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author | Simon Glass <sjg@chromium.org> | 2016-03-12 05:07:07 (GMT) |
---|---|---|
committer | Bin Meng <bmeng.cn@gmail.com> | 2016-03-17 02:27:25 (GMT) |
commit | 005174d661e0860a2af1be3025c2214142916ab4 (patch) | |
tree | decf168ce122d37d70487ff25d6598c5788c971d /arch/x86/cpu | |
parent | 30928c1151225f4f318521bb3e04fa8431f7a938 (diff) | |
download | u-boot-005174d661e0860a2af1be3025c2214142916ab4.tar.xz |
x86: Allow I/O functions to use pointers
It is common with memory-mapped I/O to use the address of a structure member
to access memory, as in:
struct some_regs {
u32 ctrl;
u32 data;
}
struct some_regs *regs = (struct some_regs *)BASE_ADDRESS;
writel(1, ®->ctrl);
writel(2, ®->data);
This does not currently work with inl(), outl(), etc. Add a cast to permit
this.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Diffstat (limited to 'arch/x86/cpu')
0 files changed, 0 insertions, 0 deletions