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Brian Swetland30421022007-11-26 04:11:43 -08001/* arch/arm/mach-msm/io.c
2 *
Daniel Walkercf62ffa2010-05-04 15:12:27 -07003 * MSM7K, QSD io support
Brian Swetland30421022007-11-26 04:11:43 -08004 *
5 * Copyright (C) 2007 Google, Inc.
David Brown8c27e6f2011-01-07 10:20:49 -08006 * Copyright (c) 2008-2011, Code Aurora Forum. All rights reserved.
Brian Swetland30421022007-11-26 04:11:43 -08007 * 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 Boydebea60b2013-07-24 13:54:31 -070021#include <linux/bug.h>
Brian Swetland30421022007-11-26 04:11:43 -080022#include <linux/init.h>
Russell Kingfced80c2008-09-06 12:10:45 +010023#include <linux/io.h>
Paul Gortmakerdc280942011-07-31 16:17:29 -040024#include <linux/export.h>
Brian Swetland30421022007-11-26 04:11:43 -080025
Russell Kinga09e64f2008-08-05 16:14:15 +010026#include <mach/hardware.h>
Brian Swetland30421022007-11-26 04:11:43 -080027#include <asm/page.h>
Russell Kinga09e64f2008-08-05 16:14:15 +010028#include <mach/msm_iomap.h>
Brian Swetland30421022007-11-26 04:11:43 -080029#include <asm/mach/map.h>
30
Stephen Boyd85a9f0f2012-09-05 12:28:57 -070031#include "common.h"
32
Rohit Vaswani90eb3852012-09-07 13:05:56 -070033#define MSM_CHIP_DEVICE_TYPE(name, chip, mem_type) { \
Brian Swetlandbcc0f6a2008-09-10 14:00:53 -070034 .virtual = (unsigned long) MSM_##name##_BASE, \
David Brown8c27e6f2011-01-07 10:20:49 -080035 .pfn = __phys_to_pfn(chip##_##name##_PHYS), \
36 .length = chip##_##name##_SIZE, \
Rohit Vaswani90eb3852012-09-07 13:05:56 -070037 .type = mem_type, \
Brian Swetland30421022007-11-26 04:11:43 -080038 }
39
Rohit Vaswani90eb3852012-09-07 13:05:56 -070040#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 Brown8c27e6f2011-01-07 10:20:49 -080044#define MSM_DEVICE(name) MSM_CHIP_DEVICE(name, MSM)
45
Stephen Boyde63770a2012-09-06 19:50:02 -070046#if defined(CONFIG_ARCH_MSM7X00A)
Brian Swetland30421022007-11-26 04:11:43 -080047static struct map_desc msm_io_desc[] __initdata = {
Rohit Vaswani90eb3852012-09-07 13:05:56 -070048 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 Swetland30421022007-11-26 04:11:43 -080054 {
Brian Swetlandbcc0f6a2008-09-10 14:00:53 -070055 .virtual = (unsigned long) MSM_SHARED_RAM_BASE,
Daniel Walkercf62ffa2010-05-04 15:12:27 -070056 .pfn = __phys_to_pfn(MSM_SHARED_RAM_PHYS),
Brian Swetland30421022007-11-26 04:11:43 -080057 .length = MSM_SHARED_RAM_SIZE,
58 .type = MT_DEVICE,
59 },
Stephen Boyd6d079172013-07-24 13:54:28 -070060#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 Swetland30421022007-11-26 04:11:43 -080068};
69
70void __init msm_map_common_io(void)
71{
Stephen Boyd6d079172013-07-24 13:54:28 -070072 size_t size = ARRAY_SIZE(msm_io_desc);
73
Brian Swetland30421022007-11-26 04:11:43 -080074 /* 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 Boyd6d079172013-07-24 13:54:28 -070079#if defined(CONFIG_DEBUG_MSM_UART1) || defined(CONFIG_DEBUG_MSM_UART2) || \
80 defined(CONFIG_DEBUG_MSM_UART3)
Arnd Bergmannd967b012014-03-16 20:57:29 +010081#ifdef CONFIG_MMU
Stephen Boyd6d079172013-07-24 13:54:28 -070082 debug_ll_addr(&msm_io_desc[size - 1].pfn,
83 &msm_io_desc[size - 1].virtual);
Arnd Bergmannd967b012014-03-16 20:57:29 +010084#endif
Stephen Boyd6d079172013-07-24 13:54:28 -070085 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 Swetland30421022007-11-26 04:11:43 -080088}
Daniel Walkercf62ffa2010-05-04 15:12:27 -070089#endif
90
91#ifdef CONFIG_ARCH_QSD8X50
92static struct map_desc qsd8x50_io_desc[] __initdata = {
93 MSM_DEVICE(VIC),
David Brown8c27e6f2011-01-07 10:20:49 -080094 MSM_CHIP_DEVICE(CSR, QSD8X50),
Daniel Walkercf62ffa2010-05-04 15:12:27 -070095 MSM_DEVICE(DMOV),
David Brown03db0722011-05-12 00:54:36 -070096 MSM_CHIP_DEVICE(GPIO1, QSD8X50),
97 MSM_CHIP_DEVICE(GPIO2, QSD8X50),
Daniel Walkercf62ffa2010-05-04 15:12:27 -070098 MSM_DEVICE(CLK_CTL),
99 MSM_DEVICE(SIRC),
100 MSM_DEVICE(SCPLL),
101 MSM_DEVICE(AD5),
102 MSM_DEVICE(MDC),
Daniel Walkercf62ffa2010-05-04 15:12:27 -0700103 {
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
111void __init msm_map_qsd8x50_io(void)
112{
Stephen Boyd6d079172013-07-24 13:54:28 -0700113 debug_ll_io_init();
Daniel Walkercf62ffa2010-05-04 15:12:27 -0700114 iotable_init(qsd8x50_io_desc, ARRAY_SIZE(qsd8x50_io_desc));
115}
116#endif /* CONFIG_ARCH_QSD8X50 */
Brian Swetland30421022007-11-26 04:11:43 -0800117
Daniel Walkerc83b2bf2010-05-04 15:26:13 -0700118#ifdef CONFIG_ARCH_MSM7X30
119static struct map_desc msm7x30_io_desc[] __initdata = {
120 MSM_DEVICE(VIC),
David Brown8c27e6f2011-01-07 10:20:49 -0800121 MSM_CHIP_DEVICE(CSR, MSM7X30),
Daniel Walkerc83b2bf2010-05-04 15:26:13 -0700122 MSM_DEVICE(DMOV),
David Brown03db0722011-05-12 00:54:36 -0700123 MSM_CHIP_DEVICE(GPIO1, MSM7X30),
124 MSM_CHIP_DEVICE(GPIO2, MSM7X30),
Daniel Walkerc83b2bf2010-05-04 15:26:13 -0700125 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 Walkerc83b2bf2010-05-04 15:26:13 -0700133 {
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
141void __init msm_map_msm7x30_io(void)
142{
Stephen Boyd6d079172013-07-24 13:54:28 -0700143 debug_ll_io_init();
Daniel Walkerc83b2bf2010-05-04 15:26:13 -0700144 iotable_init(msm7x30_io_desc, ARRAY_SIZE(msm7x30_io_desc));
145}
146#endif /* CONFIG_ARCH_MSM7X30 */
147
Stephen Boyd0c211c22013-07-24 13:54:27 -0700148#ifdef CONFIG_ARCH_MSM7X00A
Laura Abbott9b971732013-05-16 19:40:22 +0100149void __iomem *__msm_ioremap_caller(phys_addr_t phys_addr, size_t size,
Rob Herringb12e9ba2012-02-13 13:27:24 -0600150 unsigned int mtype, void *caller)
Brian Swetland30421022007-11-26 04:11:43 -0800151{
152 if (mtype == MT_DEVICE) {
153 /* The peripherals in the 88000000 - D0000000 range
Uwe Kleine-Königb5950762010-11-01 15:38:34 -0400154 * are only accessible by type MT_DEVICE_NONSHARED.
Brian Swetland30421022007-11-26 04:11:43 -0800155 * 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 Herringb12e9ba2012-02-13 13:27:24 -0600161 return __arm_ioremap_caller(phys_addr, size, mtype, caller);
Brian Swetland30421022007-11-26 04:11:43 -0800162}
Stephen Boyd0c211c22013-07-24 13:54:27 -0700163#endif