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path: root/drivers/pci/pcie_ecam_generic.c
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2020-03-30pci-host-ecam-generic: access config space independent of system-wide bus idVladimir Oltean
The pci-host-ecam-generic code assumes that the ECAM is the first PCI bus in the system to be probed. Therefore, the system-wide bus number allocated by U-Boot in sequence for it is going to be zero, which corresponds to the memory-mapped config spaces found within it. Reuse the logic from other PCI bus drivers, and assume that U-Boot will allocate bus numbers in sequence for all buses within the current ECAM. So the base number of the bus needs to be subtracted when indexing the correct config space. Fixes: 3675cb044e68 ("PCI: Add driver for a 'pci-host-ecam-generic' host controller") Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com> Reviewed-by: Alex Marginean <alexandru.marginean@nxp.com> Signed-off-by: Priyanka Jain <priyanka.jain@nxp.com>
2020-02-05dm: pci: Update the PCI read_config() method to const dev *Simon Glass
At present this method uses a non-const udevice pointer, but the call should not modify the device. Use a const pointer. Signed-off-by: Simon Glass <sjg@chromium.org>
2018-05-07SPDX: Convert all of our single license tags to Linux Kernel styleTom Rini
When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
2017-10-06PCI: Add driver for a 'pci-host-ecam-generic' host controllerTuomas Tynkkynen
QEMU emulates such a device with '-machine virt,highmem=off' on ARM. The 'highmem=off' part is required for things to work as the PCI code in U-Boot doesn't seem to support 64-bit BARs. Signed-off-by: Tuomas Tynkkynen <tuomas.tynkkynen@iki.fi> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>