| /* SPDX-License-Identifier: GPL-2.0-only */ |
| |
| #include <arch/io.h> |
| #include <device/device.h> |
| #include <device/pci_ehci.h> |
| #include <console/usb.h> |
| |
| extern void *ehci_bar; |
| |
| pci_devfn_t pci_ehci_dbg_dev(unsigned hcd_idx) |
| { |
| u32 class; |
| pci_devfn_t dev; |
| |
| #if CONFIG_HAVE_USBDEBUG_OPTIONS |
| if (hcd_idx==2) |
| dev = PCI_DEV(0, 0x1a, 0); |
| else |
| dev = PCI_DEV(0, 0x1d, 0); |
| #else |
| dev = PCI_DEV(0, 0x1d, 7); |
| #endif |
| |
| class = pci_read_config32(dev, PCI_CLASS_REVISION) >> 8; |
| #if CONFIG_HAVE_USBDEBUG_OPTIONS |
| if (class != PCI_EHCI_CLASSCODE) { |
| /* If we enter here before RCBA programming, EHCI function may |
| * appear with the highest function number instead. |
| */ |
| dev |= PCI_DEV(0, 0, 7); |
| class = pci_read_config32(dev, PCI_CLASS_REVISION) >> 8; |
| } |
| #endif |
| if (class != PCI_EHCI_CLASSCODE) |
| return 0; |
| |
| return dev; |
| } |
| |
| void pci_ehci_dbg_set_port(pci_devfn_t dev, unsigned int port) |
| { |
| /* claim USB debug port */ |
| const unsigned long dbgctl_addr = |
| ((unsigned long)ehci_bar) + CONFIG_EHCI_DEBUG_OFFSET; |
| write32(dbgctl_addr, read32(dbgctl_addr) | (1 << 30)); |
| } |
| |
| void pci_ehci_dbg_enable(pci_devfn_t dev, unsigned long base) |
| { |
| } |