55045ff555
This patch adds two new kernel options: CPU_SUPPORTS_CPUFREQ and CPU_SUPPORTS_ADDRWINCFG to describe the new features of Loongons 2F and replaces the several ugly #if clauses by them. These two options will be utilized by the future loongson revisions and related drivers such as the coming Loongson 2F CPUFreq driver. Signed-off-by: Wu Zhangjin <wuzhangjin@gmail.com> Cc: linux-mips@linux-mips.org Cc: Wu Zhangjin <wuzhangjin@gmail.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
42 lines
1.0 KiB
C
42 lines
1.0 KiB
C
/*
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* Copyright (C) 2009 Lemote Inc.
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* Author: Wu Zhangjin, wuzj@lemote.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/bootmem.h>
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#include <loongson.h>
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/* Loongson CPU address windows config space base address */
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unsigned long __maybe_unused _loongson_addrwincfg_base;
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void __init prom_init(void)
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{
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/* init base address of io space */
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set_io_port_base((unsigned long)
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ioremap(LOONGSON_PCIIO_BASE, LOONGSON_PCIIO_SIZE));
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#ifdef CONFIG_CPU_SUPPORTS_ADDRWINCFG
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_loongson_addrwincfg_base = (unsigned long)
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ioremap(LOONGSON_ADDRWINCFG_BASE, LOONGSON_ADDRWINCFG_SIZE);
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#endif
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prom_init_cmdline();
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prom_init_env();
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prom_init_memory();
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/*init the uart base address */
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#if defined(CONFIG_EARLY_PRINTK) || defined(CONFIG_SERIAL_8250)
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prom_init_uart_base();
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#endif
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}
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void __init prom_free_prom_memory(void)
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{
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}
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