/* * File : drv_cache.c * This file is part of RT-Thread RTOS * COPYRIGHT (C) 2006, RT-Thread Development Team * * The license and distribution terms for this file may be * found in the file LICENSE in this distribution or at * http://www.rt-thread.org/license/LICENSE * * Change Logs: * Date Author Notes * 2018-04-02 tanek first implementation */ #include #include #include void rt_hw_cpu_icache_enable(void) { SCB_EnableICache(); } void rt_hw_cpu_icache_disable(void) { SCB_DisableICache(); } rt_base_t rt_hw_cpu_icache_status(void) { return 0; } void rt_hw_cpu_icache_ops(int ops, void* addr, int size) { if (ops & RT_HW_CACHE_INVALIDATE) { ICACHE_InvalidateByRange((uint32_t)addr, size); } } void rt_hw_cpu_dcache_enable(void) { SCB_EnableDCache(); } void rt_hw_cpu_dcache_disable(void) { SCB_DisableDCache(); } rt_base_t rt_hw_cpu_dcache_status(void) { return 0; } void rt_hw_cpu_dcache_ops(int ops, void* addr, int size) { if (ops & (RT_HW_CACHE_FLUSH | RT_HW_CACHE_INVALIDATE)) { DCACHE_CleanInvalidateByRange((uint32_t)addr, size); } else if (ops & RT_HW_CACHE_FLUSH) { DCACHE_CleanByRange((uint32_t)addr, size); } else if (ops & RT_HW_CACHE_INVALIDATE) { DCACHE_InvalidateByRange((uint32_t)addr, size); } else { RT_ASSERT(0); } }