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ehci-pci.c 2.29 KiB
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  • /*-
     * Copyright (c) 2007-2008, Juniper Networks, Inc.
     * All rights reserved.
     *
     * This program is free software; you can redistribute it and/or
     * modify it under the terms of the GNU General Public License as
     * published by the Free Software Foundation version 2 of
     * the License.
     *
     * This program is distributed in the hope that it will be useful,
     * but WITHOUT ANY WARRANTY; without even the implied warranty of
     * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     * GNU General Public License for more details.
     *
     * You should have received a copy of the GNU General Public License
     * along with this program; if not, write to the Free Software
     * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
     * MA 02111-1307 USA
     */
    
    #include <common.h>
    
    #include <errno.h>
    
    #include <pci.h>
    #include <usb.h>
    
    
    #ifdef CONFIG_PCI_EHCI_DEVICE
    static struct pci_device_id ehci_pci_ids[] = {
    	/* Please add supported PCI EHCI controller ids here */
    
    	{0x1033, 0x00E0},	/* NEC */
    
    	{0x10B9, 0x5239},	/* ULI1575 PCI EHCI module ids */
    
    	{0x12D8, 0x400F},	/* Pericom */
    
    #endif
    
    /*
     * Create the appropriate control structures to manage
     * a new EHCI host controller.
     */
    
    int ehci_hcd_init(int index, enum usb_init_type init,
    		struct ehci_hccr **ret_hccr, struct ehci_hcor **ret_hcor)
    
    {
    	pci_dev_t pdev;
    
    	uint32_t cmd;
    
    	struct ehci_hccr *hccr;
    	struct ehci_hcor *hcor;
    
    #ifdef CONFIG_PCI_EHCI_DEVICE
    
    	pdev = pci_find_devices(ehci_pci_ids, CONFIG_PCI_EHCI_DEVICE);
    
    	pdev = pci_find_class(PCI_CLASS_SERIAL_USB_EHCI, index);
    
    #endif
    	if (pdev < 0) {
    
    		printf("EHCI host controller not found\n");
    		return -1;
    	}
    
    
    	hccr = (struct ehci_hccr *)pci_map_bar(pdev,
    
    			PCI_BASE_ADDRESS_0, PCI_REGION_MEM);
    
    	hcor = (struct ehci_hcor *)((uint32_t) hccr +
    			HC_LENGTH(ehci_readl(&hccr->cr_capbase)));
    
    	debug("EHCI-PCI init hccr 0x%x and hcor 0x%x hc_length %d\n",
    
    			(uint32_t)hccr, (uint32_t)hcor,
    			(uint32_t)HC_LENGTH(ehci_readl(&hccr->cr_capbase)));
    
    	*ret_hccr = hccr;
    	*ret_hcor = hcor;
    
    	/* enable busmaster */
    	pci_read_config_dword(pdev, PCI_COMMAND, &cmd);
    	cmd |= PCI_COMMAND_MASTER;
    	pci_write_config_dword(pdev, PCI_COMMAND, cmd);
    
    	return 0;
    }
    
    /*
     * Destroy the appropriate control structures corresponding
     * the the EHCI host controller.
     */
    
    int ehci_hcd_stop(int index)