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)
42 static struct map_desc msm_io_desc[] __initdata = {
44 MSM_CHIP_DEVICE(CSR, MSM7X00),
46 MSM_CHIP_DEVICE(GPIO1, MSM7X00),
47 MSM_CHIP_DEVICE(GPIO2, MSM7X00),
49 #if defined(CONFIG_DEBUG_MSM_UART1) || defined(CONFIG_DEBUG_MSM_UART2) || \
50 defined(CONFIG_DEBUG_MSM_UART3)
51 MSM_DEVICE(DEBUG_UART),
53 #ifdef CONFIG_ARCH_MSM7X30
57 .virtual = (unsigned long) MSM_SHARED_RAM_BASE,
58 .pfn = __phys_to_pfn(MSM_SHARED_RAM_PHYS),
59 .length = MSM_SHARED_RAM_SIZE,
64 void __init msm_map_common_io(void)
66 /* Make sure the peripheral register window is closed, since
67 * we will use PTE flags (TEX[1]=1,B=0,C=1) to determine which
68 * pages are peripheral interface or not.
70 asm("mcr p15, 0, %0, c15, c2, 4" : : "r" (0));
71 iotable_init(msm_io_desc, ARRAY_SIZE(msm_io_desc));
75 #ifdef CONFIG_ARCH_QSD8X50
76 static struct map_desc qsd8x50_io_desc[] __initdata = {
78 MSM_CHIP_DEVICE(CSR, QSD8X50),
80 MSM_CHIP_DEVICE(GPIO1, QSD8X50),
81 MSM_CHIP_DEVICE(GPIO2, QSD8X50),
87 #if defined(CONFIG_DEBUG_MSM_UART1) || defined(CONFIG_DEBUG_MSM_UART2) || \
88 defined(CONFIG_DEBUG_MSM_UART3)
89 MSM_DEVICE(DEBUG_UART),
92 .virtual = (unsigned long) MSM_SHARED_RAM_BASE,
93 .pfn = __phys_to_pfn(MSM_SHARED_RAM_PHYS),
94 .length = MSM_SHARED_RAM_SIZE,
99 void __init msm_map_qsd8x50_io(void)
101 iotable_init(qsd8x50_io_desc, ARRAY_SIZE(qsd8x50_io_desc));
103 #endif /* CONFIG_ARCH_QSD8X50 */
105 #ifdef CONFIG_ARCH_MSM8X60
106 static struct map_desc msm8x60_io_desc[] __initdata = {
107 MSM_CHIP_DEVICE(QGIC_DIST, MSM8X60),
108 MSM_CHIP_DEVICE(QGIC_CPU, MSM8X60),
109 MSM_CHIP_DEVICE(TMR, MSM8X60),
110 MSM_CHIP_DEVICE(TMR0, MSM8X60),
113 #ifdef CONFIG_DEBUG_MSM8660_UART
114 MSM_DEVICE(DEBUG_UART),
118 void __init msm_map_msm8x60_io(void)
120 iotable_init(msm8x60_io_desc, ARRAY_SIZE(msm8x60_io_desc));
122 #endif /* CONFIG_ARCH_MSM8X60 */
124 #ifdef CONFIG_ARCH_MSM8960
125 static struct map_desc msm8960_io_desc[] __initdata = {
126 MSM_CHIP_DEVICE(QGIC_DIST, MSM8960),
127 MSM_CHIP_DEVICE(QGIC_CPU, MSM8960),
128 MSM_CHIP_DEVICE(TMR, MSM8960),
129 MSM_CHIP_DEVICE(TMR0, MSM8960),
130 #ifdef CONFIG_DEBUG_MSM8960_UART
131 MSM_DEVICE(DEBUG_UART),
135 void __init msm_map_msm8960_io(void)
137 iotable_init(msm8960_io_desc, ARRAY_SIZE(msm8960_io_desc));
139 #endif /* CONFIG_ARCH_MSM8960 */
141 #ifdef CONFIG_ARCH_MSM7X30
142 static struct map_desc msm7x30_io_desc[] __initdata = {
144 MSM_CHIP_DEVICE(CSR, MSM7X30),
146 MSM_CHIP_DEVICE(GPIO1, MSM7X30),
147 MSM_CHIP_DEVICE(GPIO2, MSM7X30),
149 MSM_DEVICE(CLK_CTL_SH2),
156 #if defined(CONFIG_DEBUG_MSM_UART1) || defined(CONFIG_DEBUG_MSM_UART2) || \
157 defined(CONFIG_DEBUG_MSM_UART3)
158 MSM_DEVICE(DEBUG_UART),
161 .virtual = (unsigned long) MSM_SHARED_RAM_BASE,
162 .pfn = __phys_to_pfn(MSM_SHARED_RAM_PHYS),
163 .length = MSM_SHARED_RAM_SIZE,
168 void __init msm_map_msm7x30_io(void)
170 iotable_init(msm7x30_io_desc, ARRAY_SIZE(msm7x30_io_desc));
172 #endif /* CONFIG_ARCH_MSM7X30 */
174 void __iomem *__msm_ioremap_caller(unsigned long phys_addr, size_t size,
175 unsigned int mtype, void *caller)
177 if (mtype == MT_DEVICE) {
178 /* The peripherals in the 88000000 - D0000000 range
179 * are only accessible by type MT_DEVICE_NONSHARED.
180 * Adjust mtype as necessary to make this "just work."
182 if ((phys_addr >= 0x88000000) && (phys_addr < 0xD0000000))
183 mtype = MT_DEVICE_NONSHARED;
186 return __arm_ioremap_caller(phys_addr, size, mtype, caller);