47 строки
1.1 KiB
C
47 строки
1.1 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* Copyright (C) 2009 Lemote Inc.
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* Author: Wu Zhangjin, wuzhangjin@gmail.com
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*/
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#include <linux/export.h>
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#include <asm/bootinfo.h>
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#include <loongson.h>
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/* raw */
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unsigned long loongson_uart_base[MAX_UARTS] = {};
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/* ioremapped */
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unsigned long _loongson_uart_base[MAX_UARTS] = {};
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EXPORT_SYMBOL(loongson_uart_base);
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EXPORT_SYMBOL(_loongson_uart_base);
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void prom_init_loongson_uart_base(void)
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{
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switch (mips_machtype) {
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case MACH_LOONGSON_GENERIC:
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/* The CPU provided serial port (CPU) */
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loongson_uart_base[0] = LOONGSON_REG_BASE + 0x1e0;
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break;
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case MACH_LEMOTE_FL2E:
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loongson_uart_base[0] = LOONGSON_PCIIO_BASE + 0x3f8;
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break;
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case MACH_LEMOTE_FL2F:
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case MACH_LEMOTE_LL2F:
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loongson_uart_base[0] = LOONGSON_PCIIO_BASE + 0x2f8;
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break;
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case MACH_LEMOTE_ML2F7:
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case MACH_LEMOTE_YL2F89:
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case MACH_DEXXON_GDIUM2F10:
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case MACH_LEMOTE_NAS:
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default:
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/* The CPU provided serial port (LPC) */
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loongson_uart_base[0] = LOONGSON_LIO1_BASE + 0x3f8;
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break;
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}
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_loongson_uart_base[0] =
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(unsigned long)ioremap_nocache(loongson_uart_base[0], 8);
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}
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