nand/ppc4xx: Move PPC4xx NAND driver to common NAND driver directory

Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Scott Wood <scottwood@freescale.com>
Signed-off-by: Scott Wood <scottwood@freescale.com>

1 files changed, 0 insertions, 223 deletions

diff --git a/cpu/ppc4xx/ndfc.c b/cpu/ppc4xx/ndfc.c
deleted file mode 100644
index 971e2ae..0000000
--- a/cpu/ppc4xx/ndfc.c
+++ /dev/null
@@ -1,223 +0,0 @@
-/*
- * 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>
-
-#if defined(CONFIG_CMD_NAND) && !defined(CONFIG_NAND_LEGACY) && \
-    defined(CONFIG_NAND_NDFC)
-
-#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;
-}
-
-#endif