The Atmel quadspi driver makes use of the memcpy_(to|from)io, but we don't define them on all platforms. Fix this to allow for easier porting of kernel code.
Signed-off-by: Ahmad Fatoum <[email protected]> --- include/asm-generic/io.h | 53 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 53 insertions(+) diff --git a/include/asm-generic/io.h b/include/asm-generic/io.h index 76e6d0dc1112..150a97645b6b 100644 --- a/include/asm-generic/io.h +++ b/include/asm-generic/io.h @@ -11,6 +11,7 @@ #ifndef __ASM_GENERIC_IO_H #define __ASM_GENERIC_IO_H +#include <linux/string.h> /* for memset() and memcpy() */ #include <linux/types.h> #include <asm/byteorder.h> @@ -424,4 +425,56 @@ static inline void iowrite64be(u64 value, volatile void __iomem *addr) #define IOMEM(addr) ((void __force __iomem *)(addr)) #endif +#ifndef memset_io +#define memset_io memset_io +/** + * memset_io Set a range of I/O memory to a constant value + * @addr: The beginning of the I/O-memory range to set + * @val: The value to set the memory to + * @count: The number of bytes to set + * + * Set a range of I/O memory to a given value. + */ +static inline void memset_io(volatile void __iomem *addr, int value, + size_t size) +{ + memset(IOMEM(addr), value, size); +} +#endif + +#ifndef memcpy_fromio +#define memcpy_fromio memcpy_fromio +/** + * memcpy_fromio Copy a block of data from I/O memory + * @dst: The (RAM) destination for the copy + * @src: The (I/O memory) source for the data + * @count: The number of bytes to copy + * + * Copy a block of data from I/O memory. + */ +static inline void memcpy_fromio(void *buffer, + const volatile void __iomem *addr, + size_t size) +{ + memcpy(buffer, IOMEM(addr), size); +} +#endif + +#ifndef memcpy_toio +#define memcpy_toio memcpy_toio +/** + * memcpy_toio Copy a block of data into I/O memory + * @dst: The (I/O memory) destination for the copy + * @src: The (RAM) source for the data + * @count: The number of bytes to copy + * + * Copy a block of data to I/O memory. + */ +static inline void memcpy_toio(volatile void __iomem *addr, const void *buffer, + size_t size) +{ + memcpy(IOMEM(addr), buffer, size); +} +#endif + #endif /* __ASM_GENERIC_IO_H */ -- 2.30.0 _______________________________________________ barebox mailing list [email protected] http://lists.infradead.org/mailman/listinfo/barebox
