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/* SPDX-License-Identifier: GPL-2.0+ */
#ifndef __CF_FSI_FW_H
#define __CF_FSI_FW_H
/*
* uCode file layout
*
* 0000...03ff : m68k exception vectors
* 0400...04ff : Header info & boot config block
* 0500....... : Code & stack
*/
/*
* Header info & boot config area
*
* The Header info is built into the ucode and provide version and
* platform information.
*
* the Boot config needs to be adjusted by the ARM prior to starting
* the ucode if the Command/Status area isn't at 0x320000 in CF space
* (ie. beginning of SRAM).
*/
#define HDR_OFFSET 0x400
/* Info: Signature & version */
#define HDR_SYS_SIG 0x00 /* 2 bytes system signature */
#define SYS_SIG_SHARED 0x5348
#define SYS_SIG_SPLIT 0x5350
#define HDR_FW_VERS 0x02 /* 2 bytes Major.Minor */
#define HDR_API_VERS 0x04 /* 2 bytes Major.Minor */
#define API_VERSION_MAJ 2 /* Current version */
#define API_VERSION_MIN 1
#define HDR_FW_OPTIONS 0x08 /* 4 bytes option flags */
#define FW_OPTION_TRACE_EN 0x00000001 /* FW tracing enabled */
#define FW_OPTION_CONT_CLOCK 0x00000002 /* Continuous clocking supported */
#define HDR_FW_SIZE 0x10 /* 4 bytes size for combo image */
/* Boot Config: Address of Command/Status area */
#define HDR_CMD_STAT_AREA 0x80 /* 4 bytes CF address */
#define HDR_FW_CONTROL 0x84 /* 4 bytes control flags */
#define FW_CONTROL_CONT_CLOCK 0x00000002 /* Continuous clocking enabled */
#define FW_CONTROL_DUMMY_RD 0x00000004 /* Extra dummy read (AST2400) */
#define FW_CONTROL_USE_STOP 0x00000008 /* Use STOP instructions */
#define HDR_CLOCK_GPIO_VADDR 0x90 /* 2 bytes offset from GPIO base */
#define HDR_CLOCK_GPIO_DADDR 0x92 /* 2 bytes offset from GPIO base */
#define HDR_DATA_GPIO_VADDR 0x94 /* 2 bytes offset from GPIO base */
#define HDR_DATA_GPIO_DADDR 0x96 /* 2 bytes offset from GPIO base */
#define HDR_TRANS_GPIO_VADDR 0x98 /* 2 bytes offset from GPIO base */
#define HDR_TRANS_GPIO_DADDR 0x9a /* 2 bytes offset from GPIO base */
#define HDR_CLOCK_GPIO_BIT 0x9c /* 1 byte bit number */
#define HDR_DATA_GPIO_BIT 0x9d /* 1 byte bit number */
#define HDR_TRANS_GPIO_BIT 0x9e /* 1 byte bit number */
/*
* Command/Status area layout: Main part
*/
/* Command/Status register:
*
* +---------------------------+
* | STAT | RLEN | CLEN | CMD |
* | 8 | 8 | 8 | 8 |
* +---------------------------+
* | | | |
* status | | |
* Response len | |
* (in bits) | |
* | |
* Command len |
* (in bits) |
* |
* Command code
*
* Due to the big endian layout, that means that a byte read will
* return the status byte
*/
#define CMD_STAT_REG 0x00
#define CMD_REG_CMD_MASK 0x000000ff
#define CMD_REG_CMD_SHIFT 0
#define CMD_NONE 0x00
#define CMD_COMMAND 0x01
#define CMD_BREAK 0x02
#define CMD_IDLE_CLOCKS 0x03 /* clen = #clocks */
#define CMD_INVALID 0xff
#define CMD_REG_CLEN_MASK 0x0000ff00
#define CMD_REG_CLEN_SHIFT 8
#define CMD_REG_RLEN_MASK 0x00ff0000
#define CMD_REG_RLEN_SHIFT 16
#define CMD_REG_STAT_MASK 0xff000000
#define CMD_REG_STAT_SHIFT 24
#define STAT_WORKING 0x00
#define STAT_COMPLETE 0x01
#define STAT_ERR_INVAL_CMD 0x80
#define STAT_ERR_INVAL_IRQ 0x81
#define STAT_ERR_MTOE 0x82
/* Response tag & CRC */
#define STAT_RTAG 0x04
/* Response CRC */
#define STAT_RCRC 0x05
/* Echo and Send delay */
#define ECHO_DLY_REG 0x08
#define SEND_DLY_REG 0x09
/* Command data area
*
* Last byte of message must be left aligned
*/
#define CMD_DATA 0x10 /* 64 bit of data */
/* Response data area, right aligned, unused top bits are 1 */
#define RSP_DATA 0x20 /* 32 bit of data */
/* Misc */
#define INT_CNT 0x30 /* 32-bit interrupt count */
#define BAD_INT_VEC 0x34 /* 32-bit bad interrupt vector # */
#define CF_STARTED 0x38 /* byte, set to -1 when copro started */
#define CLK_CNT 0x3c /* 32-bit, clock count (debug only) */
/*
* SRAM layout: GPIO arbitration part
*/
#define ARB_REG 0x40
#define ARB_ARM_REQ 0x01
#define ARB_ARM_ACK 0x02
/* Misc2 */
#define CF_RESET_D0 0x50
#define CF_RESET_D1 0x54
#define BAD_INT_S0 0x58
#define BAD_INT_S1 0x5c
#define STOP_CNT 0x60
/* Internal */
/*
* SRAM layout: Trace buffer (debug builds only)
*/
#define TRACEBUF 0x100
#define TR_CLKOBIT0 0xc0
#define TR_CLKOBIT1 0xc1
#define TR_CLKOSTART 0x82
#define TR_OLEN 0x83 /* + len */
#define TR_CLKZ 0x84 /* + count */
#define TR_CLKWSTART 0x85
#define TR_CLKTAG 0x86 /* + tag */
#define TR_CLKDATA 0x87 /* + len */
#define TR_CLKCRC 0x88 /* + raw crc */
#define TR_CLKIBIT0 0x90
#define TR_CLKIBIT1 0x91
#define TR_END 0xff
#endif /* __CF_FSI_FW_H */
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