Brian Swetland | 3042102 | 2007-11-26 04:11:43 -0800 | [diff] [blame] | 1 | /* arch/arm/mach-msm/io.c |
| 2 | * |
Daniel Walker | cf62ffa | 2010-05-04 15:12:27 -0700 | [diff] [blame] | 3 | * MSM7K, QSD io support |
Brian Swetland | 3042102 | 2007-11-26 04:11:43 -0800 | [diff] [blame] | 4 | * |
| 5 | * Copyright (C) 2007 Google, Inc. |
David Brown | 8c27e6f | 2011-01-07 10:20:49 -0800 | [diff] [blame] | 6 | * Copyright (c) 2008-2011, Code Aurora Forum. All rights reserved. |
Brian Swetland | 3042102 | 2007-11-26 04:11:43 -0800 | [diff] [blame] | 7 | * Author: Brian Swetland <swetland@google.com> |
| 8 | * |
| 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. |
| 12 | * |
| 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. |
| 17 | * |
| 18 | */ |
| 19 | |
| 20 | #include <linux/kernel.h> |
Stephen Boyd | ebea60b | 2013-07-24 13:54:31 -0700 | [diff] [blame] | 21 | #include <linux/bug.h> |
Brian Swetland | 3042102 | 2007-11-26 04:11:43 -0800 | [diff] [blame] | 22 | #include <linux/init.h> |
Russell King | fced80c | 2008-09-06 12:10:45 +0100 | [diff] [blame] | 23 | #include <linux/io.h> |
Paul Gortmaker | dc28094 | 2011-07-31 16:17:29 -0400 | [diff] [blame] | 24 | #include <linux/export.h> |
Brian Swetland | 3042102 | 2007-11-26 04:11:43 -0800 | [diff] [blame] | 25 | |
Russell King | a09e64f | 2008-08-05 16:14:15 +0100 | [diff] [blame] | 26 | #include <mach/hardware.h> |
Brian Swetland | 3042102 | 2007-11-26 04:11:43 -0800 | [diff] [blame] | 27 | #include <asm/page.h> |
Russell King | a09e64f | 2008-08-05 16:14:15 +0100 | [diff] [blame] | 28 | #include <mach/msm_iomap.h> |
Brian Swetland | 3042102 | 2007-11-26 04:11:43 -0800 | [diff] [blame] | 29 | #include <asm/mach/map.h> |
| 30 | |
Stephen Boyd | 85a9f0f | 2012-09-05 12:28:57 -0700 | [diff] [blame] | 31 | #include "common.h" |
| 32 | |
Rohit Vaswani | 90eb385 | 2012-09-07 13:05:56 -0700 | [diff] [blame] | 33 | #define MSM_CHIP_DEVICE_TYPE(name, chip, mem_type) { \ |
Brian Swetland | bcc0f6a | 2008-09-10 14:00:53 -0700 | [diff] [blame] | 34 | .virtual = (unsigned long) MSM_##name##_BASE, \ |
David Brown | 8c27e6f | 2011-01-07 10:20:49 -0800 | [diff] [blame] | 35 | .pfn = __phys_to_pfn(chip##_##name##_PHYS), \ |
| 36 | .length = chip##_##name##_SIZE, \ |
Rohit Vaswani | 90eb385 | 2012-09-07 13:05:56 -0700 | [diff] [blame] | 37 | .type = mem_type, \ |
Brian Swetland | 3042102 | 2007-11-26 04:11:43 -0800 | [diff] [blame] | 38 | } |
| 39 | |
Rohit Vaswani | 90eb385 | 2012-09-07 13:05:56 -0700 | [diff] [blame] | 40 | #define MSM_DEVICE_TYPE(name, mem_type) \ |
| 41 | MSM_CHIP_DEVICE_TYPE(name, MSM, mem_type) |
| 42 | #define MSM_CHIP_DEVICE(name, chip) \ |
| 43 | MSM_CHIP_DEVICE_TYPE(name, chip, MT_DEVICE) |
David Brown | 8c27e6f | 2011-01-07 10:20:49 -0800 | [diff] [blame] | 44 | #define MSM_DEVICE(name) MSM_CHIP_DEVICE(name, MSM) |
| 45 | |
Stephen Boyd | e63770a | 2012-09-06 19:50:02 -0700 | [diff] [blame] | 46 | #if defined(CONFIG_ARCH_MSM7X00A) |
Brian Swetland | 3042102 | 2007-11-26 04:11:43 -0800 | [diff] [blame] | 47 | static struct map_desc msm_io_desc[] __initdata = { |
Rohit Vaswani | 90eb385 | 2012-09-07 13:05:56 -0700 | [diff] [blame] | 48 | MSM_DEVICE_TYPE(VIC, MT_DEVICE_NONSHARED), |
| 49 | MSM_CHIP_DEVICE_TYPE(CSR, MSM7X00, MT_DEVICE_NONSHARED), |
| 50 | MSM_DEVICE_TYPE(DMOV, MT_DEVICE_NONSHARED), |
| 51 | MSM_CHIP_DEVICE_TYPE(GPIO1, MSM7X00, MT_DEVICE_NONSHARED), |
| 52 | MSM_CHIP_DEVICE_TYPE(GPIO2, MSM7X00, MT_DEVICE_NONSHARED), |
| 53 | MSM_DEVICE_TYPE(CLK_CTL, MT_DEVICE_NONSHARED), |
Brian Swetland | 3042102 | 2007-11-26 04:11:43 -0800 | [diff] [blame] | 54 | { |
Brian Swetland | bcc0f6a | 2008-09-10 14:00:53 -0700 | [diff] [blame] | 55 | .virtual = (unsigned long) MSM_SHARED_RAM_BASE, |
Daniel Walker | cf62ffa | 2010-05-04 15:12:27 -0700 | [diff] [blame] | 56 | .pfn = __phys_to_pfn(MSM_SHARED_RAM_PHYS), |
Brian Swetland | 3042102 | 2007-11-26 04:11:43 -0800 | [diff] [blame] | 57 | .length = MSM_SHARED_RAM_SIZE, |
| 58 | .type = MT_DEVICE, |
| 59 | }, |
Stephen Boyd | 6d07917 | 2013-07-24 13:54:28 -0700 | [diff] [blame] | 60 | #if defined(CONFIG_DEBUG_MSM_UART1) || defined(CONFIG_DEBUG_MSM_UART2) || \ |
| 61 | defined(CONFIG_DEBUG_MSM_UART3) |
| 62 | { |
| 63 | /* Must be last: virtual and pfn filled in by debug_ll_addr() */ |
| 64 | .length = SZ_4K, |
| 65 | .type = MT_DEVICE_NONSHARED, |
| 66 | } |
| 67 | #endif |
Brian Swetland | 3042102 | 2007-11-26 04:11:43 -0800 | [diff] [blame] | 68 | }; |
| 69 | |
| 70 | void __init msm_map_common_io(void) |
| 71 | { |
Stephen Boyd | 6d07917 | 2013-07-24 13:54:28 -0700 | [diff] [blame] | 72 | size_t size = ARRAY_SIZE(msm_io_desc); |
| 73 | |
Brian Swetland | 3042102 | 2007-11-26 04:11:43 -0800 | [diff] [blame] | 74 | /* Make sure the peripheral register window is closed, since |
| 75 | * we will use PTE flags (TEX[1]=1,B=0,C=1) to determine which |
| 76 | * pages are peripheral interface or not. |
| 77 | */ |
| 78 | asm("mcr p15, 0, %0, c15, c2, 4" : : "r" (0)); |
Stephen Boyd | 6d07917 | 2013-07-24 13:54:28 -0700 | [diff] [blame] | 79 | #if defined(CONFIG_DEBUG_MSM_UART1) || defined(CONFIG_DEBUG_MSM_UART2) || \ |
| 80 | defined(CONFIG_DEBUG_MSM_UART3) |
Arnd Bergmann | d967b01 | 2014-03-16 20:57:29 +0100 | [diff] [blame] | 81 | #ifdef CONFIG_MMU |
Stephen Boyd | 6d07917 | 2013-07-24 13:54:28 -0700 | [diff] [blame] | 82 | debug_ll_addr(&msm_io_desc[size - 1].pfn, |
| 83 | &msm_io_desc[size - 1].virtual); |
Arnd Bergmann | d967b01 | 2014-03-16 20:57:29 +0100 | [diff] [blame] | 84 | #endif |
Stephen Boyd | 6d07917 | 2013-07-24 13:54:28 -0700 | [diff] [blame] | 85 | msm_io_desc[size - 1].pfn = __phys_to_pfn(msm_io_desc[size - 1].pfn); |
| 86 | #endif |
| 87 | iotable_init(msm_io_desc, size); |
Brian Swetland | 3042102 | 2007-11-26 04:11:43 -0800 | [diff] [blame] | 88 | } |
Daniel Walker | cf62ffa | 2010-05-04 15:12:27 -0700 | [diff] [blame] | 89 | #endif |
| 90 | |
| 91 | #ifdef CONFIG_ARCH_QSD8X50 |
| 92 | static struct map_desc qsd8x50_io_desc[] __initdata = { |
| 93 | MSM_DEVICE(VIC), |
David Brown | 8c27e6f | 2011-01-07 10:20:49 -0800 | [diff] [blame] | 94 | MSM_CHIP_DEVICE(CSR, QSD8X50), |
Daniel Walker | cf62ffa | 2010-05-04 15:12:27 -0700 | [diff] [blame] | 95 | MSM_DEVICE(DMOV), |
David Brown | 03db072 | 2011-05-12 00:54:36 -0700 | [diff] [blame] | 96 | MSM_CHIP_DEVICE(GPIO1, QSD8X50), |
| 97 | MSM_CHIP_DEVICE(GPIO2, QSD8X50), |
Daniel Walker | cf62ffa | 2010-05-04 15:12:27 -0700 | [diff] [blame] | 98 | MSM_DEVICE(CLK_CTL), |
| 99 | MSM_DEVICE(SIRC), |
| 100 | MSM_DEVICE(SCPLL), |
| 101 | MSM_DEVICE(AD5), |
| 102 | MSM_DEVICE(MDC), |
Daniel Walker | cf62ffa | 2010-05-04 15:12:27 -0700 | [diff] [blame] | 103 | { |
| 104 | .virtual = (unsigned long) MSM_SHARED_RAM_BASE, |
| 105 | .pfn = __phys_to_pfn(MSM_SHARED_RAM_PHYS), |
| 106 | .length = MSM_SHARED_RAM_SIZE, |
| 107 | .type = MT_DEVICE, |
| 108 | }, |
| 109 | }; |
| 110 | |
| 111 | void __init msm_map_qsd8x50_io(void) |
| 112 | { |
Stephen Boyd | 6d07917 | 2013-07-24 13:54:28 -0700 | [diff] [blame] | 113 | debug_ll_io_init(); |
Daniel Walker | cf62ffa | 2010-05-04 15:12:27 -0700 | [diff] [blame] | 114 | iotable_init(qsd8x50_io_desc, ARRAY_SIZE(qsd8x50_io_desc)); |
| 115 | } |
| 116 | #endif /* CONFIG_ARCH_QSD8X50 */ |
Brian Swetland | 3042102 | 2007-11-26 04:11:43 -0800 | [diff] [blame] | 117 | |
Daniel Walker | c83b2bf | 2010-05-04 15:26:13 -0700 | [diff] [blame] | 118 | #ifdef CONFIG_ARCH_MSM7X30 |
| 119 | static struct map_desc msm7x30_io_desc[] __initdata = { |
| 120 | MSM_DEVICE(VIC), |
David Brown | 8c27e6f | 2011-01-07 10:20:49 -0800 | [diff] [blame] | 121 | MSM_CHIP_DEVICE(CSR, MSM7X30), |
Daniel Walker | c83b2bf | 2010-05-04 15:26:13 -0700 | [diff] [blame] | 122 | MSM_DEVICE(DMOV), |
David Brown | 03db072 | 2011-05-12 00:54:36 -0700 | [diff] [blame] | 123 | MSM_CHIP_DEVICE(GPIO1, MSM7X30), |
| 124 | MSM_CHIP_DEVICE(GPIO2, MSM7X30), |
Daniel Walker | c83b2bf | 2010-05-04 15:26:13 -0700 | [diff] [blame] | 125 | MSM_DEVICE(CLK_CTL), |
| 126 | MSM_DEVICE(CLK_CTL_SH2), |
| 127 | MSM_DEVICE(AD5), |
| 128 | MSM_DEVICE(MDC), |
| 129 | MSM_DEVICE(ACC), |
| 130 | MSM_DEVICE(SAW), |
| 131 | MSM_DEVICE(GCC), |
| 132 | MSM_DEVICE(TCSR), |
Daniel Walker | c83b2bf | 2010-05-04 15:26:13 -0700 | [diff] [blame] | 133 | { |
| 134 | .virtual = (unsigned long) MSM_SHARED_RAM_BASE, |
| 135 | .pfn = __phys_to_pfn(MSM_SHARED_RAM_PHYS), |
| 136 | .length = MSM_SHARED_RAM_SIZE, |
| 137 | .type = MT_DEVICE, |
| 138 | }, |
| 139 | }; |
| 140 | |
| 141 | void __init msm_map_msm7x30_io(void) |
| 142 | { |
Stephen Boyd | 6d07917 | 2013-07-24 13:54:28 -0700 | [diff] [blame] | 143 | debug_ll_io_init(); |
Daniel Walker | c83b2bf | 2010-05-04 15:26:13 -0700 | [diff] [blame] | 144 | iotable_init(msm7x30_io_desc, ARRAY_SIZE(msm7x30_io_desc)); |
| 145 | } |
| 146 | #endif /* CONFIG_ARCH_MSM7X30 */ |
| 147 | |
Stephen Boyd | 0c211c2 | 2013-07-24 13:54:27 -0700 | [diff] [blame] | 148 | #ifdef CONFIG_ARCH_MSM7X00A |
Laura Abbott | 9b97173 | 2013-05-16 19:40:22 +0100 | [diff] [blame] | 149 | void __iomem *__msm_ioremap_caller(phys_addr_t phys_addr, size_t size, |
Rob Herring | b12e9ba | 2012-02-13 13:27:24 -0600 | [diff] [blame] | 150 | unsigned int mtype, void *caller) |
Brian Swetland | 3042102 | 2007-11-26 04:11:43 -0800 | [diff] [blame] | 151 | { |
| 152 | if (mtype == MT_DEVICE) { |
| 153 | /* The peripherals in the 88000000 - D0000000 range |
Uwe Kleine-König | b595076 | 2010-11-01 15:38:34 -0400 | [diff] [blame] | 154 | * are only accessible by type MT_DEVICE_NONSHARED. |
Brian Swetland | 3042102 | 2007-11-26 04:11:43 -0800 | [diff] [blame] | 155 | * Adjust mtype as necessary to make this "just work." |
| 156 | */ |
| 157 | if ((phys_addr >= 0x88000000) && (phys_addr < 0xD0000000)) |
| 158 | mtype = MT_DEVICE_NONSHARED; |
| 159 | } |
| 160 | |
Rob Herring | b12e9ba | 2012-02-13 13:27:24 -0600 | [diff] [blame] | 161 | return __arm_ioremap_caller(phys_addr, size, mtype, caller); |
Brian Swetland | 3042102 | 2007-11-26 04:11:43 -0800 | [diff] [blame] | 162 | } |
Stephen Boyd | 0c211c2 | 2013-07-24 13:54:27 -0700 | [diff] [blame] | 163 | #endif |