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/*
* This file is part of the coreboot project.
*
* Copyright (C) 2008 Advanced Micro Devices, Inc.
*
* 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.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <types.h>
#include <lib.h>
#include <console.h>
#include <device/pci.h>
#include <msr.h>
#include <legacy.h>
#include <device/pci_ids.h>
#include <statictree.h>
#include <config.h>
#include "sb600.h"
static int set_bits(u8 * port, u32 mask, u32 val)
{
u32 dword;
int count;
val &= mask;
dword = readl(port);
dword &= ~mask;
dword |= val;
writel(dword, port);
count = 50;
do {
dword = readl(port);
dword &= mask;
udelay(100);
} while ((dword != val) && --count);
if (!count)
return -1;
udelay(540);
return 0;
}
static int codec_detect(u8 * base)
{
u32 dword;
/* 1 */
set_bits(base + 0x08, 1, 1);
/* 2 */
dword = readl(base + 0x0e);
dword |= 7;
writel(dword, base + 0x0e);
/* 3 */
set_bits(base + 0x08, 1, 0);
/* 4 */
set_bits(base + 0x08, 1, 1);
/* 5 */
dword = readl(base + 0xe);
dword &= 7;
/* 6 */
if (!dword) {
set_bits(base + 0x08, 1, 0);
printk(BIOS_DEBUG, "No codec!\n");
return 0;
}
return dword;
}
static u32 cim_verb_data[] = {
0x01471c10,
0x01471d40,
0x01471e01,
0x01471f01,
/* 1 */
0x01571c12,
0x01571d10,
0x01571e01,
0x01571f01,
/* 2 */
0x01671c11,
0x01671d60,
0x01671e01,
0x01671f01,
/* 3 */
0x01771c14,
0x01771d20,
0x01771e01,
0x01771f01,
/* 4 */
0x01871c30,
0x01871d90,
0x01871ea1,
0x01871f01,
/* 5 */
0x01971cf0,
0x01971d11,
0x01971e11,
0x01971f41,
/* 6 */
0x01a71c80,
0x01a71d30,
0x01a71e81,
0x01a71f01,
/* 7 */
0x01b71cf0,
0x01b71d11,
0x01b71e11,
0x01b71f41,
/* 8 */
0x01c71cf0,
0x01c71d11,
0x01c71e11,
0x01c71f41,
/* 9 */
0x01d71cf0,
0x01d71d11,
0x01d71e11,
0x01d71f41,
/* 10 */
0x01e71c50,
0x01e71d11,
0x01e71e44,
0x01e71f01,
/* 11 */
0x01f71c60,
0x01f71d61,
0x01f71ec4,
0x01f71f01,
};
static unsigned find_verb(u32 viddid, u32 ** verb)
{
struct device * azalia_dev = dev_find_slot(0, PCI_DEVFN(0x14, 2));
struct southbridge_amd_sb600_dts_config *cfg =
(struct southbridge_amd_sb600_config *)azalia_dev->chip_info;
printk(BIOS_DEBUG, "Dev=%s\n", dev_path(azalia_dev));
printk(BIOS_DEBUG, "Default viddid=%x\n", cfg->hda_viddid);
printk(BIOS_DEBUG, "Reading viddid=%x\n", viddid);
if (!cfg)
return 0;
if (viddid != cfg->hda_viddid)
return 0;
*verb = (u32 *) cim_verb_data;
return sizeof(cim_verb_data) / sizeof(u32);
}
static void codec_init(u8 * base, int addr)
{
u32 dword;
u32 *verb;
u32 verb_size;
int i;
/* 1 */
do {
dword = readl(base + 0x68);
} while (dword & 1);
dword = (addr << 28) | 0x000f0000;
writel(dword, base + 0x60);
do {
dword = readl(base + 0x68);
} while ((dword & 3) != 2);
dword = readl(base + 0x64);
/* 2 */
printk(BIOS_DEBUG, "codec viddid: %08x\n", dword);
verb_size = find_verb(dword, &verb);
if (!verb_size) {
printk(BIOS_DEBUG, "No verb!\n");
return;
}
printk(BIOS_DEBUG, "verb_size: %d\n", verb_size);
/* 3 */
for (i = 0; i < verb_size; i++) {
do {
dword = readl(base + 0x68);
} while (dword & 1);
writel(verb[i], base + 0x60);
do {
dword = readl(base + 0x68);
} while ((dword & 3) != 2);
}
printk(BIOS_DEBUG, "verb loaded!\n");
}
static void codecs_init(u8 * base, u32 codec_mask)
{
int i;
for (i = 2; i >= 0; i--) {
if (codec_mask & (1 << i))
codec_init(base, i);
}
}
static void hda_init(struct device *dev)
{
u8 *base;
struct resource *res;
u32 codec_mask;
/* SM Setting */
struct device * hda_dev;
hda_dev = dev_find_slot(0, PCI_DEVFN(0x14, 0));
/* Set routing pin */
pci_write_config32(dev, 0xf8, 0x0);
pci_write_config8(dev, 0xfc, 0xAA);
/* Set INTA */
pci_write_config8(dev, 0x63, 0x0);
/* Enable azalia, disable ac97 */
pm_iowrite(0x59, 0xB);
res = find_resource(dev, 0x10);
if (!res)
return;
base = (u8 *) ((u32)res->base);
printk(BIOS_DEBUG, "base = %08x\n", base);
codec_mask = codec_detect(base);
if (codec_mask) {
printk(BIOS_DEBUG, "codec_mask = %02x\n", codec_mask);
codecs_init(base, codec_mask);
}
}
static struct pci_operations lops_pci = {
.set_subsystem = pci_dev_set_subsystem,
};
struct device_operations sb600_hda = {
.id = {.type = DEVICE_ID_PCI,
{.pci = {.vendor = PCI_VENDOR_ID_ATI,
.device = PCI_DEVICE_ID_ATI_SB600_HDA}}},
.constructor = default_device_constructor,
.phase4_read_resources = pci_dev_read_resources,
.phase4_set_resources = pci_dev_set_resources,
.phase5_enable_resources = pci_dev_enable_resources,
.phase6_init = hda_init,
.ops_pci = &lops_pci
};
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