linux-kernel - [PATCH 8/8] arm/dt: Basic tegra devicetree support

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Message-ID: <20110118202938.13011.35918.stgit@localhost6.localdomain6>
Date:	Tue, 18 Jan 2011 13:29:38 -0700
From:	Grant Likely <grant.likely@...retlab.ca>
To:	linux-arm-kernel@...ts.infradead.org
Cc:	Nicolas Pitre <nicolas.pitre@...aro.org>,
	Russell King <linux@....linux.org.uk>,
	Catalin Marinas <catalin.marinas@....com>,
	devicetree-discuss@...ts.ozlabs.org, linux-kernel@...r.kernel.org,
	Olof Johansson <olof@...om.net>,
	Jeremy Kerr <jeremy.kerr@...onical.com>,
	John Linn <John.Linn@...inx.com>,
	Lennert Buijtenhek <buytenh@...tstofly.org>
Subject: [PATCH 8/8] arm/dt: Basic tegra devicetree support

This patch adds adds very basic support for booting versatile with a
device tree.  It simply allows the existing machine_descs to match
against the tegra compatible values so that the kernel can boot.
Kernel parameters and the initrd pointer is read out of the tree
instead of atags.

This is not complete device tree support.  This change will be
reverted when a new machine_desc is added that can populate the
versatile device registrations directly from data in the tree instead
of using hard coded data.  That change will be made in a future patch.

Signed-off-by: Grant Likely <grant.likely@...retlab.ca>
---
 arch/arm/mach-tegra/board-harmony.c |    6 ++++++
 1 files changed, 6 insertions(+), 0 deletions(-)

diff --git a/arch/arm/mach-tegra/board-harmony.c b/arch/arm/mach-tegra/board-harmony.c
index b9dbdb1..99884e9 100644
--- a/arch/arm/mach-tegra/board-harmony.c
+++ b/arch/arm/mach-tegra/board-harmony.c
@@ -113,6 +113,11 @@ static void __init tegra_harmony_init(void)
 	platform_add_devices(harmony_devices, ARRAY_SIZE(harmony_devices));
 }
 
+static const char * tegra_harmony_board_compat[] = {
+	"nvidia,harmony",
+	NULL
+};
+
 MACHINE_START(HARMONY, "harmony")
 	.boot_params  = 0x00000100,
 	.fixup		= tegra_harmony_fixup,
@@ -120,4 +125,5 @@ MACHINE_START(HARMONY, "harmony")
 	.init_machine   = tegra_harmony_init,
 	.map_io         = tegra_map_common_io,
 	.timer          = &tegra_timer,
+	.dt_compat      = tegra_harmony_board_compat,
 MACHINE_END

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