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| author | Ran Wang <ran.wang_1@nxp.com> | 2017-12-04 06:43:25 (GMT) |
|---|---|---|
| committer | Xie Xiaobo <xiaobo.xie@nxp.com> | 2017-12-12 07:32:43 (GMT) |
| commit | de0d09da8d318745a4e1953cd29623e2badd8a83 (patch) | |
| tree | a0e802abc1f8142ee7c19492febfccc24d7ad2b5 | |
| parent | 4256aae889793e726477a4b735eb59458849a230 (diff) | |
| download | linux-de0d09da8d318745a4e1953cd29623e2badd8a83.tar.xz | |
arch: arm64: add ARM64 specific functions required for ehci fsl driver
Add set/clear bits functions for ARM platform which are used by ehci fsl
driver.
Signed-off-by: Rajesh Bhagat <rejesh.bhagat@nxp.com>
| -rw-r--r-- | arch/arm64/include/asm/io.h | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/arch/arm64/include/asm/io.h b/arch/arm64/include/asm/io.h index 36c1fbf..fd58cb9 100644 --- a/arch/arm64/include/asm/io.h +++ b/arch/arm64/include/asm/io.h @@ -186,6 +186,34 @@ extern void __iomem *ioremap_cache(phys_addr_t phys_addr, size_t size); #define iowrite32be(v,p) ({ __iowmb(); __raw_writel((__force __u32)cpu_to_be32(v), p); }) #define iowrite64be(v,p) ({ __iowmb(); __raw_writeq((__force __u64)cpu_to_be64(v), p); }) +/* access ports */ +#define setbits32(_addr, _v) iowrite32be(ioread32be(_addr) | (_v), (_addr)) +#define clrbits32(_addr, _v) iowrite32be(ioread32be(_addr) & ~(_v), (_addr)) + +#define setbits16(_addr, _v) iowrite16be(ioread16be(_addr) | (_v), (_addr)) +#define clrbits16(_addr, _v) iowrite16be(ioread16be(_addr) & ~(_v), (_addr)) + +#define setbits8(_addr, _v) iowrite8(ioread8(_addr) | (_v), (_addr)) +#define clrbits8(_addr, _v) iowrite8(ioread8(_addr) & ~(_v), (_addr)) + +/* Clear and set bits in one shot. These macros can be used to clear and + * set multiple bits in a register using a single read-modify-write. 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 clrsetbits_be32(addr, clear, set) \ + iowrite32be((ioread32be(addr) & ~(clear)) | (set), (addr)) +#define clrsetbits_le32(addr, clear, set) \ + iowrite32le((ioread32le(addr) & ~(clear)) | (set), (addr)) +#define clrsetbits_be16(addr, clear, set) \ + iowrite16be((ioread16be(addr) & ~(clear)) | (set), (addr)) +#define clrsetbits_le16(addr, clear, set) \ + iowrite16le((ioread16le(addr) & ~(clear)) | (set), (addr)) +#define clrsetbits_8(addr, clear, set) \ + iowrite8((ioread8(addr) & ~(clear)) | (set), (addr)) + #include <asm-generic/io.h> /* |