Every now and then someone wants to chain-load U-Boot on a Chromebook. The procedure is not very complicated but there are some oddities.
This series updates a few things with allow U-Boot to start on nyan-big in this way and adds documentation on how to do it. This provides a central place where the procedure on different devices can be documented.
Changes in v2: - Add new patch containing a .its file for chromium - Explain how to create dummy.txt - Add a comment about how to create a protective MBR - Add new patch containing a .its file for chromium - Add instructions and patches for chain-loading into U-Boot on jerry
Simon Glass (28): display_options: Refactor to allow obtaining the banner Allow displaying the U-Boot banner on a video display arm: arm720t: Support CONFIG_SKIP_LOWLEVEL_INIT_ONLY arm: Rename HCTR to HTCR arm: Don't try to support CONFIG_ARMV7_LPAE on ARMv4T arm: Disable LPAE if not enabled power: regulator: Add more debugging and fix a missing newline tegra: Init clocks even when SPL did not run tegra: dts: Add cros-ec SPI settings tegra: spi: Wait a little after setting the clocks tegra: nyan-big: Enable the dhrystone benchmark tegra: video: Don't power up the SOR twice tegra: Enable CP15 init tegra: clock: Avoid a divide-by-zero error tegra: nyan-big: Add a .its file for chromium README: Add instructions for chain-loading U-Boot rockchip: Setup default PWM flags rockchip: Fix regualtor typo in veyron rockchip: rk3288: Add error debugging to veyron_init() rockchip: video: Add remove() methods rockchip: video: Take the vop device out of standby rockchip: jerry: Add a .its file for chromium rockchip: rk3288: Convert clock driver to use shifted masks rockchip: Init clocks again when chain-loading rockchip: rk3288: Allow setting up clocks in U-Boot proper rockchip: Enable the video display banner rockchip: jerry: Disable CONFIG_CONSOLE_SCROLL_LINES README: Add instructions for chain-loading U-Boot on jerry
arch/arm/cpu/arm720t/start.S | 6 +- arch/arm/dts/rk3288-veyron-jerry.dts | 2 +- arch/arm/dts/tegra124-nyan-big-u-boot.dtsi | 9 + arch/arm/include/asm/arch-rockchip/cru_rk3288.h | 74 +++---- arch/arm/include/asm/arch-tegra/clock.h | 3 + arch/arm/lib/cache-cp15.c | 13 +- arch/arm/mach-rockchip/rk3288-board.c | 39 +++- arch/arm/mach-tegra/board2.c | 3 + arch/arm/mach-tegra/clock.c | 10 +- arch/arm/mach-tegra/tegra124/clock.c | 18 ++ cmd/version.c | 4 +- common/board_r.c | 1 + common/console.c | 15 +- configs/chromebook_jerry_defconfig | 2 +- configs/nyan-big_defconfig | 2 + doc/README.chromium | 252 ++++++++++++++++++++++++ doc/chromium/chromebook_jerry.its | 42 ++++ doc/chromium/devkeys/kernel.keyblock | Bin 0 -> 1208 bytes doc/chromium/devkeys/kernel_data_key.vbprivk | Bin 0 -> 1199 bytes doc/chromium/nyan-big.its | 42 ++++ drivers/clk/rockchip/clk_rk3288.c | 146 +++++++------- drivers/power/regulator/regulator-uclass.c | 8 +- drivers/pwm/rk_pwm.c | 1 + drivers/spi/tegra114_spi.c | 1 + drivers/video/rockchip/rk_edp.c | 16 +- drivers/video/rockchip/rk_vop.c | 21 +- drivers/video/tegra124/sor.c | 9 + include/configs/rockchip-common.h | 2 + include/configs/tegra-common-post.h | 2 +- include/console.h | 12 ++ include/display_options.h | 15 ++ lib/display_options.c | 21 +- 32 files changed, 656 insertions(+), 135 deletions(-) create mode 100644 doc/README.chromium create mode 100644 doc/chromium/chromebook_jerry.its create mode 100644 doc/chromium/devkeys/kernel.keyblock create mode 100644 doc/chromium/devkeys/kernel_data_key.vbprivk create mode 100644 doc/chromium/nyan-big.its