mn10300: add the MN10300/AM33 architecture to the kernel

Add architecture support for the MN10300/AM33 CPUs produced by MEI to the
kernel.

This patch also adds board support for the ASB2303 with the ASB2308 daughter
board, and the ASB2305.  The only processor supported is the MN103E010, which
is an AM33v2 core plus on-chip devices.

[akpm@linux-foundation.org: nuke cvs control strings]
Signed-off-by: Masakazu Urade <urade.masakazu@jp.panasonic.com>
Signed-off-by: Koichi Yasutake <yasutake.koichi@jp.panasonic.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 73 insertions, 0 deletions

diff --git a/include/asm-mn10300/intctl-regs.h b/include/asm-mn10300/intctl-regs.h
new file mode 100644
index 000000000000..ba544c796c5a
--- /dev/null
+++ b/include/asm-mn10300/intctl-regs.h
@@ -0,0 +1,73 @@
+/* MN10300 On-board interrupt controller registers
+ *
+ * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public Licence
+ * as published by the Free Software Foundation; either version
+ * 2 of the Licence, or (at your option) any later version.
+ */
+#ifndef _ASM_INTCTL_REGS_H
+#define _ASM_INTCTL_REGS_H
+
+#include <asm/cpu-regs.h>
+
+#ifdef __KERNEL__
+
+/* interrupt controller registers */
+#define GxICR(X)                __SYSREG(0xd4000000 + (X) * 4, u16)     /* group irq ctrl regs */
+
+#define IAGR                    __SYSREG(0xd4000100, u16)       /* intr acceptance group reg */
+#define IAGR_GN                 0x00fc          /* group number register
+                                                 * (documentation _has_ to be wrong)
+                                                 */
+
+#define EXTMD                   __SYSREG(0xd4000200, u16)       /* external pin intr spec reg */
+#define GET_XIRQ_TRIGGER(X) ((EXTMD >> ((X) * 2)) & 3)
+
+#define SET_XIRQ_TRIGGER(X,Y)                   \
+do {                                            \
+        u16 x = EXTMD;                          \
+        x &= ~(3 << ((X) * 2));                 \
+        x |= ((Y) & 3) << ((X) * 2);            \
+        EXTMD = x;                              \
+} while (0)
+
+#define XIRQ_TRIGGER_LOWLEVEL   0
+#define XIRQ_TRIGGER_HILEVEL    1
+#define XIRQ_TRIGGER_NEGEDGE    2
+#define XIRQ_TRIGGER_POSEDGE    3
+
+/* non-maskable interrupt control */
+#define NMIIRQ                  0
+#define NMICR                   GxICR(NMIIRQ)   /* NMI control register */
+#define NMICR_NMIF              0x0001          /* NMI pin interrupt flag */
+#define NMICR_WDIF              0x0002          /* watchdog timer overflow flag */
+#define NMICR_ABUSERR           0x0008          /* async bus error flag */
+
+/* maskable interrupt control */
+#define GxICR_DETECT            0x0001          /* interrupt detect flag */
+#define GxICR_REQUEST           0x0010          /* interrupt request flag */
+#define GxICR_ENABLE            0x0100          /* interrupt enable flag */
+#define GxICR_LEVEL             0x7000          /* interrupt priority level */
+#define GxICR_LEVEL_0           0x0000          /* - level 0 */
+#define GxICR_LEVEL_1           0x1000          /* - level 1 */
+#define GxICR_LEVEL_2           0x2000          /* - level 2 */
+#define GxICR_LEVEL_3           0x3000          /* - level 3 */
+#define GxICR_LEVEL_4           0x4000          /* - level 4 */
+#define GxICR_LEVEL_5           0x5000          /* - level 5 */
+#define GxICR_LEVEL_6           0x6000          /* - level 6 */
+#define GxICR_LEVEL_SHIFT       12
+
+#ifndef __ASSEMBLY__
+extern void set_intr_level(int irq, u16 level);
+extern void set_intr_postackable(int irq);
+#endif
+
+/* external interrupts */
+#define XIRQxICR(X)             GxICR((X))      /* external interrupt control regs */
+
+#endif /* __KERNEL__ */
+
+#endif /* _ASM_INTCTL_REGS_H */