/* SPDX-License-Identifier: GPL-2.0-only OR MIT */ /* * This file is created based on MT8188 Functional Specification * Chapter number: 5.5 */ #include <device/mmio.h> #include <gpio.h> #include <soc/infracfg.h> #include <soc/pll_common.h> #include <soc/usb.h> #define TRAP_USB20_P1_USBD1_EN 0x10005600 static void mt_set_trapping_pin(void) { /* * MT8188 supports port0/port1 download. The hardware needs a trapping pin to * select the port to use. When port1 is selected, the phy of port1 will be * switched to port0. That is, port1 connector will be the physical line of * port0. Since port0 phy isn't initialized in coreboot, switch back to port1 * phy. */ setbits32p(TRAP_USB20_P1_USBD1_EN, BIT(9)); } void mtk_usb_prepare(void) { mt_pll_set_usb_clock(); mt_set_trapping_pin(); }