// 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); }