diff options
Diffstat (limited to 'src/soc/intel/baytrail/hda.c')
-rw-r--r-- | src/soc/intel/baytrail/hda.c | 121 |
1 files changed, 121 insertions, 0 deletions
diff --git a/src/soc/intel/baytrail/hda.c b/src/soc/intel/baytrail/hda.c new file mode 100644 index 0000000000..a99e743a60 --- /dev/null +++ b/src/soc/intel/baytrail/hda.c @@ -0,0 +1,121 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2014 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 <arch/io.h> +#include <console/console.h> +#include <device/device.h> +#include <device/pci.h> +#include <device/pci_def.h> +#include <device/pci_ids.h> +#include <reg_script.h> + +#include <baytrail/hda_verb.h> +#include <baytrail/iomap.h> +#include <baytrail/iosf.h> +#include <baytrail/pci_devs.h> +#include <baytrail/ramstage.h> + +static const struct reg_script init_ops[] = { + /* Set up VC0 and VC1. */ + REG_MMIO_WRITE32(RCBA_BASE_ADDRESS + 0x24, 0x80000019), + REG_MMIO_WRITE32(RCBA_BASE_ADDRESS + 0x28, 0x81000022), + /* Enable VCi */ + REG_PCI_WRITE32(0x120, 0x81000022), + /* Enable no snoop traffic. */ + REG_PCI_OR16(0x78, 1 << 11), + /* Configure HDMI codec connection. */ + REG_PCI_OR32(0xc4, 1 << 1), + REG_PCI_OR8(0x43, (1 << 3) | (1 << 6)), + REG_IOSF_WRITE(IOSF_PORT_PMC, PUNIT_PWRGT_CONTROL, 0xc0), + REG_IOSF_WRITE(IOSF_PORT_PMC, PUNIT_PWRGT_CONTROL, 0x00), + /* Configure internal settings. */ + REG_PCI_OR32(0xc0, 0x7 << 21), + REG_PCI_OR32(0xc4, (0x3 << 26) | (1 << 13) | (1 << 10)), + REG_PCI_WRITE32(0xc8, 0x82a30000), + REG_PCI_RMW32(0xd0, ~(1 << 31), 0x0), + /* Disable docking. */ + REG_PCI_RMW8(0x4d, ~(1 << 7), 0), + REG_SCRIPT_END, +}; + +static const uint32_t hdmi_codec_verb_table[] = { + /* coreboot specific header */ + 0x80862882, /* vid did for hdmi codec */ + 0x00000000, /* subsystem id */ + 0x00000003, /* number of jacks */ + + /* pin widget 5 - port B */ + 0x20471c10, + 0x20471d00, + 0x20471e56, + 0x20471f18, + + /* pin widget 6 - port C */ + 0x20571c20, + 0x20571d00, + 0x20571e56, + 0x20571f18, + + /* pin widget 7 - port D */ + 0x20671c30, + 0x20671d00, + 0x20671e56, + 0x20671f58, +}; + +static void hda_init(device_t dev) +{ + struct resource *res; + int codec_mask; + int i; + + reg_script_run_on_dev(dev, init_ops); + + res = find_resource(dev, PCI_BASE_ADDRESS_0); + if (res == NULL) + return; + + codec_mask = hda_codec_detect(res->base); + + printk(BIOS_DEBUG, "codec mask = %x\n", codec_mask); + if (!codec_mask) + return; + + for (i = 3; i >= 0; i--) { + if (!((1 << i) & codec_mask)) + continue; + hda_codec_init(res->base, i, sizeof(hdmi_codec_verb_table), + hdmi_codec_verb_table); + } +} + +static const struct device_operations device_ops = { + .read_resources = pci_dev_read_resources, + .set_resources = pci_dev_set_resources, + .enable_resources = pci_dev_enable_resources, + .init = hda_init, + .enable = NULL, + .scan_bus = NULL, + .ops_pci = &soc_pci_ops, +}; + +static const struct pci_driver southcluster __pci_driver = { + .ops = &device_ops, + .vendor = PCI_VENDOR_ID_INTEL, + .device = HDA_DEVID, +}; |