* [PATCH 1/2] remove irq support fragments
@ 2011-11-28 7:30 Sascha Hauer
0 siblings, 0 replies; only message in thread
From: Sascha Hauer @ 2011-11-28 7:30 UTC (permalink / raw)
To: barebox
We never had interrupt support in barebox and we have no plans to
add interrupt support. Even if we do I doubt the current fragments
of irq support are helpful, so remove them.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
---
arch/arm/cpu/exceptions.S | 21 ---
arch/nios2/cpu/Makefile | 1 -
arch/nios2/cpu/cpu.c | 3 -
arch/nios2/cpu/exceptions.S | 9 -
arch/nios2/cpu/interrupts.c | 140 --------------
arch/nios2/lib/board.c | 3 -
arch/nios2/lib/bootm.c | 4 -
arch/ppc/lib/Makefile | 1 -
arch/ppc/lib/board.c | 7 -
arch/ppc/lib/interrupts.c | 133 --------------
arch/ppc/mach-mpc5xxx/Makefile | 1 -
arch/ppc/mach-mpc5xxx/interrupts.c | 349 ------------------------------------
arch/ppc/mach-mpc5xxx/start.S | 9 -
arch/sandbox/os/common.c | 8 -
commands/bootm.c | 2 -
drivers/net/macb.c | 13 --
include/common.h | 19 --
17 files changed, 0 insertions(+), 723 deletions(-)
delete mode 100644 arch/nios2/cpu/interrupts.c
delete mode 100644 arch/ppc/lib/interrupts.c
delete mode 100644 arch/ppc/mach-mpc5xxx/interrupts.c
diff --git a/arch/arm/cpu/exceptions.S b/arch/arm/cpu/exceptions.S
index a879755..6f35d40 100644
--- a/arch/arm/cpu/exceptions.S
+++ b/arch/arm/cpu/exceptions.S
@@ -140,25 +140,6 @@ data_abort:
.globl irq
.globl fiq
-#ifdef CONFIG_USE_IRQ
-
- .align 5
-irq:
- get_irq_stack
- irq_save_user_regs
- bl do_irq
- irq_restore_user_regs
-
- .align 5
-fiq:
- get_fiq_stack
- /* someone ought to write a more effiction fiq_save_user_regs */
- irq_save_user_regs
- bl do_fiq
- irq_restore_user_regs
-
-#else
-
.align 5
irq:
get_bad_stack
@@ -171,5 +152,3 @@ fiq:
bad_save_user_regs
bl do_fiq
-#endif
-
diff --git a/arch/nios2/cpu/Makefile b/arch/nios2/cpu/Makefile
index f15c721..0b59ec5 100644
--- a/arch/nios2/cpu/Makefile
+++ b/arch/nios2/cpu/Makefile
@@ -1,6 +1,5 @@
obj-y += start.o
obj-y += exceptions.o
obj-y += cpu.o
-obj-$(CONFIG_USE_IRQ) += interrupts.o
obj-y += traps.o
extra-y += barebox.lds
diff --git a/arch/nios2/cpu/cpu.c b/arch/nios2/cpu/cpu.c
index 102b12e..44ddf3c 100644
--- a/arch/nios2/cpu/cpu.c
+++ b/arch/nios2/cpu/cpu.c
@@ -26,9 +26,6 @@
void __noreturn reset_cpu(ulong ignored)
{
-#ifdef CONFIG_USE_IRQ
- disable_interrupts();
-#endif
/* indirect call to go beyond 256MB limitation of toolchain */
nios2_callr(RESET_ADDR);
diff --git a/arch/nios2/cpu/exceptions.S b/arch/nios2/cpu/exceptions.S
index 8e024ce..402e5af 100644
--- a/arch/nios2/cpu/exceptions.S
+++ b/arch/nios2/cpu/exceptions.S
@@ -82,16 +82,7 @@ _exception:
rdctl et, ipending
beq et, r0, 0f
-#ifdef CONFIG_USE_IRQ
-
- /* HARDWARE INTERRUPT: Call interrupt handler */
- movhi r3, %hi(external_interrupt)
- ori r3, r3, %lo(external_interrupt)
- mov r4, sp /* ptr to regs */
- callr r3
-#else
br _exception_return
-#endif
/* Return address fixup: execution resumes by re-issue of
* interrupted instruction at ea-4 (ea == r29). Here we do
diff --git a/arch/nios2/cpu/interrupts.c b/arch/nios2/cpu/interrupts.c
deleted file mode 100644
index f443bfd..0000000
--- a/arch/nios2/cpu/interrupts.c
+++ /dev/null
@@ -1,140 +0,0 @@
-/*
- * (C) Copyright 2000-2002
- * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
- *
- * (C) Copyright 2004, Psyent Corporation <www.psyent.com>
- * Scott McNutt <smcnutt@psyent.com>
- *
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * 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., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
- */
-
-#include <nios2.h>
-#include <asm/nios2-io.h>
-#include <asm/types.h>
-#include <io.h>
-#include <asm/ptrace.h>
-#include <common.h>
-#include <command.h>
-#include <watchdog.h>
-
-/****************************************************************************/
-
-struct irq_action {
- interrupt_handler_t *handler;
- void *arg;
- int count;
-};
-
-static struct irq_action vecs[32];
-
-/****************************************************************************/
-
-int disable_interrupts(void)
-{
- int val = rdctl(CTL_STATUS);
- wrctl(CTL_STATUS, val & ~STATUS_IE);
- return val & STATUS_IE;
-}
-
-void enable_interrupts(void)
-{
- int val = rdctl(CTL_STATUS);
- wrctl(CTL_STATUS, val | STATUS_IE);
-}
-
-void external_interrupt(struct pt_regs *regs)
-{
- unsigned irqs;
- struct irq_action *act;
-
- /* Evaluate only irqs that are both enabled AND pending */
- irqs = rdctl(CTL_IENABLE) & rdctl(CTL_IPENDING);
- act = vecs;
-
- /* Assume (as does the Nios2 HAL) that bit 0 is highest
- * priority. NOTE: There is ALWAYS a handler assigned
- * (the default if no other).
- */
- while (irqs) {
- if (irqs & 1) {
- act->handler(act->arg);
- act->count++;
- }
- irqs >>= 1;
- act++;
- }
-
-}
-
-static void def_hdlr(void *arg)
-{
- unsigned irqs = rdctl(CTL_IENABLE);
-
- /* Disable the individual interrupt -- with gratuitous
- * warning.
- */
- irqs &= ~(1 << (int)arg);
- wrctl(CTL_IENABLE, irqs);
- printf("WARNING: Disabling unhandled interrupt: %d\n",
- (int)arg);
-}
-
-/*************************************************************************/
-void irq_install_handler(int irq, interrupt_handler_t *hdlr, void *arg)
-{
- int flag;
- struct irq_action *act;
- unsigned ena = rdctl(CTL_IENABLE);
-
- if ((irq < 0) || (irq > 31))
- return;
- act = &vecs[irq];
-
- flag = disable_interrupts();
- if (hdlr) {
- act->handler = hdlr;
- act->arg = arg;
- ena |= (1 << irq); /* enable */
- } else {
- act->handler = def_hdlr;
- act->arg = (void *)irq;
- ena &= ~(1 << irq); /* disable */
- }
- wrctl(CTL_IENABLE, ena);
-
- if (flag)
- enable_interrupts();
-}
-
-
-int interrupt_init(void)
-{
- int i;
-
- /* Assign the default handler to all */
- for (i = 0; i < 32; i++) {
- vecs[i].handler = def_hdlr;
- vecs[i].arg = (void *)i;
- vecs[i].count = 0;
- }
-
- enable_interrupts();
- return 0;
-}
-
diff --git a/arch/nios2/lib/board.c b/arch/nios2/lib/board.c
index 07f045b..d50f05a 100644
--- a/arch/nios2/lib/board.c
+++ b/arch/nios2/lib/board.c
@@ -40,8 +40,5 @@ core_initcall(altera_mem_malloc_init);
void arch_shutdown(void)
{
-#ifdef CONFIG_USE_IRQ
- disable_interrupts();
-#endif
}
diff --git a/arch/nios2/lib/bootm.c b/arch/nios2/lib/bootm.c
index 34e2bd2..c38243f 100644
--- a/arch/nios2/lib/bootm.c
+++ b/arch/nios2/lib/bootm.c
@@ -43,10 +43,6 @@ static int do_bootm_linux(struct image_data *idata)
kernel = (void (*)(int, int, int, const char *))ntohl(os_header->ih_ep);
-#ifdef CONFIG_USE_IRQ
- disable_interrupts();
-#endif
-
if (relocate_image(idata->os, (void *)ntohl(os_header->ih_load)))
return -1;
diff --git a/arch/ppc/lib/Makefile b/arch/ppc/lib/Makefile
index c35fd08..b611ddf 100644
--- a/arch/ppc/lib/Makefile
+++ b/arch/ppc/lib/Makefile
@@ -1,7 +1,6 @@
obj-y += bat_rw.o
obj-y += board.o
obj-y += extable.o
-obj-$(CONFIG_USE_IRQ) += interrupts.o
obj-y += kgdb.o
obj-y += ppcstring.o
obj-y += ticks.o
diff --git a/arch/ppc/lib/board.c b/arch/ppc/lib/board.c
index 82ba458..0b610a5 100644
--- a/arch/ppc/lib/board.c
+++ b/arch/ppc/lib/board.c
@@ -63,13 +63,6 @@ void board_init_r (ulong end_of_ram)
*/
trap_init (0);
- /*
- * Enable Interrupts
- */
-#ifdef CONFIG_USE_IRQ
- interrupt_init ();
-#endif
-
/* Initialization complete - start the monitor */
start_barebox();
diff --git a/arch/ppc/lib/interrupts.c b/arch/ppc/lib/interrupts.c
deleted file mode 100644
index 72ddf36..0000000
--- a/arch/ppc/lib/interrupts.c
+++ /dev/null
@@ -1,133 +0,0 @@
-/*
- * (C) Copyright 2000-2002
- * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
- *
- * (C) Copyright 2003
- * Gleb Natapov <gnatapov@mrv.com>
- *
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * 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., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
- */
-
-#include <common.h>
-#include <asm/processor.h>
-#include <watchdog.h>
-#ifdef CONFIG_STATUS_LED
-#include <status_led.h>
-#endif
-
-#ifdef CONFIG_SHOW_ACTIVITY
- extern void board_show_activity (ulong);
-#endif /* CONFIG_SHOW_ACTIVITY */
-
-#ifndef CFG_WATCHDOG_FREQ
-#define CFG_WATCHDOG_FREQ (CFG_HZ / 2)
-#endif
-
-extern int interrupt_init_cpu (unsigned *);
-extern void timer_interrupt_cpu (struct pt_regs *);
-
-static unsigned decrementer_count; /* count value for 1e6/HZ microseconds */
-
-static __inline__ unsigned long get_msr (void)
-{
- unsigned long msr;
-
- asm volatile ("mfmsr %0":"=r" (msr):);
-
- return msr;
-}
-
-static __inline__ void set_msr (unsigned long msr)
-{
- asm volatile ("mtmsr %0"::"r" (msr));
-}
-
-static __inline__ unsigned long get_dec (void)
-{
- unsigned long val;
-
- asm volatile ("mfdec %0":"=r" (val):);
-
- return val;
-}
-
-
-static __inline__ void set_dec (unsigned long val)
-{
- if (val)
- asm volatile ("mtdec %0"::"r" (val));
-}
-
-
-void enable_interrupts (void)
-{
- set_msr (get_msr () | MSR_EE);
-}
-
-/* returns flag if MSR_EE was set before */
-int disable_interrupts (void)
-{
- ulong msr = get_msr ();
-
- set_msr (msr & ~MSR_EE);
- return ((msr & MSR_EE) != 0);
-}
-
-int interrupt_init (void)
-{
- int ret;
-
- /* call cpu specific function from $(CPU)/interrupts.c */
- ret = interrupt_init_cpu (&decrementer_count);
-
- if (ret)
- return ret;
-
- set_dec (decrementer_count);
-
- set_msr (get_msr () | MSR_EE);
-
- return (0);
-}
-
-static volatile ulong timestamp = 0;
-
-void timer_interrupt (struct pt_regs *regs)
-{
- /* call cpu specific function from $(CPU)/interrupts.c */
- timer_interrupt_cpu (regs);
-
- /* Restore Decrementer Count */
- set_dec (decrementer_count);
-
- timestamp++;
-
-#if defined(CONFIG_WATCHDOG) || defined (CONFIG_HW_WATCHDOG)
- if ((timestamp % (CFG_WATCHDOG_FREQ)) == 0)
- WATCHDOG_RESET ();
-#endif /* CONFIG_WATCHDOG || CONFIG_HW_WATCHDOG */
-
-#ifdef CONFIG_STATUS_LED
- status_led_tick (timestamp);
-#endif /* CONFIG_STATUS_LED */
-
-#ifdef CONFIG_SHOW_ACTIVITY
- board_show_activity (timestamp);
-#endif /* CONFIG_SHOW_ACTIVITY */
-}
diff --git a/arch/ppc/mach-mpc5xxx/Makefile b/arch/ppc/mach-mpc5xxx/Makefile
index e07062c..be68c99 100644
--- a/arch/ppc/mach-mpc5xxx/Makefile
+++ b/arch/ppc/mach-mpc5xxx/Makefile
@@ -5,7 +5,6 @@ obj-y += speed.o
obj-y += traps.o
extra-y += start.o
obj-$(CONFIG_MPC5200) += firmware_sc_task_bestcomm.impl.o
-obj-$(CONFIG_USE_IRQ) += interrupts.o
obj-$(CONFIG_REGINFO) += reginfo.o
#obj-y += firmware_sc_task.impl.o
diff --git a/arch/ppc/mach-mpc5xxx/interrupts.c b/arch/ppc/mach-mpc5xxx/interrupts.c
deleted file mode 100644
index 4838bc5..0000000
--- a/arch/ppc/mach-mpc5xxx/interrupts.c
+++ /dev/null
@@ -1,349 +0,0 @@
-/*
- * (C) Copyright 2006
- * Detlev Zundel, DENX Software Engineering, dzu@denx.de
- *
- * (C) Copyright -2003
- * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
- *
- * (C) Copyright 2001
- * Josh Huber <huber@mclx.com>, Mission Critical Linux, Inc.
- *
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * 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., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
- */
-
-/* this section was ripped out of arch/ppc/syslib/mpc52xx_pic.c in the
- * Linux 2.6 source with the following copyright.
- *
- * Based on (well, mostly copied from) the code from the 2.4 kernel by
- * Dale Farnsworth <dfarnsworth@mvista.com> and Kent Borg.
- *
- * Copyright (C) 2004 Sylvain Munaut <tnt@246tNt.com>
- * Copyright (C) 2003 Montavista Software, Inc
- */
-
-#include <common.h>
-#include <asm/processor.h>
-#include <io.h>
-#include <command.h>
-#include <mach/sdma.h>
-#include <asm/bitops.h>
-#include <mach/clocks.h>
-
-struct irq_action {
- interrupt_handler_t *handler;
- void *arg;
- ulong count;
-};
-
-static struct irq_action irq_handlers[NR_IRQS];
-
-static struct mpc5xxx_intr *intr;
-static struct mpc5xxx_sdma *sdma;
-
-static void mpc5xxx_ic_disable(unsigned int irq)
-{
- u32 val;
-
- if (irq == MPC5XXX_IRQ0) {
- val = in_be32(&intr->ctrl);
- val &= ~(1 << 11);
- out_be32(&intr->ctrl, val);
- } else if (irq < MPC5XXX_IRQ1) {
- BUG();
- } else if (irq <= MPC5XXX_IRQ3) {
- val = in_be32(&intr->ctrl);
- val &= ~(1 << (10 - (irq - MPC5XXX_IRQ1)));
- out_be32(&intr->ctrl, val);
- } else if (irq < MPC5XXX_SDMA_IRQ_BASE) {
- val = in_be32(&intr->main_mask);
- val |= 1 << (16 - (irq - MPC5XXX_MAIN_IRQ_BASE));
- out_be32(&intr->main_mask, val);
- } else if (irq < MPC5XXX_PERP_IRQ_BASE) {
- val = in_be32(&sdma->IntMask);
- val |= 1 << (irq - MPC5XXX_SDMA_IRQ_BASE);
- out_be32(&sdma->IntMask, val);
- } else {
- val = in_be32(&intr->per_mask);
- val |= 1 << (31 - (irq - MPC5XXX_PERP_IRQ_BASE));
- out_be32(&intr->per_mask, val);
- }
-}
-
-static void mpc5xxx_ic_enable(unsigned int irq)
-{
- u32 val;
-
- if (irq == MPC5XXX_IRQ0) {
- val = in_be32(&intr->ctrl);
- val |= 1 << 11;
- out_be32(&intr->ctrl, val);
- } else if (irq < MPC5XXX_IRQ1) {
- BUG();
- } else if (irq <= MPC5XXX_IRQ3) {
- val = in_be32(&intr->ctrl);
- val |= 1 << (10 - (irq - MPC5XXX_IRQ1));
- out_be32(&intr->ctrl, val);
- } else if (irq < MPC5XXX_SDMA_IRQ_BASE) {
- val = in_be32(&intr->main_mask);
- val &= ~(1 << (16 - (irq - MPC5XXX_MAIN_IRQ_BASE)));
- out_be32(&intr->main_mask, val);
- } else if (irq < MPC5XXX_PERP_IRQ_BASE) {
- val = in_be32(&sdma->IntMask);
- val &= ~(1 << (irq - MPC5XXX_SDMA_IRQ_BASE));
- out_be32(&sdma->IntMask, val);
- } else {
- val = in_be32(&intr->per_mask);
- val &= ~(1 << (31 - (irq - MPC5XXX_PERP_IRQ_BASE)));
- out_be32(&intr->per_mask, val);
- }
-}
-
-static void mpc5xxx_ic_ack(unsigned int irq)
-{
- u32 val;
-
- /*
- * Only some irqs are reset here, others in interrupting hardware.
- */
-
- switch (irq) {
- case MPC5XXX_IRQ0:
- val = in_be32(&intr->ctrl);
- val |= 0x08000000;
- out_be32(&intr->ctrl, val);
- break;
- case MPC5XXX_CCS_IRQ:
- val = in_be32(&intr->enc_status);
- val |= 0x00000400;
- out_be32(&intr->enc_status, val);
- break;
- case MPC5XXX_IRQ1:
- val = in_be32(&intr->ctrl);
- val |= 0x04000000;
- out_be32(&intr->ctrl, val);
- break;
- case MPC5XXX_IRQ2:
- val = in_be32(&intr->ctrl);
- val |= 0x02000000;
- out_be32(&intr->ctrl, val);
- break;
- case MPC5XXX_IRQ3:
- val = in_be32(&intr->ctrl);
- val |= 0x01000000;
- out_be32(&intr->ctrl, val);
- break;
- default:
- if (irq >= MPC5XXX_SDMA_IRQ_BASE
- && irq < (MPC5XXX_SDMA_IRQ_BASE + MPC5XXX_SDMA_IRQ_NUM)) {
- out_be32(&sdma->IntPend,
- 1 << (irq - MPC5XXX_SDMA_IRQ_BASE));
- }
- break;
- }
-}
-
-static void mpc5xxx_ic_disable_and_ack(unsigned int irq)
-{
- mpc5xxx_ic_disable(irq);
- mpc5xxx_ic_ack(irq);
-}
-
-static void mpc5xxx_ic_end(unsigned int irq)
-{
- mpc5xxx_ic_enable(irq);
-}
-
-void mpc5xxx_init_irq(void)
-{
- u32 intr_ctrl;
-
- /* Remap the necessary zones */
- intr = (struct mpc5xxx_intr *)(MPC5XXX_ICTL);
- sdma = (struct mpc5xxx_sdma *)(MPC5XXX_SDMA);
-
- /* Disable all interrupt sources. */
- out_be32(&sdma->IntPend, 0xffffffff); /* 1 means clear pending */
- out_be32(&sdma->IntMask, 0xffffffff); /* 1 means disabled */
- out_be32(&intr->per_mask, 0x7ffffc00); /* 1 means disabled */
- out_be32(&intr->main_mask, 0x00010fff); /* 1 means disabled */
- intr_ctrl = in_be32(&intr->ctrl);
- intr_ctrl |= 0x0f000000 | /* clear IRQ 0-3 */
- 0x00ff0000 | /* IRQ 0-3 level sensitive low active */
- 0x00001000 | /* MEE master external enable */
- 0x00000000 | /* 0 means disable IRQ 0-3 */
- 0x00000001; /* CEb route critical normally */
- out_be32(&intr->ctrl, intr_ctrl);
-
- /* Zero a bunch of the priority settings. */
- out_be32(&intr->per_pri1, 0);
- out_be32(&intr->per_pri2, 0);
- out_be32(&intr->per_pri3, 0);
- out_be32(&intr->main_pri1, 0);
- out_be32(&intr->main_pri2, 0);
-}
-
-int mpc5xxx_get_irq(struct pt_regs *regs)
-{
- u32 status;
- int irq = -1;
-
- status = in_be32(&intr->enc_status);
-
- if (status & 0x00000400) { /* critical */
- irq = (status >> 8) & 0x3;
- if (irq == 2) /* high priority peripheral */
- goto peripheral;
- irq += MPC5XXX_CRIT_IRQ_BASE;
- } else if (status & 0x00200000) { /* main */
- irq = (status >> 16) & 0x1f;
- if (irq == 4) /* low priority peripheral */
- goto peripheral;
- irq += MPC5XXX_MAIN_IRQ_BASE;
- } else if (status & 0x20000000) { /* peripheral */
- peripheral:
- irq = (status >> 24) & 0x1f;
- if (irq == 0) { /* bestcomm */
- status = in_be32(&sdma->IntPend);
- irq = ffs(status) + MPC5XXX_SDMA_IRQ_BASE - 1;
- } else
- irq += MPC5XXX_PERP_IRQ_BASE;
- }
-
- return irq;
-}
-
-/****************************************************************************/
-
-int interrupt_init_cpu(ulong * decrementer_count)
-{
- *decrementer_count = get_timebase_clock() / 1000;
-
- mpc5xxx_init_irq();
-
- return 0;
-}
-
-/****************************************************************************/
-
-/*
- * Handle external interrupts
- */
-void external_interrupt(struct pt_regs *regs)
-{
- int irq, unmask = 1;
-
- irq = mpc5xxx_get_irq(regs);
-
- mpc5xxx_ic_disable_and_ack(irq);
-
- enable_interrupts();
-
- if (irq_handlers[irq].handler != NULL)
- (*irq_handlers[irq].handler) (irq_handlers[irq].arg);
- else {
- printf("\nBogus External Interrupt IRQ %d\n", irq);
- /*
- * turn off the bogus interrupt, otherwise it
- * might repeat forever
- */
- unmask = 0;
- }
-
- if (unmask)
- mpc5xxx_ic_end(irq);
-}
-
-void timer_interrupt_cpu(struct pt_regs *regs)
-{
- /* nothing to do here */
- return;
-}
-
-/****************************************************************************/
-
-/*
- * Install and free a interrupt handler.
- */
-
-void irq_install_handler(int irq, interrupt_handler_t * handler, void *arg)
-{
- if (irq < 0 || irq >= NR_IRQS) {
- printf("irq_install_handler: bad irq number %d\n", irq);
- return;
- }
-
- if (irq_handlers[irq].handler != NULL)
- printf("irq_install_handler: 0x%08lx replacing 0x%08lx\n",
- (ulong) handler, (ulong) irq_handlers[irq].handler);
-
- irq_handlers[irq].handler = handler;
- irq_handlers[irq].arg = arg;
-
- mpc5xxx_ic_enable(irq);
-}
-
-void irq_free_handler(int irq)
-{
- if (irq < 0 || irq >= NR_IRQS) {
- printf("irq_free_handler: bad irq number %d\n", irq);
- return;
- }
-
- mpc5xxx_ic_disable(irq);
-
- irq_handlers[irq].handler = NULL;
- irq_handlers[irq].arg = NULL;
-}
-
-/****************************************************************************/
-
-#if (CONFIG_COMMANDS & CFG_CMD_IRQ)
-void do_irqinfo(struct command * cmdtp, bd_t * bd, int flag, int argc, char *argv[])
-{
- int irq, re_enable;
- u32 intr_ctrl;
- char *irq_config[] = { "level sensitive, active high",
- "edge sensitive, rising active edge",
- "edge sensitive, falling active edge",
- "level sensitive, active low"
- };
-
- re_enable = disable_interrupts();
-
- intr_ctrl = in_be32(&intr->ctrl);
- printf("Interrupt configuration:\n");
-
- for (irq = 0; irq <= 3; irq++) {
- printf("IRQ%d: %s\n", irq,
- irq_config[(intr_ctrl >> (22 - 2 * irq)) & 0x3]);
- }
-
- puts("\nInterrupt-Information:\n" "Nr Routine Arg Count\n");
-
- for (irq = 0; irq < NR_IRQS; irq++)
- if (irq_handlers[irq].handler != NULL)
- printf("%02d %08lx %08lx %ld\n", irq,
- (ulong) irq_handlers[irq].handler,
- (ulong) irq_handlers[irq].arg,
- irq_handlers[irq].count);
-
- if (re_enable)
- enable_interrupts();
-}
-#endif
diff --git a/arch/ppc/mach-mpc5xxx/start.S b/arch/ppc/mach-mpc5xxx/start.S
index dc53c8a..7a4c16b 100644
--- a/arch/ppc/mach-mpc5xxx/start.S
+++ b/arch/ppc/mach-mpc5xxx/start.S
@@ -140,11 +140,6 @@ _start_of_vectors:
/* Instruction Storage exception. */
STD_EXCEPTION(0x400, InstStorage, UnknownException)
-/* External Interrupt exception. */
-#ifdef CONFIG_USE_IRQ
- STD_EXCEPTION(0x500, ExtInterrupt, external_interrupt)
-#endif
-
/* Alignment exception. */
. = 0x600
Alignment:
@@ -184,11 +179,7 @@ ProgramCheck:
/* I guess we could implement decrementer, and may have
* to someday for timekeeping.
*/
-#ifdef CONFIG_USE_IRQ
- STD_EXCEPTION(0x900, Decrementer, timer_interrupt)
-#else
STD_EXCEPTION(0x900, Decrementer, UnknownException)
-#endif
STD_EXCEPTION(0xa00, Trap_0a, UnknownException)
STD_EXCEPTION(0xb00, Trap_0b, UnknownException)
STD_EXCEPTION(0xc00, SystemCall, UnknownException)
diff --git a/arch/sandbox/os/common.c b/arch/sandbox/os/common.c
index 5074a06..1c5ae5d 100644
--- a/arch/sandbox/os/common.c
+++ b/arch/sandbox/os/common.c
@@ -124,14 +124,6 @@ void __attribute__((noreturn)) reset_cpu(unsigned long addr)
exit(0);
}
-void enable_interrupts(void)
-{
-}
-
-void disable_interrupt(void)
-{
-}
-
int linux_read(int fd, void *buf, size_t count)
{
ssize_t ret;
diff --git a/commands/bootm.c b/commands/bootm.c
index f11138a..731b74d 100644
--- a/commands/bootm.c
+++ b/commands/bootm.c
@@ -331,8 +331,6 @@ static int do_bootm(struct command *cmdtp, int argc, char *argv[])
* recover from any failures any more...
*/
- disable_interrupts();
-
puts ("OK\n");
/* loop through the registered handlers */
diff --git a/drivers/net/macb.c b/drivers/net/macb.c
index c1f7f68..e1cfd85 100644
--- a/drivers/net/macb.c
+++ b/drivers/net/macb.c
@@ -302,18 +302,14 @@ static int macb_phy_read(struct mii_device *mdev, int addr, int reg)
unsigned long netctl;
unsigned long netstat;
unsigned long frame;
- int iflag;
int value;
uint64_t start;
debug("%s\n", __func__);
- iflag = disable_interrupts();
netctl = readl(macb->regs + MACB_NCR);
netctl |= MACB_BIT(MPE);
writel(netctl, macb->regs + MACB_NCR);
- if (iflag)
- enable_interrupts();
frame = (MACB_BF(SOF, 1)
| MACB_BF(RW, 2)
@@ -334,12 +330,9 @@ static int macb_phy_read(struct mii_device *mdev, int addr, int reg)
frame = readl(macb->regs + MACB_MAN);
value = MACB_BFEXT(DATA, frame);
- iflag = disable_interrupts();
netctl = readl(macb->regs + MACB_NCR);
netctl &= ~MACB_BIT(MPE);
writel(netctl, macb->regs + MACB_NCR);
- if (iflag)
- enable_interrupts();
return value;
}
@@ -355,12 +348,9 @@ static int macb_phy_write(struct mii_device *mdev, int addr, int reg, int value)
debug("%s\n", __func__);
- iflag = disable_interrupts();
netctl = readl(macb->regs + MACB_NCR);
netctl |= MACB_BIT(MPE);
writel(netctl, macb->regs + MACB_NCR);
- if (iflag)
- enable_interrupts();
frame = (MACB_BF(SOF, 1)
| MACB_BF(RW, 1)
@@ -374,12 +364,9 @@ static int macb_phy_write(struct mii_device *mdev, int addr, int reg, int value)
netstat = readl(macb->regs + MACB_NSR);
} while (!(netstat & MACB_BIT(IDLE)));
- iflag = disable_interrupts();
netctl = readl(macb->regs + MACB_NCR);
netctl &= ~MACB_BIT(MPE);
writel(netctl, macb->regs + MACB_NCR);
- if (iflag)
- enable_interrupts();
return 0;
}
diff --git a/include/common.h b/include/common.h
index e34bbea..d63ad02 100644
--- a/include/common.h
+++ b/include/common.h
@@ -107,25 +107,6 @@ long get_ram_size (volatile long *, long);
/* $(CPU)/cpu.c */
void __noreturn reset_cpu(unsigned long addr);
-/* $(CPU)/interrupts.c */
-//void timer_interrupt (struct pt_regs *);
-//void external_interrupt (struct pt_regs *);
-void irq_install_handler(int, interrupt_handler_t *, void *);
-void irq_free_handler (int);
-#ifdef CONFIG_USE_IRQ
-void enable_interrupts (void);
-int disable_interrupts (void);
-#else
-static inline void enable_interrupts(void)
-{
-}
-
-static inline int disable_interrupts(void)
-{
- return 0;
-}
-#endif
-
/* lib_$(ARCH)/time.c */
void udelay (unsigned long);
void mdelay (unsigned long);
--
1.7.7.1
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2011-11-28 7:30 [PATCH 1/2] remove irq support fragments Sascha Hauer
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