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Minor cosmetics (trivial). 

Signed-off-by: Uwe Hermann <uwe@hermann-uwe.de>
Acked-by: Uwe Hermann <uwe@hermann-uwe.de>



git-svn-id: svn://svn.coreboot.org/coreboot/trunk@2675 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
This commit is contained in:
Uwe Hermann 2007-05-19 17:28:40 +00:00
parent 0196f82218
commit cbd53554df
1 changed files with 38 additions and 33 deletions
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71
src/mainboard/tyan/s2881/mainboard.c
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@ -26,7 +26,8 @@
#include <device/smbus.h>
/**
* Do some s2881-specific HWM initialization for the ADT7463 chip
* 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
*/
@ -38,61 +39,64 @@ static void dummy_init(device_t dev)
int result;
/* Find the smbus controller (amd-8111) */
/* Find the SMBus controller (AMD-8111). */
smbus_dev = dev_find_device(0x1022, 0x746b, 0);
if (!smbus_dev) {
die("SMBUS controller not found\n");
die("SMBus controller not found\n");
}
printk_debug("smbus controller found\n");
printk_debug("SMBus controller found\n");
/* Find the adt7463 device */
/* Find the ADT7463 device. */
path.type = DEVICE_PATH_I2C;
path.u.i2c.device = 0x2d;
adt7463 = find_dev_path(smbus_dev->link, &path);
if (!adt7463) {
die("adt7463 not found\n");
die("ADT7463 not found\n");
}
printk_debug("adt7463 found\n");
printk_debug("ADT7463 found\n");
/* Set all fans to 'Fastest Speed Calculated by All 3 Temperature Channels Controls PWMx.' */
/* 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,
/* 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) */
fan control mode only). */
result = smbus_write_byte(adt7463, 0x62, 0xc0);
/* Set minimum PWM duty cycle to 25%, rather than the default 50% */
/* 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) */
(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
/* 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. */
(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) */
/* Remote temperature 1 offset (LSB == 0.25C). */
result = smbus_write_byte(adt7463, 0x70, 0x02);
/* Remote temperature 2 offset (LSB == 0.25C) */
/* Remote temperature 2 offset (LSB == 0.25C). */
result = smbus_write_byte(adt7463, 0x72, 0x01);
/* set TACH measurements to normal (1/second) */
/* Set TACH measurements to normal (1/second). */
result = smbus_write_byte(adt7463, 0x78, 0xf0);
printk_debug("adt7463 properly initilized");
printk_debug("ADT7463 properly initialized");
}
static void dummy_noop(device_t dummy)
@ -100,10 +104,10 @@ 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 = dummy_init,
.read_resources = dummy_noop,
.set_resources = dummy_noop,
.enable_resources = dummy_noop,
.init = dummy_init,
};
static unsigned int scan_root_bus(device_t root, unsigned int max)
@ -116,15 +120,16 @@ static unsigned int scan_root_bus(device_t root, unsigned int max)
printk_debug("scan_root_bus ok\n");
/* The following is a little silly. We need a hook into the boot process *after*
* the ADT7643 device has been initialized. So we create this dummy device, and we
* put the ADT7643 s2881 specific settings in its init function, which gets called
/* The following is a little silly. We need a hook into the boot
* process *after* the ADT7643 device has been initialized. So we
* create this dummy device, and we put the ADT7643 S2881 specific
* settings in its init function, which gets called
* as the last device to be initialized.
*/
link_i = root->links;
if (link_i >= MAX_LINKS) {
printk_debug("reached MAX_LINKS, not configuring adt7463");
printk_debug("Reached MAX_LINKS, not configuring ADT7463");
return max;
}
root->link[link_i].link = link_i;
@ -142,11 +147,11 @@ static unsigned int scan_root_bus(device_t root, unsigned int 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,
.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)
@ -157,6 +162,6 @@ static void enable_dev(struct device *dev)
#if CONFIG_CHIP_NAME == 1
struct chip_operations mainboard_tyan_s2881_ops = {
CHIP_NAME("Tyan S2881 Mainboard")
.enable_dev = enable_dev,
.enable_dev = enable_dev,
};
#endif