--- a/sys/src/9/bcm/bootwifi.rc	Wed Apr 22 10:31:48 2026
+++ b/sys/src/9/bcm/bootwifi.rc	Sat Mar 20 09:55:10 2021
@@ -46,7 +46,12 @@
 need fs
 need auth
 
-factotum -u -s factotum -a $auth
+switch ($service) {
+	case cpu
+		factotum -S -s factotum -a $auth
+	case terminal
+		factotum -u -s factotum -a $auth
+}
 joinwifi
 ipconfig ether $wifi
 srv tcp!$fs!564 boot
--- a/sys/src/9/bcm/clock.c	Wed Apr 22 10:31:48 2026
+++ b/sys/src/9/bcm/clock.c	Thu Aug 31 13:39:46 2023
@@ -32,7 +32,7 @@
 
 	SystimerFreq	= 1*Mhz,
 	MaxPeriod	= SystimerFreq / HZ,
-	MinPeriod	= 10,
+	MinPeriod	= 100,
 
 };
 
@@ -121,7 +121,7 @@
 {
 	Systimers *tn;
 	Armtimer *tm;
-	u32int t0, t1, tstart, tend;
+	u32int t0, t1, tstart;
 
 	if(((cprdfeat1() >> 16) & 0xF) != 0) {
 		/* generic timer supported */
@@ -139,10 +139,9 @@
 	do{
 		t0 = lcycles();
 	}while(tn->clo == tstart);
-	tend = tstart + 10000;
 	do{
 		t1 = lcycles();
-	}while(tn->clo != tend);
+	}while(tn->clo - tstart < 10000);
 	t1 -= t0;
 	m->cpuhz = 100 * t1;
 	m->cpumhz = (m->cpuhz + Mhz/2 - 1) / Mhz;
--- a/sys/src/9/bcm/emmc.c	Wed Apr 22 10:31:48 2026
+++ b/sys/src/9/bcm/emmc.c	Sun Mar  1 09:51:30 2026
@@ -294,14 +294,14 @@
 	int i;
 
 	r = (u32int*)EMMCREGS;
-	WR(Interrupt, Cardintr);
 	while(((i = r[Interrupt]) & Cardintr) == 0){
 		if(!wait)
 			return 0;
 		WR(Irpten, r[Irpten] | Cardintr);
+		WR(Irptmask, r[Irptmask] | Cardintr);
 		sleep(&emmc.cardr, cardintready, 0);
 	}
-	WR(Interrupt, Cardintr);
+	WR(Irptmask, r[Irptmask] & ~Cardintr);
 	return i;
 }
 
--- a/sys/src/9/bcm/main.c	Thu Apr 23 14:39:22 2026
+++ b/sys/src/9/bcm/main.c	Mon Apr 10 19:47:34 2023
@@ -517,7 +517,7 @@
 	uintptr pa;
 	char *p;
 
-	if(0 && (p = getconf("service")) != nil){
+	if((p = getconf("service")) != nil){
 		if(strcmp(p, "cpu") == 0)
 			cpuserver = 1;
 		else if(strcmp(p,"terminal") == 0)
--- a/sys/src/9/bcm/mmu64.c	Thu Apr 23 14:39:22 2026
+++ b/sys/src/9/bcm/mmu64.c	Sat Mar 28 17:28:14 2026
@@ -390,7 +390,7 @@
 
 	if(page->cachectl[m->machno] == PG_TXTFLUSH){
 		/* pio() sets PG_TXTFLUSH whenever a text pg has been written */
-		if(cankaddr(page->pa))
+		if((page->pa & PTEHIMEM) == 0 && cankaddr(page->pa))
 			cachedwbse((void*)(page->pa|KZERO), BY2PG);
 		cacheiinvse((void*)page->va, BY2PG);
 		page->cachectl[m->machno] = PG_NOFLUSH;
--- a/sys/src/9/bcm/screen.c	Thu Apr 23 15:05:02 2026
+++ b/sys/src/9/bcm/screen.c	Thu Mar 26 09:51:58 2026
@@ -373,6 +373,8 @@
 uchar*
 attachscreen(Rectangle *r, ulong *chan, int* d, int *width, int *softscreen)
 {
+	if(gscreen == nil)
+		return nil;
 	*r = gscreen->r;
 	*d = gscreen->depth;
 	*chan = gscreen->chan;