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Diffstat (limited to 'arch/mips/lemote/lm2e/irq.c')
-rw-r--r--arch/mips/lemote/lm2e/irq.c143
1 files changed, 0 insertions, 143 deletions
diff --git a/arch/mips/lemote/lm2e/irq.c b/arch/mips/lemote/lm2e/irq.c
deleted file mode 100644
index 1d0a09f3b832..000000000000
--- a/arch/mips/lemote/lm2e/irq.c
+++ /dev/null
@@ -1,143 +0,0 @@
-/*
- * Copyright (C) 2007 Lemote Inc. & Insititute of Computing Technology
- * Author: Fuxin Zhang, zhangfx@lemote.com
- *
- * 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 SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
- * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
- * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
- * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
- * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
- * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- * 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.,
- * 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- */
-#include <linux/delay.h>
-#include <linux/io.h>
-#include <linux/init.h>
-#include <linux/interrupt.h>
-#include <linux/irq.h>
-
-#include <asm/irq_cpu.h>
-#include <asm/i8259.h>
-#include <asm/mipsregs.h>
-#include <asm/mips-boards/bonito64.h>
-
-
-/*
- * the first level int-handler will jump here if it is a bonito irq
- */
-static void bonito_irqdispatch(void)
-{
- u32 int_status;
- int i;
-
- /* workaround the IO dma problem: let cpu looping to allow DMA finish */
- int_status = BONITO_INTISR;
- if (int_status & (1 << 10)) {
- while (int_status & (1 << 10)) {
- udelay(1);
- int_status = BONITO_INTISR;
- }
- }
-
- /* Get pending sources, masked by current enables */
- int_status = BONITO_INTISR & BONITO_INTEN;
-
- if (int_status != 0) {
- i = __ffs(int_status);
- int_status &= ~(1 << i);
- do_IRQ(BONITO_IRQ_BASE + i);
- }
-}
-
-static void i8259_irqdispatch(void)
-{
- int irq;
-
- irq = i8259_irq();
- if (irq >= 0) {
- do_IRQ(irq);
- } else {
- spurious_interrupt();
- }
-
-}
-
-asmlinkage void plat_irq_dispatch(void)
-{
- unsigned int pending = read_c0_cause() & read_c0_status() & ST0_IM;
-
- if (pending & CAUSEF_IP7) {
- do_IRQ(MIPS_CPU_IRQ_BASE + 7);
- } else if (pending & CAUSEF_IP5) {
- i8259_irqdispatch();
- } else if (pending & CAUSEF_IP2) {
- bonito_irqdispatch();
- } else {
- spurious_interrupt();
- }
-}
-
-static struct irqaction cascade_irqaction = {
- .handler = no_action,
- .name = "cascade",
-};
-
-void __init arch_init_irq(void)
-{
- extern void bonito_irq_init(void);
-
- /*
- * Clear all of the interrupts while we change the able around a bit.
- * int-handler is not on bootstrap
- */
- clear_c0_status(ST0_IM | ST0_BEV);
- local_irq_disable();
-
- /* most bonito irq should be level triggered */
- BONITO_INTEDGE = BONITO_ICU_SYSTEMERR | BONITO_ICU_MASTERERR |
- BONITO_ICU_RETRYERR | BONITO_ICU_MBOXES;
- BONITO_INTSTEER = 0;
-
- /*
- * Mask out all interrupt by writing "1" to all bit position in
- * the interrupt reset reg.
- */
- BONITO_INTENCLR = ~0;
-
- /* init all controller
- * 0-15 ------> i8259 interrupt
- * 16-23 ------> mips cpu interrupt
- * 32-63 ------> bonito irq
- */
-
- /* Sets the first-level interrupt dispatcher. */
- mips_cpu_irq_init();
- init_i8259_irqs();
- bonito_irq_init();
-
- /*
- printk("GPIODATA=%x, GPIOIE=%x\n", BONITO_GPIODATA, BONITO_GPIOIE);
- printk("INTEN=%x, INTSET=%x, INTCLR=%x, INTISR=%x\n",
- BONITO_INTEN, BONITO_INTENSET,
- BONITO_INTENCLR, BONITO_INTISR);
- */
-
- /* bonito irq at IP2 */
- setup_irq(MIPS_CPU_IRQ_BASE + 2, &cascade_irqaction);
- /* 8259 irq at IP5 */
- setup_irq(MIPS_CPU_IRQ_BASE + 5, &cascade_irqaction);
-
-}