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/*
* arch/ubicom32/mach-common/vdc_tio.c
* Generic initialization for VDC
*
* (C) Copyright 2009, Ubicom, Inc.
*
* This file is part of the Ubicom32 Linux Kernel Port.
*
* The Ubicom32 Linux Kernel Port 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.
*
* The Ubicom32 Linux Kernel Port 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 the Ubicom32 Linux Kernel Port. If not,
* see <http://www.gnu.org/licenses/>.
*
* Ubicom32 implementation derived from (with many thanks):
* arch/m68knommu
* arch/blackfin
* arch/parisc
*/
#include <linux/platform_device.h>
#include <linux/types.h>
#include <asm/devtree.h>
#include <asm/vdc_tio.h>
/*
* Resources that this driver uses
*/
static struct resource vdc_tio_resources[] = {
/*
* Send IRQ
*/
[0] = {
/*
* The init routine will query the devtree and fill this in
*/
.flags = IORESOURCE_IRQ,
},
/*
* Receive IRQ (optional)
*/
[1] = {
/*
* The init routine will query the devtree and fill this in
*/
.flags = IORESOURCE_IRQ,
},
/*
* Memory Mapped Registers
*/
[2] = {
/*
* The init routine will query the devtree and fill this in
*/
.flags = IORESOURCE_MEM,
},
};
/*
* The platform_device structure which is passed to the driver
*/
static struct platform_device vdc_tio_platform_device = {
.name = "ubicom32fb",
.id = -1,
.resource = vdc_tio_resources,
.num_resources = ARRAY_SIZE(vdc_tio_resources),
};
/*
* vdc_tio_init
* Checks the device tree and instantiates the driver if found
*/
void __init vdc_tio_init(void)
{
/*
* Check the device tree for the vdc_tio
*/
struct vdc_tio_node *vdc_node =
(struct vdc_tio_node *)devtree_find_node("vdctio");
if (!vdc_node) {
printk(KERN_WARNING "No vdc_tio found\n");
return;
}
/*
* Fill in the resources and platform data from devtree information
*/
vdc_tio_resources[0].start = vdc_node->dn.sendirq;
vdc_tio_resources[1].start = vdc_node->dn.recvirq;
vdc_tio_resources[2].start = (u32_t)vdc_node->regs;
vdc_tio_resources[2].end = (u32_t)vdc_node->regs +
sizeof(struct vdc_tio_vp_regs);
/*
* Try to get the device registered
*/
if (platform_device_register(&vdc_tio_platform_device) < 0) {
printk(KERN_WARNING "VDC failed to register\n");
}
}
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