From 1a1066f553df1777ffa5ede050457e41972f34f4 Mon Sep 17 00:00:00 2001 From: Paresh Bhagat Date: Wed, 13 Aug 2025 14:33:00 +0530 Subject: [PATCH] arm64: dts: ti: k3-am62d2-evm: Add support for OSPI flash AM62D2 EVM has S28HS512T 64 MiB Octal SPI NOR flash connected to the OSPI interface. Add support for the flash and describe the partition information as per bootloader. Signed-off-by: Paresh Bhagat Reviewed-by: Santhosh Kumar K Link: https://patch.msgid.link/20250813090300.733295-1-p-bhagat@ti.com Signed-off-by: Nishanth Menon --- arch/arm64/boot/dts/ti/k3-am62d2-evm.dts | 86 ++++++++++++++++++++++++ 1 file changed, 86 insertions(+) diff --git a/arch/arm64/boot/dts/ti/k3-am62d2-evm.dts b/arch/arm64/boot/dts/ti/k3-am62d2-evm.dts index 6cb2339869b55..83af889e790ae 100644 --- a/arch/arm64/boot/dts/ti/k3-am62d2-evm.dts +++ b/arch/arm64/boot/dts/ti/k3-am62d2-evm.dts @@ -25,6 +25,7 @@ rtc0 = &wkup_rtc0; ethernet0 = &cpsw_port1; ethernet1 = &cpsw_port2; + spi0 = &ospi0; }; chosen { @@ -349,6 +350,26 @@ AM62DX_IOPAD(0x0258, PIN_OUTPUT, 0) /* (D19) USB1_DRVVBUS */ >; }; + + ospi0_pins_default: ospi0-default-pins { + pinctrl-single,pins = < + AM62DX_IOPAD(0x0000, PIN_OUTPUT, 0) /* (L22) OSPI0_CLK */ + AM62DX_IOPAD(0x002c, PIN_OUTPUT, 0) /* (H21) OSPI0_CSn0 */ + AM62DX_IOPAD(0x0030, PIN_OUTPUT, 0) /* (G19) OSPI0_CSn1 */ + AM62DX_IOPAD(0x0034, PIN_OUTPUT, 0) /* (K20) OSPI0_CSn2 */ + AM62DX_IOPAD(0x0038, PIN_OUTPUT, 0) /* (G20) OSPI0_CSn3 */ + AM62DX_IOPAD(0x000c, PIN_INPUT, 0) /* (J21) OSPI0_D0 */ + AM62DX_IOPAD(0x0010, PIN_INPUT, 0) /* (J18) OSPI0_D1 */ + AM62DX_IOPAD(0x0014, PIN_INPUT, 0) /* (J19) OSPI0_D2 */ + AM62DX_IOPAD(0x0018, PIN_INPUT, 0) /* (H18) OSPI0_D3 */ + AM62DX_IOPAD(0x001c, PIN_INPUT, 0) /* (K21) OSPI0_D4 */ + AM62DX_IOPAD(0x0020, PIN_INPUT, 0) /* (H19) OSPI0_D5 */ + AM62DX_IOPAD(0x0024, PIN_INPUT, 0) /* (J20) OSPI0_D6 */ + AM62DX_IOPAD(0x0028, PIN_INPUT, 0) /* (J22) OSPI0_D7 */ + AM62DX_IOPAD(0x0008, PIN_INPUT, 0) /* (L21) OSPI0_DQS */ + >; + bootph-all; + }; }; &mcu_gpio0 { @@ -548,6 +569,71 @@ }; }; +&fss { + status = "okay"; +}; + +&ospi0 { + pinctrl-names = "default"; + pinctrl-0 = <&ospi0_pins_default>; + status = "okay"; + + 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>; + bootph-all; + }; + }; + }; +}; + &wkup_r5fss0_core0 { bootph-pre-ram; }; -- 2.47.3