Merge commit 'gcl/next' into next
[linux-2.6] / arch / arm / plat-omap / include / mach / entry-macro.S
1 /*
2  * arch/arm/plat-omap/include/mach/entry-macro.S
3  *
4  * Low-level IRQ helper macros for OMAP-based platforms
5  *
6  * This file is licensed under  the terms of the GNU General Public
7  * License version 2. This program is licensed "as is" without any
8  * warranty of any kind, whether express or implied.
9  */
10 #include <mach/hardware.h>
11 #include <mach/io.h>
12 #include <mach/irqs.h>
13
14 #if defined(CONFIG_ARCH_OMAP1)
15
16 #if defined(CONFIG_ARCH_OMAP730) && \
17         (defined(CONFIG_ARCH_OMAP15XX) || defined(CONFIG_ARCH_OMAP16XX))
18 #error "FIXME: OMAP730 doesn't support multiple-OMAP"
19 #elif defined(CONFIG_ARCH_OMAP730)
20 #define INT_IH2_IRQ             INT_730_IH2_IRQ
21 #elif defined(CONFIG_ARCH_OMAP15XX)
22 #define INT_IH2_IRQ             INT_1510_IH2_IRQ
23 #elif defined(CONFIG_ARCH_OMAP16XX)
24 #define INT_IH2_IRQ             INT_1610_IH2_IRQ
25 #else
26 #warning "IH2 IRQ defaulted"
27 #define INT_IH2_IRQ             INT_1510_IH2_IRQ
28 #endif
29
30                 .macro  disable_fiq
31                 .endm
32
33                 .macro  get_irqnr_preamble, base, tmp
34                 .endm
35
36                 .macro  arch_ret_to_user, tmp1, tmp2
37                 .endm
38
39                 .macro  get_irqnr_and_base, irqnr, irqstat, base, tmp
40                 ldr     \base, =IO_ADDRESS(OMAP_IH1_BASE)
41                 ldr     \irqnr, [\base, #IRQ_ITR_REG_OFFSET]
42                 ldr     \tmp, [\base, #IRQ_MIR_REG_OFFSET]
43                 mov     \irqstat, #0xffffffff
44                 bic     \tmp, \irqstat, \tmp
45                 tst     \irqnr, \tmp
46                 beq     1510f
47
48                 ldr     \irqnr, [\base, #IRQ_SIR_FIQ_REG_OFFSET]
49                 cmp     \irqnr, #0
50                 ldreq   \irqnr, [\base, #IRQ_SIR_IRQ_REG_OFFSET]
51                 cmpeq   \irqnr, #INT_IH2_IRQ
52                 ldreq   \base, =IO_ADDRESS(OMAP_IH2_BASE)
53                 ldreq   \irqnr, [\base, #IRQ_SIR_IRQ_REG_OFFSET]
54                 addeqs  \irqnr, \irqnr, #32
55 1510:
56                 .endm
57
58 #endif
59 #if defined(CONFIG_ARCH_OMAP24XX) || defined(CONFIG_ARCH_OMAP34XX)
60
61 #if defined(CONFIG_ARCH_OMAP24XX)
62 #include <mach/omap24xx.h>
63 #endif
64 #if defined(CONFIG_ARCH_OMAP34XX)
65 #include <mach/omap34xx.h>
66 #endif
67
68 #define INTCPS_SIR_IRQ_OFFSET   0x0040          /* Active interrupt offset */
69 #define ACTIVEIRQ_MASK          0x7f            /* Active interrupt bits */
70
71                 .macro  disable_fiq
72                 .endm
73
74                 .macro  get_irqnr_preamble, base, tmp
75                 .endm
76
77                 .macro  arch_ret_to_user, tmp1, tmp2
78                 .endm
79
80                 .macro  get_irqnr_and_base, irqnr, irqstat, base, tmp
81                 ldr     \base, =OMAP2_VA_IC_BASE
82                 ldr     \irqnr, [\base, #0x98] /* IRQ pending reg 1 */
83                 cmp     \irqnr, #0x0
84                 bne     2222f
85                 ldr     \irqnr, [\base, #0xb8] /* IRQ pending reg 2 */
86                 cmp     \irqnr, #0x0
87                 bne     2222f
88                 ldr     \irqnr, [\base, #0xd8] /* IRQ pending reg 3 */
89                 cmp     \irqnr, #0x0
90 2222:
91                 ldrne   \irqnr, [\base, #INTCPS_SIR_IRQ_OFFSET]
92                 and     \irqnr, \irqnr, #ACTIVEIRQ_MASK /* Clear spurious bits */
93
94                 .endm
95
96                 .macro  irq_prio_table
97                 .endm
98
99 #endif