| From: |
| <honghui.zhang-AT-mediatek.com> |
| To: |
| <bhelgaas-AT-google.com>, <robh-AT-kerenl.org>, <robh+dt-AT-kernel.org>, <matthias.bgg-AT-gmail.com>, <linux-arm-kernel-AT-lists.infradead.org>, <linux-mediatek-AT-lists.infradead.org>, <linux-pci-AT-vger.kernel.org>, <linux-kernel-AT-vger.kernel.org>, <devicetree-AT-vger.kernel.org>, <yingjoe.chen-AT-mediatek.com>, <eddie.huang-AT-mediatek.com>, <ryder.lee-AT-mediatek.com> |
| Subject: |
| [PATCH v3 0/6] PCI: MediaTek: Add support for new generation host controller |
| Date: |
| Fri, 4 Aug 2017 20:06:36 +0800 |
| Message-ID: |
| <cover.1501846816.git.honghui.zhang@mediatek.com> |
| Cc: |
| <honghui.zhang-AT-mediatek.com>, <hongkun.cao-AT-mediatek.com>, <youlin.pei-AT-mediatek.com>, <yong.wu-AT-mediatek.com>, <yt.shen-AT-mediatek.com>, <sean.wang-AT-mediatek.com>, <xinping.qian-AT-mediatek.com> |
From: Honghui Zhang <honghui.zhang@mediatek.com>
MediaTek's PCIe host controller has two generation HWs, the new
generation HW has two root ports, it shares most probing flow with the
legacy controller. But the read/write config space logical is different
from the legacy controller. The per-port register must be touched for
read/write config space, And the per-port register base are in separate
address space.
This patchset abstract the common probing flow, and add support for the
new generation controller.
Changes since v2:
- Split the Gen2 training change to a separate patch.
- Simplify the config_read/write logical and get rid of mtk_pcie_find_port.
- Using bus->sysdata to simplify the code.
- Rebase to commit 65b83b13204a ("PCI: mediatek: Explicitly request exclusive
reset control")[1].
- Fix some misspells.
- Add review tags in commit message.
Changes since v1:
- Fix build warnings in arm arch.
- Using SoC specific compatible instead of generic compatible.
- Add devicetree binding example for mt7622.
- Unified the register define names with PCIE_ prefix.
- Cleanup some un-necessary condition determine when starup port.
- minor code cleanups.
[1] https://patchwork.kernel.org/patch/9852591/
Honghui Zhang (1):
PCI: mediatek: Add a structure to abstract the controller generations
Ryder Lee (5):
PCI: mediatek: Using readl_poll_timeout to wait Gen2 training
PCI: mediatek: switch to use platform_get_resource_byname()
dt-bindings: PCI: rename and cleanup MediaTek binding text
PCI: mediatek: Add new generation controller support
dt-bindings: PCI: add support for new generation controller
.../bindings/pci/mediatek,mt7623-pcie.txt | 130 -----
.../devicetree/bindings/pci/mediatek-pcie.txt | 284 ++++++++++
drivers/pci/host/Kconfig | 5 +-
drivers/pci/host/pcie-mediatek.c | 571 +++++++++++++++++++--
4 files changed, 812 insertions(+), 178 deletions(-)
delete mode 100644 Documentation/devicetree/bindings/pci/mediatek,mt7623-pcie.txt
create mode 100644 Documentation/devicetree/bindings/pci/mediatek-pcie.txt
--
2.6.4
