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authorAlexander Shiyan <shc_work@mail.ru>2012-11-17 17:57:19 +0400
committerOlof Johansson <olof@lixom.net>2012-11-21 09:57:44 -0800
commite377ca1e32f66378cc6d0562851bfc51126865ea (patch)
tree132588c9d007c6fbc47ca52e0c2b05f77181f5d0 /drivers/mtd
parent87c37b51ade7d1296ab99ed8f237637bed7779c7 (diff)
downloadop-kernel-dev-e377ca1e32f66378cc6d0562851bfc51126865ea.zip
op-kernel-dev-e377ca1e32f66378cc6d0562851bfc51126865ea.tar.gz
ARM: clps711x: p720t: Special driver for handling NAND memory is removed
This patch provide migration to using "gpio-nand" driver instead of using special driver for handling NAND memory. Signed-off-by: Alexander Shiyan <shc_work@mail.ru> Signed-off-by: Olof Johansson <olof@lixom.net>
Diffstat (limited to 'drivers/mtd')
-rw-r--r--drivers/mtd/nand/Kconfig6
-rw-r--r--drivers/mtd/nand/Makefile1
-rw-r--r--drivers/mtd/nand/spia.c176
3 files changed, 0 insertions, 183 deletions
diff --git a/drivers/mtd/nand/Kconfig b/drivers/mtd/nand/Kconfig
index e6e0a82..531807d 100644
--- a/drivers/mtd/nand/Kconfig
+++ b/drivers/mtd/nand/Kconfig
@@ -79,12 +79,6 @@ config MTD_NAND_GPIO
help
This enables a GPIO based NAND flash driver.
-config MTD_NAND_SPIA
- tristate "NAND Flash device on SPIA board"
- depends on ARCH_P720T
- help
- If you had to ask, you don't have one. Say 'N'.
-
config MTD_NAND_AMS_DELTA
tristate "NAND Flash device on Amstrad E3"
depends on MACH_AMS_DELTA
diff --git a/drivers/mtd/nand/Makefile b/drivers/mtd/nand/Makefile
index 0b1fca2..6c7f2b3 100644
--- a/drivers/mtd/nand/Makefile
+++ b/drivers/mtd/nand/Makefile
@@ -9,7 +9,6 @@ obj-$(CONFIG_MTD_NAND_IDS) += nand_ids.o
obj-$(CONFIG_MTD_SM_COMMON) += sm_common.o
obj-$(CONFIG_MTD_NAND_CAFE) += cafe_nand.o
-obj-$(CONFIG_MTD_NAND_SPIA) += spia.o
obj-$(CONFIG_MTD_NAND_AMS_DELTA) += ams-delta.o
obj-$(CONFIG_MTD_NAND_DENALI) += denali.o
obj-$(CONFIG_MTD_NAND_AU1550) += au1550nd.o
diff --git a/drivers/mtd/nand/spia.c b/drivers/mtd/nand/spia.c
deleted file mode 100644
index bef76cd..0000000
--- a/drivers/mtd/nand/spia.c
+++ /dev/null
@@ -1,176 +0,0 @@
-/*
- * drivers/mtd/nand/spia.c
- *
- * Copyright (C) 2000 Steven J. Hill (sjhill@realitydiluted.com)
- *
- *
- * 10-29-2001 TG change to support hardwarespecific access
- * to controllines (due to change in nand.c)
- * page_cache added
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * Overview:
- * This is a device driver for the NAND flash device found on the
- * SPIA board which utilizes the Toshiba TC58V64AFT part. This is
- * a 64Mibit (8MiB x 8 bits) NAND flash device.
- */
-
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/slab.h>
-#include <linux/module.h>
-#include <linux/mtd/mtd.h>
-#include <linux/mtd/nand.h>
-#include <linux/mtd/partitions.h>
-#include <asm/io.h>
-
-/*
- * MTD structure for SPIA board
- */
-static struct mtd_info *spia_mtd = NULL;
-
-/*
- * Values specific to the SPIA board (used with EP7212 processor)
- */
-#define SPIA_IO_BASE 0xd0000000 /* Start of EP7212 IO address space */
-#define SPIA_FIO_BASE 0xf0000000 /* Address where flash is mapped */
-#define SPIA_PEDR 0x0080 /*
- * IO offset to Port E data register
- * where the CLE, ALE and NCE pins
- * are wired to.
- */
-#define SPIA_PEDDR 0x00c0 /*
- * IO offset to Port E data direction
- * register so we can control the IO
- * lines.
- */
-
-/*
- * Module stuff
- */
-
-static int spia_io_base = SPIA_IO_BASE;
-static int spia_fio_base = SPIA_FIO_BASE;
-static int spia_pedr = SPIA_PEDR;
-static int spia_peddr = SPIA_PEDDR;
-
-module_param(spia_io_base, int, 0);
-module_param(spia_fio_base, int, 0);
-module_param(spia_pedr, int, 0);
-module_param(spia_peddr, int, 0);
-
-/*
- * Define partitions for flash device
- */
-static const struct mtd_partition partition_info[] = {
- {
- .name = "SPIA flash partition 1",
- .offset = 0,
- .size = 2 * 1024 * 1024},
- {
- .name = "SPIA flash partition 2",
- .offset = 2 * 1024 * 1024,
- .size = 6 * 1024 * 1024}
-};
-
-#define NUM_PARTITIONS 2
-
-/*
- * hardware specific access to control-lines
- *
- * ctrl:
- * NAND_CNE: bit 0 -> bit 2
- * NAND_CLE: bit 1 -> bit 0
- * NAND_ALE: bit 2 -> bit 1
- */
-static void spia_hwcontrol(struct mtd_info *mtd, int cmd)
-{
- struct nand_chip *chip = mtd->priv;
-
- if (ctrl & NAND_CTRL_CHANGE) {
- void __iomem *addr = spia_io_base + spia_pedr;
- unsigned char bits;
-
- bits = (ctrl & NAND_CNE) << 2;
- bits |= (ctrl & NAND_CLE | NAND_ALE) >> 1;
- writeb((readb(addr) & ~0x7) | bits, addr);
- }
-
- if (cmd != NAND_CMD_NONE)
- writeb(cmd, chip->IO_ADDR_W);
-}
-
-/*
- * Main initialization routine
- */
-static int __init spia_init(void)
-{
- struct nand_chip *this;
-
- /* Allocate memory for MTD device structure and private data */
- spia_mtd = kmalloc(sizeof(struct mtd_info) + sizeof(struct nand_chip), GFP_KERNEL);
- if (!spia_mtd) {
- printk("Unable to allocate SPIA NAND MTD device structure.\n");
- return -ENOMEM;
- }
-
- /* Get pointer to private data */
- this = (struct nand_chip *)(&spia_mtd[1]);
-
- /* Initialize structures */
- memset(spia_mtd, 0, sizeof(struct mtd_info));
- memset(this, 0, sizeof(struct nand_chip));
-
- /* Link the private data with the MTD structure */
- spia_mtd->priv = this;
- spia_mtd->owner = THIS_MODULE;
-
- /*
- * Set GPIO Port E control register so that the pins are configured
- * to be outputs for controlling the NAND flash.
- */
- (*(volatile unsigned char *)(spia_io_base + spia_peddr)) = 0x07;
-
- /* Set address of NAND IO lines */
- this->IO_ADDR_R = (void __iomem *)spia_fio_base;
- this->IO_ADDR_W = (void __iomem *)spia_fio_base;
- /* Set address of hardware control function */
- this->cmd_ctrl = spia_hwcontrol;
- /* 15 us command delay time */
- this->chip_delay = 15;
-
- /* Scan to find existence of the device */
- if (nand_scan(spia_mtd, 1)) {
- kfree(spia_mtd);
- return -ENXIO;
- }
-
- /* Register the partitions */
- mtd_device_register(spia_mtd, partition_info, NUM_PARTITIONS);
-
- /* Return happy */
- return 0;
-}
-
-module_init(spia_init);
-
-/*
- * Clean up routine
- */
-static void __exit spia_cleanup(void)
-{
- /* Release resources, unregister device */
- nand_release(spia_mtd);
-
- /* Free the MTD device structure */
- kfree(spia_mtd);
-}
-
-module_exit(spia_cleanup);
-
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Steven J. Hill <sjhill@realitydiluted.com");
-MODULE_DESCRIPTION("Board-specific glue layer for NAND flash on SPIA board");
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