Always enable parent resources before child resources.

[coreboot.git] / src / mainboard / tyan / s2881 / mainboard.c

diff --git a/src/mainboard/tyan/s2881/mainboard.c b/src/mainboard/tyan/s2881/mainboard.c
index 6c4183922738b36696522a73a694fc48a54d9681..9da5fe8ff4926b4cecfc5467f50e56587f612382 100644 (file)
--- a/src/mainboard/tyan/s2881/mainboard.c
+++ b/src/mainboard/tyan/s2881/mainboard.c
@@ -21,133 +21,8 @@
  */
 
 #include <device/device.h>
-#include <console/console.h>
-#include <device/smbus.h>
 #include "chip.h"
 
-/**
- * Do some S2881-specific HWM initialization for the ADT7463 chip.
- *
- * See Analog Devices ADT7463 datasheet, Rev C (2004):
- * http://www.analog.com/en/prod/0,,766_825_ADT7463,00.html
- */
-static void adt7463_init(device_t dev)
-{
-       device_t smbus_dev, adt7463;
-       struct device_path path;
-       int result;
-
-       /* Find the SMBus controller (AMD-8111). */
-       smbus_dev = dev_find_device(0x1022, 0x746b, 0);
-       if (!smbus_dev)
-               die("SMBus controller not found\n");
-       printk(BIOS_DEBUG, "SMBus controller found\n");
-
-       /* Find the ADT7463 device. */
-       path.type = DEVICE_PATH_I2C;
-       path.i2c.device = 0x2d;
-       adt7463 = find_dev_path(smbus_dev->link_list, &path);
-       if (!adt7463)
-               die("ADT7463 not found\n");
-       printk(BIOS_DEBUG, "ADT7463 found\n");
-
-       /* Set all fans to 'Fastest Speed Calculated by All 3 Temperature
-        * Channels Controls PWMx'.
-        */
-       result = smbus_write_byte(adt7463, 0x5c, 0xc2);
-       result = smbus_write_byte(adt7463, 0x5d, 0xc2);
-       result = smbus_write_byte(adt7463, 0x5e, 0xc2);
-
-       /* Make sure that our fans never stop when temp. falls below Tmin,
-        * but rather keep going at minimum duty cycle (applies to automatic
-        * fan control mode only).
-        */
-       result = smbus_write_byte(adt7463, 0x62, 0xc0);
-
-       /* Set minimum PWM duty cycle to 25%, rather than the default 50%. */
-       result = smbus_write_byte(adt7463, 0x64, 0x40);
-       result = smbus_write_byte(adt7463, 0x65, 0x40);
-       result = smbus_write_byte(adt7463, 0x66, 0x40);
-
-       /* Set Tmin to 55C, rather than the default 90C. Above this temperature
-        * the fans will start blowing harder as temperature increases
-        * (automatic mode only).
-        */
-       result = smbus_write_byte(adt7463, 0x67, 0x37);
-       result = smbus_write_byte(adt7463, 0x68, 0x37);
-       result = smbus_write_byte(adt7463, 0x69, 0x37);
-
-       /* Set THERM limit to 70C, rather than the default 100C.
-        * The fans will kick in at 100% if the sensors reach this temperature,
-        * (only in automatic mode, but supposedly even when hardware is
-        * locked up). This is a failsafe measure.
-        */
-       result = smbus_write_byte(adt7463, 0x6a, 0x46);
-       result = smbus_write_byte(adt7463, 0x6b, 0x46);
-       result = smbus_write_byte(adt7463, 0x6c, 0x46);
-
-       /* Remote temperature 1 offset (LSB == 0.25C). */
-       result = smbus_write_byte(adt7463, 0x70, 0x02);
-
-       /* Remote temperature 2 offset (LSB == 0.25C). */
-       result = smbus_write_byte(adt7463, 0x72, 0x01);
-
-       /* Set TACH measurements to normal (1/second). */
-       result = smbus_write_byte(adt7463, 0x78, 0xf0);
-
-       printk(BIOS_DEBUG, "ADT7463 properly initialized\n");
-}
-
-static void dummy_noop(device_t dummy)
-{
-}
-
-static struct device_operations dummy_operations = {
-       .read_resources         = dummy_noop,
-       .set_resources          = dummy_noop,
-       .enable_resources       = dummy_noop,
-       .init                   = adt7463_init,
-};
-
-static unsigned int scan_root_bus(device_t root, unsigned int max)
-{
-       struct device_path path;
-       device_t dummy;
-
-       max = root_dev_scan_bus(root, max);
-
-       printk(BIOS_DEBUG, "scan_root_bus ok\n");
-
-       /* The following is a little silly. We need a hook into the boot
-        * process *after* the ADT7463 device has been initialized. So we
-        * create this dummy device, and we put the ADT7463 S2881 specific
-        * settings in its init function, which gets called
-        * as the last device to be initialized.
-        */
-
-       path.type = DEVICE_PATH_PNP;
-       path.pnp.port = 0;
-       path.pnp.device = 0;
-       dummy = alloc_dev(root->link_list, &path);
-       dummy->ops = &dummy_operations;
-
-       return max;
-}
-
-static struct device_operations mainboard_operations = {
-       .read_resources         = root_dev_read_resources,
-       .set_resources          = root_dev_set_resources,
-       .enable_resources       = root_dev_enable_resources,
-       .init                   = root_dev_init,
-       .scan_bus               = scan_root_bus,
-};
-
-static void enable_dev(struct device *dev)
-{
-       dev->ops = &mainboard_operations;
-}
-
 struct chip_operations mainboard_ops = {
        CHIP_NAME("Tyan S2881 Mainboard")
-       .enable_dev = enable_dev,
 };