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dm: usb: Add driver-model support to ehci-pci

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Support driver model in this driver. This uses the normal USB driver search
mechanism. Any EHCI controllers will be set up as they are found during
usb_init().

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Marek Vasut <marex@denx.de>
This commit is contained in:
Simon Glass 2015-07-06 16:47:53 -06:00
parent 4a41cc1578
commit 2b53b078d7
1 changed files with 77 additions and 20 deletions
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97
drivers/usb/host/ehci-pci.c
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@ -6,12 +6,45 @@
*/
#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 */
@ -20,7 +53,6 @@ static struct pci_device_id ehci_pci_ids[] = {
{0x12D8, 0x400F}, /* Pericom */
{0, 0}
};
#else
#endif
/*
@ -31,9 +63,6 @@ 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);
@ -44,23 +73,8 @@ int ehci_hcd_init(int index, enum usb_init_type init,
printf("EHCI host controller not found\n");
return -1;
}
ehci_pci_common_init(pdev, ret_hccr, ret_hcor);
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;
}
@ -72,3 +86,46 @@ 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(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 */