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-rw-r--r--drivers/mtd/nand/Makefile3
-rw-r--r--drivers/mtd/nand/davinci_nand.c2
-rw-r--r--drivers/mtd/nand/diskonchip.c3
-rw-r--r--drivers/mtd/nand/nand_util.c10
-rw-r--r--drivers/mtd/nand/ndfc.c217
5 files changed, 224 insertions, 11 deletions
diff --git a/drivers/mtd/nand/Makefile b/drivers/mtd/nand/Makefile
index a5680e8..89ccec2 100644
--- a/drivers/mtd/nand/Makefile
+++ b/drivers/mtd/nand/Makefile
@@ -26,14 +26,12 @@ include $(TOPDIR)/config.mk
LIB := $(obj)libnand.a
ifdef CONFIG_CMD_NAND
-ifndef CONFIG_NAND_LEGACY
COBJS-y += nand.o
COBJS-y += nand_base.o
COBJS-y += nand_bbt.o
COBJS-y += nand_ecc.o
COBJS-y += nand_ids.o
COBJS-y += nand_util.o
-endif
COBJS-$(CONFIG_NAND_ATMEL) += atmel_nand.o
COBJS-$(CONFIG_DRIVER_NAND_BFIN) += bfin_nand.o
@@ -42,6 +40,7 @@ COBJS-$(CONFIG_NAND_FSL_ELBC) += fsl_elbc_nand.o
COBJS-$(CONFIG_NAND_FSL_UPM) += fsl_upm.o
COBJS-$(CONFIG_NAND_KIRKWOOD) += kirkwood_nand.o
COBJS-$(CONFIG_NAND_MPC5121_NFC) += mpc5121_nfc.o
+COBJS-$(CONFIG_NAND_NDFC) += ndfc.o
COBJS-$(CONFIG_NAND_NOMADIK) += nomadik.o
COBJS-$(CONFIG_NAND_S3C2410) += s3c2410_nand.o
COBJS-$(CONFIG_NAND_S3C64XX) += s3c64xx.o
diff --git a/drivers/mtd/nand/davinci_nand.c b/drivers/mtd/nand/davinci_nand.c
index ca40c6a..7837a8e 100644
--- a/drivers/mtd/nand/davinci_nand.c
+++ b/drivers/mtd/nand/davinci_nand.c
@@ -182,7 +182,7 @@ static void nand_flash_init(void)
* knowledge of the clocks and what devices are hooked up ... and
* don't even do that unless no UBL handled it.
*/
-#ifdef CONFIG_SOC_DM6446
+#ifdef CONFIG_SOC_DM644X
u_int32_t acfg1 = 0x3ffffffc;
/*------------------------------------------------------------------*
diff --git a/drivers/mtd/nand/diskonchip.c b/drivers/mtd/nand/diskonchip.c
index e9dc4d1..edf3a099 100644
--- a/drivers/mtd/nand/diskonchip.c
+++ b/drivers/mtd/nand/diskonchip.c
@@ -19,8 +19,6 @@
#include <common.h>
-#if !defined(CONFIG_NAND_LEGACY)
-
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/sched.h>
@@ -1779,4 +1777,3 @@ module_exit(cleanup_nanddoc);
MODULE_LICENSE("GPL");
MODULE_AUTHOR("David Woodhouse <dwmw2@infradead.org>");
MODULE_DESCRIPTION("M-Systems DiskOnChip 2000, Millennium and Millennium Plus device driver\n");
-#endif
diff --git a/drivers/mtd/nand/nand_util.c b/drivers/mtd/nand/nand_util.c
index fc16282..694ead6 100644
--- a/drivers/mtd/nand/nand_util.c
+++ b/drivers/mtd/nand/nand_util.c
@@ -567,10 +567,10 @@ int nand_read_skip_bad(nand_info_t *nand, loff_t offset, size_t *length,
if (len_incl_bad == *length) {
rval = nand_read (nand, offset, length, buffer);
- if (rval != 0)
- printf ("NAND read from offset %llx failed %d\n",
- offset, rval);
-
+ if (!rval || rval == -EUCLEAN)
+ return 0;
+ printf ("NAND read from offset %llx failed %d\n",
+ offset, rval);
return rval;
}
@@ -591,7 +591,7 @@ int nand_read_skip_bad(nand_info_t *nand, loff_t offset, size_t *length,
read_length = nand->erasesize - block_offset;
rval = nand_read (nand, offset, &read_length, p_buffer);
- if (rval != 0) {
+ if (rval && rval != -EUCLEAN) {
printf ("NAND read from offset %llx failed %d\n",
offset, rval);
*length -= left_to_read;
diff --git a/drivers/mtd/nand/ndfc.c b/drivers/mtd/nand/ndfc.c
new file mode 100644
index 0000000..528b22b
--- /dev/null
+++ b/drivers/mtd/nand/ndfc.c
@@ -0,0 +1,217 @@
+/*
+ * Overview:
+ * Platform independend driver for NDFC (NanD Flash Controller)
+ * integrated into IBM/AMCC PPC4xx cores
+ *
+ * (C) Copyright 2006-2009
+ * Stefan Roese, DENX Software Engineering, sr@denx.de.
+ *
+ * Based on original work by
+ * 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
+ */
+
+#include <common.h>
+#include <nand.h>
+#include <linux/mtd/ndfc.h>
+#include <linux/mtd/nand_ecc.h>
+#include <asm/processor.h>
+#include <asm/io.h>
+#include <ppc4xx.h>
+
+/*
+ * We need to store the info, which chip-select (CS) is used for the
+ * chip number. For example on Sequoia NAND chip #0 uses
+ * CS #3.
+ */
+static int ndfc_cs[NDFC_MAX_BANKS];
+
+static void ndfc_hwcontrol(struct mtd_info *mtd, int cmd, unsigned int ctrl)
+{
+ struct nand_chip *this = mtd->priv;
+ ulong base = (ulong) this->IO_ADDR_W & 0xffffff00;
+
+ if (cmd == NAND_CMD_NONE)
+ return;
+
+ if (ctrl & NAND_CLE)
+ out_8((u8 *)(base + NDFC_CMD), cmd & 0xFF);
+ else
+ out_8((u8 *)(base + NDFC_ALE), cmd & 0xFF);
+}
+
+static int ndfc_dev_ready(struct mtd_info *mtdinfo)
+{
+ struct nand_chip *this = mtdinfo->priv;
+ ulong base = (ulong) this->IO_ADDR_W & 0xffffff00;
+
+ return (in_be32((u32 *)(base + NDFC_STAT)) & NDFC_STAT_IS_READY);
+}
+
+static void ndfc_enable_hwecc(struct mtd_info *mtdinfo, int mode)
+{
+ struct nand_chip *this = mtdinfo->priv;
+ ulong base = (ulong) this->IO_ADDR_W & 0xffffff00;
+ u32 ccr;
+
+ ccr = in_be32((u32 *)(base + NDFC_CCR));
+ ccr |= NDFC_CCR_RESET_ECC;
+ out_be32((u32 *)(base + NDFC_CCR), ccr);
+}
+
+static int ndfc_calculate_ecc(struct mtd_info *mtdinfo,
+ const u_char *dat, u_char *ecc_code)
+{
+ struct nand_chip *this = mtdinfo->priv;
+ ulong base = (ulong) this->IO_ADDR_W & 0xffffff00;
+ u32 ecc;
+ u8 *p = (u8 *)&ecc;
+
+ ecc = in_be32((u32 *)(base + NDFC_ECC));
+
+ /* The NDFC uses Smart Media (SMC) bytes order
+ */
+ ecc_code[0] = p[2];
+ ecc_code[1] = p[1];
+ ecc_code[2] = p[3];
+
+ return 0;
+}
+
+/*
+ * Speedups for buffer read/write/verify
+ *
+ * NDFC allows 32bit read/write of data. So we can speed up the buffer
+ * functions. No further checking, as nand_base will always read/write
+ * page aligned.
+ */
+static void ndfc_read_buf(struct mtd_info *mtdinfo, uint8_t *buf, int len)
+{
+ struct nand_chip *this = mtdinfo->priv;
+ ulong base = (ulong) this->IO_ADDR_W & 0xffffff00;
+ uint32_t *p = (uint32_t *) buf;
+
+ for (;len > 0; len -= 4)
+ *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.
+ */
+static void ndfc_write_buf(struct mtd_info *mtdinfo, const uint8_t *buf, int len)
+{
+ struct nand_chip *this = mtdinfo->priv;
+ ulong base = (ulong) this->IO_ADDR_W & 0xffffff00;
+ uint32_t *p = (uint32_t *) buf;
+
+ for (; len > 0; len -= 4)
+ out_be32((u32 *)(base + NDFC_DATA), *p++);
+}
+
+static int ndfc_verify_buf(struct mtd_info *mtdinfo, const uint8_t *buf, int len)
+{
+ struct nand_chip *this = mtdinfo->priv;
+ ulong base = (ulong) this->IO_ADDR_W & 0xffffff00;
+ uint32_t *p = (uint32_t *) buf;
+
+ for (; len > 0; len -= 4)
+ if (*p++ != in_be32((u32 *)(base + NDFC_DATA)))
+ return -1;
+
+ return 0;
+}
+#endif /* #ifndef CONFIG_NAND_SPL */
+
+#ifndef CONFIG_SYS_NAND_BCR
+#define CONFIG_SYS_NAND_BCR 0x80002222
+#endif
+
+void board_nand_select_device(struct nand_chip *nand, int chip)
+{
+ /*
+ * Don't use "chip" to address the NAND device,
+ * generate the cs from the address where it is encoded.
+ */
+ ulong base = (ulong)nand->IO_ADDR_W & 0xffffff00;
+ int cs = ndfc_cs[chip];
+
+ /* Set NandFlash Core Configuration Register */
+ /* 1 col x 2 rows */
+ out_be32((u32 *)(base + NDFC_CCR), 0x00000000 | (cs << 24));
+ out_be32((u32 *)(base + NDFC_BCFG0 + (cs << 2)), CONFIG_SYS_NAND_BCR);
+}
+
+static void ndfc_select_chip(struct mtd_info *mtd, int chip)
+{
+ /*
+ * Nothing to do here!
+ */
+}
+
+int board_nand_init(struct nand_chip *nand)
+{
+ int cs = (ulong)nand->IO_ADDR_W & 0x00000003;
+ ulong base = (ulong)nand->IO_ADDR_W & 0xffffff00;
+ static int chip = 0;
+
+ /*
+ * Save chip-select for this chip #
+ */
+ ndfc_cs[chip] = cs;
+
+ /*
+ * Select required NAND chip in NDFC
+ */
+ board_nand_select_device(nand, chip);
+
+ nand->IO_ADDR_R = (void __iomem *)(base + NDFC_DATA);
+ nand->IO_ADDR_W = (void __iomem *)(base + NDFC_DATA);
+ nand->cmd_ctrl = ndfc_hwcontrol;
+ nand->chip_delay = 50;
+ nand->read_buf = ndfc_read_buf;
+ nand->dev_ready = ndfc_dev_ready;
+ nand->ecc.correct = nand_correct_data;
+ nand->ecc.hwctl = ndfc_enable_hwecc;
+ nand->ecc.calculate = ndfc_calculate_ecc;
+ nand->ecc.mode = NAND_ECC_HW;
+ nand->ecc.size = 256;
+ nand->ecc.bytes = 3;
+ nand->select_chip = ndfc_select_chip;
+
+#ifndef CONFIG_NAND_SPL
+ nand->write_buf = ndfc_write_buf;
+ 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
+
+ chip++;
+
+ return 0;
+}
generated by cgit v1.1 at 2024-12-03 02:08:18 +0000