* Thomas Gleixner
* Copyright 2006 IBM
*
- * 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>
#include <linux/mtd/nand_ecc.h>
#include <asm/processor.h>
#include <asm/io.h>
-#include <ppc4xx.h>
+#include <asm/ppc4xx.h>
+
+#ifndef CONFIG_SYS_NAND_BCR
+#define CONFIG_SYS_NAND_BCR 0x80002222
+#endif
+#ifndef CONFIG_SYS_NDFC_EBC0_CFG
+#define CONFIG_SYS_NDFC_EBC0_CFG 0xb8400000
+#endif
/*
* We need to store the info, which chip-select (CS) is used for the
/* The NDFC uses Smart Media (SMC) bytes order
*/
- ecc_code[0] = p[2];
- ecc_code[1] = p[1];
+ ecc_code[0] = p[1];
+ ecc_code[1] = p[2];
ecc_code[2] = p[3];
return 0;
*p++ = in_be32((u32 *)(base + NDFC_DATA));
}
-#ifndef CONFIG_NAND_SPL
/*
* Don't use these speedup functions in NAND boot image, since the image
* has to fit into 4kByte.
out_be32((u32 *)(base + NDFC_DATA), *p++);
}
+#if defined(CONFIG_MTD_NAND_VERIFY_WRITE)
static int ndfc_verify_buf(struct mtd_info *mtdinfo, const uint8_t *buf, int len)
{
struct nand_chip *this = mtdinfo->priv;
return 0;
}
-#endif /* #ifndef CONFIG_NAND_SPL */
+#endif
-#ifndef CONFIG_SYS_NAND_BCR
-#define CONFIG_SYS_NAND_BCR 0x80002222
+/*
+ * Read a byte from the NDFC.
+ */
+static uint8_t ndfc_read_byte(struct mtd_info *mtd)
+{
+
+ struct nand_chip *chip = mtd->priv;
+
+#ifdef CONFIG_SYS_NAND_BUSWIDTH_16BIT
+ return (uint8_t) readw(chip->IO_ADDR_R);
+#else
+ return readb(chip->IO_ADDR_R);
#endif
+}
+
void board_nand_select_device(struct nand_chip *nand, int chip)
{
/*
nand->ecc.mode = NAND_ECC_HW;
nand->ecc.size = 256;
nand->ecc.bytes = 3;
+ nand->ecc.strength = 1;
nand->select_chip = ndfc_select_chip;
-#ifndef CONFIG_NAND_SPL
+#ifdef CONFIG_SYS_NAND_BUSWIDTH_16BIT
+ nand->options |= NAND_BUSWIDTH_16;
+#endif
+
nand->write_buf = ndfc_write_buf;
+#if defined(CONFIG_MTD_NAND_VERIFY_WRITE)
nand->verify_buf = ndfc_verify_buf;
-#else
- /*
- * Setup EBC (CS0 only right now)
- */
- mtebc(EBC0_CFG, 0xb8400000);
-
- mtebc(pb0cr, CONFIG_SYS_EBC_PB0CR);
- mtebc(pb0ap, CONFIG_SYS_EBC_PB0AP);
#endif
+ nand->read_byte = ndfc_read_byte;
chip++;