1/* 2 * linux/arch/arm/mach-realview/realview_pb1176.c 3 * 4 * Copyright (C) 2008 ARM Limited 5 * Copyright (C) 2000 Deep Blue Solutions Ltd 6 * 7 * This program is free software; you can redistribute it and/or modify 8 * it under the terms of the GNU General Public License as published by 9 * the Free Software Foundation; either version 2 of the License, or 10 * (at your option) any later version. 11 * 12 * This program is distributed in the hope that it will be useful, 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 * GNU General Public License for more details. 16 * 17 * You should have received a copy of the GNU General Public License 18 * along with this program; if not, write to the Free Software 19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 20 */ 21 22#include <linux/init.h> 23#include <linux/platform_device.h> 24#include <linux/sysdev.h> 25#include <linux/amba/bus.h> 26#include <linux/amba/pl061.h> 27#include <linux/amba/mmci.h> 28#include <linux/amba/pl022.h> 29#include <linux/io.h> 30 31#include <mach/hardware.h> 32#include <asm/irq.h> 33#include <asm/leds.h> 34#include <asm/mach-types.h> 35#include <asm/pmu.h> 36#include <asm/pgtable.h> 37#include <asm/hardware/gic.h> 38#include <asm/hardware/cache-l2x0.h> 39 40#include <asm/mach/arch.h> 41#include <asm/mach/flash.h> 42#include <asm/mach/map.h> 43#include <asm/mach/time.h> 44 45#include <mach/board-pb1176.h> 46#include <mach/irqs.h> 47 48#include "core.h" 49 50static struct map_desc realview_pb1176_io_desc[] __initdata = { 51 { 52 .virtual = IO_ADDRESS(REALVIEW_SYS_BASE), 53 .pfn = __phys_to_pfn(REALVIEW_SYS_BASE), 54 .length = SZ_4K, 55 .type = MT_DEVICE, 56 }, { 57 .virtual = IO_ADDRESS(REALVIEW_PB1176_GIC_CPU_BASE), 58 .pfn = __phys_to_pfn(REALVIEW_PB1176_GIC_CPU_BASE), 59 .length = SZ_4K, 60 .type = MT_DEVICE, 61 }, { 62 .virtual = IO_ADDRESS(REALVIEW_PB1176_GIC_DIST_BASE), 63 .pfn = __phys_to_pfn(REALVIEW_PB1176_GIC_DIST_BASE), 64 .length = SZ_4K, 65 .type = MT_DEVICE, 66 }, { 67 .virtual = IO_ADDRESS(REALVIEW_DC1176_GIC_CPU_BASE), 68 .pfn = __phys_to_pfn(REALVIEW_DC1176_GIC_CPU_BASE), 69 .length = SZ_4K, 70 .type = MT_DEVICE, 71 }, { 72 .virtual = IO_ADDRESS(REALVIEW_DC1176_GIC_DIST_BASE), 73 .pfn = __phys_to_pfn(REALVIEW_DC1176_GIC_DIST_BASE), 74 .length = SZ_4K, 75 .type = MT_DEVICE, 76 }, { 77 .virtual = IO_ADDRESS(REALVIEW_SCTL_BASE), 78 .pfn = __phys_to_pfn(REALVIEW_SCTL_BASE), 79 .length = SZ_4K, 80 .type = MT_DEVICE, 81 }, { 82 .virtual = IO_ADDRESS(REALVIEW_PB1176_TIMER0_1_BASE), 83 .pfn = __phys_to_pfn(REALVIEW_PB1176_TIMER0_1_BASE), 84 .length = SZ_4K, 85 .type = MT_DEVICE, 86 }, { 87 .virtual = IO_ADDRESS(REALVIEW_PB1176_TIMER2_3_BASE), 88 .pfn = __phys_to_pfn(REALVIEW_PB1176_TIMER2_3_BASE), 89 .length = SZ_4K, 90 .type = MT_DEVICE, 91 }, { 92 .virtual = IO_ADDRESS(REALVIEW_PB1176_L220_BASE), 93 .pfn = __phys_to_pfn(REALVIEW_PB1176_L220_BASE), 94 .length = SZ_8K, 95 .type = MT_DEVICE, 96 }, 97#ifdef CONFIG_DEBUG_LL 98 { 99 .virtual = IO_ADDRESS(REALVIEW_PB1176_UART0_BASE), 100 .pfn = __phys_to_pfn(REALVIEW_PB1176_UART0_BASE), 101 .length = SZ_4K, 102 .type = MT_DEVICE, 103 }, 104#endif 105}; 106 107static void __init realview_pb1176_map_io(void) 108{ 109 iotable_init(realview_pb1176_io_desc, ARRAY_SIZE(realview_pb1176_io_desc)); 110} 111 112static struct pl061_platform_data gpio0_plat_data = { 113 .gpio_base = 0, 114 .irq_base = -1, 115}; 116 117static struct pl061_platform_data gpio1_plat_data = { 118 .gpio_base = 8, 119 .irq_base = -1, 120}; 121 122static struct pl061_platform_data gpio2_plat_data = { 123 .gpio_base = 16, 124 .irq_base = -1, 125}; 126 127static struct pl022_ssp_controller ssp0_plat_data = { 128 .bus_id = 0, 129 .enable_dma = 0, 130 .num_chipselect = 1, 131}; 132 133/* 134 * RealView PB1176 AMBA devices 135 */ 136#define GPIO2_IRQ { IRQ_PB1176_GPIO2, NO_IRQ } 137#define GPIO2_DMA { 0, 0 } 138#define GPIO3_IRQ { IRQ_PB1176_GPIO3, NO_IRQ } 139#define GPIO3_DMA { 0, 0 } 140#define AACI_IRQ { IRQ_PB1176_AACI, NO_IRQ } 141#define AACI_DMA { 0x80, 0x81 } 142#define MMCI0_IRQ { IRQ_PB1176_MMCI0A, IRQ_PB1176_MMCI0B } 143#define MMCI0_DMA { 0x84, 0 } 144#define KMI0_IRQ { IRQ_PB1176_KMI0, NO_IRQ } 145#define KMI0_DMA { 0, 0 } 146#define KMI1_IRQ { IRQ_PB1176_KMI1, NO_IRQ } 147#define KMI1_DMA { 0, 0 } 148#define PB1176_SMC_IRQ { NO_IRQ, NO_IRQ } 149#define PB1176_SMC_DMA { 0, 0 } 150#define MPMC_IRQ { NO_IRQ, NO_IRQ } 151#define MPMC_DMA { 0, 0 } 152#define PB1176_CLCD_IRQ { IRQ_DC1176_CLCD, NO_IRQ } 153#define PB1176_CLCD_DMA { 0, 0 } 154#define SCTL_IRQ { NO_IRQ, NO_IRQ } 155#define SCTL_DMA { 0, 0 } 156#define PB1176_WATCHDOG_IRQ { IRQ_DC1176_WATCHDOG, NO_IRQ } 157#define PB1176_WATCHDOG_DMA { 0, 0 } 158#define PB1176_GPIO0_IRQ { IRQ_PB1176_GPIO0, NO_IRQ } 159#define PB1176_GPIO0_DMA { 0, 0 } 160#define GPIO1_IRQ { IRQ_PB1176_GPIO1, NO_IRQ } 161#define GPIO1_DMA { 0, 0 } 162#define PB1176_RTC_IRQ { IRQ_DC1176_RTC, NO_IRQ } 163#define PB1176_RTC_DMA { 0, 0 } 164#define SCI_IRQ { IRQ_PB1176_SCI, NO_IRQ } 165#define SCI_DMA { 7, 6 } 166#define PB1176_UART0_IRQ { IRQ_DC1176_UART0, NO_IRQ } 167#define PB1176_UART0_DMA { 15, 14 } 168#define PB1176_UART1_IRQ { IRQ_DC1176_UART1, NO_IRQ } 169#define PB1176_UART1_DMA { 13, 12 } 170#define PB1176_UART2_IRQ { IRQ_DC1176_UART2, NO_IRQ } 171#define PB1176_UART2_DMA { 11, 10 } 172#define PB1176_UART3_IRQ { IRQ_DC1176_UART3, NO_IRQ } 173#define PB1176_UART3_DMA { 0x86, 0x87 } 174#define PB1176_UART4_IRQ { IRQ_PB1176_UART4, NO_IRQ } 175#define PB1176_UART4_DMA { 0, 0 } 176#define PB1176_SSP_IRQ { IRQ_DC1176_SSP, NO_IRQ } 177#define PB1176_SSP_DMA { 9, 8 } 178 179/* FPGA Primecells */ 180AMBA_DEVICE(aaci, "fpga:aaci", AACI, NULL); 181AMBA_DEVICE(mmc0, "fpga:mmc0", MMCI0, &realview_mmc0_plat_data); 182AMBA_DEVICE(kmi0, "fpga:kmi0", KMI0, NULL); 183AMBA_DEVICE(kmi1, "fpga:kmi1", KMI1, NULL); 184AMBA_DEVICE(uart4, "fpga:uart4", PB1176_UART4, NULL); 185 186/* DevChip Primecells */ 187AMBA_DEVICE(smc, "dev:smc", PB1176_SMC, NULL); 188AMBA_DEVICE(sctl, "dev:sctl", SCTL, NULL); 189AMBA_DEVICE(wdog, "dev:wdog", PB1176_WATCHDOG, NULL); 190AMBA_DEVICE(gpio0, "dev:gpio0", PB1176_GPIO0, &gpio0_plat_data); 191AMBA_DEVICE(gpio1, "dev:gpio1", GPIO1, &gpio1_plat_data); 192AMBA_DEVICE(gpio2, "dev:gpio2", GPIO2, &gpio2_plat_data); 193AMBA_DEVICE(rtc, "dev:rtc", PB1176_RTC, NULL); 194AMBA_DEVICE(sci0, "dev:sci0", SCI, NULL); 195AMBA_DEVICE(uart0, "dev:uart0", PB1176_UART0, NULL); 196AMBA_DEVICE(uart1, "dev:uart1", PB1176_UART1, NULL); 197AMBA_DEVICE(uart2, "dev:uart2", PB1176_UART2, NULL); 198AMBA_DEVICE(uart3, "dev:uart3", PB1176_UART3, NULL); 199AMBA_DEVICE(ssp0, "dev:ssp0", PB1176_SSP, &ssp0_plat_data); 200AMBA_DEVICE(clcd, "dev:clcd", PB1176_CLCD, &clcd_plat_data); 201 202static struct amba_device *amba_devs[] __initdata = { 203 &uart0_device, 204 &uart1_device, 205 &uart2_device, 206 &uart3_device, 207 &uart4_device, 208 &smc_device, 209 &clcd_device, 210 &sctl_device, 211 &wdog_device, 212 &gpio0_device, 213 &gpio1_device, 214 &gpio2_device, 215 &rtc_device, 216 &sci0_device, 217 &ssp0_device, 218 &aaci_device, 219 &mmc0_device, 220 &kmi0_device, 221 &kmi1_device, 222}; 223 224/* 225 * RealView PB1176 platform devices 226 */ 227static struct resource realview_pb1176_flash_resources[] = { 228 [0] = { 229 .start = REALVIEW_PB1176_FLASH_BASE, 230 .end = REALVIEW_PB1176_FLASH_BASE + REALVIEW_PB1176_FLASH_SIZE - 1, 231 .flags = IORESOURCE_MEM, 232 }, 233 [1] = { 234 .start = REALVIEW_PB1176_SEC_FLASH_BASE, 235 .end = REALVIEW_PB1176_SEC_FLASH_BASE + REALVIEW_PB1176_SEC_FLASH_SIZE - 1, 236 .flags = IORESOURCE_MEM, 237 }, 238}; 239#ifdef CONFIG_REALVIEW_PB1176_SECURE_FLASH 240#define PB1176_FLASH_BLOCKS 2 241#else 242#define PB1176_FLASH_BLOCKS 1 243#endif 244 245static struct resource realview_pb1176_smsc911x_resources[] = { 246 [0] = { 247 .start = REALVIEW_PB1176_ETH_BASE, 248 .end = REALVIEW_PB1176_ETH_BASE + SZ_64K - 1, 249 .flags = IORESOURCE_MEM, 250 }, 251 [1] = { 252 .start = IRQ_PB1176_ETH, 253 .end = IRQ_PB1176_ETH, 254 .flags = IORESOURCE_IRQ, 255 }, 256}; 257 258static struct resource realview_pb1176_isp1761_resources[] = { 259 [0] = { 260 .start = REALVIEW_PB1176_USB_BASE, 261 .end = REALVIEW_PB1176_USB_BASE + SZ_128K - 1, 262 .flags = IORESOURCE_MEM, 263 }, 264 [1] = { 265 .start = IRQ_PB1176_USB, 266 .end = IRQ_PB1176_USB, 267 .flags = IORESOURCE_IRQ, 268 }, 269}; 270 271static struct resource pmu_resource = { 272 .start = IRQ_DC1176_CORE_PMU, 273 .end = IRQ_DC1176_CORE_PMU, 274 .flags = IORESOURCE_IRQ, 275}; 276 277static struct platform_device pmu_device = { 278 .name = "arm-pmu", 279 .id = ARM_PMU_DEVICE_CPU, 280 .num_resources = 1, 281 .resource = &pmu_resource, 282}; 283 284static struct resource char_lcd_resources[] = { 285 { 286 .start = REALVIEW_CHAR_LCD_BASE, 287 .end = (REALVIEW_CHAR_LCD_BASE + SZ_4K - 1), 288 .flags = IORESOURCE_MEM, 289 }, 290 { 291 .start = IRQ_PB1176_CHARLCD, 292 .end = IRQ_PB1176_CHARLCD, 293 .flags = IORESOURCE_IRQ, 294 }, 295}; 296 297static struct platform_device char_lcd_device = { 298 .name = "arm-charlcd", 299 .id = -1, 300 .num_resources = ARRAY_SIZE(char_lcd_resources), 301 .resource = char_lcd_resources, 302}; 303 304static void __init gic_init_irq(void) 305{ 306 /* ARM1176 DevChip GIC, primary */ 307 gic_cpu_base_addr = __io_address(REALVIEW_DC1176_GIC_CPU_BASE); 308 gic_dist_init(0, __io_address(REALVIEW_DC1176_GIC_DIST_BASE), IRQ_DC1176_GIC_START); 309 gic_cpu_init(0, gic_cpu_base_addr); 310 311 /* board GIC, secondary */ 312 gic_dist_init(1, __io_address(REALVIEW_PB1176_GIC_DIST_BASE), IRQ_PB1176_GIC_START); 313 gic_cpu_init(1, __io_address(REALVIEW_PB1176_GIC_CPU_BASE)); 314 gic_cascade_irq(1, IRQ_DC1176_PB_IRQ1); 315} 316 317static void __init realview_pb1176_timer_init(void) 318{ 319 timer0_va_base = __io_address(REALVIEW_PB1176_TIMER0_1_BASE); 320 timer1_va_base = __io_address(REALVIEW_PB1176_TIMER0_1_BASE) + 0x20; 321 timer2_va_base = __io_address(REALVIEW_PB1176_TIMER2_3_BASE); 322 timer3_va_base = __io_address(REALVIEW_PB1176_TIMER2_3_BASE) + 0x20; 323 324 realview_timer_init(IRQ_DC1176_TIMER0); 325} 326 327static struct sys_timer realview_pb1176_timer = { 328 .init = realview_pb1176_timer_init, 329}; 330 331static void realview_pb1176_reset(char mode) 332{ 333 void __iomem *reset_ctrl = __io_address(REALVIEW_SYS_RESETCTL); 334 void __iomem *lock_ctrl = __io_address(REALVIEW_SYS_LOCK); 335 __raw_writel(REALVIEW_SYS_LOCK_VAL, lock_ctrl); 336 __raw_writel(REALVIEW_PB1176_SYS_SOFT_RESET, reset_ctrl); 337} 338 339static void realview_pb1176_fixup(struct machine_desc *mdesc, 340 struct tag *tags, char **from, 341 struct meminfo *meminfo) 342{ 343 /* 344 * RealView PB1176 only has 128MB of RAM mapped at 0. 345 */ 346 meminfo->bank[0].start = 0; 347 meminfo->bank[0].size = SZ_128M; 348 meminfo->nr_banks = 1; 349} 350 351static void __init realview_pb1176_init(void) 352{ 353 int i; 354 355#ifdef CONFIG_CACHE_L2X0 356 /* 128Kb (16Kb/way) 8-way associativity. evmon/parity/share enabled. */ 357 l2x0_init(__io_address(REALVIEW_PB1176_L220_BASE), 0x00730000, 0xfe000fff); 358#endif 359 360 realview_flash_register(realview_pb1176_flash_resources, 361 PB1176_FLASH_BLOCKS); 362 realview_eth_register(NULL, realview_pb1176_smsc911x_resources); 363 platform_device_register(&realview_i2c_device); 364 realview_usb_register(realview_pb1176_isp1761_resources); 365 platform_device_register(&pmu_device); 366 platform_device_register(&char_lcd_device); 367 368 for (i = 0; i < ARRAY_SIZE(amba_devs); i++) { 369 struct amba_device *d = amba_devs[i]; 370 amba_device_register(d, &iomem_resource); 371 } 372 373#ifdef CONFIG_LEDS 374 leds_event = realview_leds_event; 375#endif 376 realview_reset = realview_pb1176_reset; 377} 378 379MACHINE_START(REALVIEW_PB1176, "ARM-RealView PB1176") 380 /* Maintainer: ARM Ltd/Deep Blue Solutions Ltd */ 381 .phys_io = REALVIEW_PB1176_UART0_BASE & SECTION_MASK, 382 .io_pg_offst = (IO_ADDRESS(REALVIEW_PB1176_UART0_BASE) >> 18) & 0xfffc, 383 .boot_params = PHYS_OFFSET + 0x00000100, 384 .fixup = realview_pb1176_fixup, 385 .map_io = realview_pb1176_map_io, 386 .init_irq = gic_init_irq, 387 .timer = &realview_pb1176_timer, 388 .init_machine = realview_pb1176_init, 389MACHINE_END 390