1 files changed, 368 insertions, 0 deletions

diff --git a/arch/parisc/kernel/setup.c b/arch/parisc/kernel/setup.c
new file mode 100644
index 000000000000..73e9c34b0948
--- /dev/null
+++ b/arch/parisc/kernel/setup.c
@@ -0,0 +1,368 @@
+/*    $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, &central_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);
+