arch/arm/mach-dove/common.c

   1 /*
   2  * arch/arm/mach-dove/common.c
   3  *
   4  * Core functions for Marvell Dove 88AP510 System On Chip
   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/delay.h>
  13 #include <linux/init.h>
  14 #include <linux/platform_device.h>
  15 #include <linux/pci.h>
  16 #include <linux/clk.h>
  17 #include <linux/mbus.h>
  18 #include <linux/ata_platform.h>
  19 #include <linux/gpio.h>
  20 #include <asm/page.h>
  21 #include <asm/setup.h>
  22 #include <asm/timex.h>
  23 #include <asm/hardware/cache-tauros2.h>
  24 #include <asm/mach/map.h>
  25 #include <asm/mach/time.h>
  26 #include <asm/mach/pci.h>
  27 #include <mach/dove.h>
  28 #include <mach/bridge-regs.h>
  29 #include <asm/mach/arch.h>
  30 #include <linux/irq.h>
  31 #include <plat/time.h>
  32 #include <plat/common.h>
  33 #include "common.h"
  34
  35 static int get_tclk(void);
  36
  37 /*****************************************************************************
  38  * I/O Address Mapping
  39  ****************************************************************************/
  40 static struct map_desc dove_io_desc[] __initdata = {
  41         {
  42                 .virtual        = DOVE_SB_REGS_VIRT_BASE,
  43                 .pfn            = __phys_to_pfn(DOVE_SB_REGS_PHYS_BASE),
  44                 .length         = DOVE_SB_REGS_SIZE,
  45                 .type           = MT_DEVICE,
  46         }, {
  47                 .virtual        = DOVE_NB_REGS_VIRT_BASE,
  48                 .pfn            = __phys_to_pfn(DOVE_NB_REGS_PHYS_BASE),
  49                 .length         = DOVE_NB_REGS_SIZE,
  50                 .type           = MT_DEVICE,
  51         }, {
  52                 .virtual        = DOVE_PCIE0_IO_VIRT_BASE,
  53                 .pfn            = __phys_to_pfn(DOVE_PCIE0_IO_PHYS_BASE),
  54                 .length         = DOVE_PCIE0_IO_SIZE,
  55                 .type           = MT_DEVICE,
  56         }, {
  57                 .virtual        = DOVE_PCIE1_IO_VIRT_BASE,
  58                 .pfn            = __phys_to_pfn(DOVE_PCIE1_IO_PHYS_BASE),
  59                 .length         = DOVE_PCIE1_IO_SIZE,
  60                 .type           = MT_DEVICE,
  61         },
  62 };
  63
  64 void __init dove_map_io(void)
  65 {
  66         iotable_init(dove_io_desc, ARRAY_SIZE(dove_io_desc));
  67 }
  68
  69 /*****************************************************************************
  70  * EHCI0
  71  ****************************************************************************/
  72 void __init dove_ehci0_init(void)
  73 {
  74         orion_ehci_init(&dove_mbus_dram_info,
  75                         DOVE_USB0_PHYS_BASE, IRQ_DOVE_USB0);
  76 }
  77
  78 /*****************************************************************************
  79  * EHCI1
  80  ****************************************************************************/
  81 void __init dove_ehci1_init(void)
  82 {
  83         orion_ehci_1_init(&dove_mbus_dram_info,
  84                           DOVE_USB1_PHYS_BASE, IRQ_DOVE_USB1);
  85 }
  86
  87 /*****************************************************************************
  88  * GE00
  89  ****************************************************************************/
  90 void __init dove_ge00_init(struct mv643xx_eth_platform_data *eth_data)
  91 {
  92         orion_ge00_init(eth_data, &dove_mbus_dram_info,
  93                         DOVE_GE00_PHYS_BASE, IRQ_DOVE_GE00_SUM,
  94                         0, get_tclk());
  95 }
  96
  97 /*****************************************************************************
  98  * SoC RTC
  99  ****************************************************************************/
 100 void __init dove_rtc_init(void)
 101 {
 102         orion_rtc_init(DOVE_RTC_PHYS_BASE, IRQ_DOVE_RTC);
 103 }
 104
 105 /*****************************************************************************
 106  * SATA
 107  ****************************************************************************/
 108 void __init dove_sata_init(struct mv_sata_platform_data *sata_data)
 109 {
 110         orion_sata_init(sata_data, &dove_mbus_dram_info,
 111                         DOVE_SATA_PHYS_BASE, IRQ_DOVE_SATA);
 112
 113 }
 114
 115 /*****************************************************************************
 116  * UART0
 117  ****************************************************************************/
 118 void __init dove_uart0_init(void)
 119 {
 120         orion_uart0_init(DOVE_UART0_VIRT_BASE, DOVE_UART0_PHYS_BASE,
 121                          IRQ_DOVE_UART_0, get_tclk());
 122 }
 123
 124 /*****************************************************************************
 125  * UART1
 126  ****************************************************************************/
 127 void __init dove_uart1_init(void)
 128 {
 129         orion_uart1_init(DOVE_UART1_VIRT_BASE, DOVE_UART1_PHYS_BASE,
 130                          IRQ_DOVE_UART_1, get_tclk());
 131 }
 132
 133 /*****************************************************************************
 134  * UART2
 135  ****************************************************************************/
 136 void __init dove_uart2_init(void)
 137 {
 138         orion_uart2_init(DOVE_UART2_VIRT_BASE, DOVE_UART2_PHYS_BASE,
 139                          IRQ_DOVE_UART_2, get_tclk());
 140 }
 141
 142 /*****************************************************************************
 143  * UART3
 144  ****************************************************************************/
 145 void __init dove_uart3_init(void)
 146 {
 147         orion_uart3_init(DOVE_UART3_VIRT_BASE, DOVE_UART3_PHYS_BASE,
 148                          IRQ_DOVE_UART_3, get_tclk());
 149 }
 150
 151 /*****************************************************************************
 152  * SPI
 153  ****************************************************************************/
 154 void __init dove_spi0_init(void)
 155 {
 156         orion_spi_init(DOVE_SPI0_PHYS_BASE, get_tclk());
 157 }
 158
 159 void __init dove_spi1_init(void)
 160 {
 161         orion_spi_1_init(DOVE_SPI1_PHYS_BASE, get_tclk());
 162 }
 163
 164 /*****************************************************************************
 165  * I2C
 166  ****************************************************************************/
 167 void __init dove_i2c_init(void)
 168 {
 169         orion_i2c_init(DOVE_I2C_PHYS_BASE, IRQ_DOVE_I2C, 10);
 170 }
 171
 172 /*****************************************************************************
 173  * Time handling
 174  ****************************************************************************/
 175 void __init dove_init_early(void)
 176 {
 177         orion_time_set_base(TIMER_VIRT_BASE);
 178 }
 179
 180 static int get_tclk(void)
 181 {
 182         /* use DOVE_RESET_SAMPLE_HI/LO to detect tclk */
 183         return 166666667;
 184 }
 185
 186 static void dove_timer_init(void)
 187 {
 188         orion_time_init(BRIDGE_VIRT_BASE, BRIDGE_INT_TIMER1_CLR,
 189                         IRQ_DOVE_BRIDGE, get_tclk());
 190 }
 191
 192 struct sys_timer dove_timer = {
 193         .init = dove_timer_init,
 194 };
 195
 196 /*****************************************************************************
 197  * XOR 0
 198  ****************************************************************************/
 199 void __init dove_xor0_init(void)
 200 {
 201         orion_xor0_init(&dove_mbus_dram_info,
 202                         DOVE_XOR0_PHYS_BASE, DOVE_XOR0_HIGH_PHYS_BASE,
 203                         IRQ_DOVE_XOR_00, IRQ_DOVE_XOR_01);
 204 }
 205
 206 /*****************************************************************************
 207  * XOR 1
 208  ****************************************************************************/
 209 void __init dove_xor1_init(void)
 210 {
 211         orion_xor1_init(DOVE_XOR1_PHYS_BASE, DOVE_XOR1_HIGH_PHYS_BASE,
 212                         IRQ_DOVE_XOR_10, IRQ_DOVE_XOR_11);
 213 }
 214
 215 /*****************************************************************************
 216  * SDIO
 217  ****************************************************************************/
 218 static u64 sdio_dmamask = DMA_BIT_MASK(32);
 219
 220 static struct resource dove_sdio0_resources[] = {
 221         {
 222                 .start  = DOVE_SDIO0_PHYS_BASE,
 223                 .end    = DOVE_SDIO0_PHYS_BASE + 0xff,
 224                 .flags  = IORESOURCE_MEM,
 225         }, {
 226                 .start  = IRQ_DOVE_SDIO0,
 227                 .end    = IRQ_DOVE_SDIO0,
 228                 .flags  = IORESOURCE_IRQ,
 229         },
 230 };
 231
 232 static struct platform_device dove_sdio0 = {
 233         .name           = "sdhci-dove",
 234         .id             = 0,
 235         .dev            = {
 236                 .dma_mask               = &sdio_dmamask,
 237                 .coherent_dma_mask      = DMA_BIT_MASK(32),
 238         },
 239         .resource       = dove_sdio0_resources,
 240         .num_resources  = ARRAY_SIZE(dove_sdio0_resources),
 241 };
 242
 243 void __init dove_sdio0_init(void)
 244 {
 245         platform_device_register(&dove_sdio0);
 246 }
 247
 248 static struct resource dove_sdio1_resources[] = {
 249         {
 250                 .start  = DOVE_SDIO1_PHYS_BASE,
 251                 .end    = DOVE_SDIO1_PHYS_BASE + 0xff,
 252                 .flags  = IORESOURCE_MEM,
 253         }, {
 254                 .start  = IRQ_DOVE_SDIO1,
 255                 .end    = IRQ_DOVE_SDIO1,
 256                 .flags  = IORESOURCE_IRQ,
 257         },
 258 };
 259
 260 static struct platform_device dove_sdio1 = {
 261         .name           = "sdhci-dove",
 262         .id             = 1,
 263         .dev            = {
 264                 .dma_mask               = &sdio_dmamask,
 265                 .coherent_dma_mask      = DMA_BIT_MASK(32),
 266         },
 267         .resource       = dove_sdio1_resources,
 268         .num_resources  = ARRAY_SIZE(dove_sdio1_resources),
 269 };
 270
 271 void __init dove_sdio1_init(void)
 272 {
 273         platform_device_register(&dove_sdio1);
 274 }
 275
 276 void __init dove_init(void)
 277 {
 278         int tclk;
 279
 280         tclk = get_tclk();
 281
 282         printk(KERN_INFO "Dove 88AP510 SoC, ");
 283         printk(KERN_INFO "TCLK = %dMHz\n", (tclk + 499999) / 1000000);
 284
 285 #ifdef CONFIG_CACHE_TAUROS2
 286         tauros2_init();
 287 #endif
 288         dove_setup_cpu_mbus();
 289
 290         /* internal devices that every board has */
 291         dove_rtc_init();
 292         dove_xor0_init();
 293         dove_xor1_init();
 294 }