Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus

* 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus: (80 commits)
  [MIPS] tlbex.c: Cleanup __init usage.
  [MIPS] WRPPMC serial support move to platform device
  [MIPS] R1: Fix hazard barriers to make kernels work on R2 also.
  [MIPS] VPE: reimplement ELF loader.
  [MIPS] cleanup WRPPMC include files
  [MIPS] Add BUG_ON assertion for attempt to run kernel on the wrong CPU type.
  [MIPS] SMP: Use ISO C struct initializer for local structs.
  [MIPS] SMP: Kill useless casts.
  [MIPS] Kill num_online_cpus() loops.
  [MIPS] SMP: Implement smp_call_function_mask().
  [MIPS] Make facility to convert CPU types to strings generally available.
  [MIPS] Convert list of CPU types from #define to enum.
  [MIPS] Optimize get_unaligned / put_unaligned implementations.
  [MIPS] checkfiles: Fix "need space after that ','" errors.
  [MIPS] Fix "no space between function name and open parenthesis" warnings.
  [MIPS] Allow hardwiring of the CPU type to a single type for optimization.
  [MIPS] tlbex: Size optimize code by declaring a few functions inline.
  [MIPS] pg-r4k.c: Dump the generated code
  [MIPS] Cobalt: Remove cobalt_machine_power_off()
  [MIPS] Cobalt: Move reset port definition to arch/mips/cobalt/reset.c
  ...

8 files changed, 135 insertions, 125 deletions

diff --git a/arch/mips/cobalt/Makefile b/arch/mips/cobalt/Makefile
index a043f93f7d0..6b83f4ddc8f 100644
--- a/arch/mips/cobalt/Makefile
+++ b/arch/mips/cobalt/Makefile
@@ -2,7 +2,7 @@
 # Makefile for the Cobalt micro systems family specific parts of the kernel
 #
 
-obj-y := buttons.o irq.o reset.o rtc.o serial.o setup.o
+obj-y := buttons.o irq.o led.o reset.o rtc.o serial.o setup.o
 
 obj-$(CONFIG_PCI)		+= pci.o
 obj-$(CONFIG_EARLY_PRINTK)	+= console.o
diff --git a/arch/mips/cobalt/console.c b/arch/mips/cobalt/console.c
index 0485d51f721..db330e81102 100644
--- a/arch/mips/cobalt/console.c
+++ b/arch/mips/cobalt/console.c
@@ -1,16 +1,15 @@
 /*
  * (C) P. Horton 2006
  */
+#include <linux/io.h>
 #include <linux/serial_reg.h>
 
-#include <asm/addrspace.h>
-
-#include <cobalt.h>
+#define UART_BASE	((void __iomem *)CKSEG1ADDR(0x1c800000))
 
 void prom_putchar(char c)
 {
-	while(!(COBALT_UART[UART_LSR] & UART_LSR_THRE))
+	while (!(readb(UART_BASE + UART_LSR) & UART_LSR_THRE))
 		;
 
-	COBALT_UART[UART_TX] = c;
+	writeb(c, UART_BASE + UART_TX);
 }
diff --git a/arch/mips/cobalt/irq.c b/arch/mips/cobalt/irq.c
index 950ad1e8be4..ac4fb912649 100644
--- a/arch/mips/cobalt/irq.c
+++ b/arch/mips/cobalt/irq.c
@@ -15,102 +15,48 @@
 
 #include <asm/i8259.h>
 #include <asm/irq_cpu.h>
+#include <asm/irq_gt641xx.h>
 #include <asm/gt64120.h>
 
-#include <cobalt.h>
-
-/*
- * We have two types of interrupts that we handle, ones that come in through
- * the CPU interrupt lines, and ones that come in on the via chip. The CPU
- * mappings are:
- *
- *    16   - Software interrupt 0 (unused)	IE_SW0
- *    17   - Software interrupt 1 (unused)	IE_SW1
- *    18   - Galileo chip (timer)		IE_IRQ0
- *    19   - Tulip 0 + NCR SCSI			IE_IRQ1
- *    20   - Tulip 1				IE_IRQ2
- *    21   - 16550 UART				IE_IRQ3
- *    22   - VIA southbridge PIC		IE_IRQ4
- *    23   - unused				IE_IRQ5
- *
- * The VIA chip is a master/slave 8259 setup and has the following interrupts:
- *
- *     8  - RTC
- *     9  - PCI
- *    14  - IDE0
- *    15  - IDE1
- */
-
-static inline void galileo_irq(void)
-{
-	unsigned int mask, pending, devfn;
-
-	mask = GT_READ(GT_INTRMASK_OFS);
-	pending = GT_READ(GT_INTRCAUSE_OFS) & mask;
-
-	if (pending & GT_INTR_T0EXP_MSK) {
-		GT_WRITE(GT_INTRCAUSE_OFS, ~GT_INTR_T0EXP_MSK);
-		do_IRQ(COBALT_GALILEO_IRQ);
-	} else if (pending & GT_INTR_RETRYCTR0_MSK) {
-		devfn = GT_READ(GT_PCI0_CFGADDR_OFS) >> 8;
-		GT_WRITE(GT_INTRCAUSE_OFS, ~GT_INTR_RETRYCTR0_MSK);
-		printk(KERN_WARNING
-		       "Galileo: PCI retry count exceeded (%02x.%u)\n",
-		       PCI_SLOT(devfn), PCI_FUNC(devfn));
-	} else {
-		GT_WRITE(GT_INTRMASK_OFS, mask & ~pending);
-		printk(KERN_WARNING
-		       "Galileo: masking unexpected interrupt %08x\n", pending);
-	}
-}
-
-static inline void via_pic_irq(void)
-{
-	int irq;
-
-	irq = i8259_irq();
-	if (irq >= 0)
-		do_IRQ(irq);
-}
+#include <irq.h>
 
 asmlinkage void plat_irq_dispatch(void)
 {
-	unsigned pending = read_c0_status() & read_c0_cause();
+	unsigned pending = read_c0_status() & read_c0_cause() & ST0_IM;
+	int irq;
 
-	if (pending & CAUSEF_IP2)		/* COBALT_GALILEO_IRQ (18) */
-		galileo_irq();
-	else if (pending & CAUSEF_IP6)		/* COBALT_VIA_IRQ (22) */
-		via_pic_irq();
-	else if (pending & CAUSEF_IP3)		/* COBALT_ETH0_IRQ (19) */
-		do_IRQ(COBALT_CPU_IRQ + 3);
-	else if (pending & CAUSEF_IP4)		/* COBALT_ETH1_IRQ (20) */
-		do_IRQ(COBALT_CPU_IRQ + 4);
-	else if (pending & CAUSEF_IP5)		/* COBALT_SERIAL_IRQ (21) */
-		do_IRQ(COBALT_CPU_IRQ + 5);
-	else if (pending & CAUSEF_IP7)		/* IRQ 23 */
-		do_IRQ(COBALT_CPU_IRQ + 7);
+	if (pending & CAUSEF_IP2)
+		gt641xx_irq_dispatch();
+	else if (pending & CAUSEF_IP6) {
+		irq = i8259_irq();
+		if (irq < 0)
+			spurious_interrupt();
+		else
+			do_IRQ(irq);
+	} else if (pending & CAUSEF_IP3)
+		do_IRQ(MIPS_CPU_IRQ_BASE + 3);
+	else if (pending & CAUSEF_IP4)
+		do_IRQ(MIPS_CPU_IRQ_BASE + 4);
+	else if (pending & CAUSEF_IP5)
+		do_IRQ(MIPS_CPU_IRQ_BASE + 5);
+	else if (pending & CAUSEF_IP7)
+		do_IRQ(MIPS_CPU_IRQ_BASE + 7);
+	else
+		spurious_interrupt();
 }
 
-static struct irqaction irq_via = {
-	no_action, 0, { { 0, } }, "cascade", NULL, NULL
+static struct irqaction cascade = {
+	.handler	= no_action,
+	.mask		= CPU_MASK_NONE,
+	.name		= "cascade",
 };
 
 void __init arch_init_irq(void)
 {
-	/*
-	 * Mask all Galileo interrupts. The Galileo
-	 * handler is set in cobalt_timer_setup()
-	 */
-	GT_WRITE(GT_INTRMASK_OFS, 0);
-
-	init_i8259_irqs();				/*  0 ... 15 */
-	mips_cpu_irq_init();		/* 16 ... 23 */
-
-	/*
-	 * Mask all cpu interrupts
-	 *  (except IE4, we already masked those at VIA level)
-	 */
-	change_c0_status(ST0_IM, IE_IRQ4);
+	mips_cpu_irq_init();
+	gt641xx_irq_init();
+	init_i8259_irqs();
 
-	setup_irq(COBALT_VIA_IRQ, &irq_via);
+	setup_irq(GT641XX_CASCADE_IRQ, &cascade);
+	setup_irq(I8259_CASCADE_IRQ, &cascade);
 }
diff --git a/arch/mips/cobalt/led.c b/arch/mips/cobalt/led.c
new file mode 100644
index 00000000000..1c6ebd468b0
--- /dev/null
+++ b/arch/mips/cobalt/led.c
@@ -0,0 +1,62 @@
+/*
+ *  Registration of Cobalt LED platform device.
+ *
+ *  Copyright (C) 2007  Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
+ *
+ *  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., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+#include <linux/errno.h>
+#include <linux/init.h>
+#include <linux/ioport.h>
+#include <linux/platform_device.h>
+
+#include <cobalt.h>
+
+static struct resource cobalt_led_resource __initdata = {
+	.start	= 0x1c000000,
+	.end	= 0x1c000000,
+	.flags	= IORESOURCE_MEM,
+};
+
+static __init int cobalt_led_add(void)
+{
+	struct platform_device *pdev;
+	int retval;
+
+	if (cobalt_board_id == COBALT_BRD_ID_QUBE1 ||
+	    cobalt_board_id == COBALT_BRD_ID_QUBE2)
+		pdev = platform_device_alloc("cobalt-qube-leds", -1);
+	else
+		pdev = platform_device_alloc("cobalt-raq-leds", -1);
+
+	if (!pdev)
+		return -ENOMEM;
+
+	retval = platform_device_add_resources(pdev, &cobalt_led_resource, 1);
+	if (retval)
+		goto err_free_device;
+
+	retval = platform_device_add(pdev);
+	if (retval)
+		goto err_free_device;
+
+	return 0;
+
+err_free_device:
+	platform_device_put(pdev);
+
+	return retval;
+}
+device_initcall(cobalt_led_add);
diff --git a/arch/mips/cobalt/reset.c b/arch/mips/cobalt/reset.c
index 43cca21fdbc..71eb4ccc4bc 100644
--- a/arch/mips/cobalt/reset.c
+++ b/arch/mips/cobalt/reset.c
@@ -8,36 +8,46 @@
  * Copyright (C) 1995, 1996, 1997 by Ralf Baechle
  * Copyright (C) 2001 by Liam Davies (ldavies@agile.tv)
  */
+#include <linux/init.h>
+#include <linux/io.h>
 #include <linux/jiffies.h>
-
-#include <asm/io.h>
-#include <asm/reboot.h>
+#include <linux/leds.h>
 
 #include <cobalt.h>
 
+#define RESET_PORT	((void __iomem *)CKSEG1ADDR(0x1c000000))
+#define RESET		0x0f
+
+DEFINE_LED_TRIGGER(power_off_led_trigger);
+
+static int __init ledtrig_power_off_init(void)
+{
+	led_trigger_register_simple("power-off", &power_off_led_trigger);
+	return 0;
+}
+device_initcall(ledtrig_power_off_init);
+
 void cobalt_machine_halt(void)
 {
 	int state, last, diff;
 	unsigned long mark;
 
 	/*
-	 * turn off bar on Qube, flash power off LED on RaQ (0.5Hz)
+	 * turn on power off LED on RaQ
 	 *
 	 * restart if ENTER and SELECT are pressed
 	 */
 
 	last = COBALT_KEY_PORT;
 
-	for (state = 0;;) {
-
-		state ^= COBALT_LED_POWER_OFF;
-		COBALT_LED_PORT = state;
+	led_trigger_event(power_off_led_trigger, LED_FULL);
 
+	for (state = 0;;) {
 		diff = COBALT_KEY_PORT ^ last;
 		last ^= diff;
 
 		if((diff & (COBALT_KEY_ENTER | COBALT_KEY_SELECT)) && !(~last & (COBALT_KEY_ENTER | COBALT_KEY_SELECT)))
-			COBALT_LED_PORT = COBALT_LED_RESET;
+			writeb(RESET, RESET_PORT);
 
 		for (mark = jiffies; jiffies - mark < HZ;)
 			;
@@ -46,17 +56,8 @@ void cobalt_machine_halt(void)
 
 void cobalt_machine_restart(char *command)
 {
-	COBALT_LED_PORT = COBALT_LED_RESET;
+	writeb(RESET, RESET_PORT);
 
 	/* we should never get here */
 	cobalt_machine_halt();
 }
-
-/*
- * This triggers the luser mode device driver for the power switch ;-)
- */
-void cobalt_machine_power_off(void)
-{
-	printk("You can switch the machine off now.\n");
-	cobalt_machine_halt();
-}
diff --git a/arch/mips/cobalt/rtc.c b/arch/mips/cobalt/rtc.c
index 284daefc5c5..e70794b8bcb 100644
--- a/arch/mips/cobalt/rtc.c
+++ b/arch/mips/cobalt/rtc.c
@@ -20,6 +20,7 @@
 #include <linux/errno.h>
 #include <linux/init.h>
 #include <linux/ioport.h>
+#include <linux/mc146818rtc.h>
 #include <linux/platform_device.h>
 
 static struct resource cobalt_rtc_resource[] __initdata = {
@@ -29,8 +30,8 @@ static struct resource cobalt_rtc_resource[] __initdata = {
 		.flags	= IORESOURCE_IO,
 	},
 	{
-		.start	= 8,
-		.end	= 8,
+		.start	= RTC_IRQ,
+		.end	= RTC_IRQ,
 		.flags	= IORESOURCE_IRQ,
 	},
 };
diff --git a/arch/mips/cobalt/serial.c b/arch/mips/cobalt/serial.c
index 08e739704cc..53b8d0d6da9 100644
--- a/arch/mips/cobalt/serial.c
+++ b/arch/mips/cobalt/serial.c
@@ -24,6 +24,7 @@
 #include <linux/serial_8250.h>
 
 #include <cobalt.h>
+#include <irq.h>
 
 static struct resource cobalt_uart_resource[] __initdata = {
 	{
@@ -32,15 +33,15 @@ static struct resource cobalt_uart_resource[] __initdata = {
 		.flags	= IORESOURCE_MEM,
 	},
 	{
-		.start	= COBALT_SERIAL_IRQ,
-		.end	= COBALT_SERIAL_IRQ,
+		.start	= SERIAL_IRQ,
+		.end	= SERIAL_IRQ,
 		.flags	= IORESOURCE_IRQ,
 	},
 };
 
 static struct plat_serial8250_port cobalt_serial8250_port[] = {
 	{
-		.irq		= COBALT_SERIAL_IRQ,
+		.irq		= SERIAL_IRQ,
 		.uartclk	= 18432000,
 		.iotype		= UPIO_MEM,
 		.flags		= UPF_IOREMAP | UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,
diff --git a/arch/mips/cobalt/setup.c b/arch/mips/cobalt/setup.c
index 7abe45e7842..d11bb1bc7b6 100644
--- a/arch/mips/cobalt/setup.c
+++ b/arch/mips/cobalt/setup.c
@@ -15,15 +15,16 @@
 
 #include <asm/bootinfo.h>
 #include <asm/time.h>
+#include <asm/i8253.h>
 #include <asm/io.h>
 #include <asm/reboot.h>
 #include <asm/gt64120.h>
 
 #include <cobalt.h>
+#include <irq.h>
 
 extern void cobalt_machine_restart(char *command);
 extern void cobalt_machine_halt(void);
-extern void cobalt_machine_power_off(void);
 
 const char *get_system_type(void)
 {
@@ -45,14 +46,10 @@ void __init plat_timer_setup(struct irqaction *irq)
 	/* Load timer value for HZ (TCLK is 50MHz) */
 	GT_WRITE(GT_TC0_OFS, 50*1000*1000 / HZ);
 
-	/* Enable timer */
+	/* Enable timer0 */
 	GT_WRITE(GT_TC_CONTROL_OFS, GT_TC_CONTROL_ENTC0_MSK | GT_TC_CONTROL_SELTC0_MSK);
 
-	/* Register interrupt */
-	setup_irq(COBALT_GALILEO_IRQ, irq);
-
-	/* Enable interrupt */
-	GT_WRITE(GT_INTRMASK_OFS, GT_INTR_T0EXP_MSK | GT_READ(GT_INTRMASK_OFS));
+	setup_irq(GT641XX_TIMER0_IRQ, irq);
 }
 
 /*
@@ -87,13 +84,18 @@ static struct resource cobalt_reserved_resources[] = {
 	},
 };
 
+void __init plat_time_init(void)
+{
+	setup_pit_timer();
+}
+
 void __init plat_mem_setup(void)
 {
 	int i;
 
 	_machine_restart = cobalt_machine_restart;
 	_machine_halt = cobalt_machine_halt;
-	pm_power_off = cobalt_machine_power_off;
+	pm_power_off = cobalt_machine_halt;
 
 	set_io_port_base(CKSEG1ADDR(GT_DEF_PCI0_IO_BASE));
 
@@ -117,8 +119,6 @@ void __init prom_init(void)
 	unsigned long memsz;
 	char **argv;
 
-	mips_machgroup = MACH_GROUP_COBALT;
-
 	memsz = fw_arg0 & 0x7fff0000;
 	narg = fw_arg0 & 0x0000ffff;