diff options
Diffstat (limited to 'arch/arm/dts/k3-am62x-lp-sk-nand.dtsi')
| -rw-r--r-- | arch/arm/dts/k3-am62x-lp-sk-nand.dtsi | 116 |
1 files changed, 116 insertions, 0 deletions
diff --git a/arch/arm/dts/k3-am62x-lp-sk-nand.dtsi b/arch/arm/dts/k3-am62x-lp-sk-nand.dtsi new file mode 100644 index 0000000000..6af804571d --- /dev/null +++ b/arch/arm/dts/k3-am62x-lp-sk-nand.dtsi @@ -0,0 +1,116 @@ +// SPDX-License-Identifier: GPL-2.0 +/** + * DT overlay for HSE NAND expansion card on AM62X LP-SK + * + * Copyright (C) 2021 Texas Instruments Incorporated - https://www.ti.com/ + */ + +#ifdef CONFIG_NAND_OMAP_GPMC +&elm0 { + u-boot,dm-spl; + status = "okay"; +}; + +&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 */ + >; + u-boot,dm-spl; + }; +}; + +&gpmc0 { + pinctrl-names = "default"; + status = "okay"; + pinctrl-0 = <&gpmc0_pins_default>; + ranges = <0 0 0x00 0x51000000 0x01000000>; /* CS0 space. Min partition = 16MB */ + #address-cells = <2>; + #size-cells = <1>; + u-boot,dm-spl; + + 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>; + u-boot,dm-spl; + + 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>; + }; + }; + }; +}; + + +#endif |