diff options
| author | Tim Wawrzynczak <twawrzynczak@chromium.org> | 2020-10-07 13:47:33 -0600 |
|---|---|---|
| committer | Tim Wawrzynczak <twawrzynczak@chromium.org> | 2020-10-14 02:54:23 +0000 |
| commit | 950305de0a21d4505e45229d25eb576c687554a1 (patch) | |
| tree | 6e66a6e444932a7b1b9e7401de1347407f79b72e | |
| parent | 72464a47950987fd8f615a122a6a5665f5fa016a (diff) | |
soc/intel/common: Add PCI driver for USB4 ports
In order to enable SSDT generation for the DMA component of Intel USB4
ports, a PCI driver is required. This patch more or less adds a
`scan_bus` callback that will handle non-PCI devices downstream.
Change-Id: Ib9da051307b883eb99e500114378c9fd842ffc92
Signed-off-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/46141
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
| -rw-r--r-- | src/soc/intel/common/block/usb4/Kconfig | 6 | ||||
| -rw-r--r-- | src/soc/intel/common/block/usb4/Makefile.inc | 1 | ||||
| -rw-r--r-- | src/soc/intel/common/block/usb4/usb4.c | 25 |
3 files changed, 32 insertions, 0 deletions
diff --git a/src/soc/intel/common/block/usb4/Kconfig b/src/soc/intel/common/block/usb4/Kconfig new file mode 100644 index 0000000000..1516e758c7 --- /dev/null +++ b/src/soc/intel/common/block/usb4/Kconfig @@ -0,0 +1,6 @@ +config SOC_INTEL_COMMON_BLOCK_USB4 + bool + default n + help + Minimal PCI Driver for enabling SSDT generation for the DMA component + of Intel Thunderbolt/USB4 ports. diff --git a/src/soc/intel/common/block/usb4/Makefile.inc b/src/soc/intel/common/block/usb4/Makefile.inc new file mode 100644 index 0000000000..7dad4ba972 --- /dev/null +++ b/src/soc/intel/common/block/usb4/Makefile.inc @@ -0,0 +1 @@ +ramstage-$(CONFIG_SOC_INTEL_COMMON_BLOCK_USB4) += usb4.c diff --git a/src/soc/intel/common/block/usb4/usb4.c b/src/soc/intel/common/block/usb4/usb4.c new file mode 100644 index 0000000000..a0afc20f5b --- /dev/null +++ b/src/soc/intel/common/block/usb4/usb4.c @@ -0,0 +1,25 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ + +#include <device/device.h> +#include <device/pci.h> +#include <device/pci_ids.h> + +static const unsigned short pci_device_ids[] = { + PCI_DEVICE_ID_INTEL_TGL_TBT_DMA0, + PCI_DEVICE_ID_INTEL_TGL_TBT_DMA1, + 0 +}; + +static struct device_operations usb4_dev_ops = { + .read_resources = pci_dev_read_resources, + .set_resources = pci_dev_set_resources, + .enable_resources = pci_dev_enable_resources, + .scan_bus = scan_generic_bus, + .ops_pci = &pci_dev_ops_pci, +}; + +static const struct pci_driver usb4_driver __pci_driver = { + .ops = &usb4_dev_ops, + .vendor = PCI_VENDOR_ID_INTEL, + .devices = pci_device_ids, +}; |