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

Pull MIPS updates from Ralf Baechle:
 - Support for Imgtec's Aptiv family of MIPS cores.
 - Improved detection of BCM47xx configurations.
 - Fix hiberation for certain configurations.
 - Add support for the Chinese Loongson 3 CPU, a MIPS64 R2 core and
   systems.
 - Detection and support for the MIPS P5600 core.
 - A few more random fixes that didn't make 3.14.
 - Support for the EVA Extended Virtual Addressing
 - Switch Alchemy to the platform PATA driver
 - Complete unification of Alchemy support
 - Allow availability of I/O cache coherency to be runtime detected
 - Improvments to multiprocessing support for Imgtec platforms
 - A few microoptimizations
 - Cleanups of FPU support
 - Paul Gortmaker's fixes for the init stuff
 - Support for seccomp

* 'mips-for-linux-next' of git://git.linux-mips.org/pub/scm/ralf/upstream-sfr: (165 commits)
  MIPS: CPC: Use __raw_ memory access functions
  MIPS: CM: use __raw_ memory access functions
  MIPS: Fix warning when including smp-ops.h with CONFIG_SMP=n
  MIPS: Malta: GIC IPIs may be used without MT
  MIPS: smp-mt: Use common GIC IPI implementation
  MIPS: smp-cmp: Remove incorrect core number probe
  MIPS: Fix gigaton of warning building with microMIPS.
  MIPS: Fix core number detection for MT cores
  MIPS: MT: core_nvpes function to retrieve VPE count
  MIPS: Provide empty mips_mt_set_cpuoptions when CONFIG_MIPS_MT=n
  MIPS: Lasat: Replace del_timer by del_timer_sync
  MIPS: Malta: Setup PM I/O region on boot
  MIPS: Loongson: Add a Loongson-3 default config file
  MIPS: Loongson 3: Add CPU hotplug support
  MIPS: Loongson 3: Add Loongson-3 SMP support
  MIPS: Loongson: Add Loongson-3 Kconfig options
  MIPS: Loongson: Add swiotlb to support All-Memory DMA
  MIPS: Loongson 3: Add serial port support
  MIPS: Loongson 3: Add IRQ init and dispatch support
  MIPS: Loongson 3: Add HT-linked PCI support
  ...

1 files changed, 10 insertions, 0 deletions

diff --git a/arch/mips/alchemy/common/setup.c b/arch/mips/alchemy/common/setup.c
index 62b4e7bbeab9..566a1743f685 100644
--- a/arch/mips/alchemy/common/setup.c
+++ b/arch/mips/alchemy/common/setup.c
@@ -30,6 +30,7 @@
 #include <linux/jiffies.h>
 #include <linux/module.h>
 
+#include <asm/dma-coherence.h>
 #include <asm/mipsregs.h>
 #include <asm/time.h>
 
@@ -59,6 +60,15 @@ void __init plat_mem_setup(void)
                 /* Clear to obtain best system bus performance */
                 clear_c0_config(1 << 19); /* Clear Config[OD] */
 
+        hw_coherentio = 0;
+        coherentio = 1;
+        switch (alchemy_get_cputype()) {
+        case ALCHEMY_CPU_AU1000:
+        case ALCHEMY_CPU_AU1500:
+        case ALCHEMY_CPU_AU1100:
+                coherentio = 0;
+        }
+
         board_setup();  /* board specific setup */
 
         /* IO/MEM resources. */