diff options
| author | Bin Meng <bmeng.cn@gmail.com> | 2015-09-09 23:20:24 -0700 |
|---|---|---|
| committer | Simon Glass <sjg@chromium.org> | 2015-09-16 19:53:52 -0600 |
| commit | d0b3e3bfbb1918f2f4c2f49bc0734816a1b6229f (patch) | |
| tree | 6f899bd8d42da1607244f1c4d2326406e9951e3c /arch/x86/include | |
| parent | 6ffe157aeca88a3c9741998347783991a099c88f (diff) | |
x86: quark: Add clrbits, setbits, clrsetbits macros for message port access
On Intel Quark, lots of registers on the message port need be
programmed. Add handy clrbits, setbits, clrsetbits macros for
message port access.
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'arch/x86/include')
| -rw-r--r-- | arch/x86/include/asm/arch-quark/msg_port.h | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/arch/x86/include/asm/arch-quark/msg_port.h b/arch/x86/include/asm/arch-quark/msg_port.h index 2e78a66725..313e23fe08 100644 --- a/arch/x86/include/asm/arch-quark/msg_port.h +++ b/arch/x86/include/asm/arch-quark/msg_port.h @@ -101,6 +101,37 @@ u32 msg_port_io_read(u8 port, u32 reg); */ void msg_port_io_write(u8 port, u32 reg, u32 value); +/* clrbits, setbits, clrsetbits macros for message port access */ + +#define msg_port_normal_read msg_port_read +#define msg_port_normal_write msg_port_write + +#define msg_port_generic_clrsetbits(type, port, reg, clr, set) \ + msg_port_##type##_write(port, reg, \ + (msg_port_##type##_read(port, reg) \ + & ~(clr)) | (set)) + +#define msg_port_clrbits(port, reg, clr) \ + msg_port_generic_clrsetbits(normal, port, reg, clr, 0) +#define msg_port_setbits(port, reg, set) \ + msg_port_generic_clrsetbits(normal, port, reg, 0, set) +#define msg_port_clrsetbits(port, reg, clr, set) \ + msg_port_generic_clrsetbits(normal, port, reg, clr, set) + +#define msg_port_alt_clrbits(port, reg, clr) \ + msg_port_generic_clrsetbits(alt, port, reg, clr, 0) +#define msg_port_alt_setbits(port, reg, set) \ + msg_port_generic_clrsetbits(alt, port, reg, 0, set) +#define msg_port_alt_clrsetbits(port, reg, clr, set) \ + msg_port_generic_clrsetbits(alt, port, reg, clr, set) + +#define msg_port_io_clrbits(port, reg, clr) \ + msg_port_generic_clrsetbits(io, port, reg, clr, 0) +#define msg_port_io_setbits(port, reg, set) \ + msg_port_generic_clrsetbits(io, port, reg, 0, set) +#define msg_port_io_clrsetbits(port, reg, clr, set) \ + msg_port_generic_clrsetbits(io, port, reg, clr, set) + #endif /* __ASSEMBLY__ */ #endif /* _QUARK_MSG_PORT_H_ */ |