variant.c

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/* SPDX-License-Identifier: GPL-2.0-or-later */
 
#include <baseboard/variants.h>
#include <soc/pci_devs.h>
#include <fw_config.h>
#include <sar.h>
#include <soc/amd/picasso/chip.h>
 
static const fsp_ddi_descriptor hdmi_ddi_descriptors[] = {
        { // DDI0, DP0, eDP
                .connector_type = EDP,
                .aux_index = AUX1,
                .hdp_index = HDP1
        },
        { // DDI1, DP1, DB OPT2 USB-C1 / DB OPT3 MST hub
                .connector_type = HDMI,
                .aux_index = AUX2,
                .hdp_index = HDP2
        },
        { // DDI2, DP3, USB-C0
                .connector_type = DP,
                .aux_index = AUX4,
                .hdp_index = HDP4,
        }
};
 
void variant_get_dxio_ddi_descriptors(const fsp_dxio_descriptor **dxio_descs,
                                      size_t *dxio_num,
                                      const fsp_ddi_descriptor **ddi_descs,
                                      size_t *ddi_num)
{
        *dxio_descs = baseboard_get_dxio_descriptors(dxio_num);
 
        *ddi_descs = &hdmi_ddi_descriptors[0];
        *ddi_num = ARRAY_SIZE(hdmi_ddi_descriptors);
}
 
void variant_devtree_update(void)
{
        struct soc_amd_picasso_config *soc_cfg;
        soc_cfg = config_of_soc();
 
        if (board_id() <= 2 || board_id() == BOARD_ID_UNKNOWN)
                return;
 
        /* b:/174121847 Use external OSC to mitigate noise for WWAN sku. */
        if (variant_has_wwan()) {
                soc_cfg->acp_i2s_use_external_48mhz_osc = 1;
 
                /* eDP phy tuning settings */
                soc_cfg->edp_phy_override = ENABLE_EDP_TUNINGSET;
                /* bit vector of phy, bit0=1: DP0, bit1=1: DP1, bit2=1: DP2 bit3=1: DP3 */
                soc_cfg->edp_physel = 0x1;
                /* override for 0.6v 0db swing 1, pre-emphasis 0 */
                soc_cfg->edp_tuningset.dp_vs_pemph_level = 0x01;
                soc_cfg->edp_tuningset.margin_deemph = 0x004b;
                soc_cfg->edp_tuningset.deemph_6db4 = 0x00;
                soc_cfg->edp_tuningset.boostadj = 0x80;
        }
}
 
/*
+----------+------+--------+--------+------+--+---------+--+---------+
|          |Vilboz|Vilboz14|Vilboz14|Vilboz|NA|Vilboz360|NA|Vilboz360|
|          |WiFi  |WiFi    |LTE     |LTE   |  |WiFi     |  |LTE      |
+----------+------+--------+--------+------+--+---------+--+---------+
|SAR[25]   |0     |0       |0       |0     |1 |1        |1 |1        |
|SAR[24]   |0     |0       |1       |1     |0 |0        |1 |1        |
|SAR[23]   |0     |1       |0       |1     |0 |1        |0 |1        |
+----------+------+--------+--------+------+--+---------+--+---------+
|SAR_config|0     |1       |2       |3     |4 |5        |6 |7        |
+----------+------+--------+--------+------+--+---------+--+---------+
*/
 
const char *get_wifi_sar_cbfs_filename(void)
{
        int sar_config;
 
        sar_config = variant_gets_sar_config();
 
        switch (sar_config) {
        case 1:
                return "wifi_sar-vilboz-0.hex";
        case 3:
                return "wifi_sar-vilboz-2.hex";
        case 5:
                return "wifi_sar-vilboz-1.hex";
        case 7:
                return "wifi_sar-vilboz-3.hex";
        default:
                return WIFI_SAR_CBFS_DEFAULT_FILENAME;
        }
}