aboutsummaryrefslogtreecommitdiff
path: root/src/southbridge/intel/fsp_bd82x6x/azalia.c
diff options
context:
space:
mode:
Diffstat (limited to 'src/southbridge/intel/fsp_bd82x6x/azalia.c')
-rw-r--r--src/southbridge/intel/fsp_bd82x6x/azalia.c368
1 files changed, 0 insertions, 368 deletions
diff --git a/src/southbridge/intel/fsp_bd82x6x/azalia.c b/src/southbridge/intel/fsp_bd82x6x/azalia.c
deleted file mode 100644
index a15279692c..0000000000
--- a/src/southbridge/intel/fsp_bd82x6x/azalia.c
+++ /dev/null
@@ -1,368 +0,0 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright (C) 2008 Advanced Micro Devices, Inc.
- * Copyright (C) 2008-2009 coresystems GmbH
- * Copyright (C) 2011 The ChromiumOS Authors. All rights reserved.
- *
- * 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 <console/console.h>
-#include <device/device.h>
-#include <device/azalia_device.h>
-#include <device/pci.h>
-#include <device/pci_ids.h>
-#include <device/pci_ops.h>
-#include <arch/io.h>
-#include <delay.h>
-#include "pch.h"
-
-#define HDA_ICII_REG 0x68
-#define HDA_ICII_BUSY (1 << 0)
-#define HDA_ICII_VALID (1 << 1)
-
-typedef struct southbridge_intel_bd82x6x_config config_t;
-
-static int set_bits(void *port, u32 mask, u32 val)
-{
- u32 reg32;
- int count;
-
- /* Write (val & mask) to port */
- val &= mask;
- reg32 = read32(port);
- reg32 &= ~mask;
- reg32 |= val;
- write32(port, reg32);
-
- /* Wait for readback of register to
- * match what was just written to it
- */
- count = 50;
- do {
- /* Wait 1ms based on BKDG wait time */
- mdelay(1);
- reg32 = read32(port);
- reg32 &= mask;
- } while ((reg32 != val) && --count);
-
- /* Timeout occurred */
- if (!count)
- return -1;
- return 0;
-}
-
-static int codec_detect(u8 *base)
-{
- u8 reg8;
-
- /* Set Bit 0 to 1 to exit reset state (BAR + 0x8)[0] */
- if (set_bits(base + 0x08, 1, 1) == -1)
- goto no_codec;
-
- /* Write back the value once reset bit is set. */
- write16(base + 0x0,
- read16(base + 0x0));
-
- /* Read in Codec location (BAR + 0xe)[2..0]*/
- reg8 = read8(base + 0xe);
- reg8 &= 0x0f;
- if (!reg8)
- goto no_codec;
-
- return reg8;
-
-no_codec:
- /* Codec Not found */
- /* Put HDA back in reset (BAR + 0x8) [0] */
- set_bits(base + 0x08, 1, 0);
- printk(BIOS_DEBUG, "Azalia: No codec!\n");
- return 0;
-}
-
-static u32 find_verb(struct device *dev, u32 viddid, const u32 ** verb)
-{
- int idx=0;
-
- while (idx < (cim_verb_data_size / sizeof(u32))) {
- u32 verb_size = 4 * cim_verb_data[idx+2]; // in u32
- if (cim_verb_data[idx] != viddid) {
- idx += verb_size + 3; // skip verb + header
- continue;
- }
- *verb = &cim_verb_data[idx+3];
- return verb_size;
- }
-
- /* Not all codecs need to load another verb */
- return 0;
-}
-
-/**
- * Wait 50usec for the codec to indicate it is ready
- * no response would imply that the codec is non-operative
- */
-
-static int wait_for_ready(u8 *base)
-{
- /* Use a 50 usec timeout - the Linux kernel uses the
- * same duration */
-
- int timeout = 50;
-
- while (timeout--) {
- u32 reg32 = read32(base + HDA_ICII_REG);
- if (!(reg32 & HDA_ICII_BUSY))
- return 0;
- udelay(1);
- }
-
- return -1;
-}
-
-/**
- * Wait 50usec for the codec to indicate that it accepted
- * the previous command. No response would imply that the code
- * is non-operative
- */
-
-static int wait_for_valid(u8 *base)
-{
- u32 reg32;
-
- /* Send the verb to the codec */
- reg32 = read32(base + HDA_ICII_REG);
- reg32 |= HDA_ICII_BUSY | HDA_ICII_VALID;
- write32(base + HDA_ICII_REG, reg32);
-
- /* Use a 50 usec timeout - the Linux kernel uses the
- * same duration */
-
- int timeout = 50;
- while (timeout--) {
- reg32 = read32(base + HDA_ICII_REG);
- if ((reg32 & (HDA_ICII_VALID | HDA_ICII_BUSY)) ==
- HDA_ICII_VALID)
- return 0;
- udelay(1);
- }
-
- return -1;
-}
-
-static void codec_init(struct device *dev, u8 *base, int addr)
-{
- u32 reg32;
- const u32 *verb;
- u32 verb_size;
- int i;
-
- printk(BIOS_DEBUG, "Azalia: Initializing codec #%d\n", addr);
-
- /* 1 */
- if (wait_for_ready(base) == -1) {
- printk(BIOS_DEBUG, " codec not ready.\n");
- return;
- }
-
- reg32 = (addr << 28) | 0x000f0000;
- write32(base + 0x60, reg32);
-
- if (wait_for_valid(base) == -1) {
- printk(BIOS_DEBUG, " codec not valid.\n");
- return;
- }
-
- reg32 = read32(base + 0x64);
-
- /* 2 */
- printk(BIOS_DEBUG, "Azalia: codec viddid: %08x\n", reg32);
- verb_size = find_verb(dev, reg32, &verb);
-
- if (!verb_size) {
- printk(BIOS_DEBUG, "Azalia: No verb!\n");
- return;
- }
- printk(BIOS_DEBUG, "Azalia: verb_size: %d\n", verb_size);
-
- /* 3 */
- for (i = 0; i < verb_size; i++) {
- if (wait_for_ready(base) == -1)
- return;
-
- write32(base + 0x60, verb[i]);
-
- if (wait_for_valid(base) == -1)
- return;
- }
- printk(BIOS_DEBUG, "Azalia: verb loaded.\n");
-}
-
-static void codecs_init(struct device *dev, u8 *base, u32 codec_mask)
-{
- int i;
- for (i = 3; i >= 0; i--) {
- if (codec_mask & (1 << i))
- codec_init(dev, base, i);
- }
-
- for (i = 0; i < pc_beep_verbs_size; i++) {
- if (wait_for_ready(base) == -1)
- return;
-
- write32(base + 0x60, pc_beep_verbs[i]);
-
- if (wait_for_valid(base) == -1)
- return;
- }
-}
-
-static void azalia_init(struct device *dev)
-{
- u8 *base;
- struct resource *res;
- u32 codec_mask;
- u8 reg8;
- u16 reg16;
- u32 reg32;
-
- /* Find base address */
- res = find_resource(dev, PCI_BASE_ADDRESS_0);
- if (!res)
- return;
-
- // NOTE this will break as soon as the Azalia get's a bar above
- // 4G. Is there anything we can do about it?
- base = res2mmio(res, 0, 0);
- printk(BIOS_DEBUG, "Azalia: base = %08x\n", (u32)base);
-
- if (RCBA32(0x2030) & (1 << 31)) {
- reg32 = pci_read_config32(dev, 0x120);
- reg32 &= 0xf8ffff01;
- reg32 |= (1 << 24); // 25 for server
- reg32 |= RCBA32(0x2030) & 0xfe;
- pci_write_config32(dev, 0x120, reg32);
-
- reg16 = pci_read_config16(dev, 0x78);
- reg16 &= ~(1 << 11);
- pci_write_config16(dev, 0x78, reg16);
- } else
- printk(BIOS_DEBUG, "Azalia: V1CTL disabled.\n");
-
- reg32 = pci_read_config32(dev, 0x114);
- reg32 &= ~0xfe;
- pci_write_config32(dev, 0x114, reg32);
-
- // Set VCi enable bit
- if (pci_read_config32(dev, 0x120) & ((1 << 24) |
- (1 << 25) | (1 << 26))) {
- reg32 = pci_read_config32(dev, 0x120);
- reg32 |= (1 << 31);
- pci_write_config32(dev, 0x120, reg32);
- }
-
- // Enable HDMI codec:
- reg32 = pci_read_config32(dev, 0xc4);
- reg32 |= (1 << 1);
- pci_write_config32(dev, 0xc4, reg32);
-
- reg8 = pci_read_config8(dev, 0x43);
- reg8 |= (1 << 6);
- pci_write_config8(dev, 0x43, reg8);
-
- /* Additional programming steps */
- reg32 = pci_read_config32(dev, 0xc4);
- reg32 |= (1 << 13) | (1 << 10);
- pci_write_config32(dev, 0xc4, reg32);
-
- reg32 = pci_read_config32(dev, 0xd0);
- reg32 &= ~(1 << 31);
- pci_write_config32(dev, 0xd0, reg32);
-
- /* Additional programming steps */
- reg32 = pci_read_config32(dev, 0xc4);
- reg32 |= (1 << 13);
- pci_write_config32(dev, 0xc4, reg32);
-
- reg32 = pci_read_config32(dev, 0xc4);
- reg32 |= (1 << 10);
- pci_write_config32(dev, 0xc4, reg32);
-
- reg32 = pci_read_config32(dev, 0xd0);
- reg32 &= ~(1 << 31);
- pci_write_config32(dev, 0xd0, reg32);
-
- /* Set Bus Master */
- reg32 = pci_read_config32(dev, PCI_COMMAND);
- pci_write_config32(dev, PCI_COMMAND, reg32 | PCI_COMMAND_MASTER);
-
- pci_write_config8(dev, 0x3c, 0x0a); // unused?
-
- /* Codec Initialization Programming Sequence */
- reg32 = read32(base + 0x08);
- reg32 |= (1 << 0);
- write32(base + 0x08, reg32);
-
- //
- reg8 = pci_read_config8(dev, 0x40); // Audio Control
- reg8 |= 1; // Select Azalia mode. This needs to be controlled via devicetree.cb
- pci_write_config8(dev, 0x40, reg8);
-
- reg8 = pci_read_config8(dev, 0x4d); // Docking Status
- reg8 &= ~(1 << 7); // Docking not supported
- pci_write_config8(dev, 0x4d, reg8);
-
- codec_mask = codec_detect(base);
-
- if (codec_mask) {
- printk(BIOS_DEBUG, "Azalia: codec_mask = %02x\n", codec_mask);
- codecs_init(dev, base, codec_mask);
- }
-
- /* Enable dynamic clock gating */
- reg8 = pci_read_config8(dev, 0x43);
- reg8 &= ~0x7;
- reg8 |= (1 << 2) | (1 << 0);
- pci_write_config8(dev, 0x43, reg8);
-}
-
-static void azalia_set_subsystem(struct device *dev, unsigned vendor,
- unsigned device)
-{
- if (!vendor || !device) {
- pci_write_config32(dev, PCI_SUBSYSTEM_VENDOR_ID,
- pci_read_config32(dev, PCI_VENDOR_ID));
- } else {
- pci_write_config32(dev, PCI_SUBSYSTEM_VENDOR_ID,
- ((device & 0xffff) << 16) | (vendor & 0xffff));
- }
-}
-
-static struct pci_operations azalia_pci_ops = {
- .set_subsystem = azalia_set_subsystem,
-};
-
-static struct device_operations azalia_ops = {
- .read_resources = pci_dev_read_resources,
- .set_resources = pci_dev_set_resources,
- .enable_resources = pci_dev_enable_resources,
- .init = azalia_init,
- .scan_bus = 0,
- .ops_pci = &azalia_pci_ops,
-};
-
-static const unsigned short pci_device_ids[] = { 0x1c20, 0x1e20, 0 };
-
-static const struct pci_driver pch_azalia __pci_driver = {
- .ops = &azalia_ops,
- .vendor = PCI_VENDOR_ID_INTEL,
- .devices = pci_device_ids,
-};
generated by cgit v1.2.3 (git 2.39.1) at 2024-07-02 22:50:55 +0000