hda.c

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/* SPDX-License-Identifier: GPL-2.0-only */
#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 <soc/intel/common/hda_verb.h>
#include <soc/iomap.h>
#include <soc/iosf.h>
#include <soc/pci_devs.h>
#include <soc/ramstage.h>
 
static const struct reg_script init_ops[] = {
        /* 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(struct device *dev)
{
        struct resource *res;
        int codec_mask;
        int i;
        u8 *base;
 
        reg_script_run_on_dev(dev, init_ops);
 
        res = probe_resource(dev, PCI_BASE_ADDRESS_0);
        if (res == NULL)
                return;
 
        base = res2mmio(res, 0, 0);
        codec_mask = hda_codec_detect(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(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,
        .ops_pci                = &soc_pci_ops,
};
 
static const struct pci_driver southcluster __pci_driver = {
        .ops            = &device_ops,
        .vendor         = PCI_VID_INTEL,
        .device         = HDA_DEVID,
};