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plat_helpers.S 1.03 KB
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Samuel Holland's avatar
allwinner: Introduce basic platform support    
Samuel Holland committed
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/*
 * Copyright (c) 2017-2018, ARM Limited and Contributors. All rights reserved.
 *
 * SPDX-License-Identifier: BSD-3-Clause
 */

#include <arch.h>
#include <asm_macros.S>
#include <sunxi_def.h>
#include <sunxi_mmap.h>

	.globl	plat_crash_console_init
	.globl	plat_crash_console_putc
	.globl	plat_crash_console_flush
	.globl	plat_my_core_pos
	.globl	platform_mem_init
	.globl	plat_report_exception

func plat_crash_console_init
	mov_imm x0, SUNXI_UART0_BASE
	mov_imm x1, SUNXI_UART0_CLK_IN_HZ
	mov_imm x2, SUNXI_UART0_BAUDRATE
	b	console_16550_core_init
endfunc plat_crash_console_init

func plat_crash_console_putc
	mov_imm x1, SUNXI_UART0_BASE
	b	console_16550_core_putc
endfunc plat_crash_console_putc

func plat_crash_console_flush
	ret
endfunc plat_crash_console_flush

func plat_my_core_pos
	mrs	x0, mpidr_el1
	and	x1, x0, #MPIDR_CLUSTER_MASK
	and	x0, x0, #MPIDR_CPU_MASK
	add	x0, x0, x1, LSR #6
	ret
endfunc plat_my_core_pos

func platform_mem_init
	ret
endfunc platform_mem_init

func plat_report_exception
	ret
endfunc plat_report_exception