| /* $Id: setup.c,v 1.8 2000/02/02 04:42:38 prumpf Exp $ |
| * |
| * Initial setup-routines for HP 9000 based hardware. |
| * |
| * Copyright (C) 1991, 1992, 1995 Linus Torvalds |
| * Modifications for PA-RISC (C) 1999 Helge Deller <deller@gmx.de> |
| * Modifications copyright 1999 SuSE GmbH (Philipp Rumpf) |
| * Modifications copyright 2000 Martin K. Petersen <mkp@mkp.net> |
| * Modifications copyright 2000 Philipp Rumpf <prumpf@tux.org> |
| * Modifications copyright 2001 Ryan Bradetich <rbradetich@uswest.net> |
| * |
| * Initial PA-RISC Version: 04-23-1999 by Helge Deller |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; either version 2, or (at your option) |
| * any later version. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
| * |
| */ |
| |
| #include <linux/config.h> |
| #include <linux/kernel.h> |
| #include <linux/initrd.h> |
| #include <linux/init.h> |
| #include <linux/console.h> |
| #include <linux/seq_file.h> |
| #define PCI_DEBUG |
| #include <linux/pci.h> |
| #undef PCI_DEBUG |
| #include <linux/proc_fs.h> |
| |
| #include <asm/processor.h> |
| #include <asm/pdc.h> |
| #include <asm/led.h> |
| #include <asm/machdep.h> /* for pa7300lc_init() proto */ |
| #include <asm/pdc_chassis.h> |
| #include <asm/io.h> |
| #include <asm/setup.h> |
| |
| char command_line[COMMAND_LINE_SIZE]; |
| |
| /* Intended for ccio/sba/cpu statistics under /proc/bus/{runway|gsc} */ |
| struct proc_dir_entry * proc_runway_root = NULL; |
| struct proc_dir_entry * proc_gsc_root = NULL; |
| struct proc_dir_entry * proc_mckinley_root = NULL; |
| |
| #if !defined(CONFIG_PA20) && (defined(CONFIG_IOMMU_CCIO) || defined(CONFIG_IOMMU_SBA)) |
| int parisc_bus_is_phys = 1; /* Assume no IOMMU is present */ |
| EXPORT_SYMBOL(parisc_bus_is_phys); |
| #endif |
| |
| /* This sets the vmerge boundary and size, it's here because it has to |
| * be available on all platforms (zero means no-virtual merging) */ |
| unsigned long parisc_vmerge_boundary = 0; |
| unsigned long parisc_vmerge_max_size = 0; |
| |
| void __init setup_cmdline(char **cmdline_p) |
| { |
| extern unsigned int boot_args[]; |
| |
| /* Collect stuff passed in from the boot loader */ |
| |
| /* boot_args[0] is free-mem start, boot_args[1] is ptr to command line */ |
| if (boot_args[0] < 64) { |
| /* called from hpux boot loader */ |
| saved_command_line[0] = '\0'; |
| } else { |
| strcpy(saved_command_line, (char *)__va(boot_args[1])); |
| |
| #ifdef CONFIG_BLK_DEV_INITRD |
| if (boot_args[2] != 0) /* did palo pass us a ramdisk? */ |
| { |
| initrd_start = (unsigned long)__va(boot_args[2]); |
| initrd_end = (unsigned long)__va(boot_args[3]); |
| } |
| #endif |
| } |
| |
| strcpy(command_line, saved_command_line); |
| *cmdline_p = command_line; |
| } |
| |
| #ifdef CONFIG_PA11 |
| void __init dma_ops_init(void) |
| { |
| switch (boot_cpu_data.cpu_type) { |
| case pcx: |
| /* |
| * We've got way too many dependencies on 1.1 semantics |
| * to support 1.0 boxes at this point. |
| */ |
| panic( "PA-RISC Linux currently only supports machines that conform to\n" |
| "the PA-RISC 1.1 or 2.0 architecture specification.\n"); |
| |
| case pcxs: |
| case pcxt: |
| hppa_dma_ops = &pcx_dma_ops; |
| break; |
| case pcxl2: |
| pa7300lc_init(); |
| case pcxl: /* falls through */ |
| hppa_dma_ops = &pcxl_dma_ops; |
| break; |
| default: |
| break; |
| } |
| } |
| #endif |
| |
| extern int init_per_cpu(int cpuid); |
| extern void collect_boot_cpu_data(void); |
| |
| void __init setup_arch(char **cmdline_p) |
| { |
| #ifdef __LP64__ |
| extern int parisc_narrow_firmware; |
| #endif |
| |
| init_per_cpu(smp_processor_id()); /* Set Modes & Enable FP */ |
| |
| #ifdef __LP64__ |
| printk(KERN_INFO "The 64-bit Kernel has started...\n"); |
| #else |
| printk(KERN_INFO "The 32-bit Kernel has started...\n"); |
| #endif |
| |
| pdc_console_init(); |
| |
| #ifdef __LP64__ |
| if(parisc_narrow_firmware) { |
| printk(KERN_INFO "Kernel is using PDC in 32-bit mode.\n"); |
| } |
| #endif |
| setup_pdc(); |
| setup_cmdline(cmdline_p); |
| collect_boot_cpu_data(); |
| do_memory_inventory(); /* probe for physical memory */ |
| parisc_cache_init(); |
| paging_init(); |
| |
| #ifdef CONFIG_CHASSIS_LCD_LED |
| /* initialize the LCD/LED after boot_cpu_data is available ! */ |
| led_init(); /* LCD/LED initialization */ |
| #endif |
| |
| #ifdef CONFIG_PA11 |
| dma_ops_init(); |
| #endif |
| |
| #if defined(CONFIG_VT) && defined(CONFIG_DUMMY_CONSOLE) |
| conswitchp = &dummy_con; /* we use take_over_console() later ! */ |
| #endif |
| |
| } |
| |
| /* |
| * Display cpu info for all cpu's. |
| * for parisc this is in processor.c |
| */ |
| extern int show_cpuinfo (struct seq_file *m, void *v); |
| |
| static void * |
| c_start (struct seq_file *m, loff_t *pos) |
| { |
| /* Looks like the caller will call repeatedly until we return |
| * 0, signaling EOF perhaps. This could be used to sequence |
| * through CPUs for example. Since we print all cpu info in our |
| * show_cpuinfo() disregarding 'pos' (which I assume is 'v' above) |
| * we only allow for one "position". */ |
| return ((long)*pos < 1) ? (void *)1 : NULL; |
| } |
| |
| static void * |
| c_next (struct seq_file *m, void *v, loff_t *pos) |
| { |
| ++*pos; |
| return c_start(m, pos); |
| } |
| |
| static void |
| c_stop (struct seq_file *m, void *v) |
| { |
| } |
| |
| struct seq_operations cpuinfo_op = { |
| .start = c_start, |
| .next = c_next, |
| .stop = c_stop, |
| .show = show_cpuinfo |
| }; |
| |
| static void __init parisc_proc_mkdir(void) |
| { |
| /* |
| ** Can't call proc_mkdir() until after proc_root_init() has been |
| ** called by start_kernel(). In other words, this code can't |
| ** live in arch/.../setup.c because start_parisc() calls |
| ** start_kernel(). |
| */ |
| switch (boot_cpu_data.cpu_type) { |
| case pcxl: |
| case pcxl2: |
| if (NULL == proc_gsc_root) |
| { |
| proc_gsc_root = proc_mkdir("bus/gsc", NULL); |
| } |
| break; |
| case pcxt_: |
| case pcxu: |
| case pcxu_: |
| case pcxw: |
| case pcxw_: |
| case pcxw2: |
| if (NULL == proc_runway_root) |
| { |
| proc_runway_root = proc_mkdir("bus/runway", NULL); |
| } |
| break; |
| case mako: |
| if (NULL == proc_mckinley_root) |
| { |
| proc_mckinley_root = proc_mkdir("bus/mckinley", NULL); |
| } |
| break; |
| default: |
| /* FIXME: this was added to prevent the compiler |
| * complaining about missing pcx, pcxs and pcxt |
| * I'm assuming they have neither gsc nor runway */ |
| break; |
| } |
| } |
| |
| static struct resource central_bus = { |
| .name = "Central Bus", |
| .start = F_EXTEND(0xfff80000), |
| .end = F_EXTEND(0xfffaffff), |
| .flags = IORESOURCE_MEM, |
| }; |
| |
| static struct resource local_broadcast = { |
| .name = "Local Broadcast", |
| .start = F_EXTEND(0xfffb0000), |
| .end = F_EXTEND(0xfffdffff), |
| .flags = IORESOURCE_MEM, |
| }; |
| |
| static struct resource global_broadcast = { |
| .name = "Global Broadcast", |
| .start = F_EXTEND(0xfffe0000), |
| .end = F_EXTEND(0xffffffff), |
| .flags = IORESOURCE_MEM, |
| }; |
| |
| static int __init parisc_init_resources(void) |
| { |
| int result; |
| |
| result = request_resource(&iomem_resource, ¢ral_bus); |
| if (result < 0) { |
| printk(KERN_ERR |
| "%s: failed to claim %s address space!\n", |
| __FILE__, central_bus.name); |
| return result; |
| } |
| |
| result = request_resource(&iomem_resource, &local_broadcast); |
| if (result < 0) { |
| printk(KERN_ERR |
| "%s: failed to claim %saddress space!\n", |
| __FILE__, local_broadcast.name); |
| return result; |
| } |
| |
| result = request_resource(&iomem_resource, &global_broadcast); |
| if (result < 0) { |
| printk(KERN_ERR |
| "%s: failed to claim %s address space!\n", |
| __FILE__, global_broadcast.name); |
| return result; |
| } |
| |
| return 0; |
| } |
| |
| extern void gsc_init(void); |
| extern void processor_init(void); |
| extern void ccio_init(void); |
| extern void hppb_init(void); |
| extern void dino_init(void); |
| extern void iosapic_init(void); |
| extern void lba_init(void); |
| extern void sba_init(void); |
| extern void eisa_init(void); |
| |
| static int __init parisc_init(void) |
| { |
| parisc_proc_mkdir(); |
| parisc_init_resources(); |
| do_device_inventory(); /* probe for hardware */ |
| |
| parisc_pdc_chassis_init(); |
| |
| /* set up a new led state on systems shipped LED State panel */ |
| pdc_chassis_send_status(PDC_CHASSIS_DIRECT_BSTART); |
| |
| processor_init(); |
| printk(KERN_INFO "CPU(s): %d x %s at %d.%06d MHz\n", |
| boot_cpu_data.cpu_count, |
| boot_cpu_data.cpu_name, |
| boot_cpu_data.cpu_hz / 1000000, |
| boot_cpu_data.cpu_hz % 1000000 ); |
| |
| parisc_setup_cache_timing(); |
| |
| /* These are in a non-obvious order, will fix when we have an iotree */ |
| #if defined(CONFIG_IOSAPIC) |
| iosapic_init(); |
| #endif |
| #if defined(CONFIG_IOMMU_SBA) |
| sba_init(); |
| #endif |
| #if defined(CONFIG_PCI_LBA) |
| lba_init(); |
| #endif |
| |
| /* CCIO before any potential subdevices */ |
| #if defined(CONFIG_IOMMU_CCIO) |
| ccio_init(); |
| #endif |
| |
| /* |
| * Need to register Asp & Wax before the EISA adapters for the IRQ |
| * regions. EISA must come before PCI to be sure it gets IRQ region |
| * 0. |
| */ |
| #if defined(CONFIG_GSC_LASI) || defined(CONFIG_GSC_WAX) |
| gsc_init(); |
| #endif |
| #ifdef CONFIG_EISA |
| eisa_init(); |
| #endif |
| |
| #if defined(CONFIG_HPPB) |
| hppb_init(); |
| #endif |
| |
| #if defined(CONFIG_GSC_DINO) |
| dino_init(); |
| #endif |
| |
| #ifdef CONFIG_CHASSIS_LCD_LED |
| register_led_regions(); /* register LED port info in procfs */ |
| #endif |
| |
| return 0; |
| } |
| |
| arch_initcall(parisc_init); |
| |