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| author | Jack Rosenthal <jrosenth@chromium.org> | 2019-06-19 15:33:32 -0600 |
|---|---|---|
| committer | Commit Bot <commit-bot@chromium.org> | 2019-06-24 22:45:18 +0000 |
| commit | 52e914fa8e674f61b9602f124e998a74adbc2b61 (patch) | |
| tree | 4a3b18d5fab03b12e1443c10233f36e83663c356 /chip/ish/config_chip.h | |
| parent | c6aa7a384d179128339068531f79baed3a42ceef (diff) | |
| download | chrome-ec-52e914fa8e674f61b9602f124e998a74adbc2b61.tar.gz | |
ish: Use 64-bit hardware timer
ISH has native support for storing the hardware ticks in a 64-bit
integer. With CONFIG_HWTIMER_64BIT, we can use this instead of relying
on the periodic rollover interrupt.
BUG=b:133190570,chromium:976804
BRANCH=none
TEST=ran arcada_ish for more than 2³² μs, observed timer worked as
normal
Change-Id: I3b608c49081842f28d2ef8c16279992af1cb4fad
Signed-off-by: Jack Rosenthal <jrosenth@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/1668056
Reviewed-by: Denis Brockus <dbrockus@chromium.org>
Diffstat (limited to 'chip/ish/config_chip.h')
| -rw-r--r-- | chip/ish/config_chip.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/chip/ish/config_chip.h b/chip/ish/config_chip.h index e6b1b52050..148341db47 100644 --- a/chip/ish/config_chip.h +++ b/chip/ish/config_chip.h @@ -108,6 +108,9 @@ /* Customize the build */ /* Optional features present on this chip */ +/* ISH uses 64-bit hardware timer */ +#define CONFIG_HWTIMER_64BIT + /* Macro used with gpio.inc, ISH only has port 0 */ #define GPIO_PIN(index) 0, (1 << (index)) #define GPIO_PIN_MASK(m) .port = 0, .mask = (m) |