[MIPS] New files for lemote fulong mini-PC support
Signed-off-by: Fuxin Zhang <zhangfx@lemote.com>
Signed-off-by: Songmao Tian <tiansm@lemote.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
diff --git a/arch/mips/lemote/lm2e/prom.c b/arch/mips/lemote/lm2e/prom.c
new file mode 100644
index 0000000..67312d7
--- /dev/null
+++ b/arch/mips/lemote/lm2e/prom.c
@@ -0,0 +1,104 @@
+/*
+ * Based on Ocelot Linux port, which is
+ * Copyright 2001 MontaVista Software Inc.
+ * Author: jsun@mvista.com or jsun@junsun.net
+ *
+ * Copyright 2003 ICT CAS
+ * Author: Michael Guo <guoyi@ict.ac.cn>
+ *
+ * Copyright (C) 2007 Lemote Inc. & Insititute of Computing Technology
+ * Author: Fuxin Zhang, zhangfx@lemote.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.
+ */
+#include <linux/init.h>
+#include <linux/mm.h>
+#include <linux/sched.h>
+#include <linux/bootmem.h>
+
+#include <asm/addrspace.h>
+#include <asm/bootinfo.h>
+
+extern unsigned long bus_clock;
+extern unsigned long cpu_clock;
+extern unsigned int memsize, highmemsize;
+extern int putDebugChar(unsigned char byte);
+
+static int argc;
+/* pmon passes arguments in 32bit pointers */
+static int *arg;
+static int *env;
+
+const char *get_system_type(void)
+{
+ return "lemote-fulong";
+}
+
+void __init prom_init_cmdline(void)
+{
+ int i;
+ long l;
+
+ /* arg[0] is "g", the rest is boot parameters */
+ arcs_cmdline[0] = '\0';
+ for (i = 1; i < argc; i++) {
+ l = (long)arg[i];
+ if (strlen(arcs_cmdline) + strlen(((char *)l) + 1)
+ >= sizeof(arcs_cmdline))
+ break;
+ strcat(arcs_cmdline, ((char *)l));
+ strcat(arcs_cmdline, " ");
+ }
+}
+
+void __init prom_init(void)
+{
+ long l;
+ argc = fw_arg0;
+ arg = (int *)fw_arg1;
+ env = (int *)fw_arg2;
+
+ mips_machgroup = MACH_GROUP_LEMOTE;
+ mips_machtype = MACH_LEMOTE_FULONG;
+
+ prom_init_cmdline();
+
+ if ((strstr(arcs_cmdline, "console=")) == NULL)
+ strcat(arcs_cmdline, " console=ttyS0,115200");
+ if ((strstr(arcs_cmdline, "root=")) == NULL)
+ strcat(arcs_cmdline, " root=/dev/hda1");
+
+#define parse_even_earlier(res, option, p) \
+do { \
+ if (strncmp(option, (char *)p, strlen(option)) == 0) \
+ res = simple_strtol((char *)p + strlen(option"="), \
+ NULL, 10); \
+} while (0)
+
+ l = (long)*env;
+ while (l != 0) {
+ parse_even_earlier(bus_clock, "busclock", l);
+ parse_even_earlier(cpu_clock, "cpuclock", l);
+ parse_even_earlier(memsize, "memsize", l);
+ parse_even_earlier(highmemsize, "highmemsize", l);
+ env++;
+ l = (long)*env;
+ }
+ if (memsize == 0)
+ memsize = 256;
+
+ pr_info("busclock=%ld, cpuclock=%ld,memsize=%d,highmemsize=%d\n",
+ bus_clock, cpu_clock, memsize, highmemsize);
+}
+
+void __init prom_free_prom_memory(void)
+{
+}
+
+void prom_putchar(char c)
+{
+ putDebugChar(c);
+}