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| author | Gabor Juhos <juhosg@openwrt.org> | 2013-05-26 12:11:26 +0200 |
|---|---|---|
| committer | Macpaul Lin <macpaul@gmail.com> | 2013-07-24 11:49:16 +0800 |
| commit | bea2868f5e5f994db3f6cf23a6111cfd6ac79fc3 (patch) | |
| tree | 3e4f67b3b0d7d316ab5901584f78dbb21009a3e0 /arch/nds32 | |
| parent | 62c175fbb8a0f9a926c88294ea9f7e88eb898f6c (diff) | |
| download | u-boot-bea2868f5e5f994db3f6cf23a6111cfd6ac79fc3.tar.gz u-boot-bea2868f5e5f994db3f6cf23a6111cfd6ac79fc3.tar.bz2 u-boot-bea2868f5e5f994db3f6cf23a6111cfd6ac79fc3.zip | |
nds32: introduce macros for bit manipulation
U-Boot does not compile for the adp-ag101 boards since
commit f6c3b34697bf8bf05cb4e81c2fd3cadb9a98daea (mmc:
update Faraday FTSDC010 for rw performance)
The driver assumes that the bit manipulation macros
are provided by all architectures. This is not the
case for nds32 and it causes a build error like this:
ftsdc010_mci.c: In function 'ftsdc010_clkset':
ftsdc010_mci.c:118: warning: implicit declaration of function 'setbits_le32'
ftsdc010_mci.c:123: warning: implicit declaration of function 'clrbits_le32'
drivers/mmc/libmmc.o: In function `ftsdc010_request':
/devel/u-boot.git/drivers/mmc/ftsdc010_mci.c:234: undefined reference to `setbits_le32'
/devel/u-boot.git/drivers/mmc/ftsdc010_mci.c:243: undefined reference to `clrbits_le32'
/devel/u-boot.git/drivers/mmc/ftsdc010_mci.c:234: undefined reference to `clrbits_le32'
drivers/mmc/libmmc.o: In function `ftsdc010_clkset':
/devel/u-boot.git/drivers/mmc/ftsdc010_mci.c:118: undefined reference to `clrbits_le32'
/devel/u-boot.git/drivers/mmc/ftsdc010_mci.c:118: undefined reference to `clrbits_le32'
/devel/u-boot.git/drivers/mmc/ftsdc010_mci.c:121: undefined reference to `setbits_le32'
/devel/u-boot.git/drivers/mmc/ftsdc010_mci.c:123: undefined reference to `setbits_le32'
/devel/u-boot.git/drivers/mmc/ftsdc010_mci.c:123: undefined reference to `setbits_le32'
The patch adds bit manipulation macros for the
nds32 architecture to avoid the errors. The macros
are copied from the ARM implementation.
Compile tested only.
Cc: Kuo-Jung Su <dantesu@faraday-tech.com>
Cc: Macpaul Lin <macpaul@andestech.com>
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Diffstat (limited to 'arch/nds32')
| -rw-r--r-- | arch/nds32/include/asm/io.h | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/arch/nds32/include/asm/io.h b/arch/nds32/include/asm/io.h index 39c3dc8d92..254c8f933a 100644 --- a/arch/nds32/include/asm/io.h +++ b/arch/nds32/include/asm/io.h @@ -184,6 +184,43 @@ static inline unsigned int readl(unsigned int *addr) #define in_8(a) __raw_readb(a) /* + * Clear and set bits in one shot. These macros can be used to clear and + * set multiple bits in a register using a single call. These macros can + * also be used to set a multiple-bit bit pattern using a mask, by + * specifying the mask in the 'clear' parameter and the new bit pattern + * in the 'set' parameter. + */ + +#define clrbits(type, addr, clear) \ + out_##type((addr), in_##type(addr) & ~(clear)) + +#define setbits(type, addr, set) \ + out_##type((addr), in_##type(addr) | (set)) + +#define clrsetbits(type, addr, clear, set) \ + out_##type((addr), (in_##type(addr) & ~(clear)) | (set)) + +#define clrbits_be32(addr, clear) clrbits(be32, addr, clear) +#define setbits_be32(addr, set) setbits(be32, addr, set) +#define clrsetbits_be32(addr, clear, set) clrsetbits(be32, addr, clear, set) + +#define clrbits_le32(addr, clear) clrbits(le32, addr, clear) +#define setbits_le32(addr, set) setbits(le32, addr, set) +#define clrsetbits_le32(addr, clear, set) clrsetbits(le32, addr, clear, set) + +#define clrbits_be16(addr, clear) clrbits(be16, addr, clear) +#define setbits_be16(addr, set) setbits(be16, addr, set) +#define clrsetbits_be16(addr, clear, set) clrsetbits(be16, addr, clear, set) + +#define clrbits_le16(addr, clear) clrbits(le16, addr, clear) +#define setbits_le16(addr, set) setbits(le16, addr, set) +#define clrsetbits_le16(addr, clear, set) clrsetbits(le16, addr, clear, set) + +#define clrbits_8(addr, clear) clrbits(8, addr, clear) +#define setbits_8(addr, set) setbits(8, addr, set) +#define clrsetbits_8(addr, clear, set) clrsetbits(8, addr, clear, set) + +/* * Now, pick up the machine-defined IO definitions * #include <asm/arch/io.h> */ |