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https://github.com/ARM-software/arm-trusted-firmware.git
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7e2bbef9f9
Allow AArch32 to use the multi console driver by adding the required functions Change-Id: I9e69f18965f320074cf75442d6b0de891aef7936 Signed-off-by: Daniel Boulby <daniel.boulby@arm.com>
77 lines
2.3 KiB
ArmAsm
77 lines
2.3 KiB
ArmAsm
/*
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* Copyright (c) 2016-2018, ARM Limited and Contributors. All rights reserved.
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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#include <asm_macros.S>
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#include <platform_def.h>
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.weak plat_arm_calc_core_pos
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.weak plat_my_core_pos
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.globl plat_crash_console_init
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.globl plat_crash_console_putc
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.globl plat_crash_console_flush
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/* -----------------------------------------------------
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* unsigned int plat_my_core_pos(void)
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* This function uses the plat_arm_calc_core_pos()
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* definition to get the index of the calling CPU.
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* -----------------------------------------------------
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*/
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func plat_my_core_pos
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ldcopr r0, MPIDR
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b plat_arm_calc_core_pos
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endfunc plat_my_core_pos
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/* -----------------------------------------------------
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* unsigned int plat_arm_calc_core_pos(uint64_t mpidr)
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* Helper function to calculate the core position.
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* With this function: CorePos = (ClusterId * 4) +
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* CoreId
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* -----------------------------------------------------
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*/
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func plat_arm_calc_core_pos
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and r1, r0, #MPIDR_CPU_MASK
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and r0, r0, #MPIDR_CLUSTER_MASK
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add r0, r1, r0, LSR #6
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bx lr
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endfunc plat_arm_calc_core_pos
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/* ---------------------------------------------
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* int plat_crash_console_init(void)
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* Function to initialize the crash console
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* without a C Runtime to print crash report.
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* Clobber list : r0 - r3
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* ---------------------------------------------
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*/
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func plat_crash_console_init
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ldr r0, =PLAT_ARM_CRASH_UART_BASE
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ldr r1, =PLAT_ARM_CRASH_UART_CLK_IN_HZ
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ldr r2, =ARM_CONSOLE_BAUDRATE
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b console_pl011_core_init
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endfunc plat_crash_console_init
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/* ---------------------------------------------
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* int plat_crash_console_putc(int c)
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* Function to print a character on the crash
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* console without a C Runtime.
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* Clobber list : r1 - r2
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* ---------------------------------------------
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*/
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func plat_crash_console_putc
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ldr r1, =PLAT_ARM_CRASH_UART_BASE
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b console_pl011_core_putc
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endfunc plat_crash_console_putc
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/* ---------------------------------------------
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* int plat_crash_console_flush()
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* Function to force a write of all buffered
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* data that hasn't been output.
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* Out : return -1 on error else return 0.
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* Clobber list : r0
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* ---------------------------------------------
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*/
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func plat_crash_console_flush
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ldr r0, =PLAT_ARM_CRASH_UART_BASE
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b console_pl011_core_flush
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endfunc plat_crash_console_flush
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