projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 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, |
| d941caa2 MG |
85 | MACHINE_END |
| 86 | #endif | |
| 87 | ||
| d941caa2 | 88 | #ifdef CONFIG_MACH_MICRO9M |
| 14636005 | 89 | MACHINE_START(MICRO9M, "Contec Micro9-Mid") |
| 94150095 | 90 | /* Maintainer: Hubert Feurstein <hubert.feurstein@contec.at> */ |
| e562cf17 | 91 | .atag_offset = 0x100, |
| e48f3fa3 HS |
92 | .map_io = ep93xx_map_io, |
| 93 | .init_irq = ep93xx_init_irq, | |
| 94 | .timer = &ep93xx_timer, | |
| 14636005 | 95 | .init_machine = micro9_init_machine, |
| d941caa2 MG |
96 | MACHINE_END |
| 97 | #endif | |
| 98 | ||
| d941caa2 | 99 | #ifdef CONFIG_MACH_MICRO9L |
| 14636005 | 100 | MACHINE_START(MICRO9L, "Contec Micro9-Lite") |
| 94150095 | 101 | /* Maintainer: Hubert Feurstein <hubert.feurstein@contec.at> */ |
| e562cf17 | 102 | .atag_offset = 0x100, |
| e48f3fa3 HS |
103 | .map_io = ep93xx_map_io, |
| 104 | .init_irq = ep93xx_init_irq, | |
| 105 | .timer = &ep93xx_timer, | |
| 14636005 | 106 | .init_machine = micro9_init_machine, |
| d941caa2 MG |
107 | MACHINE_END |
| 108 | #endif | |
| 7232344d HF |
109 | |
| 110 | #ifdef CONFIG_MACH_MICRO9S | |
| 111 | MACHINE_START(MICRO9S, "Contec Micro9-Slim") | |
| 112 | /* Maintainer: Hubert Feurstein <hubert.feurstein@contec.at> */ | |
| e562cf17 | 113 | .atag_offset = 0x100, |
| 7232344d HF |
114 | .map_io = ep93xx_map_io, |
| 115 | .init_irq = ep93xx_init_irq, | |
| 116 | .timer = &ep93xx_timer, | |
| 117 | .init_machine = micro9_init_machine, | |
| 118 | MACHINE_END | |
| 119 | #endif |