summaryrefslogtreecommitdiff
path: root/arch/arm/mach-shark/include/mach/entry-macro.S
diff options
context:
space:
mode:
Diffstat (limited to 'arch/arm/mach-shark/include/mach/entry-macro.S')
-rw-r--r--arch/arm/mach-shark/include/mach/entry-macro.S41
1 files changed, 41 insertions, 0 deletions
diff --git a/arch/arm/mach-shark/include/mach/entry-macro.S b/arch/arm/mach-shark/include/mach/entry-macro.S
new file mode 100644
index 000000000000..e2853c0a3333
--- /dev/null
+++ b/arch/arm/mach-shark/include/mach/entry-macro.S
@@ -0,0 +1,41 @@
+/*
+ * arch/arm/mach-shark/include/mach/entry-macro.S
+ *
+ * Low-level IRQ helper macros for Shark platform
+ *
+ * This file is licensed under the terms of the GNU General Public
+ * License version 2. This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ */
+ .macro disable_fiq
+ .endm
+
+ .macro get_irqnr_preamble, base, tmp
+ .endm
+
+ .macro arch_ret_to_user, tmp1, tmp2
+ .endm
+
+ .macro get_irqnr_and_base, irqnr, irqstat, base, tmp
+ mov r4, #0xe0000000
+
+ mov \irqstat, #0x0C
+ strb \irqstat, [r4, #0x20] @outb(0x0C, 0x20) /* Poll command */
+ ldrb \irqnr, [r4, #0x20] @irq = inb(0x20) & 7
+ and \irqstat, \irqnr, #0x80
+ teq \irqstat, #0
+ beq 43f
+ and \irqnr, \irqnr, #7
+ teq \irqnr, #2
+ bne 44f
+43: mov \irqstat, #0x0C
+ strb \irqstat, [r4, #0xa0] @outb(0x0C, 0xA0) /* Poll command */
+ ldrb \irqnr, [r4, #0xa0] @irq = (inb(0xA0) & 7) + 8
+ and \irqstat, \irqnr, #0x80
+ teq \irqstat, #0
+ beq 44f
+ and \irqnr, \irqnr, #7
+ add \irqnr, \irqnr, #8
+44: teq \irqstat, #0
+ .endm
+