2 * Copyright 2017 - Patrice Chotard <patrice.chotard@st.com>
4 * This file is dual-licensed: you can use it either under the terms
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6 * licensing only applies to this file, and not this project as a
9 * a) This file is free software; you can redistribute it and/or
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14 * This file is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
21 * b) Permission is hereby granted, free of charge, to any person
22 * obtaining a copy of this software and associated documentation
23 * files (the "Software"), to deal in the Software without
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44 #include "stm32h743.dtsi"
45 #include "stm32h743-pinctrl.dtsi"
46 #include <dt-bindings/memory/stm32-sdram.h>
49 model = "STMicroelectronics STM32H743i-Discovery board";
50 compatible = "st,stm32h743i-disco", "st,stm32h743";
53 bootargs = "root=/dev/ram";
54 stdout-path = "serial0:115200n8";
58 reg = <0xd0000000 0x2000000>;
79 pinctrl-0 = <&usart2_pins>;
80 pinctrl-names = "default";
85 pinctrl-0 = <&fmc_pins>;
86 pinctrl-names = "default";
90 * Memory configuration from sdram datasheet IS42S32800G-6BLI
91 * firsct bank is bank@0
92 * second bank is bank@1
95 st,sdram-control = /bits/ 8 <NO_COL_9 NO_ROW_12 MWIDTH_32 BANKS_4
96 CAS_2 SDCLK_3 RD_BURST_EN RD_PIPE_DL_0>;
97 st,sdram-timing = /bits/ 8 <TMRD_1 TXSR_1 TRAS_1 TRC_6 TRP_2
99 st,sdram-refcount = <1539>;
105 pinctrl-0 = <&sdmmc1_pins>;
106 pinctrl-names = "default";
108 cd-gpios = <&gpioi 8 1>;