diff options
Diffstat (limited to 'src/northbridge/intel/haswell/minihd.c')
| -rw-r--r-- | src/northbridge/intel/haswell/minihd.c | 140 |
1 files changed, 140 insertions, 0 deletions
diff --git a/src/northbridge/intel/haswell/minihd.c b/src/northbridge/intel/haswell/minihd.c new file mode 100644 index 0000000000..cef61263be --- /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, +}; + |