[U-Boot] [PATCH 09/28] SPEAr : Configuring FSMC driver for NAND interface
Vipin KUMAR
vipin.kumar at st.com
Wed Jul 14 07:09:45 CEST 2010
From: Vipin KUMAR <vipin.kumar at st.com>
Since FSMC is a standard IP and it supports different memory interfaces, it
is supported independent of spear platform and spear is configured to use that
driver for interfacing with the NAND device
Spear platform uses generic FSMC driver and spear specific files i.e
drivers/mtd/nand/spr_nand.c, arch/arm/include/asm/arch-spear/spr_nand.h are
removed
Signed-off-by: Vipin Kumar <vipin.kumar at st.com>
---
arch/arm/include/asm/arch-spear/hardware.h | 8 +-
arch/arm/include/asm/arch-spear/spr_nand.h | 57 -------------
board/spear/spear300/spear300.c | 7 +-
board/spear/spear310/spear310.c | 7 +-
board/spear/spear320/spear320.c | 7 +-
board/spear/spear600/spear600.c | 7 +-
drivers/mtd/nand/Makefile | 1 -
drivers/mtd/nand/spr_nand.c | 124 ----------------------------
include/configs/spear-common.h | 2 +-
include/configs/spear3xx.h | 4 +
include/configs/spear6xx.h | 3 +
11 files changed, 28 insertions(+), 199 deletions(-)
delete mode 100644 arch/arm/include/asm/arch-spear/spr_nand.h
delete mode 100644 drivers/mtd/nand/spr_nand.c
diff --git a/arch/arm/include/asm/arch-spear/hardware.h b/arch/arm/include/asm/arch-spear/hardware.h
index 9f1e154..52037b6 100644
--- a/arch/arm/include/asm/arch-spear/hardware.h
+++ b/arch/arm/include/asm/arch-spear/hardware.h
@@ -38,15 +38,15 @@
#if defined(CONFIG_SPEAR600)
#define CONFIG_SYS_I2C_BASE (0xD0200000)
-#define CONFIG_SPEAR_FSMCBASE (0xD1800000)
+#define CONFIG_SYS_FSMC_BASE (0xD1800000)
#elif defined(CONFIG_SPEAR300)
#define CONFIG_SYS_I2C_BASE (0xD0180000)
-#define CONFIG_SPEAR_FSMCBASE (0x94000000)
+#define CONFIG_SYS_FSMC_BASE (0x94000000)
#elif defined(CONFIG_SPEAR310)
#define CONFIG_SYS_I2C_BASE (0xD0180000)
-#define CONFIG_SPEAR_FSMCBASE (0x44000000)
+#define CONFIG_SYS_FSMC_BASE (0x44000000)
#undef CONFIG_SYS_NAND_CLE
#undef CONFIG_SYS_NAND_ALE
@@ -63,7 +63,7 @@
#elif defined(CONFIG_SPEAR320)
#define CONFIG_SYS_I2C_BASE (0xD0180000)
-#define CONFIG_SPEAR_FSMCBASE (0x4C000000)
+#define CONFIG_SYS_FSMC_BASE (0x4C000000)
#define CONFIG_SPEAR_EMIBASE (0x40000000)
#define CONFIG_SPEAR_RASBASE (0xB3000000)
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 at 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/board/spear/spear300/spear300.c b/board/spear/spear300/spear300.c
index 774f466..3f7ccb8 100644
--- a/board/spear/spear300/spear300.c
+++ b/board/spear/spear300/spear300.c
@@ -25,10 +25,10 @@
#include <netdev.h>
#include <nand.h>
#include <asm/io.h>
+#include <linux/mtd/fsmc_nand.h>
#include <asm/arch/hardware.h>
#include <asm/arch/spr_defs.h>
#include <asm/arch/spr_misc.h>
-#include <asm/arch/spr_nand.h>
int board_init(void)
{
@@ -47,14 +47,15 @@ int board_nand_init(struct nand_chip *nand)
struct misc_regs *const misc_regs_p =
(struct misc_regs *)CONFIG_SPEAR_MISCBASE;
+#if defined(CONFIG_NAND_FSMC)
if (((readl(&misc_regs_p->auto_cfg_reg) & MISC_SOCCFGMSK) ==
MISC_SOCCFG30) ||
((readl(&misc_regs_p->auto_cfg_reg) & MISC_SOCCFGMSK) ==
MISC_SOCCFG31)) {
- return spear_nand_init(nand);
+ return fsmc_nand_init(nand);
}
-
+#endif
return -1;
}
diff --git a/board/spear/spear310/spear310.c b/board/spear/spear310/spear310.c
index 96f1e00..f74bbac 100644
--- a/board/spear/spear310/spear310.c
+++ b/board/spear/spear310/spear310.c
@@ -26,10 +26,10 @@
#include <netdev.h>
#include <nand.h>
#include <asm/io.h>
+#include <linux/mtd/fsmc_nand.h>
#include <asm/arch/hardware.h>
#include <asm/arch/spr_defs.h>
#include <asm/arch/spr_misc.h>
-#include <asm/arch/spr_nand.h>
int board_init(void)
{
@@ -48,14 +48,15 @@ int board_nand_init(struct nand_chip *nand)
struct misc_regs *const misc_regs_p =
(struct misc_regs *)CONFIG_SPEAR_MISCBASE;
+#if defined(CONFIG_NAND_FSMC)
if (((readl(&misc_regs_p->auto_cfg_reg) & MISC_SOCCFGMSK) ==
MISC_SOCCFG30) ||
((readl(&misc_regs_p->auto_cfg_reg) & MISC_SOCCFGMSK) ==
MISC_SOCCFG31)) {
- return spear_nand_init(nand);
+ return fsmc_nand_init(nand);
}
-
+#endif
return -1;
}
diff --git a/board/spear/spear320/spear320.c b/board/spear/spear320/spear320.c
index c3208e2..adddfd1 100644
--- a/board/spear/spear320/spear320.c
+++ b/board/spear/spear320/spear320.c
@@ -26,10 +26,10 @@
#include <netdev.h>
#include <nand.h>
#include <asm/io.h>
+#include <linux/mtd/fsmc_nand.h>
#include <asm/arch/hardware.h>
#include <asm/arch/spr_defs.h>
#include <asm/arch/spr_misc.h>
-#include <asm/arch/spr_nand.h>
int board_init(void)
{
@@ -48,14 +48,15 @@ int board_nand_init(struct nand_chip *nand)
struct misc_regs *const misc_regs_p =
(struct misc_regs *)CONFIG_SPEAR_MISCBASE;
+#if defined(CONFIG_NAND_FSMC)
if (((readl(&misc_regs_p->auto_cfg_reg) & MISC_SOCCFGMSK) ==
MISC_SOCCFG30) ||
((readl(&misc_regs_p->auto_cfg_reg) & MISC_SOCCFGMSK) ==
MISC_SOCCFG31)) {
- return spear_nand_init(nand);
+ return fsmc_nand_init(nand);
}
-
+#endif
return -1;
}
diff --git a/board/spear/spear600/spear600.c b/board/spear/spear600/spear600.c
index cd7ff2c..5a32b7f 100644
--- a/board/spear/spear600/spear600.c
+++ b/board/spear/spear600/spear600.c
@@ -25,10 +25,10 @@
#include <netdev.h>
#include <nand.h>
#include <asm/io.h>
+#include <linux/mtd/fsmc_nand.h>
#include <asm/arch/hardware.h>
#include <asm/arch/spr_defs.h>
#include <asm/arch/spr_misc.h>
-#include <asm/arch/spr_nand.h>
int board_init(void)
{
@@ -47,9 +47,10 @@ int board_nand_init(struct nand_chip *nand)
struct misc_regs *const misc_regs_p =
(struct misc_regs *)CONFIG_SPEAR_MISCBASE;
+#if defined(CONFIG_NAND_FSMC)
if (!(readl(&misc_regs_p->auto_cfg_reg) & MISC_NANDDIS))
- return spear_nand_init(nand);
-
+ return fsmc_nand_init(nand);
+#endif
return -1;
}
diff --git a/drivers/mtd/nand/Makefile b/drivers/mtd/nand/Makefile
index 4c6b54f..36fc8b3 100644
--- a/drivers/mtd/nand/Makefile
+++ b/drivers/mtd/nand/Makefile
@@ -48,7 +48,6 @@ 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
-COBJS-$(CONFIG_NAND_SPEAR) += spr_nand.o
COBJS-$(CONFIG_NAND_OMAP_GPMC) += omap_gpmc.o
COBJS-$(CONFIG_NAND_PLAT) += nand_plat.o
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 at 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;
-}
diff --git a/include/configs/spear-common.h b/include/configs/spear-common.h
index 1398837..a54d534 100644
--- a/include/configs/spear-common.h
+++ b/include/configs/spear-common.h
@@ -94,7 +94,7 @@
#define CONFIG_SYS_LOADS_BAUD_CHANGE
/* NAND FLASH Configuration */
-#define CONFIG_NAND_SPEAR 1
+#define CONFIG_NAND_FSMC 1
#define CONFIG_SYS_MAX_NAND_DEVICE 1
#define CONFIG_MTD_NAND_VERIFY_WRITE 1
diff --git a/include/configs/spear3xx.h b/include/configs/spear3xx.h
index 689d914..fde505c 100644
--- a/include/configs/spear3xx.h
+++ b/include/configs/spear3xx.h
@@ -133,6 +133,10 @@
#endif
+/* NAND flash configuration */
+#define CONFIG_SYS_FSMC_NAND_SP 1
+#define CONFIG_SYS_FSMC_NAND_8BIT 1
+
#if defined(CONFIG_SPEAR300)
#define CONFIG_SYS_NAND_BASE (0x80000000)
diff --git a/include/configs/spear6xx.h b/include/configs/spear6xx.h
index 2ad5beb..2532344 100644
--- a/include/configs/spear6xx.h
+++ b/include/configs/spear6xx.h
@@ -38,6 +38,9 @@
#define CONFIG_PL01x_PORTS { (void *)CONFIG_SYS_SERIAL0, \
(void *)CONFIG_SYS_SERIAL1 }
+/* NAND flash configuration */
+#define CONFIG_SYS_FSMC_NAND_SP 1
+#define CONFIG_SYS_FSMC_NAND_8BIT 1
#define CONFIG_SYS_NAND_BASE (0xD2000000)
#endif /* __CONFIG_H */
--
1.6.0.2
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