[MIPS] TXx9: Reorganize code

Move arch/mips/{jmr3927,tx4927,tx4938} into arch/mips/txx9/ tree.
This will help more code sharing and maintainance.

Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

6 files changed, 887 insertions, 0 deletions

diff --git a/arch/mips/txx9/jmr3927/Makefile b/arch/mips/txx9/jmr3927/Makefile
new file mode 100644
index 000000000000..5f83ea375225
--- /dev/null
+++ b/arch/mips/txx9/jmr3927/Makefile
@@ -0,0 +1,8 @@
+#
+# Makefile for TOSHIBA JMR-TX3927 board
+#
+
+obj-y	+= prom.o init.o irq.o setup.o
+obj-$(CONFIG_KGDB)	+= kgdb_io.o
+
+EXTRA_CFLAGS += -Werror
diff --git a/arch/mips/txx9/jmr3927/init.c b/arch/mips/txx9/jmr3927/init.c
new file mode 100644
index 000000000000..1bbb5343baf4
--- /dev/null
+++ b/arch/mips/txx9/jmr3927/init.c
@@ -0,0 +1,57 @@
+/*
+ * Copyright 2001 MontaVista Software Inc.
+ * Author: MontaVista Software, Inc.
+ *              ahennessy@mvista.com
+ *
+ * arch/mips/jmr3927/common/init.c
+ *
+ * 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.
+ */
+#include <linux/init.h>
+#include <asm/bootinfo.h>
+#include <asm/txx9/jmr3927.h>
+
+extern void  __init prom_init_cmdline(void);
+
+const char *get_system_type(void)
+{
+	return "Toshiba"
+#ifdef CONFIG_TOSHIBA_JMR3927
+	       " JMR_TX3927"
+#endif
+	;
+}
+
+extern void puts(const char *cp);
+
+void __init prom_init(void)
+{
+#ifdef CONFIG_TOSHIBA_JMR3927
+	/* CCFG */
+	if ((tx3927_ccfgptr->ccfg & TX3927_CCFG_TLBOFF) == 0)
+		puts("Warning: TX3927 TLB off\n");
+#endif
+
+	prom_init_cmdline();
+	add_memory_region(0, JMR3927_SDRAM_SIZE, BOOT_MEM_RAM);
+}
diff --git a/arch/mips/txx9/jmr3927/irq.c b/arch/mips/txx9/jmr3927/irq.c
new file mode 100644
index 000000000000..85e1daf15c7b
--- /dev/null
+++ b/arch/mips/txx9/jmr3927/irq.c
@@ -0,0 +1,174 @@
+/*
+ * Copyright 2001 MontaVista Software Inc.
+ * Author: MontaVista Software, Inc.
+ *              ahennessy@mvista.com
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * 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.
+ */
+#include <linux/init.h>
+#include <linux/sched.h>
+#include <linux/types.h>
+#include <linux/interrupt.h>
+
+#include <asm/io.h>
+#include <asm/mipsregs.h>
+#include <asm/system.h>
+
+#include <asm/processor.h>
+#include <asm/txx9/jmr3927.h>
+
+#if JMR3927_IRQ_END > NR_IRQS
+#error JMR3927_IRQ_END > NR_IRQS
+#endif
+
+static unsigned char irc_level[TX3927_NUM_IR] = {
+	5, 5, 5, 5, 5, 5,	/* INT[5:0] */
+	7, 7,			/* SIO */
+	5, 5, 5, 0, 0,		/* DMA, PIO, PCI */
+	6, 6, 6			/* TMR */
+};
+
+/*
+ * CP0_STATUS is a thread's resource (saved/restored on context switch).
+ * So disable_irq/enable_irq MUST handle IOC/IRC registers.
+ */
+static void mask_irq_ioc(unsigned int irq)
+{
+	/* 0: mask */
+	unsigned int irq_nr = irq - JMR3927_IRQ_IOC;
+	unsigned char imask = jmr3927_ioc_reg_in(JMR3927_IOC_INTM_ADDR);
+	unsigned int bit = 1 << irq_nr;
+	jmr3927_ioc_reg_out(imask & ~bit, JMR3927_IOC_INTM_ADDR);
+	/* flush write buffer */
+	(void)jmr3927_ioc_reg_in(JMR3927_IOC_REV_ADDR);
+}
+static void unmask_irq_ioc(unsigned int irq)
+{
+	/* 0: mask */
+	unsigned int irq_nr = irq - JMR3927_IRQ_IOC;
+	unsigned char imask = jmr3927_ioc_reg_in(JMR3927_IOC_INTM_ADDR);
+	unsigned int bit = 1 << irq_nr;
+	jmr3927_ioc_reg_out(imask | bit, JMR3927_IOC_INTM_ADDR);
+	/* flush write buffer */
+	(void)jmr3927_ioc_reg_in(JMR3927_IOC_REV_ADDR);
+}
+
+asmlinkage void plat_irq_dispatch(void)
+{
+	unsigned long cp0_cause = read_c0_cause();
+	int irq;
+
+	if ((cp0_cause & CAUSEF_IP7) == 0)
+		return;
+	irq = (cp0_cause >> CAUSEB_IP2) & 0x0f;
+
+	do_IRQ(irq + JMR3927_IRQ_IRC);
+}
+
+static irqreturn_t jmr3927_ioc_interrupt(int irq, void *dev_id)
+{
+	unsigned char istat = jmr3927_ioc_reg_in(JMR3927_IOC_INTS2_ADDR);
+	int i;
+
+	for (i = 0; i < JMR3927_NR_IRQ_IOC; i++) {
+		if (istat & (1 << i)) {
+			irq = JMR3927_IRQ_IOC + i;
+			do_IRQ(irq);
+		}
+	}
+	return IRQ_HANDLED;
+}
+
+static struct irqaction ioc_action = {
+	.handler = jmr3927_ioc_interrupt,
+	.mask = CPU_MASK_NONE,
+	.name = "IOC",
+};
+
+static irqreturn_t jmr3927_pcierr_interrupt(int irq, void *dev_id)
+{
+	printk(KERN_WARNING "PCI error interrupt (irq 0x%x).\n", irq);
+	printk(KERN_WARNING "pcistat:%02x, lbstat:%04lx\n",
+	       tx3927_pcicptr->pcistat, tx3927_pcicptr->lbstat);
+
+	return IRQ_HANDLED;
+}
+static struct irqaction pcierr_action = {
+	.handler = jmr3927_pcierr_interrupt,
+	.mask = CPU_MASK_NONE,
+	.name = "PCI error",
+};
+
+static void __init jmr3927_irq_init(void);
+
+void __init arch_init_irq(void)
+{
+	/* Now, interrupt control disabled, */
+	/* all IRC interrupts are masked, */
+	/* all IRC interrupt mode are Low Active. */
+
+	/* mask all IOC interrupts */
+	jmr3927_ioc_reg_out(0, JMR3927_IOC_INTM_ADDR);
+	/* setup IOC interrupt mode (SOFT:High Active, Others:Low Active) */
+	jmr3927_ioc_reg_out(JMR3927_IOC_INTF_SOFT, JMR3927_IOC_INTP_ADDR);
+
+	/* clear PCI Soft interrupts */
+	jmr3927_ioc_reg_out(0, JMR3927_IOC_INTS1_ADDR);
+	/* clear PCI Reset interrupts */
+	jmr3927_ioc_reg_out(0, JMR3927_IOC_RESET_ADDR);
+
+	jmr3927_irq_init();
+
+	/* setup IOC interrupt 1 (PCI, MODEM) */
+	setup_irq(JMR3927_IRQ_IOCINT, &ioc_action);
+
+#ifdef CONFIG_PCI
+	setup_irq(JMR3927_IRQ_IRC_PCI, &pcierr_action);
+#endif
+
+	/* enable all CPU interrupt bits. */
+	set_c0_status(ST0_IM);	/* IE bit is still 0. */
+}
+
+static struct irq_chip jmr3927_irq_ioc = {
+	.name = "jmr3927_ioc",
+	.ack = mask_irq_ioc,
+	.mask = mask_irq_ioc,
+	.mask_ack = mask_irq_ioc,
+	.unmask = unmask_irq_ioc,
+};
+
+static void __init jmr3927_irq_init(void)
+{
+	u32 i;
+
+	txx9_irq_init(TX3927_IRC_REG);
+	for (i = 0; i < TXx9_MAX_IR; i++)
+		txx9_irq_set_pri(i, irc_level[i]);
+	for (i = JMR3927_IRQ_IOC; i < JMR3927_IRQ_IOC + JMR3927_NR_IRQ_IOC; i++)
+		set_irq_chip_and_handler(i, &jmr3927_irq_ioc, handle_level_irq);
+}
diff --git a/arch/mips/txx9/jmr3927/kgdb_io.c b/arch/mips/txx9/jmr3927/kgdb_io.c
new file mode 100644
index 000000000000..5bd757e56f79
--- /dev/null
+++ b/arch/mips/txx9/jmr3927/kgdb_io.c
@@ -0,0 +1,105 @@
+/*
+ * 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
+ *
+ * Based on arch/mips/ddb5xxx/ddb5477/kgdb_io.c
+ *
+ * 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.
+ */
+
+#include <asm/txx9/jmr3927.h>
+
+#define TIMEOUT       0xffffff
+
+static int remoteDebugInitialized = 0;
+static void debugInit(int baud);
+
+int putDebugChar(unsigned char c)
+{
+        int i = 0;
+
+	if (!remoteDebugInitialized) {
+		remoteDebugInitialized = 1;
+		debugInit(38400);
+	}
+
+        do {
+            slow_down();
+            i++;
+            if (i>TIMEOUT) {
+                break;
+            }
+        } while (!(tx3927_sioptr(0)->cisr & TXx927_SICISR_TXALS));
+	tx3927_sioptr(0)->tfifo = c;
+
+	return 1;
+}
+
+unsigned char getDebugChar(void)
+{
+        int i = 0;
+	int dicr;
+	char c;
+
+	if (!remoteDebugInitialized) {
+		remoteDebugInitialized = 1;
+		debugInit(38400);
+	}
+
+	/* diable RX int. */
+	dicr = tx3927_sioptr(0)->dicr;
+	tx3927_sioptr(0)->dicr = 0;
+
+        do {
+            slow_down();
+            i++;
+            if (i>TIMEOUT) {
+                break;
+            }
+        } while (tx3927_sioptr(0)->disr & TXx927_SIDISR_UVALID)
+		;
+	c = tx3927_sioptr(0)->rfifo;
+
+	/* clear RX int. status */
+	tx3927_sioptr(0)->disr &= ~TXx927_SIDISR_RDIS;
+	/* enable RX int. */
+	tx3927_sioptr(0)->dicr = dicr;
+
+	return c;
+}
+
+static void debugInit(int baud)
+{
+	tx3927_sioptr(0)->lcr = 0x020;
+	tx3927_sioptr(0)->dicr = 0;
+	tx3927_sioptr(0)->disr = 0x4100;
+	tx3927_sioptr(0)->cisr = 0x014;
+	tx3927_sioptr(0)->fcr = 0;
+	tx3927_sioptr(0)->flcr = 0x02;
+	tx3927_sioptr(0)->bgr = ((JMR3927_BASE_BAUD + baud / 2) / baud) |
+		TXx927_SIBGR_BCLK_T0;
+}
diff --git a/arch/mips/txx9/jmr3927/prom.c b/arch/mips/txx9/jmr3927/prom.c
new file mode 100644
index 000000000000..8bc1049b622e
--- /dev/null
+++ b/arch/mips/txx9/jmr3927/prom.c
@@ -0,0 +1,98 @@
+/*
+ * 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>
+#include <asm/txx9/tx3927.h>
+
+char * __init prom_getcmdline(void)
+{
+	return &(arcs_cmdline[0]);
+}
+
+void  __init prom_init_cmdline(void)
+{
+	char *cp;
+	int actr;
+	int prom_argc = fw_arg0;
+	char **prom_argv = (char **) fw_arg1;
+
+	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';
+}
+
+void __init prom_free_prom_memory(void)
+{
+}
+
+#define TIMEOUT       0xffffff
+
+void
+prom_putchar(char c)
+{
+        int i = 0;
+
+        do {
+            i++;
+            if (i>TIMEOUT)
+                break;
+        } while (!(tx3927_sioptr(1)->cisr & TXx927_SICISR_TXALS));
+	tx3927_sioptr(1)->tfifo = c;
+	return;
+}
+
+void
+puts(const char *cp)
+{
+    while (*cp)
+	prom_putchar(*cp++);
+    prom_putchar('\r');
+    prom_putchar('\n');
+}
diff --git a/arch/mips/txx9/jmr3927/setup.c b/arch/mips/txx9/jmr3927/setup.c
new file mode 100644
index 000000000000..41e0f3b3af2c
--- /dev/null
+++ b/arch/mips/txx9/jmr3927/setup.c
@@ -0,0 +1,445 @@
+/*
+ *  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.
+ *
+ * Copyright 2001 MontaVista Software Inc.
+ * Author: MontaVista Software, Inc.
+ *              ahennessy@mvista.com
+ *
+ * Copyright (C) 2000-2001 Toshiba Corporation
+ * Copyright (C) 2007 Ralf Baechle (ralf@linux-mips.org)
+ */
+
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/pci.h>
+#include <linux/ioport.h>
+#include <linux/delay.h>
+#include <linux/pm.h>
+#include <linux/platform_device.h>
+#include <linux/clk.h>
+#include <linux/gpio.h>
+#ifdef CONFIG_SERIAL_TXX9
+#include <linux/serial_core.h>
+#endif
+
+#include <asm/txx9tmr.h>
+#include <asm/txx9pio.h>
+#include <asm/reboot.h>
+#include <asm/txx9/jmr3927.h>
+#include <asm/mipsregs.h>
+
+extern void puts(const char *cp);
+
+/* don't enable - see errata */
+static int jmr3927_ccfg_toeon;
+
+static inline void do_reset(void)
+{
+#if 1	/* Resetting PCI bus */
+	jmr3927_ioc_reg_out(0, JMR3927_IOC_RESET_ADDR);
+	jmr3927_ioc_reg_out(JMR3927_IOC_RESET_PCI, JMR3927_IOC_RESET_ADDR);
+	(void)jmr3927_ioc_reg_in(JMR3927_IOC_RESET_ADDR);	/* flush WB */
+	mdelay(1);
+	jmr3927_ioc_reg_out(0, JMR3927_IOC_RESET_ADDR);
+#endif
+	jmr3927_ioc_reg_out(JMR3927_IOC_RESET_CPU, JMR3927_IOC_RESET_ADDR);
+}
+
+static void jmr3927_machine_restart(char *command)
+{
+	local_irq_disable();
+	puts("Rebooting...");
+	do_reset();
+}
+
+static void jmr3927_machine_halt(void)
+{
+	puts("JMR-TX3927 halted.\n");
+	while (1);
+}
+
+static void jmr3927_machine_power_off(void)
+{
+	puts("JMR-TX3927 halted. Please turn off the power.\n");
+	while (1);
+}
+
+void __init plat_time_init(void)
+{
+	txx9_clockevent_init(TX3927_TMR_REG(0),
+			     TXX9_IRQ_BASE + JMR3927_IRQ_IRC_TMR(0),
+			     JMR3927_IMCLK);
+	txx9_clocksource_init(TX3927_TMR_REG(1), JMR3927_IMCLK);
+}
+
+#define DO_WRITE_THROUGH
+#define DO_ENABLE_CACHE
+
+extern char * __init prom_getcmdline(void);
+static void jmr3927_board_init(void);
+extern struct resource pci_io_resource;
+extern struct resource pci_mem_resource;
+
+void __init plat_mem_setup(void)
+{
+	char *argptr;
+
+	set_io_port_base(JMR3927_PORT_BASE + JMR3927_PCIIO);
+
+	_machine_restart = jmr3927_machine_restart;
+	_machine_halt = jmr3927_machine_halt;
+	pm_power_off = jmr3927_machine_power_off;
+
+	/*
+	 * IO/MEM resources.
+	 */
+	ioport_resource.start = pci_io_resource.start;
+	ioport_resource.end = pci_io_resource.end;
+	iomem_resource.start = 0;
+	iomem_resource.end = 0xffffffff;
+
+	/* Reboot on panic */
+	panic_timeout = 180;
+
+	/* cache setup */
+	{
+		unsigned int conf;
+#ifdef DO_ENABLE_CACHE
+		int mips_ic_disable = 0, mips_dc_disable = 0;
+#else
+		int mips_ic_disable = 1, mips_dc_disable = 1;
+#endif
+#ifdef DO_WRITE_THROUGH
+		int mips_config_cwfon = 0;
+		int mips_config_wbon = 0;
+#else
+		int mips_config_cwfon = 1;
+		int mips_config_wbon = 1;
+#endif
+
+		conf = read_c0_conf();
+		conf &= ~(TX39_CONF_ICE | TX39_CONF_DCE | TX39_CONF_WBON | TX39_CONF_CWFON);
+		conf |= mips_ic_disable ? 0 : TX39_CONF_ICE;
+		conf |= mips_dc_disable ? 0 : TX39_CONF_DCE;
+		conf |= mips_config_wbon ? TX39_CONF_WBON : 0;
+		conf |= mips_config_cwfon ? TX39_CONF_CWFON : 0;
+
+		write_c0_conf(conf);
+		write_c0_cache(0);
+	}
+
+	/* initialize board */
+	jmr3927_board_init();
+
+	argptr = prom_getcmdline();
+
+	if ((argptr = strstr(argptr, "toeon")) != NULL)
+		jmr3927_ccfg_toeon = 1;
+	argptr = prom_getcmdline();
+	if ((argptr = strstr(argptr, "ip=")) == NULL) {
+		argptr = prom_getcmdline();
+		strcat(argptr, " ip=bootp");
+	}
+
+#ifdef CONFIG_SERIAL_TXX9
+	{
+		extern int early_serial_txx9_setup(struct uart_port *port);
+		int i;
+		struct uart_port req;
+		for(i = 0; i < 2; i++) {
+			memset(&req, 0, sizeof(req));
+			req.line = i;
+			req.iotype = UPIO_MEM;
+			req.membase = (unsigned char __iomem *)TX3927_SIO_REG(i);
+			req.mapbase = TX3927_SIO_REG(i);
+			req.irq = i == 0 ?
+				JMR3927_IRQ_IRC_SIO0 : JMR3927_IRQ_IRC_SIO1;
+			if (i == 0)
+				req.flags |= UPF_BUGGY_UART /*HAVE_CTS_LINE*/;
+			req.uartclk = JMR3927_IMCLK;
+			early_serial_txx9_setup(&req);
+		}
+	}
+#ifdef CONFIG_SERIAL_TXX9_CONSOLE
+	argptr = prom_getcmdline();
+	if ((argptr = strstr(argptr, "console=")) == NULL) {
+		argptr = prom_getcmdline();
+		strcat(argptr, " console=ttyS1,115200");
+	}
+#endif
+#endif
+}
+
+static void tx3927_setup(void);
+
+static void __init jmr3927_board_init(void)
+{
+	tx3927_setup();
+
+	/* SIO0 DTR on */
+	jmr3927_ioc_reg_out(0, JMR3927_IOC_DTR_ADDR);
+
+	jmr3927_led_set(0);
+
+	printk("JMR-TX3927 (Rev %d) --- IOC(Rev %d) DIPSW:%d,%d,%d,%d\n",
+	       jmr3927_ioc_reg_in(JMR3927_IOC_BREV_ADDR) & JMR3927_REV_MASK,
+	       jmr3927_ioc_reg_in(JMR3927_IOC_REV_ADDR) & JMR3927_REV_MASK,
+	       jmr3927_dipsw1(), jmr3927_dipsw2(),
+	       jmr3927_dipsw3(), jmr3927_dipsw4());
+}
+
+static void __init tx3927_setup(void)
+{
+	int i;
+#ifdef CONFIG_PCI
+	unsigned long mips_pci_io_base = JMR3927_PCIIO;
+	unsigned long mips_pci_io_size = JMR3927_PCIIO_SIZE;
+	unsigned long mips_pci_mem_base = JMR3927_PCIMEM;
+	unsigned long mips_pci_mem_size = JMR3927_PCIMEM_SIZE;
+	/* for legacy I/O, PCI I/O PCI Bus address must be 0 */
+	unsigned long mips_pci_io_pciaddr = 0;
+#endif
+
+	/* SDRAMC are configured by PROM */
+
+	/* ROMC */
+	tx3927_romcptr->cr[1] = JMR3927_ROMCE1 | 0x00030048;
+	tx3927_romcptr->cr[2] = JMR3927_ROMCE2 | 0x000064c8;
+	tx3927_romcptr->cr[3] = JMR3927_ROMCE3 | 0x0003f698;
+	tx3927_romcptr->cr[5] = JMR3927_ROMCE5 | 0x0000f218;
+
+	/* CCFG */
+	/* enable Timeout BusError */
+	if (jmr3927_ccfg_toeon)
+		tx3927_ccfgptr->ccfg |= TX3927_CCFG_TOE;
+
+	/* clear BusErrorOnWrite flag */
+	tx3927_ccfgptr->ccfg &= ~TX3927_CCFG_BEOW;
+	/* Disable PCI snoop */
+	tx3927_ccfgptr->ccfg &= ~TX3927_CCFG_PSNP;
+	/* do reset on watchdog */
+	tx3927_ccfgptr->ccfg |= TX3927_CCFG_WR;
+
+#ifdef DO_WRITE_THROUGH
+	/* Enable PCI SNOOP - with write through only */
+	tx3927_ccfgptr->ccfg |= TX3927_CCFG_PSNP;
+#endif
+
+	/* Pin selection */
+	tx3927_ccfgptr->pcfg &= ~TX3927_PCFG_SELALL;
+	tx3927_ccfgptr->pcfg |=
+		TX3927_PCFG_SELSIOC(0) | TX3927_PCFG_SELSIO_ALL |
+		(TX3927_PCFG_SELDMA_ALL & ~TX3927_PCFG_SELDMA(1));
+
+	printk("TX3927 -- CRIR:%08lx CCFG:%08lx PCFG:%08lx\n",
+	       tx3927_ccfgptr->crir,
+	       tx3927_ccfgptr->ccfg, tx3927_ccfgptr->pcfg);
+
+	/* TMR */
+	for (i = 0; i < TX3927_NR_TMR; i++)
+		txx9_tmr_init(TX3927_TMR_REG(i));
+
+	/* DMA */
+	tx3927_dmaptr->mcr = 0;
+	for (i = 0; i < ARRAY_SIZE(tx3927_dmaptr->ch); i++) {
+		/* reset channel */
+		tx3927_dmaptr->ch[i].ccr = TX3927_DMA_CCR_CHRST;
+		tx3927_dmaptr->ch[i].ccr = 0;
+	}
+	/* enable DMA */
+#ifdef __BIG_ENDIAN
+	tx3927_dmaptr->mcr = TX3927_DMA_MCR_MSTEN;
+#else
+	tx3927_dmaptr->mcr = TX3927_DMA_MCR_MSTEN | TX3927_DMA_MCR_LE;
+#endif
+
+#ifdef CONFIG_PCI
+	/* PCIC */
+	printk("TX3927 PCIC -- DID:%04x VID:%04x RID:%02x Arbiter:",
+	       tx3927_pcicptr->did, tx3927_pcicptr->vid,
+	       tx3927_pcicptr->rid);
+	if (!(tx3927_ccfgptr->ccfg & TX3927_CCFG_PCIXARB)) {
+		printk("External\n");
+		/* XXX */
+	} else {
+		printk("Internal\n");
+
+		/* Reset PCI Bus */
+		jmr3927_ioc_reg_out(0, JMR3927_IOC_RESET_ADDR);
+		udelay(100);
+		jmr3927_ioc_reg_out(JMR3927_IOC_RESET_PCI,
+				    JMR3927_IOC_RESET_ADDR);
+		udelay(100);
+		jmr3927_ioc_reg_out(0, JMR3927_IOC_RESET_ADDR);
+
+
+		/* Disable External PCI Config. Access */
+		tx3927_pcicptr->lbc = TX3927_PCIC_LBC_EPCAD;
+#ifdef __BIG_ENDIAN
+		tx3927_pcicptr->lbc |= TX3927_PCIC_LBC_IBSE |
+			TX3927_PCIC_LBC_TIBSE |
+			TX3927_PCIC_LBC_TMFBSE | TX3927_PCIC_LBC_MSDSE;
+#endif
+		/* LB->PCI mappings */
+		tx3927_pcicptr->iomas = ~(mips_pci_io_size - 1);
+		tx3927_pcicptr->ilbioma = mips_pci_io_base;
+		tx3927_pcicptr->ipbioma = mips_pci_io_pciaddr;
+		tx3927_pcicptr->mmas = ~(mips_pci_mem_size - 1);
+		tx3927_pcicptr->ilbmma = mips_pci_mem_base;
+		tx3927_pcicptr->ipbmma = mips_pci_mem_base;
+		/* PCI->LB mappings */
+		tx3927_pcicptr->iobas = 0xffffffff;
+		tx3927_pcicptr->ioba = 0;
+		tx3927_pcicptr->tlbioma = 0;
+		tx3927_pcicptr->mbas = ~(mips_pci_mem_size - 1);
+		tx3927_pcicptr->mba = 0;
+		tx3927_pcicptr->tlbmma = 0;
+		/* Enable Direct mapping Address Space Decoder */
+		tx3927_pcicptr->lbc |= TX3927_PCIC_LBC_ILMDE | TX3927_PCIC_LBC_ILIDE;
+
+		/* Clear All Local Bus Status */
+		tx3927_pcicptr->lbstat = TX3927_PCIC_LBIM_ALL;
+		/* Enable All Local Bus Interrupts */
+		tx3927_pcicptr->lbim = TX3927_PCIC_LBIM_ALL;
+		/* Clear All PCI Status Error */
+		tx3927_pcicptr->pcistat = TX3927_PCIC_PCISTATIM_ALL;
+		/* Enable All PCI Status Error Interrupts */
+		tx3927_pcicptr->pcistatim = TX3927_PCIC_PCISTATIM_ALL;
+
+		/* PCIC Int => IRC IRQ10 */
+		tx3927_pcicptr->il = TX3927_IR_PCI;
+		/* Target Control (per errata) */
+		tx3927_pcicptr->tc = TX3927_PCIC_TC_OF8E | TX3927_PCIC_TC_IF8E;
+
+		/* Enable Bus Arbiter */
+		tx3927_pcicptr->pbapmc = TX3927_PCIC_PBAPMC_PBAEN;
+
+		tx3927_pcicptr->pcicmd = PCI_COMMAND_MASTER |
+			PCI_COMMAND_MEMORY |
+			PCI_COMMAND_IO |
+			PCI_COMMAND_PARITY | PCI_COMMAND_SERR;
+	}
+#endif /* CONFIG_PCI */
+
+	/* PIO */
+	/* PIO[15:12] connected to LEDs */
+	__raw_writel(0x0000f000, &tx3927_pioptr->dir);
+	__raw_writel(0, &tx3927_pioptr->maskcpu);
+	__raw_writel(0, &tx3927_pioptr->maskext);
+	txx9_gpio_init(TX3927_PIO_REG, 0, 16);
+	gpio_request(11, "dipsw1");
+	gpio_request(10, "dipsw2");
+	{
+		unsigned int conf;
+
+	conf = read_c0_conf();
+               if (!(conf & TX39_CONF_ICE))
+                       printk("TX3927 I-Cache disabled.\n");
+               if (!(conf & TX39_CONF_DCE))
+                       printk("TX3927 D-Cache disabled.\n");
+               else if (!(conf & TX39_CONF_WBON))
+                       printk("TX3927 D-Cache WriteThrough.\n");
+               else if (!(conf & TX39_CONF_CWFON))
+                       printk("TX3927 D-Cache WriteBack.\n");
+               else
+                       printk("TX3927 D-Cache WriteBack (CWF) .\n");
+	}
+}
+
+/* This trick makes rtc-ds1742 driver usable as is. */
+unsigned long __swizzle_addr_b(unsigned long port)
+{
+	if ((port & 0xffff0000) != JMR3927_IOC_NVRAMB_ADDR)
+		return port;
+	port = (port & 0xffff0000) | (port & 0x7fff << 1);
+#ifdef __BIG_ENDIAN
+	return port;
+#else
+	return port | 1;
+#endif
+}
+EXPORT_SYMBOL(__swizzle_addr_b);
+
+static int __init jmr3927_rtc_init(void)
+{
+	static struct resource __initdata res = {
+		.start	= JMR3927_IOC_NVRAMB_ADDR - IO_BASE,
+		.end	= JMR3927_IOC_NVRAMB_ADDR - IO_BASE + 0x800 - 1,
+		.flags	= IORESOURCE_MEM,
+	};
+	struct platform_device *dev;
+	dev = platform_device_register_simple("rtc-ds1742", -1, &res, 1);
+	return IS_ERR(dev) ? PTR_ERR(dev) : 0;
+}
+device_initcall(jmr3927_rtc_init);
+
+/* Watchdog support */
+
+static int __init txx9_wdt_init(unsigned long base)
+{
+	struct resource res = {
+		.start	= base,
+		.end	= base + 0x100 - 1,
+		.flags	= IORESOURCE_MEM,
+	};
+	struct platform_device *dev =
+		platform_device_register_simple("txx9wdt", -1, &res, 1);
+	return IS_ERR(dev) ? PTR_ERR(dev) : 0;
+}
+
+static int __init jmr3927_wdt_init(void)
+{
+	return txx9_wdt_init(TX3927_TMR_REG(2));
+}
+device_initcall(jmr3927_wdt_init);
+
+/* Minimum CLK support */
+
+struct clk *clk_get(struct device *dev, const char *id)
+{
+	if (!strcmp(id, "imbus_clk"))
+		return (struct clk *)JMR3927_IMCLK;
+	return ERR_PTR(-ENOENT);
+}
+EXPORT_SYMBOL(clk_get);
+
+int clk_enable(struct clk *clk)
+{
+	return 0;
+}
+EXPORT_SYMBOL(clk_enable);
+
+void clk_disable(struct clk *clk)
+{
+}
+EXPORT_SYMBOL(clk_disable);
+
+unsigned long clk_get_rate(struct clk *clk)
+{
+	return (unsigned long)clk;
+}
+EXPORT_SYMBOL(clk_get_rate);
+
+void clk_put(struct clk *clk)
+{
+}
+EXPORT_SYMBOL(clk_put);