174 lines
3.9 KiB
C
174 lines
3.9 KiB
C
/*
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* PS3 platform setup routines.
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*
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* Copyright (C) 2006 Sony Computer Entertainment Inc.
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* Copyright 2006 Sony Corp.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include <linux/kernel.h>
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#include <linux/delay.h>
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#include <linux/fs.h>
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#include <linux/root_dev.h>
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#include <linux/console.h>
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#include <linux/kexec.h>
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#include <asm/machdep.h>
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#include <asm/firmware.h>
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#include <asm/time.h>
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#include <asm/iommu.h>
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#include <asm/udbg.h>
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#include <asm/prom.h>
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#include <asm/lv1call.h>
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#include "platform.h"
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#if defined(DEBUG)
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#define DBG(fmt...) udbg_printf(fmt)
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#else
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#define DBG(fmt...) do{if(0)printk(fmt);}while(0)
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#endif
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static void ps3_show_cpuinfo(struct seq_file *m)
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{
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seq_printf(m, "machine\t\t: %s\n", ppc_md.name);
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}
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static void ps3_power_save(void)
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{
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/*
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* lv1_pause() puts the PPE thread into inactive state until an
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* irq on an unmasked plug exists. MSR[EE] has no effect.
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* flags: 0 = wake on DEC interrupt, 1 = ignore DEC interrupt.
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*/
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lv1_pause(0);
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}
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static void ps3_panic(char *str)
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{
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DBG("%s:%d %s\n", __func__, __LINE__, str);
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#ifdef CONFIG_SMP
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smp_send_stop();
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#endif
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printk("\n");
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printk(" System does not reboot automatically.\n");
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printk(" Please press POWER button.\n");
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printk("\n");
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for (;;) ;
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}
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static void __init ps3_setup_arch(void)
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{
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DBG(" -> %s:%d\n", __func__, __LINE__);
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ps3_spu_set_platform();
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ps3_map_htab();
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#ifdef CONFIG_SMP
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smp_init_ps3();
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#endif
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#ifdef CONFIG_DUMMY_CONSOLE
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conswitchp = &dummy_con;
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#endif
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ppc_md.power_save = ps3_power_save;
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DBG(" <- %s:%d\n", __func__, __LINE__);
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}
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static void __init ps3_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 int __init ps3_probe(void)
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{
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unsigned long htab_size;
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unsigned long dt_root;
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DBG(" -> %s:%d\n", __func__, __LINE__);
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dt_root = of_get_flat_dt_root();
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if (!of_flat_dt_is_compatible(dt_root, "PS3"))
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return 0;
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powerpc_firmware_features |= FW_FEATURE_PS3_POSSIBLE;
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ps3_os_area_init();
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ps3_mm_init();
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ps3_mm_vas_create(&htab_size);
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ps3_hpte_init(htab_size);
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DBG(" <- %s:%d\n", __func__, __LINE__);
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return 1;
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}
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#if defined(CONFIG_KEXEC)
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static void ps3_kexec_cpu_down(int crash_shutdown, int secondary)
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{
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DBG(" -> %s:%d\n", __func__, __LINE__);
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if (secondary) {
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int cpu;
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for_each_online_cpu(cpu)
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if (cpu)
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ps3_smp_cleanup_cpu(cpu);
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} else
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ps3_smp_cleanup_cpu(0);
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DBG(" <- %s:%d\n", __func__, __LINE__);
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}
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static void ps3_machine_kexec(struct kimage *image)
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{
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unsigned long ppe_id;
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DBG(" -> %s:%d\n", __func__, __LINE__);
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lv1_get_logical_ppe_id(&ppe_id);
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lv1_configure_irq_state_bitmap(ppe_id, 0, 0);
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ps3_mm_shutdown();
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ps3_mm_vas_destroy();
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default_machine_kexec(image);
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DBG(" <- %s:%d\n", __func__, __LINE__);
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}
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#endif
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define_machine(ps3) {
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.name = "PS3",
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.probe = ps3_probe,
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.setup_arch = ps3_setup_arch,
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.show_cpuinfo = ps3_show_cpuinfo,
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.init_IRQ = ps3_init_IRQ,
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.panic = ps3_panic,
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.get_boot_time = ps3_get_boot_time,
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.set_rtc_time = ps3_set_rtc_time,
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.get_rtc_time = ps3_get_rtc_time,
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.calibrate_decr = ps3_calibrate_decr,
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.progress = ps3_progress,
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#if defined(CONFIG_KEXEC)
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.kexec_cpu_down = ps3_kexec_cpu_down,
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.machine_kexec = ps3_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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