1 // SPDX-License-Identifier: GPL-2.0-only OR MI
2 /**
3 * DT overlay for HSE NAND expansion card on A
4 *
5 * Copyright (C) 2021-2024 Texas Instruments I
6 */
7
8 /dts-v1/;
9 /plugin/;
10 #include <dt-bindings/gpio/gpio.h>
11 #include <dt-bindings/interrupt-controller/irq
12 #include "k3-pinctrl.h"
13
14 &main_pmx0 {
15 gpmc0_default_pins: gpmc0-default-pins
16 bootph-all;
17 pinctrl-single,pins = <
18 AM64X_IOPAD(0x0094, PI
19 AM64X_IOPAD(0x003c, PI
20 AM64X_IOPAD(0x0040, PI
21 AM64X_IOPAD(0x0064, PI
22 AM64X_IOPAD(0x0068, PI
23 AM64X_IOPAD(0x006c, PI
24 AM64X_IOPAD(0x0070, PI
25 AM64X_IOPAD(0x0074, PI
26 AM64X_IOPAD(0x0078, PI
27 AM64X_IOPAD(0x0044, PI
28 AM64X_IOPAD(0x0048, PI
29 AM64X_IOPAD(0x004c, PI
30 AM64X_IOPAD(0x0050, PI
31 AM64X_IOPAD(0x0054, PI
32 AM64X_IOPAD(0x0058, PI
33 AM64X_IOPAD(0x005c, PI
34 AM64X_IOPAD(0x0060, PI
35 AM64X_IOPAD(0x0098, PI
36 AM64X_IOPAD(0x009c, PI
37 AM64X_IOPAD(0x00a8, PI
38 AM64X_IOPAD(0x00ac, PI
39 AM64X_IOPAD(0x00b0, PI
40 AM64X_IOPAD(0x00b4, PI
41 AM64X_IOPAD(0x007c, PI
42 AM64X_IOPAD(0x0084, PI
43 AM64X_IOPAD(0x0088, PI
44 AM64X_IOPAD(0x008c, PI
45 AM64X_IOPAD(0x0090, PI
46 AM64X_IOPAD(0x00a0, PI
47 AM64X_IOPAD(0x00a4, PI
48 >;
49 };
50 };
51
52 &main_gpio0 {
53 gpmc0-hog {
54 bootph-all;
55 gpio-hog;
56 gpios = <36 0>;
57 input;
58 line-name = "GPMC0_MUX_DIR";
59 };
60 };
61
62 &elm0 {
63 bootph-all;
64 status = "okay";
65 };
66
67 &gpmc0 {
68 status = "okay";
69 pinctrl-names = "default";
70 pinctrl-0 = <&gpmc0_default_pins>;
71 #address-cells = <2>;
72 #size-cells = <1>;
73
74 nand@0,0 {
75 compatible = "ti,am64-nand";
76 reg = <0 0 64>; /* dev
77 interrupt-parent = <&gpmc0>;
78 interrupts = <0 IRQ_TYPE_NONE>
79 <1 IRQ_TYPE_NONE>
80 rb-gpios = <&gpmc0 0 GPIO_ACTI
81 ti,nand-xfer-type = "prefetch-
82 ti,nand-ecc-opt = "bch8";
83 ti,elm-id = <&elm0>;
84 nand-bus-width = <8>;
85 gpmc,device-width = <1>;
86 gpmc,sync-clk-ps = <0>;
87 gpmc,cs-on-ns = <0>;
88 gpmc,cs-rd-off-ns = <40>;
89 gpmc,cs-wr-off-ns = <40>;
90 gpmc,adv-on-ns = <0>;
91 gpmc,adv-rd-off-ns = <25>;
92 gpmc,adv-wr-off-ns = <25>;
93 gpmc,we-on-ns = <0>;
94 gpmc,we-off-ns = <20>;
95 gpmc,oe-on-ns = <3>;
96 gpmc,oe-off-ns = <30>;
97 gpmc,access-ns = <30>;
98 gpmc,rd-cycle-ns = <40>;
99 gpmc,wr-cycle-ns = <40>;
100 gpmc,bus-turnaround-ns = <0>;
101 gpmc,cycle2cycle-delay-ns = <0
102 gpmc,clk-activation-ns = <0>;
103 gpmc,wr-access-ns = <40>;
104 gpmc,wr-data-mux-bus-ns = <0>;
105
106 partitions {
107 compatible = "fixed-pa
108 #address-cells = <1>;
109 #size-cells = <1>;
110
111 partition@0 {
112 bootph-all;
113 label = "NAND.
114 reg = <0x00000
115 };
116 partition@200000 {
117 bootph-all;
118 label = "NAND.
119 reg = <0x00200
120 };
121 partition@400000 {
122 bootph-all;
123 label = "NAND.
124 reg = <0x00400
125 };
126 partition@600000 {
127 bootph-all;
128 label = "NAND.
129 reg = <0x00600
130 };
131 partition@a00000 {
132 bootph-all;
133 label = "NAND.
134 reg = <0x00a00
135 };
136 partition@a40000 {
137 bootph-all;
138 label = "NAND.
139 reg = <0x00a40
140 };
141 partition@a80000 {
142 bootph-all;
143 label = "NAND.
144 reg = <0x00a80
145 };
146 };
147 };
148 };
Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.