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Date: Tue, 23 Apr 2019 11:36:37 +0530 From: Vignesh Raghavendra <vigneshr@...com> To: Vignesh Raghavendra <vigneshr@...com>, David Woodhouse <dwmw2@...radead.org>, Brian Norris <computersforpeace@...il.com>, Boris Brezillon <bbrezillon@...nel.org>, Marek Vasut <marek.vasut@...il.com>, Richard Weinberger <richard@....at>, Rob Herring <robh+dt@...nel.org> CC: <linux-mtd@...ts.infradead.org>, Tudor Ambarus <Tudor.Ambarus@...rochip.com>, Miquel Raynal <miquel.raynal@...tlin.com>, Joakim Tjernlund <Joakim.Tjernlund@...inera.com>, <devicetree@...r.kernel.org>, Sergei Shtylyov <sergei.shtylyov@...entembedded.com>, Mason Yang <masonccyang@...c.com.tw>, <linux-arm-kernel@...ts.infradead.org>, <nsekhar@...com>, <linux-kernel@...r.kernel.org> Subject: [PATCH v3 4/5] dt-bindings: mtd: Add bindings for TI's AM654 HyperBus memory controller Add binding documentation for TI's HyperBus memory controller present on AM654 SoC. Signed-off-by: Vignesh Raghavendra <vigneshr@...com> --- .../devicetree/bindings/mtd/ti,am654-hbmc.txt | 31 +++++++++++++++++++ MAINTAINERS | 1 + 2 files changed, 32 insertions(+) create mode 100644 Documentation/devicetree/bindings/mtd/ti,am654-hbmc.txt diff --git a/Documentation/devicetree/bindings/mtd/ti,am654-hbmc.txt b/Documentation/devicetree/bindings/mtd/ti,am654-hbmc.txt new file mode 100644 index 000000000000..00888482df25 --- /dev/null +++ b/Documentation/devicetree/bindings/mtd/ti,am654-hbmc.txt @@ -0,0 +1,31 @@ +Bindings for HyperBus Memory Controller (HBMC) on TI's K3 family of SoCs + +Required properties: +- compatible : "ti,am654-hbmc" for AM654 SoC +- reg : Two entries: + First entry pointed to the register space of HBMC controller + Second entry pointing to the memory map region dedicated for + MMIO access to attached flash devices +- ranges : Address range allocated for each chipselect in the MMIO space + +Optional properties: +- mux-controls: phandle to the multiplexer that controls selection of + HBMC vs OSPI. Mux state of 1 indicates HBMC is selected. + +Example: + hbmc: hbmc@...34000 { + compatible = "ti,am654-hbmc"; + reg = <0x0 0x47034000 0x0 0x100>, + <0x5 0x00000000 0x1 0x0000000>; + power-domains = <&k3_pds 55>; + #address-cells = <1>; + #size-cells = <1>; + ranges = <0x0 0x5 0x00000000 0x4000000>, /* CS0 - 64MB */ + <0x1 0x5 0x04000000 0x4000000>; /* CS1 - 64MB + + /* Slave flash node */ + flash@0{ + compatible = "cypress,hyperflash"; + reg = <0x0 0x4000000>; + }; + }; diff --git a/MAINTAINERS b/MAINTAINERS index 7aa1b3454a89..07455035fca9 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -7249,6 +7249,7 @@ S: Supported F: drivers/mtd/hyperbus/ F: include/linux/mtd/hyperbus.h F: Documentation/devicetree/bindings/mtd/cypress,hyperbus.txt +F: Documentation/devicetree/bindings/mtd/ti,am654-hbmc.txt HYPERVISOR VIRTUAL CONSOLE DRIVER L: linuxppc-dev@...ts.ozlabs.org -- 2.21.0
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