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

…linus

* 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus: (38 commits)
  MIPS: O32: Fix ppoll
  MIPS: Oprofile: Rename cpu_type from godson2 to loongson2
  MIPS: Alchemy: Fix hang with high-frequency edge interrupts
  MIPS: TXx9: Fix spi-baseclk value
  MIPS: bcm63xx: Set the correct BCM3302 CPU name
  MIPS: Loongson 2: Set cpu_has_dc_aliases and cpu_icache_snoops_remote_store
  MIPS: Avoid potential hazard on Context register
  MIPS: Octeon: Use lockless interrupt controller operations when possible.
  MIPS: Octeon: Use write_{un,}lock_irq{restore,save} to set irq affinity
  MIPS: Set S-cache linesize to 64-bytes for MTI's S-cache
  MIPS: SMTC: Avoid queing multiple reschedule IPIs
  MIPS: GCMP: Avoid accessing registers when they are not present
  MIPS: GIC: Random fixes and enhancements.
  MIPS: CMP: Fix memory barriers for correct operation of amon_cpu_start
  MIPS: Fix abs.[sd] and neg.[sd] emulation for NaN operands
  MIPS: SPRAM: Clean up support code a little
  MIPS: 1004K: Enable SPRAM support.
  MIPS: Malta: Enable PCI 2.1 compatibility in PIIX4
  MIPS: Kconfig: Fix duplicate default value for MIPS_L1_CACHE_SHIFT.
  MIPS: MTI: Fix accesses to device registers on MIPS boards
  ...

arch/mips/Kconfig

@@ -1012,9 +1012,9 @@ config BOOT_ELF32
 
 config MIPS_L1_CACHE_SHIFT
 	int
-	default "4" if MACH_DECSTATION || MIKROTIK_RB532
+	default "4" if MACH_DECSTATION || MIKROTIK_RB532 || PMC_MSP4200_EVAL
+	default "6" if MIPS_CPU_SCACHE
 	default "7" if SGI_IP22 || SGI_IP27 || SGI_IP28 || SNI_RM || CPU_CAVIUM_OCTEON
-	default "4" if PMC_MSP4200_EVAL
 	default "5"
 
 config HAVE_STD_PC_SERIAL_PORT

arch/mips/alchemy/common/irq.c

@@ -354,6 +354,28 @@ static void au1x_ic1_ack(unsigned int irq_nr)
 	au_sync();
 }
 
+static void au1x_ic0_maskack(unsigned int irq_nr)
+{
+	unsigned int bit = irq_nr - AU1000_INTC0_INT_BASE;
+
+	au_writel(1 << bit, IC0_WAKECLR);
+	au_writel(1 << bit, IC0_MASKCLR);
+	au_writel(1 << bit, IC0_RISINGCLR);
+	au_writel(1 << bit, IC0_FALLINGCLR);
+	au_sync();
+}
+
+static void au1x_ic1_maskack(unsigned int irq_nr)
+{
+	unsigned int bit = irq_nr - AU1000_INTC1_INT_BASE;
+
+	au_writel(1 << bit, IC1_WAKECLR);
+	au_writel(1 << bit, IC1_MASKCLR);
+	au_writel(1 << bit, IC1_RISINGCLR);
+	au_writel(1 << bit, IC1_FALLINGCLR);
+	au_sync();
+}
+
 static int au1x_ic1_setwake(unsigned int irq, unsigned int on)
 {
 	unsigned int bit = irq - AU1000_INTC1_INT_BASE;
@@ -379,25 +401,21 @@ static int au1x_ic1_setwake(unsigned int irq, unsigned int on)
 /*
  * irq_chips for both ICs; this way the mask handlers can be
  * as short as possible.
- *
- * NOTE: the ->ack() callback is used by the handle_edge_irq
- *	 flowhandler only, the ->mask_ack() one by handle_level_irq,
- *	 so no need for an irq_chip for each type of irq (level/edge).
  */
 static struct irq_chip au1x_ic0_chip = {
 	.name		= "Alchemy-IC0",
-	.ack		= au1x_ic0_ack,		/* edge */
+	.ack		= au1x_ic0_ack,
 	.mask		= au1x_ic0_mask,
-	.mask_ack	= au1x_ic0_mask,	/* level */
+	.mask_ack	= au1x_ic0_maskack,
 	.unmask		= au1x_ic0_unmask,
 	.set_type	= au1x_ic_settype,
 };
 
 static struct irq_chip au1x_ic1_chip = {
 	.name		= "Alchemy-IC1",
-	.ack		= au1x_ic1_ack,		/* edge */
+	.ack		= au1x_ic1_ack,
 	.mask		= au1x_ic1_mask,
-	.mask_ack	= au1x_ic1_mask,	/* level */
+	.mask_ack	= au1x_ic1_maskack,
 	.unmask		= au1x_ic1_unmask,
 	.set_type	= au1x_ic_settype,
 	.set_wake	= au1x_ic1_setwake,

arch/mips/alchemy/mtx-1/board_setup.c

@@ -69,6 +69,7 @@ void __init board_setup(void)
 #else
 	au_writel(0xf, Au1500_PCI_CFG);
 #endif
+	board_pci_idsel = mtx1_pci_idsel;
 #endif
 
 	/* Initialize sys_pinfunc */
@@ -85,8 +86,6 @@ void __init board_setup(void)
 	alchemy_gpio_direction_output(211, 1);	/* green on */
 	alchemy_gpio_direction_output(212, 0);	/* red off */
 
-	board_pci_idsel = mtx1_pci_idsel;
-
 	printk(KERN_INFO "4G Systems MTX-1 Board\n");
 }
 

arch/mips/ar7/platform.c

@@ -503,6 +503,7 @@ static int __init ar7_register_devices(void)
 {
 	u16 chip_id;
 	int res;
+	u32 *bootcr, val;
 #ifdef CONFIG_SERIAL_8250
 	static struct uart_port uart_port[2];
 
@@ -595,7 +596,13 @@ static int __init ar7_register_devices(void)
 
 	ar7_wdt_res.end = ar7_wdt_res.start + 0x20;
 
-	res = platform_device_register(&ar7_wdt);
+	bootcr = (u32 *)ioremap_nocache(AR7_REGS_DCL, 4);
+	val = *bootcr;
+	iounmap(bootcr);
+
+	/* Register watchdog only if enabled in hardware */
+	if (val & AR7_WDT_HW_ENA)
+		res = platform_device_register(&ar7_wdt);
 
 	return res;
 }

arch/mips/bcm63xx/Makefile

@@ -1,5 +1,5 @@
 obj-y		+= clk.o cpu.o cs.o gpio.o irq.o prom.o setup.o timer.o \
-		   dev-dsp.o dev-enet.o dev-pcmcia.o dev-uart.o
+		   dev-dsp.o dev-enet.o dev-pcmcia.o dev-uart.o dev-wdt.o
 obj-$(CONFIG_EARLY_PRINTK)	+= early_printk.o
 
 obj-y		+= boards/

arch/mips/bcm63xx/boards/board_bcm963xx.c

@@ -24,7 +24,6 @@
 #include <bcm63xx_dev_enet.h>
 #include <bcm63xx_dev_dsp.h>
 #include <bcm63xx_dev_pcmcia.h>
-#include <bcm63xx_dev_uart.h>
 #include <board_bcm963xx.h>
 
 #define PFX	"board_bcm963xx: "
@@ -794,8 +793,6 @@ int __init board_register_devices(void)
 {
 	u32 val;
 
-	bcm63xx_uart_register();
-
 	if (board.has_pccard)
 		bcm63xx_pcmcia_register();
 

arch/mips/bcm63xx/cpu.c

@@ -10,6 +10,7 @@
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/cpu.h>
+#include <asm/cpu-info.h>
 #include <bcm63xx_cpu.h>
 #include <bcm63xx_regs.h>
 #include <bcm63xx_io.h>
@@ -284,6 +285,7 @@ void __init bcm63xx_cpu_init(void)
 {
 	unsigned int tmp, expected_cpu_id;
 	struct cpuinfo_mips *c = &current_cpu_data;
+	unsigned int cpu = smp_processor_id();
 
 	/* soc registers location depends on cpu type */
 	expected_cpu_id = 0;
@@ -293,6 +295,7 @@ void __init bcm63xx_cpu_init(void)
 	 * BCM6338 as the same PrId as BCM3302 see arch/mips/kernel/cpu-probe.c
 	 */
 	case CPU_BCM3302:
+		__cpu_name[cpu] = "Broadcom BCM6338";
 		expected_cpu_id = BCM6338_CPU_ID;
 		bcm63xx_regs_base = bcm96338_regs_base;
 		bcm63xx_irqs = bcm96338_irqs;

arch/mips/bcm63xx/dev-uart.c

@@ -10,7 +10,6 @@
 #include <linux/kernel.h>
 #include <linux/platform_device.h>
 #include <bcm63xx_cpu.h>
-#include <bcm63xx_dev_uart.h>
 
 static struct resource uart_resources[] = {
 	{
@@ -39,3 +38,4 @@ int __init bcm63xx_uart_register(void)
 	uart_resources[1].start = bcm63xx_get_irq_number(IRQ_UART0);
 	return platform_device_register(&bcm63xx_uart_device);
 }
+arch_initcall(bcm63xx_uart_register);

arch/mips/bcm63xx/dev-wdt.c

@@ -0,0 +1,37 @@
+/*
+ * 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) 2008 Florian Fainelli <[email protected]>
+ */
+
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/platform_device.h>
+#include <bcm63xx_cpu.h>
+
+static struct resource wdt_resources[] = {
+	{
+		.start		= -1, /* filled at runtime */
+		.end		= -1, /* filled at runtime */
+		.flags		= IORESOURCE_MEM,
+	},
+};
+
+static struct platform_device bcm63xx_wdt_device = {
+	.name		= "bcm63xx-wdt",
+	.id		= 0,
+	.num_resources	= ARRAY_SIZE(wdt_resources),
+	.resource	= wdt_resources,
+};
+
+int __init bcm63xx_wdt_register(void)
+{
+	wdt_resources[0].start = bcm63xx_regset_address(RSET_WDT);
+	wdt_resources[0].end = wdt_resources[0].start;
+	wdt_resources[0].end += RSET_WDT_SIZE - 1;
+
+	return platform_device_register(&bcm63xx_wdt_device);
+}
+arch_initcall(bcm63xx_wdt_register);

arch/mips/bcm63xx/setup.c

@@ -75,7 +75,9 @@ void bcm63xx_machine_reboot(void)
 		bcm6348_a1_reboot();
 
 	printk(KERN_INFO "triggering watchdog soft-reset...\n");
-	bcm_perf_writel(SYS_PLL_SOFT_RESET, PERF_SYS_PLL_CTL_REG);
+	reg = bcm_perf_readl(PERF_SYS_PLL_CTL_REG);
+	reg |= SYS_PLL_SOFT_RESET;
+	bcm_perf_writel(reg, PERF_SYS_PLL_CTL_REG);
 	while (1)
 		;
 }