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In the interest of making long-term branch maintenance incur as little
technical debt on us as possible, we should not maintain any files on
the branch we are not actually using.
This has the added effect of making it extremely clear when merging CLs
from the main branch when changes have the possibility to affect us.
The follow-on CL adds a convenience script to actually pull updates from
the main branch and generate a CL for the update.
BUG=b:204206272
BRANCH=ish
TEST=make BOARD=arcada_ish && make BOARD=drallion_ish
Signed-off-by: Jack Rosenthal <jrosenth@chromium.org>
Change-Id: I17e4694c38219b5a0823e0a3e55a28d1348f4b18
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/3262038
Reviewed-by: Jett Rink <jettrink@chromium.org>
Reviewed-by: Tom Hughes <tomhughes@chromium.org>
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The implementation of base detection in Kodama and Krane are very
similar. This CL unify the implementation by adding
VARIANT_KUKUI_POGO_KEYBOARD and VARIANT_KUKUI_POGO_DOCK.
VARIANT_KUKUI_POGO_KEYBOARD is a mandatory config if pick and
VARIANT_KUKUI_POGO_DOCK is optional.
TEST=make buildall
BUG=b:140608847
BRANCH=none
Change-Id: I068905d8a52404eda6709d88543fcb6042db7378
Signed-off-by: Yilun Lin <yllin@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/1806633
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Create a baseboard to reduce the effort of forking and maintaining kukui
derivatives.
This CL is intended to just moving things around, with minimal changes
to make compiler happy, complex logic changes will implement in subsequent
CLs.
BUG=b:137172860
TEST=build and deploy on a Krane
BRANCH=master
Change-Id: Ifd3ad5c3b03dce101cd15cbcec304f5e3a1081ac
Signed-off-by: Ting Shen <phoenixshen@google.com>
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/1695562
Reviewed-by: Ting Shen <phoenixshen@chromium.org>
Commit-Queue: Ting Shen <phoenixshen@chromium.org>
Tested-by: Ting Shen <phoenixshen@chromium.org>
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enable/disable pogo power supply when POGO_ADC_INT_L detected.
BUG=b:131389131
TEST=make
BRANCH=None
Change-Id: I875b8b65c3077d2e7aeca312f244d178917e634b
Signed-off-by: Ting Shen <phoenixshen@google.com>
Reviewed-on: https://chromium-review.googlesource.com/1585485
Commit-Ready: Ting Shen <phoenixshen@chromium.org>
Tested-by: Ting Shen <phoenixshen@chromium.org>
Reviewed-by: Yilun Lin <yllin@chromium.org>
Reviewed-by: Ting Shen <phoenixshen@chromium.org>
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It creates smaller code.
BUG=chromium:851727,b:65441143
BRANCH=none
TEST=builds with the new compiler
Change-Id: I569c6f75a595331fb489323d8b3f02d5dd2d5050
Signed-off-by: Patrick Georgi <pgeorgi@google.com>
Reviewed-on: https://chromium-review.googlesource.com/1450713
Commit-Ready: Patrick Georgi <pgeorgi@chromium.org>
Tested-by: Patrick Georgi <pgeorgi@chromium.org>
Reviewed-by: Stefan Reinauer <reinauer@chromium.org>
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kukui has a very limited size for RO image. We found that
using coreboot-sdk brings us a lot of extra space on kukui, so
we decide to use coreboot-sdk
BRANCH=None
BUG=b:122874284
TEST=build both targes with emerge-kukui coreboot && make BOARD=kukui -B -j \
BOOTBLOCK=/build/kukui/firmware/kukui/coreboot/bootblock.bin
and compare the results of grep hey build/kukui/RO/ec.RO.map
1. with coreboot-sdk
0x000000000001d7c8 __hey_flash_used = ((LOADADDR (.data) + SIZEOF ...
0x000000000001d7c8 __image_size = __hey_flash_used
2. without coreboot-sdk
0x000000000001df48 __hey_flash_used = ((LOADADDR (.data) + SIZEOF ...
0x000000000001df48 __image_size = __hey_flash_used
and it saves 1940 byte in this case.
Change-Id: Ic856db7d17a23df01b91152868eddb0920c3b069
Signed-off-by: Yilun Lin <yllin@google.com>
Reviewed-on: https://chromium-review.googlesource.com/1424045
Commit-Ready: Nicolas Boichat <drinkcat@chromium.org>
Tested-by: Yilun Lin <yllin@chromium.org>
Reviewed-by: Patrick Georgi <pgeorgi@chromium.org>
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Kukui is not able to boot from SPI-NOR, it can only boot from
eMMC or UFS. Here we emulates the eMMC boot using SPI controller.
AP tranmits on CMD line, and eMMC replies on DAT0 line.
eMMC boot operation looks a lot like SPI: CMD is unidirectional
MOSI, DAT is unidirectional MISO. CLK is driven by the master.
However, there is no chip-select, and the clock is active for a
long time before any command is sent on the CMD line. From SPI
perspective, this looks like a lot of '1' are being sent from
the master.
To catch the commands, we setup DMA to write the data into a
circular buffer (in_msg), and monitor for a falling edge on CMD
(emmc_cmd_interrupt). Once an interrupt is received, we scan the
circular buffer, in reverse, to be as fast as possible and
minimize chances of missing the command.
We then figure out the bit-wise command alignment, decode it,
and, upon receiving BOOT_INITIATION command, setup DMA to respond
with the data on the DAT line. The data in bootblock_data.h is
preprocessed to include necessary eMMC headers: acknowledge boot
mode, start of block, CRC, end of block, etc. The host can only
slow down transfer by stopping the clock, which is compatible
with SPI.
In some cases (e.g. if the BootROM expects data over 8 lanes
instead of 1), the BootROM will quickly interrupt the transfer
with an IDLE command. In this case we interrupt the transfer,
and the BootROM will try again.
BRANCH=None
BUG=b:110907438
TEST=make BOARD=kukui BOOTBLOCK=abc -j # check build pass
Change-Id: I0f1f2d35c525c6475d90fca2cd6e97f87cd747cc
Signed-off-by: Yilun Lin <yllin@google.com>
Signed-off-by: Nicolas Boichat <drinkcat@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/1126579
Reviewed-by: Randall Spangler <rspangler@chromium.org>
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Setup initial files and GPIOs for kukui.
TEST=make BOARD=kukui -j
BUG=b:80159522 b:110243480
BRANCH=none
Change-Id: I5c5f1f08d0a0c8e1336a27019ea01b2e0850d3c1
Signed-off-by: Yilun Lin <yllin@google.com>
Signed-off-by: Nicolas Boichat <drinkcat@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/1041505
Commit-Ready: ChromeOS CL Exonerator Bot <chromiumos-cl-exonerator@appspot.gserviceaccount.com>
Tested-by: Yilun Lin <yllin@chromium.org>
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