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Message-Id: <1554777000-10542-5-git-send-email-masonccyang@mxic.com.tw> Date: Tue, 9 Apr 2019 10:30:00 +0800 From: Mason Yang <masonccyang@...c.com.tw> To: broonie@...nel.org, marek.vasut@...il.com, linux-kernel@...r.kernel.org, linux-spi@...r.kernel.org, bbrezillon@...nel.org, dwmw2@...radead.org, lee.jones@...aro.org, robh+dt@...nel.org, mark.rutland@....com, computersforpeace@...l.com, paul.burton@...s.com, stefan@...er.ch, christophe.kerello@...com, liang.yang@...ogic.com, geert@...ux-m68k.org, devicetree@...r.kernel.org, marcel.ziswiler@...adex.com, linux-mtd@...ts.infradead.org, richard@....at, miquel.raynal@...tlin.com Cc: juliensu@...c.com.tw, zhengxunli@...c.com.tw, Mason Yang <masonccyang@...c.com.tw> Subject: [PATCH v2 4/4] dt-bindings: mfd: Document Macronix MX25F0A controller bindings Document the bindings used by the Macronix MX25F0A MFD controller. Signed-off-by: Mason Yang <masonccyang@...c.com.tw> --- .../devicetree/bindings/mfd/mxic-mx25f0a.txt | 51 ++++++++++++++++++++++ 1 file changed, 51 insertions(+) create mode 100644 Documentation/devicetree/bindings/mfd/mxic-mx25f0a.txt diff --git a/Documentation/devicetree/bindings/mfd/mxic-mx25f0a.txt b/Documentation/devicetree/bindings/mfd/mxic-mx25f0a.txt new file mode 100644 index 0000000..7f3e0f8 --- /dev/null +++ b/Documentation/devicetree/bindings/mfd/mxic-mx25f0a.txt @@ -0,0 +1,51 @@ +Macronix MX25F0A MultiFunction Device Tree Bindings +---------------------------------------------------- + +MX25F0A is a MultiFunction Device with SPI and raw NAND, which +supports either spi host controller or raw nand controller. + +Required properties: +- compatible: should be "mxic,mx25f0a" +- #address-cells: should be 1 +- #size-cells: should be 0 +- reg: should contain 2 entries, one for the registers and one for the direct + mapping area in SPI mode. +- reg-names: should contain "regs" and "dirmap" +- interrupts: interrupt line connected to this MFD controller +- SPI controller driver: + - clock-names: should contain "ps_clk", "send_clk" and + "send_dly_clk" + - clocks: should contain 3 entries for the "ps_clk", "send_clk" + and "send_dly_clk" clocks + +- Raw nand controller driver. + - nand-ecc-mode = "soft"; + - nand-ecc-algo = "bch"; + +Example: + + mxic: mx25f0a@...30000 { + compatible = "mxic,mx25f0a"; + reg = <0x43c30000 0x10000>, <0xa0000000 0x4000000>; + reg-names = "regs", "dirmap"; + + /* spi */ + clocks = <&clkwizard 0>, <&clkwizard 1>, <&clkc 15>; + clock-names = "send_clk", "send_dly_clk", "ps_clk"; + #address-cells = <1>; + #size-cells = <0>; + + flash@0 { + compatible = "jedec,spi-nor"; + reg = <0>; + spi-max-frequency = <25000000>; + spi-tx-bus-width = <4>; + spi-rx-bus-width = <4>; + }; + + /* nand */ + nand-ecc-mode = "soft"; + nand-ecc-algo = "bch"; + nand-ecc-step-size = <512>; + nand-ecc-strength = <8>; + }; -- 1.9.1
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