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-rw-r--r--src/soc/amd/picasso/chip.h9
-rw-r--r--src/soc/amd/picasso/fsp_params.c13
2 files changed, 21 insertions, 1 deletions
diff --git a/src/soc/amd/picasso/chip.h b/src/soc/amd/picasso/chip.h
index 64258b24ca..62272c0927 100644
--- a/src/soc/amd/picasso/chip.h
+++ b/src/soc/amd/picasso/chip.h
@@ -137,6 +137,15 @@ struct soc_amd_picasso_config {
uint8_t has_usb2_phy_tune_params;
struct usb2_phy_tune usb_2_port_tune_params[USB_PORT_COUNT];
+ enum {
+ USB_OC_PIN_0 = 0x0,
+ USB_OC_PIN_1 = 0x1,
+ USB_OC_PIN_2 = 0x2,
+ USB_OC_PIN_3 = 0x3,
+ USB_OC_PIN_4 = 0x4,
+ USB_OC_PIN_5 = 0x5,
+ USB_OC_NONE = 0xf,
+ } usb_port_overcurrent_pin[USB_PORT_COUNT];
};
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 8e6703e436..1dbb8e57b5 100644
--- a/src/soc/amd/picasso/fsp_params.c
+++ b/src/soc/amd/picasso/fsp_params.c
@@ -98,17 +98,28 @@ 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 i;
+
ASSERT(FSPS_UPD_USB2_PORT_COUNT == USB_PORT_COUNT);
+ /* each OC mapping in xhci_oc_pin_select is 4 bit per USB port */
+ ASSERT(2 * sizeof(scfg->xhci_oc_pin_select) >= USB_PORT_COUNT);
scfg->xhci0_force_gen1 = cfg->xhci0_force_gen1;
if (cfg->has_usb2_phy_tune_params) {
- for (size_t i = 0; i < FSPS_UPD_USB2_PORT_COUNT; i++) {
+ for (i = 0; i < FSPS_UPD_USB2_PORT_COUNT; i++) {
memcpy(scfg->fch_usb_2_port_phy_tune[i],
&cfg->usb_2_port_tune_params[i],
sizeof(scfg->fch_usb_2_port_phy_tune[0]));
}
}
+
+ /* lowest nibble of xhci_oc_pin_select corresponds to OC mapping of first USB port */
+ for (i = 0; i < USB_PORT_COUNT; i++) {
+ scfg->xhci_oc_pin_select &= ~(0xf << (i * 4));
+ scfg->xhci_oc_pin_select |=
+ (cfg->usb_port_overcurrent_pin[i] & 0xf) << (i * 4);
+ }
}
void platform_fsp_silicon_init_params_cb(FSPS_UPD *supd)