[PATCH 1/2] pci_endpoint: Add TI K3 Cadence PCIe Endpoint Controller driver

[Tom Rini]

On Thu, Jun 12, 2025 at 02:20:22PM +0530, Hrushikesh Salunke wrote:

> Add support for Endpoint mode of operation in the Cadence PCIe
> Controller present on TI's K3 SoCs. This driver is an adaptation of the
> Linux driver.

Please mention what release you're adopting from as it will make future
resyncs easier.

> 
> Signed-off-by: Hrushikesh Salunke <h-salunke at ti.com>
> ---
>  drivers/pci_endpoint/Kconfig           |   6 +
>  drivers/pci_endpoint/Makefile          |   1 +
>  drivers/pci_endpoint/pcie_cdns_ti_ep.c | 399 +++++++++++++++++++++++++
>  3 files changed, 406 insertions(+)
>  create mode 100644 drivers/pci_endpoint/pcie_cdns_ti_ep.c
> 
> diff --git a/drivers/pci_endpoint/Kconfig b/drivers/pci_endpoint/Kconfig
> index 19cfa0aafb5..413556a4982 100644
> --- a/drivers/pci_endpoint/Kconfig
> +++ b/drivers/pci_endpoint/Kconfig
> @@ -22,6 +22,12 @@ config PCIE_CADENCE_EP
>  	  endpoint mode. This PCIe controller may be embedded into many
>  	  different vendors SoCs.
>  
> +config PCIE_CDNS_TI_EP
> +	bool "TI K3 PCIe EP support"
> +	help
> +		Say Y here to enable support for the Canence PCIe Controller
> +		in Endpoint Mode on TI's K3 Socs.

Spacing is off.

> +
>  config PCI_SANDBOX_EP
>  	bool "Sandbox PCIe endpoint controller"
>  	depends on PCI_ENDPOINT
> diff --git a/drivers/pci_endpoint/Makefile b/drivers/pci_endpoint/Makefile
> index 3cd987259d3..62a865c4463 100644
> --- a/drivers/pci_endpoint/Makefile
> +++ b/drivers/pci_endpoint/Makefile
> @@ -6,3 +6,4 @@
>  obj-y += pci_ep-uclass.o
>  obj-$(CONFIG_PCIE_CADENCE_EP) += pcie-cadence-ep.o
>  obj-$(CONFIG_PCI_SANDBOX_EP) += sandbox-pci_ep.o
> +obj-$(CONFIG_PCIE_CDNS_TI_EP) += pcie_cdns_ti_ep.o
> diff --git a/drivers/pci_endpoint/pcie_cdns_ti_ep.c b/drivers/pci_endpoint/pcie_cdns_ti_ep.c
> new file mode 100644
> index 00000000000..18b9e45911e
> --- /dev/null
> +++ b/drivers/pci_endpoint/pcie_cdns_ti_ep.c
> @@ -0,0 +1,399 @@
> +// SPDX-License-Identifier: GPL-2.0-only OR MIT
> +/*
> + * Copyright (C) 2025 Texas Instruments Incorporated - https://www.ti.com
> + *
> + * PCIe Endpoint controller driver for TI's K3 SoCs with Cadence PCIe controller
> + *
> + * Ported from the Linux driver - drivers/pci/controller/cadence/pci-j721e.c
> + *
> + * Author: Hrushikesh Salunke <h-salunke at ti.com>
> + *
> + */
> +
> +#include <asm/gpio.h>
> +#include <clk-uclass.h>
> +#include <dm.h>
> +#include <dm/device_compat.h>
> +#include <generic-phy.h>
> +#include <linux/delay.h>
> +#include <linux/io.h>
> +#include <linux/ioport.h>
> +#include <linux/log2.h>
> +#include <linux/sizes.h>
> +#include <power-domain.h>
> +#include <regmap.h>
> +#include <syscon.h>
> +#include <pcie-cadence.h>
> +#include <pci_ep.h>

Please audit this include list.

Otherwise seems fine, thanks.

-- 
Tom
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