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44169075 SS |
1 | /* |
2 | * Common io.c file | |
3 | * This file is created by Russell King <rmk+kernel@arm.linux.org.uk> | |
4 | * | |
5 | * Copyright (C) 2009 Texas Instruments | |
6 | * Added OMAP4 support - Santosh Shilimkar <santosh.shilimkar@ti.com> | |
7 | * | |
8 | * This program is free software; you can redistribute it and/or modify | |
9 | * it under the terms of the GNU General Public License version 2 as | |
10 | * published by the Free Software Foundation. | |
11 | */ | |
690b5a13 RK |
12 | #include <linux/module.h> |
13 | #include <linux/io.h> | |
14 | #include <linux/mm.h> | |
15 | ||
ce491cf8 TL |
16 | #include <plat/omap7xx.h> |
17 | #include <plat/omap1510.h> | |
18 | #include <plat/omap16xx.h> | |
19 | #include <plat/omap24xx.h> | |
20 | #include <plat/omap34xx.h> | |
21 | #include <plat/omap44xx.h> | |
690b5a13 RK |
22 | |
23 | #define BETWEEN(p,st,sz) ((p) >= (st) && (p) < ((st) + (sz))) | |
24 | #define XLATE(p,pst,vst) ((void __iomem *)((p) - (pst) + (vst))) | |
25 | ||
26 | /* | |
27 | * Intercept ioremap() requests for addresses in our fixed mapping regions. | |
28 | */ | |
29 | void __iomem *omap_ioremap(unsigned long p, size_t size, unsigned int type) | |
30 | { | |
31 | #ifdef CONFIG_ARCH_OMAP1 | |
32 | if (cpu_class_is_omap1()) { | |
db326be1 TL |
33 | if (BETWEEN(p, OMAP1_IO_PHYS, OMAP1_IO_SIZE)) |
34 | return XLATE(p, OMAP1_IO_PHYS, OMAP1_IO_VIRT); | |
690b5a13 | 35 | } |
ab49df73 | 36 | if (cpu_is_omap7xx()) { |
b51988db AB |
37 | if (BETWEEN(p, OMAP7XX_DSP_BASE, OMAP7XX_DSP_SIZE)) |
38 | return XLATE(p, OMAP7XX_DSP_BASE, OMAP7XX_DSP_START); | |
690b5a13 | 39 | |
b51988db AB |
40 | if (BETWEEN(p, OMAP7XX_DSPREG_BASE, OMAP7XX_DSPREG_SIZE)) |
41 | return XLATE(p, OMAP7XX_DSPREG_BASE, | |
42 | OMAP7XX_DSPREG_START); | |
690b5a13 RK |
43 | } |
44 | if (cpu_is_omap15xx()) { | |
45 | if (BETWEEN(p, OMAP1510_DSP_BASE, OMAP1510_DSP_SIZE)) | |
46 | return XLATE(p, OMAP1510_DSP_BASE, OMAP1510_DSP_START); | |
47 | ||
48 | if (BETWEEN(p, OMAP1510_DSPREG_BASE, OMAP1510_DSPREG_SIZE)) | |
49 | return XLATE(p, OMAP1510_DSPREG_BASE, | |
50 | OMAP1510_DSPREG_START); | |
51 | } | |
52 | if (cpu_is_omap16xx()) { | |
53 | if (BETWEEN(p, OMAP16XX_DSP_BASE, OMAP16XX_DSP_SIZE)) | |
54 | return XLATE(p, OMAP16XX_DSP_BASE, OMAP16XX_DSP_START); | |
55 | ||
56 | if (BETWEEN(p, OMAP16XX_DSPREG_BASE, OMAP16XX_DSPREG_SIZE)) | |
57 | return XLATE(p, OMAP16XX_DSPREG_BASE, | |
58 | OMAP16XX_DSPREG_START); | |
59 | } | |
60 | #endif | |
61 | #ifdef CONFIG_ARCH_OMAP2 | |
cc26b3b0 | 62 | if (cpu_is_omap24xx()) { |
690b5a13 RK |
63 | if (BETWEEN(p, L3_24XX_PHYS, L3_24XX_SIZE)) |
64 | return XLATE(p, L3_24XX_PHYS, L3_24XX_VIRT); | |
65 | if (BETWEEN(p, L4_24XX_PHYS, L4_24XX_SIZE)) | |
66 | return XLATE(p, L4_24XX_PHYS, L4_24XX_VIRT); | |
cc26b3b0 SMK |
67 | } |
68 | if (cpu_is_omap2420()) { | |
7adb9987 PW |
69 | if (BETWEEN(p, DSP_MEM_2420_PHYS, DSP_MEM_2420_SIZE)) |
70 | return XLATE(p, DSP_MEM_2420_PHYS, DSP_MEM_2420_VIRT); | |
71 | if (BETWEEN(p, DSP_IPI_2420_PHYS, DSP_IPI_2420_SIZE)) | |
72 | return XLATE(p, DSP_IPI_2420_PHYS, DSP_IPI_2420_SIZE); | |
73 | if (BETWEEN(p, DSP_MMU_2420_PHYS, DSP_MMU_2420_SIZE)) | |
74 | return XLATE(p, DSP_MMU_2420_PHYS, DSP_MMU_2420_VIRT); | |
690b5a13 | 75 | } |
690b5a13 RK |
76 | if (cpu_is_omap2430()) { |
77 | if (BETWEEN(p, L4_WK_243X_PHYS, L4_WK_243X_SIZE)) | |
cc26b3b0 | 78 | return XLATE(p, L4_WK_243X_PHYS, L4_WK_243X_VIRT); |
690b5a13 | 79 | if (BETWEEN(p, OMAP243X_GPMC_PHYS, OMAP243X_GPMC_SIZE)) |
cc26b3b0 SMK |
80 | return XLATE(p, OMAP243X_GPMC_PHYS, OMAP243X_GPMC_VIRT); |
81 | if (BETWEEN(p, OMAP243X_SDRC_PHYS, OMAP243X_SDRC_SIZE)) | |
82 | return XLATE(p, OMAP243X_SDRC_PHYS, OMAP243X_SDRC_VIRT); | |
83 | if (BETWEEN(p, OMAP243X_SMS_PHYS, OMAP243X_SMS_SIZE)) | |
84 | return XLATE(p, OMAP243X_SMS_PHYS, OMAP243X_SMS_VIRT); | |
690b5a13 RK |
85 | } |
86 | #endif | |
cc26b3b0 SMK |
87 | #ifdef CONFIG_ARCH_OMAP3 |
88 | if (cpu_is_omap34xx()) { | |
89 | if (BETWEEN(p, L3_34XX_PHYS, L3_34XX_SIZE)) | |
90 | return XLATE(p, L3_34XX_PHYS, L3_34XX_VIRT); | |
91 | if (BETWEEN(p, L4_34XX_PHYS, L4_34XX_SIZE)) | |
92 | return XLATE(p, L4_34XX_PHYS, L4_34XX_VIRT); | |
cc26b3b0 SMK |
93 | if (BETWEEN(p, OMAP34XX_GPMC_PHYS, OMAP34XX_GPMC_SIZE)) |
94 | return XLATE(p, OMAP34XX_GPMC_PHYS, OMAP34XX_GPMC_VIRT); | |
95 | if (BETWEEN(p, OMAP343X_SMS_PHYS, OMAP343X_SMS_SIZE)) | |
96 | return XLATE(p, OMAP343X_SMS_PHYS, OMAP343X_SMS_VIRT); | |
97 | if (BETWEEN(p, OMAP343X_SDRC_PHYS, OMAP343X_SDRC_SIZE)) | |
98 | return XLATE(p, OMAP343X_SDRC_PHYS, OMAP343X_SDRC_VIRT); | |
99 | if (BETWEEN(p, L4_PER_34XX_PHYS, L4_PER_34XX_SIZE)) | |
100 | return XLATE(p, L4_PER_34XX_PHYS, L4_PER_34XX_VIRT); | |
101 | if (BETWEEN(p, L4_EMU_34XX_PHYS, L4_EMU_34XX_SIZE)) | |
102 | return XLATE(p, L4_EMU_34XX_PHYS, L4_EMU_34XX_VIRT); | |
103 | } | |
690b5a13 | 104 | #endif |
44169075 SS |
105 | #ifdef CONFIG_ARCH_OMAP4 |
106 | if (cpu_is_omap44xx()) { | |
107 | if (BETWEEN(p, L3_44XX_PHYS, L3_44XX_SIZE)) | |
108 | return XLATE(p, L3_44XX_PHYS, L3_44XX_VIRT); | |
109 | if (BETWEEN(p, L4_44XX_PHYS, L4_44XX_SIZE)) | |
110 | return XLATE(p, L4_44XX_PHYS, L4_44XX_VIRT); | |
44169075 SS |
111 | if (BETWEEN(p, OMAP44XX_GPMC_PHYS, OMAP44XX_GPMC_SIZE)) |
112 | return XLATE(p, OMAP44XX_GPMC_PHYS, OMAP44XX_GPMC_VIRT); | |
f5d2d659 SS |
113 | if (BETWEEN(p, OMAP44XX_EMIF1_PHYS, OMAP44XX_EMIF1_SIZE)) |
114 | return XLATE(p, OMAP44XX_EMIF1_PHYS, \ | |
115 | OMAP44XX_EMIF1_VIRT); | |
116 | if (BETWEEN(p, OMAP44XX_EMIF2_PHYS, OMAP44XX_EMIF2_SIZE)) | |
117 | return XLATE(p, OMAP44XX_EMIF2_PHYS, \ | |
118 | OMAP44XX_EMIF2_VIRT); | |
119 | if (BETWEEN(p, OMAP44XX_DMM_PHYS, OMAP44XX_DMM_SIZE)) | |
120 | return XLATE(p, OMAP44XX_DMM_PHYS, OMAP44XX_DMM_VIRT); | |
44169075 SS |
121 | if (BETWEEN(p, L4_PER_44XX_PHYS, L4_PER_44XX_SIZE)) |
122 | return XLATE(p, L4_PER_44XX_PHYS, L4_PER_44XX_VIRT); | |
123 | if (BETWEEN(p, L4_EMU_44XX_PHYS, L4_EMU_44XX_SIZE)) | |
124 | return XLATE(p, L4_EMU_44XX_PHYS, L4_EMU_44XX_VIRT); | |
125 | } | |
126 | #endif | |
31aa8fd6 | 127 | return __arm_ioremap_caller(p, size, type, __builtin_return_address(0)); |
690b5a13 RK |
128 | } |
129 | EXPORT_SYMBOL(omap_ioremap); | |
130 | ||
131 | void omap_iounmap(volatile void __iomem *addr) | |
132 | { | |
133 | unsigned long virt = (unsigned long)addr; | |
134 | ||
135 | if (virt >= VMALLOC_START && virt < VMALLOC_END) | |
136 | __iounmap(addr); | |
137 | } | |
138 | EXPORT_SYMBOL(omap_iounmap); | |
94113260 TL |
139 | |
140 | /* | |
141 | * NOTE: Please use ioremap + __raw_read/write where possible instead of these | |
142 | */ | |
143 | ||
144 | u8 omap_readb(u32 pa) | |
145 | { | |
146 | if (cpu_class_is_omap1()) | |
147 | return __raw_readb(OMAP1_IO_ADDRESS(pa)); | |
148 | else | |
233fd64e | 149 | return __raw_readb(OMAP2_L4_IO_ADDRESS(pa)); |
94113260 TL |
150 | } |
151 | EXPORT_SYMBOL(omap_readb); | |
152 | ||
153 | u16 omap_readw(u32 pa) | |
154 | { | |
155 | if (cpu_class_is_omap1()) | |
156 | return __raw_readw(OMAP1_IO_ADDRESS(pa)); | |
157 | else | |
233fd64e | 158 | return __raw_readw(OMAP2_L4_IO_ADDRESS(pa)); |
94113260 TL |
159 | } |
160 | EXPORT_SYMBOL(omap_readw); | |
161 | ||
162 | u32 omap_readl(u32 pa) | |
163 | { | |
164 | if (cpu_class_is_omap1()) | |
165 | return __raw_readl(OMAP1_IO_ADDRESS(pa)); | |
166 | else | |
233fd64e | 167 | return __raw_readl(OMAP2_L4_IO_ADDRESS(pa)); |
94113260 TL |
168 | } |
169 | EXPORT_SYMBOL(omap_readl); | |
170 | ||
171 | void omap_writeb(u8 v, u32 pa) | |
172 | { | |
173 | if (cpu_class_is_omap1()) | |
174 | __raw_writeb(v, OMAP1_IO_ADDRESS(pa)); | |
175 | else | |
233fd64e | 176 | __raw_writeb(v, OMAP2_L4_IO_ADDRESS(pa)); |
94113260 TL |
177 | } |
178 | EXPORT_SYMBOL(omap_writeb); | |
179 | ||
180 | void omap_writew(u16 v, u32 pa) | |
181 | { | |
182 | if (cpu_class_is_omap1()) | |
183 | __raw_writew(v, OMAP1_IO_ADDRESS(pa)); | |
184 | else | |
233fd64e | 185 | __raw_writew(v, OMAP2_L4_IO_ADDRESS(pa)); |
94113260 TL |
186 | } |
187 | EXPORT_SYMBOL(omap_writew); | |
188 | ||
189 | void omap_writel(u32 v, u32 pa) | |
190 | { | |
191 | if (cpu_class_is_omap1()) | |
192 | __raw_writel(v, OMAP1_IO_ADDRESS(pa)); | |
193 | else | |
233fd64e | 194 | __raw_writel(v, OMAP2_L4_IO_ADDRESS(pa)); |
94113260 TL |
195 | } |
196 | EXPORT_SYMBOL(omap_writel); |