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/*
* This file is part of the coreboot project.
*
* Copyright (C) 2007 AMD
* Written by Yinghai Lu <yinghailu@amd.com> for AMD.
* Copyright (C) 2010 coresystems GmbH
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#include <arch/io.h>
#include <console/console.h>
#include <device/device.h>
#include <device/pnp_def.h>
#include <device/smbus.h>
#include <stdlib.h>
#include <superio/smsc/dme1737/dme1737.h>
static void emc6d103_init(void)
{
size_t i;
int reg;
static const struct { uint8_t idx; uint8_t msk; uint8_t set; } script[] = {
{ 0x7f, 0x7f, 0x80 }, // INIT
{ 0x4f, 0x00, 0x64 }, // Diode 1 High 100°C
{ 0x53, 0x00, 0x64 }, // Diode 2 High 100°C (Sun firmware didn't set this)
{ 0x54, 0x00, 0x30 }, // Tach1 Minimum LSB
{ 0x55, 0x00, 0x2a }, // Tach1 Minimum MSB
{ 0x56, 0x00, 0x30 }, // Tach2 Minimum LSB
{ 0x57, 0x00, 0x2a }, // Tach2 Minimum MSB
{ 0x5c, 0x00, 0x02 }, // PWM 1 Config
{ 0x5d, 0x00, 0x42 }, // PWM 2 Config
{ 0x5f, 0x00, 0x8a }, // Zone 1 range, Fan 1 freq
{ 0x60, 0x00, 0xca }, // Zone 2 range, Fan 2 freq
{ 0x61, 0x00, 0x8a }, // Zone 3 range, Fan 3 freq
{ 0x62, 0x00, 0x67 }, // Min/Off, PWM 1 ramp rate
{ 0x63, 0x00, 0x70 }, // PWM 2, PWM 3 ramp rate
{ 0x64, 0x00, 0x59 }, // PWM1 Minimum Duty Cycle
{ 0x65, 0x00, 0x59 }, // PWM2 Minimum Duty Cycle
{ 0x67, 0x00, 0x47 }, // Zone 1 Low Temp Limit
{ 0x69, 0x00, 0x47 }, // Zone 3 Low Temp Limit
{ 0x80, 0x00, 0x07 }, // Interrupt Enable 2
{ 0x40, 0xfe, 0x01 }, // START
};
struct device * const dev = dev_find_slot_on_smbus(2, 0x2d);
if (dev == NULL)
printk(BIOS_WARNING, "EMC6D103 not found\n");
printk(BIOS_SPEW, "%s EMC6D103 id: %x %x\n", __func__, smbus_read_byte(dev, 0x3e), smbus_read_byte(dev, 0x3f));
for (i = 0; i < ARRAY_SIZE(script); i++) {
reg = smbus_read_byte(dev, script[i].idx);
if (reg < 0)
goto fail;
reg &= script[i].msk;
reg |= script[i].set;
reg = smbus_write_byte(dev, script[i].idx, reg & 0xff);
if (reg < 0)
goto fail;
}
return;
fail:
printk(BIOS_WARNING, "failed to initialize EMC6D103\n");
}
/* set up DME1737 runtime registers for FAN/PWM 5/6 */
static void dme1737_runtime_init(void)
{
size_t i;
uint8_t reg;
static const struct { uint8_t idx; uint8_t msk; uint8_t set; } rttab[] = {
{ 0x43, 0xf3, 0x08 },
{ 0x44, 0xf0, 0x08 },
{ 0x45, 0xf3, 0x08 },
{ 0x46, 0xf0, 0x08 },
};
/* find DME1737 runtime device (LDN 10) */
struct device * const dev = dev_find_slot_pnp(0x2e, DME1737_RT);
if (dev == NULL)
return;
struct resource * const res = find_resource(dev, PNP_IDX_IO0);
if (res == NULL)
return;
for (i = 0; i < ARRAY_SIZE(rttab); i++) {
reg = inb(res->base + rttab[i].idx);
reg &= rttab[i].msk;
reg |= rttab[i].set;
outb(reg, res->base + rttab[i].idx);
}
}
static void dme1737_hwm_init(void)
{
size_t i;
int reg;
static const struct { uint8_t idx; uint8_t msk; uint8_t set; } script[] = {
//{ 0x7f, 0x7f, 0x80 }, // INIT
{ 0x4f, 0x00, 0x32 }, // High
{ 0x54, 0x00, 0x30 }, // Tach0 Minimum LSB
{ 0x55, 0x00, 0x2a }, // Tach0 Minimum MSB
{ 0x56, 0x00, 0x30 }, // Tach1 Minimum LSB
{ 0x57, 0x00, 0x2a }, // Tach1 Minimum MSB
{ 0x5a, 0x00, 0x30 }, // Tach3 Minimum LSB
{ 0x5b, 0x00, 0x2a }, // Tach3 Minimum MSB
{ 0x5d, 0x00, 0x07 }, // PWM 1 Config: Zone 0
{ 0x5f, 0x0f, 0x50 }, // Zone 0 range, PWM freq
{ 0x62, 0x00, 0x67 }, // Ramp Rate
{ 0x63, 0x00, 0x80 }, // Ramp Rate
{ 0x65, 0x00, 0x0d }, // PWM 1 Minimum
{ 0x67, 0x00, 0x23 }, // Zone 0 Low
{ 0x6a, 0x00, 0x32 }, // Zone 0 High
{ 0x6c, 0x00, 0x5a }, // Zone 2 Abs
{ 0x80, 0x00, 0x17 }, // Interrupt Enable 2?
{ 0xa5, 0x00, 0x40 }, // PMW 4: 25% duty
{ 0xa6, 0x00, 0x40 }, // PWM 5: 25% duty
{ 0x40, 0xfe, 0x01 }, // START
};
struct device * const dev = dev_find_slot_on_smbus(2, 0x2e);
if (dev == NULL) {
printk(BIOS_INFO, "SMBus DME1737 not found\n");
return;
}
printk(BIOS_SPEW, "%s DME1737 id: %x %x\n", __func__, smbus_read_byte(dev, 0x3e), smbus_read_byte(dev, 0x3f));
for (i = 0; i < ARRAY_SIZE(script); i++) {
reg = smbus_read_byte(dev, script[i].idx);
if (reg < 0)
goto fail;
reg &= script[i].msk;
reg |= script[i].set;
reg = smbus_write_byte(dev, script[i].idx, reg & 0xff);
if (reg < 0)
goto fail;
}
return;
fail:
printk(BIOS_WARNING, "failed to initialize EMC6D103\n");
}
static void mainboard_init(device_t dev)
{
emc6d103_init();
dme1737_runtime_init();
dme1737_hwm_init();
printk(BIOS_DEBUG, "%s done\n", __func__);
}
static void mainboard_enable(device_t dev)
{
dev->ops->init = mainboard_init;
}
struct chip_operations mainboard_ops = {
.enable_dev = mainboard_enable,
};
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