[people/ms/u-boot.git] / drivers / usb / host / ehci-pci.c

/*-
 * Copyright (c) 2007-2008, Juniper Networks, Inc.
 * All rights reserved.
 *
 * SPDX-License-Identifier:	GPL-2.0
 */

#include <common.h>
#include <dm.h>
#include <errno.h>
#include <pci.h>
#include <usb.h>

#include "ehci.h"

/* Information about a USB port */
struct ehci_pci_priv {
	struct ehci_ctrl ehci;
};

static void ehci_pci_common_init(pci_dev_t pdev, struct ehci_hccr **ret_hccr,
				 struct ehci_hcor **ret_hcor)
{
	struct ehci_hccr *hccr;
	struct ehci_hcor *hcor;
	uint32_t cmd;

	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);
}

#ifndef CONFIG_DM_USB

#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 */
	{0, 0}
};
#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;

#ifdef CONFIG_PCI_EHCI_DEVICE
	pdev = pci_find_devices(ehci_pci_ids, CONFIG_PCI_EHCI_DEVICE);
#else
	pdev = pci_find_class(PCI_CLASS_SERIAL_USB_EHCI, index);
#endif
	if (pdev < 0) {
		printf("EHCI host controller not found\n");
		return -1;
	}
	ehci_pci_common_init(pdev, ret_hccr, ret_hcor);

	return 0;
}

/*
 * Destroy the appropriate control structures corresponding
 * the the EHCI host controller.
 */
int ehci_hcd_stop(int index)
{
	return 0;
}
#endif /* nCONFIG_DM_USB */

#ifdef CONFIG_DM_USB
static int ehci_pci_probe(struct udevice *dev)
{
	struct ehci_hccr *hccr;
	struct ehci_hcor *hcor;

	ehci_pci_common_init(dm_pci_get_bdf(dev), &hccr, &hcor);

	return ehci_register(dev, hccr, hcor, NULL, 0, USB_INIT_HOST);
}

static int ehci_pci_remove(struct udevice *dev)
{
	int ret;

	ret = ehci_deregister(dev);
	if (ret)
		return ret;

	return 0;
}

U_BOOT_DRIVER(ehci_pci) = {
	.name	= "ehci_pci",
	.id	= UCLASS_USB,
	.probe = ehci_pci_probe,
	.remove = ehci_pci_remove,
	.ops	= &ehci_usb_ops,
	.platdata_auto_alloc_size = sizeof(struct usb_platdata),
	.priv_auto_alloc_size = sizeof(struct ehci_pci_priv),
	.flags	= DM_FLAG_ALLOC_PRIV_DMA,
};

static struct pci_device_id ehci_pci_supported[] = {
	{ PCI_DEVICE_CLASS(PCI_CLASS_SERIAL_USB_EHCI, ~0) },
	{},
};

U_BOOT_PCI_DEVICE(ehci_pci, ehci_pci_supported);

#endif /* CONFIG_DM_USB */
Commit	Line	Data
8fea2914 MT	1	/*-
	2	* Copyright (c) 2007-2008, Juniper Networks, Inc.
	3	* All rights reserved.
	4	*
e62b5266	5	* SPDX-License-Identifier: GPL-2.0
8fea2914 MT	6	*/
	7
	8	#include <common.h>
2b53b078	9	#include <dm.h>
7c38e90a	10	#include <errno.h>
8fea2914 MT	11	#include <pci.h>
8fea2914 MT	12	#include <usb.h>
2731b9a8 JCPV	13
2731b9a8 JCPV	14	#include "ehci.h"
8fea2914	15
2b53b078 SG	16	/* Information about a USB port */
	17	struct ehci_pci_priv {
	18	struct ehci_ctrl ehci;
	19	};
	20
	21	static void ehci_pci_common_init(pci_dev_t pdev, struct ehci_hccr **ret_hccr,
	22	struct ehci_hcor **ret_hcor)
	23	{
	24	struct ehci_hccr *hccr;
	25	struct ehci_hcor *hcor;
	26	uint32_t cmd;
	27
	28	hccr = (struct ehci_hccr *)pci_map_bar(pdev,
	29	PCI_BASE_ADDRESS_0, PCI_REGION_MEM);
	30	hcor = (struct ehci_hcor *)((uint32_t) hccr +
	31	HC_LENGTH(ehci_readl(&hccr->cr_capbase)));
	32
	33	debug("EHCI-PCI init hccr 0x%x and hcor 0x%x hc_length %d\n",
	34	(uint32_t)hccr, (uint32_t)hcor,
	35	(uint32_t)HC_LENGTH(ehci_readl(&hccr->cr_capbase)));
	36
	37	*ret_hccr = hccr;
	38	*ret_hcor = hcor;
	39
	40	/* enable busmaster */
	41	pci_read_config_dword(pdev, PCI_COMMAND, &cmd);
	42	cmd \|= PCI_COMMAND_MASTER;
	43	pci_write_config_dword(pdev, PCI_COMMAND, cmd);
	44	}
	45
	46	#ifndef CONFIG_DM_USB
	47
8fea2914 MT	48	#ifdef CONFIG_PCI_EHCI_DEVICE
	49	static struct pci_device_id ehci_pci_ids[] = {
	50	/* Please add supported PCI EHCI controller ids here */
0a5f7e1b	51	{0x1033, 0x00E0}, /* NEC */
4db2fa7f	52	{0x10B9, 0x5239}, /* ULI1575 PCI EHCI module ids */
0a5f7e1b	53	{0x12D8, 0x400F}, /* Pericom */
8fea2914 MT	54	{0, 0}
	55	};
	56	#endif
	57
	58	/*
	59	* Create the appropriate control structures to manage
	60	* a new EHCI host controller.
	61	*/
127efc4f TK	62	int ehci_hcd_init(int index, enum usb_init_type init,
127efc4f TK	63	struct ehci_hccr ret_hccr, struct ehci_hcor ret_hcor)
8fea2914 MT	64	{
8fea2914 MT	65	pci_dev_t pdev;
8fea2914	66
7c38e90a	67	#ifdef CONFIG_PCI_EHCI_DEVICE
8fea2914	68	pdev = pci_find_devices(ehci_pci_ids, CONFIG_PCI_EHCI_DEVICE);
7c38e90a	69	#else
4fd46727	70	pdev = pci_find_class(PCI_CLASS_SERIAL_USB_EHCI, index);
7c38e90a VP	71	#endif
7c38e90a VP	72	if (pdev < 0) {
8fea2914 MT	73	printf("EHCI host controller not found\n");
	74	return -1;
	75	}
2b53b078	76	ehci_pci_common_init(pdev, ret_hccr, ret_hcor);
8fea2914	77
8fea2914 MT	78	return 0;
	79	}
	80
	81	/*
	82	* Destroy the appropriate control structures corresponding
	83	* the the EHCI host controller.
	84	*/
676ae068	85	int ehci_hcd_stop(int index)
8fea2914 MT	86	{
	87	return 0;
	88	}
2b53b078 SG	89	#endif /* nCONFIG_DM_USB */
	90
	91	#ifdef CONFIG_DM_USB
	92	static int ehci_pci_probe(struct udevice *dev)
	93	{
	94	struct ehci_hccr *hccr;
	95	struct ehci_hcor *hcor;
	96
21ccce1b	97	ehci_pci_common_init(dm_pci_get_bdf(dev), &hccr, &hcor);
2b53b078 SG	98
	99	return ehci_register(dev, hccr, hcor, NULL, 0, USB_INIT_HOST);
	100	}
	101
	102	static int ehci_pci_remove(struct udevice *dev)
	103	{
	104	int ret;
	105
	106	ret = ehci_deregister(dev);
	107	if (ret)
	108	return ret;
	109
	110	return 0;
	111	}
	112
	113	U_BOOT_DRIVER(ehci_pci) = {
	114	.name = "ehci_pci",
	115	.id = UCLASS_USB,
	116	.probe = ehci_pci_probe,
	117	.remove = ehci_pci_remove,
	118	.ops = &ehci_usb_ops,
	119	.platdata_auto_alloc_size = sizeof(struct usb_platdata),
	120	.priv_auto_alloc_size = sizeof(struct ehci_pci_priv),
	121	.flags = DM_FLAG_ALLOC_PRIV_DMA,
	122	};
	123
	124	static struct pci_device_id ehci_pci_supported[] = {
	125	{ PCI_DEVICE_CLASS(PCI_CLASS_SERIAL_USB_EHCI, ~0) },
	126	{},
	127	};
	128
	129	U_BOOT_PCI_DEVICE(ehci_pci, ehci_pci_supported);
	130
	131	#endif /* CONFIG_DM_USB */