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

Pull MIPS updates from Ralf Baechle:
 "This has been sitting in -next for a while with no objections and all
  MIPS defconfigs except one are building fine; that one platform got
  broken by another patch in your tree and I'm going to submit a patch
  separately.

   - a handful of fixes that didn't make 3.11
   - a few bits of Octeon 3 support with more to come for a later
     release
   - platform enhancements for Octeon, ath79, Lantiq, Netlogic and
     Ralink SOCs
   - a GPIO driver for the Octeon
   - some dusting off of the DECstation code
   - the usual dose of cleanups"

* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: (65 commits)
  MIPS: DMA: Fix BUG due to smp_processor_id() in preemptible code
  MIPS: kexec: Fix random crashes while loading crashkernel
  MIPS: kdump: Skip walking indirection page for crashkernels
  MIPS: DECstation HRT calibration bug fixes
  MIPS: Export copy_from_user_page() (needed by lustre)
  MIPS: Add driver for the built-in PCI controller of the RT3883 SoC
  MIPS: DMA: For BMIPS5000 cores flush region just like non-coherent R10000
  MIPS: ralink: Add support for reset-controller API
  MIPS: ralink: mt7620: Add cpu-feature-override header
  MIPS: ralink: mt7620: Add spi clock definition
  MIPS: ralink: mt7620: Add wdt clock definition
  MIPS: ralink: mt7620: Improve clock frequency detection
  MIPS: ralink: mt7620: This SoC has EHCI and OHCI hosts
  MIPS: ralink: mt7620: Add verbose ram info
  MIPS: ralink: Probe clocksources from OF
  MIPS: ralink: Add support for systick timer found on newer ralink SoC
  MIPS: ralink: Add support for periodic timer irq
  MIPS: Netlogic: Built-in DTB for XLP2xx SoC boards
  MIPS: Netlogic: Add support for USB on XLP2xx
  MIPS: Netlogic: XLP2xx update for I2C controller
  ...

1 files changed, 22 insertions, 33 deletions

diff --git a/arch/mips/include/asm/bmips.h b/arch/mips/include/asm/bmips.h
index 552a65a0cf2b..27bd060d716e 100644
--- a/arch/mips/include/asm/bmips.h
+++ b/arch/mips/include/asm/bmips.h
@@ -65,44 +65,33 @@ static inline unsigned long bmips_read_zscm_reg(unsigned int offset)
 {
 	unsigned long ret;
 
-	__asm__ __volatile__(
-		".set push\n"
-		".set noreorder\n"
-		"cache %1, 0(%2)\n"
-		"sync\n"
-		"_ssnop\n"
-		"_ssnop\n"
-		"_ssnop\n"
-		"_ssnop\n"
-		"_ssnop\n"
-		"_ssnop\n"
-		"_ssnop\n"
-		"mfc0 %0, $28, 3\n"
-		"_ssnop\n"
-		".set pop\n"
-		: "=&r" (ret)
-		: "i" (Index_Load_Tag_S), "r" (ZSCM_REG_BASE + offset)
-		: "memory");
+	barrier();
+	cache_op(Index_Load_Tag_S, ZSCM_REG_BASE + offset);
+	__sync();
+	_ssnop();
+	_ssnop();
+	_ssnop();
+	_ssnop();
+	_ssnop();
+	_ssnop();
+	_ssnop();
+	ret = read_c0_ddatalo();
+	_ssnop();
+
 	return ret;
 }
 
 static inline void bmips_write_zscm_reg(unsigned int offset, unsigned long data)
 {
-	__asm__ __volatile__(
-		".set push\n"
-		".set noreorder\n"
-		"mtc0 %0, $28, 3\n"
-		"_ssnop\n"
-		"_ssnop\n"
-		"_ssnop\n"
-		"cache %1, 0(%2)\n"
-		"_ssnop\n"
-		"_ssnop\n"
-		"_ssnop\n"
-		: /* no outputs */
-		: "r" (data),
-		  "i" (Index_Store_Tag_S), "r" (ZSCM_REG_BASE + offset)
-		: "memory");
+	write_c0_ddatalo(data);
+	_ssnop();
+	_ssnop();
+	_ssnop();
+	cache_op(Index_Store_Tag_S, ZSCM_REG_BASE + offset);
+	_ssnop();
+	_ssnop();
+	_ssnop();
+	barrier();
 }
 
 #endif /* !defined(__ASSEMBLY__) */