This commit was manufactured by cvs2svn to create branch 'vserver'.

[linux-2.6.git] / include / asm-arm / arch-iop3xx / entry-macro.S

diff --git a/include/asm-arm/arch-iop3xx/entry-macro.S b/include/asm-arm/arch-iop3xx/entry-macro.S
new file mode 100644 (file)
index 0000000..e2ce7f5
--- /dev/null
+++ b/include/asm-arm/arch-iop3xx/entry-macro.S
@@ -0,0 +1,56 @@
+/*
+ * include/asm-arm/arch-iop3xx/entry-macro.S
+ *
+ * Low-level IRQ helper macros for IOP3xx-based platforms
+ *
+ * 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.
+ */
+
+#if defined(CONFIG_ARCH_IOP321)
+               .macro  disable_fiq
+               .endm
+
+               /*
+                * Note: only deal with normal interrupts, not FIQ
+                */
+               .macro  get_irqnr_and_base, irqnr, irqstat, base, tmp
+               mov     \irqnr, #0
+               mrc     p6, 0, \irqstat, c8, c0, 0      @ Read IINTSRC
+               cmp     \irqstat, #0
+               beq     1001f
+               clz     \irqnr, \irqstat
+               mov     \base, #31
+               subs    \irqnr,\base,\irqnr
+               add     \irqnr,\irqnr,#IRQ_IOP321_DMA0_EOT
+1001:
+               .endm
+
+#elif defined(CONFIG_ARCH_IOP331)
+               .macro  disable_fiq
+               .endm
+
+               /*
+                * Note: only deal with normal interrupts, not FIQ
+                */
+               .macro  get_irqnr_and_base, irqnr, irqstat, base, tmp
+               mov     \irqnr, #0
+               mrc     p6, 0, \irqstat, c4, c0, 0      @ Read IINTSRC0
+               cmp     \irqstat, #0
+               bne     1002f
+               mrc     p6, 0, \irqstat, c5, c0, 0      @ Read IINTSRC1
+               cmp     \irqstat, #0
+               beq     1001f
+               clz     \irqnr, \irqstat
+               rsbs    \irqnr,\irqnr,#31   @ recommend by RMK
+               add     \irqnr,\irqnr,#IRQ_IOP331_XINT8
+               b       1001f
+1002:  clz     \irqnr, \irqstat
+               rsbs    \irqnr,\irqnr,#31   @ recommend by RMK
+               add     \irqnr,\irqnr,#IRQ_IOP331_DMA0_EOT
+1001:
+               .endm
+
+#endif
+