/* * Copyright (c) 2018, ARM Limited and Contributors. All rights reserved. * * SPDX-License-Identifier: BSD-3-Clause */ #include #include static void imx7_clock_uart_init(void) { unsigned int i; for (i = 0; i < MXC_MAX_UART_NUM; i++) imx_clock_disable_uart(i); } static void imx7_clock_wdog_init(void) { unsigned int i; for (i = 0; i < MXC_MAX_WDOG_NUM; i++) imx_clock_disable_wdog(i); } void imx_clock_init(void) { /* * The BootROM hands off to the next stage with the internal 24 MHz XTAL * crystal already clocking the main PLL, which is very handy. * Here we should enable whichever peripherals are required for ATF and * OPTEE. * * Subsequent stages in the boot process such as u-boot and Linux * already have a significant and mature code-base around clocks, so our * objective should be to enable what we need for ATF/OPTEE without * breaking any existing upstream code in Linux and u-boot. */ /* Initialize UART clocks */ imx7_clock_uart_init(); /* Watchdog clocks */ imx7_clock_wdog_init(); }