1b4315306SDan Handley/* 2b4315306SDan Handley * Copyright (c) 2015, ARM Limited and Contributors. All rights reserved. 3b4315306SDan Handley * 4b4315306SDan Handley * Redistribution and use in source and binary forms, with or without 5b4315306SDan Handley * modification, are permitted provided that the following conditions are met: 6b4315306SDan Handley * 7b4315306SDan Handley * Redistributions of source code must retain the above copyright notice, this 8b4315306SDan Handley * list of conditions and the following disclaimer. 9b4315306SDan Handley * 10b4315306SDan Handley * Redistributions in binary form must reproduce the above copyright notice, 11b4315306SDan Handley * this list of conditions and the following disclaimer in the documentation 12b4315306SDan Handley * and/or other materials provided with the distribution. 13b4315306SDan Handley * 14b4315306SDan Handley * Neither the name of ARM nor the names of its contributors may be used 15b4315306SDan Handley * to endorse or promote products derived from this software without specific 16b4315306SDan Handley * prior written permission. 17b4315306SDan Handley * 18b4315306SDan Handley * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 19b4315306SDan Handley * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 20b4315306SDan Handley * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 21b4315306SDan Handley * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE 22b4315306SDan Handley * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 23b4315306SDan Handley * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 24b4315306SDan Handley * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 25b4315306SDan Handley * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 26b4315306SDan Handley * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 27b4315306SDan Handley * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 28b4315306SDan Handley * POSSIBILITY OF SUCH DAMAGE. 29b4315306SDan Handley */ 30b4315306SDan Handley#include <asm_macros.S> 31b4315306SDan Handley#include <platform_def.h> 32b4315306SDan Handley 3338dce70fSSoby Mathew .weak plat_arm_calc_core_pos 3438dce70fSSoby Mathew .weak plat_my_core_pos 35b4315306SDan Handley .globl plat_crash_console_init 36b4315306SDan Handley .globl plat_crash_console_putc 37a6bd5ffbSSandrine Bailleux .globl platform_mem_init 38b4315306SDan Handley 39b4315306SDan Handley 4038dce70fSSoby Mathew /* ----------------------------------------------------- 4138dce70fSSoby Mathew * unsigned int plat_my_core_pos(void) 4238dce70fSSoby Mathew * This function uses the plat_arm_calc_core_pos() 4338dce70fSSoby Mathew * definition to get the index of the calling CPU. 4438dce70fSSoby Mathew * ----------------------------------------------------- 4538dce70fSSoby Mathew */ 4638dce70fSSoby Mathewfunc plat_my_core_pos 4738dce70fSSoby Mathew mrs x0, mpidr_el1 4838dce70fSSoby Mathew b plat_arm_calc_core_pos 4938dce70fSSoby Mathewendfunc plat_my_core_pos 5038dce70fSSoby Mathew 5138dce70fSSoby Mathew /* ----------------------------------------------------- 5238dce70fSSoby Mathew * unsigned int plat_arm_calc_core_pos(uint64_t mpidr) 5338dce70fSSoby Mathew * Helper function to calculate the core position. 5438dce70fSSoby Mathew * With this function: CorePos = (ClusterId * 4) + 5538dce70fSSoby Mathew * CoreId 5638dce70fSSoby Mathew * ----------------------------------------------------- 5738dce70fSSoby Mathew */ 5838dce70fSSoby Mathewfunc plat_arm_calc_core_pos 5938dce70fSSoby Mathew and x1, x0, #MPIDR_CPU_MASK 6038dce70fSSoby Mathew and x0, x0, #MPIDR_CLUSTER_MASK 6138dce70fSSoby Mathew add x0, x1, x0, LSR #6 6238dce70fSSoby Mathew ret 6338dce70fSSoby Mathewendfunc plat_arm_calc_core_pos 6438dce70fSSoby Mathew 65b4315306SDan Handley /* --------------------------------------------- 66b4315306SDan Handley * int plat_crash_console_init(void) 67b4315306SDan Handley * Function to initialize the crash console 68b4315306SDan Handley * without a C Runtime to print crash report. 69*9400b40eSJuan Castillo * Clobber list : x0 - x4 70b4315306SDan Handley * --------------------------------------------- 71b4315306SDan Handley */ 72b4315306SDan Handleyfunc plat_crash_console_init 73b4315306SDan Handley mov_imm x0, PLAT_ARM_CRASH_UART_BASE 74b4315306SDan Handley mov_imm x1, PLAT_ARM_CRASH_UART_CLK_IN_HZ 75b4315306SDan Handley mov_imm x2, ARM_CONSOLE_BAUDRATE 76b4315306SDan Handley b console_core_init 77b4315306SDan Handleyendfunc plat_crash_console_init 78b4315306SDan Handley 79b4315306SDan Handley /* --------------------------------------------- 80b4315306SDan Handley * int plat_crash_console_putc(int c) 81b4315306SDan Handley * Function to print a character on the crash 82b4315306SDan Handley * console without a C Runtime. 83b4315306SDan Handley * Clobber list : x1, x2 84b4315306SDan Handley * --------------------------------------------- 85b4315306SDan Handley */ 86b4315306SDan Handleyfunc plat_crash_console_putc 87b4315306SDan Handley mov_imm x1, PLAT_ARM_CRASH_UART_BASE 88b4315306SDan Handley b console_core_putc 89b4315306SDan Handleyendfunc plat_crash_console_putc 90a6bd5ffbSSandrine Bailleux 91a6bd5ffbSSandrine Bailleux /* --------------------------------------------------------------------- 92a6bd5ffbSSandrine Bailleux * We don't need to carry out any memory initialization on ARM 93a6bd5ffbSSandrine Bailleux * platforms. The Secure RAM is accessible straight away. 94a6bd5ffbSSandrine Bailleux * --------------------------------------------------------------------- 95a6bd5ffbSSandrine Bailleux */ 96a6bd5ffbSSandrine Bailleuxfunc platform_mem_init 97a6bd5ffbSSandrine Bailleux ret 98a6bd5ffbSSandrine Bailleuxendfunc platform_mem_init 99