[U-Boot] [PATCH v2 07/12] mtd: nand: add Faraday FTNANDC021 NAND controller support

Kuo-Jung Su dantesu at gmail.com
Thu Apr 18 11:25:34 CEST 2013


From: Kuo-Jung Su <dantesu at faraday-tech.com>

Faraday FTNANDC021 is a integrated NAND flash controller.
It use a build-in command table to abstract the underlying
NAND flash control logic.

For example:

Issuing a command 0x10 to FTNANDC021 would result in
a page write + a read status operation.

Signed-off-by: Kuo-Jung Su <dantesu at faraday-tech.com>
CC: Scott Wood <scottwood at freescale.com>
---
 drivers/mtd/nand/Makefile     |    1 +
 drivers/mtd/nand/ftnandc021.c |  544 +++++++++++++++++++++++++++++++++++++++++
 drivers/mtd/nand/ftnandc021.h |  132 ++++++++++
 include/faraday/nand.h        |   16 ++
 4 files changed, 693 insertions(+)
 create mode 100644 drivers/mtd/nand/ftnandc021.c
 create mode 100644 drivers/mtd/nand/ftnandc021.h
 create mode 100644 include/faraday/nand.h

diff --git a/drivers/mtd/nand/Makefile b/drivers/mtd/nand/Makefile
index 35769c5..f6f89f0 100644
--- a/drivers/mtd/nand/Makefile
+++ b/drivers/mtd/nand/Makefile
@@ -63,6 +63,7 @@ COBJS-$(CONFIG_NAND_FSL_ELBC) += fsl_elbc_nand.o
 COBJS-$(CONFIG_NAND_FSL_IFC) += fsl_ifc_nand.o
 COBJS-$(CONFIG_NAND_FSL_UPM) += fsl_upm.o
 COBJS-$(CONFIG_NAND_FSMC) += fsmc_nand.o
+COBJS-$(CONFIG_NAND_FTNANDC021) += ftnandc021.o
 COBJS-$(CONFIG_NAND_JZ4740) += jz4740_nand.o
 COBJS-$(CONFIG_NAND_KB9202) += kb9202_nand.o
 COBJS-$(CONFIG_NAND_KIRKWOOD) += kirkwood_nand.o
diff --git a/drivers/mtd/nand/ftnandc021.c b/drivers/mtd/nand/ftnandc021.c
new file mode 100644
index 0000000..58863dc
--- /dev/null
+++ b/drivers/mtd/nand/ftnandc021.c
@@ -0,0 +1,544 @@
+/*
+ * Faraday NAND Flash Controller
+ *
+ * (C) Copyright 2010 Faraday Technology
+ * Dante Su <dantesu at faraday-tech.com>
+ *
+ * This file is released under the terms of GPL v2 and any later version.
+ * See the file COPYING in the root directory of the source tree for details.
+ */
+
+#include <common.h>
+#include <asm/io.h>
+#include <asm/unaligned.h>
+#include <nand.h>
+#include <malloc.h>
+
+#include "ftnandc021.h"
+
+/* common bitmask of nand flash status register */
+#define NAND_IOSTATUS_ERROR		BIT_MASK(0)
+#define NAND_IOSTATUS_READY		BIT_MASK(6)
+#define NAND_IOSTATUS_UNPROTCT	BIT_MASK(7)
+
+struct ftnandc021_chip {
+	void    *iobase;
+	uint32_t cmd;
+
+	uint32_t pgidx;
+
+	uint32_t off;
+	uint8_t  buf[256];
+
+	uint32_t adrc;	/* address cycle */
+	uint32_t pgsz;	/* page size */
+	uint32_t bksz;	/* block size */
+};
+
+/* Register access macros */
+#define NAND_READ(r)		le32_to_cpu(readl(r))
+#define NAND_WRITE(v, r)	writel(cpu_to_le32(v), r)
+#define NAND_SETBITS(m, r)	setbits_le32(r, m)
+#define NAND_CLRBITS(m, r)	clrbits_le32(r, m)
+
+static struct nand_ecclayout ftnandc021_oob_2k = {
+	.eccbytes = 24,
+	.eccpos = {
+		40, 41, 42, 43, 44, 45, 46, 47,
+		48, 49, 50, 51, 52, 53, 54, 55,
+		56, 57, 58, 59, 60, 61, 62, 63
+	},
+	.oobfree = {
+		{
+			.offset = 9,
+			.length = 3
+		}
+	}
+};
+
+static int
+ftnandc021_reset(struct nand_chip *chip)
+{
+	struct ftnandc021_chip *priv = chip->priv;
+	struct ftnandc021_regs *regs = priv->iobase;
+	uint32_t bk = 2;	/* 64 pages */
+	uint32_t pg = 1;	/* 2k */
+	uint32_t ac = 2;	/* 5 */
+
+#ifdef CONFIG_FTNANDC021_ACTIMING_1
+	NAND_WRITE(CONFIG_FTNANDC021_ACTIMING_1, &regs->atr[0]);
+#endif
+#ifdef CONFIG_FTNANDC021_ACTIMING_2
+	NAND_WRITE(CONFIG_FTNANDC021_ACTIMING_2, &regs->atr[1]);
+#endif
+
+	NAND_WRITE(0, &regs->ier);
+	NAND_WRITE(0, &regs->pir);
+	NAND_WRITE(0xff, &regs->bbiwr);
+	NAND_WRITE(0xffffffff, &regs->lsnwr);
+	NAND_WRITE(0xffffffff, &regs->crcwr);
+
+	if (chip->options & NAND_BUSWIDTH_16)
+		NAND_WRITE(FCR_SWCRC | FCR_IGNCRC | FCR_16BIT, &regs->fcr);
+	else
+		NAND_WRITE(FCR_SWCRC | FCR_IGNCRC, &regs->fcr);
+
+	/* chip reset */
+	NAND_WRITE(SRR_CHIP_RESET, &regs->srr);
+
+	/* wait until chip ready */
+	while (NAND_READ(&regs->srr) & SRR_CHIP_RESET)
+		;
+
+	switch (priv->bksz / priv->pgsz) {
+	case 16:
+		bk = 0;
+		break;
+	case 32:
+		bk = 1;
+		break;
+	case 64:
+		bk = 2;
+		break;
+	case 128:
+		bk = 3;
+		break;
+	}
+
+	switch (priv->pgsz) {
+	case 512:
+		pg = 0;
+		break;
+	case 2048:
+		pg = 1;
+		break;
+	case 4096:
+		pg = 2;
+		break;
+	}
+
+	switch (priv->adrc) {
+	case 3:
+		ac = 0;
+		break;
+	case 4:
+		ac = 1;
+		break;
+	case 5:
+		ac = 2;
+		break;
+	}
+
+	NAND_WRITE(MCR_ME(0) | MCR_32GB | (bk << 16) | (pg << 8) | (ac << 10),
+		&regs->mcr);
+
+	/* PIO mode */
+	NAND_WRITE(0, &regs->ior);
+
+	return 0;
+}
+
+static inline int
+ftnandc021_ckst(struct ftnandc021_chip *priv)
+{
+	struct ftnandc021_regs *regs = priv->iobase;
+	uint32_t st = NAND_READ(&regs->idr[1]);
+
+	if (st & NAND_IOSTATUS_ERROR)
+		return -NAND_IOSTATUS_ERROR;
+
+	if (!(st & NAND_IOSTATUS_READY))
+		return -NAND_IOSTATUS_READY;
+
+	if (!(st & NAND_IOSTATUS_UNPROTCT))
+		return -NAND_IOSTATUS_UNPROTCT;
+
+	return 0;
+}
+
+static inline int
+ftnandc021_wait(struct ftnandc021_chip *priv)
+{
+	struct ftnandc021_regs *regs = priv->iobase;
+	ulong ts;
+	int rc = -1;
+
+	for (ts = get_timer(0); get_timer(ts) < 200; ) {
+		if (!(NAND_READ(&regs->acr) & ACR_START)) {
+			rc = 0;
+			break;
+		}
+	}
+
+	return rc;
+}
+
+static int
+ftnandc021_command(struct ftnandc021_chip *priv, uint32_t cmd)
+{
+	struct ftnandc021_regs *regs = priv->iobase;
+	int ret = 0;
+
+	NAND_WRITE(ACR_START | ACR_CMD(cmd), &regs->acr);
+
+	/*
+	 * pgread    : (We have queued data at the IO port)
+	 * pgwrite   : nand_ckst (We have queued data at the IO port)
+	 * bkerase   : nand_wait + nand_ckst
+	 * oobwr     : nand_wait + nand_ckst
+	 * otherwise : nand_wait
+	 */
+	switch (cmd) {
+	case FTNANDC021_CMD_RDPG:
+		break;
+	case FTNANDC021_CMD_WRPG:
+		ret = ftnandc021_ckst(priv);
+		break;
+	case FTNANDC021_CMD_ERBLK:
+	case FTNANDC021_CMD_WROOB:
+		ret = ftnandc021_wait(priv) || ftnandc021_ckst(priv);
+		break;
+	default:
+		ret = ftnandc021_wait(priv);
+	}
+
+	return ret;
+}
+
+/*
+ * Check hardware register for wait status. Returns 1 if device is ready,
+ * 0 if it is still busy.
+ */
+static int
+ftnandc021_dev_ready(struct mtd_info *mtd)
+{
+	struct nand_chip *chip = mtd->priv;
+	struct ftnandc021_chip *priv = chip->priv;
+	int ret = 1;
+
+	if (ftnandc021_wait(priv) || ftnandc021_ckst(priv))
+		ret = 0;
+
+	return ret;
+}
+
+static void
+ftnandc021_read_oob(struct mtd_info *mtd, uint8_t * buf, int len)
+{
+	struct nand_chip *chip = mtd->priv;
+	struct ftnandc021_chip *priv = chip->priv;
+	struct ftnandc021_regs *regs = priv->iobase;
+	uint32_t tmp;
+
+	/*
+	 * Bad Block Information:
+	 * 1. Large Page(2048, 4096): off=0, len=2
+	 * 2. Small Page(512): off=5, len=1
+	 */
+	buf[0]  = NAND_READ(&regs->bbird) & 0xFF;
+	buf[1]  = 0xFF;
+
+	tmp     = NAND_READ(&regs->crcrd);
+	buf[8]  = (tmp >>  0) & 0xFF;
+	buf[9]  = (tmp >>  8) & 0xFF;
+	if (mtd->writesize >=  4096) {
+		buf[12] = (tmp >> 16) & 0xFF;
+		buf[13] = (tmp >> 24) & 0xFF;
+	}
+
+	tmp     = NAND_READ(&regs->lsnrd);
+	buf[10] = (tmp >>  0) & 0xFF;
+	buf[11] = (tmp >>  8) & 0xFF;
+	if (mtd->writesize >=  4096) {
+		buf[14] = (tmp >> 16) & 0xFF;
+		buf[15] = (tmp >> 24) & 0xFF;
+	}
+}
+
+static void
+ftnandc021_write_oob(struct mtd_info *mtd, const uint8_t * buf, int len)
+{
+	struct nand_chip *chip = mtd->priv;
+	struct ftnandc021_chip *priv = chip->priv;
+	struct ftnandc021_regs *regs = priv->iobase;
+	uint32_t tmp;
+
+	tmp = buf[0];
+	NAND_WRITE(tmp, &regs->bbiwr);
+
+	tmp = buf[8] | (buf[9] << 8);
+	if (mtd->writesize >=  4096)
+		tmp |= (buf[12] << 16) | (buf[13] << 24);
+	NAND_WRITE(tmp, &regs->crcwr);
+
+	tmp = buf[10] | (buf[11] << 8);
+	if (mtd->writesize >=  4096)
+		tmp |= (buf[14] << 16) | (buf[15] << 24);
+	NAND_WRITE(tmp, &regs->lsnwr);
+}
+
+static uint8_t
+ftnandc021_read_byte(struct mtd_info *mtd)
+{
+	struct nand_chip *chip = mtd->priv;
+	struct ftnandc021_chip *priv = chip->priv;
+	struct ftnandc021_regs *regs = priv->iobase;
+	uint8_t ret = 0xff;
+
+	switch (priv->cmd) {
+	case NAND_CMD_READID:
+	case NAND_CMD_READOOB:
+		ret = priv->buf[priv->off % 256];
+		priv->off += 1;
+		break;
+	case NAND_CMD_STATUS:
+		ret = (uint8_t)(NAND_READ(&regs->idr[1]) & 0xff);
+		break;
+	default:
+		debug("ftnandc021_read_byte: unknown cmd(0x%02X)\n",
+			priv->cmd);
+		break;
+	}
+
+	return ret;
+}
+
+static uint16_t
+ftnandc021_read_word(struct mtd_info *mtd)
+{
+	uint16_t ret = 0xffff;
+	uint8_t *buf = (uint8_t *)&ret;
+
+	buf[0] = ftnandc021_read_byte(mtd);
+	buf[1] = ftnandc021_read_byte(mtd);
+
+	return ret;
+}
+
+/**
+ * Read data from NAND controller into buffer
+ * @mtd: MTD device structure
+ * @buf: buffer to store date
+ * @len: number of bytes to read
+ */
+static void
+ftnandc021_read_buf(struct mtd_info *mtd, uint8_t *buf, int len)
+{
+	struct nand_chip *chip = mtd->priv;
+	struct ftnandc021_chip *priv = chip->priv;
+	struct ftnandc021_regs *regs = priv->iobase;
+	ulong off;
+
+	/* oob read */
+	if (len <= mtd->oobsize) {
+		ftnandc021_read_oob(mtd, buf, len);
+		return;
+	}
+
+	/* page read */
+	for (off = 0; len > 0; len -= 4, off += 4) {
+		while (!(NAND_READ(&regs->ior) & IOR_READY))
+			;
+		*(uint32_t *)(buf + off) = NAND_READ(&regs->dr);
+	}
+
+	if (ftnandc021_wait(priv))
+		printf("ftnandc021_read_buf: cmd(0x%x) timeout\n", priv->cmd);
+}
+
+/**
+ * Write buffer to NAND controller
+ * @mtd: MTD device structure
+ * @buf: data buffer
+ * @len: number of bytes to write
+ */
+static void
+ftnandc021_write_buf(struct mtd_info *mtd, const uint8_t *buf, int len)
+{
+	struct nand_chip *chip = mtd->priv;
+	struct ftnandc021_chip *priv = chip->priv;
+	struct ftnandc021_regs *regs = priv->iobase;
+	ulong off;
+
+	/* 1. oob write */
+	if (len <= mtd->oobsize)
+		return;
+
+	/* 2. page write */
+	for (off = 0; len > 0; len -= 4, off += 4) {
+		while (!(NAND_READ(&regs->ior) & IOR_READY))
+			;
+		NAND_WRITE(*(uint32_t *)(buf + off), &regs->dr);
+	}
+
+	/* 3. wait until command finish */
+	if (ftnandc021_wait(priv))
+		printf("ftnandc021_write_buf: write fail\n");
+}
+
+/**
+ * Verify chip data against buffer
+ * @mtd: MTD device structure
+ * @buf: buffer containing the data to compare
+ * @len: number of bytes to compare
+ */
+static int
+ftnandc021_verify_buf(struct mtd_info *mtd, const uint8_t *buf, int len)
+{
+	int rc = 0;
+	uint8_t *tmp;
+
+	len = min_t(int, len, mtd->writesize);
+	tmp = malloc(mtd->writesize);
+
+	if (!tmp) {
+		printf("ftnandc021_verify_buf: out of memory\n");
+		return -1;
+	} else {
+		ftnandc021_read_buf(mtd, tmp, len);
+		if (memcmp(tmp, buf, len))
+			rc = -2;
+	}
+
+	free(tmp);
+	return rc;
+}
+
+static void
+ftnandc021_cmdfunc(struct mtd_info *mtd, unsigned cmd, int column, int pgidx)
+{
+	struct nand_chip *chip = mtd->priv;
+	struct ftnandc021_chip *priv = chip->priv;
+	struct ftnandc021_regs *regs = priv->iobase;
+
+	priv->cmd   = cmd;
+	priv->pgidx = pgidx;
+
+	switch (cmd) {
+	case NAND_CMD_READID:	/* 0x90 */
+		if (ftnandc021_command(priv, FTNANDC021_CMD_RDID)) {
+			printf("ftnandc021: RDID failed.\n");
+		} else {
+			put_unaligned_le32(NAND_READ(&regs->idr[0]),
+				priv->buf);
+			put_unaligned_le32(NAND_READ(&regs->idr[1]),
+				priv->buf + 4);
+			priv->off = 0;
+		}
+		break;
+
+	case NAND_CMD_READ0:	/* 0x00 */
+		NAND_WRITE(pgidx, &regs->pir);
+		NAND_WRITE(1, &regs->pcr);
+		if (ftnandc021_command(priv, FTNANDC021_CMD_RDPG))
+			printf("ftnandc021: RDPG failed.\n");
+		break;
+
+	case NAND_CMD_READOOB:	/* 0x50 */
+		NAND_WRITE(pgidx, &regs->pir);
+		NAND_WRITE(1, &regs->pcr);
+		if (ftnandc021_command(priv, FTNANDC021_CMD_RDOOB)) {
+			printf("ftnandc021: RDOOB failed.\n");
+		} else {
+			ftnandc021_read_oob(mtd, priv->buf, mtd->oobsize);
+			priv->off = 0;
+		}
+		break;
+
+	case NAND_CMD_ERASE1:	/* 0x60 */
+		NAND_WRITE(pgidx, &regs->pir);
+		NAND_WRITE(1, &regs->pcr);
+		break;
+
+	case NAND_CMD_ERASE2:	/* 0xD0 */
+		if (ftnandc021_command(priv, FTNANDC021_CMD_ERBLK))
+			printf("ftnandc021: ERBLK failed\n");
+		break;
+
+	case NAND_CMD_STATUS:	/* 0x70 */
+		if (ftnandc021_command(priv, FTNANDC021_CMD_RDST))
+			printf("ftnandc021: RDST failed\n");
+		break;
+
+	case NAND_CMD_SEQIN:	/* 0x80 (Write Stage 1.) */
+		NAND_WRITE(pgidx, &regs->pir);
+		NAND_WRITE(1, &regs->pcr);
+
+		ftnandc021_write_oob(mtd, chip->oob_poi, mtd->writesize);
+		if (column >= mtd->writesize) {
+			if (ftnandc021_command(priv, FTNANDC021_CMD_WROOB))
+				printf("ftnandc021: WROOB failed\n");
+		} else {
+			if (ftnandc021_command(priv, FTNANDC021_CMD_WRPG))
+				printf("ftnandc021: WRPG failed\n");
+		}
+		break;
+
+	case NAND_CMD_PAGEPROG:	/* 0x10 (Write Stage 2.) */
+		break;
+
+	case NAND_CMD_RESET:	/* 0xFF */
+		if (ftnandc021_command(priv, FTNANDC021_CMD_RESET))
+			printf("ftnandc021: RESET failed.\n");
+		break;
+
+	default:
+		printf("ftnandc021: Unknown cmd=0x%x\n", cmd);
+	}
+}
+
+/**
+ * hardware specific access to control-lines
+ * @mtd: MTD device structure
+ * @cmd: command to device
+ * @ctrl:
+ * NAND_NCE: bit 0 -> don't care
+ * NAND_CLE: bit 1 -> Command Latch
+ * NAND_ALE: bit 2 -> Address Latch
+ *
+ * NOTE: boards may use different bits for these!!
+ */
+static void
+ftnandc021_hwcontrol(struct mtd_info *mtd, int cmd, unsigned int ctrl)
+{
+}
+
+int
+ftnandc021_probe(struct nand_chip *chip)
+{
+	struct ftnandc021_chip *priv;
+
+	priv = malloc(sizeof(struct ftnandc021_chip));
+	if (!priv)
+		return -1;
+
+	memset(priv, 0, sizeof(*priv));
+	priv->iobase = (void *)CONFIG_NAND_FTNANDC021_BASE;
+	priv->adrc   = (unsigned int)chip->priv;
+	priv->pgsz   = 1 << chip->page_shift;
+	priv->bksz   = 1 << chip->phys_erase_shift;
+
+	chip->priv       = priv;
+	chip->cmd_ctrl   = ftnandc021_hwcontrol;
+	chip->cmdfunc    = ftnandc021_cmdfunc;
+	chip->dev_ready  = ftnandc021_dev_ready;
+	chip->chip_delay = 0;
+
+	chip->read_byte  = ftnandc021_read_byte;
+	chip->read_word  = ftnandc021_read_word;
+	chip->read_buf   = ftnandc021_read_buf;
+	chip->write_buf  = ftnandc021_write_buf;
+	chip->verify_buf = ftnandc021_verify_buf;
+
+	chip->ecc.mode   = NAND_ECC_NONE;
+	chip->ecc.layout = &ftnandc021_oob_2k;
+
+	chip->options    |= NAND_NO_AUTOINCR;
+
+	ftnandc021_reset(chip);
+
+	debug("ftnandc021: pg=%dK, bk=%dK, adrc=%d\n",
+		   priv->pgsz >> 10, priv->bksz >> 10, priv->adrc);
+
+	return 0;
+}
diff --git a/drivers/mtd/nand/ftnandc021.h b/drivers/mtd/nand/ftnandc021.h
new file mode 100644
index 0000000..b8274c8
--- /dev/null
+++ b/drivers/mtd/nand/ftnandc021.h
@@ -0,0 +1,132 @@
+/*
+ * Faraday NAND Flash Controller
+ *
+ * (C) Copyright 2010 Faraday Technology
+ * Dante Su <dantesu at faraday-tech.com>
+ *
+ * This file is released under the terms of GPL v2 and any later version.
+ * See the file COPYING in the root directory of the source tree for details.
+ */
+
+#ifndef _FTNANDC021_H
+#define _FTNANDC021_H
+
+/* NANDC control registers */
+struct ftnandc021_regs {
+ /* 0x000 ~ 0x0fc */
+	uint32_t ecc_pr[4]; /* ECC Parity Register */
+	uint32_t ecc_sr; /* ECC Status Register */
+	uint32_t rsvd0[59];
+
+ /* 0x100 ~ 0x1fc */
+	uint32_t sr;	 /* Status Register */
+	uint32_t acr;	 /* Access Control Register */
+	uint32_t fcr;	 /* Flow Control Register */
+	uint32_t pir;	 /* Page Index Register */
+	uint32_t mcr;	 /* Memory Configuration Register */
+	uint32_t atr[2]; /* AC Timing Register */
+	uint32_t rsvd1[1];
+	uint32_t idr[2]; /* Device ID Register */
+	uint32_t ier;	 /* Interrupt Enable Register */
+	uint32_t iscr;	 /* Interrupt Status Clear Register */
+	uint32_t rsvd2[4];
+	uint32_t bbiwr;	 /* Bad Block Info Write */
+	uint32_t lsnwr;	 /* LSN Write */
+	uint32_t crcwr;	 /* LSN CRC Write */
+	uint32_t lsni;	 /* LSN Initialize */
+	uint32_t bbird;	 /* Bad Block Info Read */
+	uint32_t lsnrd;	 /* LSN Read */
+	uint32_t crcrd;	 /* CRC Read */
+	uint32_t rsvd3[41];
+
+ /* 0x200 ~ 0x2fc */
+	uint32_t rsvd4[1];
+	uint32_t icr;	 /* BMC Interrupt Control Register */
+	uint32_t ior;	 /* BMC PIO Status Register */
+	uint32_t bcr;	 /* BMC Burst Control Register */
+	uint32_t rsvd5[60];
+
+ /* 0x300 ~ 0x3fc */
+	uint32_t dr;	 /* MLC Data Register */
+	uint32_t isr;	 /* MLC Interrupt Status Register */
+	uint32_t pcr;	 /* Page Count Register */
+	uint32_t srr;	 /* MLC Software Reset Register */
+	uint32_t rsvd7[58];
+	uint32_t revr;	 /* Revision Register */
+	uint32_t cfgr;	 /* Configuration Register */
+};
+
+/* bit mask */
+#define SR_BLANK         BIT_MASK(7)  /* blanking check failed */
+#define SR_ECC           BIT_MASK(6)  /* ecc failed */
+#define SR_STS           BIT_MASK(4)  /* status error */
+#define SR_CRC           BIT_MASK(3)  /* crc error */
+#define SR_CMD           BIT_MASK(2)  /* command finished */
+#define SR_BUSY          BIT_MASK(1)  /* chip busy */
+#define SR_ENA           BIT_MASK(0)  /* chip enabled */
+
+#define ACR_CMD(x)       (((x) & 0x1f) << 8) /* command code */
+#define ACR_START        BIT_MASK(7)  /* command start */
+
+#define FCR_SWCRC        BIT_MASK(8)  /* CRC controlled by Software */
+#define FCR_IGNCRC       BIT_MASK(7)  /* Bypass/Ignore CRC checking */
+#define FCR_16BIT        BIT_MASK(4)  /* 16 bit data bus */
+#define FCR_WPROT        BIT_MASK(3)  /* write protected */
+#define FCR_NOSC         BIT_MASK(2)  /* bypass status check error */
+#define FCR_MICRON       BIT_MASK(1)  /* Micron 2-plane command */
+#define FCR_NOBC         BIT_MASK(0)  /* skip blanking check error */
+
+#define IER_ENA          BIT_MASK(7)  /* interrupt enabled */
+#define IER_ECC          BIT_MASK(3)  /* ecc error timeout */
+#define IER_STS          BIT_MASK(2)  /* status error */
+#define IER_CRC          BIT_MASK(1)  /* crc error */
+#define IER_CMD          BIT_MASK(0)  /* command finished */
+
+#define IOR_READY        BIT_MASK(0)  /* PIO ready */
+
+#define SRR_ECC_ENABLED  BIT_MASK(8)  /* ECC enabled */
+#define SRR_NANDC_RESET  BIT_MASK(2)  /* NANDC reset */
+#define SRR_BMC_RESET    BIT_MASK(1)  /* BMC reset */
+#define SRR_ECC_RESET    BIT_MASK(0)  /* ECC reset */
+#define SRR_CHIP_RESET   (SRR_NANDC_RESET | SRR_BMC_RESET | SRR_ECC_RESET)
+
+#define MCR_BS16P        (0 << 16) /* page count per block */
+#define MCR_BS32P        (1 << 16)
+#define MCR_BS64P        (2 << 16)
+#define MCR_BS128P       (3 << 16)
+#define MCR_1PLANE       (0 << 14) /* memory architecture */
+#define MCR_2PLANE       (1 << 14)
+#define MCR_SERIAL       (0 << 12) /* interleaving: off, 2 flash, 4 flash */
+#define MCR_IL2          (1 << 12)
+#define MCR_IL4          (2 << 12)
+#define MCR_ALEN3        (0 << 10) /* address length */
+#define MCR_ALEN4        (1 << 10)
+#define MCR_ALEN5        (2 << 10)
+#define MCR_PS512        (0 << 8)  /* size per page (bytes) */
+#define MCR_PS2048       (1 << 8)
+#define MCR_PS4096       (2 << 8)
+#define MCR_16MB         (0 << 4)  /* flash size */
+#define MCR_32MB         (1 << 4)
+#define MCR_64MB         (2 << 4)
+#define MCR_128MB        (3 << 4)
+#define MCR_256MB        (4 << 4)
+#define MCR_512MB        (5 << 4)
+#define MCR_1GB          (6 << 4)
+#define MCR_2GB          (7 << 4)
+#define MCR_4GB          (8 << 4)
+#define MCR_8GB          (9 << 4)
+#define MCR_16GB         (10 << 4)
+#define MCR_32GB         (11 << 4)
+#define MCR_ME(n)        (1 << (n)) /* module enable, 0 <= n <= 3 */
+
+/* FTNANDC021 integrated command set */
+#define FTNANDC021_CMD_RDID  0x01   /* read id */
+#define FTNANDC021_CMD_RESET 0x02
+#define FTNANDC021_CMD_RDST  0x04   /* read status */
+#define FTNANDC021_CMD_RDPG  0x05   /* read page (data + oob) */
+#define FTNANDC021_CMD_RDOOB 0x06   /* read oob */
+#define FTNANDC021_CMD_WRPG  0x10   /* write page (data + oob) */
+#define FTNANDC021_CMD_ERBLK 0x11   /* erase block */
+#define FTNANDC021_CMD_WROOB 0x13   /* write oob */
+
+#endif
diff --git a/include/faraday/nand.h b/include/faraday/nand.h
new file mode 100644
index 0000000..6d8efb2
--- /dev/null
+++ b/include/faraday/nand.h
@@ -0,0 +1,16 @@
+/*
+ * Faraday NAND Flash Controller
+ *
+ * (C) Copyright 2010 Faraday Technology
+ * Dante Su <dantesu at faraday-tech.com>
+ *
+ * This file is released under the terms of GPL v2 and any later version.
+ * See the file COPYING in the root directory of the source tree for details.
+ */
+
+#ifndef _FARADAY_NAND_H
+#define _FARADAY_NAND_H
+
+int ftnandc021_probe(struct nand_chip *chip);
+
+#endif /* _FARADAY_NAND_H */
--
1.7.9.5



More information about the U-Boot mailing list