Hello, everyone: This is a small patchset intended to add PCI-subsystem bits necessary for enabling PCI support on i.MX7. This patchset is not self-sufficient and depends on three other patchsets: - Changes to anatop regulator driver - Chagnes to i.MX device tree code pertaining to anatop regulator - Changes to i.MX device tree pertaining to PCIe controller I submitted first two in [1] and [2], and, unless adwised otherwise, am planning on submitting the last one once [1], [2] and this patchset are accepted. This patch was tested against i210 card on i.MX7 Sabre board (connected via mini-PCIe to PCIe adapter) with general functionality and bandwidth tests. Note that this patchset have known "blemish" where Gen1 cards (at least) report this message: imx6q-pcie 33800000.pcie: Speed change timeout imx6q-pcie 33800000.pcie: Failed to bring link up! due to hardware not clearing PORT_LOGIC_SPEED_CHANGE bit after speed change is requested, but since this does not seem to affect the functioning of the link I am hoping this is not a deal breaker. I posted a question on NXP community web-site [3] hoping to get some additional info to help resolve the matter and if anyone has any suggestions I'd love to hear them. Thanks, Andrey Smirnov [1] https://www.spinics.net/lists/arm-kernel/msg553215.html [2] https://www.spinics.net/lists/kernel/msg2418471.html [3] https://community.nxp.com/message/867943 Andrey Smirnov (3): PCI: imx6: Fix a typo in error message PCI: imx6: Allow probe deferal by reset GPIO PCI: imx6: Add code to support i.MX7D .../devicetree/bindings/pci/fsl,imx6q-pcie.txt | 6 +- drivers/pci/host/pci-imx6.c | 197 ++++++++++++++++++--- include/linux/mfd/syscon/imx7-gpc.h | 18 ++ include/linux/mfd/syscon/imx7-iomuxc-gpr.h | 4 + include/linux/mfd/syscon/imx7-src.h | 18 ++ 5 files changed, 214 insertions(+), 29 deletions(-) create mode 100644 include/linux/mfd/syscon/imx7-gpc.h create mode 100644 include/linux/mfd/syscon/imx7-src.h -- 2.9.3 -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
