Add support for operating a PHY attached to ehci-pci. There are systems where the EHCI controller is internally wired to a PCI bus and has a PHY connected to it as well, ie. the R-Car Gen2.
Signed-off-by: Marek Vasut marek.vasut+renesas@gmail.com --- drivers/usb/host/ehci-pci.c | 32 ++++++++++++++++++++++++++++---- 1 file changed, 28 insertions(+), 4 deletions(-)
diff --git a/drivers/usb/host/ehci-pci.c b/drivers/usb/host/ehci-pci.c index a56e5bd144..fa0b88bafd 100644 --- a/drivers/usb/host/ehci-pci.c +++ b/drivers/usb/host/ehci-pci.c @@ -10,23 +10,30 @@ #include <pci.h> #include <usb.h> #include <asm/io.h> +#include <generic-phy.h>
#include "ehci.h"
/* Information about a USB port */ struct ehci_pci_priv { struct ehci_ctrl ehci; + struct phy phy; };
#ifdef CONFIG_DM_USB - -static void ehci_pci_init(struct udevice *dev, struct ehci_hccr **ret_hccr, +static int ehci_pci_init(struct udevice *dev, struct ehci_hccr **ret_hccr, struct ehci_hcor **ret_hcor) { + struct ehci_pci_priv *priv = dev_get_priv(dev); struct ehci_hccr *hccr; struct ehci_hcor *hcor; + int ret; u32 cmd;
+ ret = ehci_setup_phy(dev, &priv->phy, 0); + if (ret) + return ret; + hccr = (struct ehci_hccr *)dm_pci_map_bar(dev, PCI_BASE_ADDRESS_0, PCI_REGION_MEM); hcor = (struct ehci_hcor *)((uintptr_t) hccr + @@ -43,6 +50,8 @@ static void ehci_pci_init(struct udevice *dev, struct ehci_hccr **ret_hccr, dm_pci_read_config32(dev, PCI_COMMAND, &cmd); cmd |= PCI_COMMAND_MASTER; dm_pci_write_config32(dev, PCI_COMMAND, cmd); + + return 0; }
#else @@ -120,12 +129,27 @@ static int ehci_pci_probe(struct udevice *dev) { struct ehci_hccr *hccr; struct ehci_hcor *hcor; + int ret;
- ehci_pci_init(dev, &hccr, &hcor); + ret = ehci_pci_init(dev, &hccr, &hcor); + if (ret) + return ret;
return ehci_register(dev, hccr, hcor, NULL, 0, USB_INIT_HOST); }
+static int ehci_pci_remove(struct udevice *dev) +{ + struct ehci_pci_priv *priv = dev_get_priv(dev); + int ret; + + ret = ehci_deregister(dev); + if (ret) + return ret; + + return ehci_shutdown_phy(dev, &priv->phy); +} + static const struct udevice_id ehci_pci_ids[] = { { .compatible = "ehci-pci" }, { } @@ -135,7 +159,7 @@ U_BOOT_DRIVER(ehci_pci) = { .name = "ehci_pci", .id = UCLASS_USB, .probe = ehci_pci_probe, - .remove = ehci_deregister, + .remove = ehci_pci_remove, .of_match = ehci_pci_ids, .ops = &ehci_usb_ops, .platdata_auto_alloc_size = sizeof(struct usb_platdata),