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831b0e9824
And from crash_console_flush. We ignore the error information return by console_flush in _every_ place where we call it, and casting the return type to void does not work around the MISRA violation that this causes. Instead, we collect the error information from the driver (to avoid changing that API), and don't return it to the caller. Change-Id: I1e35afe01764d5c8f0efd04f8949d333ffb688c1 Signed-off-by: Jimmy Brisson <jimmy.brisson@arm.com>
77 lines
2.3 KiB
ArmAsm
77 lines
2.3 KiB
ArmAsm
/*
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* Copyright (c) 2016-2020, 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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* void 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 : void.
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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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