mirror of
https://github.com/AsahiLinux/u-boot
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67 lines
1.8 KiB
ArmAsm
67 lines
1.8 KiB
ArmAsm
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/*
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* Copyright (C) 2013 - ARM Ltd
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* Author: Marc Zyngier <marc.zyngier@arm.com>
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*
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* Based on code by Carl van Schaik <carl@ok-labs.com>.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <config.h>
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#include <linux/linkage.h>
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#include <asm/arch-armv7/generictimer.h>
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#include <asm/gic.h>
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#include <asm/macro.h>
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#include <asm/psci.h>
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#include <asm/arch/cpu.h>
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/*
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* Memory layout:
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*
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* SECURE_RAM to text_end :
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* ._secure_text section
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* text_end to ALIGN_PAGE(text_end):
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* nothing
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* ALIGN_PAGE(text_end) to ALIGN_PAGE(text_end) + 0x1000)
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* 1kB of stack per CPU (4 CPUs max).
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*/
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.pushsection ._secure.text, "ax"
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.arch_extension sec
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#define GICD_BASE (SUNXI_GIC400_BASE + 0x1000)
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#define GICC_BASE (SUNXI_GIC400_BASE + 0x2000)
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@ {r0, r1, r2, ip} from _do_nonsec_entry(kernel_entry, 0, machid, r2) in
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@ arch/arm/lib/bootm.c:boot_jump_linux() must remain unchanged across
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@ this function.
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ENTRY(psci_arch_init)
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mov r6, lr
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mov r7, r0
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bl psci_get_cpu_id @ CPU ID => r0
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bl psci_get_cpu_stack_top @ stack top => r0
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sub r0, r0, #4 @ Save space for target PC
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mov sp, r0
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mov r0, r7
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mov lr, r6
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push {r0, r1, r2, ip, lr}
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bl sunxi_gic_init
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pop {r0, r1, r2, ip, pc}
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ENDPROC(psci_arch_init)
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ENTRY(psci_text_end)
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.popsection
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