Merge branch 'master' of git://git.denx.de/u-boot-mpc85xx

1 files changed, 65 insertions, 0 deletions

diff --git a/board/xes/common/actl_nand.c b/board/xes/common/actl_nand.c
new file mode 100644
index 0000000..465aeb0
--- /dev/null
+++ b/board/xes/common/actl_nand.c
@@ -0,0 +1,65 @@
+/*
+ * Copyright 2008 Extreme Engineering Solutions, Inc.
+ *
+ * This driver support NAND devices which have address lines
+ * connected as ALE and CLE inputs.
+ *
+ * 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 <nand.h>
+#include <asm/io.h>
+
+/*
+ * Hardware specific access to control-lines
+ */
+static void nand_addr_hwcontrol(struct mtd_info *mtd, int cmd, uint ctrl)
+{
+	struct nand_chip *this = mtd->priv;
+	ulong IO_ADDR_W;
+
+	if (ctrl & NAND_CTRL_CHANGE) {
+		IO_ADDR_W = (ulong)this->IO_ADDR_W;
+
+		IO_ADDR_W &= ~(CONFIG_SYS_NAND_ACTL_CLE |
+				CONFIG_SYS_NAND_ACTL_ALE |
+				CONFIG_SYS_NAND_ACTL_NCE);
+		if (ctrl & NAND_CLE)
+			IO_ADDR_W |= CONFIG_SYS_NAND_ACTL_CLE;
+		if (ctrl & NAND_ALE)
+			IO_ADDR_W |= CONFIG_SYS_NAND_ACTL_ALE;
+		if (ctrl & NAND_NCE)
+			IO_ADDR_W |= CONFIG_SYS_NAND_ACTL_NCE;
+
+		this->IO_ADDR_W = (void *)IO_ADDR_W;
+	}
+
+	if (cmd != NAND_CMD_NONE)
+		writeb(cmd, this->IO_ADDR_W);
+}
+
+int board_nand_init(struct nand_chip *nand)
+{
+	nand->ecc.mode = NAND_ECC_SOFT;
+	nand->cmd_ctrl = nand_addr_hwcontrol;
+	nand->chip_delay = CONFIG_SYS_NAND_ACTL_DELAY;
+
+	return 0;
+}