The AM62x-SK EVM has an on-board OSPI Flash chip (Cypress S28HS512T). Add the nodes in DT required to load the appropriate drivers to start using the OSPI Flash on this board.
Signed-off-by: Dhruva Gole <[email protected]> --- arch/arm/dts/k3-am625-r5-sk.dts | 5 ++ arch/arm/dts/k3-am625-sk-u-boot.dtsi | 24 +++++++++ arch/arm/dts/k3-am625-sk.dts | 77 ++++++++++++++++++++++++++++ 3 files changed, 106 insertions(+) diff --git a/arch/arm/dts/k3-am625-r5-sk.dts b/arch/arm/dts/k3-am625-r5-sk.dts index 6d696e720de6..d39b334ed032 100644 --- a/arch/arm/dts/k3-am625-r5-sk.dts +++ b/arch/arm/dts/k3-am625-r5-sk.dts @@ -155,3 +155,8 @@ status = "okay"; u-boot,dm-spl; }; + +&ospi0 { + reg = <0x00 0x0fc40000 0x00 0x100>, + <0x00 0x60000000 0x00 0x08000000>; +}; diff --git a/arch/arm/dts/k3-am625-sk-u-boot.dtsi b/arch/arm/dts/k3-am625-sk-u-boot.dtsi index 159fa36bbe9f..92788bae3e09 100644 --- a/arch/arm/dts/k3-am625-sk-u-boot.dtsi +++ b/arch/arm/dts/k3-am625-sk-u-boot.dtsi @@ -102,3 +102,27 @@ &main_mmc1_pins_default { u-boot,dm-spl; }; + +&fss { + u-boot,dm-spl; +}; + +&ospi0_pins_default { + u-boot,dm-spl; +}; + +&ospi0 { + u-boot,dm-spl; + + flash@0 { + u-boot,dm-spl; + + partitions { + u-boot,dm-spl; + + partition@3fc0000 { + u-boot,dm-spl; + }; + }; + }; +}; diff --git a/arch/arm/dts/k3-am625-sk.dts b/arch/arm/dts/k3-am625-sk.dts index 76b06ea23953..5d4b2fddafaa 100644 --- a/arch/arm/dts/k3-am625-sk.dts +++ b/arch/arm/dts/k3-am625-sk.dts @@ -19,6 +19,7 @@ aliases { serial2 = &main_uart0; mmc1 = &sdhci1; + spi0 = &ospi0; }; chosen { @@ -77,6 +78,23 @@ AM62X_IOPAD(0x240, PIN_INPUT, 0) /* (D17) MMC1_SDCD */ >; }; + + ospi0_pins_default: ospi0-pins-default { + pinctrl-single,pins = < + AM62X_IOPAD(0x000, PIN_OUTPUT, 0) /* (H24) OSPI0_CLK */ + AM62X_IOPAD(0x02c, PIN_OUTPUT, 0) /* (F23) OSPI0_CSn0 */ + AM62X_IOPAD(0x00c, PIN_INPUT, 0) /* (E25) OSPI0_D0 */ + + AM62X_IOPAD(0x010, PIN_INPUT, 0) /* (G24) OSPI0_D1 */ + AM62X_IOPAD(0x014, PIN_INPUT, 0) /* (F25) OSPI0_D2 */ + AM62X_IOPAD(0x018, PIN_INPUT, 0) /* (F24) OSPI0_D3 */ + AM62X_IOPAD(0x01c, PIN_INPUT, 0) /* (J23) OSPI0_D4 */ + AM62X_IOPAD(0x020, PIN_INPUT, 0) /* (J25) OSPI0_D5 */ + AM62X_IOPAD(0x024, PIN_INPUT, 0) /* (H25) OSPI0_D6 */ + AM62X_IOPAD(0x028, PIN_INPUT, 0) /* (J22) OSPI0_D7 */ + AM62X_IOPAD(0x008, PIN_INPUT, 0) /* (J24) OSPI0_DQS */ + >; + }; }; &wkup_uart0 { @@ -148,3 +166,62 @@ ti,driver-strength-ohm = <50>; disable-wp; }; + +&ospi0 { + pinctrl-names = "default"; + pinctrl-0 = <&ospi0_pins_default>; + + flash@0{ + compatible = "jedec,spi-nor"; + reg = <0x0>; + spi-tx-bus-width = <8>; + spi-rx-bus-width = <8>; + spi-max-frequency = <25000000>; + cdns,tshsl-ns = <60>; + cdns,tsd2d-ns = <60>; + cdns,tchsh-ns = <60>; + cdns,tslch-ns = <60>; + cdns,read-delay = <4>; + + partitions { + compatible = "fixed-partitions"; + #address-cells = <1>; + #size-cells = <1>; + + partition@0 { + label = "ospi.tiboot3"; + reg = <0x0 0x80000>; + }; + + partition@80000 { + label = "ospi.tispl"; + reg = <0x80000 0x200000>; + }; + + partition@280000 { + label = "ospi.u-boot"; + reg = <0x280000 0x400000>; + }; + + partition@680000 { + label = "ospi.env"; + reg = <0x680000 0x40000>; + }; + + partition@6c0000 { + label = "ospi.env.backup"; + reg = <0x6c0000 0x40000>; + }; + + partition@800000 { + label = "ospi.rootfs"; + reg = <0x800000 0x37c0000>; + }; + + partition@3fc0000 { + label = "ospi.phypattern"; + reg = <0x3fc0000 0x40000>; + }; + }; + }; +}; -- 2.25.1
