Re: [PATCH] net: emac: emac gigabit ethernet controller driver

From: Timur Tabi
Date: Tue Dec 15 2015 - 10:17:10 EST


Arnd Bergmann wrote:
We generally want to use readl/writel rather than the relaxed versions,
unless it is in performance-critical code.

What about if we have 20+ writes in a row, for example, when initializing a part? I've seen code like this:

writel_relaxed(...);
writel_relaxed(...);
writel_relaxed(...);
...
writel(...); // HW now inited, so enable

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