diff options
| author | Jeremy Soller <jackpot51@gmail.com> | 2024-03-18 14:33:45 -0600 |
|---|---|---|
| committer | Felix Held <felix-coreboot@felixheld.de> | 2024-06-03 16:55:47 +0000 |
| commit | 657cef204abea1d17ed6ff93dcb6c297de51e474 (patch) | |
| tree | a46b26b5b3fa90a207e19396e89aefe525857a01 | |
| parent | 740cf98f0f962e5d78f5bced1b2f4a9f57f88f7f (diff) | |
soc/intel/meteorlake: Enable USB2 port reset message on Type-C ports
Apply commit c6b65c1a811e ("soc/intel/alderlake: Enable USB2 port reset
message on Type-C ports") to Meteor Lake.
This change is added to address the issue of USB3 ports downgrading to
high speed during low power modes and not returning back to super speed.
The patch enables port reset event on USB2 ports. This event is
is passed to USB3 upstream ports to upgrade back to super speed (USB3)
after a downgrade during low power state.
Change-Id: Iac702a8d8edd2b3b7e03abcac020be7e45335821
Signed-off-by: Jeremy Soller <jeremy@system76.com>
Signed-off-by: Tim Crawford <tcrawford@system76.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/82730
Reviewed-by: Subrata Banik <subratabanik@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
| -rw-r--r-- | src/soc/intel/meteorlake/fsp_params.c | 2 | ||||
| -rw-r--r-- | src/soc/intel/meteorlake/include/soc/usb.h | 2 |
2 files changed, 4 insertions, 0 deletions
diff --git a/src/soc/intel/meteorlake/fsp_params.c b/src/soc/intel/meteorlake/fsp_params.c index 36412b7d88..bf1d9d54f1 100644 --- a/src/soc/intel/meteorlake/fsp_params.c +++ b/src/soc/intel/meteorlake/fsp_params.c @@ -476,6 +476,8 @@ static void fill_fsps_xhci_params(FSP_S_CONFIG *s_cfg, s_cfg->Usb2OverCurrentPin[i] = config->usb2_ports[i].ocpin; else s_cfg->Usb2OverCurrentPin[i] = OC_SKIP; + + s_cfg->PortResetMessageEnable[i] = config->usb2_ports[i].type_c; } max_port = get_max_usb30_port(); diff --git a/src/soc/intel/meteorlake/include/soc/usb.h b/src/soc/intel/meteorlake/include/soc/usb.h index e339c7261e..70a367ec59 100644 --- a/src/soc/intel/meteorlake/include/soc/usb.h +++ b/src/soc/intel/meteorlake/include/soc/usb.h @@ -31,6 +31,7 @@ struct usb2_port_config { uint8_t tx_emp_enable; uint8_t pre_emp_bias; uint8_t pre_emp_bit; + uint8_t type_c; }; /* USB Overcurrent pins definition */ @@ -112,6 +113,7 @@ enum { .tx_emp_enable = USB2_PRE_EMP_ON, \ .pre_emp_bias = USB2_BIAS_56P3MV, \ .pre_emp_bit = USB2_HALF_BIT_PRE_EMP, \ + .type_c = 1, \ } struct usb3_port_config { |