7 files changed, 42 insertions, 12 deletions
diff --git a/arch/m32r/Kconfig b/arch/m32r/Kconfig
index 3cc8498fe0fe..d227a6988d6b 100644
--- a/arch/m32r/Kconfig
+++ b/arch/m32r/Kconfig
@@ -34,7 +34,7 @@ config NO_IOPORT_MAP
 	def_bool y
 
 config NO_DMA
-	def_bool y
+	def_bool n
 
 config HZ
 	int
diff --git a/arch/m32r/include/asm/device.h b/arch/m32r/include/asm/device.h
index d8f9872b0e2d..4a9f35e0973f 100644
--- a/arch/m32r/include/asm/device.h
+++ b/arch/m32r/include/asm/device.h
@@ -3,5 +3,9 @@
  *
  * This file is released under the GPLv2
  */
-#include <asm-generic/device.h>
+struct dev_archdata {
+	struct dma_map_ops *dma_ops;
+};
 
+struct pdev_archdata {
+};
diff --git a/arch/m32r/include/asm/dma-mapping.h b/arch/m32r/include/asm/dma-mapping.h
new file mode 100644
index 000000000000..2c43a77fe942
--- /dev/null
+++ b/arch/m32r/include/asm/dma-mapping.h
@@ -0,0 +1,32 @@
+#ifndef _ASM_M32R_DMA_MAPPING_H
+#define _ASM_M32R_DMA_MAPPING_H
+
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/mm.h>
+#include <linux/scatterlist.h>
+#include <linux/dma-debug.h>
+#include <linux/io.h>
+
+#define DMA_ERROR_CODE (~(dma_addr_t)0x0)
+
+static inline struct dma_map_ops *get_dma_ops(struct device *dev)
+{
+	if (dev && dev->archdata.dma_ops)
+		return dev->archdata.dma_ops;
+	return &dma_noop_ops;
+}
+
+static inline void dma_cache_sync(struct device *dev, void *vaddr, size_t size,
+				  enum dma_data_direction direction)
+{
+}
+
+static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
+{
+	if (!dev->dma_mask)
+		return false;
+	return addr + size - 1 <= *dev->dma_mask;
+}
+
+#endif /* _ASM_M32R_DMA_MAPPING_H */
diff --git a/arch/m32r/include/asm/mutex.h b/arch/m32r/include/asm/mutex.h
deleted file mode 100644
index 458c1f7fbc18..000000000000
--- a/arch/m32r/include/asm/mutex.h
+++ /dev/null
@@ -1,9 +0,0 @@
-/*
- * Pull in the generic implementation for the mutex fastpath.
- *
- * TODO: implement optimized primitives instead, or leave the generic
- * implementation in place, or pick the atomic_xchg() based generic
- * implementation. (see asm-generic/mutex-xchg.h for details)
- */
-
-#include <asm-generic/mutex-dec.h>
diff --git a/arch/m32r/include/asm/processor.h b/arch/m32r/include/asm/processor.h
index 9f8fd9bef70f..5767367550c6 100644
--- a/arch/m32r/include/asm/processor.h
+++ b/arch/m32r/include/asm/processor.h
@@ -133,6 +133,5 @@ unsigned long get_wchan(struct task_struct *p);
 #define KSTK_ESP(tsk)  ((tsk)->thread.sp)
 
 #define cpu_relax()	barrier()
-#define cpu_relax_lowlatency() cpu_relax()
 
 #endif /* _ASM_M32R_PROCESSOR_H */
diff --git a/arch/m32r/include/uapi/asm/socket.h b/arch/m32r/include/uapi/asm/socket.h
index 5fe42fc7b6c5..5853f8e92c20 100644
--- a/arch/m32r/include/uapi/asm/socket.h
+++ b/arch/m32r/include/uapi/asm/socket.h
@@ -90,4 +90,6 @@
 
 #define SO_CNX_ADVICE		53
 
+#define SCM_TIMESTAMPING_OPT_STATS	54
+
 #endif /* _ASM_M32R_SOCKET_H */
diff --git a/arch/m32r/platforms/m32700ut/setup.c b/arch/m32r/platforms/m32700ut/setup.c
index 9a4ba8a8589d..349eb341752c 100644
--- a/arch/m32r/platforms/m32700ut/setup.c
+++ b/arch/m32r/platforms/m32700ut/setup.c
@@ -201,6 +201,7 @@ static struct irq_chip m32700ut_lanpld_irq_type =
 #define lcdpldirq2port(x)	(unsigned long)((int)M32700UT_LCD_ICUCR1 + \
 				 (((x) - 1) * sizeof(unsigned short)))
 
+#ifdef CONFIG_USB
 static pld_icu_data_t lcdpld_icu_data[M32700UT_NUM_LCD_PLD_IRQ];
 
 static void disable_m32700ut_lcdpld_irq(unsigned int irq)
@@ -253,6 +254,7 @@ static struct irq_chip m32700ut_lcdpld_irq_type =
 	.irq_mask	= mask_m32700ut_lcdpld,
 	.irq_unmask	= unmask_m32700ut_lcdpld,
 };
+#endif
 
 void __init init_IRQ(void)
 {