1 /* arch/arm/mach-msm/io.c
3 * MSM7K, QSD io support
5 * Copyright (C) 2007 Google, Inc.
6 * Copyright (c) 2008-2011, 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>
23 #include <linux/export.h>
25 #include <mach/hardware.h>
27 #include <mach/msm_iomap.h>
28 #include <asm/mach/map.h>
30 #include <mach/board.h>
32 #define MSM_CHIP_DEVICE(name, chip) { \
33 .virtual = (unsigned long) MSM_##name##_BASE, \
34 .pfn = __phys_to_pfn(chip##_##name##_PHYS), \
35 .length = chip##_##name##_SIZE, \
36 .type = MT_DEVICE_NONSHARED, \
39 #define MSM_DEVICE(name) MSM_CHIP_DEVICE(name, MSM)
41 #if defined(CONFIG_ARCH_MSM7X00A) || defined(CONFIG_ARCH_MSM7X27) \
42 || defined(CONFIG_ARCH_MSM7X25)
43 static struct map_desc msm_io_desc[] __initdata = {
45 MSM_CHIP_DEVICE(CSR, MSM7X00),
46 MSM_CHIP_DEVICE(GPIO1, MSM7X00),
47 MSM_CHIP_DEVICE(GPIO2, MSM7X00),
49 #ifdef CONFIG_MSM_DEBUG_UART
50 MSM_DEVICE(DEBUG_UART),
52 #ifdef CONFIG_ARCH_MSM7X30
56 .virtual = (unsigned long) MSM_SHARED_RAM_BASE,
57 .pfn = __phys_to_pfn(MSM_SHARED_RAM_PHYS),
58 .length = MSM_SHARED_RAM_SIZE,
63 void __init msm_map_common_io(void)
65 /* Make sure the peripheral register window is closed, since
66 * we will use PTE flags (TEX[1]=1,B=0,C=1) to determine which
67 * pages are peripheral interface or not.
69 asm("mcr p15, 0, %0, c15, c2, 4" : : "r" (0));
70 iotable_init(msm_io_desc, ARRAY_SIZE(msm_io_desc));
74 #ifdef CONFIG_ARCH_QSD8X50
75 static struct map_desc qsd8x50_io_desc[] __initdata = {
77 MSM_CHIP_DEVICE(CSR, QSD8X50),
78 MSM_CHIP_DEVICE(GPIO1, QSD8X50),
79 MSM_CHIP_DEVICE(GPIO2, QSD8X50),
85 #ifdef CONFIG_MSM_DEBUG_UART
86 MSM_DEVICE(DEBUG_UART),
89 .virtual = (unsigned long) MSM_SHARED_RAM_BASE,
90 .pfn = __phys_to_pfn(MSM_SHARED_RAM_PHYS),
91 .length = MSM_SHARED_RAM_SIZE,
96 void __init msm_map_qsd8x50_io(void)
98 iotable_init(qsd8x50_io_desc, ARRAY_SIZE(qsd8x50_io_desc));
100 #endif /* CONFIG_ARCH_QSD8X50 */
102 #ifdef CONFIG_ARCH_MSM8X60
103 static struct map_desc msm8x60_io_desc[] __initdata = {
104 MSM_CHIP_DEVICE(QGIC_DIST, MSM8X60),
105 MSM_CHIP_DEVICE(QGIC_CPU, MSM8X60),
106 MSM_CHIP_DEVICE(TMR, MSM8X60),
107 MSM_CHIP_DEVICE(TMR0, MSM8X60),
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_MSM8960
119 static struct map_desc msm8960_io_desc[] __initdata = {
120 MSM_CHIP_DEVICE(QGIC_DIST, MSM8960),
121 MSM_CHIP_DEVICE(QGIC_CPU, MSM8960),
122 MSM_CHIP_DEVICE(TMR, MSM8960),
123 MSM_CHIP_DEVICE(TMR0, MSM8960),
126 void __init msm_map_msm8960_io(void)
128 iotable_init(msm8960_io_desc, ARRAY_SIZE(msm8960_io_desc));
130 #endif /* CONFIG_ARCH_MSM8960 */
132 #ifdef CONFIG_ARCH_MSM7X30
133 static struct map_desc msm7x30_io_desc[] __initdata = {
135 MSM_CHIP_DEVICE(CSR, MSM7X30),
136 MSM_CHIP_DEVICE(GPIO1, MSM7X30),
137 MSM_CHIP_DEVICE(GPIO2, MSM7X30),
139 MSM_DEVICE(CLK_CTL_SH2),
146 #ifdef CONFIG_MSM_DEBUG_UART
147 MSM_DEVICE(DEBUG_UART),
150 .virtual = (unsigned long) MSM_SHARED_RAM_BASE,
151 .pfn = __phys_to_pfn(MSM_SHARED_RAM_PHYS),
152 .length = MSM_SHARED_RAM_SIZE,
157 void __init msm_map_msm7x30_io(void)
159 iotable_init(msm7x30_io_desc, ARRAY_SIZE(msm7x30_io_desc));
161 #endif /* CONFIG_ARCH_MSM7X30 */
164 __msm_ioremap(unsigned long phys_addr, size_t size, unsigned int mtype)
166 if (mtype == MT_DEVICE) {
167 /* The peripherals in the 88000000 - D0000000 range
168 * are only accessible by type MT_DEVICE_NONSHARED.
169 * Adjust mtype as necessary to make this "just work."
171 if ((phys_addr >= 0x88000000) && (phys_addr < 0xD0000000))
172 mtype = MT_DEVICE_NONSHARED;
175 return __arm_ioremap_caller(phys_addr, size, mtype,
176 __builtin_return_address(0));
178 EXPORT_SYMBOL(__msm_ioremap);