* (C) Copyright 2008
* Sergei Poselenov, Emcraft Systems, sposelenov@emcraft.com.
*
- * 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 defined(CFG_NAND_BASE)
+#if defined(CONFIG_SYS_NAND_BASE)
#include <nand.h>
#include <asm/errno.h>
#include <asm/io.h>
static int state;
-static void nand_write_byte(struct mtd_info *mtd, u_char byte);
-static void nand_write_buf(struct mtd_info *mtd, const u_char *buf, int len);
-static u_char nand_read_byte(struct mtd_info *mtd);
-static u16 nand_read_word(struct mtd_info *mtd);
-static void nand_read_buf(struct mtd_info *mtd, u_char *buf, int len);
-static int nand_verify_buf(struct mtd_info *mtd, const u_char *buf, int len);
-static int nand_device_ready(struct mtd_info *mtdinfo);
+static void sc_nand_write_byte(struct mtd_info *mtd, u_char byte);
+static void sc_nand_write_buf(struct mtd_info *mtd, const u_char *buf, int len);
+static u_char sc_nand_read_byte(struct mtd_info *mtd);
+static u16 sc_nand_read_word(struct mtd_info *mtd);
+static void sc_nand_read_buf(struct mtd_info *mtd, u_char *buf, int len);
+#if defined(CONFIG_MTD_NAND_VERIFY_WRITE)
+static int sc_nand_verify_buf(struct mtd_info *mtd, const u_char *buf, int len);
+#endif
+static int sc_nand_device_ready(struct mtd_info *mtdinfo);
#define FPGA_NAND_CMD_MASK (0x7 << 28)
#define FPGA_NAND_CMD_COMMAND (0x0 << 28)
#define FPGA_NAND_DATA_SHIFT 16
/**
- * nand_write_byte - write one byte to the chip
+ * sc_nand_write_byte - write one byte to the chip
* @mtd: MTD device structure
* @byte: pointer to data byte to write
*/
-static void nand_write_byte(struct mtd_info *mtd, u_char byte)
+static void sc_nand_write_byte(struct mtd_info *mtd, u_char byte)
{
- nand_write_buf(mtd, (const uchar *)&byte, sizeof(byte));
+ sc_nand_write_buf(mtd, (const uchar *)&byte, sizeof(byte));
}
/**
- * nand_write_buf - write buffer to chip
+ * sc_nand_write_buf - write buffer to chip
* @mtd: MTD device structure
* @buf: data buffer
* @len: number of bytes to write
*/
-static void nand_write_buf(struct mtd_info *mtd, const u_char *buf, int len)
+static void sc_nand_write_buf(struct mtd_info *mtd, const u_char *buf, int len)
{
int i;
struct nand_chip *this = mtd->priv;
/**
- * nand_read_byte - read one byte from the chip
+ * sc_nand_read_byte - read one byte from the chip
* @mtd: MTD device structure
*/
-static u_char nand_read_byte(struct mtd_info *mtd)
+static u_char sc_nand_read_byte(struct mtd_info *mtd)
{
u8 byte;
- nand_read_buf(mtd, (uchar *)&byte, sizeof(byte));
+ sc_nand_read_buf(mtd, (uchar *)&byte, sizeof(byte));
return byte;
}
/**
- * nand_read_word - read one word from the chip
+ * sc_nand_read_word - read one word from the chip
* @mtd: MTD device structure
*/
-static u16 nand_read_word(struct mtd_info *mtd)
+static u16 sc_nand_read_word(struct mtd_info *mtd)
{
u16 word;
- nand_read_buf(mtd, (uchar *)&word, sizeof(word));
+ sc_nand_read_buf(mtd, (uchar *)&word, sizeof(word));
return word;
}
/**
- * nand_read_buf - read chip data into buffer
+ * sc_nand_read_buf - read chip data into buffer
* @mtd: MTD device structure
* @buf: buffer to store date
* @len: number of bytes to read
*/
-static void nand_read_buf(struct mtd_info *mtd, u_char *buf, int len)
+static void sc_nand_read_buf(struct mtd_info *mtd, u_char *buf, int len)
{
int i;
struct nand_chip *this = mtd->priv;
}
}
+#if defined(CONFIG_MTD_NAND_VERIFY_WRITE)
/**
- * nand_verify_buf - Verify chip data against buffer
+ * sc_nand_verify_buf - Verify chip data against buffer
* @mtd: MTD device structure
* @buf: buffer containing the data to compare
* @len: number of bytes to compare
*/
-static int nand_verify_buf(struct mtd_info *mtd, const u_char *buf, int len)
+static int sc_nand_verify_buf(struct mtd_info *mtd, const u_char *buf, int len)
{
int i;
for (i = 0; i < len; i++) {
- if (buf[i] != nand_read_byte(mtd));
+ if (buf[i] != sc_nand_read_byte(mtd));
return -EFAULT;
}
return 0;
}
+#endif
/**
- * nand_device_ready - Check the NAND device is ready for next command.
+ * sc_nand_device_ready - Check the NAND device is ready for next command.
* @mtd: MTD device structure
*/
-static int nand_device_ready(struct mtd_info *mtdinfo)
+static int sc_nand_device_ready(struct mtd_info *mtdinfo)
{
struct nand_chip *this = mtdinfo->priv;
}
/**
- * nand_hwcontrol - NAND control functions wrapper.
+ * sc_nand_hwcontrol - NAND control functions wrapper.
* @mtd: MTD device structure
* @cmd: Command
*/
-static void nand_hwcontrol(struct mtd_info *mtdinfo, int cmd, unsigned int ctrl)
+static void sc_nand_hwcontrol(struct mtd_info *mtdinfo, int cmd, unsigned int ctrl)
{
if (ctrl & NAND_CTRL_CHANGE) {
state &= ~(FPGA_NAND_CMD_MASK | FPGA_NAND_ENABLE);
}
if (cmd != NAND_CMD_NONE)
- nand_write_byte(mtdinfo, cmd);
+ sc_nand_write_byte(mtdinfo, cmd);
}
int board_nand_init(struct nand_chip *nand)
{
- nand->cmd_ctrl = nand_hwcontrol;
+ nand->cmd_ctrl = sc_nand_hwcontrol;
nand->ecc.mode = NAND_ECC_SOFT;
- nand->dev_ready = nand_device_ready;
- nand->read_byte = nand_read_byte;
- nand->read_word = nand_read_word;
- nand->write_buf = nand_write_buf;
- nand->read_buf = nand_read_buf;
- nand->verify_buf = nand_verify_buf;
+ nand->dev_ready = sc_nand_device_ready;
+ nand->read_byte = sc_nand_read_byte;
+ nand->read_word = sc_nand_read_word;
+ nand->write_buf = sc_nand_write_buf;
+ nand->read_buf = sc_nand_read_buf;
+#if defined(CONFIG_MTD_NAND_VERIFY_WRITE)
+ nand->verify_buf = sc_nand_verify_buf;
+#endif
return 0;
}
projects / karo-tx-uboot.git / blobdiff