src/soc/mediatek/mt8195/usb.c

   1 /* SPDX-License-Identifier: GPL-2.0-only OR MIT */
   2
   3 #include <device/mmio.h>
   4 #include <soc/infracfg.h>
   5 #include <soc/pll.h>
   6 #include <soc/usb.h>
   7
   8 void mtk_usb_prepare(void)
   9 {
  10         mt_pll_set_usb_clock();
  11 }
  12
  13 void mtk_usb_adjust_phy_shift(void)
  14 {
  15         u32 phy_set_val, write_val;
  16         struct ssusb_sif_port *phy = (void *)(SSUSB_SIF_BASE);
  17
  18         SET32_BITFIELDS(&phy->u3phyd.phyd_reserved,
  19                         AUTO_LOAD_DIS, 1);
  20
  21         phy_set_val = read32((void *)USB_PHY_SETTING_REG);
  22
  23         /* TX imp */
  24         write_val = (phy_set_val & TX_IMP_MASK) >> TX_IMP_SHIFT;
  25         SET32_BITFIELDS(&phy->u3phyd.phyd_cal0,
  26                         TX_IMP_CAL, write_val,
  27                         TX_IMP_CAL_EN, 1);
  28
  29         /* RX imp */
  30         write_val = (phy_set_val & RX_IMP_MASK) >> RX_IMP_SHIFT;
  31         SET32_BITFIELDS(&phy->u3phyd.phyd_cal1,
  32                         RX_IMP_CAL, write_val,
  33                         RX_IMP_CAL_EN, 1);
  34
  35         /* Intr_cal */
  36         write_val = (phy_set_val & INTR_CAL_MASK) >> INTR_CAL_SHIFT;
  37         SET32_BITFIELDS(&phy->u3phya.phya_reg0,
  38                         INTR_CAL, write_val);
  39 }