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| author | Kan-Ru Chen <kanru@0xlab.org> | 2010-08-02 14:21:41 +0300 |
|---|---|---|
| committer | Tony Lindgren <tony@atomide.com> | 2010-08-02 14:21:41 +0300 |
| commit | 2e130fc3d4fd5b38ee5d3c0a5c7f9fb85bce698e (patch) | |
| tree | c0d9f4d97d17d74e71f5fde9534fdc6380a914ed /arch/arm/mach-omap2 | |
| parent | ad0c63f1d623ea9d3e0c0521d5ce9cd522c4e1f0 (diff) | |
| download | kernel_samsung_smdk4412-2e130fc3d4fd5b38ee5d3c0a5c7f9fb85bce698e.zip kernel_samsung_smdk4412-2e130fc3d4fd5b38ee5d3c0a5c7f9fb85bce698e.tar.gz kernel_samsung_smdk4412-2e130fc3d4fd5b38ee5d3c0a5c7f9fb85bce698e.tar.bz2 | |
omap: Add new interface omap_get_die_id
Allow DIE id to be get and used by others.
Signed-off-by: Kan-Ru Chen <kanru@0xlab.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Diffstat (limited to 'arch/arm/mach-omap2')
| -rw-r--r-- | arch/arm/mach-omap2/id.c | 10 | ||||
| -rw-r--r-- | arch/arm/mach-omap2/include/mach/id.h | 22 |
2 files changed, 32 insertions, 0 deletions
diff --git a/arch/arm/mach-omap2/id.c b/arch/arm/mach-omap2/id.c index ccaa1ed..d079ccf 100644 --- a/arch/arm/mach-omap2/id.c +++ b/arch/arm/mach-omap2/id.c @@ -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; 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 0000000..02ed3aa --- /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 <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 |