Hey Simon,
Incidentally i got acces to a Nyan big and wanted to start testing u-boot on it. Unfortunately putting a uImage in a vboot signed blob to chainload it from the primary bootloader like on the exynos based chromebooks seemed not to work.
Do you have any good pointers how to use u-boot on nyan? (Ideally without having to re-flash coreboot, as i would like to create images people can easily test on a vanilla chromebook)
On Tue, 2015-02-17 at 15:29 -0700, Simon Glass wrote:
This series expands Nyan-big support:
- Enable Chrome OS EC, so that the keyboard works
- Add some extra clock and pre-kernel init required for reliable operation
- Add Chrome OS environment variables, including 'run nvboot' to allow
booting Chrome OS more easily
Still missing are audio and USB.
Doug Anderson (1): Add Chrome OS config header
Simon Glass (19): dm: spi: Avoid setting the speed with every transfer cros_ec: Show the protocol version in the debug message cros_ec: Handle the single duplex requirement in cros_ec tegra: Provide more accurate microsecond time tegra: cros_ec: Add tegra support for Chrome OS EC tegra: spi: Drop the claim_bus() method to correct delays dm: tegra: cros_ec: Enable Chrome OS EC on Nyan-big dm: gpio: Add an implementation for gpio_get_number() tegra: spi: Support slow SPI rates tegra: clock: Support enabling external clocks tegra: clock: Adjust PLL access to avoid a warning tegra: Introduce SRAM repair on tegra124 tegra: Add missing tegra124 peripherals tegra: Increase maximum arguments to 32 tegra: lcd: Tidy up clock init tegra: Allow board-specific init tegra: nyan-big: Add additional clock and kernel init tegra: config: Allow Chrome OS environment settings to be included tegra: config: nyan-big: Add options required by Chrome OS boot
arch/arm/cpu/tegra-common/Makefile | 1 + arch/arm/cpu/tegra-common/clock.c | 24 +- arch/arm/cpu/tegra-common/powergate.c | 20 +- arch/arm/cpu/tegra-common/timer.c | 87 ++++ arch/arm/cpu/tegra124-common/clock.c | 2 +- arch/arm/dts/tegra124-nyan-big.dts | 6 +- arch/arm/include/asm/arch-tegra/clock.h | 8 + arch/arm/include/asm/arch-tegra/sys_proto.h | 7 + arch/arm/include/asm/arch-tegra124/clock-tables.h | 12 +- arch/arm/include/asm/arch-tegra124/flow.h | 12 + board/nvidia/common/board.c | 8 +- board/nvidia/nyan-big/nyan-big.c | 76 ++++ configs/nyan-big_defconfig | 5 + drivers/gpio/gpio-uclass.c | 12 + drivers/misc/cros_ec.c | 3 +- drivers/misc/cros_ec_spi.c | 23 +- drivers/spi/spi-uclass.c | 9 +- drivers/spi/tegra114_spi.c | 51 +-- drivers/video/tegra124/tegra124-lcd.c | 4 +- include/configs/chromeos.h | 464 ++++++++++++++++++++++ include/configs/nyan-big.h | 8 + include/configs/tegra-common-post.h | 15 +- include/configs/tegra-common.h | 2 +- include/spi.h | 3 + 24 files changed, 804 insertions(+), 58 deletions(-) create mode 100644 arch/arm/cpu/tegra-common/timer.c create mode 100644 include/configs/chromeos.h