From 73f1f26e2e4cda4e105476708961f0c3aff4515e Mon Sep 17 00:00:00 2001 From: Sinthu Raja Date: Sat, 22 Jun 2024 21:48:35 +0530 Subject: [PATCH] arm64: dts: ti: k3-am68-sk-som: Add support for OSPI flash AM68 SK has an OSPI NOR flash on its SOM connected to OSPI0 instance. Enable support for the same. Also, describe the OSPI flash partition information through the device tree, according to the offsets in the bootloader. Signed-off-by: Sinthu Raja Signed-off-by: Udit Kumar Link: https://lore.kernel.org/r/20240622161835.3610348-1-u-kumar1@ti.com Signed-off-by: Vignesh Raghavendra --- arch/arm64/boot/dts/ti/k3-am68-sk-som.dtsi | 81 ++++++++++++++++++++++ 1 file changed, 81 insertions(+) diff --git a/arch/arm64/boot/dts/ti/k3-am68-sk-som.dtsi b/arch/arm64/boot/dts/ti/k3-am68-sk-som.dtsi index 2ebb7daa822f..5c66e0ec6e82 100644 --- a/arch/arm64/boot/dts/ti/k3-am68-sk-som.dtsi +++ b/arch/arm64/boot/dts/ti/k3-am68-sk-som.dtsi @@ -131,6 +131,25 @@ }; }; +&wkup_pmx0 { + mcu_fss0_ospi0_pins_default: mcu-fss0-ospi0-pins { + bootph-all; + pinctrl-single,pins = < + J721S2_WKUP_IOPAD(0x000, PIN_OUTPUT, 0) /* (D19) MCU_OSPI0_CLK */ + J721S2_WKUP_IOPAD(0x02c, PIN_OUTPUT, 0) /* (F15) MCU_OSPI0_CSn0 */ + J721S2_WKUP_IOPAD(0x00c, PIN_INPUT, 0) /* (C19) MCU_OSPI0_D0 */ + J721S2_WKUP_IOPAD(0x010, PIN_INPUT, 0) /* (F16) MCU_OSPI0_D1 */ + J721S2_WKUP_IOPAD(0x014, PIN_INPUT, 0) /* (G15) MCU_OSPI0_D2 */ + J721S2_WKUP_IOPAD(0x018, PIN_INPUT, 0) /* (F18) MCU_OSPI0_D3 */ + J721S2_WKUP_IOPAD(0x01c, PIN_INPUT, 0) /* (E19) MCU_OSPI0_D4 */ + J721S2_WKUP_IOPAD(0x020, PIN_INPUT, 0) /* (G19) MCU_OSPI0_D5 */ + J721S2_WKUP_IOPAD(0x024, PIN_INPUT, 0) /* (F19) MCU_OSPI0_D6 */ + J721S2_WKUP_IOPAD(0x028, PIN_INPUT, 0) /* (F20) MCU_OSPI0_D7 */ + J721S2_WKUP_IOPAD(0x008, PIN_INPUT, 0) /* (E18) MCU_OSPI0_DQS */ + >; + }; +}; + &wkup_pmx2 { wkup_i2c0_pins_default: wkup-i2c0-default-pins { pinctrl-single,pins = < @@ -153,6 +172,68 @@ }; }; +&ospi0 { + status = "okay"; + pinctrl-names = "default"; + pinctrl-0 = <&mcu_fss0_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 { + bootph-all; + 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@740000 { + label = "ospi.env.backup"; + reg = <0x740000 0x40000>; + }; + + partition@800000 { + label = "ospi.rootfs"; + reg = <0x800000 0x37c0000>; + }; + + partition@3fc0000 { + bootph-pre-ram; + label = "ospi.phypattern"; + reg = <0x3fc0000 0x40000>; + }; + }; + }; +}; + &mailbox0_cluster0 { status = "okay"; interrupts = <436>; -- 2.25.1