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Date: Fri, 29 Apr 2011 01:16:03 -0600 From: Grant Likely <grant.likely@...retlab.ca> To: devicetree-discuss@...ts.ozlabs.org, linux-arm-kernel@...ts.infradead.org Cc: Nicolas Pitre <nicolas.pitre@...aro.org>, Russell King <linux@....linux.org.uk>, linux-kernel@...r.kernel.org Subject: [PATCH v5 7/8] arm/dt: Basic tegra devicetree support This patch adds adds very basic support for booting tegra 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 device registrations directly from data in the tree instead of using hard coded data. That change will be made in a future patch. v2: Fixed cut-and-paste error in commit text Signed-off-by: Grant Likely <grant.likely@...retlab.ca> --- arch/arm/boot/dts/tegra-harmony.dts | 7 +++++++ arch/arm/mach-tegra/board-harmony.c | 6 ++++++ 2 files changed, 13 insertions(+), 0 deletions(-) create mode 100644 arch/arm/boot/dts/tegra-harmony.dts diff --git a/arch/arm/boot/dts/tegra-harmony.dts b/arch/arm/boot/dts/tegra-harmony.dts new file mode 100644 index 0000000..81032e7 --- /dev/null +++ b/arch/arm/boot/dts/tegra-harmony.dts @@ -0,0 +1,7 @@ +/dts-v1/; +/include/ "skeleton.dtsi" + +/ { + model = "NVIDIA Tegra2 Harmony evaluation board"; + compatible = "nvidia,harmony", "nvidia,tegra250"; +}; diff --git a/arch/arm/mach-tegra/board-harmony.c b/arch/arm/mach-tegra/board-harmony.c index 75c918a..adbdb87 100644 --- a/arch/arm/mach-tegra/board-harmony.c +++ b/arch/arm/mach-tegra/board-harmony.c @@ -199,6 +199,11 @@ static void __init tegra_harmony_init(void) harmony_regulator_init(); } +static const char * tegra_harmony_board_compat[] = { + "nvidia,harmony", + NULL +}; + MACHINE_START(HARMONY, "harmony") .boot_params = 0x00000100, .fixup = tegra_harmony_fixup, @@ -207,4 +212,5 @@ MACHINE_START(HARMONY, "harmony") .init_irq = tegra_init_irq, .timer = &tegra_timer, .init_machine = tegra_harmony_init, + .dt_compat = tegra_harmony_board_compat, MACHINE_END -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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