Menu
▾
▴
linux-mips-commits
|
From: James S. <jsi...@us...> - 2001-10-31 18:29:12
|
Update of /cvsroot/linux-mips/linux/arch/mips/philips/nino
In directory usw-pr-cvs1:/tmp/cvs-serv10055
Modified Files:
int-handler.S irq.c kgdb.c power.c prom.c setup.c time.c
Removed Files:
rtc.c
Log Message:
Your daily dose of Nino updates.
Index: int-handler.S
===================================================================
RCS file: /cvsroot/linux-mips/linux/arch/mips/philips/nino/int-handler.S,v
retrieving revision 1.2
retrieving revision 1.3
diff -u -d -r1.2 -r1.3
--- int-handler.S 2001/10/26 22:30:51 1.2
+++ int-handler.S 2001/10/31 18:29:07 1.3
@@ -1,9 +1,14 @@
/*
- * int-handler.S: Interrupt exception dispatch code for Philips Nino
+ * arch/mips/philips/nino/int-handler.S
*
- * Copyright (C) 2001 Steven J. Hill (sj...@re...)
+ * Copyright (C) 2001 Steven J. Hill (sj...@re...)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * Interrupt exception dispatch code for Philips Nino
*/
-
#include <asm/asm.h>
#include <asm/mipsregs.h>
#include <asm/regdef.h>
@@ -12,27 +17,17 @@
/*
* Here is the table of interrupts for the Philips Nino
* which uses the Philips PR31700/Toshiba TMPR3912 core.
- *
- * MIPS IRQ PR31700 IRQ Source
- * -------- ----------- ------
- * 0 1 Sound, LCD, telecom
- * 1 2 UARTA & UARTB
- * 2 3 MFIO (positive edge)
- * 3 4 MFIO (negative edge)
- * 4 5 Timers, power management
- * 5 6 High priority interrupts
- *
- * We handle the IRQ according to the priorities below:
- *
- * Highest ---- High priority interrupts
- * UARTA & UARTB
- * Timers, power management
- * Sound, LCD, telecom
- * Multi-function IO (positive edge)
- * Lowest ---- Multi-function IO (negative edge)
*
- * then we just return, if multiple IRQs are pending then
- * we will just take another exception, big deal.
+ * MIPS IRQ Description
+ * -------- --------------------------------
+ * 0 SW0 interrupt (unused)
+ * 1 SW1 interrupt (unused)
+ * 2
+ * 3
+ * 4 PR31700 low priority interrupts
+ * 5
+ * 6 PR31700 high priority interrupts
+ * 7
*/
.text
@@ -43,40 +38,29 @@
SAVE_ALL
CLI
.set at
- mfc0 s0, CP0_CAUSE # get irq mask
+ mfc0 s0, CP0_CAUSE # determine cause
- /* Check for IRQ4 */
- andi a0, s0, C_IRQ4
+ andi a0, s0, CAUSEF_IP6
beq a0, zero, 1f
- andi a0, s0, C_IRQ2 # delay slot, check for IRQ2
-
- /* High priority interrupt */
+ andi a0, s0, CAUSEF_IP4 # delay slot
move a0, sp
- jal irq4_dispatch
+ jal irq6_dispatch
nop # delay slot
-
j ret_from_irq
nop # delay slot
1:
- /* Check for IRQ2 */
beq a0, zero, 1f
nop # delay slot
-
- /* UART interrupt of some sort */
move a0, sp
- jal irq2_dispatch
+ jal irq4_dispatch
nop # delay slot
-
j ret_from_irq
nop # delay slot
1:
/* We should never get here */
move a0, sp
- jal irq_bad
- nop
-
- j ret_from_irq
+ j irq_bad
nop
END(ninoIRQ)
Index: irq.c
===================================================================
RCS file: /cvsroot/linux-mips/linux/arch/mips/philips/nino/irq.c,v
retrieving revision 1.4
retrieving revision 1.5
diff -u -d -r1.4 -r1.5
--- irq.c 2001/10/29 17:37:01 1.4
+++ irq.c 2001/10/31 18:29:07 1.5
@@ -1,7 +1,13 @@
/*
- * include/arch/mips/philips/nino/irq.c
+ * arch/mips/philips/nino/irq.c
*
- * Copyright (C) 2001 Steven J. Hill (sj...@re...)
+ * Copyright (C) 2001 Steven J. Hill (sj...@re...)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * Interrupt service routines for Philips Nino
*/
#include <linux/init.h>
#include <linux/sched.h>
@@ -13,7 +19,7 @@
extern asmlinkage void do_IRQ(int irq, struct pt_regs *regs);
-static void enable_irq4(unsigned int irq)
+static void enable_irq6(unsigned int irq)
{
if(irq == 0) {
IntEnable5 |= INT5_PERIODICINT;
@@ -21,14 +27,14 @@
}
}
-static unsigned int startup_irq4(unsigned int irq)
+static unsigned int startup_irq6(unsigned int irq)
{
- enable_irq4(irq);
+ enable_irq6(irq);
return 0; /* Never anything pending */
}
-static void disable_irq4(unsigned int irq)
+static void disable_irq6(unsigned int irq)
{
if(irq == 0) {
IntEnable6 &= ~INT6_PERIODICINT;
@@ -37,27 +43,27 @@
}
}
-#define shutdown_irq4 disable_irq4
-#define mask_and_ack_irq4 disable_irq4
+#define shutdown_irq6 disable_irq6
+#define mask_and_ack_irq6 disable_irq6
-static void end_irq4(unsigned int irq)
+static void end_irq6(unsigned int irq)
{
if(!(irq_desc[irq].status & (IRQ_DISABLED|IRQ_INPROGRESS)))
- enable_irq4(irq);
+ enable_irq6(irq);
}
-static struct hw_interrupt_type irq4_type = {
+static struct hw_interrupt_type irq6_type = {
"MIPS",
- startup_irq4,
- shutdown_irq4,
- enable_irq4,
- disable_irq4,
- mask_and_ack_irq4,
- end_irq4,
+ startup_irq6,
+ shutdown_irq6,
+ enable_irq6,
+ disable_irq6,
+ mask_and_ack_irq6,
+ end_irq6,
NULL
};
-void irq4_dispatch(struct pt_regs *regs)
+void irq6_dispatch(struct pt_regs *regs)
{
int irq = -1;
@@ -68,8 +74,7 @@
/* if irq == -1, then the interrupt has already been cleared */
if(irq == -1) {
- printk("IRQ6 Status Register = 0x%08lx\n", IntStatus6);
- goto end;
+ panic("No handler installed for MIPS IRQ6\n");
}
done:
@@ -79,68 +84,59 @@
return;
}
-static void enable_irq2(unsigned int irq)
+static void enable_irq4(unsigned int irq)
{
set_cp0_status(STATUSF_IP4);
- if(irq == 2 || irq == 3) {
+ if(irq == 2) {
IntClear2 = 0xffffffff;
- IntEnable2 = 0xfffff000;
+ IntEnable2 |= 0x07c00000;
}
}
-static unsigned int startup_irq2(unsigned int irq)
+static unsigned int startup_irq4(unsigned int irq)
{
- enable_irq2(irq);
+ enable_irq4(irq);
return 0; /* Never anything pending */
}
-static void disable_irq2(unsigned int irq)
+static void disable_irq4(unsigned int irq)
{
clear_cp0_status(STATUSF_IP4);
}
-#define shutdown_irq2 disable_irq2
-#define mask_and_ack_irq2 disable_irq2
+#define shutdown_irq4 disable_irq4
+#define mask_and_ack_irq4 disable_irq4
-static void end_irq2(unsigned int irq)
+static void end_irq4(unsigned int irq)
{
if(!(irq_desc[irq].status & (IRQ_DISABLED|IRQ_INPROGRESS)))
- enable_irq2(irq);
+ enable_irq4(irq);
}
-static struct hw_interrupt_type irq2_type = {
+static struct hw_interrupt_type irq4_type = {
"MIPS",
- startup_irq2,
- shutdown_irq2,
- enable_irq2,
- disable_irq2,
- mask_and_ack_irq2,
- end_irq2,
+ startup_irq4,
+ shutdown_irq4,
+ enable_irq4,
+ disable_irq4,
+ mask_and_ack_irq4,
+ end_irq4,
NULL
};
-void irq2_dispatch(struct pt_regs *regs)
+void irq4_dispatch(struct pt_regs *regs)
{
int irq = -1;
- if(IntStatus2 & 0xfffff000) {
+ if(IntStatus2 & 0x07c00000) {
irq = 2;
goto done;
}
- if(IntStatus2 & 0xfffff000) {
- irq = 3;
- goto done;
- }
/* if irq == -1, then the interrupt has already been cleared */
if (irq == -1) {
- printk("EEK\n");
- IntClear1 = 0xffffffff;
- IntClear3 = 0xffffffff;
- IntClear4 = 0xffffffff;
- IntClear5 = 0xffffffff;
- goto end;
+ panic("No handler installed for MIPS IRQ4\n");
}
done:
@@ -190,10 +186,10 @@
/* Initialize IRQ action handlers */
for (i = 0; i < 16; i++) {
hw_irq_controller *handler = NULL;
- if (i == 0)
+ if (i == 0 || i == 3)
+ handler = &irq6_type;
+ else if (i == 2)
handler = &irq4_type;
- else if (i > 1 && i < 4)
- handler = &irq2_type;
else
handler = NULL;
@@ -209,8 +205,8 @@
/* Enable high priority interrupts */
IntEnable6 = (INT6_GLOBALEN | 0xffff);
- /* Enable interrupts */
- change_cp0_status(ST0_IM, IE_IRQ2 | IE_IRQ4);
+ /* Enable all interrupts */
+ change_cp0_status(ST0_IM, ALLINTS);
}
void (*irq_setup)(void);
Index: kgdb.c
===================================================================
RCS file: /cvsroot/linux-mips/linux/arch/mips/philips/nino/kgdb.c,v
retrieving revision 1.1.1.1
retrieving revision 1.2
diff -u -d -r1.1.1.1 -r1.2
--- kgdb.c 2001/06/22 02:29:32 1.1.1.1
+++ kgdb.c 2001/10/31 18:29:07 1.2
@@ -1,5 +1,5 @@
/*
- * linux/arch/mips/philips/nino/kgdb.c
+ * arch/mips/philips/nino/kgdb.c
*
* Copyright (C) 2001 Steven J. Hill (sj...@re...)
*
@@ -7,7 +7,7 @@
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
- * Kernel debugging on the Philips Nino.
+ * Kernel debugging for the Philips Nino
*/
#include <asm/system.h>
#include <asm/tx3912.h>
Index: power.c
===================================================================
RCS file: /cvsroot/linux-mips/linux/arch/mips/philips/nino/power.c,v
retrieving revision 1.1.1.1
retrieving revision 1.2
diff -u -d -r1.1.1.1 -r1.2
--- power.c 2001/06/22 02:29:32 1.1.1.1
+++ power.c 2001/10/31 18:29:07 1.2
@@ -1,5 +1,5 @@
/*
- * linux/arch/mips/philips/nino/power.c
+ * arch/mips/philips/nino/power.c
*
* Copyright (C) 2000 Jim Pick <ji...@ji...>
* Copyright (C) 2001 Steven J. Hill (sj...@re...)
@@ -8,7 +8,7 @@
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
- * Power management routines on the Philips Nino.
+ * Power management routines for the Philips Nino
*/
#include <asm/tx3912.h>
Index: prom.c
===================================================================
RCS file: /cvsroot/linux-mips/linux/arch/mips/philips/nino/prom.c,v
retrieving revision 1.2
retrieving revision 1.3
diff -u -d -r1.2 -r1.3
--- prom.c 2001/10/29 17:37:01 1.2
+++ prom.c 2001/10/31 18:29:08 1.3
@@ -1,5 +1,5 @@
/*
- * linux/arch/mips/philips/nino/prom.c
+ * arch/mips/philips/nino/prom.c
*
* Copyright (C) 2001 Steven J. Hill (sj...@re...)
*
@@ -7,7 +7,7 @@
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
- * Early initialization code for the Philips Nino.
+ * Early initialization code for the Philips Nino
*/
#include <linux/config.h>
#include <linux/init.h>
Index: setup.c
===================================================================
RCS file: /cvsroot/linux-mips/linux/arch/mips/philips/nino/setup.c,v
retrieving revision 1.3
retrieving revision 1.4
diff -u -d -r1.3 -r1.4
--- setup.c 2001/10/29 17:37:01 1.3
+++ setup.c 2001/10/31 18:29:08 1.4
@@ -1,5 +1,5 @@
/*
- * linux/arch/mips/philips/nino/setup.c
+ * arch/mips/philips/nino/setup.c
*
* Copyright (C) 2001 Steven J. Hill (sj...@re...)
*
@@ -7,7 +7,7 @@
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
- * Interrupt and exception initialization for Philips Nino.
+ * Interrupt and exception initialization for Philips Nino
*/
#include <linux/init.h>
#include <linux/interrupt.h>
Index: time.c
===================================================================
RCS file: /cvsroot/linux-mips/linux/arch/mips/philips/nino/time.c,v
retrieving revision 1.3
retrieving revision 1.4
diff -u -d -r1.3 -r1.4
--- time.c 2001/10/29 17:37:01 1.3
+++ time.c 2001/10/31 18:29:08 1.4
@@ -1,5 +1,5 @@
/*
- * linux/arch/mips/philips/nino/time.c
+ * arch/mips/philips/nino/time.c
*
* Copyright (C) 1999 Harald Koerfgen
* Copyright (C) 2000 Pavel Machek (pa...@su...)
@@ -9,7 +9,7 @@
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
- * Time handling functinos for Philips Nino.
+ * Time handling functinos for Philips Nino
*/
#include <linux/errno.h>
#include <linux/init.h>
--- rtc.c DELETED ---
|
×
Want the latest updates on software, tech news, and AI?
Get latest updates about software, tech news, and AI from SourceForge directly in your inbox once a month.
Thanks for helping keep SourceForge clean.
X