diff options
Diffstat (limited to 'Documentation/devicetree/bindings/memory-controllers')
15 files changed, 723 insertions, 66 deletions
diff --git a/Documentation/devicetree/bindings/memory-controllers/exynos-srom.yaml b/Documentation/devicetree/bindings/memory-controllers/exynos-srom.yaml index 10a2d97e5f8b..1578514ec58d 100644 --- a/Documentation/devicetree/bindings/memory-controllers/exynos-srom.yaml +++ b/Documentation/devicetree/bindings/memory-controllers/exynos-srom.yaml @@ -38,51 +38,16 @@ properties: patternProperties: "^.*@[0-3],[a-f0-9]+$": type: object + $ref: mc-peripheral-props.yaml# additionalProperties: true - description: - The actual device nodes should be added as subnodes to the SROMc node. - These subnodes, in addition to regular device specification, should - contain the following properties, describing configuration - of the relevant SROM bank. properties: - reg: - description: - Bank number, base address (relative to start of the bank) and size - of the memory mapped for the device. Note that base address will be - typically 0 as this is the start of the bank. - maxItems: 1 - reg-io-width: enum: [1, 2] description: Data width in bytes (1 or 2). If omitted, default of 1 is used. - samsung,srom-page-mode: - description: - If page mode is set, 4 data page mode will be configured, - else normal (1 data) page mode will be set. - type: boolean - - samsung,srom-timing: - $ref: /schemas/types.yaml#/definitions/uint32-array - items: - minItems: 6 - maxItems: 6 - description: | - Array of 6 integers, specifying bank timings in the following order: - Tacp, Tcah, Tcoh, Tacc, Tcos, Tacs. - Each value is specified in cycles and has the following meaning - and valid range: - Tacp: Page mode access cycle at Page mode (0 - 15) - Tcah: Address holding time after CSn (0 - 15) - Tcoh: Chip selection hold on OEn (0 - 15) - Tacc: Access cycle (0 - 31, the actual time is N + 1) - Tcos: Chip selection set-up before OEn (0 - 15) - Tacs: Address set-up before CSn (0 - 15) - required: - - reg - samsung,srom-timing required: diff --git a/Documentation/devicetree/bindings/memory-controllers/fsl/fsl,ddr.yaml b/Documentation/devicetree/bindings/memory-controllers/fsl/fsl,ddr.yaml index 84f778a99546..e0786153eec7 100644 --- a/Documentation/devicetree/bindings/memory-controllers/fsl/fsl,ddr.yaml +++ b/Documentation/devicetree/bindings/memory-controllers/fsl/fsl,ddr.yaml @@ -40,6 +40,7 @@ properties: - fsl,p1021-memory-controller - fsl,p2020-memory-controller - fsl,qoriq-memory-controller + - nxp,imx9-memory-controller interrupts: maxItems: 1 @@ -51,13 +52,41 @@ properties: type: boolean reg: - maxItems: 1 + items: + - description: Controller register space + - description: Inject register space + minItems: 1 + + reg-names: + items: + - const: ctrl + - const: inject + minItems: 1 required: - compatible - interrupts - reg +allOf: + - if: + properties: + compatible: + contains: + enum: + - nxp,imx9-memory-controller + then: + properties: + reg: + minItems: 2 + reg-names: + minItems: 2 + else: + properties: + reg: + maxItems: 1 + reg-names: false + additionalProperties: false examples: diff --git a/Documentation/devicetree/bindings/memory-controllers/fsl/fsl,ifc.yaml b/Documentation/devicetree/bindings/memory-controllers/fsl/fsl,ifc.yaml index 3be1db30bf41..f7cf0f91c1c0 100644 --- a/Documentation/devicetree/bindings/memory-controllers/fsl/fsl,ifc.yaml +++ b/Documentation/devicetree/bindings/memory-controllers/fsl/fsl,ifc.yaml @@ -7,7 +7,7 @@ $schema: http://devicetree.org/meta-schemas/core.yaml# title: FSL/NXP Integrated Flash Controller maintainers: - - Li Yang <leoyang.li@nxp.com> + - Shawn Guo <shawnguo@kernel.org> description: | NXP's integrated flash controller (IFC) is an advanced version of the @@ -58,17 +58,39 @@ properties: access window as configured. patternProperties: - "^.*@[a-f0-9]+(,[a-f0-9]+)+$": + "^nand@[a-f0-9]+(,[a-f0-9]+)+$": type: object - description: | - Child device nodes describe the devices connected to IFC such as NOR (e.g. - cfi-flash) and NAND (fsl,ifc-nand). There might be board specific devices - like FPGAs, CPLDs, etc. + properties: + compatible: + const: fsl,ifc-nand + + reg: + maxItems: 1 + + "#address-cells": + const: 1 + + "#size-cells": + const: 1 + + patternProperties: + "^partition@[0-9a-f]+": + $ref: /schemas/mtd/partitions/partition.yaml# + deprecated: true required: - compatible - reg + additionalProperties: false + + "(flash|fpga|board-control|cpld)@[a-f0-9]+(,[a-f0-9]+)+$": + type: object + oneOf: + - $ref: /schemas/board/fsl,fpga-qixis.yaml# + - $ref: /schemas/mtd/mtd-physmap.yaml# + unevaluatedProperties: false + required: - compatible - reg diff --git a/Documentation/devicetree/bindings/memory-controllers/fsl/fsl,imx-weim.yaml b/Documentation/devicetree/bindings/memory-controllers/fsl/fsl,imx-weim.yaml index 3f40ca5b13f6..ce4ec94a561c 100644 --- a/Documentation/devicetree/bindings/memory-controllers/fsl/fsl,imx-weim.yaml +++ b/Documentation/devicetree/bindings/memory-controllers/fsl/fsl,imx-weim.yaml @@ -134,9 +134,8 @@ allOf: properties: fsl,weim-cs-timing: items: - items: - - description: CSxU - - description: CSxL + - description: CSxU + - description: CSxL - if: properties: compatible: @@ -151,10 +150,9 @@ allOf: properties: fsl,weim-cs-timing: items: - items: - - description: CSCRxU - - description: CSCRxL - - description: CSCRxA + - description: CSCRxU + - description: CSCRxL + - description: CSCRxA - if: properties: compatible: @@ -171,13 +169,12 @@ allOf: properties: fsl,weim-cs-timing: items: - items: - - description: CSxGCR1 - - description: CSxGCR2 - - description: CSxRCR1 - - description: CSxRCR2 - - description: CSxWCR1 - - description: CSxWCR2 + - description: CSxGCR1 + - description: CSxGCR2 + - description: CSxRCR1 + - description: CSxRCR2 + - description: CSxWCR1 + - description: CSxWCR2 additionalProperties: false diff --git a/Documentation/devicetree/bindings/memory-controllers/fsl/mmdc.yaml b/Documentation/devicetree/bindings/memory-controllers/fsl/mmdc.yaml index 71547eee9919..5447f1dddedf 100644 --- a/Documentation/devicetree/bindings/memory-controllers/fsl/mmdc.yaml +++ b/Documentation/devicetree/bindings/memory-controllers/fsl/mmdc.yaml @@ -7,7 +7,9 @@ $schema: http://devicetree.org/meta-schemas/core.yaml# title: Freescale Multi Mode DDR controller (MMDC) maintainers: - - Anson Huang <Anson.Huang@nxp.com> + - Shawn Guo <shawnguo@kernel.org> + - Sascha Hauer <s.hauer@pengutronix.de> + - Fabio Estevam <festevam@gmail.com> properties: compatible: diff --git a/Documentation/devicetree/bindings/memory-controllers/mc-peripheral-props.yaml b/Documentation/devicetree/bindings/memory-controllers/mc-peripheral-props.yaml index 00deeb09f87d..73a6dac946b7 100644 --- a/Documentation/devicetree/bindings/memory-controllers/mc-peripheral-props.yaml +++ b/Documentation/devicetree/bindings/memory-controllers/mc-peripheral-props.yaml @@ -36,6 +36,8 @@ allOf: - $ref: st,stm32-fmc2-ebi-props.yaml# - $ref: ingenic,nemc-peripherals.yaml# - $ref: intel,ixp4xx-expansion-peripheral-props.yaml# + - $ref: qcom,ebi2-peripheral-props.yaml# + - $ref: samsung,exynos4210-srom-peripheral-props.yaml# - $ref: ti,gpmc-child.yaml# - $ref: fsl/fsl,imx-weim-peripherals.yaml diff --git a/Documentation/devicetree/bindings/memory-controllers/mediatek,smi-common.yaml b/Documentation/devicetree/bindings/memory-controllers/mediatek,smi-common.yaml index 2f36ac23604c..0762e0ff66ef 100644 --- a/Documentation/devicetree/bindings/memory-controllers/mediatek,smi-common.yaml +++ b/Documentation/devicetree/bindings/memory-controllers/mediatek,smi-common.yaml @@ -33,6 +33,7 @@ properties: - mediatek,mt2712-smi-common - mediatek,mt6779-smi-common - mediatek,mt6795-smi-common + - mediatek,mt6893-smi-common - mediatek,mt8167-smi-common - mediatek,mt8173-smi-common - mediatek,mt8183-smi-common diff --git a/Documentation/devicetree/bindings/memory-controllers/mediatek,smi-larb.yaml b/Documentation/devicetree/bindings/memory-controllers/mediatek,smi-larb.yaml index 2381660b324c..2e7fac4b5094 100644 --- a/Documentation/devicetree/bindings/memory-controllers/mediatek,smi-larb.yaml +++ b/Documentation/devicetree/bindings/memory-controllers/mediatek,smi-larb.yaml @@ -21,6 +21,7 @@ properties: - mediatek,mt2712-smi-larb - mediatek,mt6779-smi-larb - mediatek,mt6795-smi-larb + - mediatek,mt6893-smi-larb - mediatek,mt8167-smi-larb - mediatek,mt8173-smi-larb - mediatek,mt8183-smi-larb diff --git a/Documentation/devicetree/bindings/memory-controllers/qca,ath79-ddr-controller.yaml b/Documentation/devicetree/bindings/memory-controllers/qca,ath79-ddr-controller.yaml index 0c511ab906bf..8b937f90a1fb 100644 --- a/Documentation/devicetree/bindings/memory-controllers/qca,ath79-ddr-controller.yaml +++ b/Documentation/devicetree/bindings/memory-controllers/qca,ath79-ddr-controller.yaml @@ -52,10 +52,3 @@ examples: #qca,ddr-wb-channel-cells = <1>; }; - - interrupt-controller { - // ... - qca,ddr-wb-channel-interrupts = <2>, <3>, <4>, <5>; - qca,ddr-wb-channels = <&ddr_ctrl 3>, <&ddr_ctrl 2>, - <&ddr_ctrl 0>, <&ddr_ctrl 1>; - }; diff --git a/Documentation/devicetree/bindings/memory-controllers/qcom,ebi2-peripheral-props.yaml b/Documentation/devicetree/bindings/memory-controllers/qcom,ebi2-peripheral-props.yaml new file mode 100644 index 000000000000..29f8c30e8a88 --- /dev/null +++ b/Documentation/devicetree/bindings/memory-controllers/qcom,ebi2-peripheral-props.yaml @@ -0,0 +1,91 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/memory-controllers/qcom,ebi2-peripheral-props.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Peripheral Properties for Qualcomm External Bus Interface 2 (EBI2) + +maintainers: + - Bjorn Andersson <andersson@kernel.org> + +properties: + # SLOW chip selects + qcom,xmem-recovery-cycles: + $ref: /schemas/types.yaml#/definitions/uint32 + description: > + The time the memory continues to drive the data bus after OE + is de-asserted, in order to avoid contention on the data bus. + They are inserted when reading one CS and switching to another + CS or read followed by write on the same CS. Minimum value is + actually 1, so a value of 0 will still yield 1 recovery cycle. + minimum: 0 + maximum: 15 + + qcom,xmem-write-hold-cycles: + $ref: /schemas/types.yaml#/definitions/uint32 + description: > + The extra cycles inserted after every write minimum 1. The + data out is driven from the time WE is asserted until CS is + asserted. With a hold of 1 (value = 0), the CS stays active + for 1 extra cycle, etc. + minimum: 0 + maximum: 15 + + qcom,xmem-write-delta-cycles: + $ref: /schemas/types.yaml#/definitions/uint32 + description: > + The initial latency for write cycles inserted for the first + write to a page or burst memory. + minimum: 0 + maximum: 255 + + qcom,xmem-read-delta-cycles: + $ref: /schemas/types.yaml#/definitions/uint32 + description: > + The initial latency for read cycles inserted for the first + read to a page or burst memory. + minimum: 0 + maximum: 255 + + qcom,xmem-write-wait-cycles: + $ref: /schemas/types.yaml#/definitions/uint32 + description: > + The number of wait cycles for every write access. + minimum: 0 + maximum: 15 + + qcom,xmem-read-wait-cycles: + $ref: /schemas/types.yaml#/definitions/uint32 + description: > + The number of wait cycles for every read access. + minimum: 0 + maximum: 15 + + + # FAST chip selects + qcom,xmem-address-hold-enable: + $ref: /schemas/types.yaml#/definitions/uint32 + description: > + Holds the address for an extra cycle to meet hold time + requirements with ADV assertion, when set to 1. + enum: [ 0, 1 ] + + qcom,xmem-adv-to-oe-recovery-cycles: + $ref: /schemas/types.yaml#/definitions/uint32 + description: > + The number of cycles elapsed before an OE assertion, with + respect to the cycle where ADV (address valid) is asserted. + minimum: 0 + maximum: 3 + + qcom,xmem-read-hold-cycles: + $ref: /schemas/types.yaml#/definitions/uint32 + description: > + The length in cycles of the first segment of a read transfer. + For a single read transfer this will be the time from CS + assertion to OE assertion. + minimum: 0 + maximum: 15 + +additionalProperties: true diff --git a/Documentation/devicetree/bindings/memory-controllers/qcom,ebi2.yaml b/Documentation/devicetree/bindings/memory-controllers/qcom,ebi2.yaml new file mode 100644 index 000000000000..423d7a75134f --- /dev/null +++ b/Documentation/devicetree/bindings/memory-controllers/qcom,ebi2.yaml @@ -0,0 +1,156 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/memory-controllers/qcom,ebi2.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Qualcomm External Bus Interface 2 (EBI2) + +description: | + The EBI2 contains two peripheral blocks: XMEM and LCDC. The XMEM handles any + external memory (such as NAND or other memory-mapped peripherals) whereas + LCDC handles LCD displays. + + As it says it connects devices to an external bus interface, meaning address + lines (up to 9 address lines so can only address 1KiB external memory space), + data lines (16 bits), OE (output enable), ADV (address valid, used on some + NOR flash memories), WE (write enable). This on top of 6 different chip selects + (CS0 thru CS5) so that in theory 6 different devices can be connected. + + Apparently this bus is clocked at 64MHz. It has dedicated pins on the package + and the bus can only come out on these pins, however if some of the pins are + unused they can be left unconnected or remuxed to be used as GPIO or in some + cases other orthogonal functions as well. + + Also CS1 and CS2 has -A and -B signals. Why they have that is unclear to me. + + The chip selects have the following memory range assignments. This region of + memory is referred to as "Chip Peripheral SS FPB0" and is 168MB big. + + Chip Select Physical address base + CS0 GPIO134 0x1a800000-0x1b000000 (8MB) + CS1 GPIO39 (A) / GPIO123 (B) 0x1b000000-0x1b800000 (8MB) + CS2 GPIO40 (A) / GPIO124 (B) 0x1b800000-0x1c000000 (8MB) + CS3 GPIO133 0x1d000000-0x25000000 (128 MB) + CS4 GPIO132 0x1c800000-0x1d000000 (8MB) + CS5 GPIO131 0x1c000000-0x1c800000 (8MB) + + The APQ8060 Qualcomm Application Processor User Guide, 80-N7150-14 Rev. A, + August 6, 2012 contains some incomplete documentation of the EBI2. + + FIXME: the manual mentions "write precharge cycles" and "precharge cycles". + We have not been able to figure out which bit fields these correspond to + in the hardware, or what valid values exist. The current hypothesis is that + this is something just used on the FAST chip selects and that the SLOW + chip selects are understood fully. There is also a "byte device enable" + flag somewhere for 8bit memories. + + FIXME: The chipselects have SLOW and FAST configuration registers. It's a bit + unclear what this means, if they are mutually exclusive or can be used + together, or if some chip selects are hardwired to be FAST and others are SLOW + by design. + + The XMEM registers are totally undocumented but could be partially decoded + because the Cypress AN49576 Antioch Westbridge apparently has suspiciously + similar register layout, see: http://www.cypress.com/file/105771/download + +maintainers: + - Bjorn Andersson <andersson@kernel.org> + +properties: + compatible: + enum: + - qcom,apq8060-ebi2 + - qcom,msm8660-ebi2 + + reg: + items: + - description: EBI2 config region + - description: XMEM config region + + reg-names: + items: + - const: ebi2 + - const: xmem + + ranges: true + + clocks: + items: + - description: EBI_2X clock + - description: EBI clock + + clock-names: + items: + - const: ebi2x + - const: ebi2 + + '#address-cells': + const: 2 + + '#size-cells': + const: 1 + +required: + - compatible + - reg + - reg-names + - ranges + - clocks + - clock-names + - '#address-cells' + - '#size-cells' + +patternProperties: + "^.*@[0-5],[0-9a-f]+$": + type: object + $ref: mc-peripheral-props.yaml# + additionalProperties: true + +additionalProperties: false + +examples: + - | + #include <dt-bindings/clock/qcom,gcc-msm8660.h> + #include <dt-bindings/interrupt-controller/irq.h> + #include <dt-bindings/gpio/gpio.h> + + external-bus@1a100000 { + compatible = "qcom,msm8660-ebi2"; + reg = <0x1a100000 0x1000>, <0x1a110000 0x1000>; + reg-names = "ebi2", "xmem"; + ranges = <0 0x0 0x1a800000 0x00800000>, + <1 0x0 0x1b000000 0x00800000>, + <2 0x0 0x1b800000 0x00800000>, + <3 0x0 0x1d000000 0x08000000>, + <4 0x0 0x1c800000 0x00800000>, + <5 0x0 0x1c000000 0x00800000>; + + clocks = <&gcc EBI2_2X_CLK>, <&gcc EBI2_CLK>; + clock-names = "ebi2x", "ebi2"; + + #address-cells = <2>; + #size-cells = <1>; + + ethernet@2,0 { + compatible = "smsc,lan9221", "smsc,lan9115"; + reg = <2 0x0 0x100>; + + interrupts-extended = <&pm8058_gpio 7 IRQ_TYPE_EDGE_FALLING>, + <&tlmm 29 IRQ_TYPE_EDGE_RISING>; + reset-gpios = <&tlmm 30 GPIO_ACTIVE_LOW>; + + phy-mode = "mii"; + reg-io-width = <2>; + smsc,force-external-phy; + smsc,irq-push-pull; + + /* SLOW chipselect config */ + qcom,xmem-recovery-cycles = <0>; + qcom,xmem-write-hold-cycles = <3>; + qcom,xmem-write-delta-cycles = <31>; + qcom,xmem-read-delta-cycles = <28>; + qcom,xmem-write-wait-cycles = <9>; + qcom,xmem-read-wait-cycles = <9>; + }; + }; diff --git a/Documentation/devicetree/bindings/memory-controllers/renesas,rpc-if.yaml b/Documentation/devicetree/bindings/memory-controllers/renesas,rpc-if.yaml index d7745dd53b51..4f4bc953e31a 100644 --- a/Documentation/devicetree/bindings/memory-controllers/renesas,rpc-if.yaml +++ b/Documentation/devicetree/bindings/memory-controllers/renesas,rpc-if.yaml @@ -67,7 +67,9 @@ properties: - const: dirmap - const: wbuf - clocks: true + clocks: + minItems: 1 + maxItems: 2 interrupts: maxItems: 1 diff --git a/Documentation/devicetree/bindings/memory-controllers/renesas,rzg3e-xspi.yaml b/Documentation/devicetree/bindings/memory-controllers/renesas,rzg3e-xspi.yaml new file mode 100644 index 000000000000..2bfe63ec62dc --- /dev/null +++ b/Documentation/devicetree/bindings/memory-controllers/renesas,rzg3e-xspi.yaml @@ -0,0 +1,135 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/memory-controllers/renesas,rzg3e-xspi.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Renesas Expanded Serial Peripheral Interface (xSPI) + +maintainers: + - Biju Das <biju.das.jz@bp.renesas.com> + +description: | + Renesas xSPI allows a SPI flash connected to the SoC to be accessed via + the memory-mapping or the manual command mode. + + The flash chip itself should be represented by a subnode of the XSPI node. + The flash interface is selected based on the "compatible" property of this + subnode: + - "jedec,spi-nor"; + +allOf: + - $ref: /schemas/spi/spi-controller.yaml# + +properties: + compatible: + const: renesas,r9a09g047-xspi # RZ/G3E + + reg: + items: + - description: xSPI registers + - description: direct mapping area + + reg-names: + items: + - const: regs + - const: dirmap + + interrupts: + items: + - description: Interrupt pulse signal by factors excluding errors + - description: Interrupt pulse signal by error factors + + interrupt-names: + items: + - const: pulse + - const: err_pulse + + clocks: + items: + - description: AHB clock + - description: AXI clock + - description: SPI clock + - description: Double speed SPI clock + + clock-names: + items: + - const: ahb + - const: axi + - const: spi + - const: spix2 + + power-domains: + maxItems: 1 + + resets: + items: + - description: Hardware reset + - description: AXI reset + + reset-names: + items: + - const: hresetn + - const: aresetn + + renesas,xspi-cs-addr-sys: + $ref: /schemas/types.yaml#/definitions/phandle + description: | + Phandle to the system controller (sys) that allows to configure + xSPI CS0 and CS1 addresses. + +patternProperties: + "flash@[0-9a-f]+$": + type: object + additionalProperties: true + + properties: + compatible: + contains: + const: jedec,spi-nor + +required: + - compatible + - reg + - reg-names + - interrupts + - interrupt-names + - clocks + - clock-names + - power-domains + - resets + - reset-names + - '#address-cells' + - '#size-cells' + +unevaluatedProperties: false + +examples: + - | + #include <dt-bindings/interrupt-controller/arm-gic.h> + #include <dt-bindings/clock/renesas,r9a09g047-cpg.h> + + spi@11030000 { + compatible = "renesas,r9a09g047-xspi"; + reg = <0x11030000 0x10000>, <0x20000000 0x10000000>; + reg-names = "regs", "dirmap"; + interrupts = <GIC_SPI 228 IRQ_TYPE_EDGE_RISING>, + <GIC_SPI 229 IRQ_TYPE_EDGE_RISING>; + interrupt-names = "pulse", "err_pulse"; + clocks = <&cpg CPG_MOD 0x9f>, <&cpg CPG_MOD 0xa0>, + <&cpg CPG_CORE 9>, <&cpg CPG_MOD 0xa1>; + clock-names = "ahb", "axi", "spi", "spix2"; + power-domains = <&cpg>; + resets = <&cpg 0xa3>, <&cpg 0xa4>; + reset-names = "hresetn", "aresetn"; + #address-cells = <1>; + #size-cells = <0>; + + flash@0 { + compatible = "jedec,spi-nor"; + reg = <0>; + spi-max-frequency = <40000000>; + spi-tx-bus-width = <1>; + spi-rx-bus-width = <1>; + }; + }; diff --git a/Documentation/devicetree/bindings/memory-controllers/samsung,exynos4210-srom-peripheral-props.yaml b/Documentation/devicetree/bindings/memory-controllers/samsung,exynos4210-srom-peripheral-props.yaml new file mode 100644 index 000000000000..c474f90846e5 --- /dev/null +++ b/Documentation/devicetree/bindings/memory-controllers/samsung,exynos4210-srom-peripheral-props.yaml @@ -0,0 +1,35 @@ +# SPDX-License-Identifier: GPL-2.0 +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/memory-controllers/samsung,exynos4210-srom-peripheral-props.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Peripheral Properties for Samsung Exynos SoC SROM Controller + +maintainers: + - Krzysztof Kozlowski <krzk@kernel.org> + +properties: + samsung,srom-page-mode: + description: + If page mode is set, 4 data page mode will be configured, + else normal (1 data) page mode will be set. + type: boolean + + samsung,srom-timing: + $ref: /schemas/types.yaml#/definitions/uint32-array + minItems: 6 + maxItems: 6 + description: | + Array of 6 integers, specifying bank timings in the following order: + Tacp, Tcah, Tcoh, Tacc, Tcos, Tacs. + Each value is specified in cycles and has the following meaning + and valid range: + Tacp: Page mode access cycle at Page mode (0 - 15) + Tcah: Address holding time after CSn (0 - 15) + Tcoh: Chip selection hold on OEn (0 - 15) + Tacc: Access cycle (0 - 31, the actual time is N + 1) + Tcos: Chip selection set-up before OEn (0 - 15) + Tacs: Address set-up before CSn (0 - 15) + +additionalProperties: true diff --git a/Documentation/devicetree/bindings/memory-controllers/st,stm32mp25-omm.yaml b/Documentation/devicetree/bindings/memory-controllers/st,stm32mp25-omm.yaml new file mode 100644 index 000000000000..344878db8818 --- /dev/null +++ b/Documentation/devicetree/bindings/memory-controllers/st,stm32mp25-omm.yaml @@ -0,0 +1,226 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/memory-controllers/st,stm32mp25-omm.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: STM32 Octo Memory Manager (OMM) + +maintainers: + - Patrice Chotard <patrice.chotard@foss.st.com> + +description: | + The STM32 Octo Memory Manager is a low-level interface that enables an + efficient OCTOSPI pin assignment with a full I/O matrix (before alternate + function map) and multiplex of single/dual/quad/octal SPI interfaces over + the same bus. It Supports up to: + - Two single/dual/quad/octal SPI interfaces + - Two ports for pin assignment + +properties: + compatible: + const: st,stm32mp25-omm + + "#address-cells": + const: 2 + + "#size-cells": + const: 1 + + ranges: + description: | + Reflects the memory layout per OSPI instance. + Format: + <chip-select> 0 <registers base address> <size> + minItems: 2 + maxItems: 2 + + reg: + items: + - description: OMM registers + - description: OMM memory map area + + reg-names: + items: + - const: regs + - const: memory_map + + memory-region: + description: + Memory region shared between the 2 OCTOSPI instance. + One or two phandle to a node describing a memory mapped region + depending of child number. + minItems: 1 + maxItems: 2 + + memory-region-names: + description: + Identify to which OSPI instance the memory region belongs to. + items: + enum: [ospi1, ospi2] + minItems: 1 + maxItems: 2 + + clocks: + maxItems: 3 + + clock-names: + items: + - const: omm + - const: ospi1 + - const: ospi2 + + resets: + maxItems: 3 + + reset-names: + items: + - const: omm + - const: ospi1 + - const: ospi2 + + access-controllers: + maxItems: 1 + + power-domains: + maxItems: 1 + + st,syscfg-amcr: + $ref: /schemas/types.yaml#/definitions/phandle-array + description: | + The Address Mapping Control Register (AMCR) is used to split the 256MB + memory map area shared between the 2 OSPI instance. The Octo Memory + Manager sets the AMCR depending of the memory-region configuration. + The memory split bitmask description is: + - 000: OCTOSPI1 (256 Mbytes), OCTOSPI2 unmapped + - 001: OCTOSPI1 (192 Mbytes), OCTOSPI2 (64 Mbytes) + - 010: OCTOSPI1 (128 Mbytes), OCTOSPI2 (128 Mbytes) + - 011: OCTOSPI1 (64 Mbytes), OCTOSPI2 (192 Mbytes) + - 1xx: OCTOSPI1 unmapped, OCTOSPI2 (256 Mbytes) + items: + - items: + - description: phandle to syscfg + - description: register offset within syscfg + - description: register bitmask for memory split + + st,omm-req2ack-ns: + description: + In multiplexed mode (MUXEN = 1), this field defines the time in + nanoseconds between two transactions. + default: 0 + + st,omm-cssel-ovr: + $ref: /schemas/types.yaml#/definitions/uint32 + description: | + Configure the chip select selector override for the 2 OCTOSPIs. + - 0: OCTOSPI1 chip select send to NCS1 OCTOSPI2 chip select send to NCS1 + - 1: OCTOSPI1 chip select send to NCS2 OCTOSPI2 chip select send to NCS1 + - 2: OCTOSPI1 chip select send to NCS1 OCTOSPI2 chip select send to NCS2 + - 3: OCTOSPI1 chip select send to NCS2 OCTOSPI2 chip select send to NCS2 + minimum: 0 + maximum: 3 + default: 0 + + st,omm-mux: + $ref: /schemas/types.yaml#/definitions/uint32 + description: | + Configure the muxing between the 2 OCTOSPIs busses and the 2 output ports. + - 0: direct mode + - 1: mux OCTOSPI1 and OCTOSPI2 to port 1 + - 2: swapped mode + - 3: mux OCTOSPI1 and OCTOSPI2 to port 2 + minimum: 0 + maximum: 3 + default: 0 + +patternProperties: + ^spi@[0-9]: + type: object + $ref: /schemas/spi/st,stm32mp25-ospi.yaml# + description: Required spi child node + +required: + - compatible + - reg + - "#address-cells" + - "#size-cells" + - clocks + - clock-names + - resets + - reset-names + - st,syscfg-amcr + - ranges + +additionalProperties: false + +examples: + - | + #include <dt-bindings/clock/st,stm32mp25-rcc.h> + #include <dt-bindings/interrupt-controller/arm-gic.h> + #include <dt-bindings/reset/st,stm32mp25-rcc.h> + ommanager@40500000 { + compatible = "st,stm32mp25-omm"; + reg = <0x40500000 0x400>, <0x60000000 0x10000000>; + reg-names = "regs", "memory_map"; + ranges = <0 0 0x40430000 0x400>, + <1 0 0x40440000 0x400>; + memory-region = <&mm_ospi1>, <&mm_ospi2>; + memory-region-names = "ospi1", "ospi2"; + pinctrl-0 = <&ospi_port1_clk_pins_a + &ospi_port1_io03_pins_a + &ospi_port1_cs0_pins_a>; + pinctrl-1 = <&ospi_port1_clk_sleep_pins_a + &ospi_port1_io03_sleep_pins_a + &ospi_port1_cs0_sleep_pins_a>; + pinctrl-names = "default", "sleep"; + clocks = <&rcc CK_BUS_OSPIIOM>, + <&scmi_clk CK_SCMI_OSPI1>, + <&scmi_clk CK_SCMI_OSPI2>; + clock-names = "omm", "ospi1", "ospi2"; + resets = <&rcc OSPIIOM_R>, + <&scmi_reset RST_SCMI_OSPI1>, + <&scmi_reset RST_SCMI_OSPI2>; + reset-names = "omm", "ospi1", "ospi2"; + access-controllers = <&rifsc 111>; + power-domains = <&CLUSTER_PD>; + #address-cells = <2>; + #size-cells = <1>; + st,syscfg-amcr = <&syscfg 0x2c00 0x7>; + st,omm-req2ack-ns = <0>; + st,omm-mux = <0>; + st,omm-cssel-ovr = <0>; + + spi@0 { + compatible = "st,stm32mp25-ospi"; + reg = <0 0 0x400>; + memory-region = <&mm_ospi1>; + interrupts = <GIC_SPI 163 IRQ_TYPE_LEVEL_HIGH>; + dmas = <&hpdma 2 0x62 0x00003121 0x0>, + <&hpdma 2 0x42 0x00003112 0x0>; + dma-names = "tx", "rx"; + clocks = <&scmi_clk CK_SCMI_OSPI1>; + resets = <&scmi_reset RST_SCMI_OSPI1>, <&scmi_reset RST_SCMI_OSPI1DLL>; + access-controllers = <&rifsc 74>; + power-domains = <&CLUSTER_PD>; + #address-cells = <1>; + #size-cells = <0>; + st,syscfg-dlyb = <&syscfg 0x1000>; + }; + + spi@1 { + compatible = "st,stm32mp25-ospi"; + reg = <1 0 0x400>; + memory-region = <&mm_ospi1>; + interrupts = <GIC_SPI 164 IRQ_TYPE_LEVEL_HIGH>; + dmas = <&hpdma 3 0x62 0x00003121 0x0>, + <&hpdma 3 0x42 0x00003112 0x0>; + dma-names = "tx", "rx"; + clocks = <&scmi_clk CK_KER_OSPI2>; + resets = <&scmi_reset RST_SCMI_OSPI2>, <&scmi_reset RST_SCMI_OSPI1DLL>; + access-controllers = <&rifsc 75>; + power-domains = <&CLUSTER_PD>; + #address-cells = <1>; + #size-cells = <0>; + st,syscfg-dlyb = <&syscfg 0x1000>; + }; + }; |