12 files changed, 296 insertions, 19 deletions

diff --git a/arch/mips/include/asm/cpu-features.h b/arch/mips/include/asm/cpu-features.h
index fa44f3ec5302..d445d060e346 100644
--- a/arch/mips/include/asm/cpu-features.h
+++ b/arch/mips/include/asm/cpu-features.h
@@ -13,12 +13,6 @@
 #include <asm/cpu-info.h>
 #include <cpu-feature-overrides.h>
 
-#ifndef current_cpu_type
-#define current_cpu_type()      current_cpu_data.cputype
-#endif
-
-#define boot_cpu_type()         cpu_data[0].cputype
-
 /*
  * SMP assumption: Options of CPU 0 are a superset of all processors.
  * This is true for all known MIPS systems.
@@ -193,7 +187,7 @@
 
 /*
  * MIPS32, MIPS64, VR5500, IDT32332, IDT32334 and maybe a few other
- * pre-MIPS32/MIPS53 processors have CLO, CLZ.  The IDT RC64574 is 64-bit and
+ * pre-MIPS32/MIPS64 processors have CLO, CLZ.  The IDT RC64574 is 64-bit and
  * has CLO and CLZ but not DCLO nor DCLZ.  For 64-bit kernels
  * cpu_has_clo_clz also indicates the availability of DCLO and DCLZ.
  */
diff --git a/arch/mips/include/asm/cpu-info.h b/arch/mips/include/asm/cpu-info.h
index 41401d8eb7d1..21c8e29c8f91 100644
--- a/arch/mips/include/asm/cpu-info.h
+++ b/arch/mips/include/asm/cpu-info.h
@@ -84,6 +84,7 @@ struct cpuinfo_mips {
 extern struct cpuinfo_mips cpu_data[];
 #define current_cpu_data cpu_data[smp_processor_id()]
 #define raw_current_cpu_data cpu_data[raw_smp_processor_id()]
+#define boot_cpu_data cpu_data[0]
 
 extern void cpu_probe(void);
 extern void cpu_report(void);
diff --git a/arch/mips/include/asm/cpu-type.h b/arch/mips/include/asm/cpu-type.h
new file mode 100644
index 000000000000..4a402cc60c03
--- /dev/null
+++ b/arch/mips/include/asm/cpu-type.h
@@ -0,0 +1,203 @@
+/*
+ * 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) 2003, 2004 Ralf Baechle
+ * Copyright (C) 2004  Maciej W. Rozycki
+ */
+#ifndef __ASM_CPU_TYPE_H
+#define __ASM_CPU_TYPE_H
+
+#include <linux/smp.h>
+#include <linux/compiler.h>
+
+static inline int __pure __get_cpu_type(const int cpu_type)
+{
+        switch (cpu_type) {
+#if defined(CONFIG_SYS_HAS_CPU_LOONGSON2E) || \
+    defined(CONFIG_SYS_HAS_CPU_LOONGSON2F)
+        case CPU_LOONGSON2:
+#endif
+
+#ifdef CONFIG_SYS_HAS_CPU_LOONGSON1B
+        case CPU_LOONGSON1:
+#endif
+
+#ifdef CONFIG_SYS_HAS_CPU_MIPS32_R1
+        case CPU_4KC:
+        case CPU_ALCHEMY:
+        case CPU_BMIPS3300:
+        case CPU_BMIPS4350:
+        case CPU_PR4450:
+        case CPU_BMIPS32:
+        case CPU_JZRISC:
+#endif
+
+#if defined(CONFIG_SYS_HAS_CPU_MIPS32_R1) || \
+    defined(CONFIG_SYS_HAS_CPU_MIPS32_R2)
+        case CPU_4KEC:
+#endif
+
+#ifdef CONFIG_SYS_HAS_CPU_MIPS32_R2
+        case CPU_4KSC:
+        case CPU_24K:
+        case CPU_34K:
+        case CPU_1004K:
+        case CPU_74K:
+        case CPU_M14KC:
+        case CPU_M14KEC:
+#endif
+
+#ifdef CONFIG_SYS_HAS_CPU_MIPS64_R1
+        case CPU_5KC:
+        case CPU_5KE:
+        case CPU_20KC:
+        case CPU_25KF:
+        case CPU_SB1:
+        case CPU_SB1A:
+#endif
+
+#ifdef CONFIG_SYS_HAS_CPU_MIPS64_R2
+        /*
+         * All MIPS64 R2 processors have their own special symbols.  That is,
+         * there currently is no pure R2 core
+         */
+#endif
+
+#ifdef CONFIG_SYS_HAS_CPU_R3000
+        case CPU_R2000:
+        case CPU_R3000:
+        case CPU_R3000A:
+        case CPU_R3041:
+        case CPU_R3051:
+        case CPU_R3052:
+        case CPU_R3081:
+        case CPU_R3081E:
+#endif
+
+#ifdef CONFIG_SYS_HAS_CPU_TX39XX
+        case CPU_TX3912:
+        case CPU_TX3922:
+        case CPU_TX3927:
+#endif
+
+#ifdef CONFIG_SYS_HAS_CPU_VR41XX
+        case CPU_VR41XX:
+        case CPU_VR4111:
+        case CPU_VR4121:
+        case CPU_VR4122:
+        case CPU_VR4131:
+        case CPU_VR4133:
+        case CPU_VR4181:
+        case CPU_VR4181A:
+#endif
+
+#ifdef CONFIG_SYS_HAS_CPU_R4300
+        case CPU_R4300:
+        case CPU_R4310:
+#endif
+
+#ifdef CONFIG_SYS_HAS_CPU_R4X00
+        case CPU_R4000PC:
+        case CPU_R4000SC:
+        case CPU_R4000MC:
+        case CPU_R4200:
+        case CPU_R4400PC:
+        case CPU_R4400SC:
+        case CPU_R4400MC:
+        case CPU_R4600:
+        case CPU_R4700:
+        case CPU_R4640:
+        case CPU_R4650:
+#endif
+
+#ifdef CONFIG_SYS_HAS_CPU_TX49XX
+        case CPU_TX49XX:
+#endif
+
+#ifdef CONFIG_SYS_HAS_CPU_R5000
+        case CPU_R5000:
+#endif
+
+#ifdef CONFIG_SYS_HAS_CPU_R5432
+        case CPU_R5432:
+#endif
+
+#ifdef CONFIG_SYS_HAS_CPU_R5500
+        case CPU_R5500:
+#endif
+
+#ifdef CONFIG_SYS_HAS_CPU_R6000
+        case CPU_R6000:
+        case CPU_R6000A:
+#endif
+
+#ifdef CONFIG_SYS_HAS_CPU_NEVADA
+        case CPU_NEVADA:
+#endif
+
+#ifdef CONFIG_SYS_HAS_CPU_R8000
+        case CPU_R8000:
+#endif
+
+#ifdef CONFIG_SYS_HAS_CPU_R10000
+        case CPU_R10000:
+        case CPU_R12000:
+        case CPU_R14000:
+#endif
+#ifdef CONFIG_SYS_HAS_CPU_RM7000
+        case CPU_RM7000:
+        case CPU_SR71000:
+#endif
+#ifdef CONFIG_SYS_HAS_CPU_RM9000
+        case CPU_RM9000:
+#endif
+#ifdef CONFIG_SYS_HAS_CPU_SB1
+        case CPU_SB1:
+        case CPU_SB1A:
+#endif
+#ifdef CONFIG_SYS_HAS_CPU_CAVIUM_OCTEON
+        case CPU_CAVIUM_OCTEON:
+        case CPU_CAVIUM_OCTEON_PLUS:
+        case CPU_CAVIUM_OCTEON2:
+#endif
+
+#ifdef CONFIG_SYS_HAS_CPU_BMIPS4380
+        case CPU_BMIPS4380:
+#endif
+
+#ifdef CONFIG_SYS_HAS_CPU_BMIPS5000
+        case CPU_BMIPS5000:
+#endif
+
+#ifdef CONFIG_SYS_HAS_CPU_XLP
+        case CPU_XLP:
+#endif
+
+#ifdef CONFIG_SYS_HAS_CPU_XLR
+        case CPU_XLR:
+#endif
+                break;
+        default:
+                unreachable();
+        }
+
+        return cpu_type;
+}
+
+static inline int __pure current_cpu_type(void)
+{
+        const int cpu_type = current_cpu_data.cputype;
+
+        return __get_cpu_type(cpu_type);
+}
+
+static inline int __pure boot_cpu_type(void)
+{
+        const int cpu_type = cpu_data[0].cputype;
+
+        return __get_cpu_type(cpu_type);
+}
+
+#endif /* __ASM_CPU_TYPE_H */
diff --git a/arch/mips/include/asm/cpu.h b/arch/mips/include/asm/cpu.h
index 71b9f1998be7..d2035e16502a 100644
--- a/arch/mips/include/asm/cpu.h
+++ b/arch/mips/include/asm/cpu.h
@@ -3,15 +3,14 @@
  *        various MIPS cpu types.
  *
  * Copyright (C) 1996 David S. Miller (davem@davemloft.net)
- * Copyright (C) 2004  Maciej W. Rozycki
+ * Copyright (C) 2004, 2013  Maciej W. Rozycki
  */
 #ifndef _ASM_CPU_H
 #define _ASM_CPU_H
 
-/* Assigned Company values for bits 23:16 of the PRId Register
-   (CP0 register 15, select 0).  As of the MIPS32 and MIPS64 specs from
-   MTI, the PRId register is defined in this (backwards compatible)
-   way:
+/*
+   As of the MIPS32 and MIPS64 specs from MTI, the PRId register (CP0
+   register 15, select 0) is defined in this (backwards compatible) way:
 
   +----------------+----------------+----------------+----------------+
   | Company Options| Company ID     | Processor ID   | Revision       |
@@ -23,6 +22,14 @@
    spec.
 */
 
+#define PRID_OPT_MASK           0xff000000
+
+/*
+ * Assigned Company values for bits 23:16 of the PRId register.
+ */
+
+#define PRID_COMP_MASK          0xff0000
+
 #define PRID_COMP_LEGACY        0x000000
 #define PRID_COMP_MIPS          0x010000
 #define PRID_COMP_BROADCOM      0x020000
@@ -38,10 +45,17 @@
 #define PRID_COMP_INGENIC       0xd00000
 
 /*
- * Assigned values for the product ID register.  In order to detect a
- * certain CPU type exactly eventually additional registers may need to
- * be examined.  These are valid when 23:16 == PRID_COMP_LEGACY
+ * Assigned Processor ID (implementation) values for bits 15:8 of the PRId
+ * register.  In order to detect a certain CPU type exactly eventually
+ * additional registers may need to be examined.
  */
+
+#define PRID_IMP_MASK           0xff00
+
+/*
+ * These are valid when 23:16 == PRID_COMP_LEGACY
+ */
+
 #define PRID_IMP_R2000          0x0100
 #define PRID_IMP_AU1_REV1       0x0100
 #define PRID_IMP_AU1_REV2       0x0200
@@ -182,11 +196,15 @@
 #define PRID_IMP_NETLOGIC_XLP2XX        0x1200
 
 /*
- * Definitions for 7:0 on legacy processors
+ * Particular Revision values for bits 7:0 of the PRId register.
  */
 
 #define PRID_REV_MASK           0x00ff
 
+/*
+ * Definitions for 7:0 on legacy processors
+ */
+
 #define PRID_REV_TX4927         0x0022
 #define PRID_REV_TX4937         0x0030
 #define PRID_REV_R4400          0x0040
@@ -227,6 +245,8 @@
  *  31                             16 15             8 7              0
  */
 
+#define FPIR_IMP_MASK           0xff00
+
 #define FPIR_IMP_NONE           0x0000
 
 enum cpu_type_enum {
diff --git a/arch/mips/include/asm/mach-au1x00/au1000.h b/arch/mips/include/asm/mach-au1x00/au1000.h
index 3e11a468cdf8..54f9e84db8ac 100644
--- a/arch/mips/include/asm/mach-au1x00/au1000.h
+++ b/arch/mips/include/asm/mach-au1x00/au1000.h
@@ -43,6 +43,8 @@
 #include <linux/io.h>
 #include <linux/irq.h>
 
+#include <asm/cpu.h>
+
 /* cpu pipeline flush */
 void static inline au_sync(void)
 {
@@ -140,7 +142,7 @@ static inline int au1xxx_cpu_needs_config_od(void)
 
 static inline int alchemy_get_cputype(void)
 {
-        switch (read_c0_prid() & 0xffff0000) {
+        switch (read_c0_prid() & (PRID_OPT_MASK | PRID_COMP_MASK)) {
         case 0x00030000:
                 return ALCHEMY_CPU_AU1000;
                 break;
diff --git a/arch/mips/include/asm/mach-ip22/cpu-feature-overrides.h b/arch/mips/include/asm/mach-ip22/cpu-feature-overrides.h
index f4caacd25552..1bcb6421205e 100644
--- a/arch/mips/include/asm/mach-ip22/cpu-feature-overrides.h
+++ b/arch/mips/include/asm/mach-ip22/cpu-feature-overrides.h
@@ -8,6 +8,8 @@
 #ifndef __ASM_MACH_IP22_CPU_FEATURE_OVERRIDES_H
 #define __ASM_MACH_IP22_CPU_FEATURE_OVERRIDES_H
 
+#include <asm/cpu.h>
+
 /*
  * IP22 with a variety of processors so we can't use defaults for everything.
  */
diff --git a/arch/mips/include/asm/mach-ip27/cpu-feature-overrides.h b/arch/mips/include/asm/mach-ip27/cpu-feature-overrides.h
index 1d2b6ff60d33..d6111aa2e886 100644
--- a/arch/mips/include/asm/mach-ip27/cpu-feature-overrides.h
+++ b/arch/mips/include/asm/mach-ip27/cpu-feature-overrides.h
@@ -8,6 +8,8 @@
 #ifndef __ASM_MACH_IP27_CPU_FEATURE_OVERRIDES_H
 #define __ASM_MACH_IP27_CPU_FEATURE_OVERRIDES_H
 
+#include <asm/cpu.h>
+
 /*
  * IP27 only comes with R10000 family processors all using the same config
  */
diff --git a/arch/mips/include/asm/mach-ip28/cpu-feature-overrides.h b/arch/mips/include/asm/mach-ip28/cpu-feature-overrides.h
index 65e9c856390d..4cec06d133db 100644
--- a/arch/mips/include/asm/mach-ip28/cpu-feature-overrides.h
+++ b/arch/mips/include/asm/mach-ip28/cpu-feature-overrides.h
@@ -9,6 +9,8 @@
 #ifndef __ASM_MACH_IP28_CPU_FEATURE_OVERRIDES_H
 #define __ASM_MACH_IP28_CPU_FEATURE_OVERRIDES_H
 
+#include <asm/cpu.h>
+
 /*
  * IP28 only comes with R10000 family processors all using the same config
  */
diff --git a/arch/mips/include/asm/mipsregs.h b/arch/mips/include/asm/mipsregs.h
index fed1c3e9b486..e0331414c7d6 100644
--- a/arch/mips/include/asm/mipsregs.h
+++ b/arch/mips/include/asm/mipsregs.h
@@ -603,6 +603,13 @@
 #define MIPS_CONF4_MMUEXTDEF    (_ULCAST_(3) << 14)
 #define MIPS_CONF4_MMUEXTDEF_MMUSIZEEXT (_ULCAST_(1) << 14)
 
+#define MIPS_CONF5_NF           (_ULCAST_(1) << 0)
+#define MIPS_CONF5_UFR          (_ULCAST_(1) << 2)
+#define MIPS_CONF5_MSAEN        (_ULCAST_(1) << 27)
+#define MIPS_CONF5_EVA          (_ULCAST_(1) << 28)
+#define MIPS_CONF5_CV           (_ULCAST_(1) << 29)
+#define MIPS_CONF5_K            (_ULCAST_(1) << 30)
+
 #define MIPS_CONF6_SYND         (_ULCAST_(1) << 13)
 
 #define MIPS_CONF7_WII          (_ULCAST_(1) << 31)
diff --git a/arch/mips/include/asm/pci.h b/arch/mips/include/asm/pci.h
index f194c08bd057..12d6842962be 100644
--- a/arch/mips/include/asm/pci.h
+++ b/arch/mips/include/asm/pci.h
@@ -83,6 +83,18 @@ static inline void pcibios_penalize_isa_irq(int irq, int active)
 extern int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma,
         enum pci_mmap_state mmap_state, int write_combine);
 
+#define HAVE_ARCH_PCI_RESOURCE_TO_USER
+
+static inline void pci_resource_to_user(const struct pci_dev *dev, int bar,
+                const struct resource *rsrc, resource_size_t *start,
+                resource_size_t *end)
+{
+        phys_t size = resource_size(rsrc);
+
+        *start = fixup_bigphys_addr(rsrc->start, size);
+        *end = rsrc->start + size;
+}
+
 /*
  * Dynamic DMA mapping stuff.
  * MIPS has everything mapped statically.
diff --git a/arch/mips/include/asm/timex.h b/arch/mips/include/asm/timex.h
index 6529704aa73a..c5424757da65 100644
--- a/arch/mips/include/asm/timex.h
+++ b/arch/mips/include/asm/timex.h
@@ -10,7 +10,9 @@
 
 #ifdef __KERNEL__
 
+#include <asm/cpu-features.h>
 #include <asm/mipsregs.h>
+#include <asm/cpu-type.h>
 
 /*
  * This is the clock rate of the i8253 PIT.  A MIPS system may not have
@@ -33,9 +35,38 @@
 
 typedef unsigned int cycles_t;
 
+/*
+ * On R4000/R4400 before version 5.0 an erratum exists such that if the
+ * cycle counter is read in the exact moment that it is matching the
+ * compare register, no interrupt will be generated.
+ *
+ * There is a suggested workaround and also the erratum can't strike if
+ * the compare interrupt isn't being used as the clock source device.
+ * However for now the implementaton of this function doesn't get these
+ * fine details right.
+ */
 static inline cycles_t get_cycles(void)
 {
-        return 0;
+        switch (boot_cpu_type()) {
+        case CPU_R4400PC:
+        case CPU_R4400SC:
+        case CPU_R4400MC:
+                if ((read_c0_prid() & 0xff) >= 0x0050)
+                        return read_c0_count();
+                break;
+
+        case CPU_R4000PC:
+        case CPU_R4000SC:
+        case CPU_R4000MC:
+                break;
+
+        default:
+                if (cpu_has_counter)
+                        return read_c0_count();
+                break;
+        }
+
+        return 0;       /* no usable counter */
 }
 
 #endif /* __KERNEL__ */
diff --git a/arch/mips/include/asm/vga.h b/arch/mips/include/asm/vga.h
index f4cff7e4fa8a..f82c83749a08 100644
--- a/arch/mips/include/asm/vga.h
+++ b/arch/mips/include/asm/vga.h
@@ -6,6 +6,7 @@
 #ifndef _ASM_VGA_H
 #define _ASM_VGA_H
 
+#include <asm/addrspace.h>
 #include <asm/byteorder.h>
 
 /*
@@ -13,7 +14,7 @@
  *      access the videoram directly without any black magic.
  */
 
-#define VGA_MAP_MEM(x, s)       (0xb0000000L + (unsigned long)(x))
+#define VGA_MAP_MEM(x, s)       CKSEG1ADDR(0x10000000L + (unsigned long)(x))
 
 #define vga_readb(x)    (*(x))
 #define vga_writeb(x, y)        (*(y) = (x))