mirror of https://gitee.com/openkylin/linux.git
65 lines
1.3 KiB
C
65 lines
1.3 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
|
|
/*
|
|
* init.c, Common initialization routines for NEC VR4100 series.
|
|
*
|
|
* Copyright (C) 2003-2009 Yoichi Yuasa <yuasa@linux-mips.org>
|
|
*/
|
|
#include <linux/init.h>
|
|
#include <linux/ioport.h>
|
|
#include <linux/irq.h>
|
|
#include <linux/string.h>
|
|
|
|
#include <asm/bootinfo.h>
|
|
#include <asm/time.h>
|
|
#include <asm/vr41xx/irq.h>
|
|
#include <asm/vr41xx/vr41xx.h>
|
|
|
|
#define IO_MEM_RESOURCE_START 0UL
|
|
#define IO_MEM_RESOURCE_END 0x1fffffffUL
|
|
|
|
static void __init iomem_resource_init(void)
|
|
{
|
|
iomem_resource.start = IO_MEM_RESOURCE_START;
|
|
iomem_resource.end = IO_MEM_RESOURCE_END;
|
|
}
|
|
|
|
void __init plat_time_init(void)
|
|
{
|
|
unsigned long tclock;
|
|
|
|
vr41xx_calculate_clock_frequency();
|
|
|
|
tclock = vr41xx_get_tclock_frequency();
|
|
if (current_cpu_data.processor_id == PRID_VR4131_REV2_0 ||
|
|
current_cpu_data.processor_id == PRID_VR4131_REV2_1)
|
|
mips_hpt_frequency = tclock / 2;
|
|
else
|
|
mips_hpt_frequency = tclock / 4;
|
|
}
|
|
|
|
void __init plat_mem_setup(void)
|
|
{
|
|
iomem_resource_init();
|
|
|
|
vr41xx_siu_setup();
|
|
}
|
|
|
|
void __init prom_init(void)
|
|
{
|
|
int argc, i;
|
|
char **argv;
|
|
|
|
argc = fw_arg0;
|
|
argv = (char **)fw_arg1;
|
|
|
|
for (i = 1; i < argc; i++) {
|
|
strlcat(arcs_cmdline, argv[i], COMMAND_LINE_SIZE);
|
|
if (i < (argc - 1))
|
|
strlcat(arcs_cmdline, " ", COMMAND_LINE_SIZE);
|
|
}
|
|
}
|
|
|
|
void __init prom_free_prom_memory(void)
|
|
{
|
|
}
|