src/soc/mediatek/mt8186/usb.c

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2
   3 /*
   4  * This file is created based on MT8186 Functional Specification
   5  * Chapter number: 5.5
   6  */
   7
   8 #include <device/mmio.h>
   9 #include <gpio.h>
  10 #include <soc/pll_common.h>
  11 #include <soc/usb.h>
  12
  13 #define PERI_USB_WAKEUP_DEC_CON1        0x404
  14 #define PERI_U3_WAKE_CTRL0              0x420
  15
  16 void mtk_usb_prepare(void)
  17 {
  18         mt_pll_set_usb_clock();
  19
  20         gpio_output(GPIO(USB_DRVVBUS_P1), 1);
  21
  22         /* disable IP0 debounce */
  23         write32p(PERICFG_BASE + PERI_U3_WAKE_CTRL0, 0);
  24         /* disable IP1 debounce */
  25         write32p(PERICFG_BASE + PERI_USB_WAKEUP_DEC_CON1, 0);
  26 }