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[ARM] 4530/1: MXC: fix elf_hwcap compile breakage as in iop13xx 

MXC needs the same change as IOP.  See [ARM] 4494/1
or commit 7dea1b2006

An undefined reference to elf_hwcap prevents linkage, due
to changes made by f884b1cf57
and d1cbbd6b41

Removing processor.h removes the extern definition of
elf_hwcap, which fixes the link issue, but forgets cpu_relax().
So, instead, we'll call barrier() directly.

Cc: Lennert Buytenhek <kernel@wantstofly.org>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Acked-by: Ross Wille <wille@freescale.com>
Signed-off-by: Quinn Jensen <quinn.jensen@freescale.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
hifive-unleashed-5.1
Quinn Jensen 2007-07-27 23:30:55 +01:00 committed by Russell King
parent cc46f65970
commit 03e5386e1e
1 changed files with 1 additions and 2 deletions
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3
include/asm-arm/arch-mxc/uncompress.h
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@ -26,7 +26,6 @@
#define __MXC_BOOT_UNCOMPRESS
#include <asm/hardware.h>
#include <asm/processor.h>
#define UART(x) (*(volatile unsigned long *)(serial_port + (x)))
@ -62,7 +61,7 @@ static void putc(int ch)
}
while (!(UART(USR2) & USR2_TXFE))
cpu_relax();
barrier();
UART(TXR) = ch;
}