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UIO: Remove SMX Cryptengine driver

Browse Source 
Ben Nizette, the author of this driver, told me in a private mail that this
project has been cancelled. He suggested to remove the driver for now, and
will come back with a new version should the hardware really exist.
This patch completely removes the driver.

Signed-off-by: Hans J. Koch <hjk@linutronix.de>
Acked-by: Ben Nizette <bn@niasdigital.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Hans J. Koch 2010-02-10 20:12:42 +01:00 committed by Greg Kroah-Hartman
parent 0a965eb9f6
commit d6e976c0d2
3 changed files with 0 additions and 152 deletions
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11
drivers/uio/Kconfig
View File

@ -44,17 +44,6 @@ config UIO_PDRV_GENIRQ
If you don't know what to do here, say N.
config UIO_SMX
tristate "SMX cryptengine UIO interface"
help
Userspace IO interface to the Cryptography engine found on the
Nias Digital SMX boards. These will be available from Q4 2008
from http://www.niasdigital.com. The userspace part of this
driver will be released under the GPL at the same time as the
hardware and will be able to be downloaded from the same site.
If you compile this as a module, it will be called uio_smx.
config UIO_AEC
tristate "AEC video timestamp device"
depends on PCI

1
drivers/uio/Makefile
View File

@ -2,7 +2,6 @@ obj-$(CONFIG_UIO) += uio.o
obj-$(CONFIG_UIO_CIF) += uio_cif.o
obj-$(CONFIG_UIO_PDRV) += uio_pdrv.o
obj-$(CONFIG_UIO_PDRV_GENIRQ) += uio_pdrv_genirq.o
obj-$(CONFIG_UIO_SMX) += uio_smx.o
obj-$(CONFIG_UIO_AEC) += uio_aec.o
obj-$(CONFIG_UIO_SERCOS3) += uio_sercos3.o
obj-$(CONFIG_UIO_PCI_GENERIC) += uio_pci_generic.o

140
drivers/uio/uio_smx.c
View File

@ -1,140 +0,0 @@
/*
* UIO SMX Cryptengine driver.
*
* (C) 2008 Nias Digital P/L <bn@niasdigital.com>
*
* 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.
*
*/
#include <linux/device.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/uio_driver.h>
#include <linux/io.h>
#define DRV_NAME "smx-ce"
#define DRV_VERSION "0.03"
#define SMX_CSR 0x00000000
#define SMX_EnD 0x00000001
#define SMX_RUN 0x00000002
#define SMX_DRDY 0x00000004
#define SMX_ERR 0x00000008
static irqreturn_t smx_handler(int irq, struct uio_info *dev_info)
{
void __iomem *csr = dev_info->mem[0].internal_addr + SMX_CSR;
u32 status = ioread32(csr);
if (!(status & SMX_DRDY))
return IRQ_NONE;
/* Disable interrupt */
iowrite32(status & ~SMX_DRDY, csr);
return IRQ_HANDLED;
}
static int __devinit smx_ce_probe(struct platform_device *dev)
{
int ret = -ENODEV;
struct uio_info *info;
struct resource *regs;
info = kzalloc(sizeof(struct uio_info), GFP_KERNEL);
if (!info)
return -ENOMEM;
regs = platform_get_resource(dev, IORESOURCE_MEM, 0);
if (!regs) {
dev_err(&dev->dev, "No memory resource specified\n");
goto out_free;
}
info->mem[0].addr = regs->start;
if (!info->mem[0].addr) {
dev_err(&dev->dev, "Invalid memory resource\n");
goto out_free;
}
info->mem[0].size = regs->end - regs->start + 1;
info->mem[0].internal_addr = ioremap(regs->start, info->mem[0].size);
if (!info->mem[0].internal_addr) {
dev_err(&dev->dev, "Can't remap memory address range\n");
goto out_free;
}
info->mem[0].memtype = UIO_MEM_PHYS;
info->name = "smx-ce";
info->version = "0.03";
info->irq = platform_get_irq(dev, 0);
if (info->irq < 0) {
ret = info->irq;
dev_err(&dev->dev, "No (or invalid) IRQ resource specified\n");
goto out_unmap;
}
info->irq_flags = IRQF_SHARED;
info->handler = smx_handler;
platform_set_drvdata(dev, info);
ret = uio_register_device(&dev->dev, info);
if (ret)
goto out_unmap;
return 0;
out_unmap:
iounmap(info->mem[0].internal_addr);
out_free:
kfree(info);
return ret;
}
static int __devexit smx_ce_remove(struct platform_device *dev)
{
struct uio_info *info = platform_get_drvdata(dev);
uio_unregister_device(info);
platform_set_drvdata(dev, NULL);
iounmap(info->mem[0].internal_addr);
kfree(info);
return 0;
}
static struct platform_driver smx_ce_driver = {
.probe = smx_ce_probe,
.remove = __devexit_p(smx_ce_remove),
.driver = {
.name = DRV_NAME,
.owner = THIS_MODULE,
},
};
static int __init smx_ce_init_module(void)
{
return platform_driver_register(&smx_ce_driver);
}
module_init(smx_ce_init_module);
static void __exit smx_ce_exit_module(void)
{
platform_driver_unregister(&smx_ce_driver);
}
module_exit(smx_ce_exit_module);
MODULE_LICENSE("GPL v2");
MODULE_VERSION(DRV_VERSION);
MODULE_AUTHOR("Ben Nizette <bn@niasdigital.com>");