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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>
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The clrsetbits_...() macros are useful for working with memory mapped I/O.
But they do not work with I/O space, as used on x86 machines.
Add some macros to provide similar features for I/O.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
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Including <linux/compiler.h> is enough for general use.
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
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These are available on other architectures. Make them available on x86 also.
Signed-off-by: Simon Glass <sjg@chromium.org>
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These types should be 64 bits long to reflect the fact that physical
addresses and the size of physical areas of memory are more than 32 bits
long.
Signed-off-by: Gabe Black <gabeblack@chromium.org>
Signed-off-by: Simon Glass <sjg@chromium.org>
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This patch prevents u-boot from "spamming" random progress codes on
a port 80 "post card".
The previous version of this patch just removed the delays in the "slow"
IO functions, as they do not need to be slow, however, this patch is
less intrusive.
It uses another unused port that is often used by BIOSes (and the Linux
Kernel) for small delay timing purposes.
Signed-off-by: Stefan Reinauer <reinauer@chromium.org>
Signed-off-by: Simon Glass <sjg@chromium.org>
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The i386 version of io.h depends on the phys_addr_t type which is defined in
types.h. It wasn't including that explicitly, and was working presumably
because the other files including it had already included types.h themselves
directly or indirectly. This change fixes that.
Signed-off-by: Gabe Black <gabeblack@chromium.org>
Signed-off-by: Simon Glass <sjg@chromium.org>
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These are available on other architectures, so add them on x86.
Signed-off-by: Simon Glass <sjg@chromium.org>
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Signed-off-by: Graeme Russ <graeme.russ@gmail.com>
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