diff options
Diffstat (limited to 'src/devices/machine/vrc5074.cpp')
-rw-r--r-- | src/devices/machine/vrc5074.cpp | 110 |
1 files changed, 108 insertions, 2 deletions
diff --git a/src/devices/machine/vrc5074.cpp b/src/devices/machine/vrc5074.cpp index 4d8285e24f0..4f984af7a1b 100644 --- a/src/devices/machine/vrc5074.cpp +++ b/src/devices/machine/vrc5074.cpp @@ -12,7 +12,113 @@ #define LOG_NILE_TARGET (0) #define PRINTF_SERIAL (0) -const device_type VRC5074 = device_creator<vrc5074_device>; +/* NILE 4 registers 0x000-0x0ff */ +#define NREG_SDRAM0 (0x000/4) +#define NREG_SDRAM1 (0x008/4) +#define NREG_DCS2 (0x010/4) /* SIO misc */ +#define NREG_DCS3 (0x018/4) /* ADC */ +#define NREG_DCS4 (0x020/4) /* CMOS */ +#define NREG_DCS5 (0x028/4) /* SIO */ +#define NREG_DCS6 (0x030/4) /* IOASIC */ +#define NREG_DCS7 (0x038/4) /* ethernet */ +#define NREG_DCS8 (0x040/4) +#define NREG_PCIW0 (0x060/4) +#define NREG_PCIW1 (0x068/4) +#define NREG_INTCS (0x070/4) +#define NREG_BOOTCS (0x078/4) +#define NREG_CPUSTAT (0x080/4) +#define NREG_INTCTRL (0x088/4) +#define NREG_INTSTAT0 (0x090/4) +#define NREG_INTSTAT1 (0x098/4) +#define NREG_INTCLR (0x0A0/4) +#define NREG_INTPPES (0x0A8/4) +#define NREG_PCIERR (0x0B8/4) +#define NREG_MEMCTRL (0x0C0/4) +#define NREG_ACSTIME (0x0C8/4) +#define NREG_CHKERR (0x0D0/4) +#define NREG_PCICTRL (0x0E0/4) +#define NREG_PCIARB (0x0E8/4) +#define NREG_PCIINIT0 (0x0F0/4) +#define NREG_PCIINIT1 (0x0F8/4) + +/* NILE 4 registers 0x100-0x1ff */ +#define NREG_LCNFG (0x100/4) +#define NREG_LCST2 (0x110/4) +#define NREG_LCST3 (0x118/4) +#define NREG_LCST4 (0x120/4) +#define NREG_LCST5 (0x128/4) +#define NREG_LCST6 (0x130/4) +#define NREG_LCST7 (0x138/4) +#define NREG_LCST8 (0x140/4) +#define NREG_DCSFN (0x150/4) +#define NREG_DCSIO (0x158/4) +#define NREG_BCST (0x178/4) +#define NREG_DMACTRL0 (0x180/4) +#define NREG_DMASRCA0 (0x188/4) +#define NREG_DMADESA0 (0x190/4) +#define NREG_DMACTRL1 (0x198/4) +#define NREG_DMASRCA1 (0x1A0/4) +#define NREG_DMADESA1 (0x1A8/4) +#define NREG_T0CTRL (0x1C0/4) +#define NREG_T0CNTR (0x1C8/4) +#define NREG_T1CTRL (0x1D0/4) +#define NREG_T1CNTR (0x1D8/4) +#define NREG_T2CTRL (0x1E0/4) +#define NREG_T2CNTR (0x1E8/4) +#define NREG_T3CTRL (0x1F0/4) +#define NREG_T3CNTR (0x1F8/4) + +/* NILE 4 registers 0x300-0x3ff */ +#define NREG_UARTRBR (0x00/4) +#define NREG_UARTTHR (0x00/4) +#define NREG_UARTIER (0x08/4) +#define NREG_UARTDLL (0x00/4) +#define NREG_UARTDLM (0x08/4) +#define NREG_UARTIIR (0x10/4) +#define NREG_UARTFCR (0x10/4) +#define NREG_UARTLCR (0x18/4) +#define NREG_UARTMCR (0x20/4) +#define NREG_UARTLSR (0x28/4) +#define NREG_UARTMSR (0x30/4) +#define NREG_UARTSCR (0x38/4) + +/* NILE 4 interrupts */ +#define NINT_CPCE (0) +#define NINT_CNTD (1) +#define NINT_MCE (2) +#define NINT_DMA (3) +#define NINT_UART (4) +#define NINT_WDOG (5) +#define NINT_GPT (6) +#define NINT_LBRTD (7) +#define NINT_INTA (8) +#define NINT_INTB (9) +#define NINT_INTC (10) +#define NINT_INTD (11) +#define NINT_INTE (12) +#define NINT_RESV (13) +#define NINT_PCIS (14) +#define NINT_PCIE (15) + +#define TIMER_PERIOD attotime::from_hz(SYSTEM_CLOCK) + +#define PCI_BUS_CLOCK 33000000 +// Number of dma words to transfer at a time, real hardware bursts 8 +#define DMA_BURST_SIZE 128 +#define DMA_TIMER_PERIOD attotime::from_hz(PCI_BUS_CLOCK / 32) + +#define DMA_BUSY 0x80000000 +#define DMA_INTEN 0x40000000 +#define DMA_INTVLD 0x20000000 +#define DMA_GO 0x10000000 +#define DMA_SUS 0x08000000 +#define DMA_DSTINC 0x04000000 +#define DMA_SRCINC 0x02000000 +#define DMA_RST 0x01000000 +#define DMA_BLK_SIZE 0x000fffff + + +DEFINE_DEVICE_TYPE(VRC5074, vrc5074_device, "vrc5074", "NEC VRC5074 System Controller") DEVICE_ADDRESS_MAP_START(config_map, 32, vrc5074_device) AM_RANGE(0x00000018, 0x00000027) AM_READWRITE(sdram_addr_r, sdram_addr_w) @@ -34,7 +140,7 @@ DEVICE_ADDRESS_MAP_START(target1_map, 32, vrc5074_device) ADDRESS_MAP_END vrc5074_device::vrc5074_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock) - : pci_host_device(mconfig, VRC5074, "NEC VRC5074 System Controller", tag, owner, clock, "vrc5074", __FILE__), + : pci_host_device(mconfig, VRC5074, tag, owner, clock), m_cpu_space(nullptr), m_cpu(nullptr), cpu_tag(nullptr), m_mem_config("memory_space", ENDIANNESS_LITTLE, 32, 32), m_io_config("io_space", ENDIANNESS_LITTLE, 32, 32), |