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| author | Bill Richardson <wfrichar@chromium.org> | 2012-05-22 11:00:36 -0700 |
|---|---|---|
| committer | Bill Richardson <wfrichar@chromium.org> | 2012-05-22 14:22:13 -0700 |
| commit | a7d62b4fd4b4cd9e290bbd1e9e2e479f9ab9455e (patch) | |
| tree | 8a67e8760ce9dcd079bed3a245ebd5370a43636e /include | |
| parent | 43e26da7940633bca4b6cfcb0ff8a541375506f9 (diff) | |
| download | chrome-ec-a7d62b4fd4b4cd9e290bbd1e9e2e479f9ab9455e.tar.gz | |
Add LPC command to handle vboot stuff.
This adds "ectool vboot", which works like so:
# ./ectool vboot
0x06 image=A fake_dev=1
# ./ectool vboot 0
# ./ectool vboot
0x02 image=A fake_dev=0
# ./ectool vboot ff
# ./ectool vboot
0x06 image=A fake_dev=1
You can set or unset the fake dev-switch, and see which firmware image the
EC is running from.
BUG=chrome-os-partner:8313
TEST=manual
Boot the host, use crossystem to see the devsw_boot state. Change it with
the ectool command, reboot, see that it's changed.
Change-Id: Iaac40267338c6a07bc47b80e925e829bf1e1ae0c
Signed-off-by: Bill Richardson <wfrichar@chromium.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/ec_commands.h | 27 | ||||
| -rw-r--r-- | include/vboot.h | 13 |
2 files changed, 40 insertions, 0 deletions
diff --git a/include/ec_commands.h b/include/ec_commands.h index 91b5443e79..ea699f3d09 100644 --- a/include/ec_commands.h +++ b/include/ec_commands.h @@ -418,6 +418,33 @@ struct ec_params_lightbar_cmd { } __attribute__ ((packed)); /*****************************************************************************/ +/* Verified boot commands. Details still evolving. */ +#define EC_CMD_VBOOT_CMD 0x29 +struct ec_params_vboot_cmd { + union { + union { + uint8_t cmd; + struct { + uint8_t cmd; + /* no inputs */ + } get_flags; + struct { + uint8_t cmd; + uint8_t val; + } set_flags; + } in; + union { + struct { + uint8_t val; + } get_flags; + struct { + /* no outputs */ + } set_flags; + } out; + }; +} __attribute__ ((packed)); + +/*****************************************************************************/ /* USB charging control commands */ /* Set USB port charging mode */ diff --git a/include/vboot.h b/include/vboot.h index 430c617a52..48d626c0c7 100644 --- a/include/vboot.h +++ b/include/vboot.h @@ -17,4 +17,17 @@ int vboot_pre_init(void); /* Initializes the module. */ int vboot_init(void); +/* These are the vboot commands available via LPC. */ +enum vboot_command { + VBOOT_CMD_GET_FLAGS, + VBOOT_CMD_SET_FLAGS, + VBOOT_NUM_CMDS, +}; + +/* These are the flags transferred across LPC. At the moment, only the devmode + flag can be set, and only because it's faked. Ultimately this functionality + will be moved elsewhere. */ +#define VBOOT_FLAGS_IMAGE_MASK 0x03 /* enum system_image_copy_t */ +#define VBOOT_FLAGS_FAKE_DEVMODE 0x04 /* fake dev-mode bit */ + #endif /* __CROS_EC_VBOOT_H */ |