release/src-rt-6.x.4708/linux/linux-2.6.36/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/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 #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  * Initialization
 112  */
 113 static struct platform_device *cns3420_pdevs[] __initdata = {
 114         &cns3420_nor_pdev,
 115 };
 116
 117 static void __init cns3420_init(void)
 118 {
 119         platform_add_devices(cns3420_pdevs, ARRAY_SIZE(cns3420_pdevs));
 120
 121         cns3xxx_ahci_init();
 122         cns3xxx_sdhci_init();
 123
 124         pm_power_off = cns3xxx_power_off;
 125 }
 126
 127 static struct map_desc cns3420_io_desc[] __initdata = {
 128         {
 129                 .virtual        = CNS3XXX_UART0_BASE_VIRT,
 130                 .pfn            = __phys_to_pfn(CNS3XXX_UART0_BASE),
 131                 .length         = SZ_4K,
 132                 .type           = MT_DEVICE,
 133         },
 134 };
 135
 136 static void __init cns3420_map_io(void)
 137 {
 138         cns3xxx_map_io();
 139         iotable_init(cns3420_io_desc, ARRAY_SIZE(cns3420_io_desc));
 140
 141         cns3420_early_serial_setup();
 142 }
 143
 144 MACHINE_START(CNS3420VB, "Cavium Networks CNS3420 Validation Board")
 145         .phys_io        = CNS3XXX_UART0_BASE,
 146         .io_pg_offst    = (CNS3XXX_UART0_BASE_VIRT >> 18) & 0xfffc,
 147         .boot_params    = 0x00000100,
 148         .map_io         = cns3420_map_io,
 149         .init_irq       = cns3xxx_init_irq,
 150         .timer          = &cns3xxx_timer,
 151         .init_machine   = cns3420_init,
 152 MACHINE_END