From: Joakim Tjernlund <Joakim.Tjernlund@infinera.com>
To: "andy.shevchenko@gmail.com" <andy.shevchenko@gmail.com>,
"andriy.shevchenko@linux.intel.com"
<andriy.shevchenko@linux.intel.com>,
"mpe@ellerman.id.au" <mpe@ellerman.id.au>,
"chris.packham@alliedtelesis.co.nz"
<chris.packham@alliedtelesis.co.nz>,
"wsa@kernel.org" <wsa@kernel.org>,
"robh+dt@kernel.org" <robh+dt@kernel.org>
Cc: "linuxppc-dev@lists.ozlabs.org" <linuxppc-dev@lists.ozlabs.org>,
"devicetree@vger.kernel.org" <devicetree@vger.kernel.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"paulus@samba.org" <paulus@samba.org>,
"linux-i2c@vger.kernel.org" <linux-i2c@vger.kernel.org>
Subject: Re: [PATCH v2 2/3] powerpc/fsl: set fsl, i2c-erratum-a004447 flag for P2041 i2c controllers
Date: Fri, 7 May 2021 08:04:34 +0000 [thread overview]
Message-ID: <5e625652e3f980b7cd9fb86fe3d66f19a2f4201d.camel@infinera.com> (raw)
In-Reply-To: <20210507004047.4454-3-chris.packham@alliedtelesis.co.nz>
On Fri, 2021-05-07 at 12:40 +1200, Chris Packham wrote:
> The i2c controllers on the P2040/P2041 have an erratum where the
> documented scheme for i2c bus recovery will not work (A-004447). A
> different mechanism is needed which is documented in the P2040 Chip
> Errata Rev Q (latest available at the time of writing).
From what I can tell this Erratum also applies to P1010
Jocke
WARNING: multiple messages have this Message-ID (diff)
From: Joakim Tjernlund <Joakim.Tjernlund@infinera.com>
To: "andy.shevchenko@gmail.com" <andy.shevchenko@gmail.com>,
"andriy.shevchenko@linux.intel.com"
<andriy.shevchenko@linux.intel.com>,
"mpe@ellerman.id.au" <mpe@ellerman.id.au>,
"chris.packham@alliedtelesis.co.nz"
<chris.packham@alliedtelesis.co.nz>,
"wsa@kernel.org" <wsa@kernel.org>,
"robh+dt@kernel.org" <robh+dt@kernel.org>
Cc: "devicetree@vger.kernel.org" <devicetree@vger.kernel.org>,
"linuxppc-dev@lists.ozlabs.org" <linuxppc-dev@lists.ozlabs.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"paulus@samba.org" <paulus@samba.org>,
"linux-i2c@vger.kernel.org" <linux-i2c@vger.kernel.org>
Subject: Re: [PATCH v2 2/3] powerpc/fsl: set fsl, i2c-erratum-a004447 flag for P2041 i2c controllers
Date: Fri, 7 May 2021 08:04:34 +0000 [thread overview]
Message-ID: <5e625652e3f980b7cd9fb86fe3d66f19a2f4201d.camel@infinera.com> (raw)
In-Reply-To: <20210507004047.4454-3-chris.packham@alliedtelesis.co.nz>
On Fri, 2021-05-07 at 12:40 +1200, Chris Packham wrote:
> The i2c controllers on the P2040/P2041 have an erratum where the
> documented scheme for i2c bus recovery will not work (A-004447). A
> different mechanism is needed which is documented in the P2040 Chip
> Errata Rev Q (latest available at the time of writing).
From what I can tell this Erratum also applies to P1010
Jocke
next prev parent reply other threads:[~2021-05-07 8:04 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-05-07 0:40 [PATCH v2 0/3] P2040/P2041 i2c recovery erratum Chris Packham
2021-05-07 0:40 ` Chris Packham
2021-05-07 0:40 ` [PATCH v2 1/3] dt-bindings: i2c: mpc: Add fsl,i2c-erratum-a004447 flag Chris Packham
2021-05-07 0:40 ` [PATCH v2 1/3] dt-bindings: i2c: mpc: Add fsl, i2c-erratum-a004447 flag Chris Packham
2021-05-07 21:49 ` [PATCH v2 1/3] dt-bindings: i2c: mpc: Add fsl,i2c-erratum-a004447 flag Rob Herring
2021-05-07 21:49 ` Rob Herring
2021-05-09 21:08 ` Chris Packham
2021-05-09 21:08 ` [PATCH v2 1/3] dt-bindings: i2c: mpc: Add fsl, i2c-erratum-a004447 flag Chris Packham
2021-05-11 15:33 ` [PATCH v2 1/3] dt-bindings: i2c: mpc: Add fsl,i2c-erratum-a004447 flag Rob Herring
2021-05-11 15:33 ` [PATCH v2 1/3] dt-bindings: i2c: mpc: Add fsl, i2c-erratum-a004447 flag Rob Herring
2021-05-07 0:40 ` [PATCH v2 2/3] powerpc/fsl: set fsl,i2c-erratum-a004447 flag for P2041 i2c controllers Chris Packham
2021-05-07 0:40 ` [PATCH v2 2/3] powerpc/fsl: set fsl, i2c-erratum-a004447 " Chris Packham
2021-05-07 8:04 ` Joakim Tjernlund [this message]
2021-05-07 8:04 ` Joakim Tjernlund
2021-05-07 8:24 ` Joakim Tjernlund
2021-05-07 8:24 ` Joakim Tjernlund
2021-05-09 21:11 ` Chris Packham
2021-05-09 21:11 ` Chris Packham
2021-05-07 0:40 ` [PATCH v2 3/3] i2c: mpc: implement erratum A-004447 workaround Chris Packham
2021-05-07 0:40 ` Chris Packham
2021-05-07 11:46 ` Andy Shevchenko
2021-05-07 11:46 ` Andy Shevchenko
2021-05-07 14:52 ` Joakim Tjernlund
2021-05-07 14:52 ` Joakim Tjernlund
2021-05-07 15:36 ` Andy Shevchenko
2021-05-07 15:36 ` Andy Shevchenko
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