[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;
};

#ifdef CONFIG_DM_USB

static void ehci_pci_init(struct udevice *dev, struct ehci_hccr **ret_hccr,
			  struct ehci_hcor **ret_hcor)
{
	struct ehci_hccr *hccr;
	struct ehci_hcor *hcor;
	u32 cmd;

	hccr = (struct ehci_hccr *)dm_pci_map_bar(dev,
			PCI_BASE_ADDRESS_0, PCI_REGION_MEM);
	hcor = (struct ehci_hcor *)((uintptr_t) hccr +
			HC_LENGTH(ehci_readl(&hccr->cr_capbase)));

	debug("EHCI-PCI init hccr 0x%x and hcor 0x%x hc_length %d\n",
	      (u32)hccr, (u32)hcor,
	      (u32)HC_LENGTH(ehci_readl(&hccr->cr_capbase)));

	*ret_hccr = hccr;
	*ret_hcor = hcor;

	/* enable busmaster */
	dm_pci_read_config32(dev, PCI_COMMAND, &cmd);
	cmd |= PCI_COMMAND_MASTER;
	dm_pci_write_config32(dev, PCI_COMMAND, cmd);
}

#else

#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

static void ehci_pci_legacy_init(pci_dev_t pdev, struct ehci_hccr **ret_hccr,
				 struct ehci_hcor **ret_hcor)
{
	struct ehci_hccr *hccr;
	struct ehci_hcor *hcor;
	u32 cmd;

	hccr = (struct ehci_hccr *)pci_map_bar(pdev,
			PCI_BASE_ADDRESS_0, PCI_REGION_MEM);
	hcor = (struct ehci_hcor *)((uintptr_t) hccr +
			HC_LENGTH(ehci_readl(&hccr->cr_capbase)));

	debug("EHCI-PCI init hccr 0x%x and hcor 0x%x hc_length %d\n",
	      (u32)hccr, (u32)hcor,
	      (u32)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);
}

/*
 * 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_legacy_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_init(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
09c5c164 SG	21	#ifdef CONFIG_DM_USB
	22
	23	static void ehci_pci_init(struct udevice dev, struct ehci_hccr *ret_hccr,
	24	struct ehci_hcor **ret_hcor)
2b53b078 SG	25	{
	26	struct ehci_hccr *hccr;
	27	struct ehci_hcor *hcor;
09c5c164	28	u32 cmd;
2b53b078	29
09c5c164	30	hccr = (struct ehci_hccr *)dm_pci_map_bar(dev,
2b53b078	31	PCI_BASE_ADDRESS_0, PCI_REGION_MEM);
09c5c164	32	hcor = (struct ehci_hcor *)((uintptr_t) hccr +
2b53b078 SG	33	HC_LENGTH(ehci_readl(&hccr->cr_capbase)));
	34
	35	debug("EHCI-PCI init hccr 0x%x and hcor 0x%x hc_length %d\n",
09c5c164 SG	36	(u32)hccr, (u32)hcor,
09c5c164 SG	37	(u32)HC_LENGTH(ehci_readl(&hccr->cr_capbase)));
2b53b078 SG	38
	39	*ret_hccr = hccr;
	40	*ret_hcor = hcor;
	41
	42	/* enable busmaster */
09c5c164	43	dm_pci_read_config32(dev, PCI_COMMAND, &cmd);
2b53b078	44	cmd \|= PCI_COMMAND_MASTER;
09c5c164	45	dm_pci_write_config32(dev, PCI_COMMAND, cmd);
2b53b078 SG	46	}
2b53b078 SG	47
09c5c164	48	#else
2b53b078	49
8fea2914 MT	50	#ifdef CONFIG_PCI_EHCI_DEVICE
	51	static struct pci_device_id ehci_pci_ids[] = {
	52	/* Please add supported PCI EHCI controller ids here */
0a5f7e1b	53	{0x1033, 0x00E0}, /* NEC */
4db2fa7f	54	{0x10B9, 0x5239}, /* ULI1575 PCI EHCI module ids */
0a5f7e1b	55	{0x12D8, 0x400F}, /* Pericom */
8fea2914 MT	56	{0, 0}
	57	};
	58	#endif
	59
09c5c164 SG	60	static void ehci_pci_legacy_init(pci_dev_t pdev, struct ehci_hccr **ret_hccr,
	61	struct ehci_hcor **ret_hcor)
	62	{
	63	struct ehci_hccr *hccr;
	64	struct ehci_hcor *hcor;
	65	u32 cmd;
	66
	67	hccr = (struct ehci_hccr *)pci_map_bar(pdev,
	68	PCI_BASE_ADDRESS_0, PCI_REGION_MEM);
	69	hcor = (struct ehci_hcor *)((uintptr_t) hccr +
	70	HC_LENGTH(ehci_readl(&hccr->cr_capbase)));
	71
	72	debug("EHCI-PCI init hccr 0x%x and hcor 0x%x hc_length %d\n",
	73	(u32)hccr, (u32)hcor,
	74	(u32)HC_LENGTH(ehci_readl(&hccr->cr_capbase)));
	75
	76	*ret_hccr = hccr;
	77	*ret_hcor = hcor;
	78
	79	/* enable busmaster */
	80	pci_read_config_dword(pdev, PCI_COMMAND, &cmd);
	81	cmd \|= PCI_COMMAND_MASTER;
	82	pci_write_config_dword(pdev, PCI_COMMAND, cmd);
	83	}
	84
8fea2914 MT	85	/*
	86	* Create the appropriate control structures to manage
	87	* a new EHCI host controller.
	88	*/
127efc4f TK	89	int ehci_hcd_init(int index, enum usb_init_type init,
127efc4f TK	90	struct ehci_hccr ret_hccr, struct ehci_hcor ret_hcor)
8fea2914 MT	91	{
8fea2914 MT	92	pci_dev_t pdev;
8fea2914	93
7c38e90a	94	#ifdef CONFIG_PCI_EHCI_DEVICE
8fea2914	95	pdev = pci_find_devices(ehci_pci_ids, CONFIG_PCI_EHCI_DEVICE);
7c38e90a	96	#else
4fd46727	97	pdev = pci_find_class(PCI_CLASS_SERIAL_USB_EHCI, index);
7c38e90a VP	98	#endif
7c38e90a VP	99	if (pdev < 0) {
8fea2914 MT	100	printf("EHCI host controller not found\n");
	101	return -1;
	102	}
09c5c164	103	ehci_pci_legacy_init(pdev, ret_hccr, ret_hcor);
8fea2914	104
8fea2914 MT	105	return 0;
	106	}
	107
	108	/*
	109	* Destroy the appropriate control structures corresponding
	110	* the the EHCI host controller.
	111	*/
676ae068	112	int ehci_hcd_stop(int index)
8fea2914 MT	113	{
	114	return 0;
	115	}
2b53b078 SG	116	#endif /* nCONFIG_DM_USB */
	117
	118	#ifdef CONFIG_DM_USB
	119	static int ehci_pci_probe(struct udevice *dev)
	120	{
	121	struct ehci_hccr *hccr;
	122	struct ehci_hcor *hcor;
	123
09c5c164	124	ehci_pci_init(dev, &hccr, &hcor);
2b53b078 SG	125
	126	return ehci_register(dev, hccr, hcor, NULL, 0, USB_INIT_HOST);
	127	}
	128
	129	static int ehci_pci_remove(struct udevice *dev)
	130	{
	131	int ret;
	132
	133	ret = ehci_deregister(dev);
	134	if (ret)
	135	return ret;
	136
	137	return 0;
	138	}
	139
	140	U_BOOT_DRIVER(ehci_pci) = {
	141	.name = "ehci_pci",
	142	.id = UCLASS_USB,
	143	.probe = ehci_pci_probe,
	144	.remove = ehci_pci_remove,
	145	.ops = &ehci_usb_ops,
	146	.platdata_auto_alloc_size = sizeof(struct usb_platdata),
	147	.priv_auto_alloc_size = sizeof(struct ehci_pci_priv),
	148	.flags = DM_FLAG_ALLOC_PRIV_DMA,
	149	};
	150
	151	static struct pci_device_id ehci_pci_supported[] = {
	152	{ PCI_DEVICE_CLASS(PCI_CLASS_SERIAL_USB_EHCI, ~0) },
	153	{},
	154	};
	155
	156	U_BOOT_PCI_DEVICE(ehci_pci, ehci_pci_supported);
	157
	158	#endif /* CONFIG_DM_USB */