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author | Peter De Schrijver <pdeschrijver@nvidia.com> | 2014-06-12 18:36:37 +0300 |
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committer | Thierry Reding <treding@nvidia.com> | 2014-07-17 14:36:01 +0200 |
commit | 783c8f4c84451bc444e314a71b447239c6ef6fd9 (patch) | |
tree | ccf8ed545ac850e06d3e781a99769bd0ea43c597 /drivers/soc/tegra/fuse/fuse.h | |
parent | 35874f3617b38e0c1f72163407c41d554a8f5939 (diff) | |
download | linux-stable-783c8f4c84451bc444e314a71b447239c6ef6fd9.tar.gz linux-stable-783c8f4c84451bc444e314a71b447239c6ef6fd9.tar.bz2 linux-stable-783c8f4c84451bc444e314a71b447239c6ef6fd9.zip |
soc/tegra: Add efuse driver for Tegra
Implement fuse driver for Tegra20, Tegra30, Tegra114 and Tegra124. This
replaces functionality previously provided in arch/arm/mach-tegra, which
is removed in this patch.
While at it, move the only user of the global tegra_revision variable
over to tegra_sku_info.revision and export tegra_fuse_readl() to allow
drivers to read calibration fuses.
Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Diffstat (limited to 'drivers/soc/tegra/fuse/fuse.h')
-rw-r--r-- | drivers/soc/tegra/fuse/fuse.h | 71 |
1 files changed, 71 insertions, 0 deletions
diff --git a/drivers/soc/tegra/fuse/fuse.h b/drivers/soc/tegra/fuse/fuse.h new file mode 100644 index 000000000000..b3442770df09 --- /dev/null +++ b/drivers/soc/tegra/fuse/fuse.h @@ -0,0 +1,71 @@ +/* + * Copyright (C) 2010 Google, Inc. + * Copyright (c) 2013, NVIDIA CORPORATION. All rights reserved. + * + * Author: + * Colin Cross <ccross@android.com> + * + * This software is licensed under the terms of the GNU General Public + * License version 2, as published by the Free Software Foundation, and + * may be copied, distributed, and modified under those terms. + * + * This program is distributed in the hope that 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. + * + */ + +#ifndef __DRIVERS_MISC_TEGRA_FUSE_H +#define __DRIVERS_MISC_TEGRA_FUSE_H + +#define TEGRA_FUSE_BASE 0x7000f800 +#define TEGRA_FUSE_SIZE 0x400 + +int tegra_fuse_create_sysfs(struct device *dev, int size, + u32 (*readl)(const unsigned int offset)); + +bool tegra30_spare_fuse(int bit); +u32 tegra30_fuse_readl(const unsigned int offset); +void tegra30_init_fuse_early(void); +void tegra_init_revision(void); +void tegra_init_apbmisc(void); + +#ifdef CONFIG_ARCH_TEGRA_2x_SOC +void tegra20_init_speedo_data(struct tegra_sku_info *sku_info); +bool tegra20_spare_fuse_early(int spare_bit); +void tegra20_init_fuse_early(void); +u32 tegra20_fuse_early(const unsigned int offset); +#else +static inline void tegra20_init_speedo_data(struct tegra_sku_info *sku_info) {} +static inline bool tegra20_spare_fuse_early(int spare_bit, void *fuse_base) +{ + return false; +} +static inline void tegra20_init_fuse_early(void); +static inline tegra20_fuse_early(const unsigned int offset); +{ + return 0; +} +#endif + + +#ifdef CONFIG_ARCH_TEGRA_3x_SOC +void tegra30_init_speedo_data(struct tegra_sku_info *sku_info); +#else +static inline void tegra30_init_speedo_data(struct tegra_sku_info *sku_info) {} +#endif + +#ifdef CONFIG_ARCH_TEGRA_114_SOC +void tegra114_init_speedo_data(struct tegra_sku_info *sku_info); +#else +static inline void tegra114_init_speedo_data(struct tegra_sku_info *sku_info) {} +#endif + +#ifdef CONFIG_ARCH_TEGRA_124_SOC +void tegra124_init_speedo_data(struct tegra_sku_info *sku_info); +#else +static inline void tegra124_init_speedo_data(struct tegra_sku_info *sku_info) {} +#endif + +#endif |