Add some enhancements for i.MX95 PCIe. - Refine the link procedure to speed up link training. - Add two ERRATA SW workarounds. - To align PHY's power on sequency, add COLD reset. - Add PLL clock lock check. - Save/retore the LUT table in supend/resume callbacks. - 3/7 relies on "arm64: dts: imx95: Correct the range of PCIe app-reg region" https://lore.kernel.org/imx/20250314060104.390065-1-hongxing.zhu@xxxxxxx/ v6 changes: - Move the PLL clock lock check out of core_reset, and collect to a new callback function. - Update the commit message of 4/7. - Correct the typo errors in the commit messgage of 2/7 patch refer to Alok's comments. Thanks. - Add the dependecy of 3/7 into the cover letter refer to Alexander' comments. v5 changes: - Rebase to v6.15-rc1 - Update the commit message of "PCI: imx6: Skip one dw_pcie_wait_for_link() in" v4 changes: - Add another patch to skip one dw_pcie_wait_for_link() in the workaround link training refer to Mani' suggestion. - Rephrase the comments in "PCI: imx6: Toggle the cold reset for i.MX95 PCIe". - Correct the error return in "PCI: imx6: Add PLL clock lock check for i.MX95 PCIe". - Collect and add the Reviewd-by tags. v3 changes: - Correct the typo error in first patch, and update the commit message of #1 and #6 pathes. - Use a quirk flag to specify the errata workaround contained in post_init. v2 changes: - Correct typo error, and update commit message. - Replace regmap_update_bits() by regmap_set_bits/regmap_clear_bits. - Use post_init callback of dw_pcie_host_ops. - Add one more PLL lock check patch. - Reformat LUT save and restore functions. [PATCH RESEND v6 1/7] PCI: imx6: Start link directly when workaround [PATCH RESEND v6 2/7] PCI: imx6: Skip one dw_pcie_wait_for_link() in [PATCH RESEND v6 3/7] PCI: imx6: Toggle the cold reset for i.MX95 [PATCH RESEND v6 4/7] PCI: imx6: Workaround i.MX95 PCIe may not exit [PATCH RESEND v6 5/7] PCI: imx6: Let i.MX95 PCIe compliance with [PATCH RESEND v6 6/7] PCI: imx6: Add PLL clock lock check for i.MX95 [PATCH RESEND v6 7/7] PCI: imx6: Save and restore the LUT setting for drivers/pci/controller/dwc/pci-imx6.c | 213 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++----------------- 1 file changed, 182 insertions(+), 31 deletions(-)
