forked from Minki/linux
3adeb2566b
Machtypes of Loongson-3 machines become more and more, but there are only small differences among different machtypes. Keeping a large table of machtypes is very ugly and hard to extend. We found that the major machtype differences are UARTs information (number of UARTs, UART IRQs, UART clocks, etc.), platform devices (EC, temperature sensors, fan controllers, etc.) and some workarounds (because of some CPU bugs or mainboard bugs). In this patch we improve the UEFI-like (LEFI) interface to make all Loongson-3 machines use a same machtype "generic-loongson-machine". Signed-off-by: Huacai Chen <chenhc@lemote.com> Cc: John Crispin <john@phrozen.org> Cc: Steven J. Hill <Steven.Hill@imgtec.com> Cc: linux-mips@linux-mips.org Cc: Fuxin Zhang <zhangfx@lemote.com> Cc: Zhangjin Wu <wuzhangjin@gmail.com> Patchwork: https://patchwork.linux-mips.org/patch/8324/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
51 lines
1.3 KiB
C
51 lines
1.3 KiB
C
/*
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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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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version.
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*/
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#include <linux/module.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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