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/serial_8250.h>
  17 #include <linux/clk.h>
  18 #include <linux/mbus.h>
  19 #include <linux/ata_platform.h>
  20 #include <linux/serial_8250.h>
  21 #include <linux/gpio.h>
  22 #include <asm/page.h>
  23 #include <asm/setup.h>
  24 #include <asm/timex.h>
  25 #include <asm/hardware/cache-tauros2.h>
  26 #include <asm/mach/map.h>
  27 #include <asm/mach/time.h>
  28 #include <asm/mach/pci.h>
  29 #include <mach/dove.h>
  30 #include <mach/bridge-regs.h>
  31 #include <asm/mach/arch.h>
  32 #include <linux/irq.h>
  33 #include <plat/time.h>
  34 #include <plat/common.h>
  35 #include "common.h"
  36
  37 static int get_tclk(void);
  38
  39 /*****************************************************************************
  40  * I/O Address Mapping
  41  ****************************************************************************/
  42 static struct map_desc dove_io_desc[] __initdata = {
  43         {
  44                 .virtual        = DOVE_SB_REGS_VIRT_BASE,
  45                 .pfn            = __phys_to_pfn(DOVE_SB_REGS_PHYS_BASE),
  46                 .length         = DOVE_SB_REGS_SIZE,
  47                 .type           = MT_DEVICE,
  48         }, {
  49                 .virtual        = DOVE_NB_REGS_VIRT_BASE,
  50                 .pfn            = __phys_to_pfn(DOVE_NB_REGS_PHYS_BASE),
  51                 .length         = DOVE_NB_REGS_SIZE,
  52                 .type           = MT_DEVICE,
  53         }, {
  54                 .virtual        = DOVE_PCIE0_IO_VIRT_BASE,
  55                 .pfn            = __phys_to_pfn(DOVE_PCIE0_IO_PHYS_BASE),
  56                 .length         = DOVE_PCIE0_IO_SIZE,
  57                 .type           = MT_DEVICE,
  58         }, {
  59                 .virtual        = DOVE_PCIE1_IO_VIRT_BASE,
  60                 .pfn            = __phys_to_pfn(DOVE_PCIE1_IO_PHYS_BASE),
  61                 .length         = DOVE_PCIE1_IO_SIZE,
  62                 .type           = MT_DEVICE,
  63         },
  64 };
  65
  66 void __init dove_map_io(void)
  67 {
  68         iotable_init(dove_io_desc, ARRAY_SIZE(dove_io_desc));
  69 }
  70
  71 /*****************************************************************************
  72  * EHCI0
  73  ****************************************************************************/
  74 void __init dove_ehci0_init(void)
  75 {
  76         orion_ehci_init(&dove_mbus_dram_info,
  77                         DOVE_USB0_PHYS_BASE, IRQ_DOVE_USB0);
  78 }
  79
  80 /*****************************************************************************
  81  * EHCI1
  82  ****************************************************************************/
  83 void __init dove_ehci1_init(void)
  84 {
  85         orion_ehci_1_init(&dove_mbus_dram_info,
  86                           DOVE_USB1_PHYS_BASE, IRQ_DOVE_USB1);
  87 }
  88
  89 /*****************************************************************************
  90  * GE00
  91  ****************************************************************************/
  92 void __init dove_ge00_init(struct mv643xx_eth_platform_data *eth_data)
  93 {
  94         orion_ge00_init(eth_data, &dove_mbus_dram_info,
  95                         DOVE_GE00_PHYS_BASE, IRQ_DOVE_GE00_SUM,
  96                         0, get_tclk());
  97 }
  98
  99 /*****************************************************************************
 100  * SoC RTC
 101  ****************************************************************************/
 102 void __init dove_rtc_init(void)
 103 {
 104         orion_rtc_init(DOVE_RTC_PHYS_BASE, IRQ_DOVE_RTC);
 105 }
 106
 107 /*****************************************************************************
 108  * SATA
 109  ****************************************************************************/
 110 void __init dove_sata_init(struct mv_sata_platform_data *sata_data)
 111 {
 112         orion_sata_init(sata_data, &dove_mbus_dram_info,
 113                         DOVE_SATA_PHYS_BASE, IRQ_DOVE_SATA);
 114
 115 }
 116
 117 /*****************************************************************************
 118  * UART0
 119  ****************************************************************************/
 120 void __init dove_uart0_init(void)
 121 {
 122         orion_uart0_init(DOVE_UART0_VIRT_BASE, DOVE_UART0_PHYS_BASE,
 123                          IRQ_DOVE_UART_0, get_tclk());
 124 }
 125
 126 /*****************************************************************************
 127  * UART1
 128  ****************************************************************************/
 129 void __init dove_uart1_init(void)
 130 {
 131         orion_uart1_init(DOVE_UART1_VIRT_BASE, DOVE_UART1_PHYS_BASE,
 132                          IRQ_DOVE_UART_1, get_tclk());
 133 }
 134
 135 /*****************************************************************************
 136  * UART2
 137  ****************************************************************************/
 138 void __init dove_uart2_init(void)
 139 {
 140         orion_uart2_init(DOVE_UART2_VIRT_BASE, DOVE_UART2_PHYS_BASE,
 141                          IRQ_DOVE_UART_2, get_tclk());
 142 }
 143
 144 /*****************************************************************************
 145  * UART3
 146  ****************************************************************************/
 147 void __init dove_uart3_init(void)
 148 {
 149         orion_uart3_init(DOVE_UART3_VIRT_BASE, DOVE_UART3_PHYS_BASE,
 150                          IRQ_DOVE_UART_3, get_tclk());
 151 }
 152
 153 /*****************************************************************************
 154  * SPI
 155  ****************************************************************************/
 156 void __init dove_spi0_init(void)
 157 {
 158         orion_spi_init(DOVE_SPI0_PHYS_BASE, get_tclk());
 159 }
 160
 161 void __init dove_spi1_init(void)
 162 {
 163         orion_spi_init(DOVE_SPI1_PHYS_BASE, get_tclk());
 164 }
 165
 166 /*****************************************************************************
 167  * I2C
 168  ****************************************************************************/
 169 void __init dove_i2c_init(void)
 170 {
 171         orion_i2c_init(DOVE_I2C_PHYS_BASE, IRQ_DOVE_I2C, 10);
 172 }
 173
 174 /*****************************************************************************
 175  * Time handling
 176  ****************************************************************************/
 177 void __init dove_init_early(void)
 178 {
 179         orion_time_set_base(TIMER_VIRT_BASE);
 180 }
 181
 182 static int get_tclk(void)
 183 {
 184         /* use DOVE_RESET_SAMPLE_HI/LO to detect tclk */
 185         return 166666667;
 186 }
 187
 188 static void dove_timer_init(void)
 189 {
 190         orion_time_init(BRIDGE_VIRT_BASE, BRIDGE_INT_TIMER1_CLR,
 191                         IRQ_DOVE_BRIDGE, get_tclk());
 192 }
 193
 194 struct sys_timer dove_timer = {
 195         .init = dove_timer_init,
 196 };
 197
 198 /*****************************************************************************
 199  * XOR 0
 200  ****************************************************************************/
 201 void __init dove_xor0_init(void)
 202 {
 203         orion_xor0_init(&dove_mbus_dram_info,
 204                         DOVE_XOR0_PHYS_BASE, DOVE_XOR0_HIGH_PHYS_BASE,
 205                         IRQ_DOVE_XOR_00, IRQ_DOVE_XOR_01);
 206 }
 207
 208 /*****************************************************************************
 209  * XOR 1
 210  ****************************************************************************/
 211 void __init dove_xor1_init(void)
 212 {
 213         orion_xor1_init(DOVE_XOR1_PHYS_BASE, DOVE_XOR1_HIGH_PHYS_BASE,
 214                         IRQ_DOVE_XOR_10, IRQ_DOVE_XOR_11);
 215 }
 216
 217 /*****************************************************************************
 218  * SDIO
 219  ****************************************************************************/
 220 static u64 sdio_dmamask = DMA_BIT_MASK(32);
 221
 222 static struct resource dove_sdio0_resources[] = {
 223         {
 224                 .start  = DOVE_SDIO0_PHYS_BASE,
 225                 .end    = DOVE_SDIO0_PHYS_BASE + 0xff,
 226                 .flags  = IORESOURCE_MEM,
 227         }, {
 228                 .start  = IRQ_DOVE_SDIO0,
 229                 .end    = IRQ_DOVE_SDIO0,
 230                 .flags  = IORESOURCE_IRQ,
 231         },
 232 };
 233
 234 static struct platform_device dove_sdio0 = {
 235         .name           = "sdhci-dove",
 236         .id             = 0,
 237         .dev            = {
 238                 .dma_mask               = &sdio_dmamask,
 239                 .coherent_dma_mask      = DMA_BIT_MASK(32),
 240         },
 241         .resource       = dove_sdio0_resources,
 242         .num_resources  = ARRAY_SIZE(dove_sdio0_resources),
 243 };
 244
 245 void __init dove_sdio0_init(void)
 246 {
 247         platform_device_register(&dove_sdio0);
 248 }
 249
 250 static struct resource dove_sdio1_resources[] = {
 251         {
 252                 .start  = DOVE_SDIO1_PHYS_BASE,
 253                 .end    = DOVE_SDIO1_PHYS_BASE + 0xff,
 254                 .flags  = IORESOURCE_MEM,
 255         }, {
 256                 .start  = IRQ_DOVE_SDIO1,
 257                 .end    = IRQ_DOVE_SDIO1,
 258                 .flags  = IORESOURCE_IRQ,
 259         },
 260 };
 261
 262 static struct platform_device dove_sdio1 = {
 263         .name           = "sdhci-dove",
 264         .id             = 1,
 265         .dev            = {
 266                 .dma_mask               = &sdio_dmamask,
 267                 .coherent_dma_mask      = DMA_BIT_MASK(32),
 268         },
 269         .resource       = dove_sdio1_resources,
 270         .num_resources  = ARRAY_SIZE(dove_sdio1_resources),
 271 };
 272
 273 void __init dove_sdio1_init(void)
 274 {
 275         platform_device_register(&dove_sdio1);
 276 }
 277
 278 void __init dove_init(void)
 279 {
 280         int tclk;
 281
 282         tclk = get_tclk();
 283
 284         printk(KERN_INFO "Dove 88AP510 SoC, ");
 285         printk(KERN_INFO "TCLK = %dMHz\n", (tclk + 499999) / 1000000);
 286
 287 #ifdef CONFIG_CACHE_TAUROS2
 288         tauros2_init();
 289 #endif
 290         dove_setup_cpu_mbus();
 291
 292         /* internal devices that every board has */
 293         dove_rtc_init();
 294         dove_xor0_init();
 295         dove_xor1_init();
 296 }