Patchwork [U-Boot,V5,3/3] mtd/NAND: Remove obsolete SPEAr specific NAND drivers

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Submitter Amit Virdi
Date May 22, 2012, 10:15 a.m.
Message ID <c4cb4e214d1f4aa71233830b4c067e2d8433fe39.1337681419.git.amit.virdi@st.com>
Download mbox | patch
Permalink /patch/160585/
State Superseded
Headers show

Comments

Amit Virdi - May 22, 2012, 10:15 a.m.
From: Vipin KUMAR <vipin.kumar@st.com>

Since, SPEAr platform uses generic FSMC driver now, so spear specific files
drivers/mtd/nand/spr_nand.c, arch/arm/include/asm/arch-spear/spr_nand.h are
removed

Signed-off-by: Vipin Kumar <vipin.kumar@st.com>
Signed-off-by: Amit Virdi <amit.virdi@st.com>
---
 arch/arm/include/asm/arch-spear/spr_nand.h |   57 -------------
 drivers/mtd/nand/spr_nand.c                |  124 ----------------------------
 2 files changed, 0 insertions(+), 181 deletions(-)
 delete mode 100644 arch/arm/include/asm/arch-spear/spr_nand.h
 delete mode 100644 drivers/mtd/nand/spr_nand.c

Patch

diff --git a/arch/arm/include/asm/arch-spear/spr_nand.h b/arch/arm/include/asm/arch-spear/spr_nand.h
deleted file mode 100644
index 2b63dc7..0000000
--- a/arch/arm/include/asm/arch-spear/spr_nand.h
+++ /dev/null
@@ -1,57 +0,0 @@ 
-/*
- * (C) Copyright 2009
- * Vipin Kumar, ST Micoelectronics, vipin.kumar@st.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
- */
-
-#ifndef __SPR_NAND_H__
-#define __SPR_NAND_H__
-
-struct fsmc_regs {
-	u32 reserved_1[0x10];
-	u32 genmemctrl_pc;
-	u32 reserved_2;
-	u32 genmemctrl_comm;
-	u32 genmemctrl_attrib;
-	u32 reserved_3;
-	u32 genmemctrl_ecc;
-};
-
-/* genmemctrl_pc register definitions */
-#define FSMC_RESET		(1 << 0)
-#define FSMC_WAITON		(1 << 1)
-#define FSMC_ENABLE		(1 << 2)
-#define FSMC_DEVTYPE_NAND	(1 << 3)
-#define FSMC_DEVWID_8		(0 << 4)
-#define FSMC_DEVWID_16		(1 << 4)
-#define FSMC_ECCEN		(1 << 6)
-#define FSMC_ECCPLEN_512	(0 << 7)
-#define FSMC_ECCPLEN_256	(1 << 7)
-#define FSMC_TCLR_1		(1 << 9)
-#define FSMC_TAR_1		(1 << 13)
-
-/* genmemctrl_comm register definitions */
-#define FSMC_TSET_0		(0 << 0)
-#define FSMC_TWAIT_6		(6 << 8)
-#define FSMC_THOLD_4		(4 << 16)
-#define FSMC_THIZ_1		(1 << 24)
-
-extern int spear_nand_init(struct nand_chip *nand);
-#endif
diff --git a/drivers/mtd/nand/spr_nand.c b/drivers/mtd/nand/spr_nand.c
deleted file mode 100644
index 097d0c6..0000000
--- a/drivers/mtd/nand/spr_nand.c
+++ /dev/null
@@ -1,124 +0,0 @@ 
-/*
- * (C) Copyright 2009
- * Vipin Kumar, ST Micoelectronics, vipin.kumar@st.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
- */
-
-#include <common.h>
-#include <nand.h>
-#include <linux/mtd/nand_ecc.h>
-#include <asm/io.h>
-#include <asm/arch/hardware.h>
-#include <asm/arch/spr_nand.h>
-
-static struct fsmc_regs *const fsmc_regs_p =
-    (struct fsmc_regs *)CONFIG_SPEAR_FSMCBASE;
-
-static struct nand_ecclayout spear_nand_ecclayout = {
-	.eccbytes = 24,
-	.eccpos = {2, 3, 4, 18, 19, 20, 34, 35, 36, 50, 51, 52,
-		   66, 67, 68, 82, 83, 84, 98, 99, 100, 114, 115, 116},
-	.oobfree = {
-		    {.offset = 8, .length = 8},
-		    {.offset = 24, .length = 8},
-		    {.offset = 40, .length = 8},
-		    {.offset = 56, .length = 8},
-		    {.offset = 72, .length = 8},
-		    {.offset = 88, .length = 8},
-		    {.offset = 104, .length = 8},
-		    {.offset = 120, .length = 8}
-		    }
-};
-
-static void spear_nand_hwcontrol(struct mtd_info *mtd, int cmd, uint ctrl)
-{
-	struct nand_chip *this = mtd->priv;
-	ulong IO_ADDR_W;
-
-	if (ctrl & NAND_CTRL_CHANGE) {
-		IO_ADDR_W = (ulong)this->IO_ADDR_W;
-
-		IO_ADDR_W &= ~(CONFIG_SYS_NAND_CLE | CONFIG_SYS_NAND_ALE);
-		if (ctrl & NAND_CLE)
-			IO_ADDR_W |= CONFIG_SYS_NAND_CLE;
-		if (ctrl & NAND_ALE)
-			IO_ADDR_W |= CONFIG_SYS_NAND_ALE;
-
-		if (ctrl & NAND_NCE) {
-			writel(readl(&fsmc_regs_p->genmemctrl_pc) |
-			       FSMC_ENABLE, &fsmc_regs_p->genmemctrl_pc);
-		} else {
-			writel(readl(&fsmc_regs_p->genmemctrl_pc) &
-			       ~FSMC_ENABLE, &fsmc_regs_p->genmemctrl_pc);
-		}
-		this->IO_ADDR_W = (void *)IO_ADDR_W;
-	}
-
-	if (cmd != NAND_CMD_NONE)
-		writeb(cmd, this->IO_ADDR_W);
-}
-
-static int spear_read_hwecc(struct mtd_info *mtd,
-			    const u_char *data, u_char ecc[3])
-{
-	u_int ecc_tmp;
-
-	/* read the h/w ECC */
-	ecc_tmp = readl(&fsmc_regs_p->genmemctrl_ecc);
-
-	ecc[0] = (u_char) (ecc_tmp & 0xFF);
-	ecc[1] = (u_char) ((ecc_tmp & 0xFF00) >> 8);
-	ecc[2] = (u_char) ((ecc_tmp & 0xFF0000) >> 16);
-
-	return 0;
-}
-
-void spear_enable_hwecc(struct mtd_info *mtd, int mode)
-{
-	writel(readl(&fsmc_regs_p->genmemctrl_pc) & ~0x80,
-	       &fsmc_regs_p->genmemctrl_pc);
-	writel(readl(&fsmc_regs_p->genmemctrl_pc) & ~FSMC_ECCEN,
-	       &fsmc_regs_p->genmemctrl_pc);
-	writel(readl(&fsmc_regs_p->genmemctrl_pc) | FSMC_ECCEN,
-	       &fsmc_regs_p->genmemctrl_pc);
-}
-
-int spear_nand_init(struct nand_chip *nand)
-{
-	writel(FSMC_DEVWID_8 | FSMC_DEVTYPE_NAND | FSMC_ENABLE | FSMC_WAITON,
-	       &fsmc_regs_p->genmemctrl_pc);
-	writel(readl(&fsmc_regs_p->genmemctrl_pc) | FSMC_TCLR_1 | FSMC_TAR_1,
-	       &fsmc_regs_p->genmemctrl_pc);
-	writel(FSMC_THIZ_1 | FSMC_THOLD_4 | FSMC_TWAIT_6 | FSMC_TSET_0,
-	       &fsmc_regs_p->genmemctrl_comm);
-	writel(FSMC_THIZ_1 | FSMC_THOLD_4 | FSMC_TWAIT_6 | FSMC_TSET_0,
-	       &fsmc_regs_p->genmemctrl_attrib);
-
-	nand->options = 0;
-	nand->ecc.mode = NAND_ECC_HW;
-	nand->ecc.layout = &spear_nand_ecclayout;
-	nand->ecc.size = 512;
-	nand->ecc.bytes = 3;
-	nand->ecc.calculate = spear_read_hwecc;
-	nand->ecc.hwctl = spear_enable_hwecc;
-	nand->ecc.correct = nand_correct_data;
-	nand->cmd_ctrl = spear_nand_hwcontrol;
-	return 0;
-}