u-boot/arch/x86/cpu/x86_64/cpu.c
Tom Rini d678a59d2d Revert "Merge patch series "arm: dts: am62-beagleplay: Fix Beagleplay Ethernet""
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 commit c8ffd1356d, reversing
changes made to 2ee6f3a5f7.

Reported-by: Jonas Karlman <jonas@kwiboo.se>
Signed-off-by: Tom Rini <trini@konsulko.com>
2024-05-19 08:16:36 -06:00

78 lines
1.2 KiB
C

// SPDX-License-Identifier: GPL-2.0+
/*
* (C) Copyright 2016 Google, Inc
* Written by Simon Glass <sjg@chromium.org>
*/
#include <common.h>
#include <cpu_func.h>
#include <debug_uart.h>
#include <init.h>
#include <asm/cpu.h>
#include <asm/global_data.h>
#include <asm/processor-flags.h>
DECLARE_GLOBAL_DATA_PTR;
int cpu_has_64bit(void)
{
return true;
}
void enable_caches(void)
{
/* Not implemented */
}
void disable_caches(void)
{
/* Not implemented */
}
int dcache_status(void)
{
return true;
}
int x86_mp_init(void)
{
/* Not implemented */
return 0;
}
/* enable SSE features for hardware floating point */
static void setup_sse_features(void)
{
asm ("mov %%cr4, %%rax\n" \
"or %0, %%rax\n" \
"mov %%rax, %%cr4\n" \
: : "i" (X86_CR4_OSFXSR | X86_CR4_OSXMMEXCPT) : "eax");
}
int x86_cpu_reinit_f(void)
{
/* set the vendor to Intel so that native_calibrate_tsc() works */
gd->arch.x86_vendor = X86_VENDOR_INTEL;
gd->arch.has_mtrr = true;
if (IS_ENABLED(CONFIG_X86_HARDFP))
setup_sse_features();
return 0;
}
int cpu_phys_address_size(void)
{
return CONFIG_CPU_ADDR_BITS;
}
int x86_cpu_init_f(void)
{
return 0;
}
#ifdef CONFIG_DEBUG_UART_BOARD_INIT
void board_debug_uart_init(void)
{
/* this was already done in SPL */
}
#endif