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 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 30 * Micro9-Lite uses a separate MTD map driver for flash support 31 * Micro9-Slim has up to 64MB of either 32-bit or 16-bit flash on CS1 32 *************************************************************************/ 33static unsigned int __init micro9_detect_bootwidth(void) 34{ 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 */ 43} 44 45static void __init micro9_register_flash(void) 46{ 47 unsigned int width; 48 49 if (machine_is_micro9()) 50 width = 4; 51 else if (machine_is_micro9m() || machine_is_micro9s()) 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); 58} 59 60 61/************************************************************************* 62 * Micro9 Ethernet 63 *************************************************************************/ 64static struct ep93xx_eth_data __initdata micro9_eth_data = { 65 .phy_id = 0x1f, 66}; 67 68 69static void __init micro9_init_machine(void) 70{ 71 ep93xx_init_devices(); 72 ep93xx_register_eth(µ9_eth_data, 1); 73 micro9_register_flash(); 74} 75 76 77#ifdef CONFIG_MACH_MICRO9H 78MACHINE_START(MICRO9, "Contec Micro9-High") 79 /* Maintainer: Hubert Feurstein <hubert.feurstein@contec.at> */ 80 .phys_io = EP93XX_APB_PHYS_BASE, 81 .io_pg_offst = ((EP93XX_APB_VIRT_BASE) >> 18) & 0xfffc, 82 .boot_params = EP93XX_SDCE3_PHYS_BASE_SYNC + 0x100, 83 .map_io = ep93xx_map_io, 84 .init_irq = ep93xx_init_irq, 85 .timer = &ep93xx_timer, 86 .init_machine = micro9_init_machine, 87MACHINE_END 88#endif 89 90#ifdef CONFIG_MACH_MICRO9M 91MACHINE_START(MICRO9M, "Contec Micro9-Mid") 92 /* Maintainer: Hubert Feurstein <hubert.feurstein@contec.at> */ 93 .phys_io = EP93XX_APB_PHYS_BASE, 94 .io_pg_offst = ((EP93XX_APB_VIRT_BASE) >> 18) & 0xfffc, 95 .boot_params = EP93XX_SDCE3_PHYS_BASE_ASYNC + 0x100, 96 .map_io = ep93xx_map_io, 97 .init_irq = ep93xx_init_irq, 98 .timer = &ep93xx_timer, 99 .init_machine = micro9_init_machine, 100MACHINE_END 101#endif 102 103#ifdef CONFIG_MACH_MICRO9L 104MACHINE_START(MICRO9L, "Contec Micro9-Lite") 105 /* Maintainer: Hubert Feurstein <hubert.feurstein@contec.at> */ 106 .phys_io = EP93XX_APB_PHYS_BASE, 107 .io_pg_offst = ((EP93XX_APB_VIRT_BASE) >> 18) & 0xfffc, 108 .boot_params = EP93XX_SDCE3_PHYS_BASE_SYNC + 0x100, 109 .map_io = ep93xx_map_io, 110 .init_irq = ep93xx_init_irq, 111 .timer = &ep93xx_timer, 112 .init_machine = micro9_init_machine, 113MACHINE_END 114#endif 115 116#ifdef CONFIG_MACH_MICRO9S 117MACHINE_START(MICRO9S, "Contec Micro9-Slim") 118 /* Maintainer: Hubert Feurstein <hubert.feurstein@contec.at> */ 119 .phys_io = EP93XX_APB_PHYS_BASE, 120 .io_pg_offst = ((EP93XX_APB_VIRT_BASE) >> 18) & 0xfffc, 121 .boot_params = EP93XX_SDCE3_PHYS_BASE_ASYNC + 0x100, 122 .map_io = ep93xx_map_io, 123 .init_irq = ep93xx_init_irq, 124 .timer = &ep93xx_timer, 125 .init_machine = micro9_init_machine, 126MACHINE_END 127#endif 128