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-rw-r--r--arch/mips/jmr3927/common/Makefile5
-rw-r--r--arch/mips/jmr3927/common/prom.c81
-rw-r--r--arch/mips/jmr3927/common/puts.c168
-rw-r--r--arch/mips/jmr3927/common/rtc_ds1742.c165
4 files changed, 419 insertions, 0 deletions
diff --git a/arch/mips/jmr3927/common/Makefile b/arch/mips/jmr3927/common/Makefile
new file mode 100644
index 00000000000..cb09a8eede1
--- /dev/null
+++ b/arch/mips/jmr3927/common/Makefile
@@ -0,0 +1,5 @@
+#
+# Makefile for the common code of TOSHIBA JMR-TX3927 board
+#
+
+obj-y += prom.o puts.o rtc_ds1742.o
diff --git a/arch/mips/jmr3927/common/prom.c b/arch/mips/jmr3927/common/prom.c
new file mode 100644
index 00000000000..5d5838f41d2
--- /dev/null
+++ b/arch/mips/jmr3927/common/prom.c
@@ -0,0 +1,81 @@
+/*
+ * BRIEF MODULE DESCRIPTION
+ * PROM library initialisation code, assuming a version of
+ * pmon is the boot code.
+ *
+ * Copyright 2001 MontaVista Software Inc.
+ * Author: MontaVista Software, Inc.
+ * ahennessy@mvista.com
+ *
+ * Based on arch/mips/au1000/common/prom.c
+ *
+ * This file was derived from Carsten Langgaard's
+ * arch/mips/mips-boards/xx files.
+ *
+ * Carsten Langgaard, carstenl@mips.com
+ * Copyright (C) 1999,2000 MIPS Technologies, Inc. All rights reserved.
+ *
+ * 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 SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
+ * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * 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.,
+ * 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/string.h>
+
+#include <asm/bootinfo.h>
+
+extern int prom_argc;
+extern char **prom_argv, **prom_envp;
+
+typedef struct
+{
+ char *name;
+/* char *val; */
+}t_env_var;
+
+
+char * __init prom_getcmdline(void)
+{
+ return &(arcs_cmdline[0]);
+}
+
+void __init prom_init_cmdline(void)
+{
+ char *cp;
+ int actr;
+
+ actr = 1; /* Always ignore argv[0] */
+
+ cp = &(arcs_cmdline[0]);
+ while(actr < prom_argc) {
+ strcpy(cp, prom_argv[actr]);
+ cp += strlen(prom_argv[actr]);
+ *cp++ = ' ';
+ actr++;
+ }
+ if (cp != &(arcs_cmdline[0])) /* get rid of trailing space */
+ --cp;
+ *cp = '\0';
+}
+
+unsigned long __init prom_free_prom_memory(void)
+{
+ return 0;
+}
diff --git a/arch/mips/jmr3927/common/puts.c b/arch/mips/jmr3927/common/puts.c
new file mode 100644
index 00000000000..1c1cad9cd07
--- /dev/null
+++ b/arch/mips/jmr3927/common/puts.c
@@ -0,0 +1,168 @@
+/*
+ *
+ * BRIEF MODULE DESCRIPTION
+ * Low level uart routines to directly access a TX[34]927 SIO.
+ *
+ * Copyright 2001 MontaVista Software Inc.
+ * Author: MontaVista Software, Inc.
+ * ahennessy@mvista.com or source@mvista.com
+ *
+ * Copyright (C) 2000-2001 Toshiba Corporation
+ *
+ * Based on arch/mips/au1000/common/puts.c
+ *
+ * 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 SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
+ * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * 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.,
+ * 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <linux/types.h>
+#include <asm/jmr3927/txx927.h>
+#include <asm/jmr3927/tx3927.h>
+#include <asm/jmr3927/jmr3927.h>
+
+#define TIMEOUT 0xffffff
+#define SLOW_DOWN
+
+static const char digits[16] = "0123456789abcdef";
+
+#ifdef SLOW_DOWN
+#define slow_down() { int k; for (k=0; k<10000; k++); }
+#else
+#define slow_down()
+#endif
+
+void
+putch(const unsigned char c)
+{
+ int i = 0;
+
+ do {
+ slow_down();
+ i++;
+ if (i>TIMEOUT) {
+ break;
+ }
+ } while (!(tx3927_sioptr(1)->cisr & TXx927_SICISR_TXALS));
+ tx3927_sioptr(1)->tfifo = c;
+ return;
+}
+
+unsigned char getch(void)
+{
+ int i = 0;
+ int dicr;
+ char c;
+
+ /* diable RX int. */
+ dicr = tx3927_sioptr(1)->dicr;
+ tx3927_sioptr(1)->dicr = 0;
+
+ do {
+ slow_down();
+ i++;
+ if (i>TIMEOUT) {
+ break;
+ }
+ } while (tx3927_sioptr(1)->disr & TXx927_SIDISR_UVALID)
+ ;
+ c = tx3927_sioptr(1)->rfifo;
+
+ /* clear RX int. status */
+ tx3927_sioptr(1)->disr &= ~TXx927_SIDISR_RDIS;
+ /* enable RX int. */
+ tx3927_sioptr(1)->dicr = dicr;
+
+ return c;
+}
+void
+do_jmr3927_led_set(char n)
+{
+ /* and with current leds */
+ jmr3927_led_and_set(n);
+}
+
+void
+puts(unsigned char *cp)
+{
+ int i = 0;
+
+ while (*cp) {
+ do {
+ slow_down();
+ i++;
+ if (i>TIMEOUT) {
+ break;
+ }
+ } while (!(tx3927_sioptr(1)->cisr & TXx927_SICISR_TXALS));
+ tx3927_sioptr(1)->tfifo = *cp++;
+ }
+ putch('\r');
+ putch('\n');
+}
+
+void
+fputs(unsigned char *cp)
+{
+ int i = 0;
+
+ while (*cp) {
+ do {
+ slow_down();
+ i++;
+ if (i>TIMEOUT) {
+ break;
+ }
+ } while (!(tx3927_sioptr(1)->cisr & TXx927_SICISR_TXALS));
+ tx3927_sioptr(1)->tfifo = *cp++;
+ }
+}
+
+
+void
+put64(uint64_t ul)
+{
+ int cnt;
+ unsigned ch;
+
+ cnt = 16; /* 16 nibbles in a 64 bit long */
+ putch('0');
+ putch('x');
+ do {
+ cnt--;
+ ch = (unsigned char)(ul >> cnt * 4) & 0x0F;
+ putch(digits[ch]);
+ } while (cnt > 0);
+}
+
+void
+put32(unsigned u)
+{
+ int cnt;
+ unsigned ch;
+
+ cnt = 8; /* 8 nibbles in a 32 bit long */
+ putch('0');
+ putch('x');
+ do {
+ cnt--;
+ ch = (unsigned char)(u >> cnt * 4) & 0x0F;
+ putch(digits[ch]);
+ } while (cnt > 0);
+}
diff --git a/arch/mips/jmr3927/common/rtc_ds1742.c b/arch/mips/jmr3927/common/rtc_ds1742.c
new file mode 100644
index 00000000000..1ae4318e135
--- /dev/null
+++ b/arch/mips/jmr3927/common/rtc_ds1742.c
@@ -0,0 +1,165 @@
+/*
+ * Copyright 2001 MontaVista Software Inc.
+ * Author: MontaVista Software, Inc.
+ * ahennessy@mvista.com
+ *
+ * arch/mips/jmr3927/common/rtc_ds1742.c
+ * Based on arch/mips/ddb5xxx/common/rtc_ds1386.c
+ * low-level RTC hookups for s for Dallas 1742 chip.
+ *
+ * Copyright (C) 2000-2001 Toshiba Corporation
+ *
+ * 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 SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
+ * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * 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.,
+ * 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+
+/*
+ * This file exports a function, rtc_ds1386_init(), which expects an
+ * uncached base address as the argument. It will set the two function
+ * pointers expected by the MIPS generic timer code.
+ */
+
+#include <linux/bcd.h>
+#include <linux/types.h>
+#include <linux/time.h>
+#include <linux/rtc.h>
+
+#include <asm/time.h>
+#include <asm/addrspace.h>
+
+#include <asm/jmr3927/ds1742rtc.h>
+#include <asm/debug.h>
+
+#define EPOCH 2000
+
+static unsigned long rtc_base;
+
+static unsigned long
+rtc_ds1742_get_time(void)
+{
+ unsigned int year, month, day, hour, minute, second;
+ unsigned int century;
+
+ CMOS_WRITE(RTC_READ, RTC_CONTROL);
+ second = BCD2BIN(CMOS_READ(RTC_SECONDS) & RTC_SECONDS_MASK);
+ minute = BCD2BIN(CMOS_READ(RTC_MINUTES));
+ hour = BCD2BIN(CMOS_READ(RTC_HOURS));
+ day = BCD2BIN(CMOS_READ(RTC_DATE));
+ month = BCD2BIN(CMOS_READ(RTC_MONTH));
+ year = BCD2BIN(CMOS_READ(RTC_YEAR));
+ century = BCD2BIN(CMOS_READ(RTC_CENTURY) & RTC_CENTURY_MASK);
+ CMOS_WRITE(0, RTC_CONTROL);
+
+ year += century * 100;
+
+ return mktime(year, month, day, hour, minute, second);
+}
+extern void to_tm(unsigned long tim, struct rtc_time * tm);
+
+static int
+rtc_ds1742_set_time(unsigned long t)
+{
+ struct rtc_time tm;
+ u8 year, month, day, hour, minute, second;
+ u8 cmos_year, cmos_month, cmos_day, cmos_hour, cmos_minute, cmos_second;
+ int cmos_century;
+
+ CMOS_WRITE(RTC_READ, RTC_CONTROL);
+ cmos_second = (u8)(CMOS_READ(RTC_SECONDS) & RTC_SECONDS_MASK);
+ cmos_minute = (u8)CMOS_READ(RTC_MINUTES);
+ cmos_hour = (u8)CMOS_READ(RTC_HOURS);
+ cmos_day = (u8)CMOS_READ(RTC_DATE);
+ cmos_month = (u8)CMOS_READ(RTC_MONTH);
+ cmos_year = (u8)CMOS_READ(RTC_YEAR);
+ cmos_century = CMOS_READ(RTC_CENTURY) & RTC_CENTURY_MASK;
+
+ CMOS_WRITE(RTC_WRITE, RTC_CONTROL);
+
+ /* convert */
+ to_tm(t, &tm);
+
+ /* check each field one by one */
+ year = BIN2BCD(tm.tm_year - EPOCH);
+ if (year != cmos_year) {
+ CMOS_WRITE(year,RTC_YEAR);
+ }
+
+ month = BIN2BCD(tm.tm_mon);
+ if (month != (cmos_month & 0x1f)) {
+ CMOS_WRITE((month & 0x1f) | (cmos_month & ~0x1f),RTC_MONTH);
+ }
+
+ day = BIN2BCD(tm.tm_mday);
+ if (day != cmos_day) {
+
+ CMOS_WRITE(day, RTC_DATE);
+ }
+
+ if (cmos_hour & 0x40) {
+ /* 12 hour format */
+ hour = 0x40;
+ if (tm.tm_hour > 12) {
+ hour |= 0x20 | (BIN2BCD(hour-12) & 0x1f);
+ } else {
+ hour |= BIN2BCD(tm.tm_hour);
+ }
+ } else {
+ /* 24 hour format */
+ hour = BIN2BCD(tm.tm_hour) & 0x3f;
+ }
+ if (hour != cmos_hour) CMOS_WRITE(hour, RTC_HOURS);
+
+ minute = BIN2BCD(tm.tm_min);
+ if (minute != cmos_minute) {
+ CMOS_WRITE(minute, RTC_MINUTES);
+ }
+
+ second = BIN2BCD(tm.tm_sec);
+ if (second != cmos_second) {
+ CMOS_WRITE(second & RTC_SECONDS_MASK,RTC_SECONDS);
+ }
+
+ /* RTC_CENTURY and RTC_CONTROL share same address... */
+ CMOS_WRITE(cmos_century, RTC_CONTROL);
+
+ return 0;
+}
+
+void
+rtc_ds1742_init(unsigned long base)
+{
+ u8 cmos_second;
+
+ /* remember the base */
+ rtc_base = base;
+ db_assert((rtc_base & 0xe0000000) == KSEG1);
+
+ /* set the function pointers */
+ rtc_get_time = rtc_ds1742_get_time;
+ rtc_set_time = rtc_ds1742_set_time;
+
+ /* clear oscillator stop bit */
+ CMOS_WRITE(RTC_READ, RTC_CONTROL);
+ cmos_second = (u8)(CMOS_READ(RTC_SECONDS) & RTC_SECONDS_MASK);
+ CMOS_WRITE(RTC_WRITE, RTC_CONTROL);
+ CMOS_WRITE(cmos_second, RTC_SECONDS); /* clear msb */
+ CMOS_WRITE(0, RTC_CONTROL);
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-01 05:02:35 +0000