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Commit 2e130fc3 authored by Kan-Ru Chen's avatar Kan-Ru Chen Committed by Tony Lindgren
Browse files

omap: Add new interface omap_get_die_id 



Allow DIE id to be get and used by others.

Signed-off-by: default avatarKan-Ru Chen <kanru@0xlab.org>
Signed-off-by: default avatarTony Lindgren <tony@atomide.com>
parent ad0c63f1

arch/arm/mach-omap2/id.c

+10 −0
Original line number Diff line number Diff line
@@ -25,6 +25,8 @@ 
#include <plat/control.h>

#include <plat/cpu.h>



#include <mach/id.h>



static struct omap_chip_id omap_chip;

static unsigned int omap_revision;
@@ -102,6 +104,14 @@ static struct omap_id omap_ids[] __initdata = { 
static void __iomem *tap_base;

static u16 tap_prod_id;



void omap_get_die_id(struct omap_die_id *odi)

{

	odi->id_0 = read_tap_reg(OMAP_TAP_DIE_ID_0);

	odi->id_1 = read_tap_reg(OMAP_TAP_DIE_ID_1);

	odi->id_2 = read_tap_reg(OMAP_TAP_DIE_ID_2);

	odi->id_3 = read_tap_reg(OMAP_TAP_DIE_ID_3);

}



static void __init omap24xx_check_revision(void)

{

	int i, j;

arch/arm/mach-omap2/include/mach/id.h

0 → 100644
+22 −0
Original line number Diff line number Diff line 
/*

 * OMAP2 CPU identification code

 *

 * Copyright (C) 2010 Kan-Ru Chen <kanru@0xlab.org>

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License version 2 as

 * published by the Free Software Foundation.

 */

#ifndef OMAP2_ARCH_ID_H

#define OMAP2_ARCH_ID_H



struct omap_die_id {

	u32 id_0;

	u32 id_1;

	u32 id_2;

	u32 id_3;

};



void omap_get_die_id(struct omap_die_id *odi);



#endif