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1/* SPDX-License-Identifier: GPL-2.0+ */
2#ifndef __CF_FSI_FW_H
3#define __CF_FSI_FW_H
4
5/*
6 * uCode file layout
7 *
8 * 0000...03ff : m68k exception vectors
9 * 0400...04ff : Header info & boot config block
10 * 0500....... : Code & stack
11 */
12
13/*
14 * Header info & boot config area
15 *
16 * The Header info is built into the ucode and provide version and
17 * platform information.
18 *
19 * the Boot config needs to be adjusted by the ARM prior to starting
20 * the ucode if the Command/Status area isn't at 0x320000 in CF space
21 * (ie. beginning of SRAM).
22 */
23
24#define HDR_OFFSET 0x400
25
26/* Info: Signature & version */
27#define HDR_SYS_SIG 0x00 /* 2 bytes system signature */
28#define SYS_SIG_SHARED 0x5348
29#define SYS_SIG_SPLIT 0x5350
30#define HDR_FW_VERS 0x02 /* 2 bytes Major.Minor */
31#define HDR_API_VERS 0x04 /* 2 bytes Major.Minor */
32#define API_VERSION_MAJ 2 /* Current version */
33#define API_VERSION_MIN 1
34#define HDR_FW_OPTIONS 0x08 /* 4 bytes option flags */
35#define FW_OPTION_TRACE_EN 0x00000001 /* FW tracing enabled */
36#define FW_OPTION_CONT_CLOCK 0x00000002 /* Continuous clocking supported */
37#define HDR_FW_SIZE 0x10 /* 4 bytes size for combo image */
38
39/* Boot Config: Address of Command/Status area */
40#define HDR_CMD_STAT_AREA 0x80 /* 4 bytes CF address */
41#define HDR_FW_CONTROL 0x84 /* 4 bytes control flags */
42#define FW_CONTROL_CONT_CLOCK 0x00000002 /* Continuous clocking enabled */
43#define FW_CONTROL_DUMMY_RD 0x00000004 /* Extra dummy read (AST2400) */
44#define FW_CONTROL_USE_STOP 0x00000008 /* Use STOP instructions */
45#define HDR_CLOCK_GPIO_VADDR 0x90 /* 2 bytes offset from GPIO base */
46#define HDR_CLOCK_GPIO_DADDR 0x92 /* 2 bytes offset from GPIO base */
47#define HDR_DATA_GPIO_VADDR 0x94 /* 2 bytes offset from GPIO base */
48#define HDR_DATA_GPIO_DADDR 0x96 /* 2 bytes offset from GPIO base */
49#define HDR_TRANS_GPIO_VADDR 0x98 /* 2 bytes offset from GPIO base */
50#define HDR_TRANS_GPIO_DADDR 0x9a /* 2 bytes offset from GPIO base */
51#define HDR_CLOCK_GPIO_BIT 0x9c /* 1 byte bit number */
52#define HDR_DATA_GPIO_BIT 0x9d /* 1 byte bit number */
53#define HDR_TRANS_GPIO_BIT 0x9e /* 1 byte bit number */
54
55/*
56 * Command/Status area layout: Main part
57 */
58
59/* Command/Status register:
60 *
61 * +---------------------------+
62 * | STAT | RLEN | CLEN | CMD |
63 * | 8 | 8 | 8 | 8 |
64 * +---------------------------+
65 * | | | |
66 * status | | |
67 * Response len | |
68 * (in bits) | |
69 * | |
70 * Command len |
71 * (in bits) |
72 * |
73 * Command code
74 *
75 * Due to the big endian layout, that means that a byte read will
76 * return the status byte
77 */
78#define CMD_STAT_REG 0x00
79#define CMD_REG_CMD_MASK 0x000000ff
80#define CMD_REG_CMD_SHIFT 0
81#define CMD_NONE 0x00
82#define CMD_COMMAND 0x01
83#define CMD_BREAK 0x02
84#define CMD_IDLE_CLOCKS 0x03 /* clen = #clocks */
85#define CMD_INVALID 0xff
86#define CMD_REG_CLEN_MASK 0x0000ff00
87#define CMD_REG_CLEN_SHIFT 8
88#define CMD_REG_RLEN_MASK 0x00ff0000
89#define CMD_REG_RLEN_SHIFT 16
90#define CMD_REG_STAT_MASK 0xff000000
91#define CMD_REG_STAT_SHIFT 24
92#define STAT_WORKING 0x00
93#define STAT_COMPLETE 0x01
94#define STAT_ERR_INVAL_CMD 0x80
95#define STAT_ERR_INVAL_IRQ 0x81
96#define STAT_ERR_MTOE 0x82
97
98/* Response tag & CRC */
99#define STAT_RTAG 0x04
100
101/* Response CRC */
102#define STAT_RCRC 0x05
103
104/* Echo and Send delay */
105#define ECHO_DLY_REG 0x08
106#define SEND_DLY_REG 0x09
107
108/* Command data area
109 *
110 * Last byte of message must be left aligned
111 */
112#define CMD_DATA 0x10 /* 64 bit of data */
113
114/* Response data area, right aligned, unused top bits are 1 */
115#define RSP_DATA 0x20 /* 32 bit of data */
116
117/* Misc */
118#define INT_CNT 0x30 /* 32-bit interrupt count */
119#define BAD_INT_VEC 0x34 /* 32-bit bad interrupt vector # */
120#define CF_STARTED 0x38 /* byte, set to -1 when copro started */
121#define CLK_CNT 0x3c /* 32-bit, clock count (debug only) */
122
123/*
124 * SRAM layout: GPIO arbitration part
125 */
126#define ARB_REG 0x40
127#define ARB_ARM_REQ 0x01
128#define ARB_ARM_ACK 0x02
129
130/* Misc2 */
131#define CF_RESET_D0 0x50
132#define CF_RESET_D1 0x54
133#define BAD_INT_S0 0x58
134#define BAD_INT_S1 0x5c
135#define STOP_CNT 0x60
136
137/* Internal */
138
139/*
140 * SRAM layout: Trace buffer (debug builds only)
141 */
142#define TRACEBUF 0x100
143#define TR_CLKOBIT0 0xc0
144#define TR_CLKOBIT1 0xc1
145#define TR_CLKOSTART 0x82
146#define TR_OLEN 0x83 /* + len */
147#define TR_CLKZ 0x84 /* + count */
148#define TR_CLKWSTART 0x85
149#define TR_CLKTAG 0x86 /* + tag */
150#define TR_CLKDATA 0x87 /* + len */
151#define TR_CLKCRC 0x88 /* + raw crc */
152#define TR_CLKIBIT0 0x90
153#define TR_CLKIBIT1 0x91
154#define TR_END 0xff
155
156#endif /* __CF_FSI_FW_H */
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