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https://github.com/brain-hackers/u-boot-brain
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![Andre Renaud](/assets/img/avatar_default.png)
This board is based on Snapper 9G45 which has an Atmel AT91SAM9G45 chip and 128MB of SDRAM. It includes a small LCD, 2xUSB host, SD card, Ethernet and two UARTs. Signed-off-by: Andre Renaud <andre@designa-electronics.com> Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Andreas Bießmann <andreas@biessmann.org> [apply CONFIG_BOOTDELAY transition] Signed-off-by: Andreas Bießmann <andreas@biessmann.org>
158 lines
2.9 KiB
Plaintext
158 lines
2.9 KiB
Plaintext
/*
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* at91sam9g20ek.dts - Device Tree file for Atmel at91sam9g20ek board
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*
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* Copyright (C) 2012 Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
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*
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* Licensed under GPLv2.
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*/
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/dts-v1/;
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#include "at91sam9g45.dtsi"
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/ {
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model = "Bluewater Systems Gurnard";
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compatible = "atmel,at91sam9g45", "atmel,at91sam9";
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chosen {
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bootargs = "mem=64M root=/dev/mtdblock5 rw rootfstype=ubifs";
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stdout-path = "serial0:115200n8";
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};
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memory {
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reg = <0x20000000 0x8000000>;
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};
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clocks {
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slow_xtal {
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clock-frequency = <32768>;
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};
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main_xtal {
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clock-frequency = <18432000>;
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};
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};
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ahb {
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u-boot,dm-pre-reloc;
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fb@0x00500000 {
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u-boot,dm-pre-reloc;
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status = "okay";
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display-timings {
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rev1 {
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clock-frequency = <4166666>;
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hactive = <480>;
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vactive = <272>;
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hfront-porch = <1>;
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hback-porch = <1>;
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hsync-len = <1>;
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vback-porch = <4>;
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vfront-porch = <2>;
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vsync-len = <1>;
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hsync-active = <0>;
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vsync-active = <0>;
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};
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rev2 {
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clock-frequency = <4166666>;
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hactive = <480>;
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vactive = <272>;
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hfront-porch = <2>;
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hback-porch = <2>;
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hsync-len = <10>;
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vback-porch = <2>;
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vfront-porch = <2>;
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vsync-len = <10>;
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hsync-active = <0>;
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vsync-active = <0>;
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};
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};
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};
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apb {
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pinctrl@fffff400 {
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board {
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pinctrl_pck0_as_mck: pck0_as_mck {
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atmel,pins =
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<AT91_PIOC 1 AT91_PERIPH_B AT91_PINCTRL_NONE>; /* PC1 periph B */
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};
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};
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mmc0_slot1 {
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pinctrl_board_mmc0_slot1: mmc0_slot1-board {
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atmel,pins =
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<AT91_PIOC 9 AT91_PERIPH_GPIO AT91_PINCTRL_PULL_UP_DEGLITCH>; /* PC9 gpio CD pin pull up and deglitch */
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};
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};
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};
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dbgu: serial@ffffee00 {
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status = "okay";
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};
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macb0: ethernet@fffbc000 {
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phy-mode = "rmii";
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status = "okay";
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};
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mmc0: mmc@fff80000 {
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pinctrl-0 = <
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&pinctrl_board_mmc0_slot1
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&pinctrl_mmc0_slot0_clk_cmd_dat0
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&pinctrl_mmc0_slot0_dat1_3>;
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status = "okay";
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slot@1 {
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reg = <1>;
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bus-width = <4>;
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cd-gpios = <&pioC 9 GPIO_ACTIVE_HIGH>;
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};
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};
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ssc0: ssc@fff9c000 {
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status = "okay";
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pinctrl-0 = <&pinctrl_ssc0_tx>;
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};
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spi0: spi@fffa4000 {
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cs-gpios = <0>, <&pioC 11 0>, <0>, <0>;
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mtd_dataflash@0 {
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compatible = "atmel,at45", "atmel,dataflash";
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spi-max-frequency = <50000000>;
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reg = <1>;
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};
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};
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shdwc@fffffd10 {
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atmel,wakeup-counter = <10>;
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atmel,wakeup-rtt-timer;
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};
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rtc@fffffd20 {
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atmel,rtt-rtc-time-reg = <&gpbr 0x0>;
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status = "okay";
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};
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watchdog@fffffd40 {
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status = "okay";
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};
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gpbr: syscon@fffffd60 {
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status = "okay";
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};
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};
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nand0: nand@40000000 {
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nand-bus-width = <8>;
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nand-ecc-mode = "hardware";
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nand-on-flash-bbt;
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status = "okay";
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};
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usb1: ehci@00800000 {
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atmel,vbus-gpio = <&pioC 5 GPIO_ACTIVE_HIGH>;
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status = "okay";
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};
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};
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};
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