bios.h

Compex BIOS for SAMSUNG S3C4510B v1.20-lt

#ifndef __BIOS_H
#define __BIOS_H

/* partition */
#define PART_MAX_NUM		8

/* partition flag */
#define PART_FLAG_NONE		0
#define PART_FLAG_DISK		1
#define PART_FLAG_NET		2

/* partition type */
#define PART_TYPE_RO		0
#define PART_TYPE_RW		1

/* image type */
#define IMAGE_OTHER		0
#define IMAGE_UCLINUX		1

/* uclinux parameters */
#define UCLINUX_EXEC_ADDR	0x00008000
#define UCLINUX_PARAM_ADDR	0x00000100

/* string buffer */
#define CMD_LENGTH		128
#define PASSWD_LENGTH		16

/* user flags */
#define USERFLAG_NONE		0
#define USERFLAG_MEMORY		1
#define USERFLAG_BIOS		2

/* boot modes */
#define BOOT_MENU		0
#define BOOT_BIOS_SETUP		1
#define BOOT_RUN_FDISK		2
#define BOOT_LOAD_IMAGE		3
#define BOOT_UPDATE_IMAGE	4
#define BOOT_REBOOT		5

/* setup operations */
#define SETUP_CPU		0
#define SETUP_ROM		1
#define SETUP_DRAM		2
#define SETUP_EXTIO		3
#define SETUP_ETH		4
#define SETUP_BOOT_MODE		5
#define SETUP_PASSWD		6
#define SETUP_LOAD_DEF		7

/* eth operations */
#define ETH_DISPLAY_IP		0
#define ETH_DISPLAY_MAC		1
#define ETH_SET_IP		2
#define ETH_SET_MAC		3

/* fdisk operations */
#define FDISK_DISPLAY_PART	0
#define FDISK_DISPLAY_PARAM	1
#define FDISK_CREATE_PART	2
#define FDISK_DELETE_PART	3
#define FDISK_SET_BOOT		4

/* vendor and device id */
#define COMPEX_VENDOR_ID	0x11F6
#define IRE201_DEVICE_ID	0x8000
#define NP15B_DEVICE_ID		0x8001
#define BTE201_DEVICE_ID	0x8002
#define GENERAL_VENDOR_ID	0x5555
#define GENERAL_DEVICE_ID	0xaaaa
#define NONE_VENDOR_ID		0x0000
#define NONE_DEVICE_ID		0x0000

typedef int (BIOSCALL)(unsigned long id, unsigned long arg);
typedef int (GUNZIP)(unsigned char *inbuf, unsigned long *insize, \
		unsigned char *outbuf, unsigned long *outsize);

struct partition_struct {
	/* partition */
	unsigned char flag;
	unsigned char type;
	unsigned long offset;
	unsigned long size;
	
	/* parameter */
	unsigned char image_type;
	unsigned char gzipped_image;
	unsigned long exec_addr;
	unsigned long param_addr;
	char command_line[CMD_LENGTH];
};

struct partition_table_struct {
	int boot_partition;
	struct partition_struct partition[PART_MAX_NUM];
};

struct sys_regs_struct {
	unsigned long extdbwth;
	unsigned long romcon[6];
	unsigned long dramcon[4];
	unsigned long refextcon;
};

struct sys_dram_cfg {
	unsigned long size;
	unsigned long width;
	unsigned long flag;
	unsigned long refresh;
	
	/* dram options */
	unsigned char trcd;
	unsigned char trp;
	unsigned char can;
	
	/* refresh options */
	unsigned char ref_trc;
	unsigned char ref_period;
};

struct sys_rom_cfg {
	unsigned long size;
	unsigned long width;
	unsigned long flag;
	
	/* sram/rom options */
	unsigned char pmc;
	unsigned char tpa;
	unsigned char tacc;
};

struct sys_ext_cfg {
	unsigned long width;
	unsigned long flag;

	/* options */
	unsigned char tcos;
	unsigned char tacs;
	unsigned char tcoh;
	unsigned char tacc;
};

struct sys_cpu_cfg {
	unsigned long reg_syscfg;
	unsigned long reg_clkcon;

	/* cache/write buffer */
	unsigned char cache_size;
	unsigned char wbuf_on;

	/* clock */
	unsigned char clk_div;
};

struct sys_iop_cfg {
	unsigned long iopmod;
	unsigned long iopcon;
	unsigned long iopdata;
};

struct sys_eth_cfg {
	unsigned char mac_addr[6];
	unsigned long ip_addr;
};

struct system_table_struct {
	unsigned long vendor_id;
	unsigned long device_id;
	unsigned long rev;
	
	unsigned long system_table_size;
	unsigned long partition_table_offset;
	unsigned long partition_table_size;
	unsigned long default_table_offset;

	struct sys_rom_cfg rom_table[6];
	struct sys_dram_cfg dram_table[4];
	struct sys_ext_cfg ext_table[4];
	struct sys_cpu_cfg cpu;
	struct sys_iop_cfg iop;
	struct sys_eth_cfg eth;

	unsigned long bios_size;
	unsigned long startup_mode;

	char password[PASSWD_LENGTH];
};

struct flash_erase_struct {
	unsigned long addr;
	unsigned long size;
};

struct flash_read_struct {
	unsigned long from;
	unsigned long len;
	unsigned long retlen;
	unsigned char *buf;
};

struct flash_write_struct {
	unsigned long to;
	unsigned long len;
	unsigned long retlen;
	unsigned char *buf;
};

struct biosapi_init_struct {
	unsigned long rom_base;
	unsigned long dram_base;
	unsigned long system_table_offset;
	struct system_table_struct *system_table;
};

struct config_table_struct {
	unsigned short vendor_id;
	unsigned short device_id;
	unsigned long rev;

	unsigned long system_table_offset;
	unsigned long system_table_size;
	unsigned long partition_table_offset;
	unsigned long partition_table_size;
	unsigned long default_table_offset;

	unsigned long bios_offset;
	unsigned long bios_size;

	unsigned long rom_base;
	unsigned long rom_size;
	unsigned long dram_base;
	unsigned long dram_size;

	unsigned long startup_mode;
	unsigned long userflag;
};

#endif  /* __BIOS_H */