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mcp251xfd-dump: add tool to decode chip and driver state of mcp251xfd

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It works on dev coredump data generated by the mcp251xfd driver in
case of failures, as well as on regmap based register dumps.

Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
This commit is contained in:
Marc Kleine-Budde
2021-02-13 23:36:43 +01:00
parent e8c90ddff9
commit 66de96d337
13 changed files with 1913 additions and 1 deletions
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mcp251xfd/mcp251xfd-dump.h
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/* SPDX-License-Identifier: GPL-2.0
*
* mcp251xfd - Microchip MCP251xFD Family CAN controller driver
*
* Copyright (c) 2019, 2020, 2021 Pengutronix,
* Marc Kleine-Budde <kernel@pengutronix.de>
*/
#ifndef _MCP251XFD_DUMP_H
#define _MCP251XFD_DUMP_H
#define MCP251XFD_DUMP_MAGIC 0x1825434d
enum mcp251xfd_dump_object_type {
MCP251XFD_DUMP_OBJECT_TYPE_REG,
MCP251XFD_DUMP_OBJECT_TYPE_TEF,
MCP251XFD_DUMP_OBJECT_TYPE_RX,
MCP251XFD_DUMP_OBJECT_TYPE_TX,
MCP251XFD_DUMP_OBJECT_TYPE_END = -1,
};
enum mcp251xfd_dump_object_ring_key {
MCP251XFD_DUMP_OBJECT_RING_KEY_HEAD,
MCP251XFD_DUMP_OBJECT_RING_KEY_TAIL,
MCP251XFD_DUMP_OBJECT_RING_KEY_BASE,
MCP251XFD_DUMP_OBJECT_RING_KEY_NR,
MCP251XFD_DUMP_OBJECT_RING_KEY_FIFO_NR,
MCP251XFD_DUMP_OBJECT_RING_KEY_OBJ_NUM,
MCP251XFD_DUMP_OBJECT_RING_KEY_OBJ_SIZE,
__MCP251XFD_DUMP_OBJECT_RING_KEY_MAX,
};
struct mcp251xfd_dump_object_header {
__le32 magic;
__le32 type;
__le32 offset;
__le32 len;
};
struct mcp251xfd_dump_object_reg {
__le32 reg;
__le32 val;
};
#endif