diff options
| author | Chris Wang <chris.wang@amd-corp-partner.google.com> | 2020-05-19 14:46:35 +0800 |
|---|---|---|
| committer | Patrick Georgi <pgeorgi@google.com> | 2020-07-06 06:14:07 +0000 |
| commit | 04dfc26f94b7682aafc95621806a79ab541c92b5 (patch) | |
| tree | 1d12e3d146d2be2f2622935bb3fdcb932401d3e9 /src/soc | |
| parent | 6e62223f01bedd20628845f2c2dd0371715aa4aa (diff) | |
mb/google/zork: Add USB2 phy tuning parameter for SI tuning
Add the USB2 phy tuning parameter to adjust the USB 2.0 PHY driving strength.
BUG=b:156315391
TEST=Build, verified the tuning value been applied on Trembyle.
Signed-off-by: Chris Wang <chris.wang@amd.corp-partner.google.com>
Change-Id: I3d31792d26729e0acb044282c5300886663dde51
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/third_party/coreboot/+/2208524
Reviewed-by: Raul E Rangel <rrangel@chromium.org>
Reviewed-by: Furquan Shaikh <furquan@chromium.org>
Reviewed-by: Matt Papageorge <matt.papageorge@amd.corp-partner.google.com>
Tested-by: Matt Papageorge <matt.papageorge@amd.corp-partner.google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/42996
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Diffstat (limited to 'src/soc')
| -rw-r--r-- | src/soc/amd/picasso/chip.h | 32 | ||||
| -rw-r--r-- | src/soc/amd/picasso/fsp_params.c | 9 |
2 files changed, 41 insertions, 0 deletions
diff --git a/src/soc/amd/picasso/chip.h b/src/soc/amd/picasso/chip.h index f11f800787..1dbe3d9dd4 100644 --- a/src/soc/amd/picasso/chip.h +++ b/src/soc/amd/picasso/chip.h @@ -14,6 +14,30 @@ #include <acpi/acpi_device.h> #include <arch/smp/mpspec.h> +/* + USB 2.0 PHY Parameters +*/ +struct usb2_phy_tune { + /* Disconnect Threshold Adjustment. Range 0 - 0x7 */ + uint8_t com_pds_tune; + /* Squelch Threshold Adjustment. Range 0 - 0x7 */ + uint8_t sq_rx_tune; + /* FS/LS Source Impedance Adjustment. Range 0 - 0xF */ + uint8_t tx_fsls_tune; + /* HS Transmitter Pre-Emphasis Curent Control. Range 0 - 0x3 */ + uint8_t tx_pre_emp_amp_tune; + /* HS Transmitter Pre-Emphasis Duration Control. Range: 0 - 0x1 */ + uint8_t tx_pre_emp_pulse_tune; + /* HS Transmitter Rise/Fall Time Adjustment. Range: 0 - 0x3 */ + uint8_t tx_rise_tune; + /* HS DC Voltage Level Adjustment. Range 0 - 0xF */ + uint8_t rx_vref_tune; + /* Transmitter High-Speed Crossover Adjustment. Range 0 - 0x3 */ + uint8_t tx_hsxv_tune; + /* USB Source Impedance Adjustment. Range 0 - 0x3. */ + uint8_t tx_res_tune; +}; + struct soc_amd_picasso_config { struct soc_amd_common_config common_config; /* @@ -108,6 +132,14 @@ struct soc_amd_picasso_config { } sd_emmc_config; uint8_t xhci0_force_gen1; + + struct usb2_phy_tune usb_2_port_0_tune_params; + struct usb2_phy_tune usb_2_port_1_tune_params; + struct usb2_phy_tune usb_2_port_2_tune_params; + struct usb2_phy_tune usb_2_port_3_tune_params; + struct usb2_phy_tune usb_2_port_4_tune_params; + struct usb2_phy_tune usb_2_port_5_tune_params; + }; typedef struct soc_amd_picasso_config config_t; diff --git a/src/soc/amd/picasso/fsp_params.c b/src/soc/amd/picasso/fsp_params.c index 9decbbf57b..10bca005e7 100644 --- a/src/soc/amd/picasso/fsp_params.c +++ b/src/soc/amd/picasso/fsp_params.c @@ -98,7 +98,16 @@ static void fsp_fill_pcie_ddi_descriptors(FSP_S_CONFIG *scfg) static void fsp_usb_oem_customization(FSP_S_CONFIG *scfg, const struct soc_amd_picasso_config *cfg) { + size_t num = sizeof(struct usb2_phy_tune); + scfg->xhci0_force_gen1 = cfg->xhci0_force_gen1; + + memcpy(scfg->fch_usb_2_port0_phy_tune, &cfg->usb_2_port_0_tune_params, num); + memcpy(scfg->fch_usb_2_port1_phy_tune, &cfg->usb_2_port_1_tune_params, num); + memcpy(scfg->fch_usb_2_port2_phy_tune, &cfg->usb_2_port_2_tune_params, num); + memcpy(scfg->fch_usb_2_port3_phy_tune, &cfg->usb_2_port_3_tune_params, num); + memcpy(scfg->fch_usb_2_port4_phy_tune, &cfg->usb_2_port_4_tune_params, num); + memcpy(scfg->fch_usb_2_port5_phy_tune, &cfg->usb_2_port_5_tune_params, num); } void platform_fsp_silicon_init_params_cb(FSPS_UPD *supd) |