1 #include <console/console.h>
2 #include <device/device.h>
3 #include <device/smbus.h>
4 #include <device/pci.h>
5 #include <device/pci_ids.h>
6 #include <device/pci_ops.h>
7 #include <cpu/x86/msr.h>
10 #define ADM1027_REG_CONFIG1 0x40
11 #define CFG1_STRT 0x01
12 #define CFG1_LOCK 0x02
14 #define CFG1_FSPD 0x08
16 #define CFT1_FSPDIS 0x20
17 #define CFG1_TODIS 0x40
19 #define ADM1027_REG_CONFIG2 0x73
20 #define ADM1027_REG_CONFIG3 0x78
22 static void adm1027_enable_monitoring(device_t dev)
26 result = smbus_read_byte(dev, ADM1027_REG_CONFIG1);
28 if (!(result & CFG1_RDY)) {
29 printk(BIOS_DEBUG, "ADM1027: monitoring not ready\n");
32 result = (result | CFG1_STRT);
33 result = smbus_write_byte(dev, ADM1027_REG_CONFIG1, result);
35 result = smbus_read_byte(dev, ADM1027_REG_CONFIG1);
36 if (!(result & CFG1_STRT)) {
37 printk(BIOS_DEBUG, "ADM1027: monitoring would not enable\n");
39 printk(BIOS_DEBUG, "ADM1027: monitoring enabled\n");
42 static void adm1027_init(device_t dev)
44 if (dev->enabled && dev->path.type == DEVICE_PATH_I2C) {
45 if (ops_smbus_bus(get_pbus_smbus(dev))) {
46 if (dev->bus->dev->path.type == DEVICE_PATH_I2C)
47 smbus_set_link(dev); // it is under mux
48 adm1027_enable_monitoring(dev);
54 static void adm1027_noop(device_t dummy)
58 static struct device_operations adm1027_operations = {
59 .read_resources = adm1027_noop,
60 .set_resources = adm1027_noop,
61 .enable_resources = adm1027_noop,
65 static void enable_dev(struct device *dev)
67 dev->ops = &adm1027_operations;
70 struct chip_operations drivers_i2c_adm1027_ops = {
72 .enable_dev = enable_dev,