at91sam9/at91cap: move nand drivers to drivers/mtd/nand
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
diff --git a/drivers/mtd/nand/atmel_nand.c b/drivers/mtd/nand/atmel_nand.c
new file mode 100644
index 0000000..40002be
--- /dev/null
+++ b/drivers/mtd/nand/atmel_nand.c
@@ -0,0 +1,78 @@
+/*
+ * (C) Copyright 2007-2008
+ * Stelian Pop <stelian.pop@leadtechdesign.com>
+ * Lead Tech Design <www.leadtechdesign.com>
+ *
+ * (C) Copyright 2006 ATMEL Rousset, Lacressonniere Nicolas
+ *
+ * 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 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
+ */
+
+#include <common.h>
+#include <asm/arch/hardware.h>
+#include <asm/arch/gpio.h>
+#include <asm/arch/at91_pio.h>
+
+#include <nand.h>
+
+static void at91_nand_hwcontrol(struct mtd_info *mtd,
+ int cmd, unsigned int ctrl)
+{
+ struct nand_chip *this = mtd->priv;
+
+ if (ctrl & NAND_CTRL_CHANGE) {
+ ulong IO_ADDR_W = (ulong) this->IO_ADDR_W;
+ IO_ADDR_W &= ~(CONFIG_SYS_NAND_MASK_ALE
+ | CONFIG_SYS_NAND_MASK_CLE);
+
+ if (ctrl & NAND_CLE)
+ IO_ADDR_W |= CONFIG_SYS_NAND_MASK_CLE;
+ if (ctrl & NAND_ALE)
+ IO_ADDR_W |= CONFIG_SYS_NAND_MASK_ALE;
+
+ at91_set_gpio_value(CONFIG_SYS_NAND_ENABLE_PIN,
+ !(ctrl & NAND_NCE));
+ this->IO_ADDR_W = (void *) IO_ADDR_W;
+ }
+
+ if (cmd != NAND_CMD_NONE)
+ writeb(cmd, this->IO_ADDR_W);
+}
+
+#ifdef CONFIG_SYS_NAND_READY_PIN
+static int at91_nand_ready(struct mtd_info *mtd)
+{
+ return at91_get_gpio_value(CONFIG_SYS_NAND_READY_PIN);
+}
+#endif
+
+int board_nand_init(struct nand_chip *nand)
+{
+ nand->ecc.mode = NAND_ECC_SOFT;
+#ifdef CONFIG_SYS_NAND_DBW_16
+ nand->options = NAND_BUSWIDTH_16;
+#endif
+ nand->cmd_ctrl = at91_nand_hwcontrol;
+#ifdef CONFIG_SYS_NAND_READY_PIN
+ nand->dev_ready = at91_nand_ready;
+#endif
+ nand->chip_delay = 20;
+
+ return 0;
+}