forked from Minki/linux
acf7d76827
This is a first version of support for the Cell BE "Reliability, Availability and Serviceability" features. It doesn't yet handle some of the RAS interrupts (the ones described in iic_is/iic_irr), I'm still working on a proper way to expose these. They are essentially a cascaded controller by themselves (sic !) though I may just handle them locally to the iic driver. I need also to sync with David Erb on the way he hooked in the performance monitor interrupt. So that's all for 2.6.17 and I'll do more work on that with my rework of the powerpc interrupt layer that I'm hacking on at the moment. Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
175 lines
3.9 KiB
C
175 lines
3.9 KiB
C
/*
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* linux/arch/powerpc/platforms/cell/cell_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 Cell 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 <linux/mutex.h>
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#include <linux/memory_hotplug.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/kexec.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 <asm/ppc-pci.h>
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#include <asm/irq.h>
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#include <asm/spu.h>
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#include "interrupt.h"
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#include "iommu.h"
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#include "cbe_regs.h"
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#include "pervasive.h"
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#include "ras.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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static void cell_show_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: CHRP %s\n", model);
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of_node_put(root);
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}
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static void cell_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 cell_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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cbe_regs_init();
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#ifdef CONFIG_CBE_RAS
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cbe_ras_init();
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#endif
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#ifdef CONFIG_SMP
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smp_init_cell();
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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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cbe_pervasive_init();
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#ifdef CONFIG_DUMMY_CONSOLE
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conswitchp = &dummy_con;
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#endif
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mmio_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 cell_init_early(void)
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{
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DBG(" -> cell_init_early()\n");
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hpte_init_native();
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cell_init_iommu();
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ppc64_interrupt_controller = IC_CELL_PIC;
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DBG(" <- cell_init_early()\n");
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}
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static int __init cell_probe(void)
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{
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unsigned long root = of_get_flat_dt_root();
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if (of_flat_dt_is_compatible(root, "IBM,CBEA") ||
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of_flat_dt_is_compatible(root, "IBM,CPBW-1.0"))
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return 1;
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return 0;
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}
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/*
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* Cell has no legacy IO; anything calling this function has to
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* fail or bad things will happen
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*/
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static int cell_check_legacy_ioport(unsigned int baseport)
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{
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return -ENODEV;
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}
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define_machine(cell) {
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.name = "Cell",
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.probe = cell_probe,
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.setup_arch = cell_setup_arch,
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.init_early = cell_init_early,
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.show_cpuinfo = cell_show_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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.check_legacy_ioport = cell_check_legacy_ioport,
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.progress = cell_progress,
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#ifdef CONFIG_KEXEC
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.machine_kexec = default_machine_kexec,
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.machine_kexec_prepare = default_machine_kexec_prepare,
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.machine_crash_shutdown = default_machine_crash_shutdown,
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#endif
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};
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