1 files changed, 55 insertions, 0 deletions

diff --git a/arch/powerpc/platforms/83xx/misc.c b/arch/powerpc/platforms/83xx/misc.c
new file mode 100644
index 000000000000..1455bcef4892
--- /dev/null
+++ b/arch/powerpc/platforms/83xx/misc.c
@@ -0,0 +1,55 @@
+/*
+ * misc setup functions for MPC83xx
+ *
+ * Maintainer: Kumar Gala <galak@kernel.crashing.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.
+ */
+
+#include <linux/config.h>
+#include <linux/stddef.h>
+#include <linux/kernel.h>
+
+#include <asm/io.h>
+#include <asm/hw_irq.h>
+#include <sysdev/fsl_soc.h>
+
+#include "mpc83xx.h"
+
+void mpc83xx_restart(char *cmd)
+{
+#define RST_OFFSET      0x00000900
+#define RST_PROT_REG    0x00000018
+#define RST_CTRL_REG    0x0000001c
+        __be32 __iomem *reg;
+
+        /* map reset register space */
+        reg = ioremap(get_immrbase() + 0x900, 0xff);
+
+        local_irq_disable();
+
+        /* enable software reset "RSTE" */
+        out_be32(reg + (RST_PROT_REG >> 2), 0x52535445);
+
+        /* set software hard reset */
+        out_be32(reg + (RST_CTRL_REG >> 2), 0x2);
+        for (;;) ;
+}
+
+long __init mpc83xx_time_init(void)
+{
+#define SPCR_OFFSET     0x00000110
+#define SPCR_TBEN       0x00400000
+        __be32 __iomem *spcr = ioremap(get_immrbase() + SPCR_OFFSET, 4);
+        __be32 tmp;
+
+        tmp = in_be32(spcr);
+        out_be32(spcr, tmp | SPCR_TBEN);
+
+        iounmap(spcr);
+
+        return 0;
+}