1/* linux/arch/arm/mach-pxa/xcep.c 2 * 3 * Support for the Iskratel Electronics XCEP platform as used in 4 * the Libera instruments from Instrumentation Technologies. 5 * 6 * Author: Ales Bardorfer <ales@i-tech.si> 7 * Contributions by: Abbott, MG (Michael) <michael.abbott@diamond.ac.uk> 8 * Contributions by: Matej Kenda <matej.kenda@i-tech.si> 9 * Created: June 2006 10 * Copyright: (C) 2006-2009 Instrumentation Technologies 11 * 12 * This program is free software; you can redistribute it and/or modify 13 * it under the terms of the GNU General Public License version 2 as 14 * published by the Free Software Foundation. 15 */ 16 17#include <linux/platform_device.h> 18#include <linux/i2c.h> 19#include <linux/smc91x.h> 20#include <linux/mtd/mtd.h> 21#include <linux/mtd/partitions.h> 22#include <linux/mtd/physmap.h> 23 24#include <asm/mach-types.h> 25#include <asm/mach/arch.h> 26#include <asm/mach/irq.h> 27#include <asm/mach/map.h> 28 29#include <plat/i2c.h> 30 31#include <mach/hardware.h> 32#include <mach/pxa2xx-regs.h> 33#include <mach/mfp-pxa25x.h> 34 35#include "generic.h" 36 37#define XCEP_ETH_PHYS (PXA_CS3_PHYS + 0x00000300) 38#define XCEP_ETH_PHYS_END (PXA_CS3_PHYS + 0x000fffff) 39#define XCEP_ETH_ATTR (PXA_CS3_PHYS + 0x02000000) 40#define XCEP_ETH_ATTR_END (PXA_CS3_PHYS + 0x020fffff) 41#define XCEP_ETH_IRQ IRQ_GPIO0 42 43/* XCEP CPLD base */ 44#define XCEP_CPLD_BASE 0xf0000000 45 46 47/* Flash partitions. */ 48 49static struct mtd_partition xcep_partitions[] = { 50 { 51 .name = "Bootloader", 52 .size = 0x00040000, 53 .offset = 0, 54 .mask_flags = MTD_WRITEABLE 55 }, { 56 .name = "Bootloader ENV", 57 .size = 0x00040000, 58 .offset = 0x00040000, 59 .mask_flags = MTD_WRITEABLE 60 }, { 61 .name = "Kernel", 62 .size = 0x00100000, 63 .offset = 0x00080000, 64 }, { 65 .name = "Rescue fs", 66 .size = 0x00280000, 67 .offset = 0x00180000, 68 }, { 69 .name = "Filesystem", 70 .size = MTDPART_SIZ_FULL, 71 .offset = 0x00400000 72 } 73}; 74 75static struct physmap_flash_data xcep_flash_data[] = { 76 { 77 .width = 4, /* bankwidth in bytes */ 78 .parts = xcep_partitions, 79 .nr_parts = ARRAY_SIZE(xcep_partitions) 80 } 81}; 82 83static struct resource flash_resource = { 84 .start = PXA_CS0_PHYS, 85 .end = PXA_CS0_PHYS + SZ_32M - 1, 86 .flags = IORESOURCE_MEM, 87}; 88 89static struct platform_device flash_device = { 90 .name = "physmap-flash", 91 .id = 0, 92 .dev = { 93 .platform_data = xcep_flash_data, 94 }, 95 .resource = &flash_resource, 96 .num_resources = 1, 97}; 98 99 100 101/* SMC LAN91C111 network controller. */ 102 103static struct resource smc91x_resources[] = { 104 [0] = { 105 .name = "smc91x-regs", 106 .start = XCEP_ETH_PHYS, 107 .end = XCEP_ETH_PHYS_END, 108 .flags = IORESOURCE_MEM, 109 }, 110 [1] = { 111 .start = XCEP_ETH_IRQ, 112 .end = XCEP_ETH_IRQ, 113 .flags = IORESOURCE_IRQ, 114 }, 115 [2] = { 116 .name = "smc91x-attrib", 117 .start = XCEP_ETH_ATTR, 118 .end = XCEP_ETH_ATTR_END, 119 .flags = IORESOURCE_MEM, 120 }, 121}; 122 123static struct smc91x_platdata xcep_smc91x_info = { 124 .flags = SMC91X_USE_32BIT | SMC91X_NOWAIT | SMC91X_USE_DMA, 125}; 126 127static struct platform_device smc91x_device = { 128 .name = "smc91x", 129 .id = -1, 130 .num_resources = ARRAY_SIZE(smc91x_resources), 131 .resource = smc91x_resources, 132 .dev = { 133 .platform_data = &xcep_smc91x_info, 134 }, 135}; 136 137 138static struct platform_device *devices[] __initdata = { 139 &flash_device, 140 &smc91x_device, 141}; 142 143 144/* We have to state that there are HWMON devices on the I2C bus on XCEP. 145 * Drivers for HWMON verify capabilities of the adapter when loading and 146 * refuse to attach if the adapter doesn't support HWMON class of devices. 147 * See also Documentation/i2c/porting-clients. */ 148static struct i2c_pxa_platform_data xcep_i2c_platform_data = { 149 .class = I2C_CLASS_HWMON 150}; 151 152 153static mfp_cfg_t xcep_pin_config[] __initdata = { 154 GPIO79_nCS_3, /* SMC 91C111 chip select. */ 155 GPIO80_nCS_4, /* CPLD chip select. */ 156 /* SSP communication to MSP430 */ 157 GPIO23_SSP1_SCLK, 158 GPIO24_SSP1_SFRM, 159 GPIO25_SSP1_TXD, 160 GPIO26_SSP1_RXD, 161 GPIO27_SSP1_EXTCLK 162}; 163 164static void __init xcep_init(void) 165{ 166 pxa2xx_mfp_config(ARRAY_AND_SIZE(xcep_pin_config)); 167 168 pxa_set_ffuart_info(NULL); 169 pxa_set_btuart_info(NULL); 170 pxa_set_stuart_info(NULL); 171 pxa_set_hwuart_info(NULL); 172 173 /* See Intel XScale Developer's Guide for details */ 174 /* Set RDF and RDN to appropriate values (chip select 3 (smc91x)) */ 175 MSC1 = (MSC1 & 0xffff) | 0xD5540000; 176 /* Set RDF and RDN to appropriate values (chip select 5 (fpga)) */ 177 MSC2 = (MSC2 & 0xffff) | 0x72A00000; 178 179 platform_add_devices(ARRAY_AND_SIZE(devices)); 180 pxa_set_i2c_info(&xcep_i2c_platform_data); 181} 182 183MACHINE_START(XCEP, "Iskratel XCEP") 184 .phys_io = 0x40000000, 185 .io_pg_offst = (io_p2v(0x40000000) >> 18) & 0xfffc, 186 .boot_params = 0xa0000100, 187 .init_machine = xcep_init, 188 .map_io = pxa_map_io, 189 .init_irq = pxa25x_init_irq, 190 .timer = &pxa_timer, 191MACHINE_END 192