linux-kernel - Re: [PATCH v7 5/5] PCI: j721e: add j784s4 PCIe configuration

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Date:   Fri, 25 Nov 2022 14:32:49 +0200
From:   Roger Quadros <rogerq@...nel.org>
To:     Matt Ranostay <mranostay@...com>, lpieralisi@...nel.org,
        robh@...nel.org, kw@...ux.com, bhelgaas@...gle.com,
        krzysztof.kozlowski@...aro.org, vigneshr@...com,
        tjoseph@...ence.com, sergio.paracuellos@...il.com,
        pthombar@...ence.com, linux-pci@...r.kernel.org
Cc:     devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-omap@...r.kernel.org, linux-kernel@...r.kernel.org,
        Achal Verma <a-verma1@...com>
Subject: Re: [PATCH v7 5/5] PCI: j721e: add j784s4 PCIe configuration



On 24/11/2022 10:12, Matt Ranostay wrote:
> Add PCIe configuration for j784s4 platform which has 4x lane support.
> 
> Tested-by: Achal Verma <a-verma1@...com>
> Signed-off-by: Matt Ranostay <mranostay@...com>

Reviewed-by: Roger Quadros <rogerq@...nel.org>

> ---
>  drivers/pci/controller/cadence/pci-j721e.c | 23 ++++++++++++++++++++++
>  1 file changed, 23 insertions(+)
> 
> diff --git a/drivers/pci/controller/cadence/pci-j721e.c b/drivers/pci/controller/cadence/pci-j721e.c
> index dab3db9be6d8..c484d658c18a 100644
> --- a/drivers/pci/controller/cadence/pci-j721e.c
> +++ b/drivers/pci/controller/cadence/pci-j721e.c
> @@ -330,6 +330,21 @@ static const struct j721e_pcie_data am64_pcie_ep_data = {
>  	.max_lanes = 1,
>  };
>  
> +static const struct j721e_pcie_data j784s4_pcie_rc_data = {
> +	.mode = PCI_MODE_RC,
> +	.quirk_retrain_flag = true,
> +	.is_intc_v1 = true,
> +	.byte_access_allowed = false,
> +	.linkdown_irq_regfield = LINK_DOWN,
> +	.max_lanes = 4,
> +};
> +
> +static const struct j721e_pcie_data j784s4_pcie_ep_data = {
> +	.mode = PCI_MODE_EP,
> +	.linkdown_irq_regfield = LINK_DOWN,
> +	.max_lanes = 4,
> +};
> +
>  static const struct of_device_id of_j721e_pcie_match[] = {
>  	{
>  		.compatible = "ti,j721e-pcie-host",
> @@ -355,6 +370,14 @@ static const struct of_device_id of_j721e_pcie_match[] = {
>  		.compatible = "ti,am64-pcie-ep",
>  		.data = &am64_pcie_ep_data,
>  	},
> +	{
> +		.compatible = "ti,j784s4-pcie-host",
> +		.data = &j784s4_pcie_rc_data,
> +	},
> +	{
> +		.compatible = "ti,j784s4-pcie-ep",
> +		.data = &j784s4_pcie_ep_data,
> +	},
>  	{},
>  };
>  

--
cheers,
-roger