ref: b548687a8ed1d0a159c9d3f3f921d93bbb56908e
dir: /os/cerf1110/archcerf.c/
/* * Intrinsyc Cerf cube */ #include "u.h" #include "../port/lib.h" #include "mem.h" #include "dat.h" #include "fns.h" #include "../port/error.h" #include "io.h" #include "draw.h" #include <memdraw.h> #include "../port/netif.h" #include "etherif.h" #include "../port/flashif.h" enum { /* Cerf GPIO assignment */ LED0 = 1<<0, /* active high */ LED1 = 1<<1, LED2 = 1<<2, LED3 = 1<<3, /* 4 to 15 appear on J2 */ CFBVD1 = 1<<20, CFBVD2 = 1<<19, CFReset = 1<<21, /* active low for IDE mode; active high for IO or memory mode */ CFRdypin = 22, CFRdy = 1<<CFRdypin, /* RDY/nBSY */ CFnCDxpin = 23, CFnCDx = 1<<CFnCDxpin, /* low => card inserted */ EnableRS232In = 1<<24, EnableRS232Out = 1<<25, /* CS8900 interrupt on 26, active high */ /* CS8900 nHWSLEEP on 27 */ }; void archreset(void) { GpioReg *g = GPIOREG; g->grer = 0; g->gfer = 0; g->gedr = g->gedr; g->gpdr = 0; g->gpdr = EnableRS232In | EnableRS232Out | CFReset; g->gpsr = EnableRS232In | EnableRS232Out; GPCLKREG->gpclkr0 |= 1; /* SUS=1 for uart on serial 1 */ } void archconfinit(void) { int w; conf.topofmem = 0xC0000000+32*MB; w = PMGRREG->ppcr & 0x1f; m->cpuhz = CLOCKFREQ*(w*4+16); conf.useminicache = 1; conf.portrait = 1; /* should take from param flash or allow dynamic change */ } void archconsole(void) { uartspecial(0, 38400, 'n', &kbdq, &printq, kbdcr2nl); } void archuartpower(int, int) { } void kbdinit(void) { } void archreboot(void) { dcflushall(); GPIOREG->gedr = 1<<0; mmuputctl(mmugetctl() & ~CpCaltivec); /* restore bootstrap's vectors */ RESETREG->rsrr = 1; /* software reset */ for(;;) spllo(); } void archflashwp(Flash*, int) { } /* * for devflash.c:/^flashreset * retrieve flash type, virtual base and length and return 0; * return -1 on error (no flash) */ int archflashreset(int bank, Flash *f) { if(bank != 0) return -1; f->type = "cfi16"; f->addr = KADDR(FLASHMEM); f->size = 0; f->width = 2; return 0; } /* * pcmcia */ int pcmpowered(int slotno) { if(slotno) return 0; return 3; } void pcmpower(int slotno, int on) { USED(slotno, on); } void pcmreset(int slot) { if(slot != 0) return; GPIOREG->gpsr = CFReset; delay(100); GPIOREG->gpcr = CFReset; } int pcmpin(int slot, int type) { if(slot) return -1; switch(type){ case PCMready: return CFRdypin; case PCMeject: return CFnCDxpin; case PCMstschng: return -1; } } void pcmsetvpp(int slot, int vpp) { USED(slot, vpp); } /* * set ether parameters: the contents should be derived from EEPROM or NVRAM */ int archether(int ctlno, Ether *ether) { if(ctlno > 0) return -1; sprint(ether->type, "CS8900"); ether->nopt = 0; ether->irq = 26; /* GPIO */ ether->itype = BusGPIOrising; return 1; }