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1 /* arch/arm/mach-msm/io.c
3 * MSM7K, QSD io support
5 * Copyright (C) 2007 Google, Inc.
6 * Copyright (c) 2008-2010, Code Aurora Forum. All rights reserved.
7 * Author: Brian Swetland <swetland@google.com>
9 * This software is licensed under the terms of the GNU General Public
10 * License version 2, as published by the Free Software Foundation, and
11 * may be copied, distributed, and modified under those terms.
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
20 #include <linux/kernel.h>
21 #include <linux/init.h>
24 #include <mach/hardware.h>
26 #include <mach/msm_iomap.h>
27 #include <asm/mach/map.h>
29 #include <mach/board.h>
31 #define MSM_DEVICE(name) { \
32 .virtual = (unsigned long) MSM_##name##_BASE, \
33 .pfn = __phys_to_pfn(MSM_##name##_PHYS), \
34 .length = MSM_##name##_SIZE, \
35 .type = MT_DEVICE_NONSHARED, \
38 #if defined(CONFIG_ARCH_MSM7X00A) || defined(CONFIG_ARCH_MSM7X27) \
39 || defined(CONFIG_ARCH_MSM7X25)
40 static struct map_desc msm_io_desc
[] __initdata
= {
48 #ifdef CONFIG_MSM_DEBUG_UART
49 MSM_DEVICE(DEBUG_UART
),
51 #ifdef CONFIG_ARCH_MSM7X30
55 .virtual = (unsigned long) MSM_SHARED_RAM_BASE
,
56 .pfn
= __phys_to_pfn(MSM_SHARED_RAM_PHYS
),
57 .length
= MSM_SHARED_RAM_SIZE
,
62 void __init
msm_map_common_io(void)
64 /* Make sure the peripheral register window is closed, since
65 * we will use PTE flags (TEX[1]=1,B=0,C=1) to determine which
66 * pages are peripheral interface or not.
68 asm("mcr p15, 0, %0, c15, c2, 4" : : "r" (0));
69 iotable_init(msm_io_desc
, ARRAY_SIZE(msm_io_desc
));
73 #ifdef CONFIG_ARCH_QSD8X50
74 static struct map_desc qsd8x50_io_desc
[] __initdata
= {
86 #ifdef CONFIG_MSM_DEBUG_UART
87 MSM_DEVICE(DEBUG_UART
),
90 .virtual = (unsigned long) MSM_SHARED_RAM_BASE
,
91 .pfn
= __phys_to_pfn(MSM_SHARED_RAM_PHYS
),
92 .length
= MSM_SHARED_RAM_SIZE
,
97 void __init
msm_map_qsd8x50_io(void)
99 iotable_init(qsd8x50_io_desc
, ARRAY_SIZE(qsd8x50_io_desc
));
101 #endif /* CONFIG_ARCH_QSD8X50 */
103 #ifdef CONFIG_ARCH_MSM8X60
104 static struct map_desc msm8x60_io_desc
[] __initdata
= {
105 MSM_DEVICE(QGIC_DIST
),
106 MSM_DEVICE(QGIC_CPU
),
112 void __init
msm_map_msm8x60_io(void)
114 iotable_init(msm8x60_io_desc
, ARRAY_SIZE(msm8x60_io_desc
));
116 #endif /* CONFIG_ARCH_MSM8X60 */
118 #ifdef CONFIG_ARCH_MSM7X30
119 static struct map_desc msm7x30_io_desc
[] __initdata
= {
127 MSM_DEVICE(CLK_CTL_SH2
),
134 #ifdef CONFIG_MSM_DEBUG_UART
135 MSM_DEVICE(DEBUG_UART
),
138 .virtual = (unsigned long) MSM_SHARED_RAM_BASE
,
139 .pfn
= __phys_to_pfn(MSM_SHARED_RAM_PHYS
),
140 .length
= MSM_SHARED_RAM_SIZE
,
145 void __init
msm_map_msm7x30_io(void)
147 iotable_init(msm7x30_io_desc
, ARRAY_SIZE(msm7x30_io_desc
));
149 #endif /* CONFIG_ARCH_MSM7X30 */
152 __msm_ioremap(unsigned long phys_addr
, size_t size
, unsigned int mtype
)
154 if (mtype
== MT_DEVICE
) {
155 /* The peripherals in the 88000000 - D0000000 range
156 * are only accessible by type MT_DEVICE_NONSHARED.
157 * Adjust mtype as necessary to make this "just work."
159 if ((phys_addr
>= 0x88000000) && (phys_addr
< 0xD0000000))
160 mtype
= MT_DEVICE_NONSHARED
;
163 return __arm_ioremap_caller(phys_addr
, size
, mtype
,
164 __builtin_return_address(0));