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

[linux-2.6.git] / include / asm-arm / arch-ixp4xx / entry-macro.S

diff --git a/include/asm-arm/arch-ixp4xx/entry-macro.S b/include/asm-arm/arch-ixp4xx/entry-macro.S
new file mode 100644 (file)
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+++ b/include/asm-arm/arch-ixp4xx/entry-macro.S
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+/*
+ * include/asm-arm/arch-ixp4xx/entry-macro.S
+ *
+ * Low-level IRQ helper macros for IXP4xx-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.
+ */
+
+               .macro  disable_fiq
+               .endm
+
+               .macro  get_irqnr_and_base, irqnr, irqstat, base, tmp
+               ldr     \irqstat, =(IXP4XX_INTC_BASE_VIRT+IXP4XX_ICIP_OFFSET)
+               ldr     \irqstat, [\irqstat]            @ get interrupts
+               cmp     \irqstat, #0
+               beq     1001f
+               clz     \irqnr, \irqstat
+               mov     \base, #31
+               subs    \irqnr, \base, \irqnr
+
+1001:
+               /*
+                * IXP465 has an upper IRQ status register
+                */
+#if defined(CONFIG_CPU_IXP46X)
+               bne     1002f
+               ldr     \irqstat, =(IXP4XX_INTC_BASE_VIRT+IXP4XX_ICIP2_OFFSET)
+               ldr     \irqstat, [\irqstat]            @ get upper interrupts
+               mov     \irqnr, #63
+               clz     \irqstat, \irqstat
+               cmp     \irqstat, #32
+               subne   \irqnr, \irqnr, \irqstat
+1002:
+#endif
+               .endm
+
+