Dmitry Osipenko
560a1521ae
All NVIDIA Tegra devices use a special partition table format for the internal storage partitioning. Most of Tegra devices have GPT partition in addition to TegraPT, but some older Android consumer-grade devices do not or GPT is placed in a wrong sector, and thus, the TegraPT is needed in order to support these devices properly by the upstream kernel. This patch adds support for NVIDIA Tegra Partition Table format that is used at least by all NVIDIA Tegra20 and Tegra30 devices. Tested-by: Nils Östlund <nils@naltan.com> Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
85 lines
2.0 KiB
C
85 lines
2.0 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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#ifndef __SOC_TEGRA_PARTITION_H__
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#define __SOC_TEGRA_PARTITION_H__
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#include <linux/compiler.h>
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#include <linux/types.h>
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#define TEGRA_PT_MAGIC 0xffffffff8f9e8d8bULL
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#define TEGRA_PT_VERSION 0x100
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#define TEGRA_PT_AES_HASH_SIZE 4
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#define TEGRA_PT_NAME_SIZE 4
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#define TEGRA_PT_SDHCI_DEVICE_ID 18
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#define TEGRA_PT_SDHCI_DEVICE_INSTANCES 4
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#define TEGRA_PT_PART_TYPE_BCT 1
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#define TEGRA_PT_PART_TYPE_EBT 2
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#define TEGRA_PT_PART_TYPE_PT 3
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#define TEGRA_PT_PART_TYPE_GENERIC 6
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#define TEGRA_PT_PART_TYPE_GP1 9
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#define TEGRA_PT_PART_TYPE_GPT 10
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struct tegra_partition_mount_info {
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u32 device_id;
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u32 device_instance;
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u32 device_attr;
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u8 mount_path[TEGRA_PT_NAME_SIZE];
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u32 file_system_type;
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u32 file_system_attr;
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} __packed;
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struct tegra_partition_info {
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u32 partition_attr;
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u32 __pad1;
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u64 logical_sector_address;
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u64 logical_sectors_num;
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u64 physical_sector_address;
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u64 physical_sectors_num;
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u32 partition_type;
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u32 __pad2;
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} __packed;
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struct tegra_partition {
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u32 partition_id;
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u8 partition_name[TEGRA_PT_NAME_SIZE];
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struct tegra_partition_mount_info mount_info;
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struct tegra_partition_info part_info;
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} __packed;
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struct tegra_partition_header_insecure {
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u64 magic;
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u32 version;
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u32 length;
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u32 signature[TEGRA_PT_AES_HASH_SIZE];
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} __packed;
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struct tegra_partition_header_secure {
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u32 random_data[TEGRA_PT_AES_HASH_SIZE];
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u64 magic;
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u32 version;
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u32 length;
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u32 num_partitions;
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u32 __pad;
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} __packed;
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struct tegra_partition_table {
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struct tegra_partition_header_insecure insecure;
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struct tegra_partition_header_secure secure;
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struct tegra_partition partitions[];
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} __packed;
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#ifdef CONFIG_TEGRA_PARTITION
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void tegra_partition_table_setup(unsigned int logical_sector_address,
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unsigned int logical_sectors_num);
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#else
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static inline void
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tegra_partition_table_setup(unsigned int logical_sector_address,
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unsigned int logical_sectors_num)
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{
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}
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#endif
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#endif /* __SOC_TEGRA_PARTITION_H__ */
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