mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-17 09:43:59 +08:00
mtd: delete nomadik_nand driver
The nomadik_nand driver is really just a subset of the FSMC NAND driver, and there are no users anymore so let's delete it. Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
This commit is contained in:
Linus Walleij
Artem Bityutskiy
parent
41863f730f
commit
fc05d5a30d
@ -526,12 +526,6 @@ config MTD_NAND_MXC
|
||||
This enables the driver for the NAND flash controller on the
|
||||
MXC processors.
|
||||
|
||||
config MTD_NAND_NOMADIK
|
||||
tristate "ST Nomadik 8815 NAND support"
|
||||
depends on ARCH_NOMADIK
|
||||
help
|
||||
Driver for the NAND flash controller on the Nomadik, with ECC.
|
||||
|
||||
config MTD_NAND_SH_FLCTL
|
||||
tristate "Support for NAND on Renesas SuperH FLCTL"
|
||||
depends on SUPERH || ARCH_SHMOBILE
|
||||
|
||||
@ -49,7 +49,6 @@ obj-$(CONFIG_MTD_NAND_MXC) += mxc_nand.o
|
||||
obj-$(CONFIG_MTD_NAND_SOCRATES) += socrates_nand.o
|
||||
obj-$(CONFIG_MTD_NAND_TXX9NDFMC) += txx9ndfmc.o
|
||||
obj-$(CONFIG_MTD_NAND_NUC900) += nuc900_nand.o
|
||||
obj-$(CONFIG_MTD_NAND_NOMADIK) += nomadik_nand.o
|
||||
obj-$(CONFIG_MTD_NAND_MPC5121_NFC) += mpc5121_nfc.o
|
||||
obj-$(CONFIG_MTD_NAND_RICOH) += r852.o
|
||||
obj-$(CONFIG_MTD_NAND_JZ4740) += jz4740_nand.o
|
||||
|
||||
@ -1,235 +0,0 @@
|
||||
/*
|
||||
* drivers/mtd/nand/nomadik_nand.c
|
||||
*
|
||||
* Overview:
|
||||
* Driver for on-board NAND flash on Nomadik Platforms
|
||||
*
|
||||
* Copyright © 2007 STMicroelectronics Pvt. Ltd.
|
||||
* Author: Sachin Verma <sachin.verma@st.com>
|
||||
*
|
||||
* Copyright © 2009 Alessandro Rubini
|
||||
*
|
||||
* 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.
|
||||
*
|
||||
*/
|
||||
|
||||
#include <linux/init.h>
|
||||
#include <linux/module.h>
|
||||
#include <linux/types.h>
|
||||
#include <linux/mtd/mtd.h>
|
||||
#include <linux/mtd/nand.h>
|
||||
#include <linux/mtd/nand_ecc.h>
|
||||
#include <linux/platform_device.h>
|
||||
#include <linux/mtd/partitions.h>
|
||||
#include <linux/io.h>
|
||||
#include <linux/slab.h>
|
||||
#include <linux/platform_data/mtd-nomadik-nand.h>
|
||||
#include <mach/fsmc.h>
|
||||
|
||||
#include <mtd/mtd-abi.h>
|
||||
|
||||
struct nomadik_nand_host {
|
||||
struct mtd_info mtd;
|
||||
struct nand_chip nand;
|
||||
void __iomem *data_va;
|
||||
void __iomem *cmd_va;
|
||||
void __iomem *addr_va;
|
||||
struct nand_bbt_descr *bbt_desc;
|
||||
};
|
||||
|
||||
static struct nand_ecclayout nomadik_ecc_layout = {
|
||||
.eccbytes = 3 * 4,
|
||||
.eccpos = { /* each subpage has 16 bytes: pos 2,3,4 hosts ECC */
|
||||
0x02, 0x03, 0x04,
|
||||
0x12, 0x13, 0x14,
|
||||
0x22, 0x23, 0x24,
|
||||
0x32, 0x33, 0x34},
|
||||
/* let's keep bytes 5,6,7 for us, just in case we change ECC algo */
|
||||
.oobfree = { {0x08, 0x08}, {0x18, 0x08}, {0x28, 0x08}, {0x38, 0x08} },
|
||||
};
|
||||
|
||||
static void nomadik_ecc_control(struct mtd_info *mtd, int mode)
|
||||
{
|
||||
/* No need to enable hw ecc, it's on by default */
|
||||
}
|
||||
|
||||
static void nomadik_cmd_ctrl(struct mtd_info *mtd, int cmd, unsigned int ctrl)
|
||||
{
|
||||
struct nand_chip *nand = mtd->priv;
|
||||
struct nomadik_nand_host *host = nand->priv;
|
||||
|
||||
if (cmd == NAND_CMD_NONE)
|
||||
return;
|
||||
|
||||
if (ctrl & NAND_CLE)
|
||||
writeb(cmd, host->cmd_va);
|
||||
else
|
||||
writeb(cmd, host->addr_va);
|
||||
}
|
||||
|
||||
static int nomadik_nand_probe(struct platform_device *pdev)
|
||||
{
|
||||
struct nomadik_nand_platform_data *pdata = pdev->dev.platform_data;
|
||||
struct nomadik_nand_host *host;
|
||||
struct mtd_info *mtd;
|
||||
struct nand_chip *nand;
|
||||
struct resource *res;
|
||||
int ret = 0;
|
||||
|
||||
/* Allocate memory for the device structure (and zero it) */
|
||||
host = kzalloc(sizeof(struct nomadik_nand_host), GFP_KERNEL);
|
||||
if (!host) {
|
||||
dev_err(&pdev->dev, "Failed to allocate device structure.\n");
|
||||
return -ENOMEM;
|
||||
}
|
||||
|
||||
/* Call the client's init function, if any */
|
||||
if (pdata->init)
|
||||
ret = pdata->init();
|
||||
if (ret < 0) {
|
||||
dev_err(&pdev->dev, "Init function failed\n");
|
||||
goto err;
|
||||
}
|
||||
|
||||
/* ioremap three regions */
|
||||
res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "nand_addr");
|
||||
if (!res) {
|
||||
ret = -EIO;
|
||||
goto err_unmap;
|
||||
}
|
||||
host->addr_va = ioremap(res->start, resource_size(res));
|
||||
|
||||
res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "nand_data");
|
||||
if (!res) {
|
||||
ret = -EIO;
|
||||
goto err_unmap;
|
||||
}
|
||||
host->data_va = ioremap(res->start, resource_size(res));
|
||||
|
||||
res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "nand_cmd");
|
||||
if (!res) {
|
||||
ret = -EIO;
|
||||
goto err_unmap;
|
||||
}
|
||||
host->cmd_va = ioremap(res->start, resource_size(res));
|
||||
|
||||
if (!host->addr_va || !host->data_va || !host->cmd_va) {
|
||||
ret = -ENOMEM;
|
||||
goto err_unmap;
|
||||
}
|
||||
|
||||
/* Link all private pointers */
|
||||
mtd = &host->mtd;
|
||||
nand = &host->nand;
|
||||
mtd->priv = nand;
|
||||
nand->priv = host;
|
||||
|
||||
host->mtd.owner = THIS_MODULE;
|
||||
nand->IO_ADDR_R = host->data_va;
|
||||
nand->IO_ADDR_W = host->data_va;
|
||||
nand->cmd_ctrl = nomadik_cmd_ctrl;
|
||||
|
||||
/*
|
||||
* This stanza declares ECC_HW but uses soft routines. It's because
|
||||
* HW claims to make the calculation but not the correction. However,
|
||||
* I haven't managed to get the desired data out of it until now.
|
||||
*/
|
||||
nand->ecc.mode = NAND_ECC_SOFT;
|
||||
nand->ecc.layout = &nomadik_ecc_layout;
|
||||
nand->ecc.hwctl = nomadik_ecc_control;
|
||||
nand->ecc.size = 512;
|
||||
nand->ecc.bytes = 3;
|
||||
|
||||
nand->options = pdata->options;
|
||||
|
||||
/*
|
||||
* Scan to find existence of the device
|
||||
*/
|
||||
if (nand_scan(&host->mtd, 1)) {
|
||||
ret = -ENXIO;
|
||||
goto err_unmap;
|
||||
}
|
||||
|
||||
mtd_device_register(&host->mtd, pdata->parts, pdata->nparts);
|
||||
|
||||
platform_set_drvdata(pdev, host);
|
||||
return 0;
|
||||
|
||||
err_unmap:
|
||||
if (host->cmd_va)
|
||||
iounmap(host->cmd_va);
|
||||
if (host->data_va)
|
||||
iounmap(host->data_va);
|
||||
if (host->addr_va)
|
||||
iounmap(host->addr_va);
|
||||
err:
|
||||
kfree(host);
|
||||
return ret;
|
||||
}
|
||||
|
||||
/*
|
||||
* Clean up routine
|
||||
*/
|
||||
static int nomadik_nand_remove(struct platform_device *pdev)
|
||||
{
|
||||
struct nomadik_nand_host *host = platform_get_drvdata(pdev);
|
||||
struct nomadik_nand_platform_data *pdata = pdev->dev.platform_data;
|
||||
|
||||
if (pdata->exit)
|
||||
pdata->exit();
|
||||
|
||||
if (host) {
|
||||
nand_release(&host->mtd);
|
||||
iounmap(host->cmd_va);
|
||||
iounmap(host->data_va);
|
||||
iounmap(host->addr_va);
|
||||
kfree(host);
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int nomadik_nand_suspend(struct device *dev)
|
||||
{
|
||||
struct nomadik_nand_host *host = dev_get_drvdata(dev);
|
||||
int ret = 0;
|
||||
if (host)
|
||||
ret = mtd_suspend(&host->mtd);
|
||||
return ret;
|
||||
}
|
||||
|
||||
static int nomadik_nand_resume(struct device *dev)
|
||||
{
|
||||
struct nomadik_nand_host *host = dev_get_drvdata(dev);
|
||||
if (host)
|
||||
mtd_resume(&host->mtd);
|
||||
return 0;
|
||||
}
|
||||
|
||||
static const struct dev_pm_ops nomadik_nand_pm_ops = {
|
||||
.suspend = nomadik_nand_suspend,
|
||||
.resume = nomadik_nand_resume,
|
||||
};
|
||||
|
||||
static struct platform_driver nomadik_nand_driver = {
|
||||
.probe = nomadik_nand_probe,
|
||||
.remove = nomadik_nand_remove,
|
||||
.driver = {
|
||||
.owner = THIS_MODULE,
|
||||
.name = "nomadik_nand",
|
||||
.pm = &nomadik_nand_pm_ops,
|
||||
},
|
||||
};
|
||||
|
||||
module_platform_driver(nomadik_nand_driver);
|
||||
|
||||
MODULE_LICENSE("GPL");
|
||||
MODULE_AUTHOR("ST Microelectronics (sachin.verma@st.com)");
|
||||
MODULE_DESCRIPTION("NAND driver for Nomadik Platform");
|
||||
@ -1,16 +0,0 @@
|
||||
#ifndef __ASM_ARCH_NAND_H
|
||||
#define __ASM_ARCH_NAND_H
|
||||
|
||||
struct nomadik_nand_platform_data {
|
||||
struct mtd_partition *parts;
|
||||
int nparts;
|
||||
int options;
|
||||
int (*init) (void);
|
||||
int (*exit) (void);
|
||||
};
|
||||
|
||||
#define NAND_IO_DATA 0x40000000
|
||||
#define NAND_IO_CMD 0x40800000
|
||||
#define NAND_IO_ADDR 0x41000000
|
||||
|
||||
#endif /* __ASM_ARCH_NAND_H */
|
||||
Loading…
Reference in New Issue
Block a user