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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 | // SPDX-License-Identifier: GPL-2.0-only /* linux/arch/arm/mach-pxa/xcep.c * * Support for the Iskratel Electronics XCEP platform as used in * the Libera instruments from Instrumentation Technologies. * * Author: Ales Bardorfer <ales@i-tech.si> * Contributions by: Abbott, MG (Michael) <michael.abbott@diamond.ac.uk> * Contributions by: Matej Kenda <matej.kenda@i-tech.si> * Created: June 2006 * Copyright: (C) 2006-2009 Instrumentation Technologies */ #include <linux/platform_device.h> #include <linux/i2c.h> #include <linux/platform_data/i2c-pxa.h> #include <linux/smc91x.h> #include <linux/mtd/mtd.h> #include <linux/mtd/partitions.h> #include <linux/mtd/physmap.h> #include <asm/mach-types.h> #include <asm/mach/arch.h> #include <asm/mach/irq.h> #include <asm/mach/map.h> #include "pxa25x.h" #include "addr-map.h" #include "smemc.h" #include "generic.h" #include "devices.h" #define XCEP_ETH_PHYS (PXA_CS3_PHYS + 0x00000300) #define XCEP_ETH_PHYS_END (PXA_CS3_PHYS + 0x000fffff) #define XCEP_ETH_ATTR (PXA_CS3_PHYS + 0x02000000) #define XCEP_ETH_ATTR_END (PXA_CS3_PHYS + 0x020fffff) #define XCEP_ETH_IRQ IRQ_GPIO0 /* XCEP CPLD base */ #define XCEP_CPLD_BASE 0xf0000000 /* Flash partitions. */ static struct mtd_partition xcep_partitions[] = { { .name = "Bootloader", .size = 0x00040000, .offset = 0, .mask_flags = MTD_WRITEABLE }, { .name = "Bootloader ENV", .size = 0x00040000, .offset = 0x00040000, .mask_flags = MTD_WRITEABLE }, { .name = "Kernel", .size = 0x00100000, .offset = 0x00080000, }, { .name = "Rescue fs", .size = 0x00280000, .offset = 0x00180000, }, { .name = "Filesystem", .size = MTDPART_SIZ_FULL, .offset = 0x00400000 } }; static struct physmap_flash_data xcep_flash_data[] = { { .width = 4, /* bankwidth in bytes */ .parts = xcep_partitions, .nr_parts = ARRAY_SIZE(xcep_partitions) } }; static struct resource flash_resource = { .start = PXA_CS0_PHYS, .end = PXA_CS0_PHYS + SZ_32M - 1, .flags = IORESOURCE_MEM, }; static struct platform_device flash_device = { .name = "physmap-flash", .id = 0, .dev = { .platform_data = xcep_flash_data, }, .resource = &flash_resource, .num_resources = 1, }; /* SMC LAN91C111 network controller. */ static struct resource smc91x_resources[] = { [0] = { .name = "smc91x-regs", .start = XCEP_ETH_PHYS, .end = XCEP_ETH_PHYS_END, .flags = IORESOURCE_MEM, }, [1] = { .start = XCEP_ETH_IRQ, .end = XCEP_ETH_IRQ, .flags = IORESOURCE_IRQ, }, [2] = { .name = "smc91x-attrib", .start = XCEP_ETH_ATTR, .end = XCEP_ETH_ATTR_END, .flags = IORESOURCE_MEM, }, }; static struct smc91x_platdata xcep_smc91x_info = { .flags = SMC91X_USE_8BIT | SMC91X_USE_16BIT | SMC91X_USE_32BIT | SMC91X_NOWAIT | SMC91X_USE_DMA, }; static struct platform_device smc91x_device = { .name = "smc91x", .id = -1, .num_resources = ARRAY_SIZE(smc91x_resources), .resource = smc91x_resources, .dev = { .platform_data = &xcep_smc91x_info, }, }; static struct platform_device *devices[] __initdata = { &flash_device, &smc91x_device, }; /* We have to state that there are HWMON devices on the I2C bus on XCEP. * Drivers for HWMON verify capabilities of the adapter when loading and * refuse to attach if the adapter doesn't support HWMON class of devices. */ static struct i2c_pxa_platform_data xcep_i2c_platform_data = { .class = I2C_CLASS_HWMON }; static mfp_cfg_t xcep_pin_config[] __initdata = { GPIO79_nCS_3, /* SMC 91C111 chip select. */ GPIO80_nCS_4, /* CPLD chip select. */ /* SSP communication to MSP430 */ GPIO23_SSP1_SCLK, GPIO24_SSP1_SFRM, GPIO25_SSP1_TXD, GPIO26_SSP1_RXD, GPIO27_SSP1_EXTCLK }; static void __init xcep_init(void) { pxa2xx_mfp_config(ARRAY_AND_SIZE(xcep_pin_config)); pxa_set_ffuart_info(NULL); pxa_set_btuart_info(NULL); pxa_set_stuart_info(NULL); pxa_set_hwuart_info(NULL); /* See Intel XScale Developer's Guide for details */ /* Set RDF and RDN to appropriate values (chip select 3 (smc91x)) */ __raw_writel((__raw_readl(MSC1) & 0xffff) | 0xD5540000, MSC1); /* Set RDF and RDN to appropriate values (chip select 5 (fpga)) */ __raw_writel((__raw_readl(MSC2) & 0xffff) | 0x72A00000, MSC2); platform_add_devices(ARRAY_AND_SIZE(devices)); pxa_set_i2c_info(&xcep_i2c_platform_data); } MACHINE_START(XCEP, "Iskratel XCEP") .atag_offset = 0x100, .init_machine = xcep_init, .map_io = pxa25x_map_io, .nr_irqs = PXA_NR_IRQS, .init_irq = pxa25x_init_irq, .handle_irq = pxa25x_handle_irq, .init_time = pxa_timer_init, .restart = pxa_restart, MACHINE_END |