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ed57c407 | 1 | // SPDX-License-Identifier: GPL-2.0 |
2 | /* | |
3 | * Copyright (c) Siemens AG, 2018-2023 | |
4 | * | |
5 | * Authors: | |
6 | * Chao Zeng <[email protected]> | |
7 | * Jan Kiszka <[email protected]> | |
8 | * | |
9 | * AM6548-based (quad-core) IOT2050 M.2 variant (based on Advanced Product | |
10 | * Generation 2), 2 GB RAM, 16 GB eMMC, USB-serial converter on connector X30 | |
11 | * | |
12 | * Product homepage: | |
13 | * https://new.siemens.com/global/en/products/automation/pc-based/iot-gateways/simatic-iot2050.html | |
14 | */ | |
15 | ||
16 | #include "k3-am6548-iot2050-advanced-common.dtsi" | |
17 | #include "k3-am65-iot2050-common-pg2.dtsi" | |
18 | ||
19 | / { | |
20 | compatible = "siemens,iot2050-advanced-m2", "ti,am654"; | |
21 | model = "SIMATIC IOT2050 Advanced M2"; | |
22 | }; | |
23 | ||
24 | &mcu_r5fss0 { | |
25 | /* lock-step mode not supported on this board */ | |
26 | ti,cluster-mode = <0>; | |
27 | }; | |
28 | ||
29 | &main_pmx0 { | |
82750ce4 | 30 | main_m2_enable_pins_default: main-m2-enable-default-pins { |
ed57c407 | 31 | pinctrl-single,pins = < |
32 | AM65X_IOPAD(0x01c4, PIN_INPUT_PULLUP, 7) /* (AH13) GPIO1_17 */ | |
33 | >; | |
34 | }; | |
35 | ||
82750ce4 | 36 | main_bkey_pcie_reset: main-bkey-pcie-reset-default-pins { |
ed57c407 | 37 | pinctrl-single,pins = < |
38 | AM65X_IOPAD(0x01bc, PIN_OUTPUT_PULLUP, 7) /* (AG13) GPIO1_15 */ | |
39 | >; | |
40 | }; | |
41 | ||
82750ce4 | 42 | main_pmx0_m2_config_pins_default: main-pmx0-m2-config-default-pins { |
ed57c407 | 43 | pinctrl-single,pins = < |
44 | AM65X_IOPAD(0x01c8, PIN_INPUT_PULLUP, 7) /* (AE13) GPIO1_18 */ | |
45 | AM65X_IOPAD(0x01cc, PIN_INPUT_PULLUP, 7) /* (AD13) GPIO1_19 */ | |
46 | >; | |
47 | }; | |
48 | ||
82750ce4 | 49 | main_m2_pcie_mux_control: main-m2-pcie-mux-control-default-pins { |
ed57c407 | 50 | pinctrl-single,pins = < |
51 | AM65X_IOPAD(0x0148, PIN_INPUT_PULLUP, 7) /* (AG22) GPIO0_82 */ | |
52 | AM65X_IOPAD(0x0160, PIN_INPUT_PULLUP, 7) /* (AE20) GPIO0_88 */ | |
53 | AM65X_IOPAD(0x0164, PIN_INPUT_PULLUP, 7) /* (AF19) GPIO0_89 */ | |
54 | >; | |
55 | }; | |
56 | }; | |
57 | ||
58 | &main_pmx1 { | |
82750ce4 | 59 | main_pmx1_m2_config_pins_default: main-pmx1-m2-config-default-pins { |
ed57c407 | 60 | pinctrl-single,pins = < |
61 | AM65X_IOPAD(0x0018, PIN_INPUT_PULLUP, 7) /* (B22) GPIO1_88 */ | |
62 | AM65X_IOPAD(0x001c, PIN_INPUT_PULLUP, 7) /* (C23) GPIO1_89 */ | |
63 | >; | |
64 | }; | |
65 | }; | |
66 | ||
67 | &main_gpio0 { | |
68 | pinctrl-names = "default"; | |
82750ce4 JK |
69 | pinctrl-0 = |
70 | <&main_m2_pcie_mux_control>, | |
71 | <&arduino_io_d4_to_d9_pins_default>; | |
ed57c407 | 72 | }; |
73 | ||
74 | &main_gpio1 { | |
75 | pinctrl-names = "default"; | |
82750ce4 JK |
76 | pinctrl-0 = |
77 | <&main_m2_enable_pins_default>, | |
78 | <&main_pmx0_m2_config_pins_default>, | |
79 | <&main_pmx1_m2_config_pins_default>, | |
80 | <&cp2102n_reset_pin_default>; | |
ed57c407 | 81 | }; |
82 | ||
83 | /* | |
84 | * Base configuration for B-key slot with PCIe x2, E-key with USB 2.0 only. | |
85 | * Firmware switches to other modes via device tree overlays. | |
86 | */ | |
87 | ||
88 | &serdes0 { | |
89 | assigned-clocks = <&k3_clks 153 4>, <&serdes0 AM654_SERDES_CMU_REFCLK>; | |
90 | assigned-clock-parents = <&k3_clks 153 8>, <&k3_clks 153 4>; | |
91 | }; | |
92 | ||
93 | &pcie0_rc { | |
94 | pinctrl-names = "default"; | |
95 | pinctrl-0 = <&main_bkey_pcie_reset>; | |
96 | ||
97 | num-lanes = <2>; | |
98 | phys = <&serdes0 PHY_TYPE_PCIE 1>, <&serdes1 PHY_TYPE_PCIE 1>; | |
99 | phy-names = "pcie-phy0","pcie-phy1"; | |
100 | reset-gpios = <&main_gpio1 15 GPIO_ACTIVE_HIGH>; | |
101 | status = "okay"; | |
102 | }; | |
103 | ||
104 | &pcie1_rc { | |
105 | status = "disabled"; | |
106 | }; | |
107 | ||
108 | &dwc3_0 { | |
109 | assigned-clock-parents = <&k3_clks 151 4>, /* set REF_CLK to 20MHz i.e. PER0_PLL/48 */ | |
110 | <&k3_clks 151 9>; /* set PIPE3_TXB_CLK to CLK_12M_RC/256 (for HS only) */ | |
111 | /delete-property/ phys; | |
112 | /delete-property/ phy-names; | |
113 | }; | |
114 | ||
115 | &usb0 { | |
116 | maximum-speed = "high-speed"; | |
117 | /delete-property/ snps,dis-u1-entry-quirk; | |
118 | /delete-property/ snps,dis-u2-entry-quirk; | |
119 | }; |