diff options
Diffstat (limited to 'include/asm-avr32/arch-at32ap')
-rw-r--r-- | include/asm-avr32/arch-at32ap/io.h | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/include/asm-avr32/arch-at32ap/io.h b/include/asm-avr32/arch-at32ap/io.h new file mode 100644 index 000000000000..ee59e401f041 --- /dev/null +++ b/include/asm-avr32/arch-at32ap/io.h | |||
@@ -0,0 +1,39 @@ | |||
1 | #ifndef __ASM_AVR32_ARCH_AT32AP_IO_H | ||
2 | #define __ASM_AVR32_ARCH_AT32AP_IO_H | ||
3 | |||
4 | /* For "bizarre" halfword swapping */ | ||
5 | #include <linux/byteorder/swabb.h> | ||
6 | |||
7 | #if defined(CONFIG_AP7000_32_BIT_SMC) | ||
8 | # define __swizzle_addr_b(addr) (addr ^ 3UL) | ||
9 | # define __swizzle_addr_w(addr) (addr ^ 2UL) | ||
10 | # define __swizzle_addr_l(addr) (addr) | ||
11 | # define ioswabb(a, x) (x) | ||
12 | # define ioswabw(a, x) (x) | ||
13 | # define ioswabl(a, x) (x) | ||
14 | # define __mem_ioswabb(a, x) (x) | ||
15 | # define __mem_ioswabw(a, x) swab16(x) | ||
16 | # define __mem_ioswabl(a, x) swab32(x) | ||
17 | #elif defined(CONFIG_AP7000_16_BIT_SMC) | ||
18 | # define __swizzle_addr_b(addr) (addr ^ 1UL) | ||
19 | # define __swizzle_addr_w(addr) (addr) | ||
20 | # define __swizzle_addr_l(addr) (addr) | ||
21 | # define ioswabb(a, x) (x) | ||
22 | # define ioswabw(a, x) (x) | ||
23 | # define ioswabl(a, x) swahw32(x) | ||
24 | # define __mem_ioswabb(a, x) (x) | ||
25 | # define __mem_ioswabw(a, x) swab16(x) | ||
26 | # define __mem_ioswabl(a, x) swahb32(x) | ||
27 | #else | ||
28 | # define __swizzle_addr_b(addr) (addr) | ||
29 | # define __swizzle_addr_w(addr) (addr) | ||
30 | # define __swizzle_addr_l(addr) (addr) | ||
31 | # define ioswabb(a, x) (x) | ||
32 | # define ioswabw(a, x) swab16(x) | ||
33 | # define ioswabl(a, x) swab32(x) | ||
34 | # define __mem_ioswabb(a, x) (x) | ||
35 | # define __mem_ioswabw(a, x) (x) | ||
36 | # define __mem_ioswabl(a, x) (x) | ||
37 | #endif | ||
38 | |||
39 | #endif /* __ASM_AVR32_ARCH_AT32AP_IO_H */ | ||