[MIPS] Wind River 4KC PPMC Eval Board Support
Support for the GT-64120-based Wind River 4KC PPMC Evaluation board.
Signed-off-by: Rongkai.Zhan <Rongkai.zhan@windriver.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
diff --git a/arch/mips/gt64120/wrppmc/reset.c b/arch/mips/gt64120/wrppmc/reset.c
new file mode 100644
index 0000000..b97039c
--- /dev/null
+++ b/arch/mips/gt64120/wrppmc/reset.c
@@ -0,0 +1,50 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 1997 Ralf Baechle
+ */
+#include <linux/sched.h>
+#include <linux/mm.h>
+#include <asm/io.h>
+#include <asm/pgtable.h>
+#include <asm/processor.h>
+#include <asm/reboot.h>
+#include <asm/system.h>
+#include <asm/cacheflush.h>
+
+void wrppmc_machine_restart(char *command)
+{
+ /*
+ * Ouch, we're still alive ... This time we take the silver bullet ...
+ * ... and find that we leave the hardware in a state in which the
+ * kernel in the flush locks up somewhen during of after the PCI
+ * detection stuff.
+ */
+ local_irq_disable();
+ set_c0_status(ST0_BEV | ST0_ERL);
+ change_c0_config(CONF_CM_CMASK, CONF_CM_UNCACHED);
+ flush_cache_all();
+ write_c0_wired(0);
+ __asm__ __volatile__("jr\t%0"::"r"(0xbfc00000));
+}
+
+void wrppmc_machine_halt(void)
+{
+ local_irq_disable();
+
+ printk(KERN_NOTICE "You can safely turn off the power\n");
+ while (1) {
+ __asm__(
+ ".set\tmips3\n\t"
+ "wait\n\t"
+ ".set\tmips0"
+ );
+ }
+}
+
+void wrppmc_machine_power_off(void)
+{
+ wrppmc_machine_halt();
+}