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140 lines
3.0 KiB
140 lines
3.0 KiB
/*
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* linux/arch/ppc/kernel/bpa_setup.c
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*
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* Copyright (C) 1995 Linus Torvalds
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* Adapted from 'alpha' version by Gary Thomas
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* Modified by Cort Dougan (cort@cs.nmt.edu)
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* Modified by PPC64 Team, IBM Corp
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* Modified by BPA Team, IBM Deutschland Entwicklung GmbH
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version
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* 2 of the License, or (at your option) any later version.
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*/
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#undef DEBUG
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#include <linux/config.h>
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#include <linux/sched.h>
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#include <linux/kernel.h>
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#include <linux/mm.h>
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#include <linux/stddef.h>
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#include <linux/unistd.h>
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#include <linux/slab.h>
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#include <linux/user.h>
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#include <linux/reboot.h>
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#include <linux/init.h>
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#include <linux/delay.h>
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#include <linux/irq.h>
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#include <linux/seq_file.h>
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#include <linux/root_dev.h>
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#include <linux/console.h>
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#include <asm/mmu.h>
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#include <asm/processor.h>
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#include <asm/io.h>
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#include <asm/pgtable.h>
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#include <asm/prom.h>
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#include <asm/rtas.h>
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#include <asm/pci-bridge.h>
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#include <asm/iommu.h>
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#include <asm/dma.h>
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#include <asm/machdep.h>
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#include <asm/time.h>
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#include <asm/nvram.h>
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#include <asm/cputable.h>
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#include "pci.h"
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#include "bpa_iic.h"
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#include "bpa_iommu.h"
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#ifdef DEBUG
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#define DBG(fmt...) udbg_printf(fmt)
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#else
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#define DBG(fmt...)
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#endif
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void bpa_get_cpuinfo(struct seq_file *m)
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{
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struct device_node *root;
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const char *model = "";
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root = of_find_node_by_path("/");
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if (root)
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model = get_property(root, "model", NULL);
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seq_printf(m, "machine\t\t: BPA %s\n", model);
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of_node_put(root);
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}
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static void bpa_progress(char *s, unsigned short hex)
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{
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printk("*** %04x : %s\n", hex, s ? s : "");
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}
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static void __init bpa_setup_arch(void)
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{
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ppc_md.init_IRQ = iic_init_IRQ;
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ppc_md.get_irq = iic_get_irq;
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#ifdef CONFIG_SMP
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smp_init_pSeries();
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#endif
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/* init to some ~sane value until calibrate_delay() runs */
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loops_per_jiffy = 50000000;
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if (ROOT_DEV == 0) {
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printk("No ramdisk, default root is /dev/hda2\n");
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ROOT_DEV = Root_HDA2;
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}
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/* Find and initialize PCI host bridges */
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init_pci_config_tokens();
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find_and_init_phbs();
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spider_init_IRQ();
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#ifdef CONFIG_DUMMY_CONSOLE
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conswitchp = &dummy_con;
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#endif
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bpa_nvram_init();
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}
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/*
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* Early initialization. Relocation is on but do not reference unbolted pages
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*/
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static void __init bpa_init_early(void)
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{
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DBG(" -> bpa_init_early()\n");
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hpte_init_native();
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bpa_init_iommu();
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ppc64_interrupt_controller = IC_BPA_IIC;
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DBG(" <- bpa_init_early()\n");
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}
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static int __init bpa_probe(int platform)
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{
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if (platform != PLATFORM_BPA)
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return 0;
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return 1;
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}
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struct machdep_calls __initdata bpa_md = {
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.probe = bpa_probe,
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.setup_arch = bpa_setup_arch,
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.init_early = bpa_init_early,
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.get_cpuinfo = bpa_get_cpuinfo,
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.restart = rtas_restart,
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.power_off = rtas_power_off,
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.halt = rtas_halt,
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.get_boot_time = rtas_get_boot_time,
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.get_rtc_time = rtas_get_rtc_time,
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.set_rtc_time = rtas_set_rtc_time,
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.calibrate_decr = generic_calibrate_decr,
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.progress = bpa_progress,
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};
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