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author | Linus Torvalds <torvalds@linux-foundation.org> | 2011-01-07 03:50:35 +0300 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2011-01-07 03:50:35 +0300 |
commit | 3c0cb7c31c206aaedb967e44b98442bbeb17a6c4 (patch) | |
tree | 3ecba45d7ffae4fba4a5aafaef4af5b0b1105bde /arch/arm/mach-ux500/devices-common.c | |
parent | f70f5b9dc74ca7d0a64c4ead3fb28da09dc1b234 (diff) | |
parent | 404a02cbd2ae8bf256a2fa1169bdfe86bb5ebb34 (diff) | |
download | linux-3c0cb7c31c206aaedb967e44b98442bbeb17a6c4.tar.xz |
Merge branch 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm
* 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm: (416 commits)
ARM: DMA: add support for DMA debugging
ARM: PL011: add DMA burst threshold support for ST variants
ARM: PL011: Add support for transmit DMA
ARM: PL011: Ensure IRQs are disabled in UART interrupt handler
ARM: PL011: Separate hardware FIFO size from TTY FIFO size
ARM: PL011: Allow better handling of vendor data
ARM: PL011: Ensure error flags are clear at startup
ARM: PL011: include revision number in boot-time port printk
ARM: vexpress: add sched_clock() for Versatile Express
ARM i.MX53: Make MX53 EVK bootable
ARM i.MX53: Some bug fix about MX53 MSL code
ARM: 6607/1: sa1100: Update platform device registration
ARM: 6606/1: sa1100: Fix platform device registration
ARM i.MX51: rename IPU irqs
ARM i.MX51: Add ipu clock support
ARM: imx/mx27_3ds: Add PMIC support
ARM: DMA: Replace page_to_dma()/dma_to_page() with pfn_to_dma()/dma_to_pfn()
mx51: fix usb clock support
MX51: Add support for usb host 2
arch/arm/plat-mxc/ehci.c: fix errors/typos
...
Diffstat (limited to 'arch/arm/mach-ux500/devices-common.c')
-rw-r--r-- | arch/arm/mach-ux500/devices-common.c | 145 |
1 files changed, 145 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 000000000000..fe69f5fac1bb --- /dev/null +++ b/arch/arm/mach-ux500/devices-common.c @@ -0,0 +1,145 @@ +/* + * 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); + } +} |