IRQ handler rewrite by Gabor Juhos, uses C no longer assembly

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@7464 3c298f89-4303-0410-b956-a3cf2f4a3e73

2 files changed, 128 insertions, 0 deletions

diff --git a/target/linux/adm5120-2.6/files/include/asm-mips/mach-adm5120/adm5120_intc.h b/target/linux/adm5120-2.6/files/include/asm-mips/mach-adm5120/adm5120_intc.h
new file mode 100644
index 000000000..1d16fdcda
--- /dev/null
+++ b/target/linux/adm5120-2.6/files/include/asm-mips/mach-adm5120/adm5120_intc.h
@@ -0,0 +1,73 @@
+/*
+ *  ADM5120 interrupt controller definitions
+ *
+ *  This header file defines the hardware registers of the ADM5120 SoC
+ *  built-in interrupt controller.
+ *
+ *  Copyright (C) 2007 OpenWrt.org
+ *  Copyright (C) 2007 Gabor Juhos <juhosg@freemail.hu>
+ *
+ *  This program is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU General Public License
+ *  as published by the Free Software Foundation; either version 2
+ *  of the License, or (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the
+ *  Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ *  Boston, MA  02110-1301, USA.
+ */
+#ifndef _ADM5120_INTC_H_
+#define _ADM5120_INTC_H_
+
+/*
+ * INTC register offsets
+ */
+#define INTC_REG_IRQ_STATUS		0x00 /* Interrupt status after masking */
+#define INTC_REG_IRQ_RAW_STATUS		0x04 /* Interrupt status before masking */
+#define INTC_REG_IRQ_ENABLE		0x08 /* Used to enable the interrupt sources */
+#define INTC_REG_IRQ_ENABLE_CLEAR	0x0C /* Used to disable the interrupt sources */
+#define INTC_REG_IRQ_DISABLE		INTC_REG_IRQ_ENABLE_CLEAR
+#define INTC_REG_INT_MODE		0x14 /* The interrupt mode of the sources */
+#define INTC_REG_FIQ_STATUS		0x18 /* FIQ status */
+#define INTC_REG_IRQ_TEST_SOURCE	0x1C
+#define INTC_REG_IRQ_SOURCE_SELECT	0x20
+#define INTC_REG_INT_LEVEL		0x24
+
+/*
+ * INTC IRQ numbers
+ */
+#define INTC_IRQ_TIMER	0	/* built in timer */
+#define INTC_IRQ_UART0	1	/* built-in UART0 */
+#define INTC_IRQ_UART1	2	/* built-in UART1 */
+#define INTC_IRQ_USBC	3	/* USB Host Controller */
+#define INTC_IRQ_GPIO2	4	/* GPIO line 2 */
+#define INTC_IRQ_GPIO4	5	/* GPIO line 4 */
+#define INTC_IRQ_PCI0	6	/* PCI slot 2 */
+#define INTC_IRQ_PCI1	7	/* PCI slot 3 */
+#define INTC_IRQ_PCI2	8	/* PCI slot 4 */
+#define INTC_IRQ_SWITCH	9	/* built-in ethernet switch */
+#define INTC_IRQ_LAST	INTC_IRQ_SWITCH
+#define INTC_IRQ_COUNT	10
+
+/*
+ * INTC register bits
+ */
+#define INTC_INT_TIMER	( 1 << INTC_IRQ_TIMER )
+#define INTC_INT_UART0	( 1 << INTC_IRQ_UART0 )
+#define INTC_INT_UART1	( 1 << INTC_IRQ_UART1 )
+#define INTC_INT_USBC	( 1 << INTC_IRQ_USBC )
+#define INTC_INT_INTX0	( 1 << INTC_IRQ_INTX0 )
+#define INTC_INT_INTX1	( 1 << INTC_IRQ_INTX1 )
+#define INTC_INT_PCI0	( 1 << INTC_IRQ_PCI0 )
+#define INTC_INT_PCI1	( 1 << INTC_IRQ_PCI1 )
+#define INTC_INT_PCI2	( 1 << INTC_IRQ_PCI2 )
+#define INTC_INT_SWITCH	( 1 << INTC_IRQ_SWITCH )
+#define INTC_INT_ALL	(( 1 << INTC_IRQ_COUNT)-1)
+
+#endif /* _ADM5120_INTC_H_ */
diff --git a/target/linux/adm5120-2.6/files/include/asm-mips/mach-adm5120/adm5120_irq.h b/target/linux/adm5120-2.6/files/include/asm-mips/mach-adm5120/adm5120_irq.h
new file mode 100644
index 000000000..655df32bf
--- /dev/null
+++ b/target/linux/adm5120-2.6/files/include/asm-mips/mach-adm5120/adm5120_irq.h
@@ -0,0 +1,55 @@
+/*
+ *  $Id$
+ *
+ *  ADM5120 specific IRQ numbers
+ *
+ *  Copyright (C) 2007 OpenWrt.org
+ *  Copyright (C) 2007 Gabor Juhos <juhosg@freemail.hu>
+ *
+ *  This program is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU General Public License
+ *  as published by the Free Software Foundation; either version 2
+ *  of the License, or (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the
+ *  Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ *  Boston, MA  02110-1301, USA.
+ *
+ */
+#ifndef _ADM5120_IRQ_H_
+#define _ADM5120_IRQ_H_
+
+#include <asm/mach-adm5120/adm5120_intc.h>
+
+#define MIPS_IRQ_HW0		2
+#define MIPS_IRQ_COUNTER	7
+#define MIPS_IRQ_COUNT		8
+
+#define ADM5120_CPU_IRQ_BASE	0
+#define ADM5120_INTC_IRQ_BASE	(ADM5120_CPU_IRQ_BASE+MIPS_IRQ_COUNT)
+#define ADM5120_SWITCH_IRQ_BASE (ADM5120_INTC_IRQ_BASE+INTC_IRQ_COUNT)
+
+#define ADM5120_CPU_IRQ(x)	(ADM5120_CPU_IRQ_BASE + (x))
+#define ADM5120_INTC_IRQ(x)	(ADM5120_INTC_IRQ_BASE + (x))
+
+#define ADM5120_IRQ_INTC	ADM5120_CPU_IRQ(MIPS_IRQ_HW0)
+#define ADM5120_IRQ_COUNTER	ADM5120_CPU_IRQ(MIPS_IRQ_COUNTER)
+
+#define ADM5120_IRQ_TIMER	ADM5120_INTC_IRQ(INTC_IRQ_TIMER)
+#define ADM5120_IRQ_UART0	ADM5120_INTC_IRQ(INTC_IRQ_UART0)
+#define ADM5120_IRQ_UART1	ADM5120_INTC_IRQ(INTC_IRQ_UART1)
+#define ADM5120_IRQ_USBC	ADM5120_INTC_IRQ(INTC_IRQ_USBC)
+#define ADM5120_IRQ_GPIO2	ADM5120_INTC_IRQ(INTC_IRQ_GPIO2)
+#define ADM5120_IRQ_GPIO4	ADM5120_INTC_IRQ(INTC_IRQ_GPIO4)
+#define ADM5120_IRQ_PCI0	ADM5120_INTC_IRQ(INTC_IRQ_PCI0)
+#define ADM5120_IRQ_PCI1	ADM5120_INTC_IRQ(INTC_IRQ_PCI1)
+#define ADM5120_IRQ_PCI2	ADM5120_INTC_IRQ(INTC_IRQ_PCI2)
+#define ADM5120_IRQ_SWITCH	ADM5120_INTC_IRQ(INTC_IRQ_SWITCH)
+
+#endif