blob: 87179daeadf4751d103e9deadb829279ecdc2038 [file] [log] [blame]
/*
* Copyright (c) 2015, ARM Limited and Contributors. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* Neither the name of ARM nor the names of its contributors may be used
* to endorse or promote products derived from this software without specific
* prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include <asm_macros.S>
#include <platform_def.h>
.weak plat_arm_calc_core_pos
.weak plat_my_core_pos
.globl plat_crash_console_init
.globl plat_crash_console_putc
.globl platform_mem_init
/* -----------------------------------------------------
* unsigned int plat_my_core_pos(void)
* This function uses the plat_arm_calc_core_pos()
* definition to get the index of the calling CPU.
* -----------------------------------------------------
*/
func plat_my_core_pos
mrs x0, mpidr_el1
b plat_arm_calc_core_pos
endfunc plat_my_core_pos
/* -----------------------------------------------------
* unsigned int plat_arm_calc_core_pos(uint64_t mpidr)
* Helper function to calculate the core position.
* With this function: CorePos = (ClusterId * 4) +
* CoreId
* -----------------------------------------------------
*/
func plat_arm_calc_core_pos
and x1, x0, #MPIDR_CPU_MASK
and x0, x0, #MPIDR_CLUSTER_MASK
add x0, x1, x0, LSR #6
ret
endfunc plat_arm_calc_core_pos
/* ---------------------------------------------
* int plat_crash_console_init(void)
* Function to initialize the crash console
* without a C Runtime to print crash report.
* Clobber list : x0, x1, x2
* ---------------------------------------------
*/
func plat_crash_console_init
mov_imm x0, PLAT_ARM_CRASH_UART_BASE
mov_imm x1, PLAT_ARM_CRASH_UART_CLK_IN_HZ
mov_imm x2, ARM_CONSOLE_BAUDRATE
b console_core_init
endfunc plat_crash_console_init
/* ---------------------------------------------
* int plat_crash_console_putc(int c)
* Function to print a character on the crash
* console without a C Runtime.
* Clobber list : x1, x2
* ---------------------------------------------
*/
func plat_crash_console_putc
mov_imm x1, PLAT_ARM_CRASH_UART_BASE
b console_core_putc
endfunc plat_crash_console_putc
/* ---------------------------------------------------------------------
* We don't need to carry out any memory initialization on ARM
* platforms. The Secure RAM is accessible straight away.
* ---------------------------------------------------------------------
*/
func platform_mem_init
ret
endfunc platform_mem_init