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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 commit7dea1b2006
An undefined reference to elf_hwcap prevents linkage, due to changes made byf884b1cf57
andd1cbbd6b41
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>
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@ -26,7 +26,6 @@
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#define __MXC_BOOT_UNCOMPRESS
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#include <asm/hardware.h>
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#include <asm/processor.h>
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#define UART(x) (*(volatile unsigned long *)(serial_port + (x)))
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@ -62,7 +61,7 @@ static void putc(int ch)
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}
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while (!(UART(USR2) & USR2_TXFE))
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cpu_relax();
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barrier();
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UART(TXR) = ch;
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}
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