1 // SPDX-License-Identifier: GPL-2.0
4  * Broadcom USB-core driver  (SSB bus glue)
6  * Copyright 2011-2012 Hauke Mehrtens <hauke@hauke-m.de>
8  * Based on ssb-ohci driver
11  * Derived from the OHCI-PCI driver
13  * Copyright 2000-2002 David Brownell
17  * Derived from the USBcore related parts of Broadcom-SB
18  * Copyright 2005-2011 Broadcom Corporation
25 #include <linux/usb/ehci_pdriver.h>
26 #include <linux/usb/ohci_pdriver.h>
29 MODULE_DESCRIPTION("Common USB driver for SSB Bus");
45 	if (dev->id.revision == 2 && dev->bus->chip_id == 0x5354) {  in ssb_hcd_5354wa()
57 	if (dev->id.coreid == SSB_DEV_USB20_HOST) {  in ssb_hcd_usb20wa()
59 		 * USB 2.0 special considerations:  in ssb_hcd_usb20wa()
62 		 * Control Register must be programmed to bring the USB core  in ssb_hcd_usb20wa()
81 /* based on arch/mips/brcm-boards/bcm947xx/pcibios.c */
86 	if (dev->id.coreid == SSB_DEV_USB11_HOSTDEV)  in ssb_hcd_init_chip()
87 		/* Put the device into host-mode. */  in ssb_hcd_init_chip()
112 	hci_res[0].end = hci_res[0].start + len - 1;  in ssb_hcd_create_pdev()
115 	hci_res[1].start = dev->irq;  in ssb_hcd_create_pdev()
118 	hci_dev = platform_device_alloc(ohci ? "ohci-platform" :  in ssb_hcd_create_pdev()
119 					"ehci-platform" , 0);  in ssb_hcd_create_pdev()
121 		return ERR_PTR(-ENOMEM);  in ssb_hcd_create_pdev()
123 	hci_dev->dev.parent = dev->dev;  in ssb_hcd_create_pdev()
124 	hci_dev->dev.dma_mask = &hci_dev->dev.coherent_dma_mask;  in ssb_hcd_create_pdev()
155 	u16 coreid = dev->id.coreid;  in ssb_hcd_probe()
159 	chipid_top = (dev->bus->chip_id & 0xFF00);  in ssb_hcd_probe()
161 		return -ENODEV;  in ssb_hcd_probe()
165 	if (dma_set_mask_and_coherent(dev->dma_dev, DMA_BIT_MASK(32)))  in ssb_hcd_probe()
166 		return -EOPNOTSUPP;  in ssb_hcd_probe()
168 	usb_dev = devm_kzalloc(dev->dev, sizeof(struct ssb_hcd_device),  in ssb_hcd_probe()
171 		return -ENOMEM;  in ssb_hcd_probe()
173 	/* We currently always attach SSB_DEV_USB11_HOSTDEV  in ssb_hcd_probe()
174 	 * as HOST OHCI. If we want to attach it as Client device,  in ssb_hcd_probe()
177 	usb_dev->enable_flags = ssb_hcd_init_chip(dev);  in ssb_hcd_probe()
183 	usb_dev->ohci_dev = ssb_hcd_create_pdev(dev, true, start, len);  in ssb_hcd_probe()
184 	if (IS_ERR(usb_dev->ohci_dev))  in ssb_hcd_probe()
185 		return PTR_ERR(usb_dev->ohci_dev);  in ssb_hcd_probe()
189 		usb_dev->ehci_dev = ssb_hcd_create_pdev(dev, false, start, len);  in ssb_hcd_probe()
190 		if (IS_ERR(usb_dev->ehci_dev)) {  in ssb_hcd_probe()
191 			err = PTR_ERR(usb_dev->ehci_dev);  in ssb_hcd_probe()
200 	platform_device_unregister(usb_dev->ohci_dev);  in ssb_hcd_probe()
207 	struct platform_device *ohci_dev = usb_dev->ohci_dev;  in ssb_hcd_remove()
208 	struct platform_device *ehci_dev = usb_dev->ehci_dev;  in ssb_hcd_remove()
236 	ssb_device_enable(dev, usb_dev->enable_flags);  in ssb_hcd_resume()