Merge commit 'v2.6.28-rc2' into topic/asoc
[linux-2.6] / arch / arm / plat-omap / io.c
1 #include <linux/module.h>
2 #include <linux/io.h>
3 #include <linux/mm.h>
4
5 #include <mach/omap730.h>
6 #include <mach/omap1510.h>
7 #include <mach/omap16xx.h>
8 #include <mach/omap24xx.h>
9 #include <mach/omap34xx.h>
10
11 #define BETWEEN(p,st,sz)        ((p) >= (st) && (p) < ((st) + (sz)))
12 #define XLATE(p,pst,vst)        ((void __iomem *)((p) - (pst) + (vst)))
13
14 /*
15  * Intercept ioremap() requests for addresses in our fixed mapping regions.
16  */
17 void __iomem *omap_ioremap(unsigned long p, size_t size, unsigned int type)
18 {
19 #ifdef CONFIG_ARCH_OMAP1
20         if (cpu_class_is_omap1()) {
21                 if (BETWEEN(p, IO_PHYS, IO_SIZE))
22                         return XLATE(p, IO_PHYS, IO_VIRT);
23         }
24         if (cpu_is_omap730()) {
25                 if (BETWEEN(p, OMAP730_DSP_BASE, OMAP730_DSP_SIZE))
26                         return XLATE(p, OMAP730_DSP_BASE, OMAP730_DSP_START);
27
28                 if (BETWEEN(p, OMAP730_DSPREG_BASE, OMAP730_DSPREG_SIZE))
29                         return XLATE(p, OMAP730_DSPREG_BASE,
30                                         OMAP730_DSPREG_START);
31         }
32         if (cpu_is_omap15xx()) {
33                 if (BETWEEN(p, OMAP1510_DSP_BASE, OMAP1510_DSP_SIZE))
34                         return XLATE(p, OMAP1510_DSP_BASE, OMAP1510_DSP_START);
35
36                 if (BETWEEN(p, OMAP1510_DSPREG_BASE, OMAP1510_DSPREG_SIZE))
37                         return XLATE(p, OMAP1510_DSPREG_BASE,
38                                         OMAP1510_DSPREG_START);
39         }
40         if (cpu_is_omap16xx()) {
41                 if (BETWEEN(p, OMAP16XX_DSP_BASE, OMAP16XX_DSP_SIZE))
42                         return XLATE(p, OMAP16XX_DSP_BASE, OMAP16XX_DSP_START);
43
44                 if (BETWEEN(p, OMAP16XX_DSPREG_BASE, OMAP16XX_DSPREG_SIZE))
45                         return XLATE(p, OMAP16XX_DSPREG_BASE,
46                                         OMAP16XX_DSPREG_START);
47         }
48 #endif
49 #ifdef CONFIG_ARCH_OMAP2
50         if (cpu_is_omap24xx()) {
51                 if (BETWEEN(p, L3_24XX_PHYS, L3_24XX_SIZE))
52                         return XLATE(p, L3_24XX_PHYS, L3_24XX_VIRT);
53                 if (BETWEEN(p, L4_24XX_PHYS, L4_24XX_SIZE))
54                         return XLATE(p, L4_24XX_PHYS, L4_24XX_VIRT);
55         }
56         if (cpu_is_omap2420()) {
57                 if (BETWEEN(p, DSP_MEM_24XX_PHYS, DSP_MEM_24XX_SIZE))
58                         return XLATE(p, DSP_MEM_24XX_PHYS, DSP_MEM_24XX_VIRT);
59                 if (BETWEEN(p, DSP_IPI_24XX_PHYS, DSP_IPI_24XX_SIZE))
60                         return XLATE(p, DSP_IPI_24XX_PHYS, DSP_IPI_24XX_SIZE);
61                 if (BETWEEN(p, DSP_MMU_24XX_PHYS, DSP_MMU_24XX_SIZE))
62                         return XLATE(p, DSP_MMU_24XX_PHYS, DSP_MMU_24XX_VIRT);
63         }
64         if (cpu_is_omap2430()) {
65                 if (BETWEEN(p, L4_WK_243X_PHYS, L4_WK_243X_SIZE))
66                         return XLATE(p, L4_WK_243X_PHYS, L4_WK_243X_VIRT);
67                 if (BETWEEN(p, OMAP243X_GPMC_PHYS, OMAP243X_GPMC_SIZE))
68                         return XLATE(p, OMAP243X_GPMC_PHYS, OMAP243X_GPMC_VIRT);
69                 if (BETWEEN(p, OMAP243X_SDRC_PHYS, OMAP243X_SDRC_SIZE))
70                         return XLATE(p, OMAP243X_SDRC_PHYS, OMAP243X_SDRC_VIRT);
71                 if (BETWEEN(p, OMAP243X_SMS_PHYS, OMAP243X_SMS_SIZE))
72                         return XLATE(p, OMAP243X_SMS_PHYS, OMAP243X_SMS_VIRT);
73         }
74 #endif
75 #ifdef CONFIG_ARCH_OMAP3
76         if (cpu_is_omap34xx()) {
77                 if (BETWEEN(p, L3_34XX_PHYS, L3_34XX_SIZE))
78                         return XLATE(p, L3_34XX_PHYS, L3_34XX_VIRT);
79                 if (BETWEEN(p, L4_34XX_PHYS, L4_34XX_SIZE))
80                         return XLATE(p, L4_34XX_PHYS, L4_34XX_VIRT);
81                 if (BETWEEN(p, L4_WK_34XX_PHYS, L4_WK_34XX_SIZE))
82                         return XLATE(p, L4_WK_34XX_PHYS, L4_WK_34XX_VIRT);
83                 if (BETWEEN(p, OMAP34XX_GPMC_PHYS, OMAP34XX_GPMC_SIZE))
84                         return XLATE(p, OMAP34XX_GPMC_PHYS, OMAP34XX_GPMC_VIRT);
85                 if (BETWEEN(p, OMAP343X_SMS_PHYS, OMAP343X_SMS_SIZE))
86                         return XLATE(p, OMAP343X_SMS_PHYS, OMAP343X_SMS_VIRT);
87                 if (BETWEEN(p, OMAP343X_SDRC_PHYS, OMAP343X_SDRC_SIZE))
88                         return XLATE(p, OMAP343X_SDRC_PHYS, OMAP343X_SDRC_VIRT);
89                 if (BETWEEN(p, L4_PER_34XX_PHYS, L4_PER_34XX_SIZE))
90                         return XLATE(p, L4_PER_34XX_PHYS, L4_PER_34XX_VIRT);
91                 if (BETWEEN(p, L4_EMU_34XX_PHYS, L4_EMU_34XX_SIZE))
92                         return XLATE(p, L4_EMU_34XX_PHYS, L4_EMU_34XX_VIRT);
93         }
94 #endif
95
96         return __arm_ioremap(p, size, type);
97 }
98 EXPORT_SYMBOL(omap_ioremap);
99
100 void omap_iounmap(volatile void __iomem *addr)
101 {
102         unsigned long virt = (unsigned long)addr;
103
104         if (virt >= VMALLOC_START && virt < VMALLOC_END)
105                 __iounmap(addr);
106 }
107 EXPORT_SYMBOL(omap_iounmap);