diff options
Diffstat (limited to 'arch/arm/plat-mxc/devices/platform-fsl-usb2-otg.c')
| -rw-r--r-- | arch/arm/plat-mxc/devices/platform-fsl-usb2-otg.c | 90 |
1 files changed, 90 insertions, 0 deletions
diff --git a/arch/arm/plat-mxc/devices/platform-fsl-usb2-otg.c b/arch/arm/plat-mxc/devices/platform-fsl-usb2-otg.c new file mode 100644 index 00000000..cbb56ff0 --- /dev/null +++ b/arch/arm/plat-mxc/devices/platform-fsl-usb2-otg.c @@ -0,0 +1,90 @@ +/* + * Copyright (C) 2011-2012 Freescale Semiconductor, Inc. All Rights Reserved. + * + * Based on Uwe Kleine-Koenig's platform-fsl-usb2-udc.c + * Copyright (C) 2010 Pengutronix + * Uwe Kleine-Koenig <u.kleine-koenig@pengutronix.de> + * + * This program is free software; you can redistribute it and/or modify it under + * the terms of the GNU General Public License version 2 as published by the + * Free Software Foundation. + */ +#include <mach/hardware.h> +#include <mach/devices-common.h> + +#define imx_fsl_usb2_otg_data_entry_single(soc) \ + { \ + .iobase = soc ## _USB_OTG_BASE_ADDR, \ + .irq = soc ## _INT_USB_OTG, \ + } + + +#ifdef CONFIG_SOC_IMX6Q +const struct imx_fsl_usb2_otg_data imx6q_fsl_usb2_otg_data __initconst = + imx_fsl_usb2_otg_data_entry_single(MX6Q); +#endif /* ifdef CONFIG_SOC_IMX6Q */ + +struct platform_device *__init imx_add_fsl_usb2_otg( + const struct imx_fsl_usb2_otg_data *data, + const struct fsl_usb2_platform_data *pdata) +{ + struct resource res[] = { + { + .start = data->iobase, + .end = data->iobase + SZ_512 - 1, + .flags = IORESOURCE_MEM, + }, { + .start = data->irq, + .end = data->irq, + .flags = IORESOURCE_IRQ, + }, + }; + + int ret = -ENOMEM; + const char *name = "fsl-usb2-otg"; + int id = -1; + unsigned int num_resources = ARRAY_SIZE(res); + size_t size_data = sizeof(*pdata); + u64 dmamask = DMA_BIT_MASK(32); + struct platform_device *pdev; + + pdev = platform_device_alloc(name, id); + if (!pdev) + goto err; + + if (dmamask) { + /* + * This memory isn't freed when the device is put, + * I don't have a nice idea for that though. Conceptually + * dma_mask in struct device should not be a pointer. + * See http://thread.gmane.org/gmane.linux.kernel.pci/9081 + */ + pdev->dev.dma_mask = + kmalloc(sizeof(*pdev->dev.dma_mask), GFP_KERNEL); + if (!pdev->dev.dma_mask) + /* ret is still -ENOMEM; */ + goto err; + + *pdev->dev.dma_mask = dmamask; + pdev->dev.coherent_dma_mask = dmamask; + } + + ret = platform_device_add_resources(pdev, res, num_resources); + if (ret) + goto err; + + if (data) { + ret = platform_device_add_data(pdev, pdata, size_data); + if (ret) + goto err; + } + + return pdev; +err: + if (dmamask) + kfree(pdev->dev.dma_mask); + platform_device_put(pdev); + return ERR_PTR(ret); +} +EXPORT_SYMBOL(imx_add_fsl_usb2_otg); + |