| | 1 | /* |
| | 2 | * linux/arch/arm/mach-ep93xx/micro9.c |
| | 3 | * |
| | 4 | * Copyright (C) 2006 Contec Steuerungstechnik & Automation GmbH |
| | 5 | * Manfred Gruber <m.gruber@tirol.com> |
| | 6 | * Copyright (C) 2009 Contec Steuerungstechnik & Automation GmbH |
| | 7 | * Hubert Feurstein <hubert.feurstein@contec.at> |
| | 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 | |
| | 14 | #include <linux/kernel.h> |
| | 15 | #include <linux/init.h> |
| | 16 | #include <linux/platform_device.h> |
| | 17 | #include <linux/io.h> |
| | 18 | |
| | 19 | #include <mach/hardware.h> |
| | 20 | |
| | 21 | #include <asm/mach-types.h> |
| | 22 | #include <asm/mach/arch.h> |
| | 23 | |
| | 24 | #include "soc.h" |
| | 25 | |
| | 26 | /************************************************************************* |
| | 27 | * Micro9 NOR Flash |
| | 28 | * |
| | 29 | * Micro9-High has up to 64MB of 32-bit flash on CS1 |
| | 30 | * Micro9-Mid has up to 64MB of either 32-bit or 16-bit flash on CS1 |
| | 31 | * Micro9-Lite uses a separate MTD map driver for flash support |
| | 32 | * Micro9-Slim has up to 64MB of either 32-bit or 16-bit flash on CS1 |
| | 33 | *************************************************************************/ |
| | 34 | static unsigned int __init micro9_detect_bootwidth(void) |
| | 35 | { |
| | 36 | u32 v; |
| | 37 | |
| | 38 | /* Detect the bus width of the external flash memory */ |
| | 39 | v = __raw_readl(EP93XX_SYSCON_SYSCFG); |
| | 40 | if (v & EP93XX_SYSCON_SYSCFG_LCSN7) |
| | 41 | return 4; /* 32-bit */ |
| | 42 | else |
| | 43 | return 2; /* 16-bit */ |
| | 44 | } |
| | 45 | |
| | 46 | static void __init micro9_register_flash(void) |
| | 47 | { |
| | 48 | unsigned int width; |
| | 49 | |
| | 50 | if (machine_is_micro9()) |
| | 51 | width = 4; |
| | 52 | else if (machine_is_micro9m() || machine_is_micro9s()) |
| | 53 | width = micro9_detect_bootwidth(); |
| | 54 | else |
| | 55 | width = 0; |
| | 56 | |
| | 57 | if (width) |
| | 58 | ep93xx_register_flash(width, EP93XX_CS1_PHYS_BASE, SZ_64M); |
| | 59 | } |
| | 60 | |
| | 61 | |
| | 62 | /************************************************************************* |
| | 63 | * Micro9 Ethernet |
| | 64 | *************************************************************************/ |
| | 65 | static struct ep93xx_eth_data __initdata micro9_eth_data = { |
| | 66 | .phy_id = 0x1f, |
| | 67 | }; |
| | 68 | |
| | 69 | |
| | 70 | static void __init micro9_init_machine(void) |
| | 71 | { |
| | 72 | ep93xx_init_devices(); |
| | 73 | ep93xx_register_eth(µ9_eth_data, 1); |
| | 74 | micro9_register_flash(); |
| | 75 | } |
| | 76 | |
| | 77 | |
| | 78 | #ifdef CONFIG_MACH_MICRO9H |
| | 79 | MACHINE_START(MICRO9, "Contec Micro9-High") |
| | 80 | /* Maintainer: Hubert Feurstein <hubert.feurstein@contec.at> */ |
| | 81 | .atag_offset = 0x100, |
| | 82 | .map_io = ep93xx_map_io, |
| | 83 | .init_irq = ep93xx_init_irq, |
| | 84 | .init_time = ep93xx_timer_init, |
| | 85 | .init_machine = micro9_init_machine, |
| | 86 | .init_late = ep93xx_init_late, |
| | 87 | .restart = ep93xx_restart, |
| | 88 | MACHINE_END |
| | 89 | #endif |
| | 90 | |
| | 91 | #ifdef CONFIG_MACH_MICRO9M |
| | 92 | MACHINE_START(MICRO9M, "Contec Micro9-Mid") |
| | 93 | /* Maintainer: Hubert Feurstein <hubert.feurstein@contec.at> */ |
| | 94 | .atag_offset = 0x100, |
| | 95 | .map_io = ep93xx_map_io, |
| | 96 | .init_irq = ep93xx_init_irq, |
| | 97 | .init_time = ep93xx_timer_init, |
| | 98 | .init_machine = micro9_init_machine, |
| | 99 | .init_late = ep93xx_init_late, |
| | 100 | .restart = ep93xx_restart, |
| | 101 | MACHINE_END |
| | 102 | #endif |
| | 103 | |
| | 104 | #ifdef CONFIG_MACH_MICRO9L |
| | 105 | MACHINE_START(MICRO9L, "Contec Micro9-Lite") |
| | 106 | /* Maintainer: Hubert Feurstein <hubert.feurstein@contec.at> */ |
| | 107 | .atag_offset = 0x100, |
| | 108 | .map_io = ep93xx_map_io, |
| | 109 | .init_irq = ep93xx_init_irq, |
| | 110 | .init_time = ep93xx_timer_init, |
| | 111 | .init_machine = micro9_init_machine, |
| | 112 | .init_late = ep93xx_init_late, |
| | 113 | .restart = ep93xx_restart, |
| | 114 | MACHINE_END |
| | 115 | #endif |
| | 116 | |
| | 117 | #ifdef CONFIG_MACH_MICRO9S |
| | 118 | MACHINE_START(MICRO9S, "Contec Micro9-Slim") |
| | 119 | /* Maintainer: Hubert Feurstein <hubert.feurstein@contec.at> */ |
| | 120 | .atag_offset = 0x100, |
| | 121 | .map_io = ep93xx_map_io, |
| | 122 | .init_irq = ep93xx_init_irq, |
| | 123 | .init_time = ep93xx_timer_init, |
| | 124 | .init_machine = micro9_init_machine, |
| | 125 | .init_late = ep93xx_init_late, |
| | 126 | .restart = ep93xx_restart, |
| | 127 | MACHINE_END |
| | 128 | #endif |
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