projects / mirror_ubuntu-artful-kernel.git / blame
| Commit | Line | Data |
|---|---|---|
| 9f15d2ca MRJ |
1 | /* |
| 2 | * linux/arch/arm/mach-sa1100/nanoengine.c | |
| 3 | * | |
| 4 | * Bright Star Engineering's nanoEngine board init code. | |
| 5 | * | |
| fa87672a | 6 | * Copyright (C) 2010 Marcelo Roberto Jimenez <mroberto@cpti.cetuc.puc-rio.br> |
| 9f15d2ca MRJ |
7 | * |
| 8 | * This program is free software; you can redistribute it and/or modify | |
| 9 | * it under the terms of the GNU General Public License version 2 as | |
| 10 | * published by the Free Software Foundation. | |
| 11 | * | |
| 12 | */ | |
| 13 | ||
| 14 | #include <linux/init.h> | |
| 15 | #include <linux/kernel.h> | |
| 16 | #include <linux/mtd/mtd.h> | |
| 17 | #include <linux/mtd/partitions.h> | |
| 18 | #include <linux/root_dev.h> | |
| 19 | ||
| 20 | #include <asm/mach-types.h> | |
| 21 | #include <asm/setup.h> | |
| 2b974795 | 22 | #include <asm/page.h> |
| 9f15d2ca MRJ |
23 | |
| 24 | #include <asm/mach/arch.h> | |
| 25 | #include <asm/mach/flash.h> | |
| 26 | #include <asm/mach/map.h> | |
| 27 | #include <asm/mach/serial_sa1100.h> | |
| 28 | ||
| 29 | #include <mach/hardware.h> | |
| b080ac8a | 30 | #include <mach/nanoengine.h> |
| f314f33b | 31 | #include <mach/irqs.h> |
| 9f15d2ca MRJ |
32 | |
| 33 | #include "generic.h" | |
| 34 | ||
| 35 | /* Flash bank 0 */ | |
| 36 | static struct mtd_partition nanoengine_partitions[] = { | |
| 37 | { | |
| 38 | .name = "nanoEngine boot firmware and parameter table", | |
| 39 | .size = 0x00010000, /* 32K */ | |
| 40 | .offset = 0, | |
| 41 | .mask_flags = MTD_WRITEABLE, | |
| 42 | }, { | |
| 43 | .name = "kernel/initrd reserved", | |
| 44 | .size = 0x002f0000, | |
| 45 | .offset = 0x00010000, | |
| 46 | .mask_flags = MTD_WRITEABLE, | |
| 47 | }, { | |
| 48 | .name = "experimental filesystem allocation", | |
| 49 | .size = 0x00100000, | |
| 50 | .offset = 0x00300000, | |
| 51 | .mask_flags = MTD_WRITEABLE, | |
| 52 | } | |
| 53 | }; | |
| 54 | ||
| 55 | static struct flash_platform_data nanoengine_flash_data = { | |
| 56 | .map_name = "jedec_probe", | |
| 57 | .parts = nanoengine_partitions, | |
| 58 | .nr_parts = ARRAY_SIZE(nanoengine_partitions), | |
| 59 | }; | |
| 60 | ||
| 61 | static struct resource nanoengine_flash_resources[] = { | |
| a181099e RK |
62 | DEFINE_RES_MEM(SA1100_CS0_PHYS, SZ_32M), |
| 63 | DEFINE_RES_MEM(SA1100_CS1_PHYS, SZ_32M), | |
| 9f15d2ca MRJ |
64 | }; |
| 65 | ||
| 66 | static struct map_desc nanoengine_io_desc[] __initdata = { | |
| 67 | { | |
| 68 | /* System Registers */ | |
| 69 | .virtual = 0xf0000000, | |
| 70 | .pfn = __phys_to_pfn(0x10000000), | |
| 71 | .length = 0x00100000, | |
| 72 | .type = MT_DEVICE | |
| b080ac8a MRJ |
73 | }, { |
| 74 | /* Internal PCI Memory Read/Write */ | |
| 75 | .virtual = NANO_PCI_MEM_RW_VIRT, | |
| 76 | .pfn = __phys_to_pfn(NANO_PCI_MEM_RW_PHYS), | |
| 77 | .length = NANO_PCI_MEM_RW_SIZE, | |
| 78 | .type = MT_DEVICE | |
| 9f15d2ca MRJ |
79 | }, { |
| 80 | /* Internal PCI Config Space */ | |
| b080ac8a MRJ |
81 | .virtual = NANO_PCI_CONFIG_SPACE_VIRT, |
| 82 | .pfn = __phys_to_pfn(NANO_PCI_CONFIG_SPACE_PHYS), | |
| 83 | .length = NANO_PCI_CONFIG_SPACE_SIZE, | |
| 9f15d2ca MRJ |
84 | .type = MT_DEVICE |
| 85 | } | |
| 86 | }; | |
| 87 | ||
| 88 | static void __init nanoengine_map_io(void) | |
| 89 | { | |
| 90 | sa1100_map_io(); | |
| 91 | iotable_init(nanoengine_io_desc, ARRAY_SIZE(nanoengine_io_desc)); | |
| 92 | ||
| 93 | sa1100_register_uart(0, 1); | |
| 94 | sa1100_register_uart(1, 2); | |
| 95 | sa1100_register_uart(2, 3); | |
| 96 | Ser1SDCR0 |= SDCR0_UART; | |
| 97 | /* disable IRDA -- UART2 is used as a normal serial port */ | |
| 98 | Ser2UTCR4 = 0; | |
| 99 | Ser2HSCR0 = 0; | |
| 100 | } | |
| 101 | ||
| 102 | static void __init nanoengine_init(void) | |
| 103 | { | |
| 104 | sa11x0_register_mtd(&nanoengine_flash_data, nanoengine_flash_resources, | |
| 105 | ARRAY_SIZE(nanoengine_flash_resources)); | |
| 106 | } | |
| 107 | ||
| 108 | MACHINE_START(NANOENGINE, "BSE nanoEngine") | |
| 17f4425d | 109 | .atag_offset = 0x100, |
| 9f15d2ca | 110 | .map_io = nanoengine_map_io, |
| f314f33b | 111 | .nr_irqs = SA1100_NR_IRQS, |
| 9f15d2ca MRJ |
112 | .init_irq = sa1100_init_irq, |
| 113 | .timer = &sa1100_timer, | |
| 114 | .init_machine = nanoengine_init, | |
| d9ca5839 | 115 | .restart = sa11x0_restart, |
| 9f15d2ca | 116 | MACHINE_END |