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43 lines
998 B
43 lines
998 B
// 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, [email protected] |
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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 <asm/setup.h> |
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#include <loongson.h> |
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/* raw */ |
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unsigned long loongson_uart_base; |
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/* ioremapped */ |
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unsigned long _loongson_uart_base; |
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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_LEMOTE_FL2E: |
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loongson_uart_base = 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 = 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 = LOONGSON_LIO1_BASE + 0x3f8; |
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break; |
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} |
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_loongson_uart_base = TO_UNCAC(loongson_uart_base); |
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setup_8250_early_printk_port(_loongson_uart_base, 0, 1024); |
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}
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