From: Dilip Kota <eswara.kota@linux.intel.com>
To: Jingoo Han <jingoohan1@gmail.com>,
"gustavo.pimentel@synopsys.com" <gustavo.pimentel@synopsys.com>,
"lorenzo.pieralisi@arm.com" <lorenzo.pieralisi@arm.com>,
"andrew.murray@arm.com" <andrew.murray@arm.com>,
"helgaas@kernel.org" <helgaas@kernel.org>,
"robh@kernel.org" <robh@kernel.org>,
"martin.blumenstingl@googlemail.com"
<martin.blumenstingl@googlemail.com>,
"linux-pci@vger.kernel.org" <linux-pci@vger.kernel.org>,
"devicetree@vger.kernel.org" <devicetree@vger.kernel.org>,
"andriy.shevchenko@intel.com" <andriy.shevchenko@intel.com>
Cc: "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"cheol.yong.kim@intel.com" <cheol.yong.kim@intel.com>,
"chuanhua.lei@linux.intel.com" <chuanhua.lei@linux.intel.com>,
"qi-ming.wu@intel.com" <qi-ming.wu@intel.com>
Subject: Re: [PATCH v7 2/3] dwc: PCI: intel: PCIe RC controller driver
Date: Mon, 18 Nov 2019 15:58:53 +0800 [thread overview]
Message-ID: <50dabbc6-eae5-5ae5-95a0-f195c1ef7362@linux.intel.com> (raw)
In-Reply-To: <SL2P216MB01056231B6036941BEF71738AA700@SL2P216MB0105.KORP216.PROD.OUTLOOK.COM>
On 11/16/2019 4:40 AM, Jingoo Han wrote:
> On 11/14/19, 9:31 PM, Dilip Kota wrote:
>
>> Add support to PCIe RC controller on Intel Gateway SoCs.
>> PCIe controller is based of Synopsys DesignWare PCIe core.
>>
>> Intel PCIe driver requires Upconfigure support, Fast Training
>> Sequence and link speed configurations. So adding the respective
>> helper functions in the PCIe DesignWare framework.
>> It also programs hardware autonomous speed during speed
>> configuration so defining it in pci_regs.h.
>>
>> Signed-off-by: Dilip Kota <eswara.kota@linux.intel.com>
>> Reviewed-by: Andrew Murray <andrew.murray@arm.com>
>> Acked-by: Gustavo Pimentel <gustavo.pimentel@synopsys.com>
>> ---
> [.....]
>
>> drivers/pci/controller/dwc/Kconfig | 10 +
>> drivers/pci/controller/dwc/Makefile | 1 +
>> drivers/pci/controller/dwc/pcie-designware.c | 57 +++
>> drivers/pci/controller/dwc/pcie-designware.h | 12 +
>> drivers/pci/controller/dwc/pcie-intel-gw.c | 542 +++++++++++++++++++++++++++
>> include/uapi/linux/pci_regs.h | 1 +
>> 6 files changed, 623 insertions(+)
>> create mode 100644 drivers/pci/controller/dwc/pcie-intel-gw.c
>>
>> diff --git a/drivers/pci/controller/dwc/Kconfig b/drivers/pci/controller/dwc/Kconfig
>> index 0ba988b5b5bc..fb6d474477df 100644
>> --- a/drivers/pci/controller/dwc/Kconfig
>> +++ b/drivers/pci/controller/dwc/Kconfig
>> @@ -82,6 +82,16 @@ config PCIE_DW_PLAT_EP
>> order to enable device-specific features PCI_DW_PLAT_EP must be
>> selected.
>>
>> +config PCIE_INTEL_GW
>> + bool "Intel Gateway PCIe host controller support"
>> + depends on OF && (X86 || COMPILE_TEST)
>> + select PCIE_DW_HOST
>> + help
>> + Say 'Y' here to enable PCIe Host controller support on Intel
>> + Gateway SoCs.
>> + The PCIe controller uses the DesignWare core plus Intel-specific
>> + hardware wrappers.
>> +
> Please add this config alphabetical order!
> So, this config should be after 'config PCI_IMX6'.
> There is no reason to put this config at the first place.
>
>> config PCI_EXYNOS
>> bool "Samsung Exynos PCIe controller"
>> depends on SOC_EXYNOS5440 || COMPILE_TEST
>> diff --git a/drivers/pci/controller/dwc/Makefile b/drivers/pci/controller/dwc/Makefile
>> index b30336181d46..99db83cd2f35 100644
>> --- a/drivers/pci/controller/dwc/Makefile
>> +++ b/drivers/pci/controller/dwc/Makefile
>> @@ -3,6 +3,7 @@ obj-$(CONFIG_PCIE_DW) += pcie-designware.o
>> obj-$(CONFIG_PCIE_DW_HOST) += pcie-designware-host.o
>> obj-$(CONFIG_PCIE_DW_EP) += pcie-designware-ep.o
>> obj-$(CONFIG_PCIE_DW_PLAT) += pcie-designware-plat.o
>> +obj-$(CONFIG_PCIE_INTEL_GW) += pcie-intel-gw.o
> Ditto.
PCIE_INTEL_GW wouldnt come after PCI_IMX6, the complete Makefile and
Kconfig are not in order,( PCI_* and PCIE_* are not in any order). So i
just followed PCIE_DW and placed PCIE_INTEL_GW after PCIE_DW as I is
after D (and i see PCI_* immediately after the PCIE_DW*, so i placed
PCIE_INTEL_GW after PCIE_DW* and before PCI_*).
Regards,
Dilip
>
> Best regards,
> Jingoo Han
>
>> obj-$(CONFIG_PCI_DRA7XX) += pci-dra7xx.o
>> obj-$(CONFIG_PCI_EXYNOS) += pci-exynos.o
>> obj-$(CONFIG_PCI_IMX6) += pci-imx6.o
>> diff --git a/drivers/pci/controller/dwc/pcie-designware.c b/drivers/pci/controller/dwc/pcie-designware.c
>> index 820488dfeaed..479e250695a0 100644
> [.....]
next prev parent reply other threads:[~2019-11-18 7:59 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-11-15 2:30 [PATCH v7 0/3] PCI: Add Intel PCIe Driver and respective dt-binding yaml file Dilip Kota
2019-11-15 2:30 ` [PATCH v7 1/3] dt-bindings: PCI: intel: Add YAML schemas for the PCIe RC controller Dilip Kota
2019-11-15 2:30 ` [PATCH v7 2/3] dwc: PCI: intel: PCIe RC controller driver Dilip Kota
2019-11-15 10:19 ` Andy Shevchenko
2019-11-18 8:24 ` Dilip Kota
2019-11-15 20:40 ` Jingoo Han
2019-11-18 7:58 ` Dilip Kota [this message]
2019-11-18 16:40 ` Jingoo Han
2019-11-19 1:26 ` Dilip Kota
2019-11-19 2:33 ` Jingoo Han
2019-11-19 3:15 ` Dilip Kota
2019-11-19 3:54 ` Jingoo Han
2019-11-19 9:19 ` Dilip Kota
2019-11-15 2:30 ` [PATCH v7 3/3] PCI: artpec6: Configure FTS with dwc helper function Dilip Kota
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