From: Mark Brown <broonie@kernel.org>
To: Parshuram Raju Thombare <pthombar@cadence.com>
Cc: "lukas@wunner.de" <lukas@wunner.de>,
"p.yadav@ti.com" <p.yadav@ti.com>,
"robh+dt@kernel.org" <robh+dt@kernel.org>,
"linux-spi@vger.kernel.org" <linux-spi@vger.kernel.org>,
"devicetree@vger.kernel.org" <devicetree@vger.kernel.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
Jayshri Dajiram Pawar <jpawar@cadence.com>,
Milind Parab <mparab@cadence.com>,
Konrad Kociolek <konrad@cadence.com>
Subject: Re: [PATCH v3 2/2] spi: cadence: add support for Cadence XSPI controller
Date: Fri, 3 Sep 2021 12:24:03 +0100 [thread overview]
Message-ID: <20210903112403.GF4932@sirena.org.uk> (raw)
In-Reply-To: <CY4PR07MB27579742A452BC2E71D9A946C1CF9@CY4PR07MB2757.namprd07.prod.outlook.com>
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On Fri, Sep 03, 2021 at 10:47:50AM +0000, Parshuram Raju Thombare wrote:
> Oh, ok. That is done at power on reset by the controller in 2 ways.
> 1. Using device discovery module, controller try to auto detect the valid protocol
> mode by trying to read SFDP signature in various modes.
> 2. Particular protocol mode can be selected using bootstrap signals.
> I think mode_bits need to include protocol mode which is auto detected or
> set using bootstrap signals. I will make that change in next version.
Yes, that sounds better. I guess at least in the case of autodetection
the mode can be overridden by software later, but that can always be
added later if someone actually needs the feature.
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next prev parent reply other threads:[~2021-09-03 11:24 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-09-01 12:35 [PATCH v3 0/2] add support for Cadence's XSPI controller Parshuram Thombare
2021-09-01 12:37 ` [PATCH v3 1/2] spi: cadence: add dt-bindings documentation for Cadence " Parshuram Thombare
2021-09-02 12:03 ` Rob Herring
2021-09-03 8:03 ` Parshuram Raju Thombare
2021-09-03 18:17 ` Pratyush Yadav
2021-09-08 6:52 ` Parshuram Raju Thombare
2021-09-08 11:32 ` Pratyush Yadav
2021-09-08 11:58 ` Parshuram Raju Thombare
2021-09-01 12:37 ` [PATCH v3 2/2] spi: cadence: add support " Parshuram Thombare
2021-09-02 14:39 ` Mark Brown
2021-09-03 8:10 ` Parshuram Raju Thombare
2021-09-03 10:18 ` Mark Brown
2021-09-03 10:47 ` Parshuram Raju Thombare
2021-09-03 11:24 ` Mark Brown [this message]
2021-09-03 18:56 ` Pratyush Yadav
2021-09-08 7:27 ` Parshuram Raju Thombare
2021-09-08 11:21 ` Pratyush Yadav
2021-09-08 11:40 ` Parshuram Raju Thombare
2021-09-08 12:24 ` Mark Brown
2021-09-08 16:22 ` Pratyush Yadav
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