diff options
| author | Marek Vasut <marek.vasut+renesas@mailbox.org> | 2026-09-21 22:36:46 +0200 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2026-09-22 12:27:34 -0500 |
| commit | 056fd7eb017d73d9d175b733043edfbeb43569be (patch) | |
| tree | f6c1e24be6a6ac8a00505aec6b3a705c0854f13c /Documentation/PCI/controller | |
| parent | 3283c4db60093970509b4b11e0b8a18f342aafb5 (diff) | |
PCI: rcar-gen4: Drop documentation about obtaining platform firmware
Renesas R-Car V4H (r8a779g0) has a PCIe controller, and it requires
specific firmware downloading. The firmware is now available via
linux-firmware.git repository. So the existing documentation about
obtaining the firmware becomes obsolete. Hence, drop it.
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@oss.qualcomm.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Link: https://patch.msgid.link/20260921203716.73663-1-marek.vasut+renesas@mailbox.org
Diffstat (limited to 'Documentation/PCI/controller')
| -rw-r--r-- | Documentation/PCI/controller/index.rst | 1 | ||||
| -rw-r--r-- | Documentation/PCI/controller/rcar-pcie-firmware.rst | 32 |
2 files changed, 0 insertions, 33 deletions
diff --git a/Documentation/PCI/controller/index.rst b/Documentation/PCI/controller/index.rst index c15e2c9ac855..096d1c3d9807 100644 --- a/Documentation/PCI/controller/index.rst +++ b/Documentation/PCI/controller/index.rst @@ -8,4 +8,3 @@ PCI Native Host Bridge and Endpoint Drivers :maxdepth: 2 pci-controller-drivers - rcar-pcie-firmware diff --git a/Documentation/PCI/controller/rcar-pcie-firmware.rst b/Documentation/PCI/controller/rcar-pcie-firmware.rst deleted file mode 100644 index 67d3bf66e315..000000000000 --- a/Documentation/PCI/controller/rcar-pcie-firmware.rst +++ /dev/null @@ -1,32 +0,0 @@ -.. SPDX-License-Identifier: GPL-2.0 - -================================================= -Firmware of PCIe controller for Renesas R-Car V4H -================================================= - -Renesas R-Car V4H (r8a779g0) has a PCIe controller, requiring a specific -firmware download during startup. - -However, Renesas currently cannot distribute the firmware free of charge. - -The firmware file "104_PCIe_fw_addr_data_ver1.05.txt" (note that the file name -might be different between different datasheet revisions) can be found in the -datasheet encoded as text, and as such, the file's content must be converted -back to binary form. This can be achieved using the following example script: - -.. code-block:: sh - - $ awk '/^\s*0x[0-9A-Fa-f]{4}\s+0x[0-9A-Fa-f]{4}/ { print substr($2,5,2) substr($2,3,2) }' \ - 104_PCIe_fw_addr_data_ver1.05.txt | \ - xxd -p -r > rcar_gen4_pcie.bin - -Once the text content has been converted into a binary firmware file, verify -its checksum as follows: - -.. code-block:: sh - - $ sha1sum rcar_gen4_pcie.bin - 1d0bd4b189b4eb009f5d564b1f93a79112994945 rcar_gen4_pcie.bin - -The resulting binary file called "rcar_gen4_pcie.bin" should be placed in the -"/lib/firmware" directory before the driver runs. |