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| author | Marty E. Plummer <hanetzer@startmail.com> | 2021-12-24 16:43:46 +0300 |
|---|---|---|
| committer | Kever Yang <kever.yang@rock-chips.com> | 2022-03-18 18:12:03 +0800 |
| commit | 6d36e92d28c9d009c786e29623c9558b7652ceda (patch) | |
| tree | 0986fbfcdf64b5f1ffe8960ecee10c1bfa928e43 /doc | |
| parent | e4015661c39383c786e00beec586bddb0cf1541c (diff) | |
| download | u-boot-6d36e92d28c9d009c786e29623c9558b7652ceda.tar.gz u-boot-6d36e92d28c9d009c786e29623c9558b7652ceda.tar.bz2 u-boot-6d36e92d28c9d009c786e29623c9558b7652ceda.zip | |
rockchip: rk3399: Add support for chromebook_kevin
Add support for Kevin, an RK3399-based convertible chromebook that is
very similar to Bob. This patch is mostly based on existing support for
Bob, with only minor changes for Kevin-specific things.
Unlike other Gru boards, coreboot sets Kevin's center logic to 925 mV,
so adjust it here in the dts as well. The rk3399-gru-kevin devicetree
has an unknown event code reference which has to be defined, set it
to the Linux counterpart. The new defconfig is copied from Bob with the
diffconfig:
DEFAULT_DEVICE_TREE "rk3399-gru-bob" -> "rk3399-gru-kevin"
DEFAULT_FDT_FILE "rockchip/rk3399-gru-bob.dtb" -> "rockchip/rk3399-gru-kevin.dtb"
VIDEO_ROCKCHIP_MAX_XRES 1280 -> 2400
VIDEO_ROCKCHIP_MAX_YRES 800 -> 1600
+TARGET_CHROMEBOOK_KEVIN y
With this Kevin can boot from SPI flash to a usable U-Boot prompt on the
display with the keyboard working, but cannot boot into Linux for
unknown reasons.
eMMC starts in a working state but fails to re-init, microSD card works
but at a lower-than-expected speed, USB works but causes a hang on
de-init. There are known workarounds to solve eMMC and USB issues.
Cc: Marty E. Plummer <hanetzer@startmail.com>
Cc: Simon Glass <sjg@chromium.org>
[Alper: commit message, resync config with Bob, update MAINTAINERS,
add to Rockchip doc, add Kconfig help message, set regulator]
Co-developed-by: Alper Nebi Yasak <alpernebiyasak@gmail.com>
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>
Diffstat (limited to 'doc')
| -rw-r--r-- | doc/board/rockchip/rockchip.rst | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/doc/board/rockchip/rockchip.rst b/doc/board/rockchip/rockchip.rst index 144cb98ef9..a75e60b9fa 100644 --- a/doc/board/rockchip/rockchip.rst +++ b/doc/board/rockchip/rockchip.rst @@ -66,6 +66,7 @@ List of mainline supported Rockchip boards: - FriendlyElec NanoPi M4B (nanopi-m4b-rk3399) - FriendlyARM NanoPi NEO4 (nanopi-neo4-rk3399) - Google Bob (chromebook_bob) + - Google Kevin (chromebook_kevin) - Khadas Edge (khadas-edge-rk3399) - Khadas Edge-Captain (khadas-edge-captain-rk3399) - Khadas Edge-V (hadas-edge-v-rk3399) |