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SubjectRe: [PATCH 2/5] arm64: dts: ti: k3-j721e-main: Add serdes_ln_ctrl node to select SERDES lane mux
On Wed, Jan 08, 2020 at 01:18:27PM +0200, Roger Quadros wrote:
> From: Kishon Vijay Abraham I <kishon@ti.com>
>
> Add serdes_ln_ctrl node used for selecting SERDES lane mux.
>
> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
> Signed-off-by: Sekhar Nori <nsekhar@ti.com>
> Signed-off-by: Roger Quadros <rogerq@ti.com>
> ---
> arch/arm64/boot/dts/ti/k3-j721e-main.dtsi | 26 +++++++++++
> include/dt-bindings/mux/mux-j721e-wiz.h | 53 +++++++++++++++++++++++
> 2 files changed, 79 insertions(+)
> create mode 100644 include/dt-bindings/mux/mux-j721e-wiz.h
>
> diff --git a/arch/arm64/boot/dts/ti/k3-j721e-main.dtsi b/arch/arm64/boot/dts/ti/k3-j721e-main.dtsi
> index 24cb78db28e4..6741c1e67f50 100644
> --- a/arch/arm64/boot/dts/ti/k3-j721e-main.dtsi
> +++ b/arch/arm64/boot/dts/ti/k3-j721e-main.dtsi
> @@ -5,6 +5,8 @@
> * Copyright (C) 2016-2019 Texas Instruments Incorporated - http://www.ti.com/
> */
> #include <dt-bindings/phy/phy.h>
> +#include <dt-bindings/mux/mux.h>
> +#include <dt-bindings/mux/mux-j721e-wiz.h>
>
> &cbass_main {
> msmc_ram: sram@70000000 {
> @@ -19,6 +21,30 @@
> };
> };
>
> + scm_conf: scm_conf@100000 {

Don't use '_' in node names.

> + compatible = "syscon", "simple-mfd";

Needs a specific compatible especially since the child node doesn't have
one.

> + reg = <0 0x00100000 0 0x1c000>;
> + #address-cells = <1>;
> + #size-cells = <1>;
> + ranges = <0x0 0x0 0x00100000 0x1c000>;
> +
> + serdes_ln_ctrl: serdes_ln_ctrl@4080 {

'reg' is needed if there's a unit-address. If there's a register range
with only the mux controls, then add 'reg'.

> + compatible = "mmio-mux";
> + #mux-control-cells = <1>;
> + mux-reg-masks = <0x4080 0x3>, <0x4084 0x3>, /* SERDES0 lane0/1 select */
> + <0x4090 0x3>, <0x4094 0x3>, /* SERDES1 lane0/1 select */
> + <0x40a0 0x3>, <0x40a4 0x3>, /* SERDES2 lane0/1 select */
> + <0x40b0 0x3>, <0x40b4 0x3>, /* SERDES3 lane0/1 select */
> + <0x40c0 0x3>, <0x40c4 0x3>, <0x40c8 0x3>, <0x40cc 0x3>;
> + /* SERDES4 lane0/1/2/3 select */
> + idle-states = <SERDES0_LANE0_PCIE0_LANE0>, <SERDES0_LANE1_PCIE0_LANE1>,
> + <SERDES1_LANE0_PCIE1_LANE0>, <SERDES1_LANE1_PCIE1_LANE1>,
> + <SERDES2_LANE0_PCIE2_LANE0>, <SERDES2_LANE1_PCIE2_LANE1>,
> + <MUX_IDLE_AS_IS>, <SERDES3_LANE1_USB3_0>,
> + <SERDES4_LANE0_EDP_LANE0>, <SERDES4_LANE1_EDP_LANE1>, <SERDES4_LANE2_EDP_LANE2>, <SERDES4_LANE3_EDP_LANE3>;
> + };
> + };
> +
> gic500: interrupt-controller@1800000 {
> compatible = "arm,gic-v3";
> #address-cells = <2>;
> diff --git a/include/dt-bindings/mux/mux-j721e-wiz.h b/include/dt-bindings/mux/mux-j721e-wiz.h
> new file mode 100644
> index 000000000000..fd1c4ea9fc7f
> --- /dev/null
> +++ b/include/dt-bindings/mux/mux-j721e-wiz.h
> @@ -0,0 +1,53 @@
> +/* SPDX-License-Identifier: GPL-2.0 */
> +/*
> + * This header provides constants for J721E WIZ.
> + */
> +
> +#ifndef _DT_BINDINGS_J721E_WIZ
> +#define _DT_BINDINGS_J721E_WIZ
> +
> +#define SERDES0_LANE0_QSGMII_LANE1 0x0
> +#define SERDES0_LANE0_PCIE0_LANE0 0x1
> +#define SERDES0_LANE0_USB3_0_SWAP 0x2
> +
> +#define SERDES0_LANE1_QSGMII_LANE2 0x0
> +#define SERDES0_LANE1_PCIE0_LANE1 0x1
> +#define SERDES0_LANE1_USB3_0 0x2
> +
> +#define SERDES1_LANE0_QSGMII_LANE3 0x0
> +#define SERDES1_LANE0_PCIE1_LANE0 0x1
> +#define SERDES1_LANE0_USB3_1_SWAP 0x2
> +#define SERDES1_LANE0_SGMII_LANE0 0x3
> +
> +#define SERDES1_LANE1_QSGMII_LANE4 0x0
> +#define SERDES1_LANE1_PCIE1_LANE1 0x1
> +#define SERDES1_LANE1_USB3_1 0x2
> +#define SERDES1_LANE1_SGMII_LANE1 0x3
> +
> +#define SERDES2_LANE0_PCIE2_LANE0 0x1
> +#define SERDES2_LANE0_SGMII_LANE0 0x3
> +#define SERDES2_LANE0_USB3_1_SWAP 0x2
> +
> +#define SERDES2_LANE1_PCIE2_LANE1 0x1
> +#define SERDES2_LANE1_USB3_1 0x2
> +#define SERDES2_LANE1_SGMII_LANE1 0x3
> +
> +#define SERDES3_LANE0_PCIE3_LANE0 0x1
> +#define SERDES3_LANE0_USB3_0_SWAP 0x2
> +
> +#define SERDES3_LANE1_PCIE3_LANE1 0x1
> +#define SERDES3_LANE1_USB3_0 0x2
> +
> +#define SERDES4_LANE0_EDP_LANE0 0x0
> +#define SERDES4_LANE0_QSGMII_LANE5 0x2
> +
> +#define SERDES4_LANE1_EDP_LANE1 0x0
> +#define SERDES4_LANE1_QSGMII_LANE6 0x2
> +
> +#define SERDES4_LANE2_EDP_LANE2 0x0
> +#define SERDES4_LANE2_QSGMII_LANE7 0x2
> +
> +#define SERDES4_LANE3_EDP_LANE3 0x0
> +#define SERDES4_LANE3_QSGMII_LANE8 0x2
> +
> +#endif /* _DT_BINDINGS_J721E_WIZ */
> --
> Texas Instruments Finland Oy, Porkkalankatu 22, 00180 Helsinki.
> Y-tunnus/Business ID: 0615521-4. Kotipaikka/Domicile: Helsinki
>

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