u-boot.git/drivers/pci, branch v2024.01

Merge tag 'u-boot-rockchip-20231007' of https://source.denx.de/u-boot/custodians/u-boot-rockchip

2023-10-08T13:58:55Z

- Add Board: rk3568 Bananapi R2Pro; - Update pcie bifurcation support; - dwc_eth_qos controller support for rk3568 and rk3588; - Compressed binary support for U-Boot on rockchip platform; - dts and config updates for different board and soc; [ trini: Fix conflict on include/spl.h ] Signed-off-by: Tom Rini

pci: pcie_dw_rockchip: Configure number of lanes and link width speed

2023-10-07T02:23:12Z

Set number of lanes and link width speed control register based on the num-lanes property. Code imported almost 1:1 from dw_pcie_setup in mainline linux. Signed-off-by: Jonas Karlman Reviewed-by: Kever Yang

pci: serial: Support reading PCI-register size with base

2023-10-06T18:38:13Z

The PCI helpers read only the base address for a PCI region. In some cases the size is needed as well, e.g. to pass along to a driver which needs to know the size of its register area. Update the functions to allow the size to be returned. For serial, record the information and provided it with the serial_info() call. A limitation still exists in that the size is not available when OF_LIVE is enabled, so take account of that in the tests. Signed-off-by: Simon Glass

common: Drop linux/printk.h from common header

2023-09-24T13:54:57Z

This old patch was marked as deferred. Bring it back to life, to continue towards the removal of common.h Move this out of the common header and include it only where needed. Signed-off-by: Simon Glass

pci: pcie-brcmstb: do not rely on CLKREQ# signal

2023-08-30T15:47:43Z

When the Broadcom STB PCIe controller is initialized, it must be set into one of three CLKREQ# modes: "none"/"aspm"/"l1ss". The Linux driver, through today, hard-codes "aspm" since the vast majority of boards using this driver have a fixed PCIe bus with the CLKREQ# signal wired up. The Raspberry Pi CM4, however, can be connected to a plethora of PCIe devices, some of which do not connect the CLKREQ# line (they just leave it floating). So "aspm" mode is no longer appropriate in all cases. In Linux, there is a proposed patchset [1] to determine the proper mode. This doesn't really make sense in U-Boot's case, so we just change the assumption from "aspm" to "none" (which is always safe). This patch DOES resolve a real-world crash that occurs when U-Boot is running on a Raspberry Pi CM4 installed in slot 3 of a Turing Pi 2 cluster board. [1]: https://lore.kernel.org/all/20230428223500.23337-1-jim2101024@gmail.com/ Signed-off-by: Sam Edwards

pci: pcie-brcmstb: bring over some robustness improvements from Linux

2023-08-30T15:47:43Z

Since the initial U-Boot driver was ported here from Linux, the latter has had a few changes for robustness/stability. This patch brings over two of them: - Do not attempt to access the configuration space of a PCIe device if the link has gone down, as that will result in an asynchronous SError interrupt which will crash U-Boot. - Wait for the recommended 100ms after PERST# is deasserted. I sent this patch while debugging a crash involving PCIe, but these are unrelated improvements. I do not believe that this patch fixes any real-world bug. Signed-off-by: Sam Edwards

Merge tag 'v2023.10-rc3' into next

2023-08-21T21:32:17Z

Prepare v2023.10-rc3 Signed-off-by: Tom Rini

pci: ftpci100: add new driver implementation

2023-08-14T21:55:53Z

Add a new DM driver supporting FTPCI100 IP used in SoC designs. This implementation is not based on the old non-DM ftpci100 code dropped from U-Boot. Enable the driver in sandbox_defconfig to test compilability. Signed-off-by: Sergei Antonov

pci: Fix device_find_first_child() return value handling

2023-08-14T21:55:52Z

This function only ever returns 0, but may not assign the second parameter. Same thing for device_find_next_child(). Do not assign ret to stop proliferation of this misuse. Reported-by: Jonas Karlman Signed-off-by: Marek Vasut Reviewed-by: Simon Glass

pci: apple: Enable CONFIG_SYS_PCI_64BIT

2023-08-14T21:51:50Z

The Apple hardware supports 64-bit prefetchable memory windows so enable CONFIG_SYS_PCI_64BIT. This fixes BAR assignments for the Broadcom Ethernet controller used in some of the desktop machines. Signed-off-by: Mark Kettenis