lk/linux-kernel-test
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

ssb: Add support for 8bit register access

Browse Source 
This adds support for 8bit wide register reads/writes.
This is needed in order to support the gigabit ethernet core.

Signed-off-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Michael Buesch
2008-02-20 19:08:10 +01:00
committed by John W. Linville
parent 004c872e78
commit ffc7689dda
4 changed files with 88 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

10
include/linux/ssb/ssb.h
View File

@ -72,8 +72,10 @@ struct ssb_device;
/* Lowlevel read/write operations on the device MMIO.
* Internal, don't use that outside of ssb. */
struct ssb_bus_ops {
u8 (*read8)(struct ssb_device *dev, u16 offset);
u16 (*read16)(struct ssb_device *dev, u16 offset);
u32 (*read32)(struct ssb_device *dev, u16 offset);
void (*write8)(struct ssb_device *dev, u16 offset, u8 value);
void (*write16)(struct ssb_device *dev, u16 offset, u16 value);
void (*write32)(struct ssb_device *dev, u16 offset, u32 value);
};
@ -344,6 +346,10 @@ void ssb_device_disable(struct ssb_device *dev, u32 core_specific_flags);
/* Device MMIO register read/write functions. */
static inline u8 ssb_read8(struct ssb_device *dev, u16 offset)
{
return dev->ops->read8(dev, offset);
}
static inline u16 ssb_read16(struct ssb_device *dev, u16 offset)
{
return dev->ops->read16(dev, offset);
@ -352,6 +358,10 @@ static inline u32 ssb_read32(struct ssb_device *dev, u16 offset)
{
return dev->ops->read32(dev, offset);
}
static inline void ssb_write8(struct ssb_device *dev, u16 offset, u8 value)
{
dev->ops->write8(dev, offset, value);
}
static inline void ssb_write16(struct ssb_device *dev, u16 offset, u16 value)
{
dev->ops->write16(dev, offset, value);