From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751649AbdF3M7Y (ORCPT ); Fri, 30 Jun 2017 08:59:24 -0400 Received: from esa3.microchip.iphmx.com ([68.232.153.233]:33428 "EHLO esa3.microchip.iphmx.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751563AbdF3M6S (ORCPT ); Fri, 30 Jun 2017 08:58:18 -0400 X-IronPort-AV: E=Sophos;i="5.40,286,1496127600"; d="scan'208";a="4285225" Date: Fri, 30 Jun 2017 14:57:53 +0200 From: Ludovic Desroches To: m18063 CC: , , , , , , , , , Subject: Re: [PATCH 4/5] ARM: dts: at91: at91-sama5d27_som1: add sama5d27 SoM1 support Message-ID: <20170630125753.hx6nv46gjjgww3dy@rfolt0960.corp.atmel.com> Mail-Followup-To: m18063 , nicolas.ferre@microchip.com, alexandre.belloni@free-electrons.com, robh+dt@kernel.org, mark.rutland@arm.com, linux@armlinux.org.uk, sza@esh.hu, devicetree@vger.kernel.org, cristian.birsan@microchip.com, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org References: <1498736674-9233-1-git-send-email-claudiu.beznea@microchip.com> <1498736674-9233-5-git-send-email-claudiu.beznea@microchip.com> <20170629145841.srpjgcdw7jo2f6as@rfolt0960.corp.atmel.com> <4452aad8-1bb4-f937-02b8-e5960f2aadc2@microchip.com> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline In-Reply-To: <4452aad8-1bb4-f937-02b8-e5960f2aadc2@microchip.com> User-Agent: NeoMutt/20170306 (1.8.0) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Jun 30, 2017 at 03:38:22PM +0300, m18063 wrote: > Hi Ludovic, > > On 29.06.2017 17:58, Ludovic Desroches wrote: > > On Thu, Jun 29, 2017 at 02:44:33PM +0300, Claudiu Beznea wrote: > >> Add specific DTS file and bindings for sama5d27 SoM1 board. > >> > >> Signed-off-by: Claudiu Beznea > >> Signed-off-by: Cristian Birsan > >> --- > >> arch/arm/boot/dts/at91-sama5d27_som1.dtsi | 178 ++++++++++++++++++++++++++++++ > >> 1 file changed, 178 insertions(+) > >> create mode 100644 arch/arm/boot/dts/at91-sama5d27_som1.dtsi > >> > >> diff --git a/arch/arm/boot/dts/at91-sama5d27_som1.dtsi b/arch/arm/boot/dts/at91-sama5d27_som1.dtsi > >> new file mode 100644 > >> index 0000000..b3af4d4 > >> --- /dev/null > >> +++ b/arch/arm/boot/dts/at91-sama5d27_som1.dtsi > >> @@ -0,0 +1,178 @@ > >> +/* > >> + * at91-sama5d27_som1.dtsi - Device Tree file for SAMA5D27 SoM1 board > >> + * > >> + * Copyright (c) 2017, Microchip Technology Inc. > >> + * 2017 Cristian Birsan > >> + * 2017 Claudiu Beznea > >> + * > >> + * This file is dual-licensed: you can use it either under the terms > >> + * of the GPL or the X11 license, at your option. Note that this dual > >> + * licensing only applies to this file, and not this project as a > >> + * whole. > >> + * > >> + * a) This file is free software; you can redistribute it and/or > >> + * modify it under the terms of the GNU General Public License as > >> + * published by the Free Software Foundation; either version 2 of the > >> + * License, or (at your option) any later version. > >> + * > >> + * This file is distributed in the hope that it will be useful, > >> + * but WITHOUT ANY WARRANTY; without even the implied warranty of > >> + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the > >> + * GNU General Public License for more details. > >> + * > >> + * Or, alternatively, > >> + * > >> + * b) Permission is hereby granted, free of charge, to any person > >> + * obtaining a copy of this software and associated documentation > >> + * files (the "Software"), to deal in the Software without > >> + * restriction, including without limitation the rights to use, > >> + * copy, modify, merge, publish, distribute, sublicense, and/or > >> + * sell copies of the Software, and to permit persons to whom the > >> + * Software is furnished to do so, subject to the following > >> + * conditions: > >> + * > >> + * The above copyright notice and this permission notice shall be > >> + * included in all copies or substantial portions of the Software. > >> + * > >> + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, > >> + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES > >> + * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND > >> + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT > >> + * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, > >> + * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING > >> + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR > >> + * OTHER DEALINGS IN THE SOFTWARE. > >> + */ > >> +#include "sama5d2.dtsi" > >> +#include "sama5d2-pinfunc.h" > >> + > >> +/ { > >> + model = "Atmel SAMA5D27 SoM1"; > >> + compatible = "atmel,sama5d27-som1", "atmel,sama5d27", "atmel,sama5d2", "atmel,sama5"; > >> + > >> + clocks { > >> + slow_xtal { > >> + clock-frequency = <32768>; > >> + }; > >> + > >> + main_xtal { > >> + clock-frequency = <24000000>; > >> + }; > >> + }; > >> + > >> + ahb { > >> + apb { > >> + qspi1: spi@f0024000 { > >> + pinctrl-names = "default"; > >> + pinctrl-0 = <&pinctrl_qspi1_default>; > >> + flash@0 { > >> + #address-cells = <1>; > >> + #size-cells = <1>; > >> + compatible = "jedec,spi-nor"; > >> + reg = <0>; > >> + spi-max-frequency = <83000000>; > >> + m25p,fast-read; > >> + > >> + at91bootstrap@00000000 { > >> + label = "at91bootstrap"; > >> + reg = <0x00000000 0x00010000>; > >> + }; > >> + > >> + bootloaderenv@00010000 { > >> + label = "bootloader env"; > >> + reg = <0x00010000 0x00010000>; > >> + }; > >> + > >> + bootloader@00020000 { > >> + label = "bootloader"; > >> + reg = <0x00020000 0x00050000>; > >> + }; > >> + > >> + dtb@00070000 { > >> + label = "device tree"; > >> + reg = <0x00070000 0x00010000>; > >> + }; > >> + > >> + kernel@00080000 { > >> + label = "kernel"; > >> + reg = <0x00080000 0x00380000>; > >> + }; > > > > I am wondering if it's a good idea to give the flash map here. If we > > take a kernel generated by a sama5_defconfig, it is about 3.8 MB. > The flash size here is 8MB. With kernel image of 3.8M, bootloader of 18KB, > u-boot of 2.2MB, dtb of 31K it will still fit. Right it can fit, I mean the description gives about 3.5 MB for the kernel so you can extend it. Regards Ludovic > > > >> + }; > >> + }; > >> + > >> + macb0: ethernet@f8008000 { > >> + pinctrl-names = "default"; > >> + pinctrl-0 = <&pinctrl_macb0_default>; > >> + phy-mode = "rmii"; > >> + > >> + ethernet-phy@1 { > >> + reg = <0x1>; > >> + interrupt-parent = <&pioA>; > >> + interrupts = <73 IRQ_TYPE_LEVEL_LOW>; > > > > Are you sure about this value? pinctrl tells PD31 so 127. By the way, it > > is better to use macros: PIN_PD31. > Yes, here is a mistake. It has to be PIN_PD31. I will fix it in v2. > > Thank you, > Claudiu > > > > Regards > > > > Ludovic > > > >> + pinctrl-names = "default"; > >> + pinctrl-0 = <&pinctrl_macb0_phy_irq>; > >> + }; > >> + }; > >> + > >> + i2c0: i2c@f8028000 { > >> + dmas = <0>, <0>; > >> + pinctrl-names = "default"; > >> + pinctrl-0 = <&pinctrl_i2c0_default>; > >> + i2c-sda-hold-time-ns = <350>; > >> + status = "disabled"; > >> + > >> + 24aa@50 { > >> + compatible = "24mac602"; > >> + reg = <0x50>; > >> + pagesize = <8>; > >> + start-offset = /bits/ 8 <0xf8>; > >> + read-only; > >> + }; > >> + }; > >> + > >> + pinctrl@fc038000 { > >> + > >> + pinctrl_i2c0_default: i2c0_default { > >> + pinmux = , > >> + ; > >> + bias-disable; > >> + }; > >> + > >> + pinctrl_macb0_default: macb0_default { > >> + pinmux = , > >> + , > >> + , > >> + , > >> + , > >> + , > >> + , > >> + , > >> + , > >> + ; > >> + bias-disable; > >> + }; > >> + > >> + pinctrl_macb0_phy_irq: macb0_phy_irq { > >> + pinmux = ; > >> + bias-disable; > >> + }; > >> + > >> + pinctrl_qspi1_default: qspi1_default { > >> + sck_cs { > >> + pinmux = , > >> + ; > >> + bias-disable; > >> + }; > >> + > >> + data { > >> + pinmux = , > >> + , > >> + , > >> + ; > >> + bias-pull-up; > >> + }; > >> + }; > >> + }; > >> + }; > >> + }; > >> +}; > >> -- > >> 2.7.4 > >> > >> > >> _______________________________________________ > >> linux-arm-kernel mailing list > >> linux-arm-kernel@lists.infradead.org > >> http://lists.infradead.org/mailman/listinfo/linux-arm-kernel > > _______________________________________________ > linux-arm-kernel mailing list > linux-arm-kernel@lists.infradead.org > http://lists.infradead.org/mailman/listinfo/linux-arm-kernel