1 /* SPDX-License-Identifier: GPL-2.0+ */
8 * 0000...03ff : m68k exception vectors
9 * 0400...04ff : Header info & boot config block
10 * 0500....... : Code & stack
14 * Header info & boot config area
16 * The Header info is built into the ucode and provide version and
17 * platform information.
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).
24 #define HDR_OFFSET 0x400
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 */
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 */
56 * Command/Status area layout: Main part
59 /* Command/Status register:
61 * +---------------------------+
62 * | STAT | RLEN | CLEN | CMD |
64 * +---------------------------+
75 * Due to the big endian layout, that means that a byte read will
76 * return the status byte
78 #define CMD_STAT_REG 0x00
79 #define CMD_REG_CMD_MASK 0x000000ff
80 #define CMD_REG_CMD_SHIFT 0
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
98 /* Response tag & CRC */
99 #define STAT_RTAG 0x04
102 #define STAT_RCRC 0x05
104 /* Echo and Send delay */
105 #define ECHO_DLY_REG 0x08
106 #define SEND_DLY_REG 0x09
110 * Last byte of message must be left aligned
112 #define CMD_DATA 0x10 /* 64 bit of data */
114 /* Response data area, right aligned, unused top bits are 1 */
115 #define RSP_DATA 0x20 /* 32 bit of data */
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) */
124 * SRAM layout: GPIO arbitration part
127 #define ARB_ARM_REQ 0x01
128 #define ARB_ARM_ACK 0x02
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
140 * SRAM layout: Trace buffer (debug builds only)
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
156 #endif /* __CF_FSI_FW_H */