Anton Vorontsov | e94cdef | 2010-03-26 21:19:02 +0300 | [diff] [blame^] | 1 | /* |
| 2 | * Cavium Networks CNS3420 Validation Board |
| 3 | * |
| 4 | * Copyright 2000 Deep Blue Solutions Ltd |
| 5 | * Copyright 2008 ARM Limited |
| 6 | * Copyright 2008 Cavium Networks |
| 7 | * Scott Shu |
| 8 | * Copyright 2010 MontaVista Software, LLC. |
| 9 | * Anton Vorontsov <avorontsov@mvista.com> |
| 10 | * |
| 11 | * This file is free software; you can redistribute it and/or modify |
| 12 | * it under the terms of the GNU General Public License, Version 2, as |
| 13 | * published by the Free Software Foundation. |
| 14 | */ |
| 15 | |
| 16 | #include <linux/init.h> |
| 17 | #include <linux/kernel.h> |
| 18 | #include <linux/compiler.h> |
| 19 | #include <linux/io.h> |
| 20 | #include <linux/serial_core.h> |
| 21 | #include <linux/serial_8250.h> |
| 22 | #include <linux/platform_device.h> |
| 23 | #include <linux/mtd/mtd.h> |
| 24 | #include <linux/mtd/physmap.h> |
| 25 | #include <linux/mtd/partitions.h> |
| 26 | #include <asm/setup.h> |
| 27 | #include <asm/mach-types.h> |
| 28 | #include <asm/mach/arch.h> |
| 29 | #include <asm/mach/map.h> |
| 30 | #include <asm/mach/time.h> |
| 31 | #include <mach/hardware.h> |
| 32 | #include <mach/cns3xxx.h> |
| 33 | #include <mach/irqs.h> |
| 34 | #include "core.h" |
| 35 | |
| 36 | /* |
| 37 | * NOR Flash |
| 38 | */ |
| 39 | static struct mtd_partition cns3420_nor_partitions[] = { |
| 40 | { |
| 41 | .name = "uboot", |
| 42 | .size = 0x00040000, |
| 43 | .offset = 0, |
| 44 | .mask_flags = MTD_WRITEABLE, |
| 45 | }, { |
| 46 | .name = "kernel", |
| 47 | .size = 0x004C0000, |
| 48 | .offset = MTDPART_OFS_APPEND, |
| 49 | }, { |
| 50 | .name = "filesystem", |
| 51 | .size = 0x7000000, |
| 52 | .offset = MTDPART_OFS_APPEND, |
| 53 | }, { |
| 54 | .name = "filesystem2", |
| 55 | .size = 0x0AE0000, |
| 56 | .offset = MTDPART_OFS_APPEND, |
| 57 | }, { |
| 58 | .name = "ubootenv", |
| 59 | .size = MTDPART_SIZ_FULL, |
| 60 | .offset = MTDPART_OFS_APPEND, |
| 61 | }, |
| 62 | }; |
| 63 | |
| 64 | static struct physmap_flash_data cns3420_nor_pdata = { |
| 65 | .width = 2, |
| 66 | .parts = cns3420_nor_partitions, |
| 67 | .nr_parts = ARRAY_SIZE(cns3420_nor_partitions), |
| 68 | }; |
| 69 | |
| 70 | static struct resource cns3420_nor_res = { |
| 71 | .start = CNS3XXX_FLASH_BASE, |
| 72 | .end = CNS3XXX_FLASH_BASE + SZ_128M - 1, |
| 73 | .flags = IORESOURCE_MEM | IORESOURCE_MEM_32BIT, |
| 74 | }; |
| 75 | |
| 76 | static struct platform_device cns3420_nor_pdev = { |
| 77 | .name = "physmap-flash", |
| 78 | .id = 0, |
| 79 | .resource = &cns3420_nor_res, |
| 80 | .num_resources = 1, |
| 81 | .dev = { |
| 82 | .platform_data = &cns3420_nor_pdata, |
| 83 | }, |
| 84 | }; |
| 85 | |
| 86 | /* |
| 87 | * UART |
| 88 | */ |
| 89 | static void __init cns3420_early_serial_setup(void) |
| 90 | { |
| 91 | #ifdef CONFIG_SERIAL_8250_CONSOLE |
| 92 | static struct uart_port cns3420_serial_port = { |
| 93 | .membase = (void __iomem *)CNS3XXX_UART0_BASE_VIRT, |
| 94 | .mapbase = CNS3XXX_UART0_BASE, |
| 95 | .irq = IRQ_CNS3XXX_UART0, |
| 96 | .iotype = UPIO_MEM, |
| 97 | .flags = UPF_BOOT_AUTOCONF | UPF_FIXED_TYPE, |
| 98 | .regshift = 2, |
| 99 | .uartclk = 24000000, |
| 100 | .line = 0, |
| 101 | .type = PORT_16550A, |
| 102 | .fifosize = 16, |
| 103 | }; |
| 104 | |
| 105 | early_serial_setup(&cns3420_serial_port); |
| 106 | #endif |
| 107 | } |
| 108 | |
| 109 | /* |
| 110 | * Initialization |
| 111 | */ |
| 112 | static struct platform_device *cns3420_pdevs[] __initdata = { |
| 113 | &cns3420_nor_pdev, |
| 114 | }; |
| 115 | |
| 116 | static void __init cns3420_init(void) |
| 117 | { |
| 118 | platform_add_devices(cns3420_pdevs, ARRAY_SIZE(cns3420_pdevs)); |
| 119 | |
| 120 | pm_power_off = cns3xxx_power_off; |
| 121 | } |
| 122 | |
| 123 | static struct map_desc cns3420_io_desc[] __initdata = { |
| 124 | { |
| 125 | .virtual = CNS3XXX_UART0_BASE_VIRT, |
| 126 | .pfn = __phys_to_pfn(CNS3XXX_UART0_BASE), |
| 127 | .length = SZ_4K, |
| 128 | .type = MT_DEVICE, |
| 129 | }, |
| 130 | }; |
| 131 | |
| 132 | static void __init cns3420_map_io(void) |
| 133 | { |
| 134 | cns3xxx_map_io(); |
| 135 | iotable_init(cns3420_io_desc, ARRAY_SIZE(cns3420_io_desc)); |
| 136 | |
| 137 | cns3420_early_serial_setup(); |
| 138 | } |
| 139 | |
| 140 | MACHINE_START(CNS3420VB, "Cavium Networks CNS3420 Validation Board") |
| 141 | .phys_io = CNS3XXX_UART0_BASE, |
| 142 | .io_pg_offst = (CNS3XXX_UART0_BASE_VIRT >> 18) & 0xfffc, |
| 143 | .boot_params = 0x00000100, |
| 144 | .map_io = cns3420_map_io, |
| 145 | .init_irq = cns3xxx_init_irq, |
| 146 | .timer = &cns3xxx_timer, |
| 147 | .init_machine = cns3420_init, |
| 148 | MACHINE_END |