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 */
omap_ioremap(unsigned long p,size_t size,unsigned int type)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
omap_iounmap(volatile void __iomem * addr)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);
108