kernel/arch/mips/mti-sead3/sead3-platform.c

   1 /*
   2  * This file is subject to the terms and conditions of the GNU General Public
   3  * License.  See the file "COPYING" in the main directory of this archive
   4  * for more details.
   5  *
   6  * Copyright (C) 2012 MIPS Technologies, Inc.  All rights reserved.
   7  */
   8 #include <linux/dma-mapping.h>
   9 #include <linux/init.h>
  10 #include <linux/irq.h>
  11 #include <linux/irqchip/mips-gic.h>
  12 #include <linux/leds.h>
  13 #include <linux/mtd/physmap.h>
  14 #include <linux/platform_device.h>
  15 #include <linux/serial_8250.h>
  16 #include <linux/smsc911x.h>
  17
  18 #include <asm/mips-boards/sead3int.h>
  19
  20 #define UART(base)                                                      \
  21 {                                                                       \
  22         .mapbase        = base,                                         \
  23         .irq            = -1,                                           \
  24         .uartclk        = 14745600,                                     \
  25         .iotype         = UPIO_MEM32,                                   \
  26         .flags          = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST | UPF_IOREMAP, \
  27         .regshift       = 2,                                            \
  28 }
  29
  30 static struct plat_serial8250_port uart8250_data[] = {
  31         UART(0x1f000900),   /* ttyS0 = USB   */
  32         UART(0x1f000800),   /* ttyS1 = RS232 */
  33         { },
  34 };
  35
  36 static struct platform_device uart8250_device = {
  37         .name                   = "serial8250",
  38         .id                     = PLAT8250_DEV_PLATFORM2,
  39         .dev                    = {
  40                 .platform_data  = uart8250_data,
  41         },
  42 };
  43
  44 static struct smsc911x_platform_config sead3_smsc911x_data = {
  45         .irq_polarity   = SMSC911X_IRQ_POLARITY_ACTIVE_LOW,
  46         .irq_type       = SMSC911X_IRQ_TYPE_PUSH_PULL,
  47         .flags          = SMSC911X_USE_32BIT | SMSC911X_SAVE_MAC_ADDRESS,
  48         .phy_interface  = PHY_INTERFACE_MODE_MII,
  49 };
  50
  51 static struct resource sead3_net_resources[] = {
  52         {
  53                 .start                  = 0x1f010000,
  54                 .end                    = 0x1f01ffff,
  55                 .flags                  = IORESOURCE_MEM
  56         }, {
  57                 .flags                  = IORESOURCE_IRQ
  58         }
  59 };
  60
  61 static struct platform_device sead3_net_device = {
  62         .name                   = "smsc911x",
  63         .id                     = 0,
  64         .dev                    = {
  65                 .platform_data  = &sead3_smsc911x_data,
  66         },
  67         .num_resources          = ARRAY_SIZE(sead3_net_resources),
  68         .resource               = sead3_net_resources
  69 };
  70
  71 static struct mtd_partition sead3_mtd_partitions[] = {
  72         {
  73                 .name =         "User FS",
  74                 .offset =       0x00000000,
  75                 .size =         0x01fc0000,
  76         }, {
  77                 .name =         "Board Config",
  78                 .offset =       0x01fc0000,
  79                 .size =         0x00040000,
  80                 .mask_flags =   MTD_WRITEABLE
  81         },
  82 };
  83
  84 static struct physmap_flash_data sead3_flash_data = {
  85         .width          = 4,
  86         .nr_parts       = ARRAY_SIZE(sead3_mtd_partitions),
  87         .parts          = sead3_mtd_partitions
  88 };
  89
  90 static struct resource sead3_flash_resource = {
  91         .start          = 0x1c000000,
  92         .end            = 0x1dffffff,
  93         .flags          = IORESOURCE_MEM
  94 };
  95
  96 static struct platform_device sead3_flash = {
  97         .name           = "physmap-flash",
  98         .id             = 0,
  99         .dev            = {
 100                 .platform_data  = &sead3_flash_data,
 101         },
 102         .num_resources  = 1,
 103         .resource       = &sead3_flash_resource,
 104 };
 105
 106 #define LEDFLAGS(bits, shift)           \
 107         ((bits << 8) | (shift << 8))
 108
 109 #define LEDBITS(id, shift, bits)        \
 110         .name = id #shift,              \
 111         .flags = LEDFLAGS(bits, shift)
 112
 113 static struct led_info led_data_info[] = {
 114         { LEDBITS("bit", 0, 1) },
 115         { LEDBITS("bit", 1, 1) },
 116         { LEDBITS("bit", 2, 1) },
 117         { LEDBITS("bit", 3, 1) },
 118         { LEDBITS("bit", 4, 1) },
 119         { LEDBITS("bit", 5, 1) },
 120         { LEDBITS("bit", 6, 1) },
 121         { LEDBITS("bit", 7, 1) },
 122         { LEDBITS("all", 0, 8) },
 123 };
 124
 125 static struct led_platform_data led_data = {
 126         .num_leds       = ARRAY_SIZE(led_data_info),
 127         .leds           = led_data_info
 128 };
 129
 130 static struct resource pled_resources[] = {
 131         {
 132                 .start  = 0x1f000210,
 133                 .end    = 0x1f000217,
 134                 .flags  = IORESOURCE_MEM
 135         }
 136 };
 137
 138 static struct platform_device pled_device = {
 139         .name                   = "sead3::pled",
 140         .id                     = 0,
 141         .dev                    = {
 142                 .platform_data  = &led_data,
 143         },
 144         .num_resources          = ARRAY_SIZE(pled_resources),
 145         .resource               = pled_resources
 146 };
 147
 148
 149 static struct resource fled_resources[] = {
 150         {
 151                 .start                  = 0x1f000218,
 152                 .end                    = 0x1f00021f,
 153                 .flags                  = IORESOURCE_MEM
 154         }
 155 };
 156
 157 static struct platform_device fled_device = {
 158         .name                   = "sead3::fled",
 159         .id                     = 0,
 160         .dev                    = {
 161                 .platform_data  = &led_data,
 162         },
 163         .num_resources          = ARRAY_SIZE(fled_resources),
 164         .resource               = fled_resources
 165 };
 166
 167 static struct platform_device sead3_led_device = {
 168         .name   = "sead3-led",
 169         .id     = -1,
 170 };
 171
 172 static struct resource ehci_resources[] = {
 173         {
 174                 .start                  = 0x1b200000,
 175                 .end                    = 0x1b200fff,
 176                 .flags                  = IORESOURCE_MEM
 177         }, {
 178                 .flags                  = IORESOURCE_IRQ
 179         }
 180 };
 181
 182 static u64 sead3_usbdev_dma_mask = DMA_BIT_MASK(32);
 183
 184 static struct platform_device ehci_device = {
 185         .name           = "sead3-ehci",
 186         .id             = 0,
 187         .dev            = {
 188                 .dma_mask               = &sead3_usbdev_dma_mask,
 189                 .coherent_dma_mask      = DMA_BIT_MASK(32)
 190         },
 191         .num_resources  = ARRAY_SIZE(ehci_resources),
 192         .resource       = ehci_resources
 193 };
 194
 195 static struct platform_device *sead3_platform_devices[] __initdata = {
 196         &uart8250_device,
 197         &sead3_flash,
 198         &pled_device,
 199         &fled_device,
 200         &sead3_led_device,
 201         &ehci_device,
 202         &sead3_net_device,
 203 };
 204
 205 static int __init sead3_platforms_device_init(void)
 206 {
 207         if (gic_present) {
 208                 uart8250_data[0].irq = MIPS_GIC_IRQ_BASE + GIC_INT_UART0;
 209                 uart8250_data[1].irq = MIPS_GIC_IRQ_BASE + GIC_INT_UART1;
 210                 ehci_resources[1].start = MIPS_GIC_IRQ_BASE + GIC_INT_EHCI;
 211                 sead3_net_resources[1].start = MIPS_GIC_IRQ_BASE + GIC_INT_NET;
 212         } else {
 213                 uart8250_data[0].irq = MIPS_CPU_IRQ_BASE + CPU_INT_UART0;
 214                 uart8250_data[1].irq = MIPS_CPU_IRQ_BASE + CPU_INT_UART1;
 215                 ehci_resources[1].start = MIPS_CPU_IRQ_BASE + CPU_INT_EHCI;
 216                 sead3_net_resources[1].start = MIPS_CPU_IRQ_BASE + CPU_INT_NET;
 217         }
 218
 219         return platform_add_devices(sead3_platform_devices,
 220                                     ARRAY_SIZE(sead3_platform_devices));
 221 }
 222
 223 device_initcall(sead3_platforms_device_init);