From: Grant Likely <grant.likely@secretlab.ca>
To: Benoit Cousson <b-cousson@ti.com>
Cc: tony@atomide.com, paul@pwsan.com, khilman@ti.com, rnayak@ti.com,
linux-omap@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
devicetree-discuss@lists.ozlabs.org, "G,
Manjunath Kondaiah" <manjugk@ti.com>
Subject: Re: [PATCH 03/11] arm/dts: Add support for OMAP4 PandaBoard
Date: Fri, 23 Sep 2011 17:21:42 -0600 [thread overview]
Message-ID: <20110923232142.GG24631@ponder.secretlab.ca> (raw)
In-Reply-To: <1316809399-19579-4-git-send-email-b-cousson@ti.com>
On Fri, Sep 23, 2011 at 10:23:11PM +0200, Benoit Cousson wrote:
> Based on the original omap4-panda.dts file from Manju.
> http://www.spinics.net/lists/linux-omap/msg55836.html
>
> Add memory information and a default bootargs to allow
> a boot from RAMDISK.
>
> Signed-off-by: Benoit Cousson <b-cousson@ti.com>
> Cc: Grant Likely <grant.likely@secretlab.ca>
> Cc: G, Manjunath Kondaiah <manjugk@ti.com>
> ---
> arch/arm/boot/dts/omap4-panda.dts | 29 +++++++++++++++++++++++++++++
> 1 files changed, 29 insertions(+), 0 deletions(-)
> create mode 100644 arch/arm/boot/dts/omap4-panda.dts
>
> diff --git a/arch/arm/boot/dts/omap4-panda.dts b/arch/arm/boot/dts/omap4-panda.dts
> new file mode 100644
> index 0000000..c702657
> --- /dev/null
> +++ b/arch/arm/boot/dts/omap4-panda.dts
> @@ -0,0 +1,29 @@
> +/*
> + * Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.com/
> + *
> + * This program is free software; you can redistribute it and/or modify
> + * it under the terms of the GNU General Public License version 2 as
> + * published by the Free Software Foundation.
> + */
> +/dts-v1/;
> +
> +/include/ "omap4.dtsi"
> +
> +/ {
> + model = "TI OMAP4 PandaBoard";
> + compatible = "ti,omap4-panda", "ti,omap4430", "ti,omap4";
> +
> + /*
> + * Since the initial device tree board file does not create any
> + * devices (MMC, network...), the only way to boot is to provide a
> + * ramdisk.
> + */
> + chosen {
> + bootargs = "root=/dev/ram0 rw console=ttyO2,115200n8 initrd=0x81600000,20M ramdisk_size=20480 no_console_suspend debug";
Generally, we don't want bootargs in the .dts files; we want them
added to the .dtb by the boot firmware. However, we are bootstrapping
here, so I'm okay with it in the short term until firmware matures a
bit more.
> + };
> +
> + memory {
> + device_type = "memory";
> + reg = <0x80000000 0x40000000>; /* 1 GB */
> + };
> +};
> --
> 1.7.0.4
>
next prev parent reply other threads:[~2011-09-23 23:21 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-09-23 20:23 [PATCH 00/11] OMAP: Add initial support for DT on OMAP3 & OMAP4 Benoit Cousson
2011-09-23 20:23 ` [PATCH 01/11] OMAP2+: Add SoC specific map_io functions Benoit Cousson
2011-09-23 23:00 ` Tony Lindgren
2011-09-26 23:15 ` Tony Lindgren
2011-09-26 23:16 ` [PATCH] ARM: OMAP2+: Use SoC specifc map_io Tony Lindgren
2011-09-26 23:18 ` [PATCH] ARM: OMAP2+: Remove custom init_irq for remaining boards Tony Lindgren
2012-05-04 15:59 ` [PATCH 01/11] OMAP2+: Add SoC specific map_io functions Thomas Petazzoni
2012-05-14 15:06 ` Cousson, Benoit
2012-05-14 19:55 ` Nicolas Pitre
2011-09-23 20:23 ` [PATCH 02/11] arm/dts: Add initial device tree support for OMAP4 SoC Benoit Cousson
2011-09-23 20:23 ` [PATCH 03/11] arm/dts: Add support for OMAP4 PandaBoard Benoit Cousson
2011-09-23 23:21 ` Grant Likely [this message]
2011-09-26 12:38 ` Cousson, Benoit
2011-09-23 20:23 ` [PATCH 04/11] arm/dts: Add support for OMAP4 SDP board Benoit Cousson
2011-09-23 20:23 ` [PATCH 05/11] arm/dts: Add initial device tree support for OMAP3 SoC Benoit Cousson
2011-09-23 20:23 ` [PATCH 06/11] arm/dts: Add support for OMAP3 Beagle board Benoit Cousson
2011-09-23 20:23 ` [PATCH 07/11] OMAP2+: board-generic: Add DT support to generic board Benoit Cousson
2011-09-23 23:08 ` Tony Lindgren
2011-09-26 12:35 ` Cousson, Benoit
2011-09-26 21:37 ` Tony Lindgren
2011-09-26 6:32 ` Rajendra Nayak
[not found] ` <4E801C62.5020700-l0cyMroinI0@public.gmane.org>
2011-09-26 9:00 ` Cousson, Benoit
2011-09-23 20:23 ` [PATCH 08/11] OMAP2+: board-generic: Add i2c static init Benoit Cousson
2011-09-23 23:12 ` Tony Lindgren
2011-09-23 23:47 ` Grant Likely
2011-09-26 16:45 ` Tony Lindgren
2011-09-23 20:23 ` [PATCH 09/11] OMAP2+: l3-noc: Add support for device-tree Benoit Cousson
2011-09-23 20:23 ` [PATCH 10/11] arm/dts: OMAP4: Add a main ocp entry bound to l3-noc driver Benoit Cousson
2011-09-23 22:58 ` Tony Lindgren
2011-09-26 12:13 ` Cousson, Benoit
2011-09-26 21:44 ` Tony Lindgren
2011-09-23 20:23 ` [PATCH 11/11] arm/dts: OMAP3+: Add mpu, dsp and iva nodes Benoit Cousson
2011-09-23 23:26 ` Grant Likely
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