From: Eric Miao <eric.y.miao@gmail.com>
Date: Wed, 6 Jun 2007 05:49:59 +0000 (+0100)
Subject: [ARM] 4440/1: PXA: enable the checking of ICIP2 for IRQs
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=8118d124949ed8ff1a450e0c0d13cfab8c2ff7aa;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git

[ARM] 4440/1: PXA: enable the checking of ICIP2 for IRQs

ICIP2 is not examined during IRQ entrance, this patch add the
checking if the processor is PXA27x or later, with CoreG bits
in CPUID (Core Generation) > 1

Signed-off-by: eric miao <eric.miao@marvell.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---

diff --git a/include/asm-arm/arch-pxa/entry-macro.S b/include/asm-arm/arch-pxa/entry-macro.S
index b7bf0dd4fa44..b7e730851461 100644
--- a/include/asm-arm/arch-pxa/entry-macro.S
+++ b/include/asm-arm/arch-pxa/entry-macro.S
@@ -20,15 +20,33 @@
 		.endm
 
 		.macro	get_irqnr_and_base, irqnr, irqstat, base, tmp
-#ifdef CONFIG_PXA27x
-		mrc	p6, 0, \irqstat, c0, c0, 0		@ ICIP
-		mrc	p6, 0, \irqnr, c1, c0, 0		@ ICMR
-#else
+		mrc	p15, 0, \tmp, c0, c0, 0		@ CPUID
+		mov	\tmp, \tmp, lsr #13
+		and	\tmp, \tmp, #0x7		@ Core G
+		cmp	\tmp, #1
+		bhi	1004f
+
 		mov	\base, #io_p2v(0x40000000)	@ IIR Ctl = 0x40d00000
 		add	\base, \base, #0x00d00000
 		ldr	\irqstat, [\base, #0]		@ ICIP
 		ldr	\irqnr, [\base, #4]		@ ICMR
-#endif
+		b	1002f
+
+1004:
+		mrc	p6, 0, \irqstat, c6, c0, 0	@ ICIP2
+		mrc	p6, 0, \irqnr, c7, c0, 0	@ ICMR2
+		ands	\irqstat, \irqstat, \irqnr
+		beq	1003f
+		rsb	\irqstat, \irqnr, #0
+		and	\irqstat, \irqstat, \irqnr
+		clz	\irqnr, \irqstat
+		rsb	\irqnr, \irqnr, #31
+		add	\irqnr, \irqnr, #32
+		b	1001f
+1003:
+		mrc	p6, 0, \irqstat, c0, c0, 0	@ ICIP
+		mrc	p6, 0, \irqnr, c1, c0, 0	@ ICMR
+1002:
 		ands	\irqnr, \irqstat, \irqnr
 		beq	1001f
 		rsb	\irqstat, \irqnr, #0