diff options
| -rw-r--r-- | src/soc/intel/tigerlake/Makefile.inc | 1 | ||||
| -rw-r--r-- | src/soc/intel/tigerlake/soundwire.c | 71 |
2 files changed, 72 insertions, 0 deletions
diff --git a/src/soc/intel/tigerlake/Makefile.inc b/src/soc/intel/tigerlake/Makefile.inc index 51422f9c64..9ff767cfec 100644 --- a/src/soc/intel/tigerlake/Makefile.inc +++ b/src/soc/intel/tigerlake/Makefile.inc @@ -42,6 +42,7 @@ ramstage-y += p2sb.c ramstage-y += pmc.c ramstage-y += reset.c ramstage-y += smmrelocate.c +ramstage-y += soundwire.c ramstage-y += systemagent.c ramstage-y += me.c diff --git a/src/soc/intel/tigerlake/soundwire.c b/src/soc/intel/tigerlake/soundwire.c new file mode 100644 index 0000000000..f69efce2f9 --- /dev/null +++ b/src/soc/intel/tigerlake/soundwire.c @@ -0,0 +1,71 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ + +#include <acpi/acpi_soundwire.h> +#include <console/console.h> +#include <device/mmio.h> +#include <device/soundwire.h> +#include <drivers/intel/soundwire/soundwire.h> +#include <intelblocks/pmclib.h> +#include <soc/pmc.h> +#include <string.h> + +static const struct soundwire_link link_xtal_38_4 = { + .clock_stop_mode0_supported = 1, + .clock_stop_mode1_supported = 1, + .clock_frequencies_supported_count = 1, + .clock_frequencies_supported = { 4800 * KHz }, + .default_frame_rate = 48 * KHz, + .default_frame_row_size = 50, + .default_frame_col_size = 4, + .dynamic_frame_shape = 1, + .command_error_threshold = 16, +}; + +static const struct soundwire_link link_xtal_24 = { + .clock_stop_mode0_supported = 1, + .clock_stop_mode1_supported = 1, + .clock_frequencies_supported_count = 1, + .clock_frequencies_supported = { 6 * MHz }, + .default_frame_rate = 48 * KHz, + .default_frame_row_size = 125, + .default_frame_col_size = 2, + .dynamic_frame_shape = 1, + .command_error_threshold = 16, +}; + +static struct intel_soundwire_controller intel_controller = { + .acpi_address = 0x40000000, + .sdw = { + .master_list_count = 4 + } +}; + +int soc_fill_soundwire_controller(struct intel_soundwire_controller **controller) +{ + const struct soundwire_link *link; + enum pch_pmc_xtal xtal = pmc_get_xtal_freq(); + size_t i; + + /* Select link config based on XTAL frequency and set IP clock. */ + switch (xtal) { + case XTAL_24_MHZ: + link = &link_xtal_24; + intel_controller.ip_clock = 24 * MHz; + break; + case XTAL_38_4_MHZ: + link = &link_xtal_38_4; + intel_controller.ip_clock = 38400 * KHz; + break; + case XTAL_19_2_MHZ: + default: + printk(BIOS_ERR, "%s: XTAL not supported: 0x%x\n", __func__, xtal); + return -1; + } + + /* Fill link config in controller map based on selected XTAL. */ + for (i = 0; i < intel_controller.sdw.master_list_count; i++) + memcpy(&intel_controller.sdw.master_list[i], link, sizeof(*link)); + + *controller = &intel_controller; + return 0; +} |