1 files changed, 157 insertions, 0 deletions

diff --git a/arch/score/kernel/setup.c b/arch/score/kernel/setup.c
new file mode 100644
index 000000000000..a172ce170f62
--- /dev/null
+++ b/arch/score/kernel/setup.c
@@ -0,0 +1,157 @@
+/*
+ * arch/score/kernel/setup.c
+ *
+ * Score Processor version.
+ *
+ * Copyright (C) 2009 Sunplus Core Technology Co., Ltd.
+ *  Chen Liqin <liqin.chen@sunplusct.com>
+ *  Lennox Wu <lennox.wu@sunplusct.com>
+ *
+ * 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 of the License, 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, see the file COPYING, or write
+ * to the Free Software Foundation, Inc.,
+ * 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+
+#include <linux/bootmem.h>
+#include <linux/initrd.h>
+#include <linux/ioport.h>
+#include <linux/seq_file.h>
+#include <linux/screen_info.h>
+
+#include <asm-generic/sections.h>
+
+struct screen_info screen_info;
+unsigned long kernelsp;
+
+static char command_line[COMMAND_LINE_SIZE];
+static struct resource code_resource = { .name = "Kernel code",};
+static struct resource data_resource = { .name = "Kernel data",};
+
+static void __init bootmem_init(void)
+{
+        unsigned long reserved_end, bootmap_size;
+        unsigned long size = initrd_end - initrd_start;
+
+        reserved_end = (unsigned long)_end;
+
+        min_low_pfn = 0;
+        max_low_pfn = MEM_SIZE / PAGE_SIZE;
+
+        /* Initialize the boot-time allocator with low memory only. */
+        bootmap_size = init_bootmem_node(NODE_DATA(0), reserved_end,
+                                         min_low_pfn, max_low_pfn);
+        add_active_range(0, min_low_pfn, max_low_pfn);
+
+        free_bootmem(PFN_PHYS(reserved_end),
+                     (max_low_pfn - reserved_end) << PAGE_SHIFT);
+        memory_present(0, reserved_end, max_low_pfn);
+
+        /* Reserve space for the bootmem bitmap. */
+        reserve_bootmem(PFN_PHYS(reserved_end), bootmap_size, BOOTMEM_DEFAULT);
+
+        if (size == 0) {
+                printk(KERN_INFO "Initrd not found or empty");
+                goto disable;
+        }
+
+        if (__pa(initrd_end) > PFN_PHYS(max_low_pfn)) {
+                printk(KERN_ERR "Initrd extends beyond end of memory");
+                goto disable;
+        }
+
+        /* Reserve space for the initrd bitmap. */
+        reserve_bootmem(__pa(initrd_start), size, BOOTMEM_DEFAULT);
+        initrd_below_start_ok = 1;
+
+        pr_info("Initial ramdisk at: 0x%lx (%lu bytes)\n",
+                 initrd_start, size);
+        return;
+disable:
+        printk(KERN_CONT " - disabling initrd\n");
+        initrd_start = 0;
+        initrd_end = 0;
+}
+
+static void __init resource_init(void)
+{
+        struct resource *res;
+
+        code_resource.start = (unsigned long)_text;
+        code_resource.end = (unsigned long)_etext - 1;
+        data_resource.start = (unsigned long)_etext;
+        data_resource.end = (unsigned long)_edata - 1;
+
+        res = alloc_bootmem(sizeof(struct resource));
+        res->name = "System RAM";
+        res->start = 0;
+        res->end = MEM_SIZE - 1;
+        res->flags = IORESOURCE_MEM | IORESOURCE_BUSY;
+        request_resource(&iomem_resource, res);
+
+        request_resource(res, &code_resource);
+        request_resource(res, &data_resource);
+}
+
+void __init setup_arch(char **cmdline_p)
+{
+        randomize_va_space = 0;
+        *cmdline_p = command_line;
+
+        cpu_cache_init();
+        tlb_init();
+        bootmem_init();
+        paging_init();
+        resource_init();
+}
+
+static int show_cpuinfo(struct seq_file *m, void *v)
+{
+        unsigned long n = (unsigned long) v - 1;
+
+        seq_printf(m, "processor\t\t: %ld\n", n);
+        seq_printf(m, "\n");
+
+        return 0;
+}
+
+static void *c_start(struct seq_file *m, loff_t *pos)
+{
+        unsigned long i = *pos;
+
+        return i < 1 ? (void *) (i + 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)
+{
+}
+
+const struct seq_operations cpuinfo_op = {
+        .start  = c_start,
+        .next   = c_next,
+        .stop   = c_stop,
+        .show   = show_cpuinfo,
+};
+
+static int __init topology_init(void)
+{
+        return 0;
+}
+
+subsys_initcall(topology_init);