From 51d787a5cf8b65aff0800743437443e416845655 Mon Sep 17 00:00:00 2001 From: Shawn Nematbakhsh Date: Thu, 16 Jan 2014 17:52:21 -0800 Subject: rambi/baytrail: ACPI, GPIO, audio, misc updates rambi: Change RAM_ID GPIOs to GPIO_INPUT Reviewed-on: https://chromium-review.googlesource.com/182934 (cherry picked from commit 8afd981a091a3711ff3b55520fe73f57f7258cc0) baytrail: initialize rtc device Reviewed-on: https://chromium-review.googlesource.com/183051 (cherry picked from commit 1b80d71e4942310bd7e83c5565c6a06c30811821) baytrail: Set SOC power budget values for SdpProfile 2&3 Reviewed-on: https://chromium-review.googlesource.com/183101 (cherry picked from commit 87d49323cac4492c23f910bd7d43b83b3c8a9b55) baytrail: Set PMC PTPS register correctly Reviewed-on: https://chromium-review.googlesource.com/183280 (cherry picked from commit 1b520b577f2bf1b124db301f57421665b637f9ad) baytrail: update to version 809 microcode for c0 Reviewed-on: https://chromium-review.googlesource.com/183256 (cherry picked from commit 8ed0ef4c3bed1196256c691be5b80563b81baa5e) baytrail: Add a shared GNVS init function Reviewed-on: https://chromium-review.googlesource.com/183332 (cherry picked from commit 969dffda1d3d0adaee58d604b6eeea13a41a408c) baytrail: Add basic support for ACPI System Wake Source Reviewed-on: https://chromium-review.googlesource.com/183333 (cherry picked from commit a6b85ad950fb3a51d12cb91c869420b72b433619) baytrail: allow configuration of io hole size Reviewed-on: https://chromium-review.googlesource.com/183269 (cherry picked from commit 95a79aff57ec7bf4bcbf0207a017c9dab10c1919) baytrail: add in C0 stepping idenitification support. Reviewed-on: https://chromium-review.googlesource.com/183594 (cherry picked from commit 8ad02684b25f2870cdea334fbd081f0ef4467cd4) baytrail: add option for enabling PS2 mode Reviewed-on: https://chromium-review.googlesource.com/183595 (cherry picked from commit c92db75de5edc2ff745c1d40155e8b654ad3d49f) rambi: enable PS2 mode for VNN and VCC Reviewed-on: https://chromium-review.googlesource.com/183596 (cherry picked from commit 821ce0e72c93adb60404a4dc4ff8c0f6285cbdf9) baytrail: add config option for disabling slp_x stretching Reviewed-on: https://chromium-review.googlesource.com/183587 (cherry picked from commit f99804c2649bef436644dd300be2a595659ceece) rambi: disable slp_x stretching after sus fail Reviewed-on: https://chromium-review.googlesource.com/183588 (cherry picked from commit 753fadb6b9e90fc8d1c5092d50b20a2826d8d880) baytrail: ACPI_ENABLE_WAKE_SUS_GPIO macro for ACPI Reviewed-on: https://chromium-review.googlesource.com/183597 (cherry picked from commit 78775098a87f46b3bb66ade124753a195a5fa906) rambi: fix trackpad and touchscreen wake sources Reviewed-on: https://chromium-review.googlesource.com/183598 (cherry picked from commit 3022c82b020f4cafeb5be7978eef6045d1408cd5) baytrail: Add support for LPE device in ACPI mode Reviewed-on: https://chromium-review.googlesource.com/184006 (cherry picked from commit 398387ed75a63ce5a6033239ac24b5e1d77c8c9f) rambi: Add LPE GPIOs for Jack/Mic detect Reviewed-on: https://chromium-review.googlesource.com/184007 (cherry picked from commit edde584bb23bae1e703481e0f33a1f036373a578) rambi: Set TSRx passive threshold to 60C Reviewed-on: https://chromium-review.googlesource.com/184008 (cherry picked from commit 1d6aeb85fd1af64d5f7c564c6709a1cf6daad5ee) baytrail: DPTF: Add PPCC object for power limit information Reviewed-on: https://chromium-review.googlesource.com/184158 (cherry picked from commit e9c002c393d8b4904f9d57c5c8e7cf1dfce5049b) baytrail: DPTF: Add _CRT/_PSV objects for the CPU participant Reviewed-on: https://chromium-review.googlesource.com/184442 (cherry picked from commit e04c20962aede1aa9e6899bd3072daa82e8613bd) rambi: Move the CPU passive/critical threshold config to DPTF Reviewed-on: https://chromium-review.googlesource.com/184443 (cherry picked from commit dda468793143a6d288981b6d7e1cd5ef4514c2ac) baytrail: Fix XHCI controller reset on resume Reviewed-on: https://chromium-review.googlesource.com/184500 (cherry picked from commit 0457b5dce1860709fcce1407e42ae83023b463cd) baytrail: update lpe audio firmware location Reviewed-on: https://chromium-review.googlesource.com/184481 (cherry picked from commit 0472e6bd45cb069fbe4939c6de499e03c3707ba6) rambi: Put LPSS devices in ACPI mode Reviewed-on: https://chromium-review.googlesource.com/184530 (cherry picked from commit 52bec109860b95e2d6260d5433f33d0923a05ce1) baytrail: initialize HDA device and HDMI codec Reviewed-on: https://chromium-review.googlesource.com/184710 (cherry picked from commit 393198705034aa9c6935615dda6eba8b6bd5c961) baytrail: provide GPIO_ACPI_WAKE configuration Reviewed-on: https://chromium-review.googlesource.com/184718 (cherry picked from commit 44558c3346f5b96cf7b3dcb25a23b4e99855497b) rambi: configure wake pins as just wake sources Reviewed-on: https://chromium-review.googlesource.com/184719 (cherry picked from commit ee4620a90a131dce49f96b2da7f0a3bb70b13115) baytrail: I2C: Add config data to ACPI Device Reviewed-on: https://chromium-review.googlesource.com/184922 (cherry picked from commit ffb73af007e77faf497fbc3321c8163d18c24ec8) Squashed 28 commits for rambi and baytrail. Change-Id: If6060681bb5dc9432a54e6f3c6af9d8080debad8 Signed-off-by: Isaac Christensen Reviewed-on: http://review.coreboot.org/6916 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin --- src/soc/intel/baytrail/hda_verb.c | 253 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 253 insertions(+) create mode 100644 src/soc/intel/baytrail/hda_verb.c (limited to 'src/soc/intel/baytrail/hda_verb.c') diff --git a/src/soc/intel/baytrail/hda_verb.c b/src/soc/intel/baytrail/hda_verb.c new file mode 100644 index 0000000000..ae71b89770 --- /dev/null +++ b/src/soc/intel/baytrail/hda_verb.c @@ -0,0 +1,253 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2008 Advanced Micro Devices, Inc. + * Copyright (C) 2008-2009 coresystems GmbH + * Copyright (C) 2011 Google 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 +#include +#include +#include + +/** + * Set bits in a register and wait for status + */ +static int set_bits(u32 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; +} + +/** + * Probe for supported codecs + */ +int hda_codec_detect(u32 base) +{ + u8 reg8; + + /* Set Bit 0 to 1 to exit reset state (BAR + 0x8)[0] */ + if (set_bits(base + HDA_GCTL_REG, HDA_GCTL_CRST, HDA_GCTL_CRST) < 0) + goto no_codec; + + /* Write back the value once reset bit is set. */ + write16(base + HDA_GCAP_REG, read16(base + HDA_GCAP_REG)); + + /* Read in Codec location (BAR + 0xe)[2..0]*/ + reg8 = read8(base + HDA_STATESTS_REG); + 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 + HDA_GCTL_REG, HDA_GCTL_CRST, 0); + printk(BIOS_DEBUG, "HDA: No codec!\n"); + return 0; +} + +/** + * Wait 50usec for the codec to indicate it is ready + * no response would imply that the codec is non-operative + */ +static int hda_wait_for_ready(u32 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 hda_wait_for_valid(u32 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; +} + +/** + * Find a specific entry within a verb table + * + * @verb_table_bytes: verb table size in bytes + * @verb_table_data: verb table data + * @viddid: vendor/device to search for + * @verb_out: pointer to entry within table + * + * Returns size of the entry within the verb table, + * Returns 0 if the entry is not found + * + * The HDA verb table is composed of dwords. A set of 4 dwords is + * grouped together to form a "jack" descriptor. + * Bits 31:28 - Codec Address + * Bits 27:20 - NID + * Bits 19:8 - Verb ID + * Bits 7:0 - Payload + * + * coreboot groups different codec verb tables into a single table + * and prefixes each with a specific header consisting of 3 + * dword entries: + * 1 - Codec Vendor/Device ID + * 2 - Subsystem ID + * 3 - Number of jacks (groups of 4 dwords) for this codec + */ +static u32 hda_find_verb(u32 verb_table_bytes, + const u32 *verb_table_data, + u32 viddid, const u32 ** verb) +{ + int idx=0; + + while (idx < (verb_table_bytes / sizeof(u32))) { + u32 verb_size = 4 * verb_table_data[idx+2]; // in u32 + if (verb_table_data[idx] != viddid) { + idx += verb_size + 3; // skip verb + header + continue; + } + *verb = &verb_table_data[idx+3]; + return verb_size; + } + + /* Not all codecs need to load another verb */ + return 0; +} + +/** + * Write a supplied verb table + */ +int hda_codec_write(u32 base, u32 size, const u32 *data) +{ + int i; + + for (i = 0; i < size; i++) { + if (hda_wait_for_ready(base) < 0) + return -1; + + write32(base + HDA_IC_REG, data[i]); + + if (hda_wait_for_valid(base) < 0) + return -1; + } + + return 0; +} + +/** + * Initialize codec, then find the verb table and write it + */ +int hda_codec_init(u32 base, int addr, int verb_size, const u32 *verb_data) +{ + const u32 *verb; + u32 reg32, size; + int rc; + + printk(BIOS_DEBUG, "HDA: Initializing codec #%d\n", addr); + + if (!verb_size || !verb_data) { + printk(BIOS_DEBUG, "HDA: No verb list!\n"); + return -1; + } + + /* 1 */ + if (hda_wait_for_ready(base) < 0) { + printk(BIOS_DEBUG, " codec not ready.\n"); + return -1; + } + + reg32 = (addr << 28) | 0x000f0000; + write32(base + HDA_IC_REG, reg32); + + if (hda_wait_for_valid(base) < 0) { + printk(BIOS_DEBUG, " codec not valid.\n"); + return -1; + } + + /* 2 */ + reg32 = read32(base + HDA_IR_REG); + printk(BIOS_DEBUG, "HDA: codec viddid: %08x\n", reg32); + + size = hda_find_verb(verb_size, verb_data, reg32, &verb); + if (!size) { + printk(BIOS_DEBUG, "HDA: No verb table entry found\n"); + return -1; + } + + /* 3 */ + rc = hda_codec_write(base, size, verb); + + if (rc < 0) + printk(BIOS_DEBUG, "HDA: verb not loaded\n"); + else + printk(BIOS_DEBUG, "HDA: verb loaded.\n"); + + return rc; +} -- cgit v1.2.3