146 lines
2.9 KiB
C
146 lines
2.9 KiB
C
/*
|
|
* Copyright (C) ST-Ericsson SA 2010
|
|
*
|
|
* Author: Rabin Vincent <rabin.vincent@stericsson.com> for ST-Ericsson
|
|
* License terms: GNU General Public License (GPL), version 2.
|
|
*/
|
|
|
|
#include <linux/kernel.h>
|
|
#include <linux/dma-mapping.h>
|
|
#include <linux/err.h>
|
|
#include <linux/irq.h>
|
|
#include <linux/slab.h>
|
|
#include <linux/platform_device.h>
|
|
#include <linux/amba/bus.h>
|
|
|
|
#include <plat/gpio.h>
|
|
|
|
#include <mach/hardware.h>
|
|
|
|
#include "devices-common.h"
|
|
|
|
struct amba_device *
|
|
dbx500_add_amba_device(const char *name, resource_size_t base,
|
|
int irq, void *pdata, unsigned int periphid)
|
|
{
|
|
struct amba_device *dev;
|
|
int ret;
|
|
|
|
dev = kzalloc(sizeof *dev, GFP_KERNEL);
|
|
if (!dev)
|
|
return ERR_PTR(-ENOMEM);
|
|
|
|
dev->dev.init_name = name;
|
|
|
|
dev->res.start = base;
|
|
dev->res.end = base + SZ_4K - 1;
|
|
dev->res.flags = IORESOURCE_MEM;
|
|
|
|
dev->dma_mask = DMA_BIT_MASK(32);
|
|
dev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
|
|
|
|
dev->irq[0] = irq;
|
|
dev->irq[1] = NO_IRQ;
|
|
|
|
dev->periphid = periphid;
|
|
|
|
dev->dev.platform_data = pdata;
|
|
|
|
ret = amba_device_register(dev, &iomem_resource);
|
|
if (ret) {
|
|
kfree(dev);
|
|
return ERR_PTR(ret);
|
|
}
|
|
|
|
return dev;
|
|
}
|
|
|
|
static struct platform_device *
|
|
dbx500_add_platform_device(const char *name, int id, void *pdata,
|
|
struct resource *res, int resnum)
|
|
{
|
|
struct platform_device *dev;
|
|
int ret;
|
|
|
|
dev = platform_device_alloc(name, id);
|
|
if (!dev)
|
|
return ERR_PTR(-ENOMEM);
|
|
|
|
dev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
|
|
dev->dev.dma_mask = &dev->dev.coherent_dma_mask;
|
|
|
|
ret = platform_device_add_resources(dev, res, resnum);
|
|
if (ret)
|
|
goto out_free;
|
|
|
|
dev->dev.platform_data = pdata;
|
|
|
|
ret = platform_device_add(dev);
|
|
if (ret)
|
|
goto out_free;
|
|
|
|
return dev;
|
|
|
|
out_free:
|
|
platform_device_put(dev);
|
|
return ERR_PTR(ret);
|
|
}
|
|
|
|
struct platform_device *
|
|
dbx500_add_platform_device_4k1irq(const char *name, int id,
|
|
resource_size_t base,
|
|
int irq, void *pdata)
|
|
{
|
|
struct resource resources[] = {
|
|
[0] = {
|
|
.start = base,
|
|
.end = base + SZ_4K - 1,
|
|
.flags = IORESOURCE_MEM,
|
|
},
|
|
[1] = {
|
|
.start = irq,
|
|
.end = irq,
|
|
.flags = IORESOURCE_IRQ,
|
|
}
|
|
};
|
|
|
|
return dbx500_add_platform_device(name, id, pdata, resources,
|
|
ARRAY_SIZE(resources));
|
|
}
|
|
|
|
static struct platform_device *
|
|
dbx500_add_gpio(int id, resource_size_t addr, int irq,
|
|
struct nmk_gpio_platform_data *pdata)
|
|
{
|
|
struct resource resources[] = {
|
|
{
|
|
.start = addr,
|
|
.end = addr + 127,
|
|
.flags = IORESOURCE_MEM,
|
|
},
|
|
{
|
|
.start = irq,
|
|
.end = irq,
|
|
.flags = IORESOURCE_IRQ,
|
|
}
|
|
};
|
|
|
|
return platform_device_register_resndata(NULL, "gpio", id,
|
|
resources, ARRAY_SIZE(resources),
|
|
pdata, sizeof(*pdata));
|
|
}
|
|
|
|
void dbx500_add_gpios(resource_size_t *base, int num, int irq,
|
|
struct nmk_gpio_platform_data *pdata)
|
|
{
|
|
int first = 0;
|
|
int i;
|
|
|
|
for (i = 0; i < num; i++, first += 32, irq++) {
|
|
pdata->first_gpio = first;
|
|
pdata->first_irq = NOMADIK_GPIO_TO_IRQ(first);
|
|
|
|
dbx500_add_gpio(i, base[i], irq, pdata);
|
|
}
|
|
}
|