X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;f=board%2Fprodrive%2Falpr%2Fnand.c;h=50e8d82b4b38efcbe9af59981fd05a1fbbe3650b;hb=3765b3e7bd0f8e46914d417f29cbcb0c72b1acf7;hp=e63c921eff592a347b8306e79c9c75d3b3459f4f;hpb=d3bb5ec198edad4869ac5276a5899881b7bf5433;p=u-boot

diff --git a/board/prodrive/alpr/nand.c b/board/prodrive/alpr/nand.c
index e63c921eff..50e8d82b4b 100644
--- a/board/prodrive/alpr/nand.c
+++ b/board/prodrive/alpr/nand.c
@@ -5,28 +5,12 @@
  * (C) Copyright 2006
  * Stefan Roese, DENX Software Engineering, sr@denx.de.
  *
- * 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
+ * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>
 
-#if (CONFIG_COMMANDS & CFG_CMD_NAND)
+#if defined(CONFIG_CMD_NAND)
 
 #include <asm/processor.h>
 #include <nand.h>
@@ -56,43 +40,24 @@ static struct alpr_ndfc_regs *alpr_ndfc = NULL;
  *
  * There are 2 NAND devices on the board, a Hynix HY27US08561A (1 GByte).
  */
-static void alpr_nand_hwcontrol(struct mtd_info *mtd, int cmd)
-{
-	switch (cmd) {
-	case NAND_CTL_SETCLE:
-		hwctl |= 0x1;
-		break;
-	case NAND_CTL_CLRCLE:
-		hwctl &= ~0x1;
-		break;
-	case NAND_CTL_SETALE:
-		hwctl |= 0x2;
-		break;
-	case NAND_CTL_CLRALE:
-		hwctl &= ~0x2;
-		break;
-	case NAND_CTL_SETNCE:
-		break;
-	case NAND_CTL_CLRNCE:
-		writeb(0x00, &(alpr_ndfc->term));
-		break;
-	}
-}
-
-static void alpr_nand_write_byte(struct mtd_info *mtd, u_char byte)
+static void alpr_nand_hwcontrol(struct mtd_info *mtd, int cmd, unsigned int ctrl)
 {
-	struct nand_chip *nand = mtd->priv;
+	struct nand_chip *this = mtd->priv;
 
-	if (hwctl & 0x1)
-		/*
-		 * IO_ADDR_W used as CMD[i] reg to support multiple NAND
-		 * chips.
-		 */
-		writeb(byte, nand->IO_ADDR_W);
-	else if (hwctl & 0x2) {
-		writeb(byte, &(alpr_ndfc->addr_wait));
-	} else
-		writeb(byte, &(alpr_ndfc->data));
+	if (ctrl & NAND_CTRL_CHANGE) {
+		if ( ctrl & NAND_CLE )
+			hwctl |= 0x1;
+		else
+			hwctl &= ~0x1;
+		if ( ctrl & NAND_ALE )
+			hwctl |= 0x2;
+		else
+			hwctl &= ~0x2;
+		if ( (ctrl & NAND_NCE) != NAND_NCE)
+			writeb(0x00, &(alpr_ndfc->term));
+	}
+	if (cmd != NAND_CMD_NONE)
+		writeb(cmd, this->IO_ADDR_W);
 }
 
 static u_char alpr_nand_read_byte(struct mtd_info *mtd)
@@ -141,12 +106,10 @@ static int alpr_nand_verify_buf(struct mtd_info *mtd, const u_char *buf, int len
 
 static int alpr_nand_dev_ready(struct mtd_info *mtd)
 {
-	volatile u_char val;
-
 	/*
 	 * Blocking read to wait for NAND to be ready
 	 */
-	val = readb(&(alpr_ndfc->addr_wait));
+	(void)readb(&(alpr_ndfc->addr_wait));
 
 	/*
 	 * Return always true
@@ -154,20 +117,20 @@ static int alpr_nand_dev_ready(struct mtd_info *mtd)
 	return 1;
 }
 
-void board_nand_init(struct nand_chip *nand)
+int board_nand_init(struct nand_chip *nand)
 {
-	alpr_ndfc = (struct alpr_ndfc_regs *)CFG_NAND_BASE;
+	alpr_ndfc = (struct alpr_ndfc_regs *)CONFIG_SYS_NAND_BASE;
 
-	nand->eccmode = NAND_ECC_SOFT;
+	nand->ecc.mode = NAND_ECC_SOFT;
 
 	/* Reference hardware control function */
-	nand->hwcontrol  = alpr_nand_hwcontrol;
-	/* Set command delay time */
-	nand->write_byte = alpr_nand_write_byte;
+	nand->cmd_ctrl  = alpr_nand_hwcontrol;
 	nand->read_byte  = alpr_nand_read_byte;
 	nand->write_buf  = alpr_nand_write_buf;
 	nand->read_buf   = alpr_nand_read_buf;
 	nand->verify_buf = alpr_nand_verify_buf;
 	nand->dev_ready  = alpr_nand_dev_ready;
+
+	return 0;
 }
 #endif