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/* * Copyright 2022 NXP * * SPDX-License-Identifier: Apache-2.0 */ #include <zephyr/kernel.h> #include <zephyr/device.h> #include <zephyr/init.h> #include <zephyr/arch/arm/aarch32/cortex_a_r/cmsis.h> #include <OsIf.h> #ifdef CONFIG_INIT_CLOCK_AT_BOOT_TIME #include <Clock_Ip.h> #include <Clock_Ip_Cfg.h> #endif void z_arm_platform_init(void) { /* enable peripheral port access at EL1 and EL0 */ __asm__ volatile("mrc p15, 0, r0, c15, c0, 0\n"); __asm__ volatile("orr r0, #1\n"); __asm__ volatile("mcr p15, 0, r0, c15, c0, 0\n"); __DSB(); __ISB(); if (IS_ENABLED(CONFIG_ICACHE)) { if (!(__get_SCTLR() & SCTLR_I_Msk)) { L1C_InvalidateICacheAll(); __set_SCTLR(__get_SCTLR() | SCTLR_I_Msk); __ISB(); } } if (IS_ENABLED(CONFIG_DCACHE)) { if (!(__get_SCTLR() & SCTLR_C_Msk)) { L1C_InvalidateDCacheAll(); __set_SCTLR(__get_SCTLR() | SCTLR_C_Msk); __DSB(); } } } static int soc_init(const struct device *arg) { ARG_UNUSED(arg); /* Install default handler that simply resets the CPU if configured in the * kernel, NOP otherwise */ NMI_INIT(); OsIf_Init(NULL); #ifdef CONFIG_INIT_CLOCK_AT_BOOT_TIME /* Initialize clocks with tool generated code */ Clock_Ip_Init(Clock_Ip_aClockConfig); #endif return 0; } SYS_INIT(soc_init, PRE_KERNEL_1, CONFIG_KERNEL_INIT_PRIORITY_DEFAULT); |