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d941caa2 MG |
1 | /* |
2 | * linux/arch/arm/mach-ep93xx/micro9.c | |
3 | * | |
4 | * Copyright (C) 2006 Contec Steuerungstechnik & Automation GmbH | |
94150095 HF |
5 | * Manfred Gruber <m.gruber@tirol.com> |
6 | * Copyright (C) 2009 Contec Steuerungstechnik & Automation GmbH | |
7 | * Hubert Feurstein <hubert.feurstein@contec.at> | |
d941caa2 MG |
8 | * |
9 | * This program is free software; you can redistribute it and/or modify | |
10 | * it under the terms of the GNU General Public License version 2 as | |
11 | * published by the Free Software Foundation. | |
12 | */ | |
13 | ||
d941caa2 | 14 | #include <linux/kernel.h> |
583ddafe | 15 | #include <linux/init.h> |
d941caa2 | 16 | #include <linux/platform_device.h> |
d525753b | 17 | #include <linux/io.h> |
d941caa2 | 18 | |
a09e64fb | 19 | #include <mach/hardware.h> |
d941caa2 | 20 | |
d941caa2 | 21 | #include <asm/mach-types.h> |
583ddafe HS |
22 | #include <asm/mach/arch.h> |
23 | ||
d941caa2 | 24 | |
14636005 HF |
25 | /************************************************************************* |
26 | * Micro9 NOR Flash | |
27 | * | |
28 | * Micro9-High has up to 64MB of 32-bit flash on CS1 | |
29 | * Micro9-Mid has up to 64MB of either 32-bit or 16-bit flash on CS1 | |
3ad2f3fb | 30 | * Micro9-Lite uses a separate MTD map driver for flash support |
7232344d | 31 | * Micro9-Slim has up to 64MB of either 32-bit or 16-bit flash on CS1 |
14636005 | 32 | *************************************************************************/ |
14636005 | 33 | static unsigned int __init micro9_detect_bootwidth(void) |
d941caa2 | 34 | { |
14636005 HF |
35 | u32 v; |
36 | ||
37 | /* Detect the bus width of the external flash memory */ | |
38 | v = __raw_readl(EP93XX_SYSCON_SYSCFG); | |
39 | if (v & EP93XX_SYSCON_SYSCFG_LCSN7) | |
40 | return 4; /* 32-bit */ | |
41 | else | |
42 | return 2; /* 16-bit */ | |
d941caa2 MG |
43 | } |
44 | ||
14636005 HF |
45 | static void __init micro9_register_flash(void) |
46 | { | |
16bcf78f HS |
47 | unsigned int width; |
48 | ||
14636005 | 49 | if (machine_is_micro9()) |
16bcf78f | 50 | width = 4; |
7232344d | 51 | else if (machine_is_micro9m() || machine_is_micro9s()) |
16bcf78f HS |
52 | width = micro9_detect_bootwidth(); |
53 | else | |
54 | width = 0; | |
55 | ||
56 | if (width) | |
57 | ep93xx_register_flash(width, EP93XX_CS1_PHYS_BASE, SZ_64M); | |
14636005 HF |
58 | } |
59 | ||
60 | ||
61 | /************************************************************************* | |
62 | * Micro9 Ethernet | |
63 | *************************************************************************/ | |
b370e082 | 64 | static struct ep93xx_eth_data __initdata micro9_eth_data = { |
14636005 HF |
65 | .phy_id = 0x1f, |
66 | }; | |
67 | ||
68 | ||
69 | static void __init micro9_init_machine(void) | |
d941caa2 | 70 | { |
e48f3fa3 | 71 | ep93xx_init_devices(); |
14636005 HF |
72 | ep93xx_register_eth(µ9_eth_data, 1); |
73 | micro9_register_flash(); | |
d941caa2 MG |
74 | } |
75 | ||
14636005 HF |
76 | |
77 | #ifdef CONFIG_MACH_MICRO9H | |
78 | MACHINE_START(MICRO9, "Contec Micro9-High") | |
94150095 | 79 | /* Maintainer: Hubert Feurstein <hubert.feurstein@contec.at> */ |
e562cf17 | 80 | .atag_offset = 0x100, |
e48f3fa3 HS |
81 | .map_io = ep93xx_map_io, |
82 | .init_irq = ep93xx_init_irq, | |
83 | .timer = &ep93xx_timer, | |
14636005 | 84 | .init_machine = micro9_init_machine, |
3275166e | 85 | .restart = ep93xx_restart, |
d941caa2 MG |
86 | MACHINE_END |
87 | #endif | |
88 | ||
d941caa2 | 89 | #ifdef CONFIG_MACH_MICRO9M |
14636005 | 90 | MACHINE_START(MICRO9M, "Contec Micro9-Mid") |
94150095 | 91 | /* Maintainer: Hubert Feurstein <hubert.feurstein@contec.at> */ |
e562cf17 | 92 | .atag_offset = 0x100, |
e48f3fa3 HS |
93 | .map_io = ep93xx_map_io, |
94 | .init_irq = ep93xx_init_irq, | |
95 | .timer = &ep93xx_timer, | |
14636005 | 96 | .init_machine = micro9_init_machine, |
3275166e | 97 | .restart = ep93xx_restart, |
d941caa2 MG |
98 | MACHINE_END |
99 | #endif | |
100 | ||
d941caa2 | 101 | #ifdef CONFIG_MACH_MICRO9L |
14636005 | 102 | MACHINE_START(MICRO9L, "Contec Micro9-Lite") |
94150095 | 103 | /* Maintainer: Hubert Feurstein <hubert.feurstein@contec.at> */ |
e562cf17 | 104 | .atag_offset = 0x100, |
e48f3fa3 HS |
105 | .map_io = ep93xx_map_io, |
106 | .init_irq = ep93xx_init_irq, | |
107 | .timer = &ep93xx_timer, | |
14636005 | 108 | .init_machine = micro9_init_machine, |
3275166e | 109 | .restart = ep93xx_restart, |
d941caa2 MG |
110 | MACHINE_END |
111 | #endif | |
7232344d HF |
112 | |
113 | #ifdef CONFIG_MACH_MICRO9S | |
114 | MACHINE_START(MICRO9S, "Contec Micro9-Slim") | |
115 | /* Maintainer: Hubert Feurstein <hubert.feurstein@contec.at> */ | |
e562cf17 | 116 | .atag_offset = 0x100, |
7232344d HF |
117 | .map_io = ep93xx_map_io, |
118 | .init_irq = ep93xx_init_irq, | |
119 | .timer = &ep93xx_timer, | |
120 | .init_machine = micro9_init_machine, | |
3275166e | 121 | .restart = ep93xx_restart, |
7232344d HF |
122 | MACHINE_END |
123 | #endif |