1 files changed, 93 insertions, 0 deletions
diff --git a/arch/arm/mach-ns9xxx/include/mach/fim-uncompress.h b/arch/arm/mach-ns9xxx/include/mach/fim-uncompress.h
new file mode 100644
index 000000000000..0f77d72bbc5d
--- /dev/null
+++ b/arch/arm/mach-ns9xxx/include/mach/fim-uncompress.h
@@ -0,0 +1,93 @@
+/* -*- linux-c -*-
+ *
+ * arch/arm/mach-ns9xxx/include/mach/fim-uncompress.h
+ *
+ * Copyright (C) 2009 by Digi International Inc.
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ *
+ *  !Authors:     Hector Palacios, Luis Galdos
+ *  !Desc:
+ *  !References:
+ */
+
+#ifndef __FIM_UNCROMPRESS_H
+#define __FIM_UNCROMPRESS_H
+
+#include <asm/io.h>
+
+#define NS921X_FIM0				__REG(0x90000000)
+#define NS921X_FIM1				__REG(0x90008000)
+
+#define FIM_SERIAL_DATA_BITS			(8)
+
+#define NS92XX_FIM_CTRL0_REG                    (0x10)
+#define NS92XX_FIM_EXP0_REG                     (0x50)
+#define NS92XX_FIM_CTRL_REG(i)                  (NS92XX_FIM_CTRL0_REG + 4*i)
+#define NS92XX_FIM_EXP_REG(i)                   (NS92XX_FIM_EXP0_REG + 4*i)
+
+#define NS92XX_FIM_REG_BASE_PA                  (0x90001000)
+#define NS92XX_FIM_REG_BASE_PA                  (0x90001000)
+#define NS92XX_FIM_REG_OFFSET                   (0x8000)
+#define FIM_REG_ADDR(x)				(NS92XX_FIM_REG_BASE_PA + \
+							(x * NS92XX_FIM_REG_OFFSET)) 
+#define NS921X_FIM_ENABLED(base)		(__raw_readl((base) + 0x1000) \
+							& (1 << 31))
+#define NS92XX_FIM_GEN_CTRL_REG                 (0x00)
+#define NS92XX_FIM_GEN_CTRL_INTTOPIC            (0x00007f00)
+#define NS92XX_FIM_GEN_CTRL_INTACKRD            (0x00000080)
+#define NS92XX_FIM_INT_MASK(code)               (code<<8)
+
+#define FIM_SERIAL_INT_INSERT_CHAR              (0x01)
+
+static int fim_send_interrupt(int pic_num, unsigned int code)
+{
+	unsigned int stopcnt;
+	u32 status;
+
+	code = NS92XX_FIM_INT_MASK(code);
+	status = readl(FIM_REG_ADDR(pic_num) + NS92XX_FIM_GEN_CTRL_REG);
+	writel(status | code, FIM_REG_ADDR(pic_num) + NS92XX_FIM_GEN_CTRL_REG);
+
+	/* This loop is perhaps problematic, exit with a timeout */
+	stopcnt = 0xFFFF;
+	do {
+		status = readl(FIM_REG_ADDR(pic_num)  + NS92XX_FIM_GEN_CTRL_REG);
+		stopcnt--;
+	} while (!(status & NS92XX_FIM_GEN_CTRL_INTACKRD) && stopcnt);
+
+	if (!stopcnt) {
+		return 1;
+	}
+
+	/* Reset the interrupt bits for the PIC acknowledge */
+	status &= ~NS92XX_FIM_GEN_CTRL_INTTOPIC;
+	writel(status, FIM_REG_ADDR(pic_num) + NS92XX_FIM_GEN_CTRL_REG);
+
+	stopcnt = 0xFFFF;
+	do {
+		status = readl(FIM_REG_ADDR(pic_num) + NS92XX_FIM_GEN_CTRL_REG);
+		stopcnt--;
+	} while ((status & NS92XX_FIM_GEN_CTRL_INTACKRD) && stopcnt);
+
+	if (!stopcnt) {
+		return 1;
+	}
+
+	return 0;
+}
+
+static void fim_set_ctrl_reg(int pic_num, int reg, unsigned int val)
+{
+	writel(val, FIM_REG_ADDR(pic_num) + NS92XX_FIM_CTRL_REG(reg));
+}
+
+static int fim_get_exp_reg(int pic_num, int nr)
+{
+	return readl(FIM_REG_ADDR(pic_num) + NS92XX_FIM_EXP_REG(nr));
+}
+
+#endif /* __FIM_UNCROMPRESS_H */