[PATCH v5 14/14] dt-bindings: arm: freescale: Remove fsl,scu txt file
Viorel Suman
viorel.suman at nxp.com
Thu Jun 16 09:43:03 PDT 2022
From: Abel Vesa <abel.vesa at nxp.com>
Now that all the child nodes have been properly documented in the
yaml files, within their proper subystems, we can drop the fsl,scu.txt.
Signed-off-by: Abel Vesa <abel.vesa at nxp.com>
Signed-off-by: Viorel Suman <viorel.suman at nxp.com>
---
.../bindings/arm/freescale/fsl,scu.txt | 271 ------------------
1 file changed, 271 deletions(-)
delete mode 100644 Documentation/devicetree/bindings/arm/freescale/fsl,scu.txt
diff --git a/Documentation/devicetree/bindings/arm/freescale/fsl,scu.txt b/Documentation/devicetree/bindings/arm/freescale/fsl,scu.txt
deleted file mode 100644
index a87ec15e28d2..000000000000
--- a/Documentation/devicetree/bindings/arm/freescale/fsl,scu.txt
+++ /dev/null
@@ -1,271 +0,0 @@
-NXP i.MX System Controller Firmware (SCFW)
---------------------------------------------------------------------
-
-The System Controller Firmware (SCFW) is a low-level system function
-which runs on a dedicated Cortex-M core to provide power, clock, and
-resource management. It exists on some i.MX8 processors. e.g. i.MX8QM
-(QM, QP), and i.MX8QX (QXP, DX).
-
-The AP communicates with the SC using a multi-ported MU module found
-in the LSIO subsystem. The current definition of this MU module provides
-5 remote AP connections to the SC to support up to 5 execution environments
-(TZ, HV, standard Linux, etc.). The SC side of this MU module interfaces
-with the LSIO DSC IP bus. The SC firmware will communicate with this MU
-using the MSI bus.
-
-System Controller Device Node:
-============================================================
-
-The scu node with the following properties shall be under the /firmware/ node.
-
-Required properties:
--------------------
-- compatible: should be "fsl,imx-scu".
-- mbox-names: should include "tx0", "tx1", "tx2", "tx3",
- "rx0", "rx1", "rx2", "rx3";
- include "gip3" if want to support general MU interrupt.
-- mboxes: List of phandle of 4 MU channels for tx, 4 MU channels for
- rx, and 1 optional MU channel for general interrupt.
- All MU channels must be in the same MU instance.
- Cross instances are not allowed. The MU instance can only
- be one of LSIO MU0~M4 for imx8qxp and imx8qm. Users need
- to make sure use the one which is not conflict with other
- execution environments. e.g. ATF.
- Note:
- Channel 0 must be "tx0" or "rx0".
- Channel 1 must be "tx1" or "rx1".
- Channel 2 must be "tx2" or "rx2".
- Channel 3 must be "tx3" or "rx3".
- General interrupt rx channel must be "gip3".
- e.g.
- mboxes = <&lsio_mu1 0 0
- &lsio_mu1 0 1
- &lsio_mu1 0 2
- &lsio_mu1 0 3
- &lsio_mu1 1 0
- &lsio_mu1 1 1
- &lsio_mu1 1 2
- &lsio_mu1 1 3
- &lsio_mu1 3 3>;
- See Documentation/devicetree/bindings/mailbox/fsl,mu.yaml
- for detailed mailbox binding.
-
-Note: Each mu which supports general interrupt should have an alias correctly
-numbered in "aliases" node.
-e.g.
-aliases {
- mu1 = &lsio_mu1;
-};
-
-i.MX SCU Client Device Node:
-============================================================
-
-Client nodes are maintained as children of the relevant IMX-SCU device node.
-
-Power domain bindings based on SCU Message Protocol
-------------------------------------------------------------
-
-This binding for the SCU power domain providers uses the generic power
-domain binding[2].
-
-Required properties:
-- compatible: Should be one of:
- "fsl,imx8qm-scu-pd",
- "fsl,imx8qxp-scu-pd"
- followed by "fsl,scu-pd"
-
-- #power-domain-cells: Must be 1. Contains the Resource ID used by
- SCU commands.
- See detailed Resource ID list from:
- include/dt-bindings/firmware/imx/rsrc.h
-
-Clock bindings based on SCU Message Protocol
-------------------------------------------------------------
-
-This binding uses the common clock binding[1].
-
-Required properties:
-- compatible: Should be one of:
- "fsl,imx8dxl-clk"
- "fsl,imx8qm-clk"
- "fsl,imx8qxp-clk"
- followed by "fsl,scu-clk"
-- #clock-cells: Should be 2.
- Contains the Resource and Clock ID value.
-- clocks: List of clock specifiers, must contain an entry for
- each required entry in clock-names
-- clock-names: Should include entries "xtal_32KHz", "xtal_24MHz"
-
-The clock consumer should specify the desired clock by having the clock
-ID in its "clocks" phandle cell.
-
-See the full list of clock IDs from:
-include/dt-bindings/clock/imx8qxp-clock.h
-
-Pinctrl bindings based on SCU Message Protocol
-------------------------------------------------------------
-
-This binding uses the i.MX common pinctrl binding[3].
-
-Required properties:
-- compatible: Should be one of:
- "fsl,imx8qm-iomuxc",
- "fsl,imx8qxp-iomuxc",
- "fsl,imx8dxl-iomuxc".
-
-Required properties for Pinctrl sub nodes:
-- fsl,pins: Each entry consists of 3 integers which represents
- the mux and config setting for one pin. The first 2
- integers <pin_id mux_mode> are specified using a
- PIN_FUNC_ID macro, which can be found in
- <dt-bindings/pinctrl/pads-imx8qm.h>,
- <dt-bindings/pinctrl/pads-imx8qxp.h>,
- <dt-bindings/pinctrl/pads-imx8dxl.h>.
- The last integer CONFIG is the pad setting value like
- pull-up on this pin.
-
- Please refer to i.MX8QXP Reference Manual for detailed
- CONFIG settings.
-
-[1] Documentation/devicetree/bindings/clock/clock-bindings.txt
-[2] Documentation/devicetree/bindings/power/power-domain.yaml
-[3] Documentation/devicetree/bindings/pinctrl/fsl,imx-pinctrl.txt
-
-RTC bindings based on SCU Message Protocol
-------------------------------------------------------------
-
-Required properties:
-- compatible: should be "fsl,imx8qxp-sc-rtc";
-
-OCOTP bindings based on SCU Message Protocol
-------------------------------------------------------------
-Required properties:
-- compatible: Should be one of:
- "fsl,imx8qm-scu-ocotp",
- "fsl,imx8qxp-scu-ocotp".
-- #address-cells: Must be 1. Contains byte index
-- #size-cells: Must be 1. Contains byte length
-
-Optional Child nodes:
-
-- Data cells of ocotp:
- Detailed bindings are described in bindings/nvmem/nvmem.txt
-
-Watchdog bindings based on SCU Message Protocol
-------------------------------------------------------------
-
-Required properties:
-- compatible: should be:
- "fsl,imx8qxp-sc-wdt"
- followed by "fsl,imx-sc-wdt";
-Optional properties:
-- timeout-sec: contains the watchdog timeout in seconds.
-
-SCU key bindings based on SCU Message Protocol
-------------------------------------------------------------
-
-Required properties:
-- compatible: should be:
- "fsl,imx8qxp-sc-key"
- followed by "fsl,imx-sc-key";
-- linux,keycodes: See Documentation/devicetree/bindings/input/input.yaml
-
-Thermal bindings based on SCU Message Protocol
-------------------------------------------------------------
-
-Required properties:
-- compatible: Should be :
- "fsl,imx8qxp-sc-thermal"
- followed by "fsl,imx-sc-thermal";
-
-- #thermal-sensor-cells: See Documentation/devicetree/bindings/thermal/thermal-sensor.yaml
- for a description.
-
-Example (imx8qxp):
--------------
-aliases {
- mu1 = &lsio_mu1;
-};
-
-lsio_mu1: mailbox at 5d1c0000 {
- ...
- #mbox-cells = <2>;
-};
-
-firmware {
- scu {
- compatible = "fsl,imx-scu";
- mbox-names = "tx0", "tx1", "tx2", "tx3",
- "rx0", "rx1", "rx2", "rx3",
- "gip3";
- mboxes = <&lsio_mu1 0 0
- &lsio_mu1 0 1
- &lsio_mu1 0 2
- &lsio_mu1 0 3
- &lsio_mu1 1 0
- &lsio_mu1 1 1
- &lsio_mu1 1 2
- &lsio_mu1 1 3
- &lsio_mu1 3 3>;
-
- clk: clk {
- compatible = "fsl,imx8qxp-clk", "fsl,scu-clk";
- #clock-cells = <2>;
- };
-
- iomuxc {
- compatible = "fsl,imx8qxp-iomuxc";
-
- pinctrl_lpuart0: lpuart0grp {
- fsl,pins = <
- SC_P_UART0_RX_ADMA_UART0_RX 0x06000020
- SC_P_UART0_TX_ADMA_UART0_TX 0x06000020
- >;
- };
- ...
- };
-
- ocotp: imx8qx-ocotp {
- compatible = "fsl,imx8qxp-scu-ocotp";
- #address-cells = <1>;
- #size-cells = <1>;
-
- fec_mac0: mac at 2c4 {
- reg = <0x2c4 8>;
- };
- };
-
- pd: imx8qx-pd {
- compatible = "fsl,imx8qxp-scu-pd", "fsl,scu-pd";
- #power-domain-cells = <1>;
- };
-
- rtc: rtc {
- compatible = "fsl,imx8qxp-sc-rtc";
- };
-
- scu_key: scu-key {
- compatible = "fsl,imx8qxp-sc-key", "fsl,imx-sc-key";
- linux,keycodes = <KEY_POWER>;
- };
-
- watchdog {
- compatible = "fsl,imx8qxp-sc-wdt", "fsl,imx-sc-wdt";
- timeout-sec = <60>;
- };
-
- tsens: thermal-sensor {
- compatible = "fsl,imx8qxp-sc-thermal", "fsl,imx-sc-thermal";
- #thermal-sensor-cells = <1>;
- };
- };
-};
-
-serial at 5a060000 {
- ...
- pinctrl-names = "default";
- pinctrl-0 = <&pinctrl_lpuart0>;
- clocks = <&uart0_clk IMX_SC_R_UART_0 IMX_SC_PM_CLK_PER>;
- clock-names = "ipg";
- power-domains = <&pd IMX_SC_R_UART_0>;
-};
--
2.25.1
More information about the linux-arm-kernel
mailing list