PCIe: Update documentation and platform support#636
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AkshGarg-19 wants to merge 6 commits intoTexasInstruments:masterfrom
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PCIe: Update documentation and platform support#636AkshGarg-19 wants to merge 6 commits intoTexasInstruments:masterfrom
AkshGarg-19 wants to merge 6 commits intoTexasInstruments:masterfrom
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AkshGarg-19
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cshilwant
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is this PR intended for SDK 12.x / SDK 11.x / both?
source/linux/Foundational_Components/Kernel/Kernel_Drivers/PCIe/PCIe_Backplane.rst
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source/linux/Foundational_Components/Kernel/Kernel_Drivers/PCIe/PCIe_Backplane.rst
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source/linux/Foundational_Components/Kernel/Kernel_Drivers/PCIe/PCIe_Root_Complex.rst
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source/linux/Foundational_Components/Kernel/Kernel_Drivers/PCIe/PCIe_Root_Complex.rst
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@cshilwant For SDK 12.x |
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@cshilwant The PR has been updated with the requested changes |
StaticRocket
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Apr 7, 2026
source/linux/Foundational_Components/Kernel/Kernel_Drivers/PCIe/PCIe_Backplane.rst
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The SK-AM68 EVM does not have PCIe card slots, therefore PCIe Endpoint and Backplane functionality cannot be used on this platform. Signed-off-by: Aksh Garg <a-garg7@ti.com>
The SK-AM69 EVM has only one PCIe card slot, whereas the PCIe backplane functionality requires at least two PCIe endpoints. Therefore, PCIe backplane functionality cannot be used on this platform. Signed-off-by: Aksh Garg <a-garg7@ti.com>
The J721S2 EVM has only one functional PCIe slot (PCIe1), the second PCIe connector is unused. The PCIe backplane functionality requires at least two PCIe endpoints. Therefore, PCIe backplane cannot be used on this platform. Signed-off-by: Aksh Garg <a-garg7@ti.com>
The SK-TDA4VM EVM does not have PCIe card slots, therefore PCIe endpoint and backplane functionality cannot be used on this platform. Signed-off-by: Aksh Garg <a-garg7@ti.com>
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| 2. 1 MB IO region | ||
| 3. Remaining region (4 GB - 1 MB - 4 KB) as 32-bit Non-Prefetchable MEM | ||
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| .. note:: |
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I meant this entire block needed updating. There are multiple indentation depths in use here that don't seem to be intentional. Still applicable.
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I mistakenly didn't look at the indentation changes which were required for the lines other than the lines I added in the commit.
Improve the PCIe backplane documentation to accommodate information for all the supported SoCs (J721E, J784S4, J742S2). Update the DTB overlay file used to test the backplane functionality. Signed-off-by: Aksh Garg <a-garg7@ti.com>
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Add a note to the PCIe Root Complex documentation about using 'pci=realloc' bootargs parameter when the root complex is connected to an endpoint with Virtual Functions and kernel panics during enumeration. This parameter instructs the Linux kernel to reallocate PCI bridge resources, helping to resolve conflicts during PCIe device enumeration. Signed-off-by: Aksh Garg <a-garg7@ti.com>
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Update PCIe Backplane documentation to support J721E, J784S4, and J742S2 SoCs while removing unsupported platforms.