OpenCloudOS-Kernel/arch/mips/xilfpga/init.c

58 lines
1.1 KiB
C

/*
* Xilfpga platform setup
*
* Copyright (C) 2015 Imagination Technologies
* Author: Zubair Lutfullah Kakakhel <Zubair.Kakakhel@imgtec.com>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*/
#include <linux/of_fdt.h>
#include <linux/of_platform.h>
#include <asm/prom.h>
#define XILFPGA_UART_BASE 0xb0401000
const char *get_system_type(void)
{
return "MIPSfpga";
}
void __init plat_mem_setup(void)
{
__dt_setup_arch(__dtb_start);
strlcpy(arcs_cmdline, boot_command_line, COMMAND_LINE_SIZE);
}
void __init prom_init(void)
{
setup_8250_early_printk_port(XILFPGA_UART_BASE, 2, 50000);
}
void __init prom_free_prom_memory(void)
{
}
void __init device_tree_init(void)
{
if (!initial_boot_params)
return;
unflatten_and_copy_device_tree();
}
static int __init plat_of_setup(void)
{
if (!of_have_populated_dt())
panic("Device tree not present");
if (of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL))
panic("Failed to populate DT");
return 0;
}
arch_initcall(plat_of_setup);