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d678a59d2d
When bringing in the series 'arm: dts: am62-beagleplay: Fix Beagleplay Ethernet"' I failed to notice that b4 noticed it was based on next and so took that as the base commit and merged that part of next to master. This reverts commitc8ffd1356d, reversing changes made to2ee6f3a5f7. Reported-by: Jonas Karlman <jonas@kwiboo.se> Signed-off-by: Tom Rini <trini@konsulko.com>
97 lines
2 KiB
C
97 lines
2 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* (C) Copyright 2008 Texas Insturments
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*
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* (C) Copyright 2002
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* Sysgo Real-Time Solutions, GmbH <www.elinos.com>
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* Marius Groeger <mgroeger@sysgo.de>
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*
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* (C) Copyright 2002
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* Gary Jennejohn, DENX Software Engineering, <garyj@denx.de>
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*/
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#include <common.h>
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#include <command.h>
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#include <cpu_func.h>
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#include <irq_func.h>
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#include <asm/cache.h>
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#include <asm/system.h>
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#include <asm/secure.h>
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#include <linux/compiler.h>
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/*
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* sdelay() - simple spin loop.
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*
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* Will delay execution by roughly (@loops * 2) cycles.
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* This is necessary to be used before timers are accessible.
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*
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* A value of "0" will results in 2^64 loops.
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*/
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void sdelay(unsigned long loops)
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{
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__asm__ volatile ("1:\n" "subs %0, %0, #1\n"
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"b.ne 1b" : "=r" (loops) : "0"(loops) : "cc");
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}
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void __weak board_cleanup_before_linux(void){}
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int cleanup_before_linux(void)
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{
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/*
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* this function is called just before we call linux
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* it prepares the processor for linux
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*
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* disable interrupt and turn off caches etc ...
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*/
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board_cleanup_before_linux();
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disable_interrupts();
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if (IS_ENABLED(CONFIG_CMO_BY_VA_ONLY)) {
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/*
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* Disable D-cache.
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*/
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dcache_disable();
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} else {
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/*
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* Turn off I-cache and invalidate it
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*/
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icache_disable();
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invalidate_icache_all();
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/*
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* turn off D-cache
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* dcache_disable() in turn flushes the d-cache and disables
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* MMU
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*/
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dcache_disable();
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invalidate_dcache_all();
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}
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return 0;
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}
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#ifdef CONFIG_ARMV8_PSCI
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static void relocate_secure_section(void)
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{
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#ifdef CONFIG_ARMV8_SECURE_BASE
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size_t sz = __secure_end - __secure_start;
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memcpy((void *)CONFIG_ARMV8_SECURE_BASE, __secure_start, sz);
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flush_dcache_range(CONFIG_ARMV8_SECURE_BASE,
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CONFIG_ARMV8_SECURE_BASE + sz + 1);
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invalidate_icache_all();
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#endif
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}
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void armv8_setup_psci(void)
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{
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if (current_el() != 3)
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return;
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relocate_secure_section();
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secure_ram_addr(psci_setup_vectors)();
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secure_ram_addr(psci_arch_init)();
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}
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#endif
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