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| author | Mary Ruthven <mruthven@chromium.org> | 2016-09-02 11:36:06 -0700 |
|---|---|---|
| committer | chrome-bot <chrome-bot@chromium.org> | 2016-09-02 18:34:19 -0700 |
| commit | b2a751cfd8b5f543e7b40f32c81a7a6f876c42c7 (patch) | |
| tree | 19dbae7173f5d22eb3ac6cb64218fef661b804ce /include/system.h | |
| parent | a22b506a76b269b35a2c0242f5369cb1884dffce (diff) | |
| download | chrome-ec-b2a751cfd8b5f543e7b40f32c81a7a6f876c42c7.tar.gz | |
cr50: mark updated image as good once a usb request is received
There is now a call to reset the retry counter before the hard reset
after an update. Cr50 will use the updated image for the next 5 boots,
but on the 6th it sees the retry counter is greater than 5 and then
jumps back to the old image. Cr50 needs to call
system_process_retry_counter to reset the counter and corrupt the old
image header to prevent falling back to the old image.
Normally the reset counter would be processed after it receives a TPM
command. Reef does not have Cr50 TPM support. Until Cr50 has TPM
support for Reef, Cr50 should have a different point to know when the
update is good. This change adds a board property to mark the process
the reset counter once the Cr50 USB controller receives a set address
request from the host. On Reef the controller defaults to the AP PHY
when suzyq is not connected, so it should have a connection to the AP
or through suzyq after boot.
The board property is only added to Reef. Behavior on Kevin and Gru is
unchanged.
BUG=chrome-os-partner:56864
BRANCH=none
TEST=update reef. Wait until Cr50 prints 'SETAD' then run 'rw
0x4000012c' and verify it is reset to 0.
Change-Id: If517202f25a694cd70550e3be047ea502e7c5383
Signed-off-by: Mary Ruthven <mruthven@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/380354
Diffstat (limited to 'include/system.h')
| -rw-r--r-- | include/system.h | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/include/system.h b/include/system.h index d8d10950ce..d6d2c063b7 100644 --- a/include/system.h +++ b/include/system.h @@ -467,7 +467,10 @@ int system_process_retry_counter(void); #define BOARD_SLAVE_CONFIG_I2C (1 << 1) /* Slave I2C interface */ #define BOARD_USB_AP (1 << 2) /* One of the PHYs is */ /* connected to the AP */ -#define BOARD_DISABLE_UART0_RX (1 << 3) /* Disable UART0 RX */ +#define BOARD_DISABLE_UART0_RX (1 << 3) /* Disable UART0 RX */ +#define BOARD_MARK_UPDATE_ON_USB_REQ (1 << 4) /* update is good once the */ + /* controller gets a request */ + /** * Get board properites * |