diff options
| author | Michael Buesch <mb@bu3sch.de> | 2008-02-20 19:08:10 +0100 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2008-02-29 15:37:26 -0500 |
| commit | ffc7689ddae5cbe12bde437ae0f2b386d568b5cd (patch) | |
| tree | 638e7dcf083c88cf45763953aa244504d357a220 /drivers/ssb/main.c | |
| parent | 004c872e78d433f84f0a5cd4db7a6c780c0946e1 (diff) | |
ssb: Add support for 8bit register access
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>
Diffstat (limited to 'drivers/ssb/main.c')
| -rw-r--r-- | drivers/ssb/main.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/drivers/ssb/main.c b/drivers/ssb/main.c index bedb2b4ee9d..8db40c4b86e 100644 --- a/drivers/ssb/main.c +++ b/drivers/ssb/main.c @@ -505,6 +505,14 @@ error: return err; } +static u8 ssb_ssb_read8(struct ssb_device *dev, u16 offset) +{ + struct ssb_bus *bus = dev->bus; + + offset += dev->core_index * SSB_CORE_SIZE; + return readb(bus->mmio + offset); +} + static u16 ssb_ssb_read16(struct ssb_device *dev, u16 offset) { struct ssb_bus *bus = dev->bus; @@ -521,6 +529,14 @@ static u32 ssb_ssb_read32(struct ssb_device *dev, u16 offset) return readl(bus->mmio + offset); } +static void ssb_ssb_write8(struct ssb_device *dev, u16 offset, u8 value) +{ + struct ssb_bus *bus = dev->bus; + + offset += dev->core_index * SSB_CORE_SIZE; + writeb(value, bus->mmio + offset); +} + static void ssb_ssb_write16(struct ssb_device *dev, u16 offset, u16 value) { struct ssb_bus *bus = dev->bus; @@ -539,8 +555,10 @@ static void ssb_ssb_write32(struct ssb_device *dev, u16 offset, u32 value) /* Ops for the plain SSB bus without a host-device (no PCI or PCMCIA). */ static const struct ssb_bus_ops ssb_ssb_ops = { + .read8 = ssb_ssb_read8, .read16 = ssb_ssb_read16, .read32 = ssb_ssb_read32, + .write8 = ssb_ssb_write8, .write16 = ssb_ssb_write16, .write32 = ssb_ssb_write32, }; |