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/hardware/gic.h>
  30 #include <asm/mach/arch.h>
  31 #include <asm/mach/map.h>
  32 #include <asm/mach/time.h>
  33 #include <mach/cns3xxx.h>
  34 #include <mach/irqs.h>
  35 #include "core.h"
  36 #include "devices.h"
  37
  38 /*
  39  * NOR Flash
  40  */
  41 static struct mtd_partition cns3420_nor_partitions[] = {
  42         {
  43                 .name           = "uboot",
  44                 .size           = 0x00040000,
  45                 .offset         = 0,
  46                 .mask_flags     = MTD_WRITEABLE,
  47         }, {
  48                 .name           = "kernel",
  49                 .size           = 0x004C0000,
  50                 .offset         = MTDPART_OFS_APPEND,
  51         }, {
  52                 .name           = "filesystem",
  53                 .size           = 0x7000000,
  54                 .offset         = MTDPART_OFS_APPEND,
  55         }, {
  56                 .name           = "filesystem2",
  57                 .size           = 0x0AE0000,
  58                 .offset         = MTDPART_OFS_APPEND,
  59         }, {
  60                 .name           = "ubootenv",
  61                 .size           = MTDPART_SIZ_FULL,
  62                 .offset         = MTDPART_OFS_APPEND,
  63         },
  64 };
  65
  66 static struct physmap_flash_data cns3420_nor_pdata = {
  67         .width = 2,
  68         .parts = cns3420_nor_partitions,
  69         .nr_parts = ARRAY_SIZE(cns3420_nor_partitions),
  70 };
  71
  72 static struct resource cns3420_nor_res = {
  73         .start = CNS3XXX_FLASH_BASE,
  74         .end = CNS3XXX_FLASH_BASE + SZ_128M - 1,
  75         .flags = IORESOURCE_MEM | IORESOURCE_MEM_32BIT,
  76 };
  77
  78 static struct platform_device cns3420_nor_pdev = {
  79         .name = "physmap-flash",
  80         .id = 0,
  81         .resource = &cns3420_nor_res,
  82         .num_resources = 1,
  83         .dev = {
  84                 .platform_data = &cns3420_nor_pdata,
  85         },
  86 };
  87
  88 /*
  89  * UART
  90  */
  91 static void __init cns3420_early_serial_setup(void)
  92 {
  93 #ifdef CONFIG_SERIAL_8250_CONSOLE
  94         static struct uart_port cns3420_serial_port = {
  95                 .membase        = (void __iomem *)CNS3XXX_UART0_BASE_VIRT,
  96                 .mapbase        = CNS3XXX_UART0_BASE,
  97                 .irq            = IRQ_CNS3XXX_UART0,
  98                 .iotype         = UPIO_MEM,
  99                 .flags          = UPF_BOOT_AUTOCONF | UPF_FIXED_TYPE,
 100                 .regshift       = 2,
 101                 .uartclk        = 24000000,
 102                 .line           = 0,
 103                 .type           = PORT_16550A,
 104                 .fifosize       = 16,
 105         };
 106
 107         early_serial_setup(&cns3420_serial_port);
 108 #endif
 109 }
 110
 111 /*
 112  * USB
 113  */
 114 static struct resource cns3xxx_usb_ehci_resources[] = {
 115         [0] = {
 116                 .start = CNS3XXX_USB_BASE,
 117                 .end   = CNS3XXX_USB_BASE + SZ_16M - 1,
 118                 .flags = IORESOURCE_MEM,
 119         },
 120         [1] = {
 121                 .start = IRQ_CNS3XXX_USB_EHCI,
 122                 .flags = IORESOURCE_IRQ,
 123         },
 124 };
 125
 126 static u64 cns3xxx_usb_ehci_dma_mask = DMA_BIT_MASK(32);
 127
 128 static struct platform_device cns3xxx_usb_ehci_device = {
 129         .name          = "cns3xxx-ehci",
 130         .num_resources = ARRAY_SIZE(cns3xxx_usb_ehci_resources),
 131         .resource      = cns3xxx_usb_ehci_resources,
 132         .dev           = {
 133                 .dma_mask          = &cns3xxx_usb_ehci_dma_mask,
 134                 .coherent_dma_mask = DMA_BIT_MASK(32),
 135         },
 136 };
 137
 138 static struct resource cns3xxx_usb_ohci_resources[] = {
 139         [0] = {
 140                 .start = CNS3XXX_USB_OHCI_BASE,
 141                 .end   = CNS3XXX_USB_OHCI_BASE + SZ_16M - 1,
 142                 .flags = IORESOURCE_MEM,
 143         },
 144         [1] = {
 145                 .start = IRQ_CNS3XXX_USB_OHCI,
 146                 .flags = IORESOURCE_IRQ,
 147         },
 148 };
 149
 150 static u64 cns3xxx_usb_ohci_dma_mask = DMA_BIT_MASK(32);
 151
 152 static struct platform_device cns3xxx_usb_ohci_device = {
 153         .name          = "cns3xxx-ohci",
 154         .num_resources = ARRAY_SIZE(cns3xxx_usb_ohci_resources),
 155         .resource      = cns3xxx_usb_ohci_resources,
 156         .dev           = {
 157                 .dma_mask          = &cns3xxx_usb_ohci_dma_mask,
 158                 .coherent_dma_mask = DMA_BIT_MASK(32),
 159         },
 160 };
 161
 162 /*
 163  * Initialization
 164  */
 165 static struct platform_device *cns3420_pdevs[] __initdata = {
 166         &cns3420_nor_pdev,
 167         &cns3xxx_usb_ehci_device,
 168         &cns3xxx_usb_ohci_device,
 169 };
 170
 171 static void __init cns3420_init(void)
 172 {
 173         cns3xxx_l2x0_init();
 174
 175         platform_add_devices(cns3420_pdevs, ARRAY_SIZE(cns3420_pdevs));
 176
 177         cns3xxx_ahci_init();
 178         cns3xxx_sdhci_init();
 179
 180         pm_power_off = cns3xxx_power_off;
 181 }
 182
 183 static struct map_desc cns3420_io_desc[] __initdata = {
 184         {
 185                 .virtual        = CNS3XXX_UART0_BASE_VIRT,
 186                 .pfn            = __phys_to_pfn(CNS3XXX_UART0_BASE),
 187                 .length         = SZ_4K,
 188                 .type           = MT_DEVICE,
 189         },
 190 };
 191
 192 static void __init cns3420_map_io(void)
 193 {
 194         cns3xxx_map_io();
 195         iotable_init(cns3420_io_desc, ARRAY_SIZE(cns3420_io_desc));
 196
 197         cns3420_early_serial_setup();
 198 }
 199
 200 MACHINE_START(CNS3420VB, "Cavium Networks CNS3420 Validation Board")
 201         .atag_offset    = 0x100,
 202         .map_io         = cns3420_map_io,
 203         .init_irq       = cns3xxx_init_irq,
 204         .timer          = &cns3xxx_timer,
 205         .handle_irq     = gic_handle_irq,
 206         .init_machine   = cns3420_init,
 207         .restart        = cns3xxx_restart,
 208 MACHINE_END