1 /* 2 * Copyright (c) 2012, NVIDIA CORPORATION. All rights reserved. 3 * 4 * This program is free software; you can redistribute it and/or modify it 5 * under the terms and conditions of the GNU General Public License, 6 * version 2, as published by the Free Software Foundation. 7 * 8 * This program is distributed in the hope it will be useful, but WITHOUT 9 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 10 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for 11 * more details. 12 * 13 * You should have received a copy of the GNU General Public License 14 * along with this program. If not, see <http://www.gnu.org/licenses/>. 15 */ 16 17 #ifndef __SOC_TEGRA_FUSE_H__ 18 #define __SOC_TEGRA_FUSE_H__ 19 20 #define TEGRA20 0x20 21 #define TEGRA30 0x30 22 #define TEGRA114 0x35 23 #define TEGRA124 0x40 24 25 #ifndef __ASSEMBLY__ 26 27 u32 tegra_read_chipid(void); 28 u8 tegra_get_chip_id(void); 29 30 enum tegra_revision { 31 TEGRA_REVISION_UNKNOWN = 0, 32 TEGRA_REVISION_A01, 33 TEGRA_REVISION_A02, 34 TEGRA_REVISION_A03, 35 TEGRA_REVISION_A03p, 36 TEGRA_REVISION_A04, 37 TEGRA_REVISION_MAX, 38 }; 39 40 u32 tegra_read_straps(void); 41 u32 tegra_read_chipid(void); 42 void tegra_init_fuse(void); 43 44 extern enum tegra_revision tegra_revision; 45 46 #if defined(CONFIG_TEGRA20_APB_DMA) 47 int tegra_apb_readl_using_dma(unsigned long offset, u32 *value); 48 int tegra_apb_writel_using_dma(u32 value, unsigned long offset); 49 #else 50 static inline int tegra_apb_readl_using_dma(unsigned long offset, u32 *value) 51 { 52 return -EINVAL; 53 } 54 static inline int tegra_apb_writel_using_dma(u32 value, unsigned long offset) 55 { 56 return -EINVAL; 57 } 58 #endif /* CONFIG_TEGRA20_APB_DMA */ 59 60 #endif /* __ASSEMBLY__ */ 61 62 #endif /* __SOC_TEGRA_FUSE_H__ */ 63