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Revision debe6a623d3cdc7f0374124830587fb8d1a04b63 authored by David Daney on 15 January 2015, 13:11:14 UTC, committed by Ralf Baechle on 20 February 2015, 14:31:43 UTC 
MIPS: OCTEON: Update octeon-model.h code for new SoCs.
 
Add coverage for OCTEON III models.

Signed-off-by: David Daney <david.daney@cavium.com>
Signed-off-by: Aleksey Makarov <aleksey.makarov@auriga.com>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/8942/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
1 parent e3d0ead
Raw File
check_signature.c 
#include <linux/io.h>
#include <linux/export.h>

/**
 *	check_signature		-	find BIOS signatures
 *	@io_addr: mmio address to check
 *	@signature:  signature block
 *	@length: length of signature
 *
 *	Perform a signature comparison with the mmio address io_addr. This
 *	address should have been obtained by ioremap.
 *	Returns 1 on a match.
 */

int check_signature(const volatile void __iomem *io_addr,
			const unsigned char *signature, int length)
{
	while (length--) {
		if (readb(io_addr) != *signature)
			return 0;
		io_addr++;
		signature++;
	}
	return 1;
}
EXPORT_SYMBOL(check_signature);
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