diff options
Diffstat (limited to 'cf-fsi-fw.h')
| -rw-r--r-- | cf-fsi-fw.h | 85 |
1 files changed, 54 insertions, 31 deletions
diff --git a/cf-fsi-fw.h b/cf-fsi-fw.h index 4942901..0c4453f 100644 --- a/cf-fsi-fw.h +++ b/cf-fsi-fw.h @@ -2,16 +2,52 @@ #define __CF_FSI_FW_H /* - * SRAM layout: Main part + * uCode file layout + * + * 0000...03ff : m68k exception vectors + * 0400...04ff : Header info & boot config block + * 0500....... : Code & stack */ -/* Command register: +/* + * 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_ROMULUS 0x526d /* 'Rm' */ +#define SYS_SIG_WITHERSPOON 0x5773 /* 'Ws' */ +#define HDR_FW_VERS 0x02 /* 2 bytes Major.Minor */ +#define HDR_API_VERS 0x04 /* 2 bytes Major.Minor */ +#define API_VERSION_MAJ 1 /* 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 */ + +/* Boot Config: Address of Command/Status area */ +#define HDR_CMD_STAT_AREA 0x80 /* 4 bytes CF address */ + +/* + * Command/Status area layout: Main part + */ + +/* Command/Status register: * * +---------------------------+ - * | rsvd | RLEN | CLEN | CMD | + * | STAT | RLEN | CLEN | CMD | * | 8 | 8 | 8 | 8 | * +---------------------------+ - * | | | + * | | | | + * status | | | * Response len | | * (in bits) | | * | | @@ -19,8 +55,11 @@ * (in bits) | * | * Command code + * + * Due to the big endian layout, that means that a byte read will + * return the status byte */ -#define CMD_REG 0x00 +#define CMD_STAT_REG 0x00 #define CMD_REG_CMD_MASK 0x000000ff #define CMD_REG_CMD_SHIFT 0 #define CMD_NONE 0x00 @@ -32,40 +71,24 @@ #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 -/* Status register - * - */ -#define STAT_REG 0x04 /* Status */ -#define STAT_STOPPED 0x00 -#define STAT_SENDING 0x01 -#define STAT_COMPLETE 0x02 -#define STAT_ERR_INVAL_CMD 0x80 -#define STAT_ERR_INVAL_IRQ 0x81 -#define STAT_ERR_MTOE 0x82 - -/* Response tag */ -#define STAT_RTAG 0x05 +/* Response tag & CRC */ +#define STAT_RTAG 0x04 /* Response CRC */ -#define STAT_RCRC 0x06 +#define STAT_RCRC 0x05 /* Echo and Send delay */ #define ECHO_DLY_REG 0x08 #define SEND_DLY_REG 0x09 -/* Signature & version */ -#define SYS_SIG_REG 0x0c /* 2 bytes system signature */ -#define SYS_SIG_ROMULUS 0x526d /* 'Rm' */ -#define SYS_SIG_WITHERSPOON 0x5773 /* 'Ws' */ -#define FW_VERS_REG 0x0e -#define API_VERS_REG 0x0f - -/* Current API version */ -#define API_VERSION_MASK 0x7f -#define API_VERSION 1 -#define API_VERSION_TRACE_EN 0x80 - /* Command data area * * Last byte of message must be left aligned |
