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Implement LED color policy (crosbug.com/p/23957) Update battery vendor information (crosbug.com/p/24684) BUG=chrome-os-partner:24885 BRANCH=rambi TEST=manual system on, lidclose -> power LED off system on, lidopen -> power LED on system suspended -> power LED blinks green every 2 sec system suspended, lid closed -> power LED off system off -> power LED off plug AC in, battfake 95 -> charging LED green plug AC in, battfake 94 -> charging LED orange unplug AC, battfake 10 -> charging LED off unplug AC, battfake 9 -> charging LED blinks orange battcutoff -> after a few sec, system powered down plug back in AC -> system comes back on charger -> I_in < 1700 Change-Id: I89161e2c024d85197b8612a40a61dd50c106549e Signed-off-by: Randall Spangler <rspangler@chromium.org> Reviewed-on: https://chromium-review.googlesource.com/181755
In the most general case, the flash layout looks something like this: +---------------------+ | Reserved for EC use | +---------------------+ +---------------------+ | Vblock B | +---------------------+ | RW firmware B | +---------------------+ +---------------------+ | Vblock A | +---------------------+ | RW firmware A | +---------------------+ +---------------------+ | FMAP | +---------------------+ | Public root key | +---------------------+ | Read-only firmware | +---------------------+ BIOS firmware (and kernel) put the vblock info at the start of each image where it's easy to find. The Blizzard EC expects the firmware vector table to come first, so we have to put the vblock at the end. This means we have to know where to look for it, but that's built into the FMAP and the RO firmware anyway, so that's not an issue. The RO firmware doesn't need a vblock of course, but it does need some reserved space for vboot-related things. Using SHA256/RSA4096, the vblock is 2468 bytes (0x9a4), while the public root key is 1064 bytes (0x428) and the current FMAP is 644 bytes (0x284). If we reserve 4K at the top of each FW image, that should give us plenty of room for vboot-related stuff.