From: Kan-Ru Chen Date: Mon, 2 Aug 2010 11:21:41 +0000 (+0300) Subject: omap: Add new interface omap_get_die_id X-Git-Tag: firefly_0821_release~9833^2~1223^2~17^2~2 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=2e130fc3d4fd5b38ee5d3c0a5c7f9fb85bce698e;p=firefly-linux-kernel-4.4.55.git omap: Add new interface omap_get_die_id Allow DIE id to be get and used by others. Signed-off-by: Kan-Ru Chen Signed-off-by: Tony Lindgren --- diff --git a/arch/arm/mach-omap2/id.c b/arch/arm/mach-omap2/id.c index ccaa1ed8e0f1..d079ccfa294e 100644 --- a/arch/arm/mach-omap2/id.c +++ b/arch/arm/mach-omap2/id.c @@ -25,6 +25,8 @@ #include #include +#include + 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; diff --git a/arch/arm/mach-omap2/include/mach/id.h b/arch/arm/mach-omap2/include/mach/id.h new file mode 100644 index 000000000000..02ed3aa56f1e --- /dev/null +++ b/arch/arm/mach-omap2/include/mach/id.h @@ -0,0 +1,22 @@ +/* + * OMAP2 CPU identification code + * + * Copyright (C) 2010 Kan-Ru Chen + * + * 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