Merge with /home/wd/git/u-boot/testing-NAND/ to add new NAND handling.

1 files changed, 76 insertions, 0 deletions

diff --git a/drivers/nand/nand.c b/drivers/nand/nand.c
new file mode 100644
index 0000000..bc85005
--- /dev/null
+++ b/drivers/nand/nand.c
@@ -0,0 +1,76 @@
+/*
+ * (C) Copyright 2005
+ * 2N Telekomunikace, a.s. <www.2n.cz>
+ * Ladislav Michl <michl@2n.cz>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * 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.
+ *
+ * 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
+ */
+
+#include <common.h>
+
+#ifdef CONFIG_NEW_NAND_CODE
+#if (CONFIG_COMMANDS & CFG_CMD_NAND)
+
+#include <nand.h>
+
+#ifndef CFG_NAND_BASE_LIST
+#define CFG_NAND_BASE_LIST { CFG_NAND_BASE }
+#endif
+
+int nand_curr_device = -1;
+nand_info_t nand_info[CFG_MAX_NAND_DEVICE];
+
+static struct nand_chip nand_chip[CFG_MAX_NAND_DEVICE];
+static ulong base_address[CFG_MAX_NAND_DEVICE] = CFG_NAND_BASE_LIST;
+
+static const char default_nand_name[] = "nand";
+
+extern void board_nand_init(struct nand_chip *nand);
+
+static void nand_init_chip(struct mtd_info *mtd, struct nand_chip *nand,
+			   ulong base_addr)
+{
+	mtd->priv = nand;
+
+	nand->IO_ADDR_R = nand->IO_ADDR_W = (void  __iomem *)base_addr;
+	board_nand_init(nand);
+
+	if (nand_scan(mtd, 1) == 0) {
+		if (!mtd->name)
+			mtd->name = (char *)default_nand_name;
+	} else
+		mtd->name = NULL;
+
+}
+
+void nand_init(void)
+{
+	int i;
+	unsigned int size = 0;
+	for (i = 0; i < CFG_MAX_NAND_DEVICE; i++) {
+		nand_init_chip(&nand_info[i], &nand_chip[i], base_address[i]);
+		size += nand_info[i].size;
+		if (nand_curr_device == -1)
+			nand_curr_device = i;
+}
+	printf("%lu MiB\n", size / (1024 * 1024));
+}
+
+#endif
+#endif /* CONFIG_NEW_NAND_CODE */
+