xref: /openbmc/linux/arch/arm/mach-imx/hardware.h (revision 579c6f92)
1 /* SPDX-License-Identifier: GPL-2.0-or-later */
2 /*
3  * Copyright 2004-2007, 2014 Freescale Semiconductor, Inc. All Rights Reserved.
4  * Copyright 2008 Juergen Beisert, kernel@pengutronix.de
5  */
6 
7 #ifndef __ASM_ARCH_MXC_HARDWARE_H__
8 #define __ASM_ARCH_MXC_HARDWARE_H__
9 
10 #ifndef __ASSEMBLY__
11 #include <asm/io.h>
12 #include <soc/imx/revision.h>
13 #endif
14 #include <linux/sizes.h>
15 
16 #define addr_in_module(addr, mod) \
17 	((unsigned long)(addr) - mod ## _BASE_ADDR < mod ## _SIZE)
18 
19 #define IMX_IO_P2V_MODULE(addr, module)					\
20 	(((addr) - module ## _BASE_ADDR) < module ## _SIZE ?		\
21 	 (addr) - (module ## _BASE_ADDR) + (module ## _BASE_ADDR_VIRT) : 0)
22 
23 /*
24  * This is rather complicated for humans and ugly to verify, but for a machine
25  * it's OK.  Still more as it is usually only applied to constants.  The upsides
26  * on using this approach are:
27  *
28  *  - same mapping on all i.MX machines
29  *  - works for assembler, too
30  *  - no need to nurture #defines for virtual addresses
31  *
32  * The downside it, it's hard to verify (but I have a script for that).
33  *
34  * Obviously this needs to be injective for each SoC.  In general it maps the
35  * whole address space to [0xf4000000, 0xf5ffffff].  So [0xf6000000,0xfeffffff]
36  * is free for per-machine use (e.g. KZM_ARM11_01 uses 64MiB there).
37  *
38  * It applies the following mappings for the different SoCs:
39  *
40  * mx1:
41  *	IO	0x00200000+0x100000	->	0xf4000000+0x100000
42  * mx21:
43  *	AIPI	0x10000000+0x100000	->	0xf4400000+0x100000
44  *	SAHB1	0x80000000+0x100000	->	0xf5000000+0x100000
45  *	X_MEMC	0xdf000000+0x004000	->	0xf5f00000+0x004000
46  * mx25:
47  *	AIPS1	0x43f00000+0x100000	->	0xf5300000+0x100000
48  *	AIPS2	0x53f00000+0x100000	->	0xf5700000+0x100000
49  *	AVIC	0x68000000+0x100000	->	0xf5800000+0x100000
50  * mx27:
51  *	AIPI	0x10000000+0x100000	->	0xf4400000+0x100000
52  *	SAHB1	0x80000000+0x100000	->	0xf5000000+0x100000
53  *	X_MEMC	0xd8000000+0x100000	->	0xf5c00000+0x100000
54  * mx31:
55  *	AIPS1	0x43f00000+0x100000	->	0xf5300000+0x100000
56  *	AIPS2	0x53f00000+0x100000	->	0xf5700000+0x100000
57  *	AVIC	0x68000000+0x100000	->	0xf5800000+0x100000
58  *	X_MEMC	0xb8000000+0x010000	->	0xf5c00000+0x010000
59  *	SPBA0	0x50000000+0x100000	->	0xf5400000+0x100000
60  * mx35:
61  *	AIPS1	0x43f00000+0x100000	->	0xf5300000+0x100000
62  *	AIPS2	0x53f00000+0x100000	->	0xf5700000+0x100000
63  *	AVIC	0x68000000+0x100000	->	0xf5800000+0x100000
64  *	X_MEMC	0xb8000000+0x010000	->	0xf5c00000+0x010000
65  *	SPBA0	0x50000000+0x100000	->	0xf5400000+0x100000
66  * mx51:
67  *	TZIC	0x0fffc000+0x004000	->	0xf4bfc000+0x004000
68  *	IRAM	0x1ffe0000+0x020000	->	0xf4fe0000+0x020000
69  *	DEBUG	0x60000000+0x100000	->	0xf5000000+0x100000
70  *	SPBA0	0x70000000+0x100000	->	0xf5400000+0x100000
71  *	AIPS1	0x73f00000+0x100000	->	0xf5700000+0x100000
72  *	AIPS2	0x83f00000+0x100000	->	0xf5300000+0x100000
73  * mx53:
74  *	TZIC	0x0fffc000+0x004000	->	0xf4bfc000+0x004000
75  *	DEBUG	0x40000000+0x100000	->	0xf5000000+0x100000
76  *	SPBA0	0x50000000+0x100000	->	0xf5400000+0x100000
77  *	AIPS1	0x53f00000+0x100000	->	0xf5700000+0x100000
78  *	AIPS2	0x63f00000+0x100000	->	0xf5300000+0x100000
79  * mx6q:
80  *	SCU	0x00a00000+0x004000	->	0xf4000000+0x004000
81  *	CCM	0x020c4000+0x004000	->	0xf42c4000+0x004000
82  *	ANATOP	0x020c8000+0x004000	->	0xf42c8000+0x004000
83  *	UART4	0x021f0000+0x004000	->	0xf42f0000+0x004000
84  */
85 #define IMX_IO_P2V(x)	(						\
86 			(((x) & 0x80000000) >> 7) |			\
87 			(0xf4000000 +					\
88 			(((x) & 0x50000000) >> 6) +			\
89 			(((x) & 0x0b000000) >> 4) +			\
90 			(((x) & 0x000fffff))))
91 
92 #define IMX_IO_ADDRESS(x)	IOMEM(IMX_IO_P2V(x))
93 
94 #include "mxc.h"
95 
96 #include "mx3x.h"
97 #include "mx31.h"
98 #include "mx35.h"
99 #include "mx2x.h"
100 #include "mx27.h"
101 
102 #define imx_map_entry(soc, name, _type)	{				\
103 	.virtual = soc ## _IO_P2V(soc ## _ ## name ## _BASE_ADDR),	\
104 	.pfn = __phys_to_pfn(soc ## _ ## name ## _BASE_ADDR),		\
105 	.length = soc ## _ ## name ## _SIZE,				\
106 	.type = _type,							\
107 }
108 
109 #endif /* __ASM_ARCH_MXC_HARDWARE_H__ */
110