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// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Copyright (C) 2009 Lemote Inc.
* Author: Wu Zhangjin, wuzhangjin@gmail.com
*/
#include <linux/export.h>
#include <asm/bootinfo.h>
#include <asm/setup.h>
#include <loongson.h>
/* raw */
unsigned long loongson_uart_base;
/* ioremapped */
unsigned long _loongson_uart_base;
EXPORT_SYMBOL(loongson_uart_base);
EXPORT_SYMBOL(_loongson_uart_base);
void prom_init_loongson_uart_base(void)
{
switch (mips_machtype) {
case MACH_LEMOTE_FL2E:
loongson_uart_base = LOONGSON_PCIIO_BASE + 0x3f8;
break;
case MACH_LEMOTE_FL2F:
case MACH_LEMOTE_LL2F:
loongson_uart_base = LOONGSON_PCIIO_BASE + 0x2f8;
break;
case MACH_LEMOTE_ML2F7:
case MACH_LEMOTE_YL2F89:
case MACH_DEXXON_GDIUM2F10:
case MACH_LEMOTE_NAS:
default:
/* The CPU provided serial port (LPC) */
loongson_uart_base = LOONGSON_LIO1_BASE + 0x3f8;
break;
}
_loongson_uart_base = TO_UNCAC(loongson_uart_base);
setup_8250_early_printk_port(_loongson_uart_base, 0, 1024);
}
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