flash: add nuc910 nand driver

This adds a nand driver support for the nuc910 target.
Note that ECC is not currently supported by this driver, although
it is supported by the peripheral.

Signed-off-by: Spencer Oliver <ntfreak@users.sourceforge.net>

1 files changed, 60 insertions, 0 deletions

diff --git a/src/flash/nand/nuc910.h b/src/flash/nand/nuc910.h
new file mode 100644
index 00000000..644502fc
--- /dev/null
+++ b/src/flash/nand/nuc910.h
@@ -0,0 +1,60 @@
+/***************************************************************************
+ *   Copyright (C) 2010 by Spencer Oliver                                  *
+ *   spen@spen-soft.co.uk                                                  *
+ *                                                                         *
+ *   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.                                   *
+ *                                                                         *
+ *   This program is distributed in the hope that it will be useful,       *
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+ *   GNU General Public License for more details.                          *
+ *                                                                         *
+ *   You should have received a copy of the GNU General Public License     *
+ *   along with this program; if not, write to the                         *
+ *   Free Software Foundation, Inc.,                                       *
+ *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
+ ***************************************************************************/
+
+/*
+ * NAND controller interface for Nuvoton NUC910
+ */
+
+#ifndef NUC910_H
+#define NUC910_H
+
+#define NUC910_FMICSR	0xB000D000
+#define NUC910_SMCSR	0xB000D0A0
+#define NUC910_SMTCR	0xB000D0A4
+#define NUC910_SMIER	0xB000D0A8
+#define NUC910_SMISR	0xB000D0AC
+#define NUC910_SMCMD	0xB000D0B0
+#define NUC910_SMADDR	0xB000D0B4
+#define NUC910_SMDATA	0xB000D0B8
+
+#define NUC910_SMECC0	0xB000D0BC
+#define NUC910_SMECC1	0xB000D0C0
+#define NUC910_SMECC2	0xB000D0C4
+#define NUC910_SMECC3	0xB000D0C8
+#define NUC910_ECC4ST	0xB000D114
+
+/* Global Control and Status Register (FMICSR) */
+#define NUC910_FMICSR_SM_EN	(1<<3)
+
+/* NAND Flash Address Port Register (SMADDR) */
+#define NUC910_SMADDR_EOA (1<<31)
+
+/* NAND Flash Control and Status Register (SMCSR) */
+#define NUC910_SMCSR_PSIZE	(1<<3)
+#define NUC910_SMCSR_DBW	(1<<4)
+
+/* NAND Flash Interrupt Status Register (SMISR) */
+#define NUC910_SMISR_ECC_IF	(1<<2)
+#define NUC910_SMISR_RB_	(1<<18)
+
+/* ECC4 Correction Status (ECC4ST) */
+
+#endif /* NUC910_H */
+