sh: Allow use of GENERIC_IOMAP

The synopsys PCI cell used in the later STMicro chips requires code to
be run in order to do IO cycles, rather than just memory mapping the IO
space. Rather than extending the existing SH infrastructure to allow
this, use the GENERIC_IOMAP implmentation to save re-inventing the
wheel.

This set of changes allows the SH to be built with GENERIC_IOMAP
enabled, it just ifdef's out the functions provided by the GENERIC_IOMAP
implementation, and provides a few required missing functions.

Signed-off-by: David McKay <david.mckay@st.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

1 files changed, 10 insertions, 0 deletions

diff --git a/arch/sh/include/asm/io.h b/arch/sh/include/asm/io.h
index 25348141674b..aeecf432d48c 100644
--- a/arch/sh/include/asm/io.h
+++ b/arch/sh/include/asm/io.h
@@ -146,6 +146,7 @@ __BUILD_MEMORY_STRING(q, u64)
 #define readl_relaxed(a)        readl(a)
 #define readq_relaxed(a)        readq(a)
 
+#ifndef CONFIG_GENERIC_IOMAP
 /* Simple MMIO */
 #define ioread8(a)              __raw_readb(a)
 #define ioread16(a)             __raw_readw(a)
@@ -166,6 +167,15 @@ __BUILD_MEMORY_STRING(q, u64)
 #define iowrite8_rep(a, s, c)   __raw_writesb((a), (s), (c))
 #define iowrite16_rep(a, s, c)  __raw_writesw((a), (s), (c))
 #define iowrite32_rep(a, s, c)  __raw_writesl((a), (s), (c))
+#endif
+
+#define mmio_insb(p,d,c)        __raw_readsb(p,d,c)
+#define mmio_insw(p,d,c)        __raw_readsw(p,d,c)
+#define mmio_insl(p,d,c)        __raw_readsl(p,d,c)
+
+#define mmio_outsb(p,s,c)       __raw_writesb(p,s,c)
+#define mmio_outsw(p,s,c)       __raw_writesw(p,s,c)
+#define mmio_outsl(p,s,c)       __raw_writesl(p,s,c)
 
 /* synco on SH-4A, otherwise a nop */
 #define mmiowb()                wmb()