From 950305de0a21d4505e45229d25eb576c687554a1 Mon Sep 17 00:00:00 2001 From: Tim Wawrzynczak Date: Wed, 7 Oct 2020 13:47:33 -0600 Subject: 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 Reviewed-on: https://review.coreboot.org/c/coreboot/+/46141 Tested-by: build bot (Jenkins) Reviewed-by: Furquan Shaikh --- src/soc/intel/common/block/usb4/Kconfig | 6 ++++++ src/soc/intel/common/block/usb4/Makefile.inc | 1 + src/soc/intel/common/block/usb4/usb4.c | 25 +++++++++++++++++++++++++ 3 files changed, 32 insertions(+) create mode 100644 src/soc/intel/common/block/usb4/Kconfig create mode 100644 src/soc/intel/common/block/usb4/Makefile.inc create mode 100644 src/soc/intel/common/block/usb4/usb4.c (limited to 'src') 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 +#include +#include + +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, +}; -- cgit v1.2.3