@@ -1,6 +1,9 @@
config CREATE_ARCH_SYMLINK
bool
+config HAVE_ARCH_IOREMAP
+ bool
+
choice
prompt "Architecture select"
default SANDBOX
@@ -33,6 +36,7 @@ config MICROBLAZE
config MIPS
bool "MIPS architecture"
+ select HAVE_ARCH_IOREMAP
select HAVE_PRIVATE_LIBGCC
select SUPPORT_OF_CONTROL
@@ -5,6 +5,22 @@
#ifndef _LINUX_IO_H
#define _LINUX_IO_H
+#include <linux/compiler.h>
+#include <linux/types.h>
#include <asm/io.h>
+#ifndef CONFIG_HAVE_ARCH_IOREMAP
+static inline void __iomem *ioremap(resource_size_t offset,
+ resource_size_t size)
+{
+ return (void __iomem *)(unsigned long)offset;
+}
+
+static inline void iounmap(void __iomem *addr)
+{
+}
+
+#define devm_ioremap(dev, offset, size) ioremap(offset, size)
+#endif
+
#endif /* _LINUX_IO_H */
For most of architectures in U-Boot, virtual address is straight mapped to physical address. So, it makes sense to have generic defines of ioremap and friends in <linux/io.h>. All of them are just empty and will disappear at compile time, but they will be helpful to implement drivers which are counterparts of Linux ones. I notice MIPS already has its own implementation, so I added a Kconfig symbol CONFIG_HAVE_ARCH_IOREMAP which MIPS (and maybe Sandbox as well) can select. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> --- Changes in v2: - Use #ifndef CONFIG_HAVE_ARCH_IOREMAP instead of #ifndef CONFIG_MIPS arch/Kconfig | 4 ++++ include/linux/io.h | 16 ++++++++++++++++ 2 files changed, 20 insertions(+) -- 1.9.1 _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot