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lxdream.org :: lxdream/src/sh4/sh4mmio.h
lxdream 0.9.1
released Jun 29
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filename src/sh4/sh4mmio.h
changeset 19:9da7a8e38f9d
prev10:c898b37506e0
next30:89b30313d757
author nkeynes
date Thu Dec 22 07:38:12 2005 +0000 (15 years ago)
permissions -rw-r--r--
last change Implement 95% of the SCIF serial interface
Implement basic load_bin_file function to try to load demos directly
Update TMU to run all 3 timers, start on general timing
view annotate diff log raw
     1 #include "mmio.h"
     3 #if (defined(MMIO_IMPL) && !defined(SH4MMIO_IMPL)) || \
     4     (!defined(MMIO_IMPL) && !defined(SH4MMIO_IFACE))
     6 #ifdef MMIO_IMPL
     7 #define SH4MMIO_IMPL
     8 #else
     9 #define SH4MMIO_IFACE
    10 #endif
    11 /* SH7750 onchip mmio devices */
    13 MMIO_REGION_BEGIN( 0xFF000000, MMU, "MMU Registers" )
    14     LONG_PORT( 0x000, PTEH, PORT_MRW, UNDEFINED, "Page table entry high" )
    15     LONG_PORT( 0x004, PTEL, PORT_MRW, UNDEFINED, "Page table entry low" )
    16     LONG_PORT( 0x008, TTB,  PORT_MRW, UNDEFINED, "Translation table base" )
    17     LONG_PORT( 0x00C, TEA,  PORT_MRW, UNDEFINED, "TLB exception address" )
    18     LONG_PORT( 0x010, MMUCR,PORT_MRW, 0, "MMU control register" )
    19     BYTE_PORT( 0x14, BASRA, PORT_MRW, UNDEFINED, "Break ASID A" ) /* UBC */
    20     BYTE_PORT( 0x18, BASRB, PORT_MRW, UNDEFINED, "Break ASID B" ) /* UBC */
    21     LONG_PORT( 0x01C, CCR,  PORT_MRW, 0, "Cache control register" )
    22     LONG_PORT( 0x020, TRA,  PORT_MRW, UNDEFINED, "TRAPA exception register" )
    23     LONG_PORT( 0x024, EXPEVT,PORT_MRW, 0, "Exception event register" )
    24     LONG_PORT( 0x028, INTEVT,PORT_MRW, UNDEFINED, "Interrupt event register" )
    25     LONG_PORT( 0x034, PTEA, PORT_MRW, UNDEFINED, "Page table entry assistance" )
    26     LONG_PORT( 0x038, QACR0,PORT_MRW, UNDEFINED, "Queue address control 0" )
    27     LONG_PORT( 0x03C, QACR1,PORT_MRW, UNDEFINED, "Queue address control 1" )
    28 MMIO_REGION_END
    30 /* User Break Controller (Page 717 [757] of sh7750h manual) */
    31 MMIO_REGION_BEGIN( 0xFF200000, UBC, "User Break Controller" )
    32     LONG_PORT( 0x000, BARA, PORT_MRW, UNDEFINED, "Break address A" )
    33     BYTE_PORT( 0x004, BAMRA, PORT_MRW, UNDEFINED, "Break address mask A" )
    34     WORD_PORT( 0x008, BBRA, PORT_MRW, 0, "Break bus cycle A" )
    35     LONG_PORT( 0x00C, BARB, PORT_MRW, UNDEFINED, "Break address B" )
    36     BYTE_PORT( 0x010, BAMRB, PORT_MRW, UNDEFINED, "Break address mask B" )
    37     WORD_PORT( 0x014, BBRB, PORT_MRW, 0, "Break bus cycle B" )
    38     LONG_PORT( 0x018, BDRB, PORT_MRW, UNDEFINED, "Break data B" )
    39     LONG_PORT( 0x01C, BDMRB, PORT_MRW, UNDEFINED, "Break data mask B" )
    40     WORD_PORT( 0x020, BRCR, PORT_MRW, 0, "Break control" )
    41 MMIO_REGION_END
    42 /* Bus State Controller (Page 293 [333] of sh7750h manual)
    43  * I/O Ports */
    44 MMIO_REGION_BEGIN( 0xFF800000, BSC, "Bus State Controller" )
    45     LONG_PORT( 0x000, BCR1, PORT_MRW, 0, "Bus control 1" )
    46     WORD_PORT( 0x004, BCR2, PORT_MRW, 0x3FFC, "Bus control 2" )
    47     LONG_PORT( 0x008, WCR1, PORT_MRW, 0x77777777, "Wait state control 1" )
    48     LONG_PORT( 0x00C, WCR2, PORT_MRW, 0xFFFEEFFF, "Wait state control 2" )
    49     LONG_PORT( 0x010, WCR3, PORT_MRW, 0x07777777, "Wait state control 3" )
    50     LONG_PORT( 0x014, MCR, PORT_MRW, 0, "Memory control register" )
    51     WORD_PORT( 0x018, PCR, PORT_MRW, 0, "PCMCIA control register" )
    52     WORD_PORT( 0x01C, RTCSR, PORT_MRW, 0, "Refresh timer control/status" )
    53     WORD_PORT( 0x020, RTCNT, PORT_MRW, 0, "Refresh timer counter" )
    54     WORD_PORT( 0x024, RTCOR, PORT_MRW, 0, "Refresh timer constant" )
    55     WORD_PORT( 0x028, RFCR, PORT_MRW, 0, "Refresh count" )
    56     LONG_PORT( 0x02C, PCTRA, PORT_MRW, 0, "Port control register A" )
    57     WORD_PORT( 0x030, PDTRA, PORT_RW, UNDEFINED, "Port data register A" )
    58     LONG_PORT( 0x040, PCTRB, PORT_MRW, 0, "Port control register B" )
    59     WORD_PORT( 0x044, PDTRB, PORT_RW, UNDEFINED, "Port data register B" )
    60     WORD_PORT( 0x048, GPIOIC, PORT_MRW, 0, "GPIO interrupt control register" )
    61 MMIO_REGION_END
    63 /* DMA Controller (Page 457 [497] of sh7750h manual) */
    64 MMIO_REGION_BEGIN( 0xFFA00000, DMAC, "DMA Controller" )
    65     LONG_PORT( 0x000, SAR0, PORT_MRW, UNDEFINED, "DMA source address 0" )
    66     LONG_PORT( 0x004, DAR0, PORT_MRW, UNDEFINED, "DMA destination address 0" )
    67     LONG_PORT( 0x008, DMATCR0, PORT_MRW, UNDEFINED, "DMA transfer count 0" )
    68     LONG_PORT( 0x00C, CHCR0, PORT_MRW, 0, "DMA channel control 0" )
    69     LONG_PORT( 0x010, SAR1, PORT_MRW, UNDEFINED, "DMA source address 1" )
    70     LONG_PORT( 0x014, DAR1, PORT_MRW, UNDEFINED, "DMA destination address 1" )
    71     LONG_PORT( 0x018, DMATCR1, PORT_MRW, UNDEFINED, "DMA transfer count 1" )
    72     LONG_PORT( 0x01C, CHCR1, PORT_MRW, 0, "DMA channel control 1" )
    73     LONG_PORT( 0x020, SAR2, PORT_MRW, UNDEFINED, "DMA source address 2" )
    74     LONG_PORT( 0x024, DAR2, PORT_MRW, UNDEFINED, "DMA destination address 2" )
    75     LONG_PORT( 0x028, DMATCR2, PORT_MRW, UNDEFINED, "DMA transfer count 2" )
    76     LONG_PORT( 0x02C, CHCR2, PORT_MRW, 0, "DMA channel control 2" )
    77     LONG_PORT( 0x030, SAR3, PORT_MRW, UNDEFINED, "DMA source address 3" )
    78     LONG_PORT( 0x034, DAR3, PORT_MRW, UNDEFINED, "DMA destination address 3" )
    79     LONG_PORT( 0x038, DMATCR3, PORT_MRW, UNDEFINED, "DMA transfer count 3" )
    80     LONG_PORT( 0x03C, CHCR3, PORT_MRW, 0, "DMA channel control 3" )
    81     LONG_PORT( 0x040, DMAOR, PORT_MRW, 0, "DMA operation register" )
    82 MMIO_REGION_END
    84 /* Clock Pulse Generator (page 233 [273] of sh7750h manual) */
    85 MMIO_REGION_BEGIN( 0xFFC00000, CPG, "Clock Pulse Generator" )
    86     WORD_PORT( 0x000, FRQCR, PORT_MRW, UNDEFINED, "Frequency control" )
    87     BYTE_PORT( 0x004, STBCR, PORT_MRW, 0, "Standby control" )
    88     BYTE_PORT( 0x008, WTCNT, PORT_MRW, 0, "Watchdog timer counter" )
    89     BYTE_PORT( 0x00C, WTCSR, PORT_MRW, 0, "Watchdog timer control/status" )
    90     BYTE_PORT( 0x010, STBCR2, PORT_MRW, 0, "Standby control 2" )
    91 MMIO_REGION_END
    93 /* Real time clock (Page 253 [293] of sh7750h manual) */
    94 MMIO_REGION_BEGIN( 0xFFC80000, RTC, "Realtime Clock" )
    95     BYTE_PORT( 0x000, R64CNT, PORT_R, UNDEFINED, "64 Hz counter" )
    96     BYTE_PORT( 0x004, RSECCNT, PORT_MRW, UNDEFINED, "Second counter" )
    97     /* ... */
    98 MMIO_REGION_END
   100 /* Interrupt controller (Page 699 [739] of sh7750h manual) */
   101 MMIO_REGION_BEGIN( 0xFFD00000, INTC, "Interrupt Controller" )
   102     WORD_PORT( 0x000, ICR, PORT_MRW, 0x0000, "Interrupt control register" )
   103     WORD_PORT( 0x004, IPRA, PORT_MRW, 0x0000, "Interrupt priority register A" )
   104     WORD_PORT( 0x008, IPRB, PORT_MRW, 0x0000, "Interrupt priority register B" )
   105     WORD_PORT( 0x00C, IPRC, PORT_MRW, 0x0000, "Interrupt priority register C" )
   106     WORD_PORT( 0x010, IPRD, PORT_MRW, 0xDA74, "Interrupt priority register D" )
   107 MMIO_REGION_END
   109 /* Timer unit (Page 277 [317] of sh7750h manual) */
   110 MMIO_REGION_BEGIN( 0xFFD80000, TMU, "Timer Unit" )
   111     BYTE_PORT( 0x000, TOCR, PORT_MRW, 0x00, "Timer output control register" )
   112     BYTE_PORT( 0x004, TSTR, PORT_MRW, 0x00, "Timer start register" )
   113     LONG_PORT( 0x008, TCOR0, PORT_MRW, 0xFFFFFFFF, "Timer constant 0" )
   114     LONG_PORT( 0x00C, TCNT0, PORT_MRW, 0xFFFFFFFF, "Timer counter 0" )
   115     WORD_PORT( 0x010, TCR0, PORT_MRW, 0x0000, "Timer control 0" )
   116     LONG_PORT( 0x014, TCOR1, PORT_MRW, 0xFFFFFFFF, "Timer constant 1" )
   117     LONG_PORT( 0x018, TCNT1, PORT_MRW, 0xFFFFFFFF, "Timer counter 1" )
   118     WORD_PORT( 0x01C, TCR1, PORT_MRW, 0x0000, "Timer control 1" )
   119     LONG_PORT( 0x020, TCOR2, PORT_MRW, 0xFFFFFFFF, "Timer constant 2" )
   120     LONG_PORT( 0x024, TCNT2, PORT_MRW, 0xFFFFFFFF, "Timer counter 2" )
   121     WORD_PORT( 0x028, TCR2, PORT_MRW, 0x0000, "Timer control 2" )
   122     LONG_PORT( 0x02C, TCPR2, PORT_R, UNDEFINED, "Input capture register" )
   123 MMIO_REGION_END
   125 /* Serial channel (page 541 [581] of sh7750h manual) */
   126 MMIO_REGION_BEGIN( 0xFFE00000, SCI, "Serial Communication Interface" )
   127     BYTE_PORT( 0x000, SCSMR1, PORT_MRW, 0x00, "Serial mode register" )
   128     BYTE_PORT( 0x004, SCBRR1, PORT_MRW, 0xFF, "Bit rate register" )
   129     BYTE_PORT( 0x008, SCSCR1, PORT_MRW, 0x00, "Serial control register" )
   130     BYTE_PORT( 0x00C, SCTDR1, PORT_MRW, 0xFF, "Transmit data register" )
   131     BYTE_PORT( 0x010, SCSSR1, PORT_MRW, 0x84, "Serial status register" )
   132     BYTE_PORT( 0x014, SCRDR1, PORT_R, 0x00, "Receive data register" )
   133     BYTE_PORT( 0x01C, SCSPTR1, PORT_MRW, 0x00, "Serial port register" )
   134 MMIO_REGION_END
   136 MMIO_REGION_BEGIN( 0xFFE80000, SCIF, "Serial Controller (FIFO) Registers" )
   137     WORD_PORT( 0x000, SCSMR2, PORT_MRW, 0x0000, "Serial mode register (FIFO)" )
   138     BYTE_PORT( 0x004, SCBRR2, PORT_MRW, 0xFF, "Bit rate register (FIFO)" )
   139     WORD_PORT( 0x008, SCSCR2, PORT_MRW, 0x0000, "Serial control register" )
   140     BYTE_PORT( 0x00C, SCFTDR2, PORT_W, UNDEFINED, "Transmit FIFO data register" )
   141     WORD_PORT( 0x010, SCFSR2, PORT_MRW, 0x0060, "Serial status register (FIFO)") 
   142     BYTE_PORT( 0x014, SCFRDR2, PORT_R, UNDEFINED, "Receive FIFO data register" )
   143     WORD_PORT( 0x018, SCFCR2, PORT_MRW, 0x0000, "FIFO control register" )
   144     WORD_PORT( 0x01C, SCFDR2, PORT_MR, 0x0000, "FIFO data count register" )
   145     WORD_PORT( 0x020, SCSPTR2, PORT_MRW, 0x0000, "Serial port register (FIFO)" )
   146     WORD_PORT( 0x024, SCLSR2, PORT_MRW, 0x0000, "Line status register (FIFO)" )
   147 MMIO_REGION_END
   149 MMIO_REGION_LIST_BEGIN( sh4mmio )
   150     MMIO_REGION( MMU )
   151     MMIO_REGION( UBC )
   152     MMIO_REGION( BSC )
   153     MMIO_REGION( DMAC )
   154     MMIO_REGION( CPG )
   155     MMIO_REGION( RTC )
   156     MMIO_REGION( INTC )
   157     MMIO_REGION( TMU )
   158     MMIO_REGION( SCI )
   159     MMIO_REGION( SCIF )
   160 MMIO_REGION_LIST_END
   162 /* mmucr register bits */
   163 #define MMUCR_AT   0x00000001 /* Address Translation enabled */
   164 #define MMUCR_TI   0x00000004 /* TLB invalidate (always read as 0) */
   165 #define MMUCR_SV   0x00000100 /* Single Virtual mode=1 / multiple virtual=0 */
   166 #define MMUCR_SQMD 0x00000200 /* Store queue mode bit (0=user, 1=priv only) */
   167 #define MMUCR_URC  0x0000FC00 /* UTLB access counter */
   168 #define MMUCR_URB  0x00FC0000 /* UTLB entry boundary */
   169 #define MMUCR_LRUI 0xFC000000 /* Least recently used ITLB */
   170 #define MMUCR_MASK 0xFCFCFF05
   171 #define MMUCR_RMASK 0xFCFCFF01 /* Read mask */
   173 #define IS_MMU_ENABLED() (MMIO_READ(MMU, MMUCR)&MMUCR_AT)
   175 /* ccr register bits */
   176 #define CCR_IIX    0x00008000 /* IC index enable */
   177 #define CCR_ICI    0x00000800 /* IC invalidation (always read as 0) */
   178 #define CCR_ICE    0x00000100 /* IC enable */
   179 #define CCR_OIX    0x00000080 /* OC index enable */
   180 #define CCR_ORA    0x00000020 /* OC RAM enable */
   181 #define CCR_OCI    0x00000008 /* OC invalidation (always read as 0) */
   182 #define CCR_CB     0x00000004 /* Copy-back (P1 area cache write mode) */
   183 #define CCR_WT     0x00000002 /* Write-through (P0,U0,P3 write mode) */
   184 #define CCR_OCE    0x00000001 /* OC enable */
   185 #define CCR_MASK   0x000089AF
   186 #define CCR_RMASK  0x000081A7 /* Read mask */
   188 #define MEM_OC_DISABLED 0
   189 #define MEM_OC_INDEX0   CCR_ORA
   190 #define MEM_OC_INDEX1   CCR_ORA|CCR_OIX
   192 void mmu_init(void);
   193 void mmu_set_cache_mode( int );
   195 #endif
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