From 7ad959490962e6842648d87d4bd795ea6cdcce67 Mon Sep 17 00:00:00 2001
From: Anton Vorontsov <avorontsov@ru.mvista.com>
Date: Mon, 24 Mar 2008 20:46:51 +0300
Subject: mpc83xx: MPC8360E-RDK: add support for NAND

Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
---
 board/freescale/mpc8360erdk/nand.c | 72 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 72 insertions(+)
 create mode 100644 board/freescale/mpc8360erdk/nand.c

(limited to 'board/freescale/mpc8360erdk/nand.c')

diff --git a/board/freescale/mpc8360erdk/nand.c b/board/freescale/mpc8360erdk/nand.c
new file mode 100644
index 0000000..e1e790b
--- /dev/null
+++ b/board/freescale/mpc8360erdk/nand.c
@@ -0,0 +1,72 @@
+/*
+ * MPC8360E-RDK support for the NAND on FSL UPM
+ *
+ * Copyright (C) 2007 MontaVista Software, Inc.
+ *                    Anton Vorontsov <avorontsov@ru.mvista.com>
+ *
+ * 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 <config.h>
+#include <common.h>
+#include <asm/io.h>
+#include <asm/immap_83xx.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/fsl_upm.h>
+#include <nand.h>
+
+static struct immap *im = (struct immap *)CFG_IMMR;
+
+static const u32 upm_array[] = {
+	0x0ff03c30, 0x0ff03c30, 0x0ff03c34, 0x0ff33c30, /* Words  0 to  3 */
+	0xfff33c31, 0xfffffc30, 0xfffffc30, 0xfffffc30, /* Words  4 to  7 */
+	0x0faf3c30, 0x0faf3c30, 0x0faf3c30, 0x0fff3c34, /* Words  8 to 11 */
+	0xffff3c31, 0xfffffc30, 0xfffffc30, 0xfffffc30, /* Words 12 to 15 */
+	0x0fa3fc30, 0x0fa3fc30, 0x0fa3fc30, 0x0ff3fc34, /* Words 16 to 19 */
+	0xfff3fc31, 0xfffffc30, 0xfffffc30, 0xfffffc30, /* Words 20 to 23 */
+	0x0ff33c30, 0x0fa33c30, 0x0fa33c34, 0x0ff33c30, /* Words 24 to 27 */
+	0xfff33c31, 0xfff0fc30, 0xfff0fc30, 0xfff0fc30, /* Words 28 to 31 */
+	0xfff3fc30, 0xfff3fc30, 0xfff6fc30, 0xfffcfc30, /* Words 32 to 35 */
+	0xfffcfc30, 0xfffcfc30, 0xfffcfc30, 0xfffcfc30, /* Words 36 to 39 */
+	0xfffcfc30, 0xfffcfc30, 0xfffcfc30, 0xfffcfc30, /* Words 40 to 43 */
+	0xfffdfc30, 0xfffffc30, 0xfffffc30, 0xfffffc31, /* Words 44 to 47 */
+	0xfffffc30, 0xfffffc00, 0xfffffc00, 0xfffffc00, /* Words 48 to 51 */
+	0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc00, /* Words 52 to 55 */
+	0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc01, /* Words 56 to 59 */
+	0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc01, /* Words 60 to 63 */
+};
+
+static int dev_ready(void)
+{
+	if (in_be32(&im->qepio.ioport[4].pdat) & 0x00002000) {
+		debug("nand ready\n");
+		return 1;
+	}
+
+	debug("nand busy\n");
+	return 0;
+}
+
+static struct fsl_upm_nand fun = {
+	.upm = {
+		.array = upm_array,
+		.io_addr = (void *)CFG_NAND_BASE,
+	},
+	.width = 1,
+	.upm_cmd_offset = 8,
+	.upm_addr_offset = 16,
+	.dev_ready = dev_ready,
+	.wait_pattern = 1,
+	.chip_delay = 50,
+};
+
+int board_nand_init(struct nand_chip *nand)
+{
+	fun.upm.mxmr = &im->lbus.mamr;
+	fun.upm.mdr = &im->lbus.mdr;
+	fun.upm.mar = &im->lbus.mar;
+	return fsl_upm_nand_init(nand, &fun);
+}
-- 
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