| commit | ce732d225ecc8418519f3a97dee1892d245fafc1 | [log] [tgz] |
|---|---|---|
| author | Braden Kell <bradenkell@google.com> | Tue Oct 15 21:39:13 2019 +0000 |
| committer | CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org> | Tue Oct 15 21:39:13 2019 +0000 |
| tree | 1442845e3d50b802a9fe76d6e02127eddf9a6f56 | |
| parent | 22ab74f7bb8fa887b38a3cf230dbb61eb851f952 [diff] |
[zircon][sdhci] Disable internal clock when changing SD bus frequency
According to the SDHCI specification this shouldn't be necessary,
however the controller in the AS370 doesn't update the bus clock
frequency unless the internal clock is disabled.
Test: runtests -t sdhci-test
Test: Paved Eve and ran iotime, performance was the same as before this
change.
Test: Scoped SDIO clock line on AS370 EVK board, observed frequency
increase after initialization.
Change-Id: Ia86926ab362b951ece158082c02993158643f34a
Pink + Purple == Fuchsia (a new operating system)
Fuchsia is a modular, capability-based operating system. Fuchsia runs on modern 64-bit Intel and ARM processors.
Fuchsia is an open source project with a code of conduct that we expect everyone who interacts with the project to respect.
See Getting Started.
See fuchsia.dev.