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* exynos5: Don't potentially undervoltage the CPUSjoerd Simons2017-01-18-7/+1
| | | | | | | | | | | | For snow when chainloading u-boot the CPU seems to be running at full speed. The lower CPU voltage seems to be ok for u-boot, but when booting linux (bringing up all cores) I'm seeing random crashes. Bump the voltage up to a level that's safe for all cpu frequencies. Signed-off-by: Sjoerd Simons <sjoerd.simons@collabora.co.uk> Reviewed-by: Javier Martinez Canillas <javier@osg.samsung.com> Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
* exynos: video: Drop old unused codeSimon Glass2016-05-25-153/+0
| | | | | | | | | Now that we are using driver model, we can drop the weak functions and LCD init in the board file. Signed-off-by: Simon Glass <sjg@chromium.org> Acked-by: Anatolij Gustschin <agust@denx.de> Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
* exynos: Simplify calling of exynos_dp_phy_ctrl()Simon Glass2016-05-25-5/+0
| | | | | | | | This function controls enabling the EDP PHY. Rename it and drop the existing weak functions, which are confusing. Signed-off-by: Simon Glass <sjg@chromium.org> Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
* exynos5-dt-types: add board detection for Odroid XU3/XU3L/XU4.Przemyslaw Marczak2015-11-02-0/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This commit adds additional file with implementation of board detection code for Odroid-XU3/XU4. The detection depends on compatible found in fdt: - "samsung,exynos5" - uses Exynos5 generic code - "samsung,odroidxu3" - try detect XU3 revision There are few revisions of Odroid XU3/XU4, each can be detected by checking the value of channel 9 of built-in ADC: Rev ADC Board 0.1 0 XU3 0.1 0.2 372 XU3 0.2 | XU3L - no DISPLAYPORT 0.3 1280 XU4 0.1 The detection code depends on the ADC+10% value. Implementation of functions: - set_board_type() - read ADC and set type - get_board_rev() - returns board revision: 1..3 - get_board_type() - returns board type string Additional functions with return values of bool: - board_is_generic() - true if found compatible "samsung,exynos5" but not "samsung,odroidxu3" - board_is_odroidxu3() - true if found compatible "samsung,odroidxu3" and one of XU3 revision. - board_is_odroidxu4() - true if found compatible "samsung,odroidxu3" and XU4 revision. After I2C controller init, the get_board_type() can check if the XU3 board is a "Lite" variant, by probing chip 0x40 on I2C0 (INA231 - exists only on non-lite). This is useful for setting fdt file name at misc_init_r(). Enabled configs: - CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG - CONFIG_ODROID_REV_AIN - CONFIG_REVISION_TAG - CONFIG_BOARD_TYPES Signed-off-by: Przemyslaw Marczak <p.marczak@samsung.com> Cc: Minkyu Kang <mk7.kang@samsung.com> Cc: Simon Glass <sjg@chromium.org> Tested-by: Anand Moon <linux.amoon@gmail.com> Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
* exynos: Rise ARM voltage to 1.1V for chained bootloadersMisha Komarovskiy2015-08-31-3/+4
| | | | | | | | | If board uses downstream Chrome OS U-Boot as first stage bootloader and upstream version is chained second stage, 1.1V is minimum voltage borderline. Signed-off-by: Misha Komarovskiy <zombah@gmail.com> Acked-by: Simon Glass <sjg@chromium.org>
* exynos: Add common board code for exynos5 boards that use device treeSimon Glass2015-08-05-0/+362
Some boards use device tree for almost all board-specific configuration. They therefore do not need their own separate board code, but can all use the same version. Add a common version of the board code. It uses the PMIC, regulator and video bridge uclasses. This will support smdk5250, smdk5420, snow, spring, pit and pi. Signed-off-by: Simon Glass <sjg@chromium.org>