From: Stephen Warren <swarren@wwwdotorg.org>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH 07/20] dm: tegra: cros_ec: Enable Chrome OS EC on Nyan-big
Date: Wed, 25 Feb 2015 16:15:45 -0700 [thread overview]
Message-ID: <54EE57A1.4080700@wwwdotorg.org> (raw)
In-Reply-To: <1424212195-7501-8-git-send-email-sjg@chromium.org>
On 02/17/2015 03:29 PM, Simon Glass wrote:
> Enable the EC and keyboard, using the SPI bus.
>
> The EC driver requires a particular format and a deactivation delay. Also
> U-Boot does not support interrupts.
>
> For now, adjust the device tree to comply. At some point we should tidy
> this up to support interrupts and make tegra and exynos use the same setup.
> diff --git a/arch/arm/dts/tegra124-nyan-big.dts b/arch/arm/dts/tegra124-nyan-big.dts
> spi at 7000d400 {
> status = "okay";
> + spi-deactivate-delay = <200>;
> + spi-max-frequency = <3000000>;
>
> cros_ec: cros-ec at 0 {
> - compatible = "google,cros-ec-spi";
> - spi-max-frequency = <3000000>;
> + compatible = "google,cros-ec";
I recall some discussion that implied both the SPI bus/controller node
and the SPI device node both needed an spi-max-frequency property. Can
you double-check this change conforms with the DT binding, and whatever
Linux has in its DT files?
next prev parent reply other threads:[~2015-02-25 23:15 UTC|newest]
Thread overview: 55+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-02-17 22:29 [U-Boot] [PATCH 0/20] tegra: Expand Nyan-big support Simon Glass
2015-02-17 22:29 ` [U-Boot] [PATCH 01/20] dm: spi: Avoid setting the speed with every transfer Simon Glass
2015-05-02 20:58 ` Simon Glass
2015-02-17 22:29 ` [U-Boot] [PATCH 02/20] cros_ec: Show the protocol version in the debug message Simon Glass
2015-05-02 20:58 ` Simon Glass
2015-02-17 22:29 ` [U-Boot] [PATCH 03/20] cros_ec: Handle the single duplex requirement in cros_ec Simon Glass
2015-05-02 20:58 ` Simon Glass
2015-02-17 22:29 ` [U-Boot] [PATCH 04/20] tegra: Provide more accurate microsecond time Simon Glass
2015-02-25 23:10 ` Stephen Warren
2015-03-29 13:00 ` Simon Glass
2015-02-17 22:29 ` [U-Boot] [PATCH 05/20] tegra: cros_ec: Add tegra support for Chrome OS EC Simon Glass
2015-02-17 22:29 ` [U-Boot] [PATCH 06/20] tegra: spi: Drop the claim_bus() method to correct delays Simon Glass
2015-02-25 23:14 ` Stephen Warren
2015-03-29 13:10 ` Simon Glass
2015-02-17 22:29 ` [U-Boot] [PATCH 07/20] dm: tegra: cros_ec: Enable Chrome OS EC on Nyan-big Simon Glass
2015-02-25 23:15 ` Stephen Warren [this message]
2015-03-29 13:00 ` Simon Glass
2015-02-17 22:29 ` [U-Boot] [PATCH 08/20] dm: gpio: Add an implementation for gpio_get_number() Simon Glass
2015-02-17 22:29 ` [U-Boot] [PATCH 09/20] tegra: spi: Support slow SPI rates Simon Glass
2015-02-17 22:29 ` [U-Boot] [PATCH 10/20] tegra: clock: Support enabling external clocks Simon Glass
2015-02-17 22:29 ` [U-Boot] [PATCH 11/20] tegra: clock: Adjust PLL access to avoid a warning Simon Glass
2015-02-17 22:29 ` [U-Boot] [PATCH 12/20] tegra: Introduce SRAM repair on tegra124 Simon Glass
2015-02-17 22:29 ` [U-Boot] [PATCH 13/20] tegra: Add missing tegra124 peripherals Simon Glass
2015-02-17 22:29 ` [U-Boot] [PATCH 14/20] tegra: Increase maximum arguments to 32 Simon Glass
2015-02-17 22:29 ` [U-Boot] [PATCH 15/20] tegra: lcd: Tidy up clock init Simon Glass
2015-02-17 22:29 ` [U-Boot] [PATCH 16/20] tegra: Allow board-specific init Simon Glass
2015-02-17 22:29 ` [U-Boot] [PATCH 17/20] tegra: nyan-big: Add additional clock and kernel init Simon Glass
2015-02-25 23:23 ` Stephen Warren
2015-03-29 13:02 ` Simon Glass
2015-02-17 22:29 ` [U-Boot] [PATCH 18/20] Add Chrome OS config header Simon Glass
2015-02-25 23:28 ` Stephen Warren
2015-02-26 9:15 ` thomas.langer at lantiq.com
2015-05-13 13:19 ` Simon Glass
2015-05-15 15:27 ` Stephen Warren
2015-05-18 21:40 ` Simon Glass
2015-02-17 22:29 ` [U-Boot] [PATCH 19/20] tegra: config: Allow Chrome OS environment settings to be included Simon Glass
2015-02-17 22:29 ` [U-Boot] [PATCH 20/20] tegra: config: nyan-big: Add options required by Chrome OS boot Simon Glass
2015-02-25 23:31 ` Stephen Warren
2015-05-13 13:56 ` Simon Glass
2015-05-15 15:34 ` Stephen Warren
2015-05-18 21:33 ` Simon Glass
2015-05-19 15:41 ` Stephen Warren
2015-05-19 18:01 ` Simon Glass
2015-05-19 21:36 ` Stephen Warren
2015-05-19 23:27 ` Simon Glass
2015-05-20 1:44 ` Stephen Warren
2015-05-20 3:00 ` Simon Glass
2015-05-20 10:21 ` Peter Robinson
2015-05-20 13:40 ` Simon Glass
2015-05-20 14:04 ` Stephen Warren
2015-05-20 14:14 ` Simon Glass
2015-02-26 0:12 ` [U-Boot] [PATCH 0/20] tegra: Expand Nyan-big support Sjoerd Simons
2015-02-28 5:11 ` Simon Glass
2015-03-30 8:14 ` Sjoerd Simons
2015-03-30 23:51 ` Simon Glass
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