diff options
| -rw-r--r-- | src/soc/intel/alderlake/Kconfig | 4 | ||||
| -rw-r--r-- | src/soc/intel/common/block/scs/Kconfig | 7 | ||||
| -rw-r--r-- | src/soc/intel/common/block/scs/Makefile.inc | 1 | ||||
| -rw-r--r-- | src/soc/intel/common/block/scs/ufs.c | 47 |
4 files changed, 59 insertions, 0 deletions
diff --git a/src/soc/intel/alderlake/Kconfig b/src/soc/intel/alderlake/Kconfig index af1a04934c..5a6df8d758 100644 --- a/src/soc/intel/alderlake/Kconfig +++ b/src/soc/intel/alderlake/Kconfig @@ -295,6 +295,10 @@ config SOC_INTEL_COMMON_BLOCK_GSPI_CLOCK_MHZ config CPU_XTAL_HZ default 38400000 +config SOC_INTEL_UFS_CLK_FREQ_HZ + int + default 19200000 + config DRIVERS_I2C_DESIGNWARE_CLOCK_MHZ int default 133 diff --git a/src/soc/intel/common/block/scs/Kconfig b/src/soc/intel/common/block/scs/Kconfig index 192425c4a0..6b5f49ea67 100644 --- a/src/soc/intel/common/block/scs/Kconfig +++ b/src/soc/intel/common/block/scs/Kconfig @@ -19,3 +19,10 @@ config SOC_INTEL_COMMON_MMC_OVERRIDE help Override the MMC settings after FSP-S. It should be used only when there is no FSP UPDs for certain setting. + +config SOC_INTEL_COMMON_UFS_SUPPORT + bool + default n + help + Enable UFS support. Should be enabled when a particular SoC supports + boot from UFS. diff --git a/src/soc/intel/common/block/scs/Makefile.inc b/src/soc/intel/common/block/scs/Makefile.inc index 0b77f5fa21..aa5f2b5d95 100644 --- a/src/soc/intel/common/block/scs/Makefile.inc +++ b/src/soc/intel/common/block/scs/Makefile.inc @@ -2,4 +2,5 @@ ifneq ($(CONFIG_SOC_INTEL_ALDERLAKE_PCH_N),y) ramstage-$(CONFIG_SOC_INTEL_COMMON_BLOCK_SCS) += sd.c endif ramstage-$(CONFIG_SOC_INTEL_COMMON_BLOCK_SCS) += mmc.c +ramstage-$(CONFIG_SOC_INTEL_COMMON_UFS_SUPPORT) += ufs.c romstage-$(CONFIG_SOC_INTEL_COMMON_EARLY_MMC_WAKE) += early_mmc.c 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 0000000000..e70c87bfff --- /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 +}; |