u-boot.git/drivers/pci, branch v2024.04

drivers: pci: Fix dm_pci_map_bar() to support 64b BARs

2024-01-19T01:24:13Z

This enables 64b BARs if CONFIG_SYS_PCI_64BIT is enabled. Reviewed-by: Philip Oberfichtner Reviewed-by: Simon Glass Signed-off-by: Moritz Fischer

global: Drop common.h inclusion

2023-12-21T13:54:37Z

In order to make it easier to move on to dropping common.h from code directly, remove common.h inclusion from the rest of the header file which had been including it. Reviewed-by: Simon Glass Signed-off-by: Tom Rini

pci: xilinx: Enable MMIO region

2023-12-13T07:58:06Z

The host bridge MMIO region is disabled by default due to which MMIO accesses cause an exception. Fix it by setting the bridge enable bit. This change is ported from the linux pcie-xilinx driver. Signed-off-by: Mayuresh Chitale Reviewed-by: Michal Simek Link: https://lore.kernel.org/r/20231116165103.140968-3-mchitale@ventanamicro.com Signed-off-by: Michal Simek

pci: xilinx: Fix "reg" not found error

2023-12-13T07:58:06Z

Fix the driver to use the dev_read_addr_size API to fetch the reg property from the DT. Signed-off-by: Mayuresh Chitale Link: https://lore.kernel.org/r/20231116165103.140968-2-mchitale@ventanamicro.com Signed-off-by: Michal Simek

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