| Marcelo Roberto Jimenez | 9f15d2c | 2010-12-16 20:51:30 +0100 | [diff] [blame^] | 1 | /* |
| 2 | * linux/arch/arm/mach-sa1100/nanoengine.c |
| 3 | * |
| 4 | * Bright Star Engineering's nanoEngine board init code. |
| 5 | * |
| 6 | * Copyright (C) 2009 Marcelo Roberto Jimenez <mroberto@cpti.cetuc.puc-rio.br> |
| 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> |
| 22 | |
| 23 | #include <asm/mach/arch.h> |
| 24 | #include <asm/mach/flash.h> |
| 25 | #include <asm/mach/map.h> |
| 26 | #include <asm/mach/serial_sa1100.h> |
| 27 | |
| 28 | #include <mach/hardware.h> |
| 29 | |
| 30 | #include "generic.h" |
| 31 | |
| 32 | /* Flash bank 0 */ |
| 33 | static struct mtd_partition nanoengine_partitions[] = { |
| 34 | { |
| 35 | .name = "nanoEngine boot firmware and parameter table", |
| 36 | .size = 0x00010000, /* 32K */ |
| 37 | .offset = 0, |
| 38 | .mask_flags = MTD_WRITEABLE, |
| 39 | }, { |
| 40 | .name = "kernel/initrd reserved", |
| 41 | .size = 0x002f0000, |
| 42 | .offset = 0x00010000, |
| 43 | .mask_flags = MTD_WRITEABLE, |
| 44 | }, { |
| 45 | .name = "experimental filesystem allocation", |
| 46 | .size = 0x00100000, |
| 47 | .offset = 0x00300000, |
| 48 | .mask_flags = MTD_WRITEABLE, |
| 49 | } |
| 50 | }; |
| 51 | |
| 52 | static struct flash_platform_data nanoengine_flash_data = { |
| 53 | .map_name = "jedec_probe", |
| 54 | .parts = nanoengine_partitions, |
| 55 | .nr_parts = ARRAY_SIZE(nanoengine_partitions), |
| 56 | }; |
| 57 | |
| 58 | static struct resource nanoengine_flash_resources[] = { |
| 59 | { |
| 60 | .start = SA1100_CS0_PHYS, |
| 61 | .end = SA1100_CS0_PHYS + SZ_32M - 1, |
| 62 | .flags = IORESOURCE_MEM, |
| 63 | }, { |
| 64 | .start = SA1100_CS1_PHYS, |
| 65 | .end = SA1100_CS1_PHYS + SZ_32M - 1, |
| 66 | .flags = IORESOURCE_MEM, |
| 67 | } |
| 68 | }; |
| 69 | |
| 70 | static struct map_desc nanoengine_io_desc[] __initdata = { |
| 71 | { |
| 72 | /* System Registers */ |
| 73 | .virtual = 0xf0000000, |
| 74 | .pfn = __phys_to_pfn(0x10000000), |
| 75 | .length = 0x00100000, |
| 76 | .type = MT_DEVICE |
| 77 | }, { |
| 78 | /* Internal PCI Config Space */ |
| 79 | .virtual = 0xf1000000, |
| 80 | .pfn = __phys_to_pfn(0x18A00000), |
| 81 | .length = 0x00100000, |
| 82 | .type = MT_DEVICE |
| 83 | } |
| 84 | }; |
| 85 | |
| 86 | static void __init nanoengine_map_io(void) |
| 87 | { |
| 88 | sa1100_map_io(); |
| 89 | iotable_init(nanoengine_io_desc, ARRAY_SIZE(nanoengine_io_desc)); |
| 90 | |
| 91 | sa1100_register_uart(0, 1); |
| 92 | sa1100_register_uart(1, 2); |
| 93 | sa1100_register_uart(2, 3); |
| 94 | Ser1SDCR0 |= SDCR0_UART; |
| 95 | /* disable IRDA -- UART2 is used as a normal serial port */ |
| 96 | Ser2UTCR4 = 0; |
| 97 | Ser2HSCR0 = 0; |
| 98 | } |
| 99 | |
| 100 | static void __init nanoengine_init(void) |
| 101 | { |
| 102 | sa11x0_register_mtd(&nanoengine_flash_data, nanoengine_flash_resources, |
| 103 | ARRAY_SIZE(nanoengine_flash_resources)); |
| 104 | } |
| 105 | |
| 106 | MACHINE_START(NANOENGINE, "BSE nanoEngine") |
| 107 | .boot_params = 0xc0000000, |
| 108 | .map_io = nanoengine_map_io, |
| 109 | .init_irq = sa1100_init_irq, |
| 110 | .timer = &sa1100_timer, |
| 111 | .init_machine = nanoengine_init, |
| 112 | MACHINE_END |