Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-…

…linus * 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus: [MIPS] cevt-txx9: Reset timer counter on initialization [MIPS] IP22: Fix crashes due to wrong L1_CACHE_BYTES [MIPS] IP32: Fix unexpected irq 71
git-mirror · Jul 3, 2008 · 97055a9 · 97055a9
2 parents ee3ece8 + 8986d2f
commit 97055a9
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Showing 3 changed files with 9 additions and 1 deletion.
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
@@ -1006,7 +1006,7 @@ config BOOT_ELF32
 config MIPS_L1_CACHE_SHIFT
 	int
 	default "4" if MACH_DECSTATION
-	default "7" if SGI_IP27 || SGI_IP28 || SNI_RM
+	default "7" if SGI_IP22 || SGI_IP27 || SGI_IP28 || SNI_RM
 	default "4" if PMC_MSP4200_EVAL
 	default "5"
 

diff --git a/arch/mips/kernel/cevt-txx9.c b/arch/mips/kernel/cevt-txx9.c
@@ -161,6 +161,9 @@ void __init txx9_tmr_init(unsigned long baseaddr)
 	struct txx9_tmr_reg __iomem *tmrptr;
 
 	tmrptr = ioremap(baseaddr, sizeof(struct txx9_tmr_reg));
+	/* Start once to make CounterResetEnable effective */
+	__raw_writel(TXx9_TMTCR_CRE | TXx9_TMTCR_TCE, &tmrptr->tcr);
+	/* Stop and reset the counter */
 	__raw_writel(TXx9_TMTCR_CRE, &tmrptr->tcr);
 	__raw_writel(0, &tmrptr->tisr);
 	__raw_writel(0xffffffff, &tmrptr->cpra);

diff --git a/arch/mips/sgi-ip32/ip32-irq.c b/arch/mips/sgi-ip32/ip32-irq.c
@@ -425,6 +425,11 @@ static void ip32_irq0(void)
 	BUILD_BUG_ON(MACEISA_SERIAL2_RDMAOR_IRQ - MACEISA_AUDIO_SW_IRQ != 31);
 
 	crime_int = crime->istat & crime_mask;
+
+	/* crime sometime delivers spurious interrupts, ignore them */
+	if (unlikely(crime_int == 0))
+		return;
+
 	irq = MACE_VID_IN1_IRQ + __ffs(crime_int);
 
 	if (crime_int & CRIME_MACEISA_INT_MASK) {