v1:
1. Add PCIe PHY, CFG, and MMIO window support for AST2600.
Note: Only supports RC_H.
2. Add PCIe PHY, CFG, and MMIO window support for AST2700.
Note: Supports 3 RCs.
v2:
1. Introduce a new root port device.
2. For AST2600 RC_H, add the root device at 80:00.0 and a root port at
80.08.0
to match the real hardware topology, allowing users to attach PCIe devices
at the root port.
3. For AST2700, add a root port at 00.00.0 for each PCIe root complex to match
the real hardware topology, allowing users to attach PCIe devices at the
root port.
Dependencies
QEMU version:
https://github.com/qemu/qemu/commit/6a9fa5ef3230a7d51e0d953a59ee9ef10af705b8
his patch series depends on the following patch series:
1.
https://patchwork.kernel.org/project/qemu-devel/patch/20250902062550.3797040-1-jamin_...@aspeedtech.com/
2.
https://patchwork.kernel.org/project/qemu-devel/cover/20250904100556.1729604-1-kane_c...@aspeedtech.com/
Testing the PCIe Root Complex model with the e1000e PCIe device
AST2600 test environment
Test image: ASPEED SDK v09.07
Download
https://github.com/AspeedTech-BMC/openbmc/releases/download/v09.07/ast2600-default-obmc.tar.gz
When booted, lspci should show one root device at 80:00.0 and a root
port at 80:08.0, matching the expected hardware topology:
```
root@ast2600-default:~# lspci
80:00.0 Host bridge: ASPEED Technology, Inc. Device 2600
80:08.0 PCI bridge: ASPEED Technology, Inc. AST1150 PCI-to-PCI Bridge
```
The e1000e driver is included in this image. Attach the e1000e device on
bus pcie.0 with the following command line:
```
-device e1000e,netdev=net0,bus=pcie.0 \
-netdev user,id=net0,hostfwd=:127.0.0.1:3222-:22,hostname=qemu0 \
```
After boot, lspci should show the e1000e device enumerated at 81:00.0:
```
root@ast2600-default:~# lspci
80:00.0 Host bridge: ASPEED Technology, Inc. Device 2600
80:08.0 PCI bridge: ASPEED Technology, Inc. AST1150 PCI-to-PCI Bridge
81:00.0 Ethernet controller: Intel Corporation 82574L Gigabit Network Connection
```
The e1000e driver should probe successfully, and a new Ethernet interface
should appear:
```
root@ast2600-default:~# ifconfig
eth4 Link encap:Ethernet HWaddr 52:54:00:12:34:5A
inet addr:10.0.2.15 Bcast:10.0.2.255 Mask:255.255.255.0
inet6 addr: fe80::5054:ff:fe12:345a/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:25 errors:0 dropped:0 overruns:0 frame:0
TX packets:57 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:5524 (5.3 KiB) TX bytes:8488 (8.2 KiB)
Interrupt:81 Memory:70040000-70060000
```
AST2700 test environment
Test image: ASPEED SDK v09.07
Download
https://github.com/AspeedTech-BMC/openbmc/releases/download/v09.07/ast2700-default-obmc.tar.gz
By default, the ASPEED SDK only enables PCIe root complex 2 (RC2). If you
want to test all three PCIe root complexes, please use the customized
image provided here:
https://github.com/jamin-aspeed/openbmc/releases/download/qemu-test-0907/ast2700-default-pcie-qemu.tar.xz
When booted, lspci should show one root port at 00:00.0 on the
pcie.2 bus. The domain for PCIe RC2 is 0002, which matches the
expected hardware topology:
```
root@ast2700-default:~# lspci
0002:00:00.0 PCI bridge: ASPEED Technology, Inc. AST1150 PCI-to-PCI Bridge
```
The e1000e driver is included in this image. Attach the e1000e device to
bus pcie.2 using the following command line:
```
-device e1000e,netdev=net0,bus=pcie.2 \
-netdev user,id=net0,hostfwd=:127.0.0.1:3222-:22,hostname=qemu0 \
```
After boot, lspci should show the e1000e device enumerated at
0002:01:00.0:
```
root@ast2700-default:~# lspci
0002:00:00.0 PCI bridge: ASPEED Technology, Inc. AST1150 PCI-to-PCI Bridge
0002:01:00.0 Ethernet controller: Intel Corporation 82574L Gigabit Network
Connection
```
The e1000e driver should probe successfully, and a new Ethernet interface
should appear:
```
root@ast2700-default:~# ifconfig
eth2 Link encap:Ethernet HWaddr 52:54:00:12:34:56
inet addr:10.0.2.15 Bcast:10.0.2.255 Mask:255.255.255.0
inet6 addr: fe80::5054:ff:fe12:3456/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:21 errors:0 dropped:0 overruns:0 frame:0
TX packets:48 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:5388 (5.2 KiB) TX bytes:8244 (8.0 KiB)
Interrupt:42 Memory:a0040000-a0060000
```
Jamin Lin (14):
hw/pci/pci_ids Add PCI vendor ID for ASPEED
hw/pci-host/aspeed: Add AST2600 PCIe PHY model
hw/pci-host/aspeed: Add AST2600 PCIe config space and host bridge
hw/pci-host/aspeed: Add AST2600 PCIe Root Device support
hw/pci-host/aspeed: Add AST2600 PCIe Root Port and make address
configurable
hw/pci-host/aspeed: Add MSI support and per-RC IOMMU address space
hw/arm/aspeed: Wire up PCIe devices in SoC model
hw/arm/aspeed_ast2600: Add PCIe RC support (RC_H only)
hw/pci-host/aspeed: Add AST2700 PCIe PHY
hw/pci-host/aspeed: Add AST2700 PCIe config with dedicated H2X blocks
hw/pci-host/aspeed: Disable Root Device and place Root Port at 00:00.0
to AST2700
hw/arm/aspeed_ast27x0: Introduce 3 PCIe RCs for AST2700
tests/functional/arm/test_aspeed_ast2600: add PCIe enumeration test
tests/functional/aarch64/aspeed_ast2700: add PCIe enumeration test
include/hw/arm/aspeed_soc.h | 14 +
include/hw/pci-host/aspeed_pcie.h | 138 +++
include/hw/pci/pci_ids.h | 2 +
hw/arm/aspeed_ast2600.c | 69 +-
hw/arm/aspeed_ast27x0.c | 61 +
hw/pci-host/aspeed_pcie.c | 1014 +++++++++++++++++
hw/arm/Kconfig | 3 +
hw/pci-host/Kconfig | 4 +
hw/pci-host/meson.build | 1 +
hw/pci-host/trace-events | 11 +
.../functional/aarch64/test_aspeed_ast2700.py | 7 +
.../aarch64/test_aspeed_ast2700fc.py | 6 +
tests/functional/arm/test_aspeed_ast2600.py | 10 +
13 files changed, 1337 insertions(+), 3 deletions(-)
create mode 100644 include/hw/pci-host/aspeed_pcie.h
create mode 100644 hw/pci-host/aspeed_pcie.c
--
2.43.0
