This patch enables some configs that should be working on the Bob board,
based on what is observed to work on the Kevin board.
The Bob board uses an Embedded DisplayPort panel compatible with the
simple panel and Rockchip eDP drivers. Its backlight is controlled by
the Chromium OS Embedded Controller Pulse Width Modulator. Enable these
for the board.
Also set VIDEO_ROCKCHIP_MAX_{XRES,YRES} to 1280x800, the resolution of
its panel. This had to be done for the Kevin board, but it's untested if
this is actually necessary for Bob.
The Rockchip video driver needs to assert/deassert some resets, so also
enable the reset controller. RESET_ROCKCHIP defaults to y for this board
when DM_RESET=y, so it's enough to set that.
The Bob board has two USB 3.0 Type-C ports and one USB 2.0 Type-A port
on its right side. Enable the configs relevant to USB devices so these
can be used. This is despite a known issue with RK3399 boards where USB
de-init causes a hang, as there is a known workaround.
Some other rk3399-based devices enable support for the SoC's random
number generator in commit a475bef534 ("configs: rk3399: enable rng on
firefly/rock960/rockpro64"), as it can provide a KASLR seed when booting
using UEFI. Enable it for Bob as well.
The default misc_init_r() for Rockchip boards sets cpuid and ethernet
MAC address based on e-fuse block. A previous patch extends this on Gru
boards to set registers related to SoC IO domains as is necessary on
these boards. Enable this function and configs for it on Bob.
The microSD card slot on this board (and others based on Gru) is
connected to a GPIO controlled regulator (ppvar-sd-card-io), which must
be operable by U-Boot. Enable the relevant config option to allow this.
Bob boards also use the Winbond W25Q64DW SPI flash chip, enable support
for Winbond SPI flash chips in the board config so U-Boot can boot with
this chip.
Signed-off-by: Alper Nebi Yasak <alpernebiyasak@gmail.com>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Tested-by: Simon Glass <sjg@chromium.org>
This converts the following to Kconfig:
CONFIG_SYS_MMC_ENV_DEV
CONFIG_SYS_MMC_ENV_PART
Note that with this conversion we now have consistent behavior with
respect to ensuring that we have always selected the correct MMC
device and hardware partition.
Signed-off-by: Tom Rini <trini@konsulko.com>
Bob is a 10-inch chromebook produced by Asus. It has two USB 3.0 type-C
ports, 4GB of SDRAM, WiFi and a 1280x800 display. It uses its USB ports
for both power and external display. It includes a Chrome OS EC
(Cortex-M3) to provide access to the keyboard and battery functions.
Support so far includes only:
- UART
- SDRAM
- MMC, SD card
- Cros EC (but not keyboard)
Not included:
- Keyboard
- Display
- Sound
- USB
- TPM
Bob is quite similar to Kevin, the Samsung Chromebook Plus, but support
for this is not provided in this series.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
