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/*
* Keystone2: Architecture initialization
*
* (C) Copyright 2012-2014
* Texas Instruments Incorporated, <www.ti.com>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <ns16550.h>
#include <asm/io.h>
#include <asm/arch/clock.h>
#include <asm/arch/hardware.h>
void chip_configuration_unlock(void)
{
__raw_writel(KEYSTONE_KICK0_MAGIC, KEYSTONE_KICK0);
__raw_writel(KEYSTONE_KICK1_MAGIC, KEYSTONE_KICK1);
}
int arch_cpu_init(void)
{
chip_configuration_unlock();
icache_enable();
#ifdef CONFIG_SOC_K2HK
share_all_segments(8);
share_all_segments(9);
share_all_segments(10); /* QM PDSP */
share_all_segments(11); /* PCIE */
#endif
/*
* just initialise the COM2 port so that TI specific
* UART register PWREMU_MGMT is initialized. Linux UART
* driver doesn't handle this.
*/
NS16550_init((NS16550_t)(CONFIG_SYS_NS16550_COM2),
CONFIG_SYS_NS16550_CLK / 16 / CONFIG_BAUDRATE);
return 0;
}
void reset_cpu(ulong addr)
{
volatile u32 *rstctrl = (volatile u32 *)(KS2_RSTCTRL);
u32 tmp;
tmp = *rstctrl & KS2_RSTCTRL_MASK;
*rstctrl = tmp | KS2_RSTCTRL_KEY;
*rstctrl &= KS2_RSTCTRL_SWRST;
for (;;)
;
}
void enable_caches(void)
{
#ifndef CONFIG_SYS_DCACHE_OFF
/* Enable D-cache. I-cache is already enabled in start.S */
dcache_enable();
#endif
}
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