u-boot/arch/arm/mach-at91/arm926ejs/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

58 lines
1.2 KiB
C

// SPDX-License-Identifier: GPL-2.0+
/*
* (C) Copyright 2010
* Reinhard Meyer, reinhard.meyer@emk-elektronik.de
* (C) Copyright 2009
* Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
*/
#include <common.h>
#include <init.h>
#include <vsprintf.h>
#include <asm/io.h>
#include <asm/arch/hardware.h>
#include <asm/arch/at91_pit.h>
#include <asm/arch/at91_gpbr.h>
#include <asm/arch/clk.h>
#ifndef CFG_SYS_AT91_MAIN_CLOCK
#define CFG_SYS_AT91_MAIN_CLOCK 0
#endif
int arch_cpu_init(void)
{
return at91_clock_init(CFG_SYS_AT91_MAIN_CLOCK);
}
void arch_preboot_os(void)
{
ulong cpiv;
at91_pit_t *pit = (at91_pit_t *) ATMEL_BASE_PIT;
cpiv = AT91_PIT_MR_PIV_MASK(readl(&pit->piir));
/*
* Disable PITC
* Add 0x1000 to current counter to stop it faster
* without waiting for wrapping back to 0
*/
writel(cpiv + 0x1000, &pit->mr);
}
#if defined(CONFIG_DISPLAY_CPUINFO)
int print_cpuinfo(void)
{
char __maybe_unused buf[32];
printf("CPU: %s\n", ATMEL_CPU_NAME);
printf("Crystal frequency: %8s MHz\n",
strmhz(buf, get_main_clk_rate()));
printf("CPU clock : %8s MHz\n",
strmhz(buf, get_cpu_clk_rate()));
printf("Master clock : %8s MHz\n",
strmhz(buf, get_mck_clk_rate()));
return 0;
}
#endif