From: Kishon Vijay Abraham I <kishon@ti.com>
To: Rob Herring <robh@kernel.org>
Cc: Bjorn Helgaas <bhelgaas@google.com>,
Joao Pinto <Joao.Pinto@synopsys.com>, <linux-pci@vger.kernel.org>,
<linux-doc@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
<devicetree@vger.kernel.org>, <linux-omap@vger.kernel.org>,
<linux-arm-kernel@lists.infradead.org>, <hch@infradead.org>,
<nsekhar@ti.com>
Subject: Re: [PATCH v4 15/23] dt-bindings: PCI: dra7xx: Add dt bindings to enable unaligned access
Date: Wed, 22 Mar 2017 20:07:18 +0530 [thread overview]
Message-ID: <a3b44129-38b5-fb19-c931-108079b0c382@ti.com> (raw)
In-Reply-To: <20170320214316.yah5cvfdabiceywf@rob-hp-laptop>
Hi Rob,
On Tuesday 21 March 2017 03:13 AM, Rob Herring wrote:
> On Mon, Mar 13, 2017 at 07:52:51PM +0530, Kishon Vijay Abraham I wrote:
>> Update device tree binding documentation of TI's dra7xx PCI
>> controller to include property for enabling unaligned mem access.
>>
>> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
>> ---
>> Documentation/devicetree/bindings/pci/ti-pci.txt | 5 +++++
>> 1 file changed, 5 insertions(+)
>>
>> diff --git a/Documentation/devicetree/bindings/pci/ti-pci.txt b/Documentation/devicetree/bindings/pci/ti-pci.txt
>> index 190828a5f32a..b69dd7dbd29e 100644
>> --- a/Documentation/devicetree/bindings/pci/ti-pci.txt
>> +++ b/Documentation/devicetree/bindings/pci/ti-pci.txt
>> @@ -39,6 +39,11 @@ DEVICE MODE
>> - interrupts : one interrupt entries must be specified for main interrupt.
>> - num-ib-windows : number of inbound address translation windows
>> - num-ob-windows : number of outbound address translation windows
>> + - ti,syscon-unaligned-access: phandle to the syscon dt node. The 1st argument
>> + should contain the register offset within syscon
>> + and the 2nd argument should contain the bit field
>> + for setting the bit to enable unaligned
>> + access.
>
> This should be setup by the firmware/bootloader or some platform code.
> Why does the PCI host need to configure this?
That would create a dependency between the bootloader and kernel which is
usually avoided in platforms like dra7xx.
Thanks
Kishon
next prev parent reply other threads:[~2017-03-22 14:38 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-03-13 14:22 [GIT PULL 00/23] PCI: Support for configurable PCI endpoint Kishon Vijay Abraham I
2017-03-13 14:22 ` [PATCH v4 01/23] PCI: endpoint: Add EP core layer to enable EP controller and EP functions Kishon Vijay Abraham I
2017-03-13 14:22 ` [PATCH v4 02/23] Documentation: PCI: Guide to use PCI Endpoint Core Layer Kishon Vijay Abraham I
2017-03-13 14:22 ` [PATCH v4 03/23] PCI: endpoint: Introduce configfs entry for configuring EP functions Kishon Vijay Abraham I
2017-03-13 14:22 ` [PATCH v4 04/23] Documentation: PCI: Guide to use pci endpoint configfs Kishon Vijay Abraham I
2017-03-13 14:22 ` [PATCH v4 05/23] PCI: endpoint: Create configfs entry for EPC device and EPF driver Kishon Vijay Abraham I
2017-03-13 14:22 ` [PATCH v4 06/23] Documentation: PCI: Add specification for the *pci test* function device Kishon Vijay Abraham I
2017-03-13 14:22 ` [PATCH v4 07/23] PCI: endpoint: functions: Add an EP function to test PCI Kishon Vijay Abraham I
2017-03-13 14:22 ` [PATCH v4 08/23] Documentation: PCI: Add binding documentation for pci-test endpoint function Kishon Vijay Abraham I
2017-03-13 14:22 ` [PATCH v4 09/23] PCI: dwc: designware: Add EP mode support Kishon Vijay Abraham I
2017-03-13 14:22 ` [PATCH v4 10/23] dt-bindings: PCI: Add dt bindings for pci designware EP mode Kishon Vijay Abraham I
2017-03-13 14:22 ` [PATCH v4 11/23] PCI: dwc: dra7xx: Facilitate wrapper and msi interrupts to be enabled independently Kishon Vijay Abraham I
2017-03-13 14:22 ` [PATCH v4 12/23] PCI: dwc: dra7xx: Add EP mode support Kishon Vijay Abraham I
2017-03-13 14:22 ` [PATCH v4 13/23] dt-bindings: PCI: dra7xx: Add dt bindings for pci dra7xx EP mode Kishon Vijay Abraham I
2017-03-13 14:22 ` [PATCH v4 14/23] PCI: dwc: dra7xx: Workaround for errata id i870 Kishon Vijay Abraham I
2017-03-20 21:48 ` Rob Herring
2017-03-22 14:39 ` Kishon Vijay Abraham I
2017-03-13 14:22 ` [PATCH v4 15/23] dt-bindings: PCI: dra7xx: Add dt bindings to enable unaligned access Kishon Vijay Abraham I
2017-03-20 21:43 ` Rob Herring
2017-03-22 14:37 ` Kishon Vijay Abraham I [this message]
2017-03-13 14:22 ` [PATCH v4 16/23] PCI: Add device IDs for DRA74x and DRA72x Kishon Vijay Abraham I
2017-03-13 14:22 ` [PATCH v4 17/23] misc: Add host side pci driver for pci test function device Kishon Vijay Abraham I
2017-03-13 14:22 ` [PATCH v4 18/23] Documentation: misc-devices: Add Documentation for pci-endpoint-test driver Kishon Vijay Abraham I
2017-03-13 14:22 ` [PATCH v4 19/23] tools: PCI: Add a userspace tool to test PCI endpoint Kishon Vijay Abraham I
2017-03-13 14:22 ` [PATCH v4 20/23] tools: PCI: Add sample test script to invoke pcitest Kishon Vijay Abraham I
2017-03-13 14:22 ` [PATCH v4 21/23] Documentation: PCI: Add userguide for PCI endpoint test function Kishon Vijay Abraham I
2017-03-13 14:22 ` [PATCH v4 22/23] MAINTAINERS: add PCI EP maintainer Kishon Vijay Abraham I
2017-03-13 14:22 ` [PATCH v4 23/23] ARM: DRA7: clockdomain: Change the CLKTRCTRL of CM_PCIE_CLKSTCTRL to SW_WKUP Kishon Vijay Abraham I
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