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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> #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): * See Analog Devices ADT7463 datasheet, Rev C (2004):
* http://www.analog.com/en/prod/0,,766_825_ADT7463,00.html * 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; int result;
/* Find the smbus controller (amd-8111) */ /* Find the SMBus controller (AMD-8111). */
smbus_dev = dev_find_device(0x1022, 0x746b, 0); smbus_dev = dev_find_device(0x1022, 0x746b, 0);
if (!smbus_dev) { 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.type = DEVICE_PATH_I2C;
path.u.i2c.device = 0x2d; path.u.i2c.device = 0x2d;
adt7463 = find_dev_path(smbus_dev->link, &path); adt7463 = find_dev_path(smbus_dev->link, &path);
if (!adt7463) { 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, 0x5c, 0xc2);
result = smbus_write_byte(adt7463, 0x5d, 0xc2); result = smbus_write_byte(adt7463, 0x5d, 0xc2);
result = smbus_write_byte(adt7463, 0x5e, 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 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); 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, 0x64, 0x40);
result = smbus_write_byte(adt7463, 0x65, 0x40); result = smbus_write_byte(adt7463, 0x65, 0x40);
result = smbus_write_byte(adt7463, 0x66, 0x40); result = smbus_write_byte(adt7463, 0x66, 0x40);
/* Set Tmin to 55C, rather than the default 90C. Above this temperature /* Set Tmin to 55C, rather than the default 90C. Above this temperature
the fans will start blowing harder as temperature increases 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, 0x67, 0x37);
result = smbus_write_byte(adt7463, 0x68, 0x37); result = smbus_write_byte(adt7463, 0x68, 0x37);
result = smbus_write_byte(adt7463, 0x69, 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, 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) (only in automatic mode, but supposedly even when hardware is
This is a failsafe measure. */ locked up). This is a failsafe measure. */
result = smbus_write_byte(adt7463, 0x6a, 0x46); result = smbus_write_byte(adt7463, 0x6a, 0x46);
result = smbus_write_byte(adt7463, 0x6b, 0x46); result = smbus_write_byte(adt7463, 0x6b, 0x46);
result = smbus_write_byte(adt7463, 0x6c, 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); 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); 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); result = smbus_write_byte(adt7463, 0x78, 0xf0);
printk_debug("adt7463 properly initilized"); printk_debug("ADT7463 properly initialized");
} }
static void dummy_noop(device_t dummy) static void dummy_noop(device_t dummy)
@ -100,10 +104,10 @@ static void dummy_noop(device_t dummy)
} }
static struct device_operations dummy_operations = { static struct device_operations dummy_operations = {
.read_resources = dummy_noop, .read_resources = dummy_noop,
.set_resources = dummy_noop, .set_resources = dummy_noop,
.enable_resources = dummy_noop, .enable_resources = dummy_noop,
.init = dummy_init, .init = dummy_init,
}; };
static unsigned int scan_root_bus(device_t root, unsigned int max) 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"); printk_debug("scan_root_bus ok\n");
/* The following is a little silly. We need a hook into the boot process *after* /* The following is a little silly. We need a hook into the boot
* the ADT7643 device has been initialized. So we create this dummy device, and we * process *after* the ADT7643 device has been initialized. So we
* put the ADT7643 s2881 specific settings in its init function, which gets called * 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. * as the last device to be initialized.
*/ */
link_i = root->links; link_i = root->links;
if (link_i >= MAX_LINKS) { if (link_i >= MAX_LINKS) {
printk_debug("reached MAX_LINKS, not configuring adt7463"); printk_debug("Reached MAX_LINKS, not configuring ADT7463");
return max; return max;
} }
root->link[link_i].link = link_i; 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 = { static struct device_operations mainboard_operations = {
.read_resources = root_dev_read_resources, .read_resources = root_dev_read_resources,
.set_resources = root_dev_set_resources, .set_resources = root_dev_set_resources,
.enable_resources = root_dev_enable_resources, .enable_resources = root_dev_enable_resources,
.init = root_dev_init, .init = root_dev_init,
.scan_bus = scan_root_bus, .scan_bus = scan_root_bus,
}; };
static void enable_dev(struct device *dev) static void enable_dev(struct device *dev)
@ -157,6 +162,6 @@ static void enable_dev(struct device *dev)
#if CONFIG_CHIP_NAME == 1 #if CONFIG_CHIP_NAME == 1
struct chip_operations mainboard_tyan_s2881_ops = { struct chip_operations mainboard_tyan_s2881_ops = {
CHIP_NAME("Tyan S2881 Mainboard") CHIP_NAME("Tyan S2881 Mainboard")
.enable_dev = enable_dev, .enable_dev = enable_dev,
}; };
#endif #endif