Zundel, DENX Software Engineering, dzu at 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
+
+LIB	:= $(obj)libtws.a
+
+COBJS-$(CONFIG_SOFT_TWS) += soft_tws.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
+
+#########################################################################
diff --git a/drivers/twserial/soft_tws.c b/drivers/twserial/soft_tws.c
new file mode 100644
index 0000000..0b50e1d
--- /dev/null
+++ b/drivers/twserial/soft_tws.c
@@ -0,0 +1,111 @@
+/*
+ * (C) Copyright 2009
+ * Detlev Zundel, DENX Software Engineering, dzu at 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
+ *
+ */
+
+#define TWS_IMPLEMENTATION
+#include <common.h>
+
+/*=====================================================================*/
+/*                         Public Functions                            */
+/*=====================================================================*/
+
+/*-----------------------------------------------------------------------
+ * Read bits
+ */
+int tws_read(uchar *buffer, int len)
+{
+	int rem = len;
+	uchar accu, shift;
+
+	debug("tws_read: buffer %p len %d\n", buffer, len);
+
+	/* Configure the data pin for input */
+	tws_data_config_output(0);
+
+	/* Disable WR, i.e. setup a read */
+	tws_wr(0);
+	udelay(1);
+
+	/* Rise CE */
+	tws_ce(1);
+	udelay(1);
+
+	for (; rem > 0; ) {
+		for (shift = 0, accu = 0;
+		     (rem > 0) && (shift < 8);
+		     rem--, shift++) {
+			tws_clk(1);
+			udelay(10);
+			accu |= (tws_data_read() << shift); /* LSB first */
+			tws_clk(0);
+			udelay(10);
+		}
+		*buffer++ = accu;
+	}
+
+	/* Lower CE */
+	tws_ce(0);
+
+	return len - rem;
+}
+
+
+/*-----------------------------------------------------------------------
+ * Write bits
+ */
+int tws_write(uchar *buffer, int len)
+{
+	int rem = len;
+	uchar accu, shift;
+
+	debug("tws_write: buffer %p len %d\n", buffer, len);
+
+	/* Configure the data pin for output */
+	tws_data_config_output(1);
+
+	/* Enable WR, i.e. setup a write */
+	tws_wr(1);
+	udelay(1);
+
+	/* Rise CE */
+	tws_ce(1);
+	udelay(1);
+
+	for (; rem > 0; ) {
+		for (shift = 0, accu = *buffer++;
+		     (rem > 0) && (shift < 8);
+		     rem--, shift++) {
+			tws_data(accu & 0x01); /* LSB first */
+			tws_clk(1);
+			udelay(10);
+			tws_clk(0);
+			udelay(10);
+			accu >>= 1;
+		}
+	}
+
+	/* Lower CE */
+	tws_ce(0);
+
+	return len - rem;
+}
diff --git a/include/tws.h b/include/tws.h
new file mode 100644
index 0000000..9dcc4b1
--- /dev/null
+++ b/include/tws.h
@@ -0,0 +1,38 @@
+/*
+ * (C) Copyright 2009
+ * Detlev Zundel, DENX Software Engineering, dzu at 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
+ *
+ */
+
+#ifndef _TWS_H_
+#define _TWS_H_
+
+/*
+ * Read/Write interface:
+ *   buffer:  Where to read/write the data
+ *   len:     How many bits to read/write
+ *
+ *   Returns: 0 on success, not 0 on failure
+ */
+int tws_read(uchar *buffer, int len);
+int tws_write(uchar *buffer, int len);
+
+#endif	/* _TWS_H_ */
-- 
1.6.0.6

[U-Boot] [PATCH v3 2/5] rtc: add support for 4543 RTC (manufactured by e.g. EPSON)

[Detlev Zundel]

Signed-off-by: Detlev Zundel <dzu@denx.de>
Signed-off-by: Andreas Pfefferle <ap@denx.de>
---
 drivers/rtc/Makefile  |    1 +
 drivers/rtc/rtc4543.c |  118 +++++++++++++++++++++++++++++++++++++++++++++++++
 include/rtc.h         |    4 ++
 3 files changed, 123 insertions(+), 0 deletions(-)
 create mode 100644 drivers/rtc/rtc4543.c

diff --git a/drivers/rtc/Makefile b/drivers/rtc/Makefile
index 94bc518..6adece2 100644
--- a/drivers/rtc/Makefile
+++ b/drivers/rtc/Makefile
@@ -55,6 +55,7 @@ COBJS-$(CONFIG_RTC_MPC8xx) += mpc8xx.o
 COBJS-$(CONFIG_RTC_PCF8563) += pcf8563.o
 COBJS-$(CONFIG_RTC_PL031) += pl031.o
 COBJS-$(CONFIG_RTC_RS5C372A) += rs5c372.o
+COBJS-$(CONFIG_RTC_RTC4543) += rtc4543.o
 COBJS-$(CONFIG_RTC_RX8025) += rx8025.o
 COBJS-$(CONFIG_RTC_S3C24X0) += s3c24x0_rtc.o
 COBJS-$(CONFIG_RTC_X1205) += x1205.o
diff --git a/drivers/rtc/rtc4543.c b/drivers/rtc/rtc4543.c
new file mode 100644
index 0000000..242d9bc
--- /dev/null
+++ b/drivers/rtc/rtc4543.c
@@ -0,0 +1,118 @@
+/*
+ * (C) Copyright 2008, 2009
+ * Andreas Pfefferle, DENX Software Engineering, ap at 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 <asm/io.h>
+#include <common.h>
+#include <command.h>
+#include <config.h>
+#include <bcd.h>
+#include <rtc.h>
+#include <tws.h>
+
+#if defined(CONFIG_CMD_DATE)
+
+/*
+ * Note: The acrobatics below is due to the hideously ingenius idea of
+ * the chip designers.  As the chip does not allow register
+ * addressing, all values need to be read and written in one go.  Sure
+ * enough, the 'wday' field (0-6) is transferred using the economic
+ * number of 4 bits right in the middle of the packet.....
+ */
+
+int rtc_get(struct rtc_time *tm)
+{
+	int rel = 0;
+	uchar buffer[7];
+
+	memset(buffer, 0, 7);
+
+	/* Read 52 bits into our buffer */
+	tws_read(buffer, 52);
+
+	tm->tm_sec  = BCD2BIN( buffer[0] & 0x7F);
+	tm->tm_min  = BCD2BIN( buffer[1] & 0x7F);
+	tm->tm_hour = BCD2BIN( buffer[2] & 0x3F);
+	tm->tm_wday = BCD2BIN( buffer[3] & 0x07);
+	tm->tm_mday = BCD2BIN((buffer[3] & 0xF0) >> 4 | (buffer[4] & 0x0F) << 4);
+	tm->tm_mon  = BCD2BIN((buffer[4] & 0x30) >> 4 | (buffer[5] & 0x0F) << 4);
+	tm->tm_year = BCD2BIN((buffer[5] & 0xF0) >> 4 | (buffer[6] & 0x0F) << 4) + 2000;
+	tm->tm_yday = 0;
+	tm->tm_isdst = 0;
+
+	if (tm->tm_sec & 0x80) {
+		puts("### Warning: RTC Low Voltage - date/time not reliable\n");
+		rel = -1;
+	}
+
+	debug("Get DATE: %4d-%02d-%02d (wday=%d)  TIME: %2d:%02d:%02d\n",
+		tm->tm_year, tm->tm_mon, tm->tm_mday, tm->tm_wday,
+		tm->tm_hour, tm->tm_min, tm->tm_sec);
+
+	return rel;
+}
+
+int rtc_set(struct rtc_time *tm)
+{
+	uchar buffer[7];
+	uchar tmp;
+
+	debug("Set DATE: %4d-%02d-%02d (wday=%d)  TIME: %2d:%02d:%02d\n",
+		tm->tm_year, tm->tm_mon, tm->tm_mday, tm->tm_wday,
+		tm->tm_hour, tm->tm_min, tm->tm_sec);
+
+	memset(buffer, 0, 7);
+	buffer[0] = BIN2BCD(tm->tm_sec);
+	buffer[1] = BIN2BCD(tm->tm_min);
+	buffer[2] = BIN2BCD(tm->tm_hour);
+	buffer[3] = BIN2BCD(tm->tm_wday);
+	tmp = BIN2BCD(tm->tm_mday);
+	buffer[3] |= (tmp & 0x0F) << 4;
+	buffer[4] =  (tmp & 0xF0) >> 4;
+	tmp = BIN2BCD(tm->tm_mon);
+	buffer[4] |= (tmp & 0x0F) << 4;
+	buffer[5] =  (tmp & 0xF0) >> 4;
+	tmp = BIN2BCD(tm->tm_year  % 100);
+	buffer[5] |= (tmp & 0x0F) << 4;
+	buffer[6] =  (tmp & 0xF0) >> 4;
+
+	/* Write the resulting 52 bits to device */
+	tws_write(buffer, 52);
+
+	return 0;
+}
+
+void rtc_reset(void)
+{
+	struct rtc_time tmp;
+
+	tmp.tm_sec = 0;
+	tmp.tm_min = 0;
+	tmp.tm_hour = 0;
+	tmp.tm_wday = 4;
+	tmp.tm_mday = 1;
+	tmp.tm_mon = 1;
+	tmp.tm_year = 2000;
+	rtc_set(&tmp);
+}
+
+#endif
diff --git a/include/rtc.h b/include/rtc.h
index 785fbe3..019c2eb 100644
--- a/include/rtc.h
+++ b/include/rtc.h
@@ -61,4 +61,8 @@ void to_tm (int, struct rtc_time *);
 unsigned long mktime (unsigned int, unsigned int, unsigned int,
 		      unsigned int, unsigned int, unsigned int);
 
+uchar rtc_read(uchar reg) __attribute__((weak));
+void  rtc_write(uchar reg, uchar val) __attribute__((weak));
+
+
 #endif	/* _RTC_H_ */
-- 
1.6.0.6

[U-Boot] [PATCH v3 3/5] inka4x0: Add hardware diagnosis functions for inka4x0

[Detlev Zundel]

This patch adds advanced diagnosis functions for the inka4x0 board.

Signed-off-by: Andreas Pfefferle <ap@denx.de>
Signed-off-by: Detlev Zundel <dzu@denx.de>
---
 board/inka4x0/Makefile    |    4 +-
 board/inka4x0/inka4x0.c   |   20 ++-
 board/inka4x0/inkadiag.c  |  514 +++++++++++++++++++++++++++++++++++++++++++++
 include/configs/inka4x0.h |    1 +
 include/ns16550.h         |   11 +
 5 files changed, 546 insertions(+), 4 deletions(-)
 create mode 100644 board/inka4x0/inkadiag.c

diff --git a/board/inka4x0/Makefile b/board/inka4x0/Makefile
index 442e2d0..82aa950 100644
--- a/board/inka4x0/Makefile
+++ b/board/inka4x0/Makefile
@@ -1,5 +1,5 @@
 #
-# (C) Copyright 2003-2006
+# (C) Copyright 2003-2009
 # Wolfgang Denk, DENX Software Engineering, wd at denx.de.
 #
 # See file CREDITS for list of people who contributed to this
@@ -25,7 +25,7 @@ include $(TOPDIR)/config.mk
 
 LIB	= $(obj)lib$(BOARD).a
 
-COBJS	:= $(BOARD).o
+COBJS	:= $(BOARD).o inkadiag.o
 
 SRCS	:= $(SOBJS:.o=.S) $(COBJS:.o=.c)
 OBJS	:= $(addprefix $(obj),$(COBJS))
diff --git a/board/inka4x0/inka4x0.c b/board/inka4x0/inka4x0.c
index 507196b..bb5c25d 100644
--- a/board/inka4x0/inka4x0.c
+++ b/board/inka4x0/inka4x0.c
@@ -1,6 +1,9 @@
 /*
- * (C) Copyright 2003-2004
- * Wolfgang Denk, DENX Software Engineering, wd at denx.de.
+ * (C) Copyright 2008-2009
+ * Andreas Pfefferle, DENX Software Engineering, ap at denx.de.
+ *
+ * (C) Copyright 2009
+ * Detlev Zundel, DENX Software Engineering, dzu at denx.de.
  *
  * (C) Copyright 2004
  * Mark Jonas, Freescale Semiconductor, mark.jonas at motorola.com.
@@ -8,6 +11,9 @@
  * (C) Copyright 2004
  * Martin Krause, TQ-Systems GmbH, martin.krause at tqs.de
  *
+ * (C) Copyright 2003-2004
+ * Wolfgang Denk, DENX Software Engineering, wd at denx.de.
+ *
  * See file CREDITS for list of people who contributed to this
  * project.
  *
@@ -171,6 +177,16 @@ void flash_preinit(void)
 	*(vu_long *)MPC5XXX_BOOTCS_CFG &= ~0x1; /* clear RO */
 }
 
+int misc_init_r (void) {
+	extern int inkadiag_init_r (void);
+
+	/*
+	 * The command table used for the subcommands of inkadiag
+	 * needs to be relocated manually.
+	 */
+	return inkadiag_init_r();
+}
+
 int misc_init_f (void)
 {
 	char tmp[10];
diff --git a/board/inka4x0/inkadiag.c b/board/inka4x0/inkadiag.c
new file mode 100644
index 0000000..06c9807
--- /dev/null
+++ b/board/inka4x0/inkadiag.c
@@ -0,0 +1,514 @@
+/*
+ * (C) Copyright 2008, 2009 Andreas Pfefferle,
+ *     DENX Software Engineering, ap at denx.de.
+ * (C) Copyright 2009 Detlev Zundel,
+ *     DENX Software Engineering, dzu at 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 <asm/io.h>
+#include <common.h>
+#include <config.h>
+#include <mpc5xxx.h>
+#include <pci.h>
+
+#include <command.h>
+
+/* This is needed for the includes in ns16550.h */
+#define CONFIG_SYS_NS16550_REG_SIZE 1
+#include <ns16550.h>
+
+#define GPIO_BASE		((u_char *)CONFIG_SYS_CS3_START)
+
+#define DIGIN_TOUCHSCR_MASK	0x00003000	/* Inputs 12-13 */
+#define DIGIN_KEYB_MASK		0x00010000	/* Input 16 */
+
+#define DIGIN_DRAWER_SW1	0x00400000	/* Input 22 */
+#define DIGIN_DRAWER_SW2	0x00800000	/* Input 23 */
+
+#define DIGIO_LED0		0x00000001	/* Output 0 */
+#define DIGIO_LED1		0x00000002	/* Output 1 */
+#define DIGIO_LED2		0x00000004	/* Output 2 */
+#define DIGIO_LED3		0x00000008	/* Output 3 */
+#define DIGIO_LED4		0x00000010	/* Output 4 */
+#define DIGIO_LED5		0x00000020	/* Output 5 */
+
+#define DIGIO_DRAWER1		0x00000100	/* Output 8 */
+#define DIGIO_DRAWER2		0x00000200	/* Output 9 */
+
+#define SERIAL_PORT_BASE	((u_char *)CONFIG_SYS_CS2_START)
+
+#define PSC_OP1_RTS	0x01
+#define PSC_OP0_RTS	0x01
+
+/*
+ * Table with supported baudrates (defined in inka4x0.h)
+ */
+static const unsigned long baudrate_table[] = CONFIG_SYS_BAUDRATE_TABLE;
+#define	N_BAUDRATES (sizeof(baudrate_table) / sizeof(baudrate_table[0]))
+
+static unsigned int inka_digin_get_input(void)
+{
+	return in_8(GPIO_BASE + 0) << 0 | in_8(GPIO_BASE + 1) << 8 |
+		in_8(GPIO_BASE + 2) << 16 | in_8(GPIO_BASE + 3) << 24;
+}
+
+#define LED_HIGH(NUM)							\
+	do {								\
+		setbits_be32((unsigned *)MPC5XXX_GPT##NUM##_ENABLE, 0x10); \
+	} while (0)
+
+#define LED_LOW(NUM)							\
+	do {								\
+		clrbits_be32((unsigned *)MPC5XXX_GPT##NUM##_ENABLE, 0x10); \
+	} while (0)
+
+#define CHECK_LED(NUM) \
+    do { \
+	    if (state & (1 << NUM)) {		\
+		    LED_HIGH(NUM);		\
+	    } else {				\
+		    LED_LOW(NUM);		\
+	    }					\
+    } while (0)
+
+static void inka_digio_set_output(unsigned int state, int which)
+{
+	volatile struct mpc5xxx_gpio *gpio = (struct mpc5xxx_gpio *)MPC5XXX_GPIO;
+
+	if (which == 0) {
+		/* other */
+		CHECK_LED(0);
+		CHECK_LED(1);
+		CHECK_LED(2);
+		CHECK_LED(3);
+		CHECK_LED(4);
+		CHECK_LED(5);
+	} else {
+		if (which == 1) {
+			/* drawer1 */
+			if (state) {
+				clrbits_be32(&gpio->simple_dvo, 0x1000);
+				udelay(1);
+				setbits_be32(&gpio->simple_dvo, 0x1000);
+			} else {
+				setbits_be32(&gpio->simple_dvo, 0x1000);
+				udelay(1);
+				clrbits_be32(&gpio->simple_dvo, 0x1000);
+			}
+		}
+		if (which == 2) {
+			/* drawer 2 */
+			if (state) {
+				clrbits_be32(&gpio->simple_dvo, 0x2000);
+				udelay(1);
+				setbits_be32(&gpio->simple_dvo, 0x2000);
+			} else {
+				setbits_be32(&gpio->simple_dvo, 0x2000);
+				udelay(1);
+				clrbits_be32(&gpio->simple_dvo, 0x2000);
+			}
+		}
+	}
+	udelay(1);
+}
+
+static int do_inkadiag_io(cmd_tbl_t *cmdtp, int flag, int argc,
+			  char *argv[]) {
+	unsigned int state, val;
+
+	switch (argc) {
+	case 3:
+		/* Write a value */
+		val = simple_strtol(argv[2], NULL, 16);
+
+		if (strcmp(argv[1], "drawer1") == 0) {
+			inka_digio_set_output(val, 1);
+		} else if (strcmp(argv[1], "drawer2") == 0) {
+			inka_digio_set_output(val, 2);
+		} else if (strcmp(argv[1], "other") == 0)
+			inka_digio_set_output(val, 0);
+		else {
+			printf("Invalid argument: %s\n", argv[1]);
+			return -1;
+		}
+		/* fall through */
+	case 2:
+		/* Read a value */
+		state = inka_digin_get_input();
+
+		if (strcmp(argv[1], "drawer1") == 0) {
+			val = (state & DIGIN_DRAWER_SW1) >> (ffs(DIGIN_DRAWER_SW1) - 1);
+		} else if (strcmp(argv[1], "drawer2") == 0) {
+			val = (state & DIGIN_DRAWER_SW2) >> (ffs(DIGIN_DRAWER_SW2) - 1);
+		} else if (strcmp(argv[1], "other") == 0) {
+			val = ((state & DIGIN_KEYB_MASK) >> (ffs(DIGIN_KEYB_MASK) - 1))
+				| (state & DIGIN_TOUCHSCR_MASK) >> (ffs(DIGIN_TOUCHSCR_MASK) - 2);
+		} else {
+			printf("Invalid argument: %s\n", argv[1]);
+			return -1;
+		}
+		printf("exit code: 0x%X\n", val);
+		return 0;
+	default:
+		cmd_usage(cmdtp);
+		break;
+	}
+
+	return -1;
+}
+
+DECLARE_GLOBAL_DATA_PTR;
+
+static int ser_init(volatile struct mpc5xxx_psc *psc, int baudrate)
+{
+	unsigned long baseclk;
+	int div;
+
+	/* reset PSC */
+	out_8(&psc->command, PSC_SEL_MODE_REG_1);
+
+	/* select clock sources */
+
+	out_be16(&psc->psc_clock_select, 0);
+	baseclk = (gd->ipb_clk + 16) / 32;
+
+	/* switch to UART mode */
+	out_be32(&psc->sicr, 0);
+
+	/* configure parity, bit length and so on */
+
+	out_8(&psc->mode, PSC_MODE_8_BITS | PSC_MODE_PARNONE);
+	out_8(&psc->mode, PSC_MODE_ONE_STOP);
+
+	/* set up UART divisor */
+	div = (baseclk + (baudrate / 2)) / baudrate;
+	out_8(&psc->ctur, (div >> 8) & 0xff);
+	out_8(&psc->ctlr, div & 0xff);
+
+	/* disable all interrupts */
+	out_be16(&psc->psc_imr, 0);
+
+	/* reset and enable Rx/Tx */
+	out_8(&psc->command, PSC_RST_RX);
+	out_8(&psc->command, PSC_RST_TX);
+	out_8(&psc->command, PSC_RX_ENABLE | PSC_TX_ENABLE);
+
+	return 0;
+}
+
+static void ser_putc(volatile struct mpc5xxx_psc *psc, const char c)
+{
+	/* Wait 1 second for last character to go. */
+	int i = 0;
+
+	while (!(psc->psc_status & PSC_SR_TXEMP) && (i++ < 1000000/10))
+		udelay(10);
+	psc->psc_buffer_8 = c;
+
+}
+
+static int ser_getc(volatile struct mpc5xxx_psc *psc)
+{
+	/* Wait for a character to arrive. */
+	int i = 0;
+
+	while (!(in_be16(&psc->psc_status) & PSC_SR_RXRDY) && (i++ < 1000000/10))
+		udelay(10);
+
+	return in_8(&psc->psc_buffer_8);
+}
+
+static int do_inkadiag_serial(cmd_tbl_t *cmdtp, int flag, int argc,
+			      char *argv[]) {
+	volatile struct NS16550 *uart;
+	volatile struct mpc5xxx_psc *psc;
+	unsigned int num, mode;
+	int combrd, baudrate, i, j, len;
+	int address;
+
+	if (argc < 5) {
+		cmd_usage(cmdtp);
+		return 1;
+	}
+
+	argc--;
+	argv++;
+
+	num = simple_strtol(argv[0], NULL, 0);
+	if (num < 0 || num > 11) {
+		printf("invalid argument for num: %d\n", num);
+		return -1;
+	}
+
+	mode = simple_strtol(argv[1], NULL, 0);
+
+	combrd = 0;
+	baudrate = simple_strtoul(argv[2], NULL, 10);
+	for (i=0; i<N_BAUDRATES; ++i) {
+		if (baudrate == baudrate_table[i])
+			break;
+	}
+	if (i == N_BAUDRATES) {
+		printf("## Baudrate %d bps not supported\n",
+		       baudrate);
+		return 1;
+	}
+	combrd = 115200 / baudrate;
+
+	uart = (struct NS16550 *)(SERIAL_PORT_BASE + (num << 3));
+
+	printf("Testing uart %d.\n\n", num);
+
+	if ((num >= 0) && (num <= 7)) {
+		if (mode & 1) {
+			/* turn on 'loopback' mode */
+			out_8(&uart->mcr, MCR_LOOP);
+		} else {
+			/*
+			 * establish the UART's operational parameters
+			 * set DLAB=1, so rbr accesses DLL
+			 */
+			out_8(&uart->lcr, LCR_DLAB);
+			/* set baudrate */
+			out_8(&uart->rbr, combrd);
+			/* set data-format: 8-N-1 */
+			out_8(&uart->lcr, LCR_WLS_8);
+		}
+
+		if (mode & 2) {
+			/* set request to send */
+			out_8(&uart->mcr, MCR_RTS);
+			udelay(10);
+			/* check clear to send */
+			if ((in_8(&uart->msr) & MSR_CTS) == 0x00)
+				return -1;
+		}
+		if (mode & 4) {
+			/* set data terminal ready */
+			out_8(&uart->mcr, MCR_DTR);
+			udelay(10);
+			/* check data set ready and carrier detect */
+			if ((in_8(&uart->msr) & (MSR_DSR | MSR_DCD))
+			    != (MSR_DSR | MSR_DCD))
+				return -1;
+		}
+
+		/* write each message-character, read it back, and display it */
+		for (i = 0, len = strlen(argv[3]); i < len; ++i) {
+			j = 0;
+			while ((in_8(&uart->lsr) & LSR_THRE) ==	0x00) {
+				if (j++ > CONFIG_SYS_HZ)
+					break;
+				udelay(10);
+			}
+			out_8(&uart->rbr, argv[3][i]);
+			j = 0;
+			while ((in_8(&uart->lsr) & LSR_DR) == 0x00) {
+				if (j++ > CONFIG_SYS_HZ)
+					break;
+				udelay(10);
+			}
+			printf("%c", in_8(&uart->rbr));
+		}
+		printf("\n\n");
+		out_8(&uart->mcr, 0x00);
+	} else {
+		address = 0;
+
+		switch (num) {
+		case 8:
+			address = MPC5XXX_PSC6;
+			break;
+		case 9:
+			address = MPC5XXX_PSC3;
+			break;
+		case 10:
+			address = MPC5XXX_PSC2;
+			break;
+		case 11:
+			address = MPC5XXX_PSC1;
+			break;
+		}
+		psc = (struct mpc5xxx_psc *)address;
+		ser_init(psc, simple_strtol(argv[2], NULL, 0));
+		if (mode & 2) {
+			/* set request to send */
+			out_8(&psc->op0, PSC_OP0_RTS);
+			udelay(10);
+			/* check clear to send */
+			if ((in_8(&psc->ip) & PSC_IPCR_CTS) == 0)
+				return -1;
+		}
+		len = strlen(argv[3]);
+		for (i = 0; i < len; ++i) {
+			ser_putc(psc, argv[3][i]);
+			printf("%c", ser_getc(psc));
+		}
+		printf("\n\n");
+	}
+	return 0;
+}
+
+#define BUZZER_GPT	(MPC5XXX_GPT + 0x60)	/* GPT6 */
+static void buzzer_turn_on(unsigned int freq)
+{
+	volatile struct mpc5xxx_gpt *gpt = (struct mpc5xxx_gpt *)(BUZZER_GPT);
+
+	const u32 prescale = gd->ipb_clk / freq / 128;
+	const u32 count = 128;
+	const u32 width = 64;
+
+	gpt->cir = (prescale << 16) | count;
+	gpt->pwmcr = width << 16;
+	gpt->emsr = 3;		/* Timer enabled for PWM */
+}
+
+static void buzzer_turn_off(void)
+{
+	volatile struct mpc5xxx_gpt *gpt = (struct mpc5xxx_gpt *)(BUZZER_GPT);
+
+	gpt->emsr = 0;
+}
+
+static int do_inkadiag_buzzer(cmd_tbl_t *cmdtp, int flag, int argc,
+			      char *argv[]) {
+
+	unsigned int period, freq;
+	int prev, i;
+
+	if (argc != 3) {
+		cmd_usage(cmdtp);
+		return 1;
+	}
+
+	argc--;
+	argv++;
+
+	period = simple_strtol(argv[0], NULL, 0);
+	if (!period)
+		printf("Zero period is senseless\n");
+	argc--;
+	argv++;
+
+	freq = simple_strtol(argv[0], NULL, 0);
+	/* avoid zero prescale in buzzer_turn_on() */
+	if (freq > gd->ipb_clk / 128) {
+		printf("%dHz exceeds maximum (%ldHz)\n", freq,
+		       gd->ipb_clk / 128);
+	} else if (!freq)
+		printf("Zero frequency is senseless\n");
+	else
+		buzzer_turn_on(freq);
+
+	clear_ctrlc();
+	prev = disable_ctrlc(0);
+
+	printf("Buzzing for %d ms. Type ^C to abort!\n\n", period);
+
+	i = 0;
+	while (!ctrlc() && (i++ < CONFIG_SYS_HZ))
+		udelay(period);
+
+	clear_ctrlc();
+	disable_ctrlc(prev);
+
+	buzzer_turn_off();
+
+	return 0;
+}
+
+static int do_inkadiag_help(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
+
+cmd_tbl_t cmd_inkadiag_sub[] = {
+	U_BOOT_CMD_MKENT(io, 1, 1, do_inkadiag_io, "read digital input",
+	 "<drawer1|drawer2|other> [value] - get or set specified signal\n"),
+	U_BOOT_CMD_MKENT(serial, 4, 1, do_inkadiag_serial, "test serial port",
+	 "<num> <mode> <baudrate> <msg>  - test uart num [0..11] in mode\n"
+	 "and baudrate with msg\n"),
+	U_BOOT_CMD_MKENT(buzzer, 2, 1, do_inkadiag_buzzer, "activate buzzer",
+	 "<period> <freq> - turn buzzer on for period ms with freq hz\n"),
+	U_BOOT_CMD_MKENT(help, 4, 1, do_inkadiag_help, "get help",
+	 "[command] - get help for command\n"),
+};
+
+static int do_inkadiag_help(cmd_tbl_t *cmdtp, int flag,
+			    int argc, char *argv[]) {
+	extern int _do_help (cmd_tbl_t *cmd_start, int cmd_items,
+			     cmd_tbl_t *cmdtp, int flag,
+			     int argc, char *argv[]);
+	/* do_help prints command name - we prepend inkadiag to our subcommands! */
+#ifdef CONFIG_SYS_LONGHELP
+	puts ("inkadiag ");
+#endif
+	return _do_help(&cmd_inkadiag_sub[0],
+		ARRAY_SIZE(cmd_inkadiag_sub), cmdtp, flag, argc, argv);
+}
+
+static int do_inkadiag(cmd_tbl_t *cmdtp, int flag, int argc,
+		       char *argv[]) {
+	cmd_tbl_t *c;
+
+	c = find_cmd_tbl(argv[1], &cmd_inkadiag_sub[0], ARRAY_SIZE(cmd_inkadiag_sub));
+
+	if (c) {
+		argc--;
+		argv++;
+		return c->cmd(c, flag, argc, argv);
+	} else {
+		/* Unrecognized command */
+		cmd_usage(cmdtp);
+		return 1;
+	}
+}
+
+U_BOOT_CMD(inkadiag, 6, 1, do_inkadiag,
+	   "inkadiag - inka diagnosis\n",
+	   "[inkadiag what ...]\n"
+	   "    - perform a diagnosis on inka hardware\n"
+	   "'inkadiag' performs hardware tests.\n\n");
+
+/* Relocate the command table function pointers when running in RAM */
+int inkadiag_init_r (void) {
+	cmd_tbl_t *cmdtp;
+
+	for (cmdtp = &cmd_inkadiag_sub[0]; cmdtp !=
+		     &cmd_inkadiag_sub[ARRAY_SIZE(cmd_inkadiag_sub)]; cmdtp++) {
+		ulong addr;
+
+		addr = (ulong) (cmdtp->cmd) + gd->reloc_off;
+		cmdtp->cmd = (int (*)(struct cmd_tbl_s *, int, int, char *[]))addr;
+
+		addr = (ulong)(cmdtp->name) + gd->reloc_off;
+		cmdtp->name = (char *)addr;
+
+		if (cmdtp->usage) {
+			addr = (ulong)(cmdtp->usage) + gd->reloc_off;
+			cmdtp->usage = (char *)addr;
+		}
+#ifdef CONFIG_SYS_LONGHELP
+		if (cmdtp->help) {
+			addr = (ulong)(cmdtp->help) + gd->reloc_off;
+			cmdtp->help = (char *)addr;
+		}
+#endif
+	}
+	return 0;
+}
diff --git a/include/configs/inka4x0.h b/include/configs/inka4x0.h
index e42fa6d..b80796d 100644
--- a/include/configs/inka4x0.h
+++ b/include/configs/inka4x0.h
@@ -39,6 +39,7 @@
 #define BOOTFLAG_WARM		0x02	/* Software reboot			*/
 
 #define CONFIG_MISC_INIT_F	1	/* Use misc_init_f()			*/
+#define CONFIG_MISC_INIT_R	1	/* Use misc_init_r()			*/
 
 #define CONFIG_HIGH_BATS	1	/* High BATs supported			*/
 
diff --git a/include/ns16550.h b/include/ns16550.h
index e6ade61..edfbc53 100644
--- a/include/ns16550.h
+++ b/include/ns16550.h
@@ -123,6 +123,7 @@ typedef volatile struct NS16550 *NS16550_t;
 #define MCR_RTS         0x02
 #define MCR_DMA_EN      0x04
 #define MCR_TX_DFR      0x08
+#define MCR_LOOP	0x10		/* Enable loopback test mode */
 
 #define LCR_WLS_MSK	0x03		/* character length select mask */
 #define LCR_WLS_5	0x00		/* 5 bit character length */
@@ -135,6 +136,7 @@ typedef volatile struct NS16550 *NS16550_t;
 #define LCR_STKP	0x20		/* Stick Parity */
 #define LCR_SBRK	0x40		/* Set Break */
 #define LCR_BKSE	0x80		/* Bank select enable */
+#define LCR_DLAB	0x80		/* Divisor latch access bit */
 
 #define LSR_DR		0x01		/* Data ready */
 #define LSR_OE		0x02		/* Overrun */
@@ -145,6 +147,15 @@ typedef volatile struct NS16550 *NS16550_t;
 #define LSR_TEMT	0x40		/* Xmitter empty */
 #define LSR_ERR		0x80		/* Error */
 
+#define MSR_DCD		0x80		/* Data Carrier Detect */
+#define MSR_RI		0x40		/* Ring Indicator */
+#define MSR_DSR		0x20		/* Data Set Ready */
+#define MSR_CTS		0x10		/* Clear to Send */
+#define MSR_DDCD	0x08		/* Delta DCD */
+#define MSR_TERI	0x04		/* Trailing edge ring indicator */
+#define MSR_DDSR	0x02		/* Delta DSR */
+#define MSR_DCTS	0x01		/* Delta CTS */
+
 #ifdef CONFIG_OMAP1510
 #define OSC_12M_SEL	0x01		/* selects 6.5 * current clk div */
 #endif
-- 
1.6.0.6

[U-Boot] [PATCH v3 4/5] inka4x0: Add hardware diagnosis and RTC in configuration.

[Detlev Zundel]

This patch adds the board specific communication routines needed by
the external 4543 RTC.

Signed-off-by: Detlev Zundel <dzu@denx.de>
Signed-off-by: Andreas Pfefferle <ap@denx.de>
---
 board/inka4x0/inka4x0.c   |   20 ++++++++++
 include/configs/inka4x0.h |   90 ++++++++++++++++++++++++++++++++++++++++++--
 2 files changed, 105 insertions(+), 5 deletions(-)

diff --git a/board/inka4x0/inka4x0.c b/board/inka4x0/inka4x0.c
index bb5c25d..a8bc3b3 100644
--- a/board/inka4x0/inka4x0.c
+++ b/board/inka4x0/inka4x0.c
@@ -33,6 +33,7 @@
  * MA 02111-1307 USA
  */
 
+#include <asm/io.h>
 #include <common.h>
 #include <mpc5xxx.h>
 #include <pci.h>
@@ -189,6 +190,8 @@ int misc_init_r (void) {
 
 int misc_init_f (void)
 {
+	struct mpc5xxx_gpio *gpio = (struct mpc5xxx_gpio *)MPC5XXX_GPIO;
+	struct mpc5xxx_wu_gpio *wu_gpio = (struct mpc5xxx_wu_gpio *)MPC5XXX_WU_GPIO;
 	char tmp[10];
 	int i, br;
 
@@ -236,6 +239,23 @@ int misc_init_f (void)
 	*(vu_long *) MPC5XXX_WU_GPIO_ENABLE |= GPIO_PSC3_9;
 	*(vu_long *) MPC5XXX_WU_GPIO_DIR    |= GPIO_PSC3_9;
 	*(vu_long *) MPC5XXX_WU_GPIO_DATA_O   |= GPIO_PSC3_9;
+
+	/*
+	 * Configure three wire serial interface to RTC (PSC1_4,
+	 * PSC2_4, PSC3_4, PSC3_5)
+	 */
+	setbits_8(&wu_gpio->enable,  MPC5XXX_GPIO_WKUP_PSC1_4 |
+				     MPC5XXX_GPIO_WKUP_PSC2_4);
+	setbits_8(&wu_gpio->ddr,     MPC5XXX_GPIO_WKUP_PSC1_4 |
+				     MPC5XXX_GPIO_WKUP_PSC2_4);
+	clrbits_8(&wu_gpio->dvo,     MPC5XXX_GPIO_WKUP_PSC1_4);
+	clrbits_8(&gpio->sint_inten, MPC5XXX_GPIO_SINT_PSC3_4 |
+				     MPC5XXX_GPIO_SINT_PSC3_5);
+	setbits_8(&gpio->sint_gpioe, MPC5XXX_GPIO_SINT_PSC3_4 |
+				     MPC5XXX_GPIO_SINT_PSC3_5);
+	setbits_8(&gpio->sint_ddr,   MPC5XXX_GPIO_SINT_PSC3_5);
+	clrbits_8(&gpio->sint_dvo,   MPC5XXX_GPIO_SINT_PSC3_5);
+
 	return 0;
 }
 
diff --git a/include/configs/inka4x0.h b/include/configs/inka4x0.h
index b80796d..5f06b09 100644
--- a/include/configs/inka4x0.h
+++ b/include/configs/inka4x0.h
@@ -1,4 +1,7 @@
 /*
+ * (C) Copyright 2009
+ * Detlev Zundel, DENX Software Engineering, dzu at denx.de.
+ *
  * (C) Copyright 2003-2005
  * Wolfgang Denk, DENX Software Engineering, wd at denx.de.
  *
@@ -90,16 +93,17 @@
  */
 #include <config_cmd_default.h>
 
+#define CONFIG_CMD_DATE
 #define CONFIG_CMD_DHCP
 #define CONFIG_CMD_EXT2
 #define CONFIG_CMD_FAT
 #define CONFIG_CMD_IDE
 #define CONFIG_CMD_NFS
 #define CONFIG_CMD_PCI
+#define CONFIG_CMD_PING
 #define CONFIG_CMD_SNTP
 #define CONFIG_CMD_USB
 
-
 #define	CONFIG_TIMESTAMP	1	/* Print image info with timestamp */
 
 #if (TEXT_BASE == 0xFFE00000)		/* Boot low */
@@ -240,15 +244,91 @@
  *	01 -> CAN1 on I2C1, CAN2 on Tmr0/1 do not use on TQM5200 with onboard
  *	      EEPROM
  * use PSC1 as UART: Bits 28-31 (mask: 0x00000007): 0100
- * use PSC6_1 and PSC6_3 as GPIO: Bits 9:11 (mask: 0x07000000):
- *	011 -> PSC6 could not be used as UART or CODEC. IrDA still possible.
+ * use PSC2 as UART: Bits 24-27 (mask: 0x00000070): 0100
+ * use PSC3 as UART: Bits 20-23 (mask: 0x00000700): 0100
+ * use PSC6 as UART: Bits  9-11 (mask: 0x00700000): 0101
  */
-#define CONFIG_SYS_GPS_PORT_CONFIG	0x01001004
+#define CONFIG_SYS_GPS_PORT_CONFIG	0x01501444
 
 /*
  * RTC configuration
  */
-#define CONFIG_RTC_MPC5200	1	/* use internal MPC5200 RTC */
+#define CONFIG_RTC_RTC4543 	1	/* use external RTC */
+
+/*
+ * Software (bit-bang) three wire serial configuration
+ *
+ * Note that we need the ifdefs because otherwise compilation of
+ * mkimage.c fails.
+ */
+#define CONFIG_SOFT_TWS		1
+
+#ifdef TWS_IMPLEMENTATION
+#include <mpc5xxx.h>
+#include <asm/io.h>
+
+#define TWS_CE		MPC5XXX_GPIO_WKUP_PSC1_4 /* GPIO_WKUP_0 */
+#define TWS_WR		MPC5XXX_GPIO_WKUP_PSC2_4 /* GPIO_WKUP_1 */
+#define TWS_DATA	MPC5XXX_GPIO_SINT_PSC3_4 /* GPIO_SINT_0 */
+#define TWS_CLK		MPC5XXX_GPIO_SINT_PSC3_5 /* GPIO_SINT_1 */
+
+static inline void tws_ce(unsigned bit)
+{
+	struct mpc5xxx_wu_gpio *wu_gpio =
+		(struct mpc5xxx_wu_gpio *)MPC5XXX_WU_GPIO;
+	if (bit)
+		setbits_8(&wu_gpio->dvo, TWS_CE);
+	else
+		clrbits_8(&wu_gpio->dvo, TWS_CE);
+}
+
+static inline void tws_wr(unsigned bit)
+{
+	struct mpc5xxx_wu_gpio *wu_gpio =
+		(struct mpc5xxx_wu_gpio *)MPC5XXX_WU_GPIO;
+	if (bit)
+		setbits_8(&wu_gpio->dvo, TWS_WR);
+	else
+		clrbits_8(&wu_gpio->dvo, TWS_WR);
+}
+
+static inline void tws_clk(unsigned bit)
+{
+	struct mpc5xxx_gpio *gpio =
+		(struct mpc5xxx_gpio *)MPC5XXX_GPIO;
+	if (bit)
+		setbits_8(&gpio->sint_dvo, TWS_CLK);
+	else
+		clrbits_8(&gpio->sint_dvo, TWS_CLK);
+}
+
+static inline void tws_data(unsigned bit)
+{
+	struct mpc5xxx_gpio *gpio =
+		(struct mpc5xxx_gpio *)MPC5XXX_GPIO;
+	if (bit)
+		setbits_8(&gpio->sint_dvo, TWS_DATA);
+	else
+		clrbits_8(&gpio->sint_dvo, TWS_DATA);
+}
+
+static inline unsigned tws_data_read(void)
+{
+	struct mpc5xxx_gpio *gpio =
+			(struct mpc5xxx_gpio *)MPC5XXX_GPIO;
+	return !!(in_8(&gpio->sint_ival) & TWS_DATA);
+}
+
+static inline void tws_data_config_output(unsigned output)
+{
+	struct mpc5xxx_gpio *gpio =
+		(struct mpc5xxx_gpio *)MPC5XXX_GPIO;
+	if (output)
+		setbits_8(&gpio->sint_ddr, TWS_DATA);
+	else
+		clrbits_8(&gpio->sint_ddr, TWS_DATA);
+}
+#endif /* TWS_IMPLEMENTATION */
 
 /*
  * Miscellaneous configurable options
-- 
1.6.0.6

[U-Boot] [PATCH v3 5/5] inka4x0: Use proper accessor macros for memory mapped registers.

[Detlev Zundel]

Signed-off-by: Detlev Zundel <dzu@denx.de>
---
 board/inka4x0/inka4x0.c |  139 +++++++++++++++++++++++++----------------------
 1 files changed, 75 insertions(+), 64 deletions(-)

diff --git a/board/inka4x0/inka4x0.c b/board/inka4x0/inka4x0.c
index a8bc3b3..7428b92 100644
--- a/board/inka4x0/inka4x0.c
+++ b/board/inka4x0/inka4x0.c
@@ -55,41 +55,35 @@
 #ifndef CONFIG_SYS_RAMBOOT
 static void sdram_start (int hi_addr)
 {
+	volatile struct mpc5xxx_sdram *sdram =
+		(struct mpc5xxx_sdram *)MPC5XXX_SDRAM;
 	long hi_addr_bit = hi_addr ? 0x01000000 : 0;
 
 	/* unlock mode register */
-	*(vu_long *)MPC5XXX_SDRAM_CTRL = SDRAM_CONTROL | 0x80000000 | hi_addr_bit;
-	__asm__ volatile ("sync");
+	out_be32(&sdram->ctrl, SDRAM_CONTROL | 0x80000000 | hi_addr_bit);
 
 	/* precharge all banks */
-	*(vu_long *)MPC5XXX_SDRAM_CTRL = SDRAM_CONTROL | 0x80000002 | hi_addr_bit;
-	__asm__ volatile ("sync");
+	out_be32(&sdram->ctrl, SDRAM_CONTROL | 0x80000002 | hi_addr_bit);
 
 #if SDRAM_DDR
 	/* set mode register: extended mode */
-	*(vu_long *)MPC5XXX_SDRAM_MODE = SDRAM_EMODE;
-	__asm__ volatile ("sync");
+	out_be32(&sdram->mode, SDRAM_EMODE);
 
 	/* set mode register: reset DLL */
-	*(vu_long *)MPC5XXX_SDRAM_MODE = SDRAM_MODE | 0x04000000;
-	__asm__ volatile ("sync");
+	out_be32(&sdram->mode, SDRAM_MODE | 0x04000000);
 #endif
 
 	/* precharge all banks */
-	*(vu_long *)MPC5XXX_SDRAM_CTRL = SDRAM_CONTROL | 0x80000002 | hi_addr_bit;
-	__asm__ volatile ("sync");
+	out_be32(&sdram->ctrl, SDRAM_CONTROL | 0x80000002 | hi_addr_bit);
 
 	/* auto refresh */
-	*(vu_long *)MPC5XXX_SDRAM_CTRL = SDRAM_CONTROL | 0x80000004 | hi_addr_bit;
-	__asm__ volatile ("sync");
+	out_be32(&sdram->ctrl, SDRAM_CONTROL | 0x80000004 | hi_addr_bit);
 
 	/* set mode register */
-	*(vu_long *)MPC5XXX_SDRAM_MODE = SDRAM_MODE;
-	__asm__ volatile ("sync");
+	out_be32(&sdram->mode, SDRAM_MODE);
 
 	/* normal operation */
-	*(vu_long *)MPC5XXX_SDRAM_CTRL = SDRAM_CONTROL | hi_addr_bit;
-	__asm__ volatile ("sync");
+	out_be32(&sdram->ctrl, SDRAM_CONTROL | hi_addr_bit);
 }
 #endif
 
@@ -101,24 +95,27 @@ static void sdram_start (int hi_addr)
 
 phys_size_t initdram (int board_type)
 {
+	volatile struct mpc5xxx_mmap_ctl *mm =
+		(struct mpc5xxx_mmap_ctl *) CONFIG_SYS_MBAR;
+	volatile struct mpc5xxx_cdm     *cdm =
+		(struct mpc5xxx_cdm *)      MPC5XXX_CDM;
+	volatile struct mpc5xxx_sdram *sdram =
+		(struct mpc5xxx_sdram *)    MPC5XXX_SDRAM;
 	ulong dramsize = 0;
 #ifndef CONFIG_SYS_RAMBOOT
 	long test1, test2;
 
 	/* setup SDRAM chip selects */
-	*(vu_long *)MPC5XXX_SDRAM_CS0CFG = 0x0000001c; /* 512MB at 0x0 */
-	*(vu_long *)MPC5XXX_SDRAM_CS1CFG = 0x40000000; /* disabled */
-	__asm__ volatile ("sync");
+	out_be32(&mm->sdram0, 0x0000001c);	/* 512MB at 0x0 */
+	out_be32(&mm->sdram1, 0x40000000);	/* disabled */
 
 	/* setup config registers */
-	*(vu_long *)MPC5XXX_SDRAM_CONFIG1 = SDRAM_CONFIG1;
-	*(vu_long *)MPC5XXX_SDRAM_CONFIG2 = SDRAM_CONFIG2;
-	__asm__ volatile ("sync");
+	out_be32(&sdram->config1, SDRAM_CONFIG1);
+	out_be32(&sdram->config2, SDRAM_CONFIG2);
 
 #if SDRAM_DDR
 	/* set tap delay */
-	*(vu_long *)MPC5XXX_CDM_PORCFG = SDRAM_TAPDELAY;
-	__asm__ volatile ("sync");
+	out_be32(&cdm->porcfg, SDRAM_TAPDELAY);
 #endif
 
 	/* find RAM size using SDRAM CS0 only */
@@ -140,17 +137,17 @@ phys_size_t initdram (int board_type)
 
 	/* set SDRAM CS0 size according to the amount of RAM found */
 	if (dramsize > 0) {
-		*(vu_long *)MPC5XXX_SDRAM_CS0CFG = 0x13 +
-			__builtin_ffs(dramsize >> 20) - 1;
+		out_be32(&mm->sdram0, 0x13 +
+			 __builtin_ffs(dramsize >> 20) - 1);
 	} else {
-		*(vu_long *)MPC5XXX_SDRAM_CS0CFG = 0; /* disabled */
+		out_be32(&mm->sdram0, 0); /* disabled */
 	}
 
-	*(vu_long *)MPC5XXX_SDRAM_CS1CFG = dramsize; /* disabled */
+	out_be32(&mm->sdram1, dramsize); /* disabled */
 #else /* CONFIG_SYS_RAMBOOT */
 
 	/* retrieve size of memory connected to SDRAM CS0 */
-	dramsize = *(vu_long *)MPC5XXX_SDRAM_CS0CFG & 0xFF;
+	dramsize = in_be32(&mm->sdram0) & 0xFF;
 	if (dramsize >= 0x13) {
 		dramsize = (1 << (dramsize - 0x13)) << 20;
 	} else {
@@ -169,13 +166,15 @@ int checkboard (void)
 
 void flash_preinit(void)
 {
+	volatile struct mpc5xxx_lpb *lpb = (struct mpc5xxx_lpb *)MPC5XXX_LPB;
+
 	/*
 	 * Now, when we are in RAM, enable flash write
 	 * access for detection process.
-	 * Note that CS_BOOT cannot be cleared when
+	 * Note that CS_BOOT (CS0) cannot be cleared when
 	 * executing in flash.
 	 */
-	*(vu_long *)MPC5XXX_BOOTCS_CFG &= ~0x1; /* clear RO */
+	clrbits_be32(&lpb->cs0_cfg, 0x1); /* clear RO */
 }
 
 int misc_init_r (void) {
@@ -190,8 +189,11 @@ int misc_init_r (void) {
 
 int misc_init_f (void)
 {
-	struct mpc5xxx_gpio *gpio = (struct mpc5xxx_gpio *)MPC5XXX_GPIO;
-	struct mpc5xxx_wu_gpio *wu_gpio = (struct mpc5xxx_wu_gpio *)MPC5XXX_WU_GPIO;
+	volatile struct mpc5xxx_gpio	*gpio    =
+		(struct mpc5xxx_gpio *)   MPC5XXX_GPIO;
+	volatile struct mpc5xxx_wu_gpio	*wu_gpio =
+		(struct mpc5xxx_wu_gpio *)MPC5XXX_WU_GPIO;
+	volatile struct mpc5xxx_gpt	*gpt;
 	char tmp[10];
 	int i, br;
 
@@ -205,40 +207,43 @@ int misc_init_f (void)
 	/* Initialize GPIO output pins.
 	 */
 	/* Configure GPT as GPIO output (and set them as they control low-active LEDs */
-	*(vu_long *)MPC5XXX_GPT0_ENABLE =
-	*(vu_long *)MPC5XXX_GPT1_ENABLE =
-	*(vu_long *)MPC5XXX_GPT2_ENABLE =
-	*(vu_long *)MPC5XXX_GPT3_ENABLE =
-	*(vu_long *)MPC5XXX_GPT4_ENABLE =
-	*(vu_long *)MPC5XXX_GPT5_ENABLE = 0x34;
+	for (i = 0; i <= 5; i++) {
+		gpt = (struct mpc5xxx_gpt *)(MPC5XXX_GPT + (i * 0x10));
+		out_be32(&gpt->emsr, 0x34);
+	}
 
 	/* Configure GPT7 as PWM timer, 1kHz, no ints. */
-	*(vu_long *)MPC5XXX_GPT7_ENABLE = 0;/* Disable */
-	*(vu_long *)MPC5XXX_GPT7_COUNTER = 0x020000fe;
-	*(vu_long *)MPC5XXX_GPT7_PWMCFG = (br << 16);
-	*(vu_long *)MPC5XXX_GPT7_ENABLE = 0x3;/* Enable PWM mode and start */
+	gpt = (struct mpc5xxx_gpt *)(MPC5XXX_GPT + (7 * 0x10));
+	out_be32(&gpt->emsr,  0);		/* Disable */
+	out_be32(&gpt->cir,   0x020000fe);
+	out_be32(&gpt->pwmcr, (br << 16));
+	out_be32(&gpt->emsr,  0x3);		/* Enable PWM mode and start */
 
 	/* Configure PSC3_6,7 as GPIO output */
-	*(vu_long *)MPC5XXX_GPIO_ENABLE |= 0x00003000;
-	*(vu_long *)MPC5XXX_GPIO_DIR |= 0x00003000;
-
-	/* Configure PSC3_8 as GPIO output, no interrupt */
-	*(vu_long *)MPC5XXX_GPIO_SI_ENABLE |= 0x04000000;
-	*(vu_long *)MPC5XXX_GPIO_SI_DIR |= 0x04000000;
-	*(vu_long *)MPC5XXX_GPIO_SI_IEN &= ~0x04000000;
+	setbits_be32(&gpio->simple_gpioe, MPC5XXX_GPIO_SIMPLE_PSC3_6 |
+					  MPC5XXX_GPIO_SIMPLE_PSC3_7);
+	setbits_be32(&gpio->simple_ddr,   MPC5XXX_GPIO_SIMPLE_PSC3_6 |
+					  MPC5XXX_GPIO_SIMPLE_PSC3_7);
 
 	/* Configure PSC3_9 and GPIO_WKUP6,7 as GPIO output */
-	*(vu_long *)MPC5XXX_WU_GPIO_ENABLE |= 0xc4000000;
-	*(vu_long *)MPC5XXX_WU_GPIO_DIR |= 0xc4000000;
+	setbits_8(&wu_gpio->enable,  MPC5XXX_GPIO_WKUP_6 |
+				     MPC5XXX_GPIO_WKUP_7 |
+				     MPC5XXX_GPIO_WKUP_PSC3_9);
+	setbits_8(&wu_gpio->ddr,     MPC5XXX_GPIO_WKUP_6 |
+				     MPC5XXX_GPIO_WKUP_7 |
+				     MPC5XXX_GPIO_WKUP_PSC3_9);
 
 	/* Set LR mirror bit because it is low-active */
-	*(vu_long *) MPC5XXX_WU_GPIO_DATA_O    |= GPIO_WKUP_7;
-	/*
-	 * Reset Coral-P graphics controller
-	 */
-	*(vu_long *) MPC5XXX_WU_GPIO_ENABLE |= GPIO_PSC3_9;
-	*(vu_long *) MPC5XXX_WU_GPIO_DIR    |= GPIO_PSC3_9;
-	*(vu_long *) MPC5XXX_WU_GPIO_DATA_O   |= GPIO_PSC3_9;
+	setbits_8(&wu_gpio->dvo,     MPC5XXX_GPIO_WKUP_7);
+
+	/* Reset Coral-P graphics controller */
+	setbits_8(&wu_gpio->dvo,     MPC5XXX_GPIO_WKUP_PSC3_9);
+
+	/* Enable display backlight */
+	clrbits_8(&gpio->sint_inten, MPC5XXX_GPIO_SINT_PSC3_8);
+	setbits_8(&gpio->sint_gpioe, MPC5XXX_GPIO_SINT_PSC3_8);
+	setbits_8(&gpio->sint_ddr,   MPC5XXX_GPIO_SINT_PSC3_8);
+	setbits_8(&gpio->sint_dvo,   MPC5XXX_GPIO_SINT_PSC3_8);
 
 	/*
 	 * Configure three wire serial interface to RTC (PSC1_4,
@@ -274,25 +279,31 @@ void pci_init_board(void)
 
 void init_ide_reset (void)
 {
+	volatile struct mpc5xxx_wu_gpio	*wu_gpio =
+		(struct mpc5xxx_wu_gpio *)MPC5XXX_WU_GPIO;
+
 	debug ("init_ide_reset\n");
 
 	/* Configure PSC1_4 as GPIO output for ATA reset */
-	*(vu_long *) MPC5XXX_WU_GPIO_ENABLE |= GPIO_PSC1_4;
-	*(vu_long *) MPC5XXX_WU_GPIO_DIR    |= GPIO_PSC1_4;
+	setbits_8(&wu_gpio->enable, MPC5XXX_GPIO_WKUP_PSC1_4);
+	setbits_8(&wu_gpio->ddr,    MPC5XXX_GPIO_WKUP_PSC1_4);
 	/* Deassert reset */
-	*(vu_long *) MPC5XXX_WU_GPIO_DATA_O   |= GPIO_PSC1_4;
+	setbits_8(&wu_gpio->dvo,    MPC5XXX_GPIO_WKUP_PSC1_4);
 }
 
 void ide_set_reset (int idereset)
 {
+	volatile struct mpc5xxx_wu_gpio	*wu_gpio =
+		(struct mpc5xxx_wu_gpio *)MPC5XXX_WU_GPIO;
+
 	debug ("ide_reset(%d)\n", idereset);
 
 	if (idereset) {
-		*(vu_long *) MPC5XXX_WU_GPIO_DATA_O &= ~GPIO_PSC1_4;
+		clrbits_8(&wu_gpio->dvo, MPC5XXX_GPIO_WKUP_PSC1_4);
 		/* Make a delay. MPC5200 spec says 25 usec min */
 		udelay(500000);
 	} else {
-		*(vu_long *) MPC5XXX_WU_GPIO_DATA_O |=  GPIO_PSC1_4;
+		setbits_8(&wu_gpio->dvo, MPC5XXX_GPIO_WKUP_PSC1_4);
 	}
 }
 #endif
-- 
1.6.0.6

[U-Boot] [PATCH v3 1/5] drivers/twserial: Add protocol driver for "three wire serial" interface.

[Wolfgang Denk]

Dear Detlev Zundel,

In message <1238365896-20271-2-git-send-email-dzu@denx.de> you wrote:
> This pretty unintelligent interface is used on some RTC chips.
> 
> Signed-off-by: Detlev Zundel <dzu@denx.de>
> ---
>  Makefile                    |    3 +-
>  drivers/twserial/Makefile   |   46 ++++++++++++++++++
>  drivers/twserial/soft_tws.c |  111 +++++++++++++++++++++++++++++++++++++++++++
>  include/tws.h               |   38 +++++++++++++++
>  4 files changed, 197 insertions(+), 1 deletions(-)
>  create mode 100644 drivers/twserial/Makefile
>  create mode 100644 drivers/twserial/soft_tws.c
>  create mode 100644 include/tws.h

Applied, thanks.

Best regards,

Wolfgang Denk

-- 
DENX Software Engineering GmbH,     MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
What can it profit a man to gain the whole world and to come  to  his
property with a gastric ulcer, a blown prostate, and bifocals?
                                     -- John Steinbeck, _Cannery Row_

[U-Boot] [PATCH v3 2/5] rtc: add support for 4543 RTC (manufactured by e.g. EPSON)

[Wolfgang Denk]

Dear Detlev Zundel,

In message <1238365896-20271-3-git-send-email-dzu@denx.de> you wrote:
> Signed-off-by: Detlev Zundel <dzu@denx.de>
> Signed-off-by: Andreas Pfefferle <ap@denx.de>
> ---
>  drivers/rtc/Makefile  |    1 +
>  drivers/rtc/rtc4543.c |  118 +++++++++++++++++++++++++++++++++++++++++++++++++
>  include/rtc.h         |    4 ++
>  3 files changed, 123 insertions(+), 0 deletions(-)
>  create mode 100644 drivers/rtc/rtc4543.c

Applied, thanks.

Best regards,

Wolfgang Denk

-- 
DENX Software Engineering GmbH,     MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
A secure program has to be robust: it  must  be  able  to  deal  with
conditions  that "can't happen", whether user input, program error or
library/etc. This is basic damage  control.  Buffer  overflow  errors
have nothing to do with security, but everything with stupidity.
                 -- Wietse Venema in <5cnqm3$8r9@spike.porcupine.org>

[U-Boot] [PATCH v3 3/5] inka4x0: Add hardware diagnosis functions for inka4x0

[Wolfgang Denk]

Dear Detlev Zundel,

In message <1238365896-20271-4-git-send-email-dzu@denx.de> you wrote:
> This patch adds advanced diagnosis functions for the inka4x0 board.
> 
> Signed-off-by: Andreas Pfefferle <ap@denx.de>
> Signed-off-by: Detlev Zundel <dzu@denx.de>
> ---
>  board/inka4x0/Makefile    |    4 +-
>  board/inka4x0/inka4x0.c   |   20 ++-
>  board/inka4x0/inkadiag.c  |  514 +++++++++++++++++++++++++++++++++++++++++++++
>  include/configs/inka4x0.h |    1 +
>  include/ns16550.h         |   11 +
>  5 files changed, 546 insertions(+), 4 deletions(-)
>  create mode 100644 board/inka4x0/inkadiag.c

Applied, thanks.

Best regards,

Wolfgang Denk

-- 
DENX Software Engineering GmbH,     MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
"Wagner's music is better than it sounds."               - Mark Twain

[U-Boot] [PATCH v3 4/5] inka4x0: Add hardware diagnosis and RTC in configuration.

[Wolfgang Denk]

Dear Detlev Zundel,

In message <1238365896-20271-5-git-send-email-dzu@denx.de> you wrote:
> This patch adds the board specific communication routines needed by
> the external 4543 RTC.
> 
> Signed-off-by: Detlev Zundel <dzu@denx.de>
> Signed-off-by: Andreas Pfefferle <ap@denx.de>
> ---
>  board/inka4x0/inka4x0.c   |   20 ++++++++++
>  include/configs/inka4x0.h |   90 ++++++++++++++++++++++++++++++++++++++++++--
>  2 files changed, 105 insertions(+), 5 deletions(-)

Applied, thanks.

Best regards,

Wolfgang Denk

-- 
DENX Software Engineering GmbH,     MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
Quote from the Boss after overriding the decision of a task force  he
created  to  find  a  solution:  "I'm  sorry  if  I ever gave you the
impression your input would have any effect on my  decision  for  the
outcome of this project!"

[U-Boot] [PATCH v3 5/5] inka4x0: Use proper accessor macros for memory mapped registers.

[Wolfgang Denk]

Dear Detlev Zundel,

In message <1238365896-20271-6-git-send-email-dzu@denx.de> you wrote:
> Signed-off-by: Detlev Zundel <dzu@denx.de>
> ---
>  board/inka4x0/inka4x0.c |  139 +++++++++++++++++++++++++----------------------
>  1 files changed, 75 insertions(+), 64 deletions(-)

Applied, thanks.

Best regards,

Wolfgang Denk

-- 
DENX Software Engineering GmbH,     MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
Was hei?t Windows auf Indianisch? - "Wei?er  Mann,  der  auf  Sanduhr
wartet!"