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Diffstat (limited to 'arch/mips/au1000/csb250/init.c')
-rw-r--r--arch/mips/au1000/csb250/init.c95
1 files changed, 95 insertions, 0 deletions
diff --git a/arch/mips/au1000/csb250/init.c b/arch/mips/au1000/csb250/init.c
new file mode 100644
index 00000000000..4320057fc43
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+++ b/arch/mips/au1000/csb250/init.c
@@ -0,0 +1,95 @@
+/*
+ *
+ * BRIEF MODULE DESCRIPTION
+ * Cogent CSB250 board setup
+ *
+ * Copyright 2002 Cogent Computer Systems, Inc.
+ * dan@embeddededge.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 SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
+ * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * 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/init.h>
+#include <linux/mm.h>
+#include <linux/sched.h>
+#include <linux/bootmem.h>
+#include <asm/addrspace.h>
+#include <asm/bootinfo.h>
+#include <linux/string.h>
+#include <linux/kernel.h>
+#include <linux/sched.h>
+
+int prom_argc;
+char **prom_argv, **prom_envp;
+extern void __init prom_init_cmdline(void);
+extern char *prom_getenv(char *envname);
+
+/* When we get initrd working someday.........
+*/
+int my_initrd_start, my_initrd_size;
+
+/* Start arguments and environment.
+*/
+static char *csb_env[2];
+static char *csb_arg[4];
+static char *arg1 = "console=ttyS3,38400";
+static char *arg2 = "root=/dev/nfs rw ip=any";
+static char *env1 = "ethaddr=00:30:23:50:00:00";
+
+const char *get_system_type(void)
+{
+ return "Cogent CSB250";
+}
+
+int __init prom_init(int argc, char **argv, char **envp, int *prom_vec)
+{
+ unsigned char *memsize_str;
+ unsigned long memsize;
+
+ /* We use a0 and a1 to pass initrd start and size.
+ */
+ if (((uint) argc > 0) && ((uint)argv > 0)) {
+ my_initrd_start = (uint)argc;
+ my_initrd_size = (uint)argv;
+ }
+
+ /* First argv is ignored.
+ */
+ prom_argc = 3;
+ prom_argv = csb_arg;
+ prom_envp = csb_env;
+ csb_arg[1] = arg1;
+ csb_arg[2] = arg2;
+ csb_env[0] = env1;
+
+ mips_machgroup = MACH_GROUP_ALCHEMY;
+ mips_machtype = MACH_CSB250;
+
+ prom_init_cmdline();
+ memsize_str = prom_getenv("memsize");
+ if (!memsize_str) {
+ memsize = 0x02000000;
+ } else {
+ memsize = simple_strtol(memsize_str, NULL, 0);
+ }
+ add_memory_region(0, memsize, BOOT_MEM_RAM);
+ return 0;
+}