Merge branch 'mips-next' of http://dev.phrozen.org/githttp/mips-next …

…into mips-for-linux-next

arch/mips/Kconfig

@@ -106,6 +106,7 @@ config ATH79
 
 config BCM47XX
 	bool "Broadcom BCM47XX based boards"
+	select ARCH_WANT_OPTIONAL_GPIOLIB
 	select CEVT_R4K
 	select CSRC_R4K
 	select DMA_NONCOHERENT
@@ -114,7 +115,6 @@ config BCM47XX
 	select IRQ_CPU
 	select SYS_SUPPORTS_32BIT_KERNEL
 	select SYS_SUPPORTS_LITTLE_ENDIAN
-	select GENERIC_GPIO
 	select SYS_HAS_EARLY_PRINTK
 	help
 	 Support for BCM47XX based boards
@@ -798,7 +798,7 @@ config NLM_XLR_BOARD
 	select CSRC_R4K
 	select IRQ_CPU
 	select ARCH_SUPPORTS_MSI
-	select ZONE_DMA if 64BIT
+	select ZONE_DMA32 if 64BIT
 	select SYNC_R4K
 	select SYS_HAS_EARLY_PRINTK
 	select USB_ARCH_HAS_OHCI if USB_SUPPORT
@@ -826,7 +826,7 @@ config NLM_XLP_BOARD
 	select CEVT_R4K
 	select CSRC_R4K
 	select IRQ_CPU
-	select ZONE_DMA if 64BIT
+	select ZONE_DMA32 if 64BIT
 	select SYNC_R4K
 	select SYS_HAS_EARLY_PRINTK
 	select USE_OF
@@ -1507,6 +1507,7 @@ config CPU_XLP
 	select WEAK_ORDERING
 	select WEAK_REORDERING_BEYOND_LLSC
 	select CPU_HAS_PREFETCH
+	select CPU_MIPSR2
 	help
 	  Netlogic Microsystems XLP processors.
 endchoice
@@ -1718,7 +1719,7 @@ config CPU_SUPPORTS_UNCACHED_ACCELERATED
 	bool
 config MIPS_PGD_C0_CONTEXT
 	bool
-	default y if 64BIT && CPU_MIPSR2
+	default y if 64BIT && CPU_MIPSR2 && !CPU_XLP
 
 #
 # Set to y for ptrace access to watch registers.
@@ -2149,7 +2150,7 @@ config NODES_SHIFT
 
 config HW_PERF_EVENTS
 	bool "Enable hardware performance counter support for perf events"
-	depends on PERF_EVENTS && !MIPS_MT_SMTC && OPROFILE=n && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON)
+	depends on PERF_EVENTS && !MIPS_MT_SMTC && OPROFILE=n && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP)
 	default y
 	help
 	  Enable hardware performance counter support for perf events. If

arch/mips/bcm47xx/Kconfig

@@ -9,6 +9,7 @@ config BCM47XX_SSB
 	select SSB_EMBEDDED
 	select SSB_B43_PCI_BRIDGE if PCI
 	select SSB_PCICORE_HOSTMODE if PCI
+	select SSB_DRIVER_GPIO
 	default y
 	help
 	 Add support for old Broadcom BCM47xx boards with Sonics Silicon Backplane support.
@@ -23,6 +24,7 @@ config BCM47XX_BCMA
 	select BCMA_DRIVER_MIPS
 	select BCMA_HOST_PCI if PCI
 	select BCMA_DRIVER_PCI_HOSTMODE if PCI
+	select BCMA_DRIVER_GPIO
 	default y
 	help
 	 Add support for new Broadcom BCM47xx boards with Broadcom specific Advanced Microcontroller Bus.

arch/mips/bcm47xx/Makefile

@@ -3,5 +3,5 @@
 # under Linux.
 #
 
-obj-y 				+= gpio.o irq.o nvram.o prom.o serial.o setup.o time.o sprom.o
+obj-y 				+= irq.o nvram.o prom.o serial.o setup.o time.o sprom.o
 obj-$(CONFIG_BCM47XX_SSB)	+= wgt634u.o

arch/mips/bcm47xx/prom.c

@@ -1,6 +1,7 @@
 /*
  *  Copyright (C) 2004 Florian Schirmer <jolt@tuxbox.org>
  *  Copyright (C) 2007 Aurelien Jarno <aurelien@aurel32.net>
+ *  Copyright (C) 2010-2012 Hauke Mehrtens <hauke@hauke-m.de>
  *
  *  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
@@ -27,6 +28,7 @@
 #include <linux/types.h>
 #include <linux/kernel.h>
 #include <linux/spinlock.h>
+#include <linux/smp.h>
 #include <asm/bootinfo.h>
 #include <asm/fw/cfe/cfe_api.h>
 #include <asm/fw/cfe/cfe_error.h>
@@ -127,6 +129,8 @@ static __init void prom_init_mem(void)
 {
 	unsigned long mem;
 	unsigned long max;
+	unsigned long off;
+	struct cpuinfo_mips *c = &current_cpu_data;
 
 	/* Figure out memory size by finding aliases.
 	 *
@@ -143,18 +147,26 @@ static __init void prom_init_mem(void)
 	 * max contains the biggest possible address supported by the platform.
 	 * If the method wants to try something above we assume 128MB ram.
 	 */
-	max = ((unsigned long)(prom_init) | ((128 << 20) - 1));
+	off = (unsigned long)prom_init;
+	max = off | ((128 << 20) - 1);
 	for (mem = (1 << 20); mem < (128 << 20); mem += (1 << 20)) {
-		if (((unsigned long)(prom_init) + mem) > max) {
+		if ((off + mem) > max) {
 			mem = (128 << 20);
 			printk(KERN_DEBUG "assume 128MB RAM\n");
 			break;
 		}
-		if (*(unsigned long *)((unsigned long)(prom_init) + mem) ==
-		    *(unsigned long *)(prom_init))
+		if (!memcmp(prom_init, prom_init + mem, 32))
 			break;
 	}
 
+	/* Ignoring the last page when ddr size is 128M. Cached
+	 * accesses to last page is causing the processor to prefetch
+	 * using address above 128M stepping out of the ddr address
+	 * space.
+	 */
+	if (c->cputype == CPU_74K && (mem == (128  << 20)))
+		mem -= 0x1000;
+
 	add_memory_region(0, mem, BOOT_MEM_RAM);
 }
 

arch/mips/bcm47xx/setup.c

@@ -94,7 +94,7 @@ static int bcm47xx_get_sprom_ssb(struct ssb_bus *bus, struct ssb_sprom *out)
 		snprintf(prefix, sizeof(prefix), "pci/%u/%u/",
 			 bus->host_pci->bus->number + 1,
 			 PCI_SLOT(bus->host_pci->devfn));
-		bcm47xx_fill_sprom(out, prefix);
+		bcm47xx_fill_sprom(out, prefix, false);
 		return 0;
 	} else {
 		printk(KERN_WARNING "bcm47xx: unable to fill SPROM for given bustype.\n");
@@ -113,7 +113,7 @@ static int bcm47xx_get_invariants(struct ssb_bus *bus,
 	bcm47xx_fill_ssb_boardinfo(&iv->boardinfo, NULL);
 
 	memset(&iv->sprom, 0, sizeof(struct ssb_sprom));
-	bcm47xx_fill_sprom(&iv->sprom, NULL);
+	bcm47xx_fill_sprom(&iv->sprom, NULL, false);
 
 	if (nvram_getenv("cardbus", buf, sizeof(buf)) >= 0)
 		iv->has_cardbus_slot = !!simple_strtoul(buf, NULL, 10);
@@ -165,16 +165,17 @@ static int bcm47xx_get_sprom_bcma(struct bcma_bus *bus, struct ssb_sprom *out)
 		snprintf(prefix, sizeof(prefix), "pci/%u/%u/",
 			 bus->host_pci->bus->number + 1,
 			 PCI_SLOT(bus->host_pci->devfn));
-		bcm47xx_fill_sprom(out, prefix);
+		bcm47xx_fill_sprom(out, prefix, false);
 		return 0;
 	case BCMA_HOSTTYPE_SOC:
 		memset(out, 0, sizeof(struct ssb_sprom));
-		bcm47xx_fill_sprom_ethernet(out, NULL);
 		core = bcma_find_core(bus, BCMA_CORE_80211);
 		if (core) {
 			snprintf(prefix, sizeof(prefix), "sb/%u/",
 				 core->core_index);
-			bcm47xx_fill_sprom(out, prefix);
+			bcm47xx_fill_sprom(out, prefix, true);
+		} else {
+			bcm47xx_fill_sprom(out, NULL, false);
 		}
 		return 0;
 	default: