1 files changed, 91 insertions, 0 deletions

diff --git a/arch/mips/tx4938/common/setup.c b/arch/mips/tx4938/common/setup.c
new file mode 100644
index 000000000000..fc992953bf95
--- /dev/null
+++ b/arch/mips/tx4938/common/setup.c
@@ -0,0 +1,91 @@
+/*
+ * linux/arch/mips/tx4938/common/setup.c
+ *
+ * common tx4938 setup routines
+ *
+ * 2003-2005 (c) MontaVista Software, Inc. This file is licensed under the
+ * terms of the GNU General Public License version 2. This program is
+ * licensed "as is" without any warranty of any kind, whether express
+ * or implied.
+ *
+ * Support for TX4938 in 2.6 - Manish Lachwani (mlachwani@mvista.com)
+ */
+
+#include <linux/errno.h>
+#include <linux/init.h>
+#include <linux/kernel_stat.h>
+#include <linux/module.h>
+#include <linux/signal.h>
+#include <linux/sched.h>
+#include <linux/types.h>
+#include <linux/interrupt.h>
+#include <linux/ioport.h>
+#include <linux/timex.h>
+#include <linux/slab.h>
+#include <linux/random.h>
+#include <linux/irq.h>
+#include <asm/bitops.h>
+#include <asm/bootinfo.h>
+#include <asm/io.h>
+#include <asm/irq.h>
+#include <asm/mipsregs.h>
+#include <asm/system.h>
+#include <asm/time.h>
+#include <asm/time.h>
+#include <asm/tx4938/rbtx4938.h>
+
+extern void toshiba_rbtx4938_setup(void);
+extern void rbtx4938_time_init(void);
+
+void __init tx4938_setup(void);
+void __init tx4938_time_init(void);
+void __init tx4938_timer_setup(struct irqaction *irq);
+void dump_cp0(char *key);
+
+void (*__wbflush) (void);
+
+static void
+tx4938_write_buffer_flush(void)
+{
+        mmiowb();
+
+        __asm__ __volatile__(
+                ".set   push\n\t"
+                ".set   noreorder\n\t"
+                "lw     $0,%0\n\t"
+                "nop\n\t"
+                ".set   pop"
+                : /* no output */
+                : "m" (*(int *)KSEG1)
+                : "memory");
+}
+
+void __init
+plat_setup(void)
+{
+        board_time_init = tx4938_time_init;
+        board_timer_setup = tx4938_timer_setup;
+        __wbflush = tx4938_write_buffer_flush;
+        toshiba_rbtx4938_setup();
+}
+
+void __init
+tx4938_time_init(void)
+{
+        rbtx4938_time_init();
+}
+
+void __init
+tx4938_timer_setup(struct irqaction *irq)
+{
+        u32 count;
+        u32 c1;
+        u32 c2;
+
+        setup_irq(TX4938_IRQ_CPU_TIMER, irq);
+
+        c1 = read_c0_count();
+        count = c1 + (mips_hpt_frequency / HZ);
+        write_c0_compare(count);
+        c2 = read_c0_count();
+}