diff options
| -rw-r--r-- | arch/arm/mach-tegra/fuse.c | 8 | ||||
| -rw-r--r-- | include/linux/tegra-soc.h | 22 |
2 files changed, 29 insertions, 1 deletions
diff --git a/arch/arm/mach-tegra/fuse.c b/arch/arm/mach-tegra/fuse.c index 8121742711fe..f7db0782a6b6 100644 --- a/arch/arm/mach-tegra/fuse.c +++ b/arch/arm/mach-tegra/fuse.c @@ -20,6 +20,7 @@ #include <linux/kernel.h> #include <linux/io.h> #include <linux/export.h> +#include <linux/tegra-soc.h> #include "fuse.h" #include "iomap.h" @@ -105,6 +106,11 @@ static void tegra_get_process_id(void) tegra_core_process_id = (reg >> 12) & 3; } +u32 tegra_read_chipid(void) +{ + return readl_relaxed(IO_ADDRESS(TEGRA_APB_MISC_BASE) + 0x804); +} + void tegra_init_fuse(void) { u32 id; @@ -119,7 +125,7 @@ void tegra_init_fuse(void) reg = tegra_apb_readl(TEGRA_APB_MISC_BASE + STRAP_OPT); tegra_bct_strapping = (reg & RAM_ID_MASK) >> RAM_CODE_SHIFT; - id = readl_relaxed(IO_ADDRESS(TEGRA_APB_MISC_BASE) + 0x804); + id = tegra_read_chipid(); tegra_chip_id = (id >> 8) & 0xff; switch (tegra_chip_id) { diff --git a/include/linux/tegra-soc.h b/include/linux/tegra-soc.h new file mode 100644 index 000000000000..95f611d78f3a --- /dev/null +++ b/include/linux/tegra-soc.h @@ -0,0 +1,22 @@ +/* + * Copyright (c) 2012, NVIDIA CORPORATION. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + */ + +#ifndef __LINUX_TEGRA_SOC_H_ +#define __LINUX_TEGRA_SOC_H_ + +u32 tegra_read_chipid(void); + +#endif /* __LINUX_TEGRA_SOC_H_ */ |