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_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 } 295