Blackfin arch: clear EMAC_SYSTAT during IRQ init rather than early he…

…ad.S as we dont need it setup that early

Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>

arch/blackfin/mach-bf527/head.S

@@ -40,15 +40,6 @@
 __INIT
 
 ENTRY(_mach_early_start)
-#if defined(CONFIG_BF527)
-	p0.h = hi(EMAC_SYSTAT);
-	p0.l = lo(EMAC_SYSTAT);
-	R0.h = 0xFFFF; /* Clear EMAC Interrupt Status bits */
-	R0.l = 0xFFFF;
-	[P0] = R0;
-	SSYNC;
-#endif
-
 	/* Initialise UART - when booting from u-boot, the UART is not disabled
 	 * so if we dont initalize here, our serial console gets hosed */
 	p0.h = hi(UART1_LCR);

arch/blackfin/mach-bf537/head.S

@@ -54,15 +54,6 @@ ENTRY(_mach_early_start)
 	W[P0] = R0.L;
 	SSYNC;
 
-#if !defined(CONFIG_BF534)
-	p0.h = hi(EMAC_SYSTAT);
-	p0.l = lo(EMAC_SYSTAT);
-	R0.h = 0xFFFF; /* Clear EMAC Interrupt Status bits */
-	R0.l = 0xFFFF;
-	[P0] = R0;
-	SSYNC;
-#endif
-
 	/* Initialise UART - when booting from u-boot, the UART is not disabled
 	 * so if we dont initalize here, our serial console gets hosed */
 	p0.h = hi(BFIN_UART_LCR);

arch/blackfin/mach-common/ints-priority.c

@@ -983,6 +983,11 @@ int __init init_arch_irq(void)
 
 	local_irq_disable();
 
+#if defined(CONFIG_BF527) || defined(CONFIG_BF536) || defined(CONFIG_BF537)
+	/* Clear EMAC Interrupt Status bits so we can demux it later */
+	bfin_write_EMAC_SYSTAT(-1);
+#endif
+
 #ifdef CONFIG_BF54x
 # ifdef CONFIG_PINTx_REASSIGN
 	pint[0]->assign = CONFIG_PINT0_ASSIGN;