arch/arm/mach-loki/common.c

   1 /*
   2  * arch/arm/mach-loki/common.c
   3  *
   4  * Core functions for Marvell Loki (88RC8480) SoCs
   5  *
   6  * This file is licensed under the terms of the GNU General Public
   7  * License version 2.  This program is licensed "as is" without any
   8  * warranty of any kind, whether express or implied.
   9  */
  10
  11 #include <linux/kernel.h>
  12 #include <linux/init.h>
  13 #include <linux/platform_device.h>
  14 #include <linux/serial_8250.h>
  15 #include <linux/mbus.h>
  16 #include <linux/mv643xx_eth.h>
  17 #include <asm/page.h>
  18 #include <asm/timex.h>
  19 #include <asm/mach/map.h>
  20 #include <asm/mach/time.h>
  21 #include <mach/loki.h>
  22 #include <plat/orion_nand.h>
  23 #include <plat/time.h>
  24 #include "common.h"
  25
  26 /*****************************************************************************
  27  * I/O Address Mapping
  28  ****************************************************************************/
  29 static struct map_desc loki_io_desc[] __initdata = {
  30         {
  31                 .virtual        = LOKI_REGS_VIRT_BASE,
  32                 .pfn            = __phys_to_pfn(LOKI_REGS_PHYS_BASE),
  33                 .length         = LOKI_REGS_SIZE,
  34                 .type           = MT_DEVICE,
  35         },
  36 };
  37
  38 void __init loki_map_io(void)
  39 {
  40         iotable_init(loki_io_desc, ARRAY_SIZE(loki_io_desc));
  41 }
  42
  43
  44 /*****************************************************************************
  45  * GE0
  46  ****************************************************************************/
  47 struct mv643xx_eth_shared_platform_data loki_ge0_shared_data = {
  48         .t_clk          = LOKI_TCLK,
  49         .dram           = &loki_mbus_dram_info,
  50 };
  51
  52 static struct resource loki_ge0_shared_resources[] = {
  53         {
  54                 .name   = "ge0 base",
  55                 .start  = GE0_PHYS_BASE + 0x2000,
  56                 .end    = GE0_PHYS_BASE + 0x3fff,
  57                 .flags  = IORESOURCE_MEM,
  58         },
  59 };
  60
  61 static struct platform_device loki_ge0_shared = {
  62         .name           = MV643XX_ETH_SHARED_NAME,
  63         .id             = 0,
  64         .dev            = {
  65                 .platform_data  = &loki_ge0_shared_data,
  66         },
  67         .num_resources  = 1,
  68         .resource       = loki_ge0_shared_resources,
  69 };
  70
  71 static struct resource loki_ge0_resources[] = {
  72         {
  73                 .name   = "ge0 irq",
  74                 .start  = IRQ_LOKI_GBE_A_INT,
  75                 .end    = IRQ_LOKI_GBE_A_INT,
  76                 .flags  = IORESOURCE_IRQ,
  77         },
  78 };
  79
  80 static struct platform_device loki_ge0 = {
  81         .name           = MV643XX_ETH_NAME,
  82         .id             = 0,
  83         .num_resources  = 1,
  84         .resource       = loki_ge0_resources,
  85         .dev            = {
  86                 .coherent_dma_mask      = 0xffffffff,
  87         },
  88 };
  89
  90 void __init loki_ge0_init(struct mv643xx_eth_platform_data *eth_data)
  91 {
  92         eth_data->shared = &loki_ge0_shared;
  93         loki_ge0.dev.platform_data = eth_data;
  94
  95         writel(0x00079220, GE0_VIRT_BASE + 0x20b0);
  96         platform_device_register(&loki_ge0_shared);
  97         platform_device_register(&loki_ge0);
  98 }
  99
 100
 101 /*****************************************************************************
 102  * GE1
 103  ****************************************************************************/
 104 struct mv643xx_eth_shared_platform_data loki_ge1_shared_data = {
 105         .t_clk          = LOKI_TCLK,
 106         .dram           = &loki_mbus_dram_info,
 107 };
 108
 109 static struct resource loki_ge1_shared_resources[] = {
 110         {
 111                 .name   = "ge1 base",
 112                 .start  = GE1_PHYS_BASE + 0x2000,
 113                 .end    = GE1_PHYS_BASE + 0x3fff,
 114                 .flags  = IORESOURCE_MEM,
 115         },
 116 };
 117
 118 static struct platform_device loki_ge1_shared = {
 119         .name           = MV643XX_ETH_SHARED_NAME,
 120         .id             = 1,
 121         .dev            = {
 122                 .platform_data  = &loki_ge1_shared_data,
 123         },
 124         .num_resources  = 1,
 125         .resource       = loki_ge1_shared_resources,
 126 };
 127
 128 static struct resource loki_ge1_resources[] = {
 129         {
 130                 .name   = "ge1 irq",
 131                 .start  = IRQ_LOKI_GBE_B_INT,
 132                 .end    = IRQ_LOKI_GBE_B_INT,
 133                 .flags  = IORESOURCE_IRQ,
 134         },
 135 };
 136
 137 static struct platform_device loki_ge1 = {
 138         .name           = MV643XX_ETH_NAME,
 139         .id             = 1,
 140         .num_resources  = 1,
 141         .resource       = loki_ge1_resources,
 142         .dev            = {
 143                 .coherent_dma_mask      = 0xffffffff,
 144         },
 145 };
 146
 147 void __init loki_ge1_init(struct mv643xx_eth_platform_data *eth_data)
 148 {
 149         eth_data->shared = &loki_ge1_shared;
 150         loki_ge1.dev.platform_data = eth_data;
 151
 152         writel(0x00079220, GE1_VIRT_BASE + 0x20b0);
 153         platform_device_register(&loki_ge1_shared);
 154         platform_device_register(&loki_ge1);
 155 }
 156
 157
 158 /*****************************************************************************
 159  * SAS/SATA
 160  ****************************************************************************/
 161 static struct resource loki_sas_resources[] = {
 162         {
 163                 .name   = "mvsas0 mem",
 164                 .start  = SAS0_PHYS_BASE,
 165                 .end    = SAS0_PHYS_BASE + 0x01ff,
 166                 .flags  = IORESOURCE_MEM,
 167         }, {
 168                 .name   = "mvsas0 irq",
 169                 .start  = IRQ_LOKI_SAS_A,
 170                 .end    = IRQ_LOKI_SAS_A,
 171                 .flags  = IORESOURCE_IRQ,
 172         }, {
 173                 .name   = "mvsas1 mem",
 174                 .start  = SAS1_PHYS_BASE,
 175                 .end    = SAS1_PHYS_BASE + 0x01ff,
 176                 .flags  = IORESOURCE_MEM,
 177         }, {
 178                 .name   = "mvsas1 irq",
 179                 .start  = IRQ_LOKI_SAS_B,
 180                 .end    = IRQ_LOKI_SAS_B,
 181                 .flags  = IORESOURCE_IRQ,
 182         },
 183 };
 184
 185 static struct platform_device loki_sas = {
 186         .name           = "mvsas",
 187         .id             = 0,
 188         .dev            = {
 189                 .coherent_dma_mask      = 0xffffffff,
 190         },
 191         .num_resources  = ARRAY_SIZE(loki_sas_resources),
 192         .resource       = loki_sas_resources,
 193 };
 194
 195 void __init loki_sas_init(void)
 196 {
 197         writel(0x8300f707, DDR_REG(0x1424));
 198         platform_device_register(&loki_sas);
 199 }
 200
 201
 202 /*****************************************************************************
 203  * UART0
 204  ****************************************************************************/
 205 static struct plat_serial8250_port loki_uart0_data[] = {
 206         {
 207                 .mapbase        = UART0_PHYS_BASE,
 208                 .membase        = (char *)UART0_VIRT_BASE,
 209                 .irq            = IRQ_LOKI_UART0,
 210                 .flags          = UPF_SKIP_TEST | UPF_BOOT_AUTOCONF,
 211                 .iotype         = UPIO_MEM,
 212                 .regshift       = 2,
 213                 .uartclk        = LOKI_TCLK,
 214         }, {
 215         },
 216 };
 217
 218 static struct resource loki_uart0_resources[] = {
 219         {
 220                 .start          = UART0_PHYS_BASE,
 221                 .end            = UART0_PHYS_BASE + 0xff,
 222                 .flags          = IORESOURCE_MEM,
 223         }, {
 224                 .start          = IRQ_LOKI_UART0,
 225                 .end            = IRQ_LOKI_UART0,
 226                 .flags          = IORESOURCE_IRQ,
 227         },
 228 };
 229
 230 static struct platform_device loki_uart0 = {
 231         .name                   = "serial8250",
 232         .id                     = 0,
 233         .dev                    = {
 234                 .platform_data  = loki_uart0_data,
 235         },
 236         .resource               = loki_uart0_resources,
 237         .num_resources          = ARRAY_SIZE(loki_uart0_resources),
 238 };
 239
 240 void __init loki_uart0_init(void)
 241 {
 242         platform_device_register(&loki_uart0);
 243 }
 244
 245
 246 /*****************************************************************************
 247  * UART1
 248  ****************************************************************************/
 249 static struct plat_serial8250_port loki_uart1_data[] = {
 250         {
 251                 .mapbase        = UART1_PHYS_BASE,
 252                 .membase        = (char *)UART1_VIRT_BASE,
 253                 .irq            = IRQ_LOKI_UART1,
 254                 .flags          = UPF_SKIP_TEST | UPF_BOOT_AUTOCONF,
 255                 .iotype         = UPIO_MEM,
 256                 .regshift       = 2,
 257                 .uartclk        = LOKI_TCLK,
 258         }, {
 259         },
 260 };
 261
 262 static struct resource loki_uart1_resources[] = {
 263         {
 264                 .start          = UART1_PHYS_BASE,
 265                 .end            = UART1_PHYS_BASE + 0xff,
 266                 .flags          = IORESOURCE_MEM,
 267         }, {
 268                 .start          = IRQ_LOKI_UART1,
 269                 .end            = IRQ_LOKI_UART1,
 270                 .flags          = IORESOURCE_IRQ,
 271         },
 272 };
 273
 274 static struct platform_device loki_uart1 = {
 275         .name                   = "serial8250",
 276         .id                     = 1,
 277         .dev                    = {
 278                 .platform_data  = loki_uart1_data,
 279         },
 280         .resource               = loki_uart1_resources,
 281         .num_resources          = ARRAY_SIZE(loki_uart1_resources),
 282 };
 283
 284 void __init loki_uart1_init(void)
 285 {
 286         platform_device_register(&loki_uart1);
 287 }
 288
 289
 290 /*****************************************************************************
 291  * Time handling
 292  ****************************************************************************/
 293 static void loki_timer_init(void)
 294 {
 295         orion_time_init(IRQ_LOKI_BRIDGE, LOKI_TCLK);
 296 }
 297
 298 struct sys_timer loki_timer = {
 299         .init = loki_timer_init,
 300 };
 301
 302
 303 /*****************************************************************************
 304  * General
 305  ****************************************************************************/
 306 void __init loki_init(void)
 307 {
 308         printk(KERN_INFO "Loki ID: 88RC8480. TCLK=%d.\n", LOKI_TCLK);
 309
 310         loki_setup_cpu_mbus();
 311 }