it8172.h

来自「国产CPU－龙芯（loongson)BIOS源代码」· C头文件 代码 · 共 522 行 · 第 1/2 页

#define IT_SCR0_BASE                            0x12000
#define IT_SCR1_BASE                            0x12800
#define IT_PP_BASE                              0x13000
#define IT_I2C_BASE                             0x14000
#define IT_CIR1_BASE                            0x15000

/*
 * IT8172 Smart Card Reader offsets from IT_SCR*_BASE
 */
#define IT_SCR_SFR                              0x08
#define IT_SCR_SCDR                             0x09

/*
 * IT8172 IT_SCR_SFR bit definition & mask
 */
#define IT_SCR_SFR_GATE_UART                    0x40
#define IT_SCR_SFR_GATE_UART_BIT                6
#define IT_SCR_SFR_GATE_UART_OFF                0
#define IT_SCR_SFR_GATE_UART_ON                 1
#define IT_SCR_SFR_FET_CHARGE                   0x30
#define IT_SCR_SFR_FET_CHARGE_BIT               4
#define IT_SCR_SFR_FET_CHARGE_3_3_US            3
#define IT_SCR_SFR_FET_CHARGE_13_US             2
#define IT_SCR_SFR_FET_CHARGE_53_US             1
#define IT_SCR_SFR_FET_CHARGE_213_US            0
#define IT_SCR_SFR_CARD_FREQ                    0x0C
#define IT_SCR_SFR_CARD_FREQ_BIT                2
#define IT_SCR_SFR_CARD_FREQ_STOP               3
#define IT_SCR_SFR_CARD_FREQ_3_5_MHZ            0
#define IT_SCR_SFR_CARD_FREQ_7_1_MHZ            2
#define IT_SCR_SFR_CARD_FREQ_96_DIV_MHZ         1
#define IT_SCR_SFR_FET_ACTIVE                   0x02
#define IT_SCR_SFR_FET_ACTIVE_BIT               1
#define IT_SCR_SFR_FET_ACTIVE_INVERT            0
#define IT_SCR_SFR_FET_ACTIVE_NONINVERT         1
#define IT_SCR_SFR_ENABLE                       0x01
#define IT_SCR_SFR_ENABLE_BIT                   0
#define IT_SCR_SFR_ENABLE_OFF                   0
#define IT_SCR_SFR_ENABLE_ON                    1

/*
 * IT8172 IT_SCR_SCDR bit definition & mask
 */
#define IT_SCR_SCDR_RESET_MODE                  0x80
#define IT_SCR_SCDR_RESET_MODE_BIT              7
#define IT_SCR_SCDR_RESET_MODE_ASYNC            0
#define IT_SCR_SCDR_RESET_MODE_SYNC             1
#define IT_SCR_SCDR_DIVISOR                     0x7F
#define IT_SCR_SCDR_DIVISOR_BIT                 0
#define IT_SCR_SCDR_DIVISOR_STOP_VAL_1          0x00
#define IT_SCR_SCDR_DIVISOR_STOP_VAL_2          0x01
#define IT_SCR_SCDR_DIVISOR_STOP_VAL_3          0x7F

/*
 * IT8172 DMA
 */
#define IT_DMAC_BASE                            0x16000
#define IT_DMAC_BCAR0                           0x00
#define IT_DMAC_BCAR1                           0x04
#define IT_DMAC_BCAR2                           0x08
#define IT_DMAC_BCAR3                           0x0C
#define IT_DMAC_BCCR0                           0x02
#define IT_DMAC_BCCR1                           0x06
#define IT_DMAC_BCCR2                           0x0a
#define IT_DMAC_BCCR3                           0x0e
#define IT_DMAC_CR                              0x10
#define IT_DMAC_SR                              0x12
#define IT_DMAC_ESR                             0x13
#define IT_DMAC_RQR                             0x14
#define IT_DMAC_MR                              0x16
#define IT_DMAC_EMR                             0x17
#define IT_DMAC_MKR                             0x18
#define IT_DMAC_PAR0                            0x20
#define IT_DMAC_PAR1                            0x22
#define IT_DMAC_PAR2                            0x24
#define IT_DMAC_PAR3                            0x26

/*
 *  IT8172 IDE
 */
#define IT_IDE_BASE                             0x17800
#define IT_IDE_STATUS                           0x1F7

/*
 *  IT8172 Audio Controller
 */
#define IT_AC_BASE                              0x17000
#define IT_AC_PCMOV                             0x00
#define IT_AC_FMOV                              0x02
#define IT_AC_I2SV                              0x04
#define IT_AC_DRSS                              0x06
#define IT_AC_PCC                               0x08
#define IT_AC_PCDL                              0x0A
#define IT_AC_PCB1STA                           0x0C
#define IT_AC_PCB2STA                           0x10
#define IT_AC_CAPCC                             0x14
#define IT_AC_CAPCDL                            0x16
#define IT_AC_CAPB1STA                          0x18
#define IT_AC_CAPB2STA                          0x1C
#define IT_AC_CODECC                            0x22
#define IT_AC_I2SMC                             0x24
#define IT_AC_VS                                0x26
#define IT_AC_SRCS                              0x28
#define IT_AC_CIRCP                             0x2A
#define IT_AC_CIRDP                             0x2C
#define IT_AC_TM                                0x4A
#define IT_AC_PFDP                              0x4C
#define IT_AC_GC                                0x54
#define IT_AC_IMC                               0x56
#define IT_AC_ISC                               0x5B
#define IT_AC_OPL3SR                            0x68
#define IT_AC_OPL3DWDR                          0x69
#define IT_AC_OPL3AB1W                          0x6A
#define IT_AC_OPL3DW                            0x6B
#define IT_AC_BPDC                              0x70


/*
 *  IT8172 Timer
 */
#define IT_TIMER_BASE                           0x10800
#define TIMER_TCVR0                             0x00
#define TIMER_TRVR0                             0x02
#define TIMER_TCR0                              0x04
#define TIMER_TIRR                              0x06
#define TIMER_TCVR1                             0x08
#define TIMER_TRVR1                             0x0A
#define TIMER_TCR1                              0x0C
#define TIMER_TIDR                              0x0E

#define IT_WRITE(ofs, data) \
do { \
        *(volatile u32 *) KSEG1ADDR((IT8172_BASE+ofs)) = data ; \
} while (0)

#define IT_READ(ofs, data) \
do { \
    data = *(volatile u32 *)KSEG1ADDR((IT8172_BASE+ofs)); \
} while (0);

#define IT_IO_WRITE(ofs, data) \
do {\
        *(volatile u32 *)KSEG1ADDR((IT8172_PCI_IO_BASE+ofs)) = data;\
} while (0);

#define IT_IO_READ(ofs, data) \
do {\
        data = *(volatile u32 *)KSEG1ADDR((IT8172_PCI_IO_BASE+ofs));\
} while (0);

#define IT_IO_WRITE16(ofs, data)\
do {\
        *(volatile u16 *)KSEG1ADDR((IT8172_PCI_IO_BASE+ofs)) = data; \
} while (0);

#define IT_IO_READ16(ofs, data) \
do {\
data = *(volatile u16 *)KSEG1ADDR((IT8172_PCI_IO_BASE+ofs));\
} while (0);


#if     1
#define __DEBUG_LEVEL0__        (1)
#endif
#if     (__DEBUG_LEVEL0__ && 1)
#define __DEBUG_LEVEL1__        (1)
#endif
#if     (__DEBUG_LEVEL1__ && 1)
#define __DEBUG_LEVEL2__        (1)
#endif

/*
 *      Part 1: Frequency & Rate Definitions;
 */
#ifndef MHZ
#define MHZ             225
#endif

#ifndef SYSCLK_MHZ
#define SYSCLK_MHZ      75
#endif

#define RAMCYCLE        15                      /* ~60ns dram cycle */
#define ROMCYCLE        150                     /* ~1500ns rom cycle */
#define CACHECYCLE      (1000/MHZ)              /* pipeline clock */
#define CYCLETIME       CACHECYCLE
#define CACHEMISS       (CYCLETIME * 6)

#define RTC_HZ          16
#define RTC_RATE        RTC_RATE_16Hz

/*
 * rough scaling factors for 2 instruction DELAY loop to get 1ms and 1us delays
 */
#define ASMDELAY(ns,icycle)     (((ns) + (icycle)) / ((icycle) * 2))

#define CACHENS(ns)     ASMDELAY((ns), CACHECYCLE)
#define RAMNS(ns)       ASMDELAY((ns), CACHEMISS+RAMCYCLE)
#define ROMNS(ns)       ASMDELAY((ns), CACHEMISS+ROMCYCLE)
#define CACHEUS(us)     ASMDELAY((us)*1000, CACHECYCLE)
#define RAMUS(us)       ASMDELAY((us)*1000, CACHEMISS+RAMCYCLE)
#define ROMUS(us)       ASMDELAY((us)*1000, CACHEMISS+ROMCYCLE)
#define CACHEMS(ms)     ((ms) * ASMDELAY(1000000, CACHECYCLE))
#define RAMMS(ms)       ((ms) * ASMDELAY(1000000, CACHEMISS+RAMCYCLE))
#define ROMMS(ms)       ((ms) * ASMDELAY(1000000, CACHEMISS+ROMCYCLE))


/*
 * Part 2: Address Mapping Definitions;
 * Physical Address Space From CPU's View
 */
#define PCIP_MEM_SPACE_BASE     IT8172_PCI_MEM_BASE     /* 0x0c000000 */
#define PCI_MEM_SPACE_BASE      PCIP_MEM_SPACE_BASE + 0xa0000000
#define PCI_MEM_SPACE_SIZE      0x08000000              /* 128MB, 0x0c000000<=PCI Memory<=0x14000000 */
#define PCIP_IO_SPACE_BASE      IT8172_PCI_IO_BASE      /* 0x14000000 */
#define PCI_IO_SPACE_BASE       (PCIP_IO_SPACE_BASE  + 0xa0000000)
#define PCI_IO_SPACE_SIZE       0x04000000              /* 64MB */
#define PCI_CPU_MEM_BASE        0

#define BOOTPROM_BASE           0x1FC00000
#define FLASH_BASE              0x08000000
#define FLASH_SIZE              0x04000000              /* 64MB */
#define BOOT_BASE               BOOTPROM_BASE
#define BOOT_SIZE               0x00400000              /* 4M BootROM */

#define RTC_BASE                (PCI_IO_SPACE_BASE | IT_RTC_BASE)
#define RTC_ADDR_PORT           (RTC_BASE + IT_RTC_RIR0)
#define RTC_DATA_PORT           (RTC_BASE + IT_RTC_RTR0)

#define UART0_PORT              IT_UART_BASE
#define UART0_STATPORT          (IT_UART_BASE + 6)
#define UART1_PORT              IT_UART_BASE
#define UART1_STATPORT          (IT_UART_BASE + 6)

/*
 *  NVRAM mapping
 */
#ifdef NVRAM_IN_FLASH

#define NVRAM_SIZE              494
#define NVRAM_SECSIZE           500
#define NVRAM_OFFS              0x00000000
#define ETHER_OFFS              494     /* Ethernet address base */
#ifdef not_very_likely
#define NVRAM_VXWORKS           (NVRAM_OFFS + NVRAM_SIZE)
#define NVRAM_VXWORKS_DEFAULT \ "dc(0,0)host:/usr/vw/config/ev64240/vxWorks h=90.0.0.3 e=90.0.0.50 u=target" 
#endif 

#else   /* Use clock ram, 256 bytes only */ 

#define NVRAM_SIZE              108 
#define NVRAM_SECSIZE           NVRAM_SIZE      /* Helper */ 
#define NVRAM_OFFS              0 
#define ETHER_OFFS              108     /* Ethernet address base */ 

#endif

#endif /* __BLX_EV8172_H__ */