This patchset needs to apply after patchset in [1]. These PCIe series patches are based on the JH7110 RISC-V SoC and VisionFive V2 board.
[1] https://patchwork.ozlabs.org/project/uboot/cover/20230329034224.26545-1-yanh...
The PCIe driver depends on gpio, pinctrl, clk and reset driver to do init. The PCIe dts configuation includes all these setting.
The PCIe drivers codes has been tested on the VisionFive V2 boards. The test devices includes M.2 NVMe SSD and Realtek 8169 Ethernet adapter.
previous patch version
v1: https://patchwork.ozlabs.org/project/uboot/cover/20230223105240.15180-1-mind... v2: https://patchwork.ozlabs.org/project/uboot/cover/20230308054833.95730-1-mind...
changes v2 1. remove clock commit. The pcie clocks change has been includeded in [1]. 2. Using GENMASK marco1 in patch1. 3. remove the syscon dts node in patch3. The syscon dts dts node has been included in [1].
v3 patch 1 1. remove the read vendor ID delay 2. remove starfive_pcie_hide_rc_bar function. do not hide host bridge BAR write. 3. Using PCIE_ECAM_OFFSET and PCI_CLASS_BRIDGE_PCI_NORMAL macros. 4. Add comments for bus and address limitation reason in function starfive_pcie_addr_valid 5. Change the multiple line comments in Line 373 6. Using gpio_request_by_name to get PCIe reset gpio,and using dm_gpio_set_value set GPIO value. patch 2 1. support PCIeboth 12a and 13b vf2 board. patch 3 1. reset dts change to reset-gpio.
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The JH7110 minimal system patchset upstream is in progress. PCIe driver patches is based on this patchset.
The JH7110 minimal system patchset details are listed in [1].
For more JH7110 and visionFive v2 information and support, you can visit RVspace wiki[2].
Mason Huo (3): starfive: pci: Add StarFive JH7110 pcie driver configs: starfive-jh7110: Add support for PCIe host driver riscv: dts: starfive: Enable PCIe host controller
.../dts/jh7110-starfive-visionfive-2.dtsi | 11 + arch/riscv/dts/jh7110.dtsi | 74 +++ configs/starfive_visionfive2_12a_defconfig | 9 + configs/starfive_visionfive2_13b_defconfig | 9 + drivers/pci/Kconfig | 11 + drivers/pci/Makefile | 1 + drivers/pci/pcie_starfive_jh7110.c | 463 ++++++++++++++++++ 7 files changed, 578 insertions(+) create mode 100644 drivers/pci/pcie_starfive_jh7110.c
base-commit: 41a88ad529b3943b1e465846eb24fe2c29203e35 prerequisite-patch-id: a84452ba131408ff842b65ae19a3a05f64b3ff60 prerequisite-patch-id: 4abb46d56dbaf36017b2866688f31a73c2cacd0d prerequisite-patch-id: ef5e9d61f7392c7d2e5321aa8a10996ca8eae5fc prerequisite-patch-id: 26dfdb401d680ecd9449acf09131cf4790e987b7 prerequisite-patch-id: a0cfa5d8cdb49bbe9d4739afa90991f882950881 prerequisite-patch-id: 61ceecb41cfd9029bfb267f7b7c5330a2d7e5edc prerequisite-patch-id: d834ece14ffb525b8c3e661e78736692f33fca9b prerequisite-patch-id: 88c9f9637335fdc4107d42db67b9110c9b73ead3 prerequisite-patch-id: ebc26ed3f97f7babc0fc805152acb578f5eff922 prerequisite-patch-id: e85a9ca22facac4d5b5562a2708b7332478d6db4 prerequisite-patch-id: ff5bd799e4cb905fef6cf1cd0ce757980e1d34b7 prerequisite-patch-id: a341d4e8a8e25cb711309123939235fcb3c10c1a prerequisite-patch-id: 749e4eafb431857ee2bec4ac8e78a682f6a57588 prerequisite-patch-id: d4a3666ce2e7135402537cea60e9e6f0435230bf prerequisite-patch-id: fa8ad1bfce7d6ab74ad63ff8d31dff3c2ccb5e43 prerequisite-patch-id: cc352634b8dfaf2d4243819362326a579e010c94 prerequisite-patch-id: 8e0fa3d987020ca06e22401bc4c69f834c38c3dc