mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-07-06 19:26:16 +09:00
526fcc2203
arch/arm/cpu/arm720t/start.S includes <asm/arch/hardware.h>, but the hardware.h headers of ARM720T boards are all empty. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Cc: Linus Walleij <linus.walleij@linaro.org> Cc: Stephen Warren <swarren@nvidia.com> Cc: Tom Warren <twarren@nvidia.com>
79 lines
1.5 KiB
ArmAsm
79 lines
1.5 KiB
ArmAsm
/*
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* armboot - Startup Code for ARM720 CPU-core
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*
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* Copyright (c) 2001 Marius Gröger <mag@sysgo.de>
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* Copyright (c) 2002 Alex Züpke <azu@sysgo.de>
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#include <asm-offsets.h>
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#include <config.h>
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/*
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*************************************************************************
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*
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* Startup Code (reset vector)
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*
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* do important init only if we don't start from RAM!
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* relocate armboot to ram
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* setup stack
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* jump to second stage
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*
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*************************************************************************
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*/
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.globl reset
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reset:
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/*
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* set the cpu to SVC32 mode
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*/
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mrs r0,cpsr
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bic r0,r0,#0x1f
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orr r0,r0,#0xd3
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msr cpsr,r0
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/*
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* we do sys-critical inits only at reboot,
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* not when booting from ram!
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*/
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#ifndef CONFIG_SKIP_LOWLEVEL_INIT
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bl cpu_init_crit
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#endif
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bl _main
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/*------------------------------------------------------------------------------*/
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.globl c_runtime_cpu_setup
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c_runtime_cpu_setup:
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mov pc, lr
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/*
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*************************************************************************
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*
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* CPU_init_critical registers
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*
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* setup important registers
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* setup memory timing
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*
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*************************************************************************
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*/
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#ifndef CONFIG_SKIP_LOWLEVEL_INIT
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cpu_init_crit:
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mov ip, lr
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/*
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* before relocating, we have to setup RAM timing
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* because memory timing is board-dependent, you will
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* find a lowlevel_init.S in your board directory.
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*/
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bl lowlevel_init
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mov lr, ip
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mov pc, lr
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#endif /* CONFIG_SKIP_LOWLEVEL_INIT */
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