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authorLinus Torvalds2021-04-26 16:32:11 -0700
committerLinus Torvalds2021-04-26 16:32:11 -0700
commit4a0225c3d208cfa6e4550f2210ffd9114a952a81 (patch)
tree235f99c743c1e03780a9e75509cba7c50cc3bf7a /Documentation
parentca62e9090d229926f43f20291bb44d67897baab7 (diff)
parent86527bcbc88922ea40df05d28189ee15489d2cf1 (diff)
Merge tag 'spi-v5.13' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi
Pull spi updates from Mark Brown: "The only core work for SPI this time around is the completion of the conversion to the new style method for specifying transfer delays, meaning we can cope with what most controllers support more directly using conversions in the core rather than open coding in drivers. Otherwise it's a good stack of cleanups and fixes plus a few new drivers. Summary: - Completion of the conversion to new style transfer delay configuration - Introduction and use of module_parport_driver() helper, merged here as there's no parport tree - Support for Altera SoCs on DFL buses, NXP i.MX8DL, HiSilicon Kunpeng, MediaTek MT8195" * tag 'spi-v5.13' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi: (113 commits) spi: Rename enable1 to activate in spi_set_cs() spi: Convert Freescale QSPI binding to json schema spi: stm32-qspi: fix debug format string spi: tools: make a symbolic link to the header file spi.h spi: fsi: add a missing of_node_put spi: Make error handling of gpiod_count() call cleaner spidev: Add Micron SPI NOR Authenta device compatible spi: brcm,spi-bcm-qspi: convert to the json-schema spi: altera: Add DFL bus driver for Altera API Controller spi: altera: separate core code from platform code spi: stm32-qspi: Fix compilation warning in ARM64 spi: Handle SPI device setup callback failure. spi: sync up initial chipselect state spi: stm32-qspi: Add dirmap support spi: stm32-qspi: Trigger DMA only if more than 4 bytes to transfer spi: stm32-qspi: fix pm_runtime usage_count counter spi: spi-zynqmp-gqspi: return -ENOMEM if dma_map_single fails spi: spi-zynqmp-gqspi: fix use-after-free in zynqmp_qspi_exec_op spi: spi-zynqmp-gqspi: Resolved slab-out-of-bounds bug spi: spi-zynqmp-gqspi: fix hang issue when suspend/resume ...
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/devicetree/bindings/spi/brcm,spi-bcm-qspi.txt245
-rw-r--r--Documentation/devicetree/bindings/spi/brcm,spi-bcm-qspi.yaml198
-rw-r--r--Documentation/devicetree/bindings/spi/cadence-quadspi.txt68
-rw-r--r--Documentation/devicetree/bindings/spi/cdns,qspi-nor.yaml143
-rw-r--r--Documentation/devicetree/bindings/spi/fsl,spi-fsl-qspi.yaml96
-rw-r--r--Documentation/devicetree/bindings/spi/mediatek,spi-mtk-nor.yaml1
-rw-r--r--Documentation/devicetree/bindings/spi/spi-fsl-qspi.txt66
-rw-r--r--Documentation/devicetree/bindings/spi/spi-mt65xx.txt2
-rw-r--r--Documentation/devicetree/bindings/spi/spi-nxp-fspi.txt2
-rw-r--r--Documentation/devicetree/bindings/spi/spi-slave-mt27xx.txt1
-rw-r--r--Documentation/spi/spi-summary.rst7
11 files changed, 448 insertions, 381 deletions
diff --git a/Documentation/devicetree/bindings/spi/brcm,spi-bcm-qspi.txt b/Documentation/devicetree/bindings/spi/brcm,spi-bcm-qspi.txt
deleted file mode 100644
index d99a9cf3336b..000000000000
--- a/Documentation/devicetree/bindings/spi/brcm,spi-bcm-qspi.txt
+++ /dev/null
@@ -1,245 +0,0 @@
-Broadcom SPI controller
-
-The Broadcom SPI controller is a SPI master found on various SOCs, including
-BRCMSTB (BCM7XXX), Cygnus, NSP and NS2. The Broadcom Master SPI hw IP consits
-of :
- MSPI : SPI master controller can read and write to a SPI slave device
- BSPI : Broadcom SPI in combination with the MSPI hw IP provides acceleration
- for flash reads and be configured to do single, double, quad lane
- io with 3-byte and 4-byte addressing support.
-
- Supported Broadcom SoCs have one instance of MSPI+BSPI controller IP.
- MSPI master can be used wihout BSPI. BRCMSTB SoCs have an additional instance
- of a MSPI master without the BSPI to use with non flash slave devices that
- use SPI protocol.
-
-Required properties:
-
-- #address-cells:
- Must be <1>, as required by generic SPI binding.
-
-- #size-cells:
- Must be <0>, also as required by generic SPI binding.
-
-- compatible:
- Must be one of :
- "brcm,spi-brcmstb-qspi", "brcm,spi-bcm-qspi" : MSPI+BSPI on BRCMSTB SoCs
- "brcm,spi-brcmstb-mspi", "brcm,spi-bcm-qspi" : Second Instance of MSPI
- BRCMSTB SoCs
- "brcm,spi-bcm7425-qspi", "brcm,spi-bcm-qspi", "brcm,spi-brcmstb-mspi" : Second Instance of MSPI
- BRCMSTB SoCs
- "brcm,spi-bcm7429-qspi", "brcm,spi-bcm-qspi", "brcm,spi-brcmstb-mspi" : Second Instance of MSPI
- BRCMSTB SoCs
- "brcm,spi-bcm7435-qspi", "brcm,spi-bcm-qspi", "brcm,spi-brcmstb-mspi" : Second Instance of MSPI
- BRCMSTB SoCs
- "brcm,spi-bcm7445-qspi", "brcm,spi-bcm-qspi", "brcm,spi-brcmstb-mspi" : Second Instance of MSPI
- BRCMSTB SoCs
- "brcm,spi-bcm7216-qspi", "brcm,spi-bcm-qspi", "brcm,spi-brcmstb-mspi" : Second Instance of MSPI
- BRCMSTB SoCs
- "brcm,spi-bcm7278-qspi", "brcm,spi-bcm-qspi", "brcm,spi-brcmstb-mspi" : Second Instance of MSPI
- BRCMSTB SoCs
- "brcm,spi-nsp-qspi", "brcm,spi-bcm-qspi" : MSPI+BSPI on Cygnus, NSP
- "brcm,spi-ns2-qspi", "brcm,spi-bcm-qspi" : NS2 SoCs
-
-- reg:
- Define the bases and ranges of the associated I/O address spaces.
- The required range is MSPI controller registers.
-
-- reg-names:
- First name does not matter, but must be reserved for the MSPI controller
- register range as mentioned in 'reg' above, and will typically contain
- - "bspi_regs": BSPI register range, not required with compatible
- "spi-brcmstb-mspi"
- - "mspi_regs": MSPI register range is required for compatible strings
- - "intr_regs", "intr_status_reg" : Interrupt and status register for
- NSP, NS2, Cygnus SoC
-
-- interrupts
- The interrupts used by the MSPI and/or BSPI controller.
-
-- interrupt-names:
- Names of interrupts associated with MSPI
- - "mspi_halted" :
- - "mspi_done": Indicates that the requested SPI operation is complete.
- - "spi_lr_fullness_reached" : Linear read BSPI pipe full
- - "spi_lr_session_aborted" : Linear read BSPI pipe aborted
- - "spi_lr_impatient" : Linear read BSPI requested when pipe empty
- - "spi_lr_session_done" : Linear read BSPI session done
-
-- clocks:
- A phandle to the reference clock for this block.
-
-Optional properties:
-
-
-- native-endian
- Defined when using BE SoC and device uses BE register read/write
-
-Recommended optional m25p80 properties:
-- spi-rx-bus-width: Definition as per
- Documentation/devicetree/bindings/spi/spi-bus.txt
-
-Examples:
-
-BRCMSTB SoC Example:
-
- SPI Master (MSPI+BSPI) for SPI-NOR access:
-
- spi@f03e3400 {
- #address-cells = <0x1>;
- #size-cells = <0x0>;
- compatible = "brcm,spi-brcmstb-qspi", "brcm,spi-bcm-qspi";
- reg = <0xf03e0920 0x4 0xf03e3400 0x188 0xf03e3200 0x50>;
- reg-names = "cs_reg", "mspi", "bspi";
- interrupts = <0x6 0x5 0x4 0x3 0x2 0x1 0x0>;
- interrupt-parent = <0x1c>;
- interrupt-names = "mspi_halted",
- "mspi_done",
- "spi_lr_overread",
- "spi_lr_session_done",
- "spi_lr_impatient",
- "spi_lr_session_aborted",
- "spi_lr_fullness_reached";
-
- clocks = <&hif_spi>;
- clock-names = "sw_spi";
-
- m25p80@0 {
- #size-cells = <0x2>;
- #address-cells = <0x2>;
- compatible = "m25p80";
- reg = <0x0>;
- spi-max-frequency = <0x2625a00>;
- spi-cpol;
- spi-cpha;
- m25p,fast-read;
-
- flash0.bolt@0 {
- reg = <0x0 0x0 0x0 0x100000>;
- };
-
- flash0.macadr@100000 {
- reg = <0x0 0x100000 0x0 0x10000>;
- };
-
- flash0.nvram@110000 {
- reg = <0x0 0x110000 0x0 0x10000>;
- };
-
- flash0.kernel@120000 {
- reg = <0x0 0x120000 0x0 0x400000>;
- };
-
- flash0.devtree@520000 {
- reg = <0x0 0x520000 0x0 0x10000>;
- };
-
- flash0.splash@530000 {
- reg = <0x0 0x530000 0x0 0x80000>;
- };
-
- flash0@0 {
- reg = <0x0 0x0 0x0 0x4000000>;
- };
- };
- };
-
-
- MSPI master for any SPI device :
-
- spi@f0416000 {
- #address-cells = <1>;
- #size-cells = <0>;
- clocks = <&upg_fixed>;
- compatible = "brcm,spi-brcmstb-mspi", "brcm,spi-bcm-qspi";
- reg = <0xf0416000 0x180>;
- reg-names = "mspi";
- interrupts = <0x14>;
- interrupt-parent = <&irq0_aon_intc>;
- interrupt-names = "mspi_done";
- };
-
-iProc SoC Example:
-
- qspi: spi@18027200 {
- compatible = "brcm,spi-nsp-qspi", "brcm,spi-bcm-qspi";
- reg = <0x18027200 0x184>,
- <0x18027000 0x124>,
- <0x1811c408 0x004>,
- <0x180273a0 0x01c>;
- reg-names = "mspi_regs", "bspi_regs", "intr_regs", "intr_status_reg";
- interrupts = <GIC_SPI 72 IRQ_TYPE_LEVEL_HIGH>,
- <GIC_SPI 73 IRQ_TYPE_LEVEL_HIGH>,
- <GIC_SPI 74 IRQ_TYPE_LEVEL_HIGH>,
- <GIC_SPI 75 IRQ_TYPE_LEVEL_HIGH>,
- <GIC_SPI 76 IRQ_TYPE_LEVEL_HIGH>,
- <GIC_SPI 77 IRQ_TYPE_LEVEL_HIGH>,
- <GIC_SPI 78 IRQ_TYPE_LEVEL_HIGH>;
- interrupt-names =
- "spi_lr_fullness_reached",
- "spi_lr_session_aborted",
- "spi_lr_impatient",
- "spi_lr_session_done",
- "mspi_done",
- "mspi_halted";
- clocks = <&iprocmed>;
- clock-names = "iprocmed";
- num-cs = <2>;
- #address-cells = <1>;
- #size-cells = <0>;
- };
-
-
- NS2 SoC Example:
-
- qspi: spi@66470200 {
- compatible = "brcm,spi-ns2-qspi", "brcm,spi-bcm-qspi";
- reg = <0x66470200 0x184>,
- <0x66470000 0x124>,
- <0x67017408 0x004>,
- <0x664703a0 0x01c>;
- reg-names = "mspi", "bspi", "intr_regs",
- "intr_status_reg";
- interrupts = <GIC_SPI 419 IRQ_TYPE_LEVEL_HIGH>;
- interrupt-names = "spi_l1_intr";
- clocks = <&iprocmed>;
- clock-names = "iprocmed";
- num-cs = <2>;
- #address-cells = <1>;
- #size-cells = <0>;
- };
-
-
- m25p80 node for NSP, NS2
-
- &qspi {
- flash: m25p80@0 {
- #address-cells = <1>;
- #size-cells = <1>;
- compatible = "m25p80";
- reg = <0x0>;
- spi-max-frequency = <12500000>;
- m25p,fast-read;
- spi-cpol;
- spi-cpha;
-
- partition@0 {
- label = "boot";
- reg = <0x00000000 0x000a0000>;
- };
-
- partition@a0000 {
- label = "env";
- reg = <0x000a0000 0x00060000>;
- };
-
- partition@100000 {
- label = "system";
- reg = <0x00100000 0x00600000>;
- };
-
- partition@700000 {
- label = "rootfs";
- reg = <0x00700000 0x01900000>;
- };
- };
diff --git a/Documentation/devicetree/bindings/spi/brcm,spi-bcm-qspi.yaml b/Documentation/devicetree/bindings/spi/brcm,spi-bcm-qspi.yaml
new file mode 100644
index 000000000000..6ee19d49fd3c
--- /dev/null
+++ b/Documentation/devicetree/bindings/spi/brcm,spi-bcm-qspi.yaml
@@ -0,0 +1,198 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/spi/brcm,spi-bcm-qspi.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Broadcom SPI controller
+
+maintainers:
+ - Kamal Dasu <kdasu.kdev@gmail.com>
+ - Rafał Miłecki <rafal@milecki.pl>
+
+description: |
+ The Broadcom SPI controller is a SPI master found on various SOCs, including
+ BRCMSTB (BCM7XXX), Cygnus, NSP and NS2. The Broadcom Master SPI hw IP consits
+ of:
+ MSPI : SPI master controller can read and write to a SPI slave device
+ BSPI : Broadcom SPI in combination with the MSPI hw IP provides acceleration
+ for flash reads and be configured to do single, double, quad lane
+ io with 3-byte and 4-byte addressing support.
+
+ Supported Broadcom SoCs have one instance of MSPI+BSPI controller IP.
+ MSPI master can be used wihout BSPI. BRCMSTB SoCs have an additional instance
+ of a MSPI master without the BSPI to use with non flash slave devices that
+ use SPI protocol.
+
+allOf:
+ - $ref: spi-controller.yaml#
+
+properties:
+ compatible:
+ oneOf:
+ - description: Second Instance of MSPI BRCMSTB SoCs
+ items:
+ - enum:
+ - brcm,spi-bcm7425-qspi
+ - brcm,spi-bcm7429-qspi
+ - brcm,spi-bcm7435-qspi
+ - brcm,spi-bcm7445-qspi
+ - brcm,spi-bcm7216-qspi
+ - brcm,spi-bcm7278-qspi
+ - const: brcm,spi-bcm-qspi
+ - const: brcm,spi-brcmstb-mspi
+ - description: Second Instance of MSPI BRCMSTB SoCs
+ items:
+ - enum:
+ - brcm,spi-brcmstb-qspi
+ - brcm,spi-brcmstb-mspi
+ - brcm,spi-nsp-qspi
+ - brcm,spi-ns2-qspi
+ - const: brcm,spi-bcm-qspi
+
+ reg:
+ minItems: 1
+ maxItems: 5
+
+ reg-names:
+ minItems: 1
+ maxItems: 5
+ items:
+ - const: mspi
+ - const: bspi
+ - enum: [ intr_regs, intr_status_reg, cs_reg ]
+ - enum: [ intr_regs, intr_status_reg, cs_reg ]
+ - enum: [ intr_regs, intr_status_reg, cs_reg ]
+
+ interrupts:
+ minItems: 1
+ maxItems: 7
+
+ interrupt-names:
+ oneOf:
+ - minItems: 1
+ maxItems: 7
+ items:
+ - const: mspi_done
+ - const: mspi_halted
+ - const: spi_lr_fullness_reached
+ - const: spi_lr_session_aborted
+ - const: spi_lr_impatient
+ - const: spi_lr_session_done
+ - const: spi_lr_overread
+ - const: spi_l1_intr
+
+ clocks:
+ maxItems: 1
+ description: reference clock for this block
+
+ native-endian:
+ $ref: /schemas/types.yaml#/definitions/flag
+ description: Defined when using BE SoC and device uses BE register read/write
+
+unevaluatedProperties: false
+
+required:
+ - reg
+ - reg-names
+ - interrupts
+ - interrupt-names
+
+examples:
+ - | # BRCMSTB SoC: SPI Master (MSPI+BSPI) for SPI-NOR access
+ spi@f03e3400 {
+ compatible = "brcm,spi-brcmstb-qspi", "brcm,spi-bcm-qspi";
+ reg = <0xf03e3400 0x188>, <0xf03e3200 0x50>, <0xf03e0920 0x4>;
+ reg-names = "mspi", "bspi", "cs_reg";
+ interrupts = <0x5>, <0x6>, <0x1>, <0x2>, <0x3>, <0x4>, <0x0>;
+ interrupt-parent = <&gic>;
+ interrupt-names = "mspi_done",
+ "mspi_halted",
+ "spi_lr_fullness_reached",
+ "spi_lr_session_aborted",
+ "spi_lr_impatient",
+ "spi_lr_session_done",
+ "spi_lr_overread";
+ clocks = <&hif_spi>;
+ #address-cells = <0x1>;
+ #size-cells = <0x0>;
+
+ flash@0 {
+ #size-cells = <0x2>;
+ #address-cells = <0x2>;
+ compatible = "m25p80";
+ reg = <0x0>;
+ spi-max-frequency = <0x2625a00>;
+ spi-cpol;
+ spi-cpha;
+ };
+ };
+ - | # BRCMSTB SoC: MSPI master for any SPI device
+ spi@f0416000 {
+ clocks = <&upg_fixed>;
+ compatible = "brcm,spi-brcmstb-mspi", "brcm,spi-bcm-qspi";
+ reg = <0xf0416000 0x180>;
+ reg-names = "mspi";
+ interrupts = <0x14>;
+ interrupt-parent = <&irq0_aon_intc>;
+ interrupt-names = "mspi_done";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ };
+ - | # iProc SoC
+ #include <dt-bindings/interrupt-controller/irq.h>
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+ spi@18027200 {
+ compatible = "brcm,spi-nsp-qspi", "brcm,spi-bcm-qspi";
+ reg = <0x18027200 0x184>,
+ <0x18027000 0x124>,
+ <0x1811c408 0x004>,
+ <0x180273a0 0x01c>;
+ reg-names = "mspi", "bspi", "intr_regs", "intr_status_reg";
+ interrupts = <GIC_SPI 77 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 78 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 72 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 73 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 74 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 75 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 76 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-names = "mspi_done",
+ "mspi_halted",
+ "spi_lr_fullness_reached",
+ "spi_lr_session_aborted",
+ "spi_lr_impatient",
+ "spi_lr_session_done";
+ clocks = <&iprocmed>;
+ num-cs = <2>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ };
+ - | # NS2 SoC
+ #include <dt-bindings/interrupt-controller/irq.h>
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+ spi@66470200 {
+ compatible = "brcm,spi-ns2-qspi", "brcm,spi-bcm-qspi";
+ reg = <0x66470200 0x184>,
+ <0x66470000 0x124>,
+ <0x67017408 0x004>,
+ <0x664703a0 0x01c>;
+ reg-names = "mspi", "bspi", "intr_regs", "intr_status_reg";
+ interrupts = <GIC_SPI 419 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-names = "spi_l1_intr";
+ clocks = <&iprocmed>;
+ num-cs = <2>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ flash@0 {
+ #address-cells = <1>;
+ #size-cells = <1>;
+ compatible = "m25p80";
+ reg = <0x0>;
+ spi-max-frequency = <12500000>;
+ spi-cpol;
+ spi-cpha;
+ };
+ };
diff --git a/Documentation/devicetree/bindings/spi/cadence-quadspi.txt b/Documentation/devicetree/bindings/spi/cadence-quadspi.txt
deleted file mode 100644
index 8ace832a2d80..000000000000
--- a/Documentation/devicetree/bindings/spi/cadence-quadspi.txt
+++ /dev/null
@@ -1,68 +0,0 @@
-* Cadence Quad SPI controller
-
-Required properties:
-- compatible : should be one of the following:
- Generic default - "cdns,qspi-nor".
- For TI 66AK2G SoC - "ti,k2g-qspi", "cdns,qspi-nor".
- For TI AM654 SoC - "ti,am654-ospi", "cdns,qspi-nor".
- For Intel LGM SoC - "intel,lgm-qspi", "cdns,qspi-nor".
-- reg : Contains two entries, each of which is a tuple consisting of a
- physical address and length. The first entry is the address and
- length of the controller register set. The second entry is the
- address and length of the QSPI Controller data area.
-- interrupts : Unit interrupt specifier for the controller interrupt.
-- clocks : phandle to the Quad SPI clock.
-- cdns,fifo-depth : Size of the data FIFO in words.
-- cdns,fifo-width : Bus width of the data FIFO in bytes.
-- cdns,trigger-address : 32-bit indirect AHB trigger address.
-
-Optional properties:
-- cdns,is-decoded-cs : Flag to indicate whether decoder is used or not.
-- cdns,rclk-en : Flag to indicate that QSPI return clock is used to latch
- the read data rather than the QSPI clock. Make sure that QSPI return
- clock is populated on the board before using this property.
-
-Optional subnodes:
-Subnodes of the Cadence Quad SPI controller are spi slave nodes with additional
-custom properties:
-- cdns,read-delay : Delay for read capture logic, in clock cycles
-- cdns,tshsl-ns : Delay in nanoseconds for the length that the master
- mode chip select outputs are de-asserted between
- transactions.
-- cdns,tsd2d-ns : Delay in nanoseconds between one chip select being
- de-activated and the activation of another.
-- cdns,tchsh-ns : Delay in nanoseconds between last bit of current
- transaction and deasserting the device chip select
- (qspi_n_ss_out).
-- cdns,tslch-ns : Delay in nanoseconds between setting qspi_n_ss_out low
- and first bit transfer.
-- resets : Must contain an entry for each entry in reset-names.
- See ../reset/reset.txt for details.
-- reset-names : Must include either "qspi" and/or "qspi-ocp".
-
-Example:
-
- qspi: spi@ff705000 {
- compatible = "cdns,qspi-nor";
- #address-cells = <1>;
- #size-cells = <0>;
- reg = <0xff705000 0x1000>,
- <0xffa00000 0x1000>;
- interrupts = <0 151 4>;
- clocks = <&qspi_clk>;
- cdns,is-decoded-cs;
- cdns,fifo-depth = <128>;
- cdns,fifo-width = <4>;
- cdns,trigger-address = <0x00000000>;
- resets = <&rst QSPI_RESET>, <&rst QSPI_OCP_RESET>;
- reset-names = "qspi", "qspi-ocp";
-
- flash0: n25q00@0 {
- ...
- cdns,read-delay = <4>;
- cdns,tshsl-ns = <50>;
- cdns,tsd2d-ns = <50>;
- cdns,tchsh-ns = <4>;
- cdns,tslch-ns = <4>;
- };
- };
diff --git a/Documentation/devicetree/bindings/spi/cdns,qspi-nor.yaml b/Documentation/devicetree/bindings/spi/cdns,qspi-nor.yaml
new file mode 100644
index 000000000000..0e7087cc8bf9
--- /dev/null
+++ b/Documentation/devicetree/bindings/spi/cdns,qspi-nor.yaml
@@ -0,0 +1,143 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/spi/cdns,qspi-nor.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Cadence Quad SPI controller
+
+maintainers:
+ - Pratyush Yadav <p.yadav@ti.com>
+
+allOf:
+ - $ref: spi-controller.yaml#
+
+properties:
+ compatible:
+ oneOf:
+ - items:
+ - enum:
+ - ti,k2g-qspi
+ - ti,am654-ospi
+ - intel,lgm-qspi
+ - const: cdns,qspi-nor
+ - const: cdns,qspi-nor
+
+ reg:
+ items:
+ - description: the controller register set
+ - description: the controller data area
+
+ interrupts:
+ maxItems: 1
+
+ clocks:
+ maxItems: 1
+
+ cdns,fifo-depth:
+ description:
+ Size of the data FIFO in words.
+ $ref: "/schemas/types.yaml#/definitions/uint32"
+ enum: [ 128, 256 ]
+ default: 128
+
+ cdns,fifo-width:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description:
+ Bus width of the data FIFO in bytes.
+ default: 4
+
+ cdns,trigger-address:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description:
+ 32-bit indirect AHB trigger address.
+
+ cdns,is-decoded-cs:
+ type: boolean
+ description:
+ Flag to indicate whether decoder is used to select different chip select
+ for different memory regions.
+
+ cdns,rclk-en:
+ type: boolean
+ description:
+ Flag to indicate that QSPI return clock is used to latch the read
+ data rather than the QSPI clock. Make sure that QSPI return clock
+ is populated on the board before using this property.
+
+ resets:
+ maxItems: 2
+
+ reset-names:
+ minItems: 1
+ maxItems: 2
+ items:
+ enum: [ qspi, qspi-ocp ]
+
+# subnode's properties
+patternProperties:
+ "@[0-9a-f]+$":
+ type: object
+ description:
+ Flash device uses the below defined properties in the subnode.
+
+ properties:
+ cdns,read-delay:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description:
+ Delay for read capture logic, in clock cycles.
+
+ cdns,tshsl-ns:
+ description:
+ Delay in nanoseconds for the length that the master mode chip select
+ outputs are de-asserted between transactions.
+
+ cdns,tsd2d-ns:
+ description:
+ Delay in nanoseconds between one chip select being de-activated
+ and the activation of another.
+
+ cdns,tchsh-ns:
+ description:
+ Delay in nanoseconds between last bit of current transaction and
+ deasserting the device chip select (qspi_n_ss_out).
+
+ cdns,tslch-ns:
+ description:
+ Delay in nanoseconds between setting qspi_n_ss_out low and
+ first bit transfer.
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - clocks
+ - cdns,fifo-depth
+ - cdns,fifo-width
+ - cdns,trigger-address
+ - '#address-cells'
+ - '#size-cells'
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ qspi: spi@ff705000 {
+ compatible = "cdns,qspi-nor";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0xff705000 0x1000>,
+ <0xffa00000 0x1000>;
+ interrupts = <0 151 4>;
+ clocks = <&qspi_clk>;
+ cdns,fifo-depth = <128>;
+ cdns,fifo-width = <4>;
+ cdns,trigger-address = <0x00000000>;
+ resets = <&rst 0x1>, <&rst 0x2>;
+ reset-names = "qspi", "qspi-ocp";
+
+ flash@0 {
+ compatible = "jedec,spi-nor";
+ reg = <0x0>;
+ };
+ };
diff --git a/Documentation/devicetree/bindings/spi/fsl,spi-fsl-qspi.yaml b/Documentation/devicetree/bindings/spi/fsl,spi-fsl-qspi.yaml
new file mode 100644
index 000000000000..e58644558412
--- /dev/null
+++ b/Documentation/devicetree/bindings/spi/fsl,spi-fsl-qspi.yaml
@@ -0,0 +1,96 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/spi/fsl,spi-fsl-qspi.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Freescale Quad Serial Peripheral Interface (QuadSPI)
+
+maintainers:
+ - Han Xu <han.xu@nxp.com>
+
+allOf:
+ - $ref: "spi-controller.yaml#"
+
+properties:
+ compatible:
+ oneOf:
+ - enum:
+ - fsl,vf610-qspi
+ - fsl,imx6sx-qspi
+ - fsl,imx7d-qspi
+ - fsl,imx6ul-qspi
+ - fsl,ls1021a-qspi
+ - fsl,ls2080a-qspi
+ - items:
+ - enum:
+ - fsl,ls1043a-qspi
+ - const: fsl,ls1021a-qspi
+ - items:
+ - enum:
+ - fsl,imx8mq-qspi
+ - const: fsl,imx7d-qspi
+
+ reg:
+ items:
+ - description: registers
+ - description: memory mapping
+
+ reg-names:
+ items:
+ - const: QuadSPI
+ - const: QuadSPI-memory
+
+ interrupts:
+ maxItems: 1
+
+ clocks:
+ items:
+ - description: SoC SPI qspi_en clock
+ - description: SoC SPI qspi clock
+
+ clock-names:
+ items:
+ - const: qspi_en
+ - const: qspi
+
+required:
+ - compatible
+ - reg
+ - reg-names
+ - interrupts
+ - clocks
+ - clock-names
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ #include <dt-bindings/clock/fsl,qoriq-clockgen.h>
+
+ soc {
+ #address-cells = <2>;
+ #size-cells = <2>;
+
+ spi@1550000 {
+ compatible = "fsl,ls1021a-qspi";
+ reg = <0x0 0x1550000 0x0 0x100000>,
+ <0x0 0x40000000 0x0 0x10000000>;
+ reg-names = "QuadSPI", "QuadSPI-memory";
+ interrupts = <GIC_SPI 99 IRQ_TYPE_LEVEL_HIGH>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ clocks = <&clockgen QORIQ_CLK_PLATFORM_PLL QORIQ_CLK_PLL_DIV(2)>,
+ <&clockgen QORIQ_CLK_PLATFORM_PLL QORIQ_CLK_PLL_DIV(2)>;
+ clock-names = "qspi_en", "qspi";
+
+ flash@0 {
+ compatible = "jedec,spi-nor";
+ spi-max-frequency = <50000000>;
+ reg = <0>;
+ spi-rx-bus-width = <4>;
+ spi-tx-bus-width = <4>;
+ };
+ };
+ };
diff --git a/Documentation/devicetree/bindings/spi/mediatek,spi-mtk-nor.yaml b/Documentation/devicetree/bindings/spi/mediatek,spi-mtk-nor.yaml
index 55c239446a5b..7393f30535df 100644
--- a/Documentation/devicetree/bindings/spi/mediatek,spi-mtk-nor.yaml
+++ b/Documentation/devicetree/bindings/spi/mediatek,spi-mtk-nor.yaml
@@ -31,6 +31,7 @@ properties:
- mediatek,mt7623-nor
- mediatek,mt7629-nor
- mediatek,mt8192-nor
+ - mediatek,mt8195-nor
- enum:
- mediatek,mt8173-nor
- items:
diff --git a/Documentation/devicetree/bindings/spi/spi-fsl-qspi.txt b/Documentation/devicetree/bindings/spi/spi-fsl-qspi.txt
deleted file mode 100644
index 69dc5d57b1ef..000000000000
--- a/Documentation/devicetree/bindings/spi/spi-fsl-qspi.txt
+++ /dev/null
@@ -1,66 +0,0 @@
-* Freescale Quad Serial Peripheral Interface(QuadSPI)
-
-Required properties:
- - compatible : Should be "fsl,vf610-qspi", "fsl,imx6sx-qspi",
- "fsl,imx7d-qspi", "fsl,imx6ul-qspi",
- "fsl,ls1021a-qspi", "fsl,ls2080a-qspi"
- or
- "fsl,ls1043a-qspi" followed by "fsl,ls1021a-qspi"
- - reg : the first contains the register location and length,
- the second contains the memory mapping address and length
- - reg-names: Should contain the reg names "QuadSPI" and "QuadSPI-memory"
- - interrupts : Should contain the interrupt for the device
- - clocks : The clocks needed by the QuadSPI controller
- - clock-names : Should contain the name of the clocks: "qspi_en" and "qspi".
-
-Required SPI slave node properties:
- - reg: There are two buses (A and B) with two chip selects each.
- This encodes to which bus and CS the flash is connected:
- <0>: Bus A, CS 0
- <1>: Bus A, CS 1
- <2>: Bus B, CS 0
- <3>: Bus B, CS 1
-
-Example:
-
-qspi0: quadspi@40044000 {
- compatible = "fsl,vf610-qspi";
- reg = <0x40044000 0x1000>, <0x20000000 0x10000000>;
- reg-names = "QuadSPI", "QuadSPI-memory";
- interrupts = <0 24 IRQ_TYPE_LEVEL_HIGH>;
- clocks = <&clks VF610_CLK_QSPI0_EN>,
- <&clks VF610_CLK_QSPI0>;
- clock-names = "qspi_en", "qspi";
-
- flash0: s25fl128s@0 {
- #address-cells = <1>;
- #size-cells = <1>;
- compatible = "spansion,s25fl128s", "jedec,spi-nor";
- spi-max-frequency = <50000000>;
- reg = <0>;
- };
-};
-
-Example showing the usage of two SPI NOR devices on bus A:
-
-&qspi2 {
- pinctrl-names = "default";
- pinctrl-0 = <&pinctrl_qspi2>;
- status = "okay";
-
- flash0: n25q256a@0 {
- #address-cells = <1>;
- #size-cells = <1>;
- compatible = "micron,n25q256a", "jedec,spi-nor";
- spi-max-frequency = <29000000>;
- reg = <0>;
- };
-
- flash1: n25q256a@1 {
- #address-cells = <1>;
- #size-cells = <1>;
- compatible = "micron,n25q256a", "jedec,spi-nor";
- spi-max-frequency = <29000000>;
- reg = <1>;
- };
-};
diff --git a/Documentation/devicetree/bindings/spi/spi-mt65xx.txt b/Documentation/devicetree/bindings/spi/spi-mt65xx.txt
index 9e43721fa7d6..4d0e4c15c4ea 100644
--- a/Documentation/devicetree/bindings/spi/spi-mt65xx.txt
+++ b/Documentation/devicetree/bindings/spi/spi-mt65xx.txt
@@ -12,7 +12,9 @@ Required properties:
- mediatek,mt8173-spi: for mt8173 platforms
- mediatek,mt8183-spi: for mt8183 platforms
- "mediatek,mt8192-spi", "mediatek,mt6765-spi": for mt8192 platforms
+ - "mediatek,mt8195-spi", "mediatek,mt6765-spi": for mt8195 platforms
- "mediatek,mt8516-spi", "mediatek,mt2712-spi": for mt8516 platforms
+ - "mediatek,mt6779-spi", "mediatek,mt6765-spi": for mt6779 platforms
- #address-cells: should be 1.
diff --git a/Documentation/devicetree/bindings/spi/spi-nxp-fspi.txt b/Documentation/devicetree/bindings/spi/spi-nxp-fspi.txt
index 7ac60d9fe357..8f34a7c7d8b8 100644
--- a/Documentation/devicetree/bindings/spi/spi-nxp-fspi.txt
+++ b/Documentation/devicetree/bindings/spi/spi-nxp-fspi.txt
@@ -4,6 +4,8 @@ Required properties:
- compatible : Should be "nxp,lx2160a-fspi"
"nxp,imx8qxp-fspi"
"nxp,imx8mm-fspi"
+ "nxp,imx8mp-fspi"
+ "nxp,imx8dxl-fspi"
- reg : First contains the register location and length,
Second contains the memory mapping address and length
diff --git a/Documentation/devicetree/bindings/spi/spi-slave-mt27xx.txt b/Documentation/devicetree/bindings/spi/spi-slave-mt27xx.txt
index c37e5a179b21..9192724540fd 100644
--- a/Documentation/devicetree/bindings/spi/spi-slave-mt27xx.txt
+++ b/Documentation/devicetree/bindings/spi/spi-slave-mt27xx.txt
@@ -3,6 +3,7 @@ Binding for MTK SPI Slave controller
Required properties:
- compatible: should be one of the following.
- mediatek,mt2712-spi-slave: for mt2712 platforms
+ - mediatek,mt8195-spi-slave: for mt8195 platforms
- reg: Address and length of the register set for the device.
- interrupts: Should contain spi interrupt.
- clocks: phandles to input clocks.
diff --git a/Documentation/spi/spi-summary.rst b/Documentation/spi/spi-summary.rst
index f1daffe10d78..d4239025461d 100644
--- a/Documentation/spi/spi-summary.rst
+++ b/Documentation/spi/spi-summary.rst
@@ -411,8 +411,11 @@ any more such messages.
duplex (one pointer is NULL) transfers;
+ optionally defining short delays after transfers ... using
- the spi_transfer.delay_usecs setting (this delay can be the
- only protocol effect, if the buffer length is zero);
+ the spi_transfer.delay.value setting (this delay can be the
+ only protocol effect, if the buffer length is zero) ...
+ when specifying this delay the default spi_transfer.delay.unit
+ is microseconds, however this can be adjusted to clock cycles
+ or nanoseconds if needed;
+ whether the chipselect becomes inactive after a transfer and
any delay ... by using the spi_transfer.cs_change flag;