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/bridge-regs.h>
  22 #include <mach/loki.h>
  23 #include <plat/orion_nand.h>
  24 #include <plat/time.h>
  25 #include "common.h"
  26
  27 /*****************************************************************************
  28  * I/O Address Mapping
  29  ****************************************************************************/
  30 static struct map_desc loki_io_desc[] __initdata = {
  31         {
  32                 .virtual        = LOKI_REGS_VIRT_BASE,
  33                 .pfn            = __phys_to_pfn(LOKI_REGS_PHYS_BASE),
  34                 .length         = LOKI_REGS_SIZE,
  35                 .type           = MT_DEVICE,
  36         },
  37 };
  38
  39 void __init loki_map_io(void)
  40 {
  41         iotable_init(loki_io_desc, ARRAY_SIZE(loki_io_desc));
  42 }
  43
  44
  45 /*****************************************************************************
  46  * GE0
  47  ****************************************************************************/
  48 struct mv643xx_eth_shared_platform_data loki_ge0_shared_data = {
  49         .t_clk          = LOKI_TCLK,
  50         .dram           = &loki_mbus_dram_info,
  51 };
  52
  53 static struct resource loki_ge0_shared_resources[] = {
  54         {
  55                 .name   = "ge0 base",
  56                 .start  = GE0_PHYS_BASE + 0x2000,
  57                 .end    = GE0_PHYS_BASE + 0x3fff,
  58                 .flags  = IORESOURCE_MEM,
  59         },
  60 };
  61
  62 static struct platform_device loki_ge0_shared = {
  63         .name           = MV643XX_ETH_SHARED_NAME,
  64         .id             = 0,
  65         .dev            = {
  66                 .platform_data  = &loki_ge0_shared_data,
  67         },
  68         .num_resources  = 1,
  69         .resource       = loki_ge0_shared_resources,
  70 };
  71
  72 static struct resource loki_ge0_resources[] = {
  73         {
  74                 .name   = "ge0 irq",
  75                 .start  = IRQ_LOKI_GBE_A_INT,
  76                 .end    = IRQ_LOKI_GBE_A_INT,
  77                 .flags  = IORESOURCE_IRQ,
  78         },
  79 };
  80
  81 static struct platform_device loki_ge0 = {
  82         .name           = MV643XX_ETH_NAME,
  83         .id             = 0,
  84         .num_resources  = 1,
  85         .resource       = loki_ge0_resources,
  86         .dev            = {
  87                 .coherent_dma_mask      = 0xffffffff,
  88         },
  89 };
  90
  91 void __init loki_ge0_init(struct mv643xx_eth_platform_data *eth_data)
  92 {
  93         eth_data->shared = &loki_ge0_shared;
  94         loki_ge0.dev.platform_data = eth_data;
  95
  96         writel(0x00079220, GE0_VIRT_BASE + 0x20b0);
  97         platform_device_register(&loki_ge0_shared);
  98         platform_device_register(&loki_ge0);
  99 }
 100
 101
 102 /*****************************************************************************
 103  * GE1
 104  ****************************************************************************/
 105 struct mv643xx_eth_shared_platform_data loki_ge1_shared_data = {
 106         .t_clk          = LOKI_TCLK,
 107         .dram           = &loki_mbus_dram_info,
 108 };
 109
 110 static struct resource loki_ge1_shared_resources[] = {
 111         {
 112                 .name   = "ge1 base",
 113                 .start  = GE1_PHYS_BASE + 0x2000,
 114                 .end    = GE1_PHYS_BASE + 0x3fff,
 115                 .flags  = IORESOURCE_MEM,
 116         },
 117 };
 118
 119 static struct platform_device loki_ge1_shared = {
 120         .name           = MV643XX_ETH_SHARED_NAME,
 121         .id             = 1,
 122         .dev            = {
 123                 .platform_data  = &loki_ge1_shared_data,
 124         },
 125         .num_resources  = 1,
 126         .resource       = loki_ge1_shared_resources,
 127 };
 128
 129 static struct resource loki_ge1_resources[] = {
 130         {
 131                 .name   = "ge1 irq",
 132                 .start  = IRQ_LOKI_GBE_B_INT,
 133                 .end    = IRQ_LOKI_GBE_B_INT,
 134                 .flags  = IORESOURCE_IRQ,
 135         },
 136 };
 137
 138 static struct platform_device loki_ge1 = {
 139         .name           = MV643XX_ETH_NAME,
 140         .id             = 1,
 141         .num_resources  = 1,
 142         .resource       = loki_ge1_resources,
 143         .dev            = {
 144                 .coherent_dma_mask      = 0xffffffff,
 145         },
 146 };
 147
 148 void __init loki_ge1_init(struct mv643xx_eth_platform_data *eth_data)
 149 {
 150         eth_data->shared = &loki_ge1_shared;
 151         loki_ge1.dev.platform_data = eth_data;
 152
 153         writel(0x00079220, GE1_VIRT_BASE + 0x20b0);
 154         platform_device_register(&loki_ge1_shared);
 155         platform_device_register(&loki_ge1);
 156 }
 157
 158
 159 /*****************************************************************************
 160  * SAS/SATA
 161  ****************************************************************************/
 162 static struct resource loki_sas_resources[] = {
 163         {
 164                 .name   = "mvsas0 mem",
 165                 .start  = SAS0_PHYS_BASE,
 166                 .end    = SAS0_PHYS_BASE + 0x01ff,
 167                 .flags  = IORESOURCE_MEM,
 168         }, {
 169                 .name   = "mvsas0 irq",
 170                 .start  = IRQ_LOKI_SAS_A,
 171                 .end    = IRQ_LOKI_SAS_A,
 172                 .flags  = IORESOURCE_IRQ,
 173         }, {
 174                 .name   = "mvsas1 mem",
 175                 .start  = SAS1_PHYS_BASE,
 176                 .end    = SAS1_PHYS_BASE + 0x01ff,
 177                 .flags  = IORESOURCE_MEM,
 178         }, {
 179                 .name   = "mvsas1 irq",
 180                 .start  = IRQ_LOKI_SAS_B,
 181                 .end    = IRQ_LOKI_SAS_B,
 182                 .flags  = IORESOURCE_IRQ,
 183         },
 184 };
 185
 186 static struct platform_device loki_sas = {
 187         .name           = "mvsas",
 188         .id             = 0,
 189         .dev            = {
 190                 .coherent_dma_mask      = 0xffffffff,
 191         },
 192         .num_resources  = ARRAY_SIZE(loki_sas_resources),
 193         .resource       = loki_sas_resources,
 194 };
 195
 196 void __init loki_sas_init(void)
 197 {
 198         writel(0x8300f707, DDR_REG(0x1424));
 199         platform_device_register(&loki_sas);
 200 }
 201
 202
 203 /*****************************************************************************
 204  * UART0
 205  ****************************************************************************/
 206 static struct plat_serial8250_port loki_uart0_data[] = {
 207         {
 208                 .mapbase        = UART0_PHYS_BASE,
 209                 .membase        = (char *)UART0_VIRT_BASE,
 210                 .irq            = IRQ_LOKI_UART0,
 211                 .flags          = UPF_SKIP_TEST | UPF_BOOT_AUTOCONF,
 212                 .iotype         = UPIO_MEM,
 213                 .regshift       = 2,
 214                 .uartclk        = LOKI_TCLK,
 215         }, {
 216         },
 217 };
 218
 219 static struct resource loki_uart0_resources[] = {
 220         {
 221                 .start          = UART0_PHYS_BASE,
 222                 .end            = UART0_PHYS_BASE + 0xff,
 223                 .flags          = IORESOURCE_MEM,
 224         }, {
 225                 .start          = IRQ_LOKI_UART0,
 226                 .end            = IRQ_LOKI_UART0,
 227                 .flags          = IORESOURCE_IRQ,
 228         },
 229 };
 230
 231 static struct platform_device loki_uart0 = {
 232         .name                   = "serial8250",
 233         .id                     = 0,
 234         .dev                    = {
 235                 .platform_data  = loki_uart0_data,
 236         },
 237         .resource               = loki_uart0_resources,
 238         .num_resources          = ARRAY_SIZE(loki_uart0_resources),
 239 };
 240
 241 void __init loki_uart0_init(void)
 242 {
 243         platform_device_register(&loki_uart0);
 244 }
 245
 246
 247 /*****************************************************************************
 248  * UART1
 249  ****************************************************************************/
 250 static struct plat_serial8250_port loki_uart1_data[] = {
 251         {
 252                 .mapbase        = UART1_PHYS_BASE,
 253                 .membase        = (char *)UART1_VIRT_BASE,
 254                 .irq            = IRQ_LOKI_UART1,
 255                 .flags          = UPF_SKIP_TEST | UPF_BOOT_AUTOCONF,
 256                 .iotype         = UPIO_MEM,
 257                 .regshift       = 2,
 258                 .uartclk        = LOKI_TCLK,
 259         }, {
 260         },
 261 };
 262
 263 static struct resource loki_uart1_resources[] = {
 264         {
 265                 .start          = UART1_PHYS_BASE,
 266                 .end            = UART1_PHYS_BASE + 0xff,
 267                 .flags          = IORESOURCE_MEM,
 268         }, {
 269                 .start          = IRQ_LOKI_UART1,
 270                 .end            = IRQ_LOKI_UART1,
 271                 .flags          = IORESOURCE_IRQ,
 272         },
 273 };
 274
 275 static struct platform_device loki_uart1 = {
 276         .name                   = "serial8250",
 277         .id                     = 1,
 278         .dev                    = {
 279                 .platform_data  = loki_uart1_data,
 280         },
 281         .resource               = loki_uart1_resources,
 282         .num_resources          = ARRAY_SIZE(loki_uart1_resources),
 283 };
 284
 285 void __init loki_uart1_init(void)
 286 {
 287         platform_device_register(&loki_uart1);
 288 }
 289
 290
 291 /*****************************************************************************
 292  * Time handling
 293  ****************************************************************************/
 294 void __init loki_init_early(void)
 295 {
 296         orion_time_set_base(TIMER_VIRT_BASE);
 297 }
 298
 299 static void loki_timer_init(void)
 300 {
 301         orion_time_init(BRIDGE_VIRT_BASE, BRIDGE_INT_TIMER1_CLR,
 302                         IRQ_LOKI_BRIDGE, LOKI_TCLK);
 303 }
 304
 305 struct sys_timer loki_timer = {
 306         .init = loki_timer_init,
 307 };
 308
 309
 310 /*****************************************************************************
 311  * General
 312  ****************************************************************************/
 313 void __init loki_init(void)
 314 {
 315         printk(KERN_INFO "Loki ID: 88RC8480. TCLK=%d.\n", LOKI_TCLK);
 316
 317         loki_setup_cpu_mbus();
 318 }