124 lines
2.8 KiB
C
124 lines
2.8 KiB
C
/*
|
|
* NEC VR4100 series GIU platform device.
|
|
*
|
|
* Copyright (C) 2007 Yoichi Yuasa <yuasa@linux-mips.org>
|
|
*
|
|
* 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
|
*/
|
|
#include <linux/errno.h>
|
|
#include <linux/init.h>
|
|
#include <linux/smp.h>
|
|
#include <linux/ioport.h>
|
|
#include <linux/platform_device.h>
|
|
|
|
#include <asm/cpu.h>
|
|
#include <asm/vr41xx/giu.h>
|
|
#include <asm/vr41xx/irq.h>
|
|
|
|
static struct resource giu_50pins_pullupdown_resource[] __initdata = {
|
|
{
|
|
.start = 0x0b000100,
|
|
.end = 0x0b00011f,
|
|
.flags = IORESOURCE_MEM,
|
|
},
|
|
{
|
|
.start = 0x0b0002e0,
|
|
.end = 0x0b0002e3,
|
|
.flags = IORESOURCE_MEM,
|
|
},
|
|
{
|
|
.start = GIUINT_IRQ,
|
|
.end = GIUINT_IRQ,
|
|
.flags = IORESOURCE_IRQ,
|
|
},
|
|
};
|
|
|
|
static struct resource giu_36pins_resource[] __initdata = {
|
|
{
|
|
.start = 0x0f000140,
|
|
.end = 0x0f00015f,
|
|
.flags = IORESOURCE_MEM,
|
|
},
|
|
{
|
|
.start = GIUINT_IRQ,
|
|
.end = GIUINT_IRQ,
|
|
.flags = IORESOURCE_IRQ,
|
|
},
|
|
};
|
|
|
|
static struct resource giu_48pins_resource[] __initdata = {
|
|
{
|
|
.start = 0x0f000140,
|
|
.end = 0x0f000167,
|
|
.flags = IORESOURCE_MEM,
|
|
},
|
|
{
|
|
.start = GIUINT_IRQ,
|
|
.end = GIUINT_IRQ,
|
|
.flags = IORESOURCE_IRQ,
|
|
},
|
|
};
|
|
|
|
static int __init vr41xx_giu_add(void)
|
|
{
|
|
struct platform_device *pdev;
|
|
struct resource *res;
|
|
unsigned int num;
|
|
int retval;
|
|
|
|
pdev = platform_device_alloc("GIU", -1);
|
|
if (!pdev)
|
|
return -ENOMEM;
|
|
|
|
switch (current_cpu_type()) {
|
|
case CPU_VR4111:
|
|
case CPU_VR4121:
|
|
pdev->id = GPIO_50PINS_PULLUPDOWN;
|
|
res = giu_50pins_pullupdown_resource;
|
|
num = ARRAY_SIZE(giu_50pins_pullupdown_resource);
|
|
break;
|
|
case CPU_VR4122:
|
|
case CPU_VR4131:
|
|
pdev->id = GPIO_36PINS;
|
|
res = giu_36pins_resource;
|
|
num = ARRAY_SIZE(giu_36pins_resource);
|
|
break;
|
|
case CPU_VR4133:
|
|
pdev->id = GPIO_48PINS_EDGE_SELECT;
|
|
res = giu_48pins_resource;
|
|
num = ARRAY_SIZE(giu_48pins_resource);
|
|
break;
|
|
default:
|
|
retval = -ENODEV;
|
|
goto err_free_device;
|
|
}
|
|
|
|
retval = platform_device_add_resources(pdev, res, num);
|
|
if (retval)
|
|
goto err_free_device;
|
|
|
|
retval = platform_device_add(pdev);
|
|
if (retval)
|
|
goto err_free_device;
|
|
|
|
return 0;
|
|
|
|
err_free_device:
|
|
platform_device_put(pdev);
|
|
|
|
return retval;
|
|
}
|
|
device_initcall(vr41xx_giu_add);
|