arch/arm/mach-cns3xxx/cns3420vb.c

   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/dma-mapping.h>
  21 #include <linux/serial_core.h>
  22 #include <linux/serial_8250.h>
  23 #include <linux/platform_device.h>
  24 #include <linux/mtd/mtd.h>
  25 #include <linux/mtd/physmap.h>
  26 #include <linux/mtd/partitions.h>
  27 #include <asm/setup.h>
  28 #include <asm/mach-types.h>
  29 #include <asm/mach/arch.h>
  30 #include <asm/mach/map.h>
  31 #include <asm/mach/time.h>
  32 #include <mach/cns3xxx.h>
  33 #include <mach/irqs.h>
  34 #include "core.h"
  35 #include "devices.h"
  36
  37 /*
  38  * NOR Flash
  39  */
  40 static struct mtd_partition cns3420_nor_partitions[] = {
  41         {
  42                 .name           = "uboot",
  43                 .size           = 0x00040000,
  44                 .offset         = 0,
  45                 .mask_flags     = MTD_WRITEABLE,
  46         }, {
  47                 .name           = "kernel",
  48                 .size           = 0x004C0000,
  49                 .offset         = MTDPART_OFS_APPEND,
  50         }, {
  51                 .name           = "filesystem",
  52                 .size           = 0x7000000,
  53                 .offset         = MTDPART_OFS_APPEND,
  54         }, {
  55                 .name           = "filesystem2",
  56                 .size           = 0x0AE0000,
  57                 .offset         = MTDPART_OFS_APPEND,
  58         }, {
  59                 .name           = "ubootenv",
  60                 .size           = MTDPART_SIZ_FULL,
  61                 .offset         = MTDPART_OFS_APPEND,
  62         },
  63 };
  64
  65 static struct physmap_flash_data cns3420_nor_pdata = {
  66         .width = 2,
  67         .parts = cns3420_nor_partitions,
  68         .nr_parts = ARRAY_SIZE(cns3420_nor_partitions),
  69 };
  70
  71 static struct resource cns3420_nor_res = {
  72         .start = CNS3XXX_FLASH_BASE,
  73         .end = CNS3XXX_FLASH_BASE + SZ_128M - 1,
  74         .flags = IORESOURCE_MEM | IORESOURCE_MEM_32BIT,
  75 };
  76
  77 static struct platform_device cns3420_nor_pdev = {
  78         .name = "physmap-flash",
  79         .id = 0,
  80         .resource = &cns3420_nor_res,
  81         .num_resources = 1,
  82         .dev = {
  83                 .platform_data = &cns3420_nor_pdata,
  84         },
  85 };
  86
  87 /*
  88  * UART
  89  */
  90 static void __init cns3420_early_serial_setup(void)
  91 {
  92 #ifdef CONFIG_SERIAL_8250_CONSOLE
  93         static struct uart_port cns3420_serial_port = {
  94                 .membase        = (void __iomem *)CNS3XXX_UART0_BASE_VIRT,
  95                 .mapbase        = CNS3XXX_UART0_BASE,
  96                 .irq            = IRQ_CNS3XXX_UART0,
  97                 .iotype         = UPIO_MEM,
  98                 .flags          = UPF_BOOT_AUTOCONF | UPF_FIXED_TYPE,
  99                 .regshift       = 2,
 100                 .uartclk        = 24000000,
 101                 .line           = 0,
 102                 .type           = PORT_16550A,
 103                 .fifosize       = 16,
 104         };
 105
 106         early_serial_setup(&cns3420_serial_port);
 107 #endif
 108 }
 109
 110 /*
 111  * USB
 112  */
 113 static struct resource cns3xxx_usb_ehci_resources[] = {
 114         [0] = {
 115                 .start = CNS3XXX_USB_BASE,
 116                 .end   = CNS3XXX_USB_BASE + SZ_16M - 1,
 117                 .flags = IORESOURCE_MEM,
 118         },
 119         [1] = {
 120                 .start = IRQ_CNS3XXX_USB_EHCI,
 121                 .flags = IORESOURCE_IRQ,
 122         },
 123 };
 124
 125 static u64 cns3xxx_usb_ehci_dma_mask = DMA_BIT_MASK(32);
 126
 127 static struct platform_device cns3xxx_usb_ehci_device = {
 128         .name          = "cns3xxx-ehci",
 129         .num_resources = ARRAY_SIZE(cns3xxx_usb_ehci_resources),
 130         .resource      = cns3xxx_usb_ehci_resources,
 131         .dev           = {
 132                 .dma_mask          = &cns3xxx_usb_ehci_dma_mask,
 133                 .coherent_dma_mask = DMA_BIT_MASK(32),
 134         },
 135 };
 136
 137 static struct resource cns3xxx_usb_ohci_resources[] = {
 138         [0] = {
 139                 .start = CNS3XXX_USB_OHCI_BASE,
 140                 .end   = CNS3XXX_USB_OHCI_BASE + SZ_16M - 1,
 141                 .flags = IORESOURCE_MEM,
 142         },
 143         [1] = {
 144                 .start = IRQ_CNS3XXX_USB_OHCI,
 145                 .flags = IORESOURCE_IRQ,
 146         },
 147 };
 148
 149 static u64 cns3xxx_usb_ohci_dma_mask = DMA_BIT_MASK(32);
 150
 151 static struct platform_device cns3xxx_usb_ohci_device = {
 152         .name          = "cns3xxx-ohci",
 153         .num_resources = ARRAY_SIZE(cns3xxx_usb_ohci_resources),
 154         .resource      = cns3xxx_usb_ohci_resources,
 155         .dev           = {
 156                 .dma_mask          = &cns3xxx_usb_ohci_dma_mask,
 157                 .coherent_dma_mask = DMA_BIT_MASK(32),
 158         },
 159 };
 160
 161 /*
 162  * Initialization
 163  */
 164 static struct platform_device *cns3420_pdevs[] __initdata = {
 165         &cns3420_nor_pdev,
 166         &cns3xxx_usb_ehci_device,
 167         &cns3xxx_usb_ohci_device,
 168 };
 169
 170 static void __init cns3420_init(void)
 171 {
 172         cns3xxx_l2x0_init();
 173
 174         platform_add_devices(cns3420_pdevs, ARRAY_SIZE(cns3420_pdevs));
 175
 176         cns3xxx_ahci_init();
 177         cns3xxx_sdhci_init();
 178
 179         pm_power_off = cns3xxx_power_off;
 180 }
 181
 182 static struct map_desc cns3420_io_desc[] __initdata = {
 183         {
 184                 .virtual        = CNS3XXX_UART0_BASE_VIRT,
 185                 .pfn            = __phys_to_pfn(CNS3XXX_UART0_BASE),
 186                 .length         = SZ_4K,
 187                 .type           = MT_DEVICE,
 188         },
 189 };
 190
 191 static void __init cns3420_map_io(void)
 192 {
 193         cns3xxx_map_io();
 194         iotable_init(cns3420_io_desc, ARRAY_SIZE(cns3420_io_desc));
 195
 196         cns3420_early_serial_setup();
 197 }
 198
 199 MACHINE_START(CNS3420VB, "Cavium Networks CNS3420 Validation Board")
 200         .atag_offset    = 0x100,
 201         .map_io         = cns3420_map_io,
 202         .init_irq       = cns3xxx_init_irq,
 203         .timer          = &cns3xxx_timer,
 204         .init_machine   = cns3420_init,
 205 MACHINE_END