diff options
Diffstat (limited to 'src/southbridge/amd/sb600/sb600_hda.c')
| -rw-r--r-- | src/southbridge/amd/sb600/sb600_hda.c | 267 |
1 files changed, 267 insertions, 0 deletions
diff --git a/src/southbridge/amd/sb600/sb600_hda.c b/src/southbridge/amd/sb600/sb600_hda.c new file mode 100644 index 0000000000..1e21025efd --- /dev/null +++ b/src/southbridge/amd/sb600/sb600_hda.c @@ -0,0 +1,267 @@ +/* + * 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 <console/console.h> +#include <device/device.h> +#include <device/pci.h> +#include <device/pci_ids.h> +#include <device/pci_ops.h> +#include <arch/io.h> +#include <delay.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_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) +{ + device_t azalia_dev = dev_find_slot(0, PCI_DEVFN(0x14, 2)); + struct southbridge_amd_sb600_config *cfg = + (struct southbridge_amd_sb600_config *)azalia_dev->chip_info; + printk_debug("Dev=%s\n", dev_path(azalia_dev)); + printk_debug("Default viddid=%x\n", cfg->hda_viddid); + printk_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_debug("codec viddid: %08x\n", dword); + verb_size = find_verb(dword, &verb); + + if (!verb_size) { + printk_debug("No verb!\n"); + return; + } + + printk_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_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 */ + device_t 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_debug("base = %08x\n", base); + codec_mask = codec_detect(base); + + if (codec_mask) { + printk_debug("codec_mask = %02x\n", codec_mask); + codecs_init(base, codec_mask); + } +} + +static struct pci_operations lops_pci = { + .set_subsystem = pci_dev_set_subsystem, +}; + +static struct device_operations hda_audio_ops = { + .read_resources = pci_dev_read_resources, + .set_resources = pci_dev_set_resources, + .enable_resources = pci_dev_enable_resources, + /*.enable = sb600_enable, */ + .init = hda_init, + .scan_bus = 0, + .ops_pci = &lops_pci, +}; + +static struct pci_driver hdaaudio_driver __pci_driver = { + .ops = &hda_audio_ops, + .vendor = PCI_VENDOR_ID_ATI, + .device = PCI_DEVICE_ID_ATI_SB600_HDA, +}; |