[MIPS] TXx9: Make single kernel can support multiple boards

Make single kernel can be used on RBTX4927/37/38.  Also make
some SoC-specific code independent from board-specific code.

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

5 files changed, 54 insertions, 150 deletions

diff --git a/arch/mips/txx9/jmr3927/Makefile b/arch/mips/txx9/jmr3927/Makefile
index 5f83ea375225..ba292c945669 100644
--- a/arch/mips/txx9/jmr3927/Makefile
+++ b/arch/mips/txx9/jmr3927/Makefile
@@ -2,7 +2,7 @@
 # Makefile for TOSHIBA JMR-TX3927 board
 #
 
-obj-y	+= prom.o init.o irq.o setup.o
+obj-y	+= prom.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
deleted file mode 100644
index 1bbb5343baf4..000000000000
--- a/arch/mips/txx9/jmr3927/init.c
+++ /dev/null
@@ -1,57 +0,0 @@
-/*
- * 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
index b97d22e15da6..070c9a115e57 100644
--- a/arch/mips/txx9/jmr3927/irq.c
+++ b/arch/mips/txx9/jmr3927/irq.c
@@ -39,6 +39,7 @@
 #include <asm/system.h>
 
 #include <asm/processor.h>
+#include <asm/txx9/generic.h>
 #include <asm/txx9/jmr3927.h>
 
 #if JMR3927_IRQ_END > NR_IRQS
@@ -77,37 +78,30 @@ static void unmask_irq_ioc(unsigned int irq)
 	(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)
+static int jmr3927_ioc_irqroute(void)
 {
 	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);
-		}
+		if (istat & (1 << i))
+			return JMR3927_IRQ_IOC + i;
 	}
-	return IRQ_HANDLED;
+	return -1;
 }
 
-static struct irqaction ioc_action = {
-	.handler = jmr3927_ioc_interrupt,
-	.mask = CPU_MASK_NONE,
-	.name = "IOC",
-};
+static int jmr3927_irq_dispatch(int pending)
+{
+	int irq;
+
+	if ((pending & CAUSEF_IP7) == 0)
+		return -1;
+	irq = (pending >> CAUSEB_IP2) & 0x0f;
+	irq += JMR3927_IRQ_IRC;
+	if (irq == JMR3927_IRQ_IOCINT)
+		irq = jmr3927_ioc_irqroute();
+	return irq;
+}
 
 #ifdef CONFIG_PCI
 static irqreturn_t jmr3927_pcierr_interrupt(int irq, void *dev_id)
@@ -127,8 +121,9 @@ static struct irqaction pcierr_action = {
 
 static void __init jmr3927_irq_init(void);
 
-void __init arch_init_irq(void)
+void __init jmr3927_irq_setup(void)
 {
+	txx9_irq_dispatch = jmr3927_irq_dispatch;
 	/* Now, interrupt control disabled, */
 	/* all IRC interrupts are masked, */
 	/* all IRC interrupt mode are Low Active. */
@@ -146,7 +141,7 @@ void __init arch_init_irq(void)
 	jmr3927_irq_init();
 
 	/* setup IOC interrupt 1 (PCI, MODEM) */
-	setup_irq(JMR3927_IRQ_IOCINT, &ioc_action);
+	set_irq_chained_handler(JMR3927_IRQ_IOCINT, handle_simple_irq);
 
 #ifdef CONFIG_PCI
 	setup_irq(JMR3927_IRQ_IRC_PCI, &pcierr_action);
diff --git a/arch/mips/txx9/jmr3927/prom.c b/arch/mips/txx9/jmr3927/prom.c
index 8bc1049b622e..2cadb423face 100644
--- a/arch/mips/txx9/jmr3927/prom.c
+++ b/arch/mips/txx9/jmr3927/prom.c
@@ -35,42 +35,10 @@
  *  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)
-{
-}
+#include <asm/txx9/generic.h>
+#include <asm/txx9/jmr3927.h>
 
 #define TIMEOUT       0xffffff
 
@@ -96,3 +64,13 @@ puts(const char *cp)
     prom_putchar('\r');
     prom_putchar('\n');
 }
+
+void __init jmr3927_prom_init(void)
+{
+	/* CCFG */
+	if ((tx3927_ccfgptr->ccfg & TX3927_CCFG_TLBOFF) == 0)
+		puts("Warning: TX3927 TLB off\n");
+
+	prom_init_cmdline();
+	add_memory_region(0, JMR3927_SDRAM_SIZE, BOOT_MEM_RAM);
+}
diff --git a/arch/mips/txx9/jmr3927/setup.c b/arch/mips/txx9/jmr3927/setup.c
index baa8c8db9a94..128a4ae3e72e 100644
--- a/arch/mips/txx9/jmr3927/setup.c
+++ b/arch/mips/txx9/jmr3927/setup.c
@@ -34,15 +34,16 @@
 #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/bootinfo.h>
 #include <asm/txx9tmr.h>
 #include <asm/txx9pio.h>
 #include <asm/reboot.h>
+#include <asm/txx9/generic.h>
 #include <asm/txx9/pci.h>
 #include <asm/txx9/jmr3927.h>
 #include <asm/mipsregs.h>
@@ -83,7 +84,7 @@ static void jmr3927_machine_power_off(void)
 	while (1);
 }
 
-void __init plat_time_init(void)
+static void __init jmr3927_time_init(void)
 {
 	txx9_clockevent_init(TX3927_TMR_REG(0),
 			     TXX9_IRQ_BASE + JMR3927_IRQ_IRC_TMR(0),
@@ -97,7 +98,7 @@ void __init plat_time_init(void)
 extern char * __init prom_getcmdline(void);
 static void jmr3927_board_init(void);
 
-void __init plat_mem_setup(void)
+static void __init jmr3927_mem_setup(void)
 {
 	char *argptr;
 
@@ -233,6 +234,8 @@ static void __init tx3927_setup(void)
 {
 	int i;
 
+	txx9_cpu_clock = JMR3927_CORECLK;
+	txx9_gbus_clock = JMR3927_GBUSCLK;
 	/* SDRAMC are configured by PROM */
 
 	/* ROMC */
@@ -336,7 +339,6 @@ static int __init jmr3927_rtc_init(void)
 	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 */
 
@@ -356,36 +358,22 @@ 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)
+static void __init jmr3927_device_init(void)
 {
+	jmr3927_rtc_init();
+	jmr3927_wdt_init();
 }
-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);
+struct txx9_board_vec jmr3927_vec __initdata = {
+	.type = MACH_TOSHIBA_JMR3927,
+	.system = "Toshiba JMR_TX3927",
+	.prom_init = jmr3927_prom_init,
+	.mem_setup = jmr3927_mem_setup,
+	.irq_setup = jmr3927_irq_setup,
+	.time_init = jmr3927_time_init,
+	.device_init = jmr3927_device_init,
+#ifdef CONFIG_PCI
+	.pci_map_irq = jmr3927_pci_map_irq,
+#endif
+};