Introduce k3-am62-lp-sk-nand.dtso overlay file to support the X8 NAND EXPANSION BOARD card (PROC143E1) for AM62x LP SK board. NAND has partitions for different boot components as below: 0x000000000000-0x000000200000 : "NAND.tiboot3 0x000000200000-0x000000400000 : "NAND.tispl 0x000000400000-0x000000600000 : "NAND.tiboot3.backup 0x000000600000-0x000000a00000 : "NAND.u-boot 0x000000a00000-0x000000a40000 : "NAND.u-boot-env 0x000000a40000-0x000000a80000 : "NAND.u-boot-env.backup 0x000000a80000-0x000040000000 : "NAND.file-system Disable mcasp1 node in DT to avoid pinmux conflict. Update Makefile to include k3-am62-lp-sk-nand.dtso. Signed-off-by: Nitin Yadav <n-yadav@xxxxxx> --- arch/arm64/boot/dts/ti/Makefile | 2 + .../arm64/boot/dts/ti/k3-am62-lp-sk-nand.dtso | 119 ++++++++++++++++++ 2 files changed, 121 insertions(+) create mode 100644 arch/arm64/boot/dts/ti/k3-am62-lp-sk-nand.dtso diff --git a/arch/arm64/boot/dts/ti/Makefile b/arch/arm64/boot/dts/ti/Makefile index b3516419f95d..9aea8bdea44f 100644 --- a/arch/arm64/boot/dts/ti/Makefile +++ b/arch/arm64/boot/dts/ti/Makefile @@ -19,6 +19,8 @@ dtb-$(CONFIG_ARCH_K3) += k3-am625-verdin-wifi-dahlia.dtb dtb-$(CONFIG_ARCH_K3) += k3-am625-verdin-wifi-dev.dtb dtb-$(CONFIG_ARCH_K3) += k3-am625-verdin-wifi-yavia.dtb dtb-$(CONFIG_ARCH_K3) += k3-am62-lp-sk.dtb +k3-am62-lp-sk-nand-dtbs := k3-am62-lp-sk.dtb k3-am62-lp-sk-nand.dtbo +dtb-$(CONFIG_ARCH_K3) += k3-am62-lp-sk-nand.dtb dtb-$(CONFIG_ARCH_K3) += k3-am62x-sk-hdmi-audio.dtbo # Boards with AM62Ax SoC diff --git a/arch/arm64/boot/dts/ti/k3-am62-lp-sk-nand.dtso b/arch/arm64/boot/dts/ti/k3-am62-lp-sk-nand.dtso new file mode 100644 index 000000000000..0f4e26db534b --- /dev/null +++ b/arch/arm64/boot/dts/ti/k3-am62-lp-sk-nand.dtso @@ -0,0 +1,119 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (C) 2022-2023 Texas Instruments Incorporated - https://www.ti.com/ + */ + +/dts-v1/; +/plugin/; + + +#include <dt-bindings/gpio/gpio.h> +#include <dt-bindings/interrupt-controller/irq.h> + +#include "k3-pinctrl.h" + +&mcasp1 { + status = "disabled"; +}; + +&main_pmx0 { + gpmc0_pins_default: gpmc0-pins-default { + pinctrl-single,pins = < + AM62X_IOPAD(0x003c, PIN_INPUT, 0) /* (M25) GPMC0_AD0 */ + AM62X_IOPAD(0x0040, PIN_INPUT, 0) /* (N23) GPMC0_AD1 */ + AM62X_IOPAD(0x0044, PIN_INPUT, 0) /* (N24) GPMC0_AD2 */ + AM62X_IOPAD(0x0048, PIN_INPUT, 0) /* (N25) GPMC0_AD3 */ + AM62X_IOPAD(0x004c, PIN_INPUT, 0) /* (P24) GPMC0_AD4 */ + AM62X_IOPAD(0x0050, PIN_INPUT, 0) /* (P22) GPMC0_AD5 */ + AM62X_IOPAD(0x0054, PIN_INPUT, 0) /* (P21) GPMC0_AD6 */ + AM62X_IOPAD(0x0058, PIN_INPUT, 0) /* (R23) GPMC0_AD7 */ + AM62X_IOPAD(0x0084, PIN_OUTPUT, 0) /* (L23) GPMC0_ADVn_ALE */ + AM62X_IOPAD(0x0088, PIN_OUTPUT, 0) /* (L24) GPMC0_OEn_REn */ + AM62X_IOPAD(0x008c, PIN_OUTPUT, 0) /* (L25) GPMC0_WEn */ + AM62X_IOPAD(0x0090, PIN_OUTPUT, 0) /* (M24) GPMC0_BE0n_CLE */ + AM62X_IOPAD(0x00a8, PIN_OUTPUT, 0) /* (M21) GPMC0_CSn0 */ + AM62X_IOPAD(0x0098, PIN_INPUT, 0) /* (U23) GPMC0_WAIT0 */ + >; + }; +}; + +&gpmc0 { + status = "okay"; + pinctrl-names = "default"; + pinctrl-0 = <&gpmc0_pins_default>; + ranges = <0 0 0x00 0x51000000 0x01000000>; /* CS0 space. Min partition = 16MB */ + #address-cells = <2>; + #size-cells = <1>; + + nand0_0: nand@0,0 { + compatible = "ti,am64-nand"; + reg = <0 0 64>; /* device IO registers */ + interrupt-parent = <&gpmc0>; + interrupts = <0 IRQ_TYPE_NONE>, /* fifoevent */ + <1 IRQ_TYPE_NONE>; /* termcount */ + rb-gpios = <&gpmc0 0 GPIO_ACTIVE_HIGH>; /* gpmc_wait0 */ + ti,nand-xfer-type = "prefetch-polled"; + ti,nand-ecc-opt = "bch8"; /* BCH8: Bootrom limitation */ + ti,elm-id = <&elm0>; + nand-bus-width = <8>; + gpmc,device-width = <1>; + gpmc,sync-clk-ps = <0>; + gpmc,cs-on-ns = <0>; + gpmc,cs-rd-off-ns = <40>; + gpmc,cs-wr-off-ns = <40>; + gpmc,adv-on-ns = <0>; + gpmc,adv-rd-off-ns = <25>; + gpmc,adv-wr-off-ns = <25>; + gpmc,we-on-ns = <0>; + gpmc,we-off-ns = <20>; + gpmc,oe-on-ns = <3>; + gpmc,oe-off-ns = <30>; + gpmc,access-ns = <30>; + gpmc,rd-cycle-ns = <40>; + gpmc,wr-cycle-ns = <40>; + gpmc,bus-turnaround-ns = <0>; + gpmc,cycle2cycle-delay-ns = <0>; + gpmc,clk-activation-ns = <0>; + gpmc,wr-access-ns = <40>; + gpmc,wr-data-mux-bus-ns = <0>; + + partitions { + compatible = "fixed-partitions"; + #address-cells = <1>; + #size-cells = <1>; + + partition@0 { + label = "NAND.tiboot3"; + reg = <0x00000000 0x00200000>; /* 2M */ + }; + partition@200000 { + label = "NAND.tispl"; + reg = <0x00200000 0x00200000>; /* 2M */ + }; + partition@400000 { + label = "NAND.tiboot3.backup"; /* 2M */ + reg = <0x00400000 0x00200000>; /* BootROM looks at 4M */ + }; + partition@600000 { + label = "NAND.u-boot"; + reg = <0x00600000 0x00400000>; /* 4M */ + }; + partition@a00000 { + label = "NAND.u-boot-env"; + reg = <0x00a00000 0x00040000>; /* 256K */ + }; + partition@a40000 { + label = "NAND.u-boot-env.backup"; + reg = <0x00a40000 0x00040000>; /* 256K */ + }; + partition@a80000 { + label = "NAND.file-system"; + reg = <0x00a80000 0x3f580000>; + }; + }; + }; +}; + +&elm0{ + status = "okay"; +}; -- 2.25.1
