1 files changed, 98 insertions, 0 deletions
diff --git a/u-boot/drivers/mtd/nand/nand.c b/u-boot/drivers/mtd/nand/nand.c
new file mode 100644
index 0000000..d987f4c
--- /dev/null
+++ b/u-boot/drivers/mtd/nand/nand.c
@@ -0,0 +1,98 @@
+/*
+ * (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>
+#include <nand.h>
+
+#ifndef CONFIG_SYS_NAND_BASE_LIST
+#define CONFIG_SYS_NAND_BASE_LIST { CONFIG_SYS_NAND_BASE }
+#endif
+
+DECLARE_GLOBAL_DATA_PTR;
+
+int nand_curr_device = -1;
+nand_info_t nand_info[CONFIG_SYS_MAX_NAND_DEVICE];
+
+static struct nand_chip nand_chip[CONFIG_SYS_MAX_NAND_DEVICE];
+static ulong base_address[CONFIG_SYS_MAX_NAND_DEVICE] = CONFIG_SYS_NAND_BASE_LIST;
+
+static const char default_nand_name[] = "nand";
+static __attribute__((unused)) char dev_name[CONFIG_SYS_MAX_NAND_DEVICE][8];
+
+static void nand_init_chip(struct mtd_info *mtd, struct nand_chip *nand,
+			   ulong base_addr)
+{
+	int maxchips = CONFIG_SYS_NAND_MAX_CHIPS;
+	static int __attribute__((unused)) i = 0;
+
+	if (maxchips < 1)
+		maxchips = 1;
+	mtd->priv = nand;
+
+	nand->IO_ADDR_R = nand->IO_ADDR_W = (void  __iomem *)base_addr;
+	if (board_nand_init(nand) == 0) {
+		if (nand_scan(mtd, maxchips) == 0) {
+			if (!mtd->name)
+				mtd->name = (char *)default_nand_name;
+#ifdef CONFIG_NEEDS_MANUAL_RELOC
+			else
+				mtd->name += gd->reloc_off;
+#endif
+
+#ifdef CONFIG_MTD_DEVICE
+			/*
+			 * Add MTD device so that we can reference it later
+			 * via the mtdcore infrastructure (e.g. ubi).
+			 */
+			sprintf(dev_name[i], "nand%d", i);
+			mtd->name = dev_name[i++];
+			add_mtd_device(mtd);
+#endif
+		} else
+			mtd->name = NULL;
+	} else {
+		mtd->name = NULL;
+		mtd->size = 0;
+	}
+
+}
+
+void nand_init(void)
+{
+	int i;
+	unsigned int size = 0;
+	for (i = 0; i < CONFIG_SYS_MAX_NAND_DEVICE; i++) {
+		nand_init_chip(&nand_info[i], &nand_chip[i], base_address[i]);
+		size += nand_info[i].size / 1024;
+		if (nand_curr_device == -1)
+			nand_curr_device = i;
+	}
+	printf("%u MiB\n", size / 1024);
+
+#ifdef CONFIG_SYS_NAND_SELECT_DEVICE
+	/*
+	 * Select the chip in the board/cpu specific driver
+	 */
+	board_nand_select_device(nand_info[nand_curr_device].priv, nand_curr_device);
+#endif
+}