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Diffstat (limited to 'arch/mips/vr41xx/common/init.c')
-rw-r--r--arch/mips/vr41xx/common/init.c77
1 files changed, 77 insertions, 0 deletions
diff --git a/arch/mips/vr41xx/common/init.c b/arch/mips/vr41xx/common/init.c
new file mode 100644
index 000000000..23916321c
--- /dev/null
+++ b/arch/mips/vr41xx/common/init.c
@@ -0,0 +1,77 @@
+/*
+ * init.c, Common initialization routines for NEC VR4100 series.
+ *
+ * Copyright (C) 2003-2009 Yoichi Yuasa <yuasa@linux-mips.org>
+ *
+ * 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, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+#include <linux/init.h>
+#include <linux/ioport.h>
+#include <linux/irq.h>
+#include <linux/string.h>
+
+#include <asm/bootinfo.h>
+#include <asm/time.h>
+#include <asm/vr41xx/irq.h>
+#include <asm/vr41xx/vr41xx.h>
+
+#define IO_MEM_RESOURCE_START 0UL
+#define IO_MEM_RESOURCE_END 0x1fffffffUL
+
+static void __init iomem_resource_init(void)
+{
+ iomem_resource.start = IO_MEM_RESOURCE_START;
+ iomem_resource.end = IO_MEM_RESOURCE_END;
+}
+
+void __init plat_time_init(void)
+{
+ unsigned long tclock;
+
+ vr41xx_calculate_clock_frequency();
+
+ tclock = vr41xx_get_tclock_frequency();
+ if (current_cpu_data.processor_id == PRID_VR4131_REV2_0 ||
+ current_cpu_data.processor_id == PRID_VR4131_REV2_1)
+ mips_hpt_frequency = tclock / 2;
+ else
+ mips_hpt_frequency = tclock / 4;
+}
+
+void __init plat_mem_setup(void)
+{
+ iomem_resource_init();
+
+ vr41xx_siu_setup();
+}
+
+void __init prom_init(void)
+{
+ int argc, i;
+ char **argv;
+
+ argc = fw_arg0;
+ argv = (char **)fw_arg1;
+
+ for (i = 1; i < argc; i++) {
+ strlcat(arcs_cmdline, argv[i], COMMAND_LINE_SIZE);
+ if (i < (argc - 1))
+ strlcat(arcs_cmdline, " ", COMMAND_LINE_SIZE);
+ }
+}
+
+void __init prom_free_prom_memory(void)
+{
+}