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soc/intel/common/block/smbus: Add smbus block read write functions 

Signed-off-by: Shelly Chang <Shelly_Chang@wiwynn.com>
Change-Id: Ib795f25abe5bbd95555b68af39c637d7c93aa819
Reviewed-on: https://review.coreboot.org/c/coreboot/+/64251
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This commit is contained in:
Shelly Chang 2022-05-11 13:04:14 +08:00 committed by Werner Zeh
parent 0a5d1d7aae
commit 8b02bd1f8d
1 changed files with 25 additions and 0 deletions
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25
src/soc/intel/common/block/smbus/smbus.c
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@ -33,9 +33,34 @@ 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_read_block(struct device *dev, u8 cmd, u8 bytes, u8 *buffer)
{
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, buffer);
}
static int lsmbus_write_block(struct device *dev, u8 cmd, u8 bytes, const u8 *buffer)
{
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, (u8 *)buffer);
}
static struct smbus_bus_operations lops_smbus_bus = {
.read_byte = lsmbus_read_byte,
.write_byte = lsmbus_write_byte,
.block_read = lsmbus_read_block,
.block_write = lsmbus_write_block,
};
static void pch_smbus_init(struct device *dev)