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Message-ID: <20140207080142.GR9558@ns203013.ovh.net>
Date: Fri, 7 Feb 2014 09:01:42 +0100
From: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@...osoft.com>
To: Nicolas Ferre <nicolas.ferre@...el.com>
Cc: linux-arm-kernel@...ts.infradead.org,
Boris BREZILLON <b.brezillon@...rkiz.com>,
linux-kernel@...r.kernel.org,
Ludovic Desroches <ludovic.desroches@...el.com>
Subject: Re: [PATCH v2] ARM: at91: add Atmel's SAMA5D3 Xplained board
On 09:35 Wed 05 Feb , Nicolas Ferre wrote:
> Add DT file for new SAMA5D3 Xpained board.
> This board is based on Atmel's SAMA5D36 Cortex-A5 SoC.
>
> Signed-off-by: Nicolas Ferre <nicolas.ferre@...el.com>
> ---
> arch/arm/boot/dts/Makefile | 1 +
> arch/arm/boot/dts/at91-sama5d3_xplained.dts | 233 ++++++++++++++++++++++++++++
> 2 files changed, 234 insertions(+)
> create mode 100644 arch/arm/boot/dts/at91-sama5d3_xplained.dts
>
> diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
> index b9d6a8b485e0..6d1e43d46187 100644
> --- a/arch/arm/boot/dts/Makefile
> +++ b/arch/arm/boot/dts/Makefile
> @@ -38,6 +38,7 @@ dtb-$(CONFIG_ARCH_AT91) += at91sam9g35ek.dtb
> dtb-$(CONFIG_ARCH_AT91) += at91sam9x25ek.dtb
> dtb-$(CONFIG_ARCH_AT91) += at91sam9x35ek.dtb
> # sama5d3
> +dtb-$(CONFIG_ARCH_AT91) += at91-sama5d3_xplained.dtb
> dtb-$(CONFIG_ARCH_AT91) += sama5d31ek.dtb
> dtb-$(CONFIG_ARCH_AT91) += sama5d33ek.dtb
> dtb-$(CONFIG_ARCH_AT91) += sama5d34ek.dtb
> diff --git a/arch/arm/boot/dts/at91-sama5d3_xplained.dts b/arch/arm/boot/dts/at91-sama5d3_xplained.dts
> new file mode 100644
> index 000000000000..fb1349ca60a4
> --- /dev/null
> +++ b/arch/arm/boot/dts/at91-sama5d3_xplained.dts
> @@ -0,0 +1,233 @@
> +/*
> + * at91-sama5d3_xplained.dts - Device Tree file for the SAMA5D3 Xplained board
> + *
> + * Copyright (C) 2014 Atmel,
> + * 2014 Nicolas Ferre <nicolas.ferre@...el.com>
> + *
> + * Licensed under GPLv2 or later.
> + */
> +/dts-v1/;
> +#include "sama5d36.dtsi"
> +
> +/ {
> + model = "SAMA5D3 Xplained";
> + compatible = "atmel,sama5d3-xplained", "atmel,sama5d3", "atmel,sama5";
> +
> + chosen {
> + bootargs = "console=ttyS0,115200";
can you describe it via linux,stdout
> + };
> +
> + memory {
> + reg = <0x20000000 0x10000000>;
> + };
> +
> + ahb {
> + apb {
> + mmc0: mmc@...00000 {
> + pinc§trl-names = "default";
?? this is SoC should never been seen here
> + pinctrl-0 = <&pinctrl_mmc0_clk_cmd_dat0 &pinctrl_mmc0_dat1_3 &pinctrl_mmc0_dat4_7 &pinctrl_mmc0_cd>;
> + status = "okay";
> + slot@0 {
> + reg = <0>;
> + bus-width = <8>;
> + cd-gpios = <&pioE 0 GPIO_ACTIVE_LOW>;
> + };
> + };
> +
> + spi0: spi@...04000 {
> + cs-gpios = <&pioD 13 0>, <0>, <0>, <0>;
if you use only one CS no need to specified all
we need to add macro per SoC for the hw CS used as GPIO so it's more clear
> + status = "okay";
> + };
> +
> + can0: can@...0c000 {
> + status = "okay";
> + };
> +
> + i2c0: i2c@...14000 {
> + status = "okay";
> + };
> +
> + i2c1: i2c@...18000 {
> + status = "okay";
> + };
> +
> + macb0: ethernet@...28000 {
> + phy-mode = "rgmii";
> + status = "okay";
> + };
> +
> + usart0: serial@...1c000 {
> + status = "okay";
> + };
> +
> + usart1: serial@...20000 {
> + pinctrl-names = "default";
same as mmc
> + pinctrl-0 = <&pinctrl_usart1 &pinctrl_usart1_rts_cts>;
> + status = "okay";
> + };
> +
> + uart0: serial@...24000 {
> + status = "okay";
> + };
> +
> + mmc1: mmc@...00000 {
> + pinctrl-names = "default";
ditto
> + pinctrl-0 = <&pinctrl_mmc1_clk_cmd_dat0 &pinctrl_mmc1_dat1_3 &pinctrl_mmc1_cd>;
> + status = "okay";
> + slot@0 {
> + reg = <0>;
> + bus-width = <4>;
> + cd-gpios = <&pioE 1 GPIO_ACTIVE_HIGH>;
> + };
> + };
> +
> + spi1: spi@...08000 {
> + cs-gpios = <&pioC 25 0>, <0>, <0>, <&pioD 16 0>;
> + status = "okay";
> + };
> +
> + adc0: adc@...18000 {
> + pinctrl-names = "default";
ditto
> + pinctrl-0 = <
> + &pinctrl_adc0_adtrg
> + &pinctrl_adc0_ad0
> + &pinctrl_adc0_ad1
> + &pinctrl_adc0_ad2
> + &pinctrl_adc0_ad3
> + &pinctrl_adc0_ad4
> + &pinctrl_adc0_ad5
> + &pinctrl_adc0_ad6
> + &pinctrl_adc0_ad7
> + &pinctrl_adc0_ad8
> + &pinctrl_adc0_ad9
> + >;
> + status = "okay";
> + };
> +
> + i2c2: i2c@...1c000 {
> + dmas = <0>, <0>; /* Do not use DMA for i2c2 */
why?
> + status = "okay";
> + };
> +
> + macb1: ethernet@...2c000 {
> + phy-mode = "rmii";
> + status = "okay";
> + };
> +
> + dbgu: serial@...fee00 {
> + status = "okay";
> + };
> +
> + pinctrl@...ff200 {
> + board {
> + pinctrl_mmc0_cd: mmc0_cd {
> + atmel,pins =
> + <AT91_PIOE 0 AT91_PERIPH_GPIO AT91_PINCTRL_PULL_UP_DEGLITCH>;
> + };
> +
> + pinctrl_mmc1_cd: mmc1_cd {
> + atmel,pins =
> + <AT91_PIOE 1 AT91_PERIPH_GPIO AT91_PINCTRL_PULL_UP_DEGLITCH>;
> + };
> +
> + pinctrl_usba_vbus: usba_vbus {
> + atmel,pins =
> + <AT91_PIOE 9 AT91_PERIPH_GPIO AT91_PINCTRL_DEGLITCH>; /* PE9, conflicts with A9 */
in this case we should have ifdef so we could choose what we want via make
file
> + };
> + };
> + };
> +
> + pmc: pmc@...ffc00 {
> + main: mainck {
> + clock-frequency = <12000000>;
> + };
> + };
> + };
> +
> + nand0: nand@...00000 {
> + nand-bus-width = <8>;
> + nand-ecc-mode = "hw";
> + atmel,has-pmecc;
> + atmel,pmecc-cap = <4>;
> + atmel,pmecc-sector-size = <512>;
> + nand-on-flash-bbt;
> + status = "okay";
> +
> + at91bootstrap@0 {
> + label = "at91bootstrap";
> + reg = <0x0 0x40000>;
> + };
> +
> + bootloader@...00 {
> + label = "bootloader";
> + reg = <0x40000 0x80000>;
> + };
> +
> + bootloaderenv@...00 {
> + label = "bootloader env";
> + reg = <0xc0000 0xc0000>;
> + };
> +
> + dtb@...000 {
> + label = "device tree";
> + reg = <0x180000 0x80000>;
> + };
> +
> + kernel@...000 {
> + label = "kernel";
> + reg = <0x200000 0x600000>;
> + };
> +
> + rootfs@...000 {
> + label = "rootfs";
> + reg = <0x800000 0x0f800000>;
> + };
more I read this partition more it's seems wrong those days
we really need to switch to UBI
> + };
> +
> + usb0: gadget@...00000 {
> + atmel,vbus-gpio = <&pioE 9 GPIO_ACTIVE_HIGH>; /* PE9, conflicts with A9 */
> + pinctrl-names = "default";
> + pinctrl-0 = <&pinctrl_usba_vbus>;
> + status = "okay";
> + };
> +
> + usb1: ohci@...00000 {
> + num-ports = <3>;
> + atmel,vbus-gpio = <0
> + &pioE 3 GPIO_ACTIVE_LOW
> + &pioE 4 GPIO_ACTIVE_LOW
> + >;
> + status = "okay";
> + };
> +
> + usb2: ehci@...00000 {
> + status = "okay";
> + };
> + };
> +
> + gpio_keys {
> + compatible = "gpio-keys";
> +
> + bp3 {
> + label = "PB_USER";
> + gpios = <&pioE 29 GPIO_ACTIVE_LOW>;
> + linux,code = <0x104>;
> + gpio-key,wakeup;
> + };
> + };
> +
> + leds {
> + compatible = "gpio-leds";
> +
> + d2 {
> + label = "d2";
> + gpios = <&pioE 23 GPIO_ACTIVE_LOW>; /* PE23, conflicts with A23, CTS2 */
> + linux,default-trigger = "heartbeat";
> + };
> +
> + d3 {
> + label = "d3";
> + gpios = <&pioE 24 GPIO_ACTIVE_HIGH>;
> + };
> + };
> +};
> --
> 1.8.2.2
>
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