diff options
| author | Angel Pons <th3fanbus@gmail.com> | 2020-12-05 20:25:27 +0100 |
|---|---|---|
| committer | Angel Pons <th3fanbus@gmail.com> | 2020-12-10 15:54:46 +0000 |
| commit | 244cf7d3a6d8db2a2ea5541815a0bd4e564c8195 (patch) | |
| tree | 95155cb287a1c204faef0a95960286c5ccd087b4 /src/southbridge/intel/lynxpoint | |
| parent | bb19d39487e4c71c29313e711bf3684d815263e6 (diff) | |
sb/intel/x/smbus.c: Add block read/write support
Copy and paste the i82801gx code onto all newer southbridges. This will
be factored out into common code in a follow-up.
Change-Id: Ic4b7d657865f61703e4310423c565786badf6f40
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/48363
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>
Diffstat (limited to 'src/southbridge/intel/lynxpoint')
| -rw-r--r-- | src/southbridge/intel/lynxpoint/smbus.c | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/src/southbridge/intel/lynxpoint/smbus.c b/src/southbridge/intel/lynxpoint/smbus.c index d0a621eea1..a173b4366d 100644 --- a/src/southbridge/intel/lynxpoint/smbus.c +++ b/src/southbridge/intel/lynxpoint/smbus.c @@ -51,9 +51,35 @@ static int lsmbus_write_byte(struct device *dev, u8 address, u8 data) return do_smbus_write_byte(res->base, device, address, data); } +static int lsmbus_block_write(struct device *dev, u8 cmd, u8 bytes, const u8 *buf) +{ + u16 device; + struct resource *res; + struct bus *pbus; + + device = dev->path.i2c.device; + pbus = get_pbus_smbus(dev); + res = find_resource(pbus->dev, PCI_BASE_ADDRESS_4); + return do_smbus_block_write(res->base, device, cmd, bytes, buf); +} + +static int lsmbus_block_read(struct device *dev, u8 cmd, u8 bytes, u8 *buf) +{ + u16 device; + struct resource *res; + struct bus *pbus; + + device = dev->path.i2c.device; + pbus = get_pbus_smbus(dev); + res = find_resource(pbus->dev, PCI_BASE_ADDRESS_4); + return do_smbus_block_read(res->base, device, cmd, bytes, buf); +} + static struct smbus_bus_operations lops_smbus_bus = { .read_byte = lsmbus_read_byte, .write_byte = lsmbus_write_byte, + .block_read = lsmbus_block_read, + .block_write = lsmbus_block_write, }; static void smbus_read_resources(struct device *dev) |