7fcd4d58ec
This renames bus to upstream and link_list to downstream. Signed-off-by: Arthur Heymans <arthur@aheymans.xyz> Change-Id: I80a81b6b8606e450ff180add9439481ec28c2420 Reviewed-on: https://review.coreboot.org/c/coreboot/+/78330 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
40 lines
1 KiB
C
40 lines
1 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
|
|
|
|
#include <assert.h>
|
|
#include <console/console.h>
|
|
#include <device/device.h>
|
|
#include <device/mdio.h>
|
|
#include <stddef.h>
|
|
|
|
const struct mdio_bus_operations *dev_get_mdio_ops(struct device *dev)
|
|
{
|
|
if (!dev || !dev->ops || !dev->ops->ops_mdio) {
|
|
printk(BIOS_ERR, "Could not get MDIO operations.\n");
|
|
return NULL;
|
|
}
|
|
|
|
return dev->ops->ops_mdio;
|
|
}
|
|
|
|
uint16_t mdio_read(struct device *dev, uint8_t offset)
|
|
{
|
|
const struct mdio_bus_operations *mdio_ops;
|
|
struct device *parent = dev->upstream->dev;
|
|
|
|
assert(dev->path.type == DEVICE_PATH_MDIO);
|
|
mdio_ops = dev_get_mdio_ops(parent);
|
|
if (!mdio_ops)
|
|
return 0;
|
|
return mdio_ops->read(parent, dev->path.mdio.addr, offset);
|
|
}
|
|
void mdio_write(struct device *dev, uint8_t offset, uint16_t val)
|
|
{
|
|
const struct mdio_bus_operations *mdio_ops;
|
|
struct device *parent = dev->upstream->dev;
|
|
|
|
assert(dev->path.type == DEVICE_PATH_MDIO);
|
|
mdio_ops = dev_get_mdio_ops(parent);
|
|
if (!mdio_ops)
|
|
return;
|
|
mdio_ops->write(parent, dev->path.mdio.addr, offset, val);
|
|
}
|