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Message-ID: <Zn58pDsX5YZL/pTD@daire-X570>
Date: Fri, 28 Jun 2024 10:04:36 +0100
From: Daire McNamara <daire.mcnamara@...rochip.com>
To: Conor Dooley <conor@...nel.org>
CC: <linux-pci@...r.kernel.org>, Conor Dooley <conor.dooley@...rochip.com>,
Lorenzo Pieralisi <lpieralisi@...nel.org>, Krzysztof
Wilczyński <kw@...ux.com>, Rob Herring <robh@...nel.org>,
Bjorn Helgaas <bhelgaas@...gle.com>, Krzysztof Kozlowski
<krzk+dt@...nel.org>, Conor Dooley <conor+dt@...nel.org>,
<devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
<linux-riscv@...ts.infradead.org>
Subject: Re: [PATCH v2 0/2] PCI: microchip: support using either instance 1
or 2
With the proviso of fixing the axi_/apb_ nit
Acked-by: Daire McNamara <daire.mcnamara@...rochip.com>
On Wed, Jun 12, 2024 at 11:57:54AM +0100, Conor Dooley wrote:
> From: Conor Dooley <conor.dooley@...rochip.com>
>
> The current driver and binding for PolarFire SoC's PCI controller assume
> that the root port instance in use is instance 1. The second reg
> property constitutes the region encompassing both "control" and "bridge"
> registers for both instances. In the driver, a fixed offset is applied to
> find the base addresses for instance 1's "control" and "bridge"
> registers. The BeagleV Fire uses root port instance 2, so something must
> be done so that software can differentiate. This series splits the
> second reg property in two, with dedicated "control" and "bridge"
> entries so that either instance can be used.
>
> Cheers,
> Conor.
>
> v2:
> - try the new reg format before the old one to avoid warnings in the
> new case
> - reword $subject for 2/2
>
> CC: Daire McNamara <daire.mcnamara@...rochip.com>
> CC: Lorenzo Pieralisi <lpieralisi@...nel.org>
> CC: Krzysztof Wilczyński <kw@...ux.com>
> CC: Rob Herring <robh@...nel.org>
> CC: Bjorn Helgaas <bhelgaas@...gle.com>
> CC: Krzysztof Kozlowski <krzk+dt@...nel.org>
> CC: Conor Dooley <conor+dt@...nel.org>
> CC: linux-pci@...r.kernel.org
> CC: devicetree@...r.kernel.org
> CC: linux-kernel@...r.kernel.org
> CC: linux-riscv@...ts.infradead.org
>
> Conor Dooley (2):
> dt-bindings: PCI: microchip,pcie-host: fix reg properties
> PCI: microchip: rework reg region handing to support using either
> instance 1 or 2
>
> .../bindings/pci/microchip,pcie-host.yaml | 10 +-
> drivers/pci/controller/pcie-microchip-host.c | 155 +++++++++---------
> 2 files changed, 79 insertions(+), 86 deletions(-)
>
> --
> 2.43.0
>
>
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