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/* SPDX-License-Identifier: GPL-2.0-only */
#include <device/device.h>
#include <device/pci.h>
#include <device/pci_ids.h>
#include <device/smbus.h>
#include <arch/ioapic.h>
#include "hudson.h"
#include "smbus.c"
#define NMI_OFF 0
#define MAINBOARD_POWER_OFF 0
#define MAINBOARD_POWER_ON 1
/*
* HUDSON enables all USB controllers by default in SMBUS Control.
* HUDSON enables SATA by default in SMBUS Control.
*/
static void sm_init(struct device *dev)
{
register_new_ioapic_gsi0(VIO_APIC_VADDR);
}
static int lsmbus_recv_byte(struct device *dev)
{
u32 device;
struct resource *res;
struct bus *pbus;
device = dev->path.i2c.device;
pbus = get_pbus_smbus(dev);
res = find_resource(pbus->dev, 0x90);
return do_smbus_recv_byte(res->base, device);
}
static int lsmbus_send_byte(struct device *dev, u8 val)
{
u32 device;
struct resource *res;
struct bus *pbus;
device = dev->path.i2c.device;
pbus = get_pbus_smbus(dev);
res = find_resource(pbus->dev, 0x90);
return do_smbus_send_byte(res->base, device, val);
}
static int lsmbus_read_byte(struct device *dev, u8 address)
{
u32 device;
struct resource *res;
struct bus *pbus;
device = dev->path.i2c.device;
pbus = get_pbus_smbus(dev);
res = find_resource(pbus->dev, 0x90);
return do_smbus_read_byte(res->base, device, address);
}
static int lsmbus_write_byte(struct device *dev, u8 address, u8 val)
{
u32 device;
struct resource *res;
struct bus *pbus;
device = dev->path.i2c.device;
pbus = get_pbus_smbus(dev);
res = find_resource(pbus->dev, 0x90);
return do_smbus_write_byte(res->base, device, address, val);
}
static struct smbus_bus_operations lops_smbus_bus = {
.recv_byte = lsmbus_recv_byte,
.send_byte = lsmbus_send_byte,
.read_byte = lsmbus_read_byte,
.write_byte = lsmbus_write_byte,
};
static void hudson_sm_read_resources(struct device *dev)
{
}
static void hudson_sm_set_resources(struct device *dev)
{
}
static struct device_operations smbus_ops = {
.read_resources = hudson_sm_read_resources,
.set_resources = hudson_sm_set_resources,
.enable_resources = pci_dev_enable_resources,
.init = sm_init,
.scan_bus = scan_smbus,
.ops_pci = &pci_dev_ops_pci,
.ops_smbus_bus = &lops_smbus_bus,
};
static const struct pci_driver smbus_driver __pci_driver = {
.ops = &smbus_ops,
.vendor = PCI_VID_AMD,
/* PCI device ID is used on all discrete FCHs and Family 16h Models 00h-3Fh */
.device = PCI_DID_AMD_SB900_SM,
};
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