diff options
Diffstat (limited to 'src/soc/intel/common/block/scs/ufs.c')
| -rw-r--r-- | src/soc/intel/common/block/scs/ufs.c | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/src/soc/intel/common/block/scs/ufs.c b/src/soc/intel/common/block/scs/ufs.c new file mode 100644 index 000000000000..e70c87bfffe0 --- /dev/null +++ b/src/soc/intel/common/block/scs/ufs.c @@ -0,0 +1,47 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +#include <acpi/acpi_device.h> +#include <acpi/acpigen.h> +#include <acpi/acpigen_pci.h> +#include <device/pci.h> +#include <device/pci_ids.h> + +#if CONFIG(HAVE_ACPI_TABLES) +static void ufs_fill_ssdt(const struct device *dev) +{ + struct acpi_dp *dsd; + + const char *scope = acpi_device_scope(dev); + + acpigen_write_scope(scope); + acpigen_write_device("UFS"); + acpigen_write_ADR_pci_device(dev); + acpigen_write_name_string("_DDN", "UFS Controller"); + + dsd = acpi_dp_new_table("_DSD"); + acpi_dp_add_integer(dsd, "ref-clk-freq", CONFIG_SOC_INTEL_UFS_CLK_FREQ_HZ); + acpi_dp_write(dsd); + acpigen_write_device_end(); + acpigen_pop_len(); +} +#endif + +static struct device_operations dev_ops = { + .read_resources = pci_dev_read_resources, + .set_resources = pci_dev_set_resources, + .enable_resources = pci_dev_enable_resources, +#if CONFIG(HAVE_ACPI_TABLES) + .acpi_fill_ssdt = ufs_fill_ssdt, +#endif + .ops_pci = &pci_dev_ops_pci, +}; + +static const unsigned short pci_device_ids[] = { + PCI_DID_INTEL_ADP_UFS, + 0 +}; + +static const struct pci_driver pch_ufs __pci_driver = { + .ops = &dev_ops, + .vendor = PCI_VID_INTEL, + .devices = pci_device_ids +}; |