From: Kishon Vijay Abraham I <kishon@ti.com>
To: Joao Pinto <Joao.Pinto@synopsys.com>,
Bjorn Helgaas <bhelgaas@google.com>,
Jingoo Han <jingoohan1@gmail.com>
Cc: devicetree@vger.kernel.org, linux-doc@vger.kernel.org,
linux-pci@vger.kernel.org, nsekhar@ti.com,
linux-kernel@vger.kernel.org, linux-omap@vger.kernel.org,
linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH v2 08/22] PCI: dwc: designware: Add EP mode support
Date: Tue, 7 Mar 2017 10:48:42 +0530 [thread overview]
Message-ID: <58BE42B2.20305@ti.com> (raw)
In-Reply-To: <45e5288e-d11f-c855-af9b-692a42d878c6@synopsys.com>
Hi Joao,
On Friday 17 February 2017 10:50 PM, Joao Pinto wrote:
> =C0s 9:50 AM de 2/17/2017, Kishon Vijay Abraham I escreveu:
>> Add endpoint mode support to designware driver. This uses the
>> EP Core layer introduced recently to add endpoint mode support.
>> *Any* function driver can now use this designware device
>> in order to achieve the EP functionality.
>>
>> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
>> ---
>> drivers/pci/dwc/Kconfig | 5 +
>> drivers/pci/dwc/Makefile | 1 +
>> drivers/pci/dwc/pcie-designware-ep.c | 342 +++++++++++++++++++++++++++=
+++++++
>> drivers/pci/dwc/pcie-designware.c | 51 +++++
>> drivers/pci/dwc/pcie-designware.h | 72 +++++++
>> 5 files changed, 471 insertions(+)
>> create mode 100644 drivers/pci/dwc/pcie-designware-ep.c
>>
<snip>
>> diff --git a/drivers/pci/dwc/pcie-designware.c b/drivers/pci/dwc/pcie-de=
signware.c
>> index 686945d..49b28c8 100644
>> --- a/drivers/pci/dwc/pcie-designware.c
>> +++ b/drivers/pci/dwc/pcie-designware.c
>> @@ -173,6 +173,57 @@ void dw_pcie_prog_outbound_atu(struct dw_pcie *pci,=
int index, int type,
>> dev_err(pci->dev, "iATU is not being enabled\n");
>> }
>> =
>> +int dw_pcie_prog_inbound_atu(struct dw_pcie *pci, int index, int bar,
>> + u64 cpu_addr, enum dw_pcie_as_type as_type)
>> +{
>> + int type;
>> + void __iomem *base =3D pci->dbi_base;
>> +
>> + dw_pcie_write_dbi(pci, base, PCIE_ATU_VIEWPORT, 0x4,
>> + PCIE_ATU_REGION_INBOUND | index);
>> + dw_pcie_write_dbi(pci, base, PCIE_ATU_LOWER_TARGET, 0x4,
>> + lower_32_bits(cpu_addr));
>> + dw_pcie_write_dbi(pci, base, PCIE_ATU_UPPER_TARGET, 0x4,
>> + upper_32_bits(cpu_addr));
>> +
>> + switch (as_type) {
>> + case DW_PCIE_AS_MEM:
>> + type =3D PCIE_ATU_TYPE_MEM;
>> + break;
>> + case DW_PCIE_AS_IO:
>> + type =3D PCIE_ATU_TYPE_IO;
>> + break;
>> + default:
>> + return -EINVAL;
>> + }
>> +
>> + dw_pcie_write_dbi(pci, base, PCIE_ATU_CR1, 0x4, type);
>> + dw_pcie_write_dbi(pci, base, PCIE_ATU_CR2, 0x4, PCIE_ATU_ENABLE |
>> + PCIE_ATU_BAR_MODE_ENABLE | (bar << 8));
>> + return 0;
>> +}
>> +
> =
> This Atu programming is for PCI Cores <=3D 4.70. Please follow the same a=
pproach as:
> https://git.kernel.org/cgit/linux/kernel/git/helgaas/pci.git/tree/drivers=
/pci/dwc/pcie-designware.c?h=3Dpci/host-designware#n95
Can you provide PCIE_GET_ATU_INB_UNR_REG_OFFSET (similar to
PCIE_GET_ATU_OUTB_UNR_REG_OFFSET)?
Thanks
Kishon
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next prev parent reply other threads:[~2017-03-07 5:18 UTC|newest]
Thread overview: 49+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-02-17 9:50 [PATCH v2 00/22] PCI: Support for configurable PCI endpoint Kishon Vijay Abraham I
2017-02-17 9:50 ` [PATCH v2 01/22] PCI: endpoint: Add EP core layer to enable EP controller and EP functions Kishon Vijay Abraham I
2017-02-17 11:26 ` Joao Pinto
2017-02-17 11:37 ` Kishon Vijay Abraham I
2017-02-17 11:39 ` Joao Pinto
2017-02-17 9:50 ` [PATCH v2 02/22] Documentation: PCI: Guide to use PCI Endpoint Core Layer Kishon Vijay Abraham I
2017-02-17 11:43 ` Joao Pinto
2017-02-17 9:50 ` [PATCH v2 03/22] PCI: endpoint: Introduce configfs entry for configuring EP functions Kishon Vijay Abraham I
2017-02-17 12:01 ` Kishon Vijay Abraham I
2017-02-17 17:04 ` Christoph Hellwig
2017-03-06 9:41 ` Kishon Vijay Abraham I
2017-02-17 9:50 ` [PATCH v2 04/22] Documentation: PCI: Guide to use pci endpoint configfs Kishon Vijay Abraham I
2017-02-17 13:05 ` Joao Pinto
2017-02-17 17:15 ` Christoph Hellwig
2017-03-06 10:16 ` Kishon Vijay Abraham I
2017-02-17 9:50 ` [PATCH v2 05/22] Documentation: PCI: Add specification for the *pci test* function device Kishon Vijay Abraham I
2017-02-17 9:50 ` [PATCH v2 06/22] PCI: endpoint: functions: Add an EP function to test PCI Kishon Vijay Abraham I
2017-02-17 9:50 ` [PATCH v2 07/22] Documentation: PCI: Add binding documentation for pci-test endpoint function Kishon Vijay Abraham I
2017-02-17 9:50 ` [PATCH v2 08/22] PCI: dwc: designware: Add EP mode support Kishon Vijay Abraham I
2017-02-17 13:15 ` Kishon Vijay Abraham I
2017-02-17 17:20 ` Joao Pinto
2017-03-06 9:55 ` Kishon Vijay Abraham I
2017-03-07 5:18 ` Kishon Vijay Abraham I [this message]
2017-03-07 11:10 ` Joao Pinto
2017-03-08 11:32 ` Joao Pinto
2017-03-08 11:35 ` Kishon Vijay Abraham I
2017-03-08 11:37 ` Joao Pinto
2017-03-08 13:31 ` Kishon Vijay Abraham I
2017-03-08 15:32 ` Joao Pinto
2017-03-08 15:33 ` Joao Pinto
2017-03-08 19:14 ` Christoph Hellwig
2017-03-09 11:55 ` Joao Pinto
2017-02-17 9:50 ` [PATCH v2 09/22] dt-bindings: PCI: Add dt bindings for pci designware EP mode Kishon Vijay Abraham I
2017-02-17 9:50 ` [PATCH v2 10/22] PCI: dwc: dra7xx: Facilitate wrapper and msi interrupts to be enabled independently Kishon Vijay Abraham I
2017-02-17 9:50 ` [PATCH v2 11/22] PCI: dwc: dra7xx: Add EP mode support Kishon Vijay Abraham I
2017-02-17 9:50 ` [PATCH v2 12/22] dt-bindings: PCI: dra7xx: Add dt bindings for pci dra7xx EP mode Kishon Vijay Abraham I
2017-02-17 9:50 ` [PATCH v2 13/22] PCI: dwc: dra7xx: Workaround for errata id i870 Kishon Vijay Abraham I
2017-02-17 9:50 ` [PATCH v2 14/22] dt-bindings: PCI: dra7xx: Add dt bindings to enable legacy mode Kishon Vijay Abraham I
2017-02-27 16:40 ` Rob Herring
2017-02-28 3:28 ` Kishon Vijay Abraham I
2017-03-06 9:56 ` Kishon Vijay Abraham I
2017-02-17 9:50 ` [PATCH v2 15/22] PCI: Add device IDs for DRA74x and DRA72x Kishon Vijay Abraham I
2017-02-17 9:50 ` [PATCH v2 16/22] misc: Add host side pci driver for pci test function device Kishon Vijay Abraham I
2017-02-17 9:50 ` [PATCH v2 17/22] Documentation: misc-devices: Add Documentation for pci-endpoint-test driver Kishon Vijay Abraham I
2017-02-17 9:50 ` [PATCH v2 18/22] tools: PCI: Add a userspace tool to test PCI endpoint Kishon Vijay Abraham I
2017-02-17 9:50 ` [PATCH v2 19/22] tools: PCI: Add sample test script to invoke pcitest Kishon Vijay Abraham I
2017-02-17 9:50 ` [PATCH v2 20/22] Documentation: PCI: Add userguide for PCI endpoint test function Kishon Vijay Abraham I
2017-02-17 9:50 ` [PATCH v2 21/22] MAINTAINERS: add PCI EP maintainer Kishon Vijay Abraham I
2017-02-17 9:50 ` [PATCH v2 22/22] ARM: DRA7: clockdomain: Change the CLKTRCTRL of CM_PCIE_CLKSTCTRL to SW_WKUP Kishon Vijay Abraham I
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