mtd: Remove now-defunct ts7250 nand driver (76037579) · Commits · e / devices / android_kernel_fairphone_FP4

arch/arm/mach-ep93xx/include/mach/ts72xx.h

+0 −19

Original line number	Diff line number	Diff line
		@@ -9,9 +9,6 @@
		* febff000 22000000 4K model number register
		* febfe000 22400000 4K options register
		* febfd000 22800000 4K options register #2
		* febfc000 [67]0000000 4K NAND data register
		* febfb000 [67]0400000 4K NAND control register
		* febfa000 [67]0800000 4K NAND busy register
		* febf9000 10800000 4K TS-5620 RTC index register
		* febf8000 11700000 4K TS-5620 RTC data register
		*/
		@@ -41,22 +38,6 @@
		#define TS72XX_OPTIONS2_TS9420_BOOT 0x02


		#define TS72XX_NAND1_DATA_PHYS_BASE 0x60000000
		#define TS72XX_NAND2_DATA_PHYS_BASE 0x70000000
		#define TS72XX_NAND_DATA_VIRT_BASE 0xfebfc000
		#define TS72XX_NAND_DATA_SIZE 0x00001000

		#define TS72XX_NAND1_CONTROL_PHYS_BASE 0x60400000
		#define TS72XX_NAND2_CONTROL_PHYS_BASE 0x70400000
		#define TS72XX_NAND_CONTROL_VIRT_BASE 0xfebfb000
		#define TS72XX_NAND_CONTROL_SIZE 0x00001000

		#define TS72XX_NAND1_BUSY_PHYS_BASE 0x60800000
		#define TS72XX_NAND2_BUSY_PHYS_BASE 0x70800000
		#define TS72XX_NAND_BUSY_VIRT_BASE 0xfebfa000
		#define TS72XX_NAND_BUSY_SIZE 0x00001000


		#define TS72XX_RTC_INDEX_VIRT_BASE 0xfebf9000
		#define TS72XX_RTC_INDEX_PHYS_BASE 0x10800000
		#define TS72XX_RTC_INDEX_SIZE 0x00001000

drivers/mtd/nand/Kconfig

+0 −6

Original line number	Diff line number	Diff line
		@@ -95,12 +95,6 @@ config MTD_NAND_OMAP_PREFETCH_DMA
		or in DMA interrupt mode.
		Say y for DMA mode or MPU mode will be used

		config MTD_NAND_TS7250
		tristate "NAND Flash device on TS-7250 board"
		depends on MACH_TS72XX
		help
		Support for NAND flash on Technologic Systems TS-7250 platform.

		config MTD_NAND_IDS
		tristate

drivers/mtd/nand/Makefile

+0 −1

Original line number	Diff line number	Diff line
		@@ -19,7 +19,6 @@ obj-$(CONFIG_MTD_NAND_DISKONCHIP) += diskonchip.o
		obj-$(CONFIG_MTD_NAND_H1900) += h1910.o
		obj-$(CONFIG_MTD_NAND_RTC_FROM4) += rtc_from4.o
		obj-$(CONFIG_MTD_NAND_SHARPSL) += sharpsl.o
		obj-$(CONFIG_MTD_NAND_TS7250) += ts7250.o
		obj-$(CONFIG_MTD_NAND_NANDSIM) += nandsim.o
		obj-$(CONFIG_MTD_NAND_CS553X) += cs553x_nand.o
		obj-$(CONFIG_MTD_NAND_NDFC) += ndfc.o

drivers/mtd/nand/ts7250.c

deleted100644 → 0

+0 −207

Original line number	Diff line number	Diff line
		/*
		* drivers/mtd/nand/ts7250.c
		*
		* Copyright (C) 2004 Technologic Systems (support@embeddedARM.com)
		*
		* Derived from drivers/mtd/nand/edb7312.c
		* Copyright (C) 2004 Marius Gröger (mag@sysgo.de)
		*
		* Derived from drivers/mtd/nand/autcpu12.c
		* Copyright (c) 2001 Thomas Gleixner (gleixner@autronix.de)
		*
		* 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
		* TS-7250 board which utilizes a Samsung 32 Mbyte part.
		*/

		#include <linux/slab.h>
		#include <linux/module.h>
		#include <linux/init.h>
		#include <linux/mtd/mtd.h>
		#include <linux/mtd/nand.h>
		#include <linux/mtd/partitions.h>
		#include <linux/io.h>

		#include <mach/hardware.h>
		#include <mach/ts72xx.h>

		#include <asm/sizes.h>
		#include <asm/mach-types.h>

		/*
		* MTD structure for TS7250 board
		*/
		static struct mtd_info *ts7250_mtd = NULL;

		#ifdef CONFIG_MTD_PARTITIONS
		static const char *part_probes[] = { "cmdlinepart", NULL };

		#define NUM_PARTITIONS 3

		/*
		* Define static partitions for flash device
		*/
		static struct mtd_partition partition_info32[] = {
		{
		.name = "TS-BOOTROM",
		.offset = 0x00000000,
		.size = 0x00004000,
		}, {
		.name = "Linux",
		.offset = 0x00004000,
		.size = 0x01d00000,
		}, {
		.name = "RedBoot",
		.offset = 0x01d04000,
		.size = 0x002fc000,
		},
		};

		/*
		* Define static partitions for flash device
		*/
		static struct mtd_partition partition_info128[] = {
		{
		.name = "TS-BOOTROM",
		.offset = 0x00000000,
		.size = 0x00004000,
		}, {
		.name = "Linux",
		.offset = 0x00004000,
		.size = 0x07d00000,
		}, {
		.name = "RedBoot",
		.offset = 0x07d04000,
		.size = 0x002fc000,
		},
		};
		#endif


		/*
		* hardware specific access to control-lines
		*
		* ctrl:
		* NAND_NCE: bit 0 -> bit 2
		* NAND_CLE: bit 1 -> bit 1
		* NAND_ALE: bit 2 -> bit 0
		*/
		static void ts7250_hwcontrol(struct mtd_info *mtd, int cmd, unsigned int ctrl)
		{
		struct nand_chip *chip = mtd->priv;

		if (ctrl & NAND_CTRL_CHANGE) {
		unsigned long addr = TS72XX_NAND_CONTROL_VIRT_BASE;
		unsigned char bits;

		bits = (ctrl & NAND_NCE) << 2;
		bits \|= ctrl & NAND_CLE;
		bits \|= (ctrl & NAND_ALE) >> 2;

		__raw_writeb((__raw_readb(addr) & ~0x7) \| bits, addr);
		}

		if (cmd != NAND_CMD_NONE)
		writeb(cmd, chip->IO_ADDR_W);
		}

		/*
		* read device ready pin
		*/
		static int ts7250_device_ready(struct mtd_info *mtd)
		{
		return __raw_readb(TS72XX_NAND_BUSY_VIRT_BASE) & 0x20;
		}

		/*
		* Main initialization routine
		*/
		static int __init ts7250_init(void)
		{
		struct nand_chip *this;
		const char *part_type = 0;
		int mtd_parts_nb = 0;
		struct mtd_partition *mtd_parts = 0;

		if (!machine_is_ts72xx() \|\| board_is_ts7200())
		return -ENXIO;

		/* Allocate memory for MTD device structure and private data */
		ts7250_mtd = kmalloc(sizeof(struct mtd_info) + sizeof(struct nand_chip), GFP_KERNEL);
		if (!ts7250_mtd) {
		printk("Unable to allocate TS7250 NAND MTD device structure.\n");
		return -ENOMEM;
		}

		/* Get pointer to private data */
		this = (struct nand_chip *)(&ts7250_mtd[1]);

		/* Initialize structures */
		memset(ts7250_mtd, 0, sizeof(struct mtd_info));
		memset(this, 0, sizeof(struct nand_chip));

		/* Link the private data with the MTD structure */
		ts7250_mtd->priv = this;
		ts7250_mtd->owner = THIS_MODULE;

		/* insert callbacks */
		this->IO_ADDR_R = (void *)TS72XX_NAND_DATA_VIRT_BASE;
		this->IO_ADDR_W = (void *)TS72XX_NAND_DATA_VIRT_BASE;
		this->cmd_ctrl = ts7250_hwcontrol;
		this->dev_ready = ts7250_device_ready;
		this->chip_delay = 15;
		this->ecc.mode = NAND_ECC_SOFT;

		printk("Searching for NAND flash...\n");
		/* Scan to find existence of the device */
		if (nand_scan(ts7250_mtd, 1)) {
		kfree(ts7250_mtd);
		return -ENXIO;
		}
		#ifdef CONFIG_MTD_PARTITIONS
		ts7250_mtd->name = "ts7250-nand";
		mtd_parts_nb = parse_mtd_partitions(ts7250_mtd, part_probes, &mtd_parts, 0);
		if (mtd_parts_nb > 0)
		part_type = "command line";
		else
		mtd_parts_nb = 0;
		#endif
		if (mtd_parts_nb == 0) {
		mtd_parts = partition_info32;
		if (ts7250_mtd->size >= (128 * 0x100000))
		mtd_parts = partition_info128;
		mtd_parts_nb = NUM_PARTITIONS;
		part_type = "static";
		}

		/* Register the partitions */
		printk(KERN_NOTICE "Using %s partition definition\n", part_type);
		add_mtd_partitions(ts7250_mtd, mtd_parts, mtd_parts_nb);

		/* Return happy */
		return 0;
		}

		module_init(ts7250_init);

		/*
		* Clean up routine
		*/
		static void __exit ts7250_cleanup(void)
		{
		/* Unregister the device */
		del_mtd_device(ts7250_mtd);

		/* Free the MTD device structure */
		kfree(ts7250_mtd);
		}

		module_exit(ts7250_cleanup);

		MODULE_LICENSE("GPL");
		MODULE_AUTHOR("Jesse Off <joff@embeddedARM.com>");
		MODULE_DESCRIPTION("MTD map driver for Technologic Systems TS-7250 board");