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 <linux/dma-mapping.h>
  18 #include <asm/page.h>
  19 #include <asm/timex.h>
  20 #include <asm/mach/map.h>
  21 #include <asm/mach/time.h>
  22 #include <mach/bridge-regs.h>
  23 #include <mach/loki.h>
  24 #include <plat/orion_nand.h>
  25 #include <plat/time.h>
  26 #include <plat/common.h>
  27 #include "common.h"
  28
  29 /*****************************************************************************
  30  * I/O Address Mapping
  31  ****************************************************************************/
  32 static struct map_desc loki_io_desc[] __initdata = {
  33         {
  34                 .virtual        = LOKI_REGS_VIRT_BASE,
  35                 .pfn            = __phys_to_pfn(LOKI_REGS_PHYS_BASE),
  36                 .length         = LOKI_REGS_SIZE,
  37                 .type           = MT_DEVICE,
  38         },
  39 };
  40
  41 void __init loki_map_io(void)
  42 {
  43         iotable_init(loki_io_desc, ARRAY_SIZE(loki_io_desc));
  44 }
  45
  46
  47 /*****************************************************************************
  48  * GE0
  49  ****************************************************************************/
  50 struct mv643xx_eth_shared_platform_data loki_ge0_shared_data = {
  51         .t_clk          = LOKI_TCLK,
  52         .dram           = &loki_mbus_dram_info,
  53 };
  54
  55 static struct resource loki_ge0_shared_resources[] = {
  56         {
  57                 .name   = "ge0 base",
  58                 .start  = GE0_PHYS_BASE + 0x2000,
  59                 .end    = GE0_PHYS_BASE + SZ_16K - 1,
  60                 .flags  = IORESOURCE_MEM,
  61         },
  62 };
  63
  64 static struct platform_device loki_ge0_shared = {
  65         .name           = MV643XX_ETH_SHARED_NAME,
  66         .id             = 0,
  67         .dev            = {
  68                 .platform_data  = &loki_ge0_shared_data,
  69         },
  70         .num_resources  = 1,
  71         .resource       = loki_ge0_shared_resources,
  72 };
  73
  74 static struct resource loki_ge0_resources[] = {
  75         {
  76                 .name   = "ge0 irq",
  77                 .start  = IRQ_LOKI_GBE_A_INT,
  78                 .end    = IRQ_LOKI_GBE_A_INT,
  79                 .flags  = IORESOURCE_IRQ,
  80         },
  81 };
  82
  83 static struct platform_device loki_ge0 = {
  84         .name           = MV643XX_ETH_NAME,
  85         .id             = 0,
  86         .num_resources  = 1,
  87         .resource       = loki_ge0_resources,
  88         .dev            = {
  89                 .coherent_dma_mask      = DMA_BIT_MASK(32),
  90         },
  91 };
  92
  93 void __init loki_ge0_init(struct mv643xx_eth_platform_data *eth_data)
  94 {
  95         eth_data->shared = &loki_ge0_shared;
  96         loki_ge0.dev.platform_data = eth_data;
  97
  98         writel(0x00079220, GE0_VIRT_BASE + 0x20b0);
  99         platform_device_register(&loki_ge0_shared);
 100         platform_device_register(&loki_ge0);
 101 }
 102
 103
 104 /*****************************************************************************
 105  * GE1
 106  ****************************************************************************/
 107 struct mv643xx_eth_shared_platform_data loki_ge1_shared_data = {
 108         .t_clk          = LOKI_TCLK,
 109         .dram           = &loki_mbus_dram_info,
 110 };
 111
 112 static struct resource loki_ge1_shared_resources[] = {
 113         {
 114                 .name   = "ge1 base",
 115                 .start  = GE1_PHYS_BASE + 0x2000,
 116                 .end    = GE1_PHYS_BASE + SZ_16K - 1,
 117                 .flags  = IORESOURCE_MEM,
 118         },
 119 };
 120
 121 static struct platform_device loki_ge1_shared = {
 122         .name           = MV643XX_ETH_SHARED_NAME,
 123         .id             = 1,
 124         .dev            = {
 125                 .platform_data  = &loki_ge1_shared_data,
 126         },
 127         .num_resources  = 1,
 128         .resource       = loki_ge1_shared_resources,
 129 };
 130
 131 static struct resource loki_ge1_resources[] = {
 132         {
 133                 .name   = "ge1 irq",
 134                 .start  = IRQ_LOKI_GBE_B_INT,
 135                 .end    = IRQ_LOKI_GBE_B_INT,
 136                 .flags  = IORESOURCE_IRQ,
 137         },
 138 };
 139
 140 static struct platform_device loki_ge1 = {
 141         .name           = MV643XX_ETH_NAME,
 142         .id             = 1,
 143         .num_resources  = 1,
 144         .resource       = loki_ge1_resources,
 145         .dev            = {
 146                 .coherent_dma_mask      = DMA_BIT_MASK(32),
 147         },
 148 };
 149
 150 void __init loki_ge1_init(struct mv643xx_eth_platform_data *eth_data)
 151 {
 152         eth_data->shared = &loki_ge1_shared;
 153         loki_ge1.dev.platform_data = eth_data;
 154
 155         writel(0x00079220, GE1_VIRT_BASE + 0x20b0);
 156         platform_device_register(&loki_ge1_shared);
 157         platform_device_register(&loki_ge1);
 158 }
 159
 160
 161 /*****************************************************************************
 162  * SAS/SATA
 163  ****************************************************************************/
 164 static struct resource loki_sas_resources[] = {
 165         {
 166                 .name   = "mvsas0 mem",
 167                 .start  = SAS0_PHYS_BASE,
 168                 .end    = SAS0_PHYS_BASE + 0x01ff,
 169                 .flags  = IORESOURCE_MEM,
 170         }, {
 171                 .name   = "mvsas0 irq",
 172                 .start  = IRQ_LOKI_SAS_A,
 173                 .end    = IRQ_LOKI_SAS_A,
 174                 .flags  = IORESOURCE_IRQ,
 175         }, {
 176                 .name   = "mvsas1 mem",
 177                 .start  = SAS1_PHYS_BASE,
 178                 .end    = SAS1_PHYS_BASE + 0x01ff,
 179                 .flags  = IORESOURCE_MEM,
 180         }, {
 181                 .name   = "mvsas1 irq",
 182                 .start  = IRQ_LOKI_SAS_B,
 183                 .end    = IRQ_LOKI_SAS_B,
 184                 .flags  = IORESOURCE_IRQ,
 185         },
 186 };
 187
 188 static struct platform_device loki_sas = {
 189         .name           = "mvsas",
 190         .id             = 0,
 191         .dev            = {
 192                 .coherent_dma_mask      = DMA_BIT_MASK(32),
 193         },
 194         .num_resources  = ARRAY_SIZE(loki_sas_resources),
 195         .resource       = loki_sas_resources,
 196 };
 197
 198 void __init loki_sas_init(void)
 199 {
 200         writel(0x8300f707, DDR_REG(0x1424));
 201         platform_device_register(&loki_sas);
 202 }
 203
 204
 205 /*****************************************************************************
 206  * UART0
 207  ****************************************************************************/
 208 void __init loki_uart0_init(void)
 209 {
 210         orion_uart0_init(UART0_VIRT_BASE, UART0_PHYS_BASE,
 211                          IRQ_LOKI_UART0, LOKI_TCLK);
 212 }
 213
 214 /*****************************************************************************
 215  * UART1
 216  ****************************************************************************/
 217 void __init loki_uart1_init(void)
 218 {
 219         orion_uart1_init(UART1_VIRT_BASE, UART1_PHYS_BASE,
 220                          IRQ_LOKI_UART1, LOKI_TCLK);
 221 }
 222
 223
 224 /*****************************************************************************
 225  * Time handling
 226  ****************************************************************************/
 227 void __init loki_init_early(void)
 228 {
 229         orion_time_set_base(TIMER_VIRT_BASE);
 230 }
 231
 232 static void loki_timer_init(void)
 233 {
 234         orion_time_init(BRIDGE_VIRT_BASE, BRIDGE_INT_TIMER1_CLR,
 235                         IRQ_LOKI_BRIDGE, LOKI_TCLK);
 236 }
 237
 238 struct sys_timer loki_timer = {
 239         .init = loki_timer_init,
 240 };
 241
 242
 243 /*****************************************************************************
 244  * General
 245  ****************************************************************************/
 246 void __init loki_init(void)
 247 {
 248         printk(KERN_INFO "Loki ID: 88RC8480. TCLK=%d.\n", LOKI_TCLK);
 249
 250         loki_setup_cpu_mbus();
 251 }