diff options
Diffstat (limited to 'arch/arm/mach-ux500/devices-common.c')
-rw-r--r-- | arch/arm/mach-ux500/devices-common.c | 94 |
1 files changed, 94 insertions, 0 deletions
diff --git a/arch/arm/mach-ux500/devices-common.c b/arch/arm/mach-ux500/devices-common.c new file mode 100644 index 00000000..c5312a4b --- /dev/null +++ b/arch/arm/mach-ux500/devices-common.c @@ -0,0 +1,94 @@ +/* + * 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-nomadik.h> + +#include <mach/hardware.h> + +#include "devices-common.h" + +struct amba_device * +dbx500_add_amba_device(struct device *parent, const char *name, + resource_size_t base, int irq, void *pdata, + unsigned int periphid) +{ + struct amba_device *dev; + int ret; + + dev = amba_device_alloc(name, base, SZ_4K); + if (!dev) + return ERR_PTR(-ENOMEM); + + dev->dma_mask = DMA_BIT_MASK(32); + dev->dev.coherent_dma_mask = DMA_BIT_MASK(32); + + dev->irq[0] = irq; + + dev->periphid = periphid; + + dev->dev.platform_data = pdata; + + dev->dev.parent = parent; + + ret = amba_device_add(dev, &iomem_resource); + if (ret) { + amba_device_put(dev); + return ERR_PTR(ret); + } + + return dev; +} + +static struct platform_device * +dbx500_add_gpio(struct device *parent, 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( + parent, + "gpio", + id, + resources, + ARRAY_SIZE(resources), + pdata, + sizeof(*pdata)); +} + +void dbx500_add_gpios(struct device *parent, 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); + pdata->num_gpio = 32; + + dbx500_add_gpio(parent, i, base[i], irq, pdata); + } +} |