diff options
| -rw-r--r-- | src/mainboard/google/falco/acpi/haswell_pci_irqs.asl | 4 | ||||
| -rw-r--r-- | src/mainboard/google/falco/devicetree.cb | 1 | ||||
| -rw-r--r-- | src/mainboard/google/peppy/acpi/haswell_pci_irqs.asl | 4 | ||||
| -rw-r--r-- | src/mainboard/google/peppy/devicetree.cb | 1 | ||||
| -rw-r--r-- | src/mainboard/google/slippy/acpi/haswell_pci_irqs.asl | 4 | ||||
| -rw-r--r-- | src/mainboard/google/slippy/devicetree.cb | 1 | ||||
| -rw-r--r-- | src/northbridge/intel/haswell/Makefile.inc | 1 | ||||
| -rw-r--r-- | src/northbridge/intel/haswell/early_init.c | 5 | ||||
| -rw-r--r-- | src/northbridge/intel/haswell/haswell.h | 14 | ||||
| -rw-r--r-- | src/northbridge/intel/haswell/minihd.c | 140 | ||||
| -rw-r--r-- | src/southbridge/intel/lynxpoint/Makefile.inc | 1 | ||||
| -rw-r--r-- | src/southbridge/intel/lynxpoint/azalia.c | 325 | ||||
| -rw-r--r-- | src/southbridge/intel/lynxpoint/hda_verb.c | 254 | ||||
| -rw-r--r-- | src/southbridge/intel/lynxpoint/hda_verb.h | 37 |
14 files changed, 532 insertions, 260 deletions
diff --git a/src/mainboard/google/falco/acpi/haswell_pci_irqs.asl b/src/mainboard/google/falco/acpi/haswell_pci_irqs.asl index 82a2eba..aa4a862 100644 --- a/src/mainboard/google/falco/acpi/haswell_pci_irqs.asl +++ b/src/mainboard/google/falco/acpi/haswell_pci_irqs.asl @@ -26,6 +26,8 @@ Method(_PRT) Return (Package() { // Onboard graphics (IGD) 0:2.0 Package() { 0x0002ffff, 0, 0, 16 }, + // Mini-HD Audio 0:3.0 + Package() { 0x0003ffff, 0, 0, 16 }, // High Definition Audio 0:1b.0 Package() { 0x001bffff, 0, 0, 22 }, // PCIe Root Ports 0:1c.x @@ -54,6 +56,8 @@ Method(_PRT) Return (Package() { // Onboard graphics (IGD) 0:2.0 Package() { 0x0002ffff, 0, \_SB.PCI0.LPCB.LNKA, 0 }, + // Mini-HD Audio 0:3.0 + Package() { 0x0003ffff, 0, \_SB.PCI0.LPCB.LNKA, 0 }, // High Definition Audio 0:1b.0 Package() { 0x001bffff, 0, \_SB.PCI0.LPCB.LNKG, 0 }, // PCIe Root Ports 0:1c.x diff --git a/src/mainboard/google/falco/devicetree.cb b/src/mainboard/google/falco/devicetree.cb index 21858e7..cdd5a2e 100644 --- a/src/mainboard/google/falco/devicetree.cb +++ b/src/mainboard/google/falco/devicetree.cb @@ -42,6 +42,7 @@ chip northbridge/intel/haswell device domain 0 on device pci 00.0 on end # host bridge device pci 02.0 on end # vga controller + device pci 03.0 on end # mini-hd audio chip southbridge/intel/lynxpoint register "pirqa_routing" = "0x8b" diff --git a/src/mainboard/google/peppy/acpi/haswell_pci_irqs.asl b/src/mainboard/google/peppy/acpi/haswell_pci_irqs.asl index 82a2eba..aa4a862 100644 --- a/src/mainboard/google/peppy/acpi/haswell_pci_irqs.asl +++ b/src/mainboard/google/peppy/acpi/haswell_pci_irqs.asl @@ -26,6 +26,8 @@ Method(_PRT) Return (Package() { // Onboard graphics (IGD) 0:2.0 Package() { 0x0002ffff, 0, 0, 16 }, + // Mini-HD Audio 0:3.0 + Package() { 0x0003ffff, 0, 0, 16 }, // High Definition Audio 0:1b.0 Package() { 0x001bffff, 0, 0, 22 }, // PCIe Root Ports 0:1c.x @@ -54,6 +56,8 @@ Method(_PRT) Return (Package() { // Onboard graphics (IGD) 0:2.0 Package() { 0x0002ffff, 0, \_SB.PCI0.LPCB.LNKA, 0 }, + // Mini-HD Audio 0:3.0 + Package() { 0x0003ffff, 0, \_SB.PCI0.LPCB.LNKA, 0 }, // High Definition Audio 0:1b.0 Package() { 0x001bffff, 0, \_SB.PCI0.LPCB.LNKG, 0 }, // PCIe Root Ports 0:1c.x diff --git a/src/mainboard/google/peppy/devicetree.cb b/src/mainboard/google/peppy/devicetree.cb index b9bc47f..909a347 100644 --- a/src/mainboard/google/peppy/devicetree.cb +++ b/src/mainboard/google/peppy/devicetree.cb @@ -42,6 +42,7 @@ chip northbridge/intel/haswell device domain 0 on device pci 00.0 on end # host bridge device pci 02.0 on end # vga controller + device pci 03.0 on end # mini-hd audio chip southbridge/intel/lynxpoint register "pirqa_routing" = "0x8b" diff --git a/src/mainboard/google/slippy/acpi/haswell_pci_irqs.asl b/src/mainboard/google/slippy/acpi/haswell_pci_irqs.asl index 82a2eba..aa4a862 100644 --- a/src/mainboard/google/slippy/acpi/haswell_pci_irqs.asl +++ b/src/mainboard/google/slippy/acpi/haswell_pci_irqs.asl @@ -26,6 +26,8 @@ Method(_PRT) Return (Package() { // Onboard graphics (IGD) 0:2.0 Package() { 0x0002ffff, 0, 0, 16 }, + // Mini-HD Audio 0:3.0 + Package() { 0x0003ffff, 0, 0, 16 }, // High Definition Audio 0:1b.0 Package() { 0x001bffff, 0, 0, 22 }, // PCIe Root Ports 0:1c.x @@ -54,6 +56,8 @@ Method(_PRT) Return (Package() { // Onboard graphics (IGD) 0:2.0 Package() { 0x0002ffff, 0, \_SB.PCI0.LPCB.LNKA, 0 }, + // Mini-HD Audio 0:3.0 + Package() { 0x0003ffff, 0, \_SB.PCI0.LPCB.LNKA, 0 }, // High Definition Audio 0:1b.0 Package() { 0x001bffff, 0, \_SB.PCI0.LPCB.LNKG, 0 }, // PCIe Root Ports 0:1c.x diff --git a/src/mainboard/google/slippy/devicetree.cb b/src/mainboard/google/slippy/devicetree.cb index b9bc47f..909a347 100644 --- a/src/mainboard/google/slippy/devicetree.cb +++ b/src/mainboard/google/slippy/devicetree.cb @@ -42,6 +42,7 @@ chip northbridge/intel/haswell device domain 0 on device pci 00.0 on end # host bridge device pci 02.0 on end # vga controller + device pci 03.0 on end # mini-hd audio chip southbridge/intel/lynxpoint register "pirqa_routing" = "0x8b" diff --git a/src/northbridge/intel/haswell/Makefile.inc b/src/northbridge/intel/haswell/Makefile.inc index b2ac85e..04b0d2f 100644 --- a/src/northbridge/intel/haswell/Makefile.inc +++ b/src/northbridge/intel/haswell/Makefile.inc @@ -22,6 +22,7 @@ ramstage-y += gma.c ramstage-$(CONFIG_GENERATE_ACPI_TABLES) += acpi.c ramstage-y += mrccache.c +ramstage-y += minihd.c romstage-y += raminit.c romstage-y += mrccache.c diff --git a/src/northbridge/intel/haswell/early_init.c b/src/northbridge/intel/haswell/early_init.c index 5b36418..7f9f187 100644 --- a/src/northbridge/intel/haswell/early_init.c +++ b/src/northbridge/intel/haswell/early_init.c @@ -103,8 +103,9 @@ void haswell_early_initialization(int chipset_type) /* Setup all BARs required for early PCIe and raminit */ haswell_setup_bars(); - /* Device Enable */ - pci_write_config32(PCI_DEV(0, 0, 0), DEVEN, DEVEN_HOST | DEVEN_IGD); + /* Device Enable: IGD and Mini-HD Audio */ + pci_write_config32(PCI_DEV(0, 0, 0), DEVEN, + DEVEN_D0EN | DEVEN_D2EN | DEVEN_D3EN); haswell_setup_graphics(); } diff --git a/src/northbridge/intel/haswell/haswell.h b/src/northbridge/intel/haswell/haswell.h index c9e10ed..bcd22d1 100644 --- a/src/northbridge/intel/haswell/haswell.h +++ b/src/northbridge/intel/haswell/haswell.h @@ -50,12 +50,14 @@ #define GGC 0x50 /* GMCH Graphics Control */ #define DEVEN 0x54 /* Device Enable */ -#define DEVEN_PEG60 (1 << 13) -#define DEVEN_IGD (1 << 4) -#define DEVEN_PEG10 (1 << 3) -#define DEVEN_PEG11 (1 << 2) -#define DEVEN_PEG12 (1 << 1) -#define DEVEN_HOST (1 << 0) +#define DEVEN_D7EN (1 << 14) +#define DEVEN_D4EN (1 << 7) +#define DEVEN_D3EN (1 << 5) +#define DEVEN_D2EN (1 << 4) +#define DEVEN_D1F0EN (1 << 3) +#define DEVEN_D1F1EN (1 << 2) +#define DEVEN_D1F2EN (1 << 1) +#define DEVEN_D0EN (1 << 0) #define PAM0 0x80 #define PAM1 0x81 diff --git a/src/northbridge/intel/haswell/minihd.c b/src/northbridge/intel/haswell/minihd.c new file mode 100644 index 0000000..cef6126 --- /dev/null +++ b/src/northbridge/intel/haswell/minihd.c @@ -0,0 +1,140 @@ +/* + * 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. + * + * 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 <stdlib.h> +#include <southbridge/intel/lynxpoint/hda_verb.h> + +static const u32 minihd_verb_table[] = { + /* coreboot specific header */ + 0x80862807, // Codec Vendor / Device ID: Intel Haswell Mini-HD + 0x00000000, // Subsystem ID + 0x00000004, // Number of jacks + + /* Enable 3rd Pin and Converter Widget */ + 0x00878101, + + /* Pin Widget 5 - PORT B */ + 0x00571C10, + 0x00571D00, + 0x00571E56, + 0x00571F18, + + /* Pin Widget 6 - PORT C */ + 0x00671C20, + 0x00671D00, + 0x00671E56, + 0x00671F18, + + /* Pin Widget 7 - PORT D */ + 0x00771C30, + 0x00771D00, + 0x00771E56, + 0x00771F18, + + /* Disable 3rd Pin and Converter Widget */ + 0x00878100, + + /* Dummy entries to fill out the table */ + 0x00878100, + 0x00878100, +}; + +static void minihd_init(struct device *dev) +{ + struct resource *res; + u32 base, reg32; + int codec_mask, i; + + /* Find base address */ + res = find_resource(dev, PCI_BASE_ADDRESS_0); + if (!res) + return; + + base = (u32)res->base; + printk(BIOS_DEBUG, "Mini-HD: base = %08x\n", (u32)base); + + /* Set Bus Master */ + reg32 = pci_read_config32(dev, PCI_COMMAND); + pci_write_config32(dev, PCI_COMMAND, reg32 | PCI_COMMAND_MASTER); + + /* Mini-HD configuration */ + reg32 = read32(base + 0x100c); + reg32 &= 0xfffc0000; + reg32 |= 0x4; + write32(base + 0x100c, reg32); + + reg32 = read32(base + 0x1010); + reg32 &= 0xfffc0000; + reg32 |= 0x4b; + write32(base + 0x1010, reg32); + + /* Init the codec and write the verb table */ + codec_mask = hda_codec_detect(base); + + if (codec_mask) { + for (i = 3; i >= 0; i--) { + if (codec_mask & (1 << i)) + hda_codec_init(base, i, + sizeof(minihd_verb_table), + minihd_verb_table); + } + } +} + +static void minihd_set_subsystem(device_t 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 minihd_pci_ops = { + .set_subsystem = minihd_set_subsystem, +}; + +static struct device_operations minihd_ops = { + .read_resources = pci_dev_read_resources, + .set_resources = pci_dev_set_resources, + .enable_resources = pci_dev_enable_resources, + .init = minihd_init, + .scan_bus = 0, + .ops_pci = &minihd_pci_ops, +}; + +static const unsigned short pci_device_ids[] = { 0x0a0c, 0 }; + +static const struct pci_driver haswell_minihd __pci_driver = { + .ops = &minihd_ops, + .vendor = PCI_VENDOR_ID_INTEL, + .devices = pci_device_ids, +}; + diff --git a/src/southbridge/intel/lynxpoint/Makefile.inc b/src/southbridge/intel/lynxpoint/Makefile.inc index 90419d6..92e1c00 100644 --- a/src/southbridge/intel/lynxpoint/Makefile.inc +++ b/src/southbridge/intel/lynxpoint/Makefile.inc @@ -33,6 +33,7 @@ ramstage-y += usb_ehci.c ramstage-y += usb_xhci.c ramstage-y += me_9.x.c ramstage-y += smbus.c +ramstage-y += hda_verb.c ramstage-$(CONFIG_INTEL_LYNXPOINT_LP) += serialio.c ramstage-y += rcba.c diff --git a/src/southbridge/intel/lynxpoint/azalia.c b/src/southbridge/intel/lynxpoint/azalia.c index ee12042..b63672d 100644 --- a/src/southbridge/intel/lynxpoint/azalia.c +++ b/src/southbridge/intel/lynxpoint/azalia.c @@ -27,240 +27,47 @@ #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(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; -} - -static int codec_detect(u32 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; -} +#include "hda_verb.h" const u32 * cim_verb_data = NULL; u32 cim_verb_data_size = 0; const u32 * pc_beep_verbs = NULL; u32 pc_beep_verbs_size = 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(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 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; -} - -static void codec_init(struct device *dev, u32 base, int addr) +static void codecs_init(u32 base, u32 codec_mask) { - 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, u32 base, u32 codec_mask) -{ - int i; + /* Can support up to 4 codecs */ for (i = 3; i >= 0; i--) { if (codec_mask & (1 << i)) - codec_init(dev, base, i); + hda_codec_init(base, i, + cim_verb_data_size, + cim_verb_data); } - 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; - } + if (pc_beep_verbs_size && pc_beep_verbs) + hda_codec_write(base, pc_beep_verbs_size, pc_beep_verbs); } -static void azalia_init(struct device *dev) +static void azalia_pch_init(struct device *dev, u32 base) { - u32 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 = (u32)res->base; - 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 |= (1 << 25); 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); + if (!pch_is_lp()) { + reg16 = pci_read_config16(dev, 0x78); + reg16 &= ~(1 << 11); + pci_write_config16(dev, 0x78, reg16); + } } else printk(BIOS_DEBUG, "Azalia: V1CTL disabled.\n"); @@ -272,73 +79,87 @@ static void azalia_init(struct device *dev) if (pci_read_config32(dev, 0x120) & ((1 << 24) | (1 << 25) | (1 << 26))) { reg32 = pci_read_config32(dev, 0x120); - reg32 |= (1 << 31); + if (pch_is_lp()) + reg32 &= ~(1 << 31); + else + 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 << 5) | (1 << 6) | (1 << 2) | (1 << 1) | (1 << 0); + if (pch_is_lp()) + reg8 &= ~(1 << 6); + else + reg8 |= (1 << 4); 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); + if (!pch_is_lp()) { + reg32 = pci_read_config32(dev, 0xc0); + reg32 |= (1 << 17); + pci_write_config32(dev, 0xc0, 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); + if (pch_is_lp()) + reg32 |= (1 << 24); + else + reg32 |= (1 << 14); 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); + if (!pch_is_lp()) { + reg32 = pci_read_config32(dev, 0xd0); + reg32 &= ~(1 << 31); + pci_write_config32(dev, 0xd0, reg32); + } - // reg8 = pci_read_config8(dev, 0x40); // Audio Control - reg8 |= 1; // Select Azalia mode. This needs to be controlled via devicetree.cb + reg8 |= 1; // Select Azalia mode 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 (pch_is_lp()) { + reg16 = read32(base + 0x0012); + reg16 |= (1 << 0); + write32(base + 0x0012, reg16); + + /* disable Auto Voltage Detector */ + reg8 = pci_read_config8(dev, 0x42); + reg8 |= (1 << 2); + pci_write_config8(dev, 0x42, reg8); + } +} + +static void azalia_init(struct device *dev) +{ + u32 base; + struct resource *res; + u32 codec_mask; + u32 reg32; + + /* Find base address */ + res = find_resource(dev, PCI_BASE_ADDRESS_0); + if (!res) + return; + + base = (u32)res->base; + printk(BIOS_DEBUG, "Azalia: base = %08x\n", (u32)base); + + /* Set Bus Master */ + reg32 = pci_read_config32(dev, PCI_COMMAND); + pci_write_config32(dev, PCI_COMMAND, reg32 | PCI_COMMAND_MASTER); + + azalia_pch_init(dev, base); + + codec_mask = hda_codec_detect(base); if (codec_mask) { printk(BIOS_DEBUG, "Azalia: codec_mask = %02x\n", codec_mask); - codecs_init(dev, base, codec_mask); + codecs_init(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(device_t dev, unsigned vendor, unsigned device) diff --git a/src/southbridge/intel/lynxpoint/hda_verb.c b/src/southbridge/intel/lynxpoint/hda_verb.c new file mode 100644 index 0000000..234a1ab --- /dev/null +++ b/src/southbridge/intel/lynxpoint/hda_verb.c @@ -0,0 +1,254 @@ +/* + * 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 <console/console.h> +#include <arch/io.h> +#include <delay.h> +#include "pch.h" +#include "hda_verb.h" + +/** + * 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; +} diff --git a/src/southbridge/intel/lynxpoint/hda_verb.h b/src/southbridge/intel/lynxpoint/hda_verb.h new file mode 100644 index 0000000..8b3d27e --- /dev/null +++ b/src/southbridge/intel/lynxpoint/hda_verb.h @@ -0,0 +1,37 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2013 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 + */ + +#ifndef LYNXPOINT_HDA_VERB_H +#define LYNXPOINT_HDA_VERB_H + +#define HDA_GCAP_REG 0x00 +#define HDA_GCTL_REG 0x08 +#define HDA_GCTL_CRST (1 << 0) +#define HDA_STATESTS_REG 0x0e +#define HDA_IC_REG 0x60 +#define HDA_IR_REG 0x64 +#define HDA_ICII_REG 0x68 +#define HDA_ICII_BUSY (1 << 0) +#define HDA_ICII_VALID (1 << 1) + +int hda_codec_detect(u32 base); +int hda_codec_write(u32 base, u32 size, const u32 *data); +int hda_codec_init(u32 base, int addr, int verb_size, const u32 *verb_data); + +#endif |
