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 <asm/arch/loki.h>
  22 #include <asm/plat-orion/orion_nand.h>
  23 #include <asm/plat-orion/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 };
  86
  87 void __init loki_ge0_init(struct mv643xx_eth_platform_data *eth_data)
  88 {
  89         eth_data->shared = &loki_ge0_shared;
  90         loki_ge0.dev.platform_data = eth_data;
  91
  92         writel(0x00079220, GE0_VIRT_BASE + 0x20b0);
  93         platform_device_register(&loki_ge0_shared);
  94         platform_device_register(&loki_ge0);
  95 }
  96
  97
  98 /*****************************************************************************
  99  * GE1
 100  ****************************************************************************/
 101 struct mv643xx_eth_shared_platform_data loki_ge1_shared_data = {
 102         .t_clk          = LOKI_TCLK,
 103         .dram           = &loki_mbus_dram_info,
 104 };
 105
 106 static struct resource loki_ge1_shared_resources[] = {
 107         {
 108                 .name   = "ge1 base",
 109                 .start  = GE1_PHYS_BASE + 0x2000,
 110                 .end    = GE1_PHYS_BASE + 0x3fff,
 111                 .flags  = IORESOURCE_MEM,
 112         },
 113 };
 114
 115 static struct platform_device loki_ge1_shared = {
 116         .name           = MV643XX_ETH_SHARED_NAME,
 117         .id             = 1,
 118         .dev            = {
 119                 .platform_data  = &loki_ge1_shared_data,
 120         },
 121         .num_resources  = 1,
 122         .resource       = loki_ge1_shared_resources,
 123 };
 124
 125 static struct resource loki_ge1_resources[] = {
 126         {
 127                 .name   = "ge1 irq",
 128                 .start  = IRQ_LOKI_GBE_B_INT,
 129                 .end    = IRQ_LOKI_GBE_B_INT,
 130                 .flags  = IORESOURCE_IRQ,
 131         },
 132 };
 133
 134 static struct platform_device loki_ge1 = {
 135         .name           = MV643XX_ETH_NAME,
 136         .id             = 1,
 137         .num_resources  = 1,
 138         .resource       = loki_ge1_resources,
 139 };
 140
 141 void __init loki_ge1_init(struct mv643xx_eth_platform_data *eth_data)
 142 {
 143         eth_data->shared = &loki_ge1_shared;
 144         loki_ge1.dev.platform_data = eth_data;
 145
 146         writel(0x00079220, GE1_VIRT_BASE + 0x20b0);
 147         platform_device_register(&loki_ge1_shared);
 148         platform_device_register(&loki_ge1);
 149 }
 150
 151
 152 /*****************************************************************************
 153  * SAS/SATA
 154  ****************************************************************************/
 155 static struct resource loki_sas_resources[] = {
 156         {
 157                 .name   = "mvsas0 mem",
 158                 .start  = SAS0_PHYS_BASE,
 159                 .end    = SAS0_PHYS_BASE + 0x01ff,
 160                 .flags  = IORESOURCE_MEM,
 161         }, {
 162                 .name   = "mvsas0 irq",
 163                 .start  = IRQ_LOKI_SAS_A,
 164                 .end    = IRQ_LOKI_SAS_A,
 165                 .flags  = IORESOURCE_IRQ,
 166         }, {
 167                 .name   = "mvsas1 mem",
 168                 .start  = SAS1_PHYS_BASE,
 169                 .end    = SAS1_PHYS_BASE + 0x01ff,
 170                 .flags  = IORESOURCE_MEM,
 171         }, {
 172                 .name   = "mvsas1 irq",
 173                 .start  = IRQ_LOKI_SAS_B,
 174                 .end    = IRQ_LOKI_SAS_B,
 175                 .flags  = IORESOURCE_IRQ,
 176         },
 177 };
 178
 179 static struct platform_device loki_sas = {
 180         .name           = "mvsas",
 181         .id             = 0,
 182         .dev            = {
 183                 .coherent_dma_mask      = 0xffffffff,
 184         },
 185         .num_resources  = ARRAY_SIZE(loki_sas_resources),
 186         .resource       = loki_sas_resources,
 187 };
 188
 189 void __init loki_sas_init(void)
 190 {
 191         writel(0x8300f707, DDR_REG(0x1424));
 192         platform_device_register(&loki_sas);
 193 }
 194
 195
 196 /*****************************************************************************
 197  * UART0
 198  ****************************************************************************/
 199 static struct plat_serial8250_port loki_uart0_data[] = {
 200         {
 201                 .mapbase        = UART0_PHYS_BASE,
 202                 .membase        = (char *)UART0_VIRT_BASE,
 203                 .irq            = IRQ_LOKI_UART0,
 204                 .flags          = UPF_SKIP_TEST | UPF_BOOT_AUTOCONF,
 205                 .iotype         = UPIO_MEM,
 206                 .regshift       = 2,
 207                 .uartclk        = LOKI_TCLK,
 208         }, {
 209         },
 210 };
 211
 212 static struct resource loki_uart0_resources[] = {
 213         {
 214                 .start          = UART0_PHYS_BASE,
 215                 .end            = UART0_PHYS_BASE + 0xff,
 216                 .flags          = IORESOURCE_MEM,
 217         }, {
 218                 .start          = IRQ_LOKI_UART0,
 219                 .end            = IRQ_LOKI_UART0,
 220                 .flags          = IORESOURCE_IRQ,
 221         },
 222 };
 223
 224 static struct platform_device loki_uart0 = {
 225         .name                   = "serial8250",
 226         .id                     = 0,
 227         .dev                    = {
 228                 .platform_data  = loki_uart0_data,
 229         },
 230         .resource               = loki_uart0_resources,
 231         .num_resources          = ARRAY_SIZE(loki_uart0_resources),
 232 };
 233
 234 void __init loki_uart0_init(void)
 235 {
 236         platform_device_register(&loki_uart0);
 237 }
 238
 239
 240 /*****************************************************************************
 241  * UART1
 242  ****************************************************************************/
 243 static struct plat_serial8250_port loki_uart1_data[] = {
 244         {
 245                 .mapbase        = UART1_PHYS_BASE,
 246                 .membase        = (char *)UART1_VIRT_BASE,
 247                 .irq            = IRQ_LOKI_UART1,
 248                 .flags          = UPF_SKIP_TEST | UPF_BOOT_AUTOCONF,
 249                 .iotype         = UPIO_MEM,
 250                 .regshift       = 2,
 251                 .uartclk        = LOKI_TCLK,
 252         }, {
 253         },
 254 };
 255
 256 static struct resource loki_uart1_resources[] = {
 257         {
 258                 .start          = UART1_PHYS_BASE,
 259                 .end            = UART1_PHYS_BASE + 0xff,
 260                 .flags          = IORESOURCE_MEM,
 261         }, {
 262                 .start          = IRQ_LOKI_UART1,
 263                 .end            = IRQ_LOKI_UART1,
 264                 .flags          = IORESOURCE_IRQ,
 265         },
 266 };
 267
 268 static struct platform_device loki_uart1 = {
 269         .name                   = "serial8250",
 270         .id                     = 1,
 271         .dev                    = {
 272                 .platform_data  = loki_uart1_data,
 273         },
 274         .resource               = loki_uart1_resources,
 275         .num_resources          = ARRAY_SIZE(loki_uart1_resources),
 276 };
 277
 278 void __init loki_uart1_init(void)
 279 {
 280         platform_device_register(&loki_uart1);
 281 }
 282
 283
 284 /*****************************************************************************
 285  * Time handling
 286  ****************************************************************************/
 287 static void loki_timer_init(void)
 288 {
 289         orion_time_init(IRQ_LOKI_BRIDGE, LOKI_TCLK);
 290 }
 291
 292 struct sys_timer loki_timer = {
 293         .init = loki_timer_init,
 294 };
 295
 296
 297 /*****************************************************************************
 298  * General
 299  ****************************************************************************/
 300 void __init loki_init(void)
 301 {
 302         printk(KERN_INFO "Loki ID: 88RC8480. TCLK=%d.\n", LOKI_TCLK);
 303
 304         loki_setup_cpu_mbus();
 305 }