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authorManuel Lauss <mano@roarinelk.homelinux.net>2008-12-21 11:26:14 +0300
committerRalf Baechle <ralf@linux-mips.org>2009-01-11 12:57:25 +0300
commit58e75e86cf9af1130b3c628d924e6df0bc72832f (patch)
tree0c3e7511671a74ba5302aa5edbe2695cfbdee9ed /arch/mips/alchemy/pb1200/irqmap.c
parenta86c7f72454c4e855d5d6c80ed9f7f2ac55b001a (diff)
downloadlinux-58e75e86cf9af1130b3c628d924e6df0bc72832f.tar.xz
MIPS: Alchemy: Move development board code to common subdirectory
This should ease sharing of common devboard code. Signed-off-by: Manuel Lauss <mano@roarinelk.homelinux.net> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips/alchemy/pb1200/irqmap.c')
-rw-r--r--arch/mips/alchemy/pb1200/irqmap.c160
1 files changed, 0 insertions, 160 deletions
diff --git a/arch/mips/alchemy/pb1200/irqmap.c b/arch/mips/alchemy/pb1200/irqmap.c
deleted file mode 100644
index 2a505ad8715b..000000000000
--- a/arch/mips/alchemy/pb1200/irqmap.c
+++ /dev/null
@@ -1,160 +0,0 @@
-/*
- * BRIEF MODULE DESCRIPTION
- * Au1xxx irq map table
- *
- * 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/init.h>
-#include <linux/interrupt.h>
-
-#include <asm/mach-au1x00/au1000.h>
-
-#ifdef CONFIG_MIPS_PB1200
-#include <asm/mach-pb1x00/pb1200.h>
-#endif
-
-#ifdef CONFIG_MIPS_DB1200
-#include <asm/mach-db1x00/db1200.h>
-#define PB1200_INT_BEGIN DB1200_INT_BEGIN
-#define PB1200_INT_END DB1200_INT_END
-#endif
-
-struct au1xxx_irqmap __initdata au1xxx_irq_map[] = {
- /* This is external interrupt cascade */
- { AU1000_GPIO_7, INTC_INT_LOW_LEVEL, 0 },
-};
-
-int __initdata au1xxx_nr_irqs = ARRAY_SIZE(au1xxx_irq_map);
-
-/*
- * Support for External interrupts on the Pb1200 Development platform.
- */
-static volatile int pb1200_cascade_en;
-
-irqreturn_t pb1200_cascade_handler(int irq, void *dev_id)
-{
- unsigned short bisr = bcsr->int_status;
- int extirq_nr = 0;
-
- /* Clear all the edge interrupts. This has no effect on level. */
- bcsr->int_status = bisr;
- for ( ; bisr; bisr &= bisr - 1) {
- extirq_nr = PB1200_INT_BEGIN + __ffs(bisr);
- /* Ack and dispatch IRQ */
- do_IRQ(extirq_nr);
- }
-
- return IRQ_RETVAL(1);
-}
-
-inline void pb1200_enable_irq(unsigned int irq_nr)
-{
- bcsr->intset_mask = 1 << (irq_nr - PB1200_INT_BEGIN);
- bcsr->intset = 1 << (irq_nr - PB1200_INT_BEGIN);
-}
-
-inline void pb1200_disable_irq(unsigned int irq_nr)
-{
- bcsr->intclr_mask = 1 << (irq_nr - PB1200_INT_BEGIN);
- bcsr->intclr = 1 << (irq_nr - PB1200_INT_BEGIN);
-}
-
-static unsigned int pb1200_setup_cascade(void)
-{
- return request_irq(AU1000_GPIO_7, &pb1200_cascade_handler,
- 0, "Pb1200 Cascade", &pb1200_cascade_handler);
-}
-
-static unsigned int pb1200_startup_irq(unsigned int irq)
-{
- if (++pb1200_cascade_en == 1) {
- int res;
-
- res = pb1200_setup_cascade();
- if (res)
- return res;
- }
-
- pb1200_enable_irq(irq);
-
- return 0;
-}
-
-static void pb1200_shutdown_irq(unsigned int irq)
-{
- pb1200_disable_irq(irq);
- if (--pb1200_cascade_en == 0)
- free_irq(AU1000_GPIO_7, &pb1200_cascade_handler);
-}
-
-static struct irq_chip external_irq_type = {
-#ifdef CONFIG_MIPS_PB1200
- .name = "Pb1200 Ext",
-#endif
-#ifdef CONFIG_MIPS_DB1200
- .name = "Db1200 Ext",
-#endif
- .startup = pb1200_startup_irq,
- .shutdown = pb1200_shutdown_irq,
- .ack = pb1200_disable_irq,
- .mask = pb1200_disable_irq,
- .mask_ack = pb1200_disable_irq,
- .unmask = pb1200_enable_irq,
-};
-
-void _board_init_irq(void)
-{
- unsigned int irq;
-
-#ifdef CONFIG_MIPS_PB1200
- /* We have a problem with CPLD rev 3. */
- if (((bcsr->whoami & BCSR_WHOAMI_CPLD) >> 4) <= 3) {
- printk(KERN_ERR "WARNING!!!\n");
- printk(KERN_ERR "WARNING!!!\n");
- printk(KERN_ERR "WARNING!!!\n");
- printk(KERN_ERR "WARNING!!!\n");
- printk(KERN_ERR "WARNING!!!\n");
- printk(KERN_ERR "WARNING!!!\n");
- printk(KERN_ERR "Pb1200 must be at CPLD rev 4. Please have Pb1200\n");
- printk(KERN_ERR "updated to latest revision. This software will\n");
- printk(KERN_ERR "not work on anything less than CPLD rev 4.\n");
- printk(KERN_ERR "WARNING!!!\n");
- printk(KERN_ERR "WARNING!!!\n");
- printk(KERN_ERR "WARNING!!!\n");
- printk(KERN_ERR "WARNING!!!\n");
- printk(KERN_ERR "WARNING!!!\n");
- printk(KERN_ERR "WARNING!!!\n");
- panic("Game over. Your score is 0.");
- }
-#endif
-
- for (irq = PB1200_INT_BEGIN; irq <= PB1200_INT_END; irq++) {
- set_irq_chip_and_handler(irq, &external_irq_type,
- handle_level_irq);
- pb1200_disable_irq(irq);
- }
-
- /*
- * GPIO_7 can not be hooked here, so it is hooked upon first
- * request of any source attached to the cascade.
- */
-}