1 files changed, 177 insertions, 0 deletions
diff --git a/os/cerf1110/archcerf.c b/os/cerf1110/archcerf.c
new file mode 100644
index 00000000..86eb902e
--- /dev/null
+++ b/os/cerf1110/archcerf.c
@@ -0,0 +1,177 @@
+/*
+ * 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;
+}