arch/arm/mach-realview/realview_pb11mp.c

   1 /*
   2  *  linux/arch/arm/mach-realview/realview_pb11mp.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 #include <asm/localtimer.h>
  40
  41 #include <asm/mach/arch.h>
  42 #include <asm/mach/flash.h>
  43 #include <asm/mach/map.h>
  44 #include <asm/mach/time.h>
  45
  46 #include <mach/board-pb11mp.h>
  47 #include <mach/irqs.h>
  48
  49 #include "core.h"
  50
  51 static struct map_desc realview_pb11mp_io_desc[] __initdata = {
  52         {
  53                 .virtual        = IO_ADDRESS(REALVIEW_SYS_BASE),
  54                 .pfn            = __phys_to_pfn(REALVIEW_SYS_BASE),
  55                 .length         = SZ_4K,
  56                 .type           = MT_DEVICE,
  57         }, {
  58                 .virtual        = IO_ADDRESS(REALVIEW_PB11MP_GIC_CPU_BASE),
  59                 .pfn            = __phys_to_pfn(REALVIEW_PB11MP_GIC_CPU_BASE),
  60                 .length         = SZ_4K,
  61                 .type           = MT_DEVICE,
  62         }, {
  63                 .virtual        = IO_ADDRESS(REALVIEW_PB11MP_GIC_DIST_BASE),
  64                 .pfn            = __phys_to_pfn(REALVIEW_PB11MP_GIC_DIST_BASE),
  65                 .length         = SZ_4K,
  66                 .type           = MT_DEVICE,
  67         }, {
  68                 .virtual        = IO_ADDRESS(REALVIEW_TC11MP_GIC_CPU_BASE),
  69                 .pfn            = __phys_to_pfn(REALVIEW_TC11MP_GIC_CPU_BASE),
  70                 .length         = SZ_4K,
  71                 .type           = MT_DEVICE,
  72         }, {
  73                 .virtual        = IO_ADDRESS(REALVIEW_TC11MP_GIC_DIST_BASE),
  74                 .pfn            = __phys_to_pfn(REALVIEW_TC11MP_GIC_DIST_BASE),
  75                 .length         = SZ_4K,
  76                 .type           = MT_DEVICE,
  77         }, {
  78                 .virtual        = IO_ADDRESS(REALVIEW_SCTL_BASE),
  79                 .pfn            = __phys_to_pfn(REALVIEW_SCTL_BASE),
  80                 .length         = SZ_4K,
  81                 .type           = MT_DEVICE,
  82         }, {
  83                 .virtual        = IO_ADDRESS(REALVIEW_PB11MP_TIMER0_1_BASE),
  84                 .pfn            = __phys_to_pfn(REALVIEW_PB11MP_TIMER0_1_BASE),
  85                 .length         = SZ_4K,
  86                 .type           = MT_DEVICE,
  87         }, {
  88                 .virtual        = IO_ADDRESS(REALVIEW_PB11MP_TIMER2_3_BASE),
  89                 .pfn            = __phys_to_pfn(REALVIEW_PB11MP_TIMER2_3_BASE),
  90                 .length         = SZ_4K,
  91                 .type           = MT_DEVICE,
  92         }, {
  93                 .virtual        = IO_ADDRESS(REALVIEW_TC11MP_L220_BASE),
  94                 .pfn            = __phys_to_pfn(REALVIEW_TC11MP_L220_BASE),
  95                 .length         = SZ_8K,
  96                 .type           = MT_DEVICE,
  97         },
  98 #ifdef CONFIG_DEBUG_LL
  99         {
 100                 .virtual        = IO_ADDRESS(REALVIEW_PB11MP_UART0_BASE),
 101                 .pfn            = __phys_to_pfn(REALVIEW_PB11MP_UART0_BASE),
 102                 .length         = SZ_4K,
 103                 .type           = MT_DEVICE,
 104         },
 105 #endif
 106 };
 107
 108 static void __init realview_pb11mp_map_io(void)
 109 {
 110         iotable_init(realview_pb11mp_io_desc, ARRAY_SIZE(realview_pb11mp_io_desc));
 111 }
 112
 113 static struct pl061_platform_data gpio0_plat_data = {
 114         .gpio_base      = 0,
 115         .irq_base       = -1,
 116 };
 117
 118 static struct pl061_platform_data gpio1_plat_data = {
 119         .gpio_base      = 8,
 120         .irq_base       = -1,
 121 };
 122
 123 static struct pl061_platform_data gpio2_plat_data = {
 124         .gpio_base      = 16,
 125         .irq_base       = -1,
 126 };
 127
 128 static struct pl022_ssp_controller ssp0_plat_data = {
 129         .bus_id = 0,
 130         .enable_dma = 0,
 131         .num_chipselect = 1,
 132 };
 133
 134 /*
 135  * RealView PB11MPCore AMBA devices
 136  */
 137
 138 #define GPIO2_IRQ               { IRQ_PB11MP_GPIO2, NO_IRQ }
 139 #define GPIO2_DMA               { 0, 0 }
 140 #define GPIO3_IRQ               { IRQ_PB11MP_GPIO3, NO_IRQ }
 141 #define GPIO3_DMA               { 0, 0 }
 142 #define AACI_IRQ                { IRQ_TC11MP_AACI, NO_IRQ }
 143 #define AACI_DMA                { 0x80, 0x81 }
 144 #define MMCI0_IRQ               { IRQ_TC11MP_MMCI0A, IRQ_TC11MP_MMCI0B }
 145 #define MMCI0_DMA               { 0x84, 0 }
 146 #define KMI0_IRQ                { IRQ_TC11MP_KMI0, NO_IRQ }
 147 #define KMI0_DMA                { 0, 0 }
 148 #define KMI1_IRQ                { IRQ_TC11MP_KMI1, NO_IRQ }
 149 #define KMI1_DMA                { 0, 0 }
 150 #define PB11MP_SMC_IRQ          { NO_IRQ, NO_IRQ }
 151 #define PB11MP_SMC_DMA          { 0, 0 }
 152 #define MPMC_IRQ                { NO_IRQ, NO_IRQ }
 153 #define MPMC_DMA                { 0, 0 }
 154 #define PB11MP_CLCD_IRQ         { IRQ_PB11MP_CLCD, NO_IRQ }
 155 #define PB11MP_CLCD_DMA         { 0, 0 }
 156 #define DMAC_IRQ                { IRQ_PB11MP_DMAC, NO_IRQ }
 157 #define DMAC_DMA                { 0, 0 }
 158 #define SCTL_IRQ                { NO_IRQ, NO_IRQ }
 159 #define SCTL_DMA                { 0, 0 }
 160 #define PB11MP_WATCHDOG_IRQ     { IRQ_PB11MP_WATCHDOG, NO_IRQ }
 161 #define PB11MP_WATCHDOG_DMA     { 0, 0 }
 162 #define PB11MP_GPIO0_IRQ        { IRQ_PB11MP_GPIO0, NO_IRQ }
 163 #define PB11MP_GPIO0_DMA        { 0, 0 }
 164 #define GPIO1_IRQ               { IRQ_PB11MP_GPIO1, NO_IRQ }
 165 #define GPIO1_DMA               { 0, 0 }
 166 #define PB11MP_RTC_IRQ          { IRQ_TC11MP_RTC, NO_IRQ }
 167 #define PB11MP_RTC_DMA          { 0, 0 }
 168 #define SCI_IRQ                 { IRQ_PB11MP_SCI, NO_IRQ }
 169 #define SCI_DMA                 { 7, 6 }
 170 #define PB11MP_UART0_IRQ        { IRQ_TC11MP_UART0, NO_IRQ }
 171 #define PB11MP_UART0_DMA        { 15, 14 }
 172 #define PB11MP_UART1_IRQ        { IRQ_TC11MP_UART1, NO_IRQ }
 173 #define PB11MP_UART1_DMA        { 13, 12 }
 174 #define PB11MP_UART2_IRQ        { IRQ_PB11MP_UART2, NO_IRQ }
 175 #define PB11MP_UART2_DMA        { 11, 10 }
 176 #define PB11MP_UART3_IRQ        { IRQ_PB11MP_UART3, NO_IRQ }
 177 #define PB11MP_UART3_DMA        { 0x86, 0x87 }
 178 #define PB11MP_SSP_IRQ          { IRQ_PB11MP_SSP, NO_IRQ }
 179 #define PB11MP_SSP_DMA          { 9, 8 }
 180
 181 /* FPGA Primecells */
 182 AMBA_DEVICE(aaci,       "fpga:aaci",    AACI,           NULL);
 183 AMBA_DEVICE(mmc0,       "fpga:mmc0",    MMCI0,          &realview_mmc0_plat_data);
 184 AMBA_DEVICE(kmi0,       "fpga:kmi0",    KMI0,           NULL);
 185 AMBA_DEVICE(kmi1,       "fpga:kmi1",    KMI1,           NULL);
 186 AMBA_DEVICE(uart3,      "fpga:uart3",   PB11MP_UART3,   NULL);
 187
 188 /* DevChip Primecells */
 189 AMBA_DEVICE(smc,        "dev:smc",      PB11MP_SMC,     NULL);
 190 AMBA_DEVICE(sctl,       "dev:sctl",     SCTL,           NULL);
 191 AMBA_DEVICE(wdog,       "dev:wdog",     PB11MP_WATCHDOG, NULL);
 192 AMBA_DEVICE(gpio0,      "dev:gpio0",    PB11MP_GPIO0,   &gpio0_plat_data);
 193 AMBA_DEVICE(gpio1,      "dev:gpio1",    GPIO1,          &gpio1_plat_data);
 194 AMBA_DEVICE(gpio2,      "dev:gpio2",    GPIO2,          &gpio2_plat_data);
 195 AMBA_DEVICE(rtc,        "dev:rtc",      PB11MP_RTC,     NULL);
 196 AMBA_DEVICE(sci0,       "dev:sci0",     SCI,            NULL);
 197 AMBA_DEVICE(uart0,      "dev:uart0",    PB11MP_UART0,   NULL);
 198 AMBA_DEVICE(uart1,      "dev:uart1",    PB11MP_UART1,   NULL);
 199 AMBA_DEVICE(uart2,      "dev:uart2",    PB11MP_UART2,   NULL);
 200 AMBA_DEVICE(ssp0,       "dev:ssp0",     PB11MP_SSP,     &ssp0_plat_data);
 201
 202 /* Primecells on the NEC ISSP chip */
 203 AMBA_DEVICE(clcd,       "issp:clcd",    PB11MP_CLCD,    &clcd_plat_data);
 204 AMBA_DEVICE(dmac,       "issp:dmac",    DMAC,           NULL);
 205
 206 static struct amba_device *amba_devs[] __initdata = {
 207         &dmac_device,
 208         &uart0_device,
 209         &uart1_device,
 210         &uart2_device,
 211         &uart3_device,
 212         &smc_device,
 213         &clcd_device,
 214         &sctl_device,
 215         &wdog_device,
 216         &gpio0_device,
 217         &gpio1_device,
 218         &gpio2_device,
 219         &rtc_device,
 220         &sci0_device,
 221         &ssp0_device,
 222         &aaci_device,
 223         &mmc0_device,
 224         &kmi0_device,
 225         &kmi1_device,
 226 };
 227
 228 /*
 229  * RealView PB11MPCore platform devices
 230  */
 231 static struct resource realview_pb11mp_flash_resource[] = {
 232         [0] = {
 233                 .start          = REALVIEW_PB11MP_FLASH0_BASE,
 234                 .end            = REALVIEW_PB11MP_FLASH0_BASE + REALVIEW_PB11MP_FLASH0_SIZE - 1,
 235                 .flags          = IORESOURCE_MEM,
 236         },
 237         [1] = {
 238                 .start          = REALVIEW_PB11MP_FLASH1_BASE,
 239                 .end            = REALVIEW_PB11MP_FLASH1_BASE + REALVIEW_PB11MP_FLASH1_SIZE - 1,
 240                 .flags          = IORESOURCE_MEM,
 241         },
 242 };
 243
 244 static struct resource realview_pb11mp_smsc911x_resources[] = {
 245         [0] = {
 246                 .start          = REALVIEW_PB11MP_ETH_BASE,
 247                 .end            = REALVIEW_PB11MP_ETH_BASE + SZ_64K - 1,
 248                 .flags          = IORESOURCE_MEM,
 249         },
 250         [1] = {
 251                 .start          = IRQ_TC11MP_ETH,
 252                 .end            = IRQ_TC11MP_ETH,
 253                 .flags          = IORESOURCE_IRQ,
 254         },
 255 };
 256
 257 static struct resource realview_pb11mp_isp1761_resources[] = {
 258         [0] = {
 259                 .start          = REALVIEW_PB11MP_USB_BASE,
 260                 .end            = REALVIEW_PB11MP_USB_BASE + SZ_128K - 1,
 261                 .flags          = IORESOURCE_MEM,
 262         },
 263         [1] = {
 264                 .start          = IRQ_TC11MP_USB,
 265                 .end            = IRQ_TC11MP_USB,
 266                 .flags          = IORESOURCE_IRQ,
 267         },
 268 };
 269
 270 static struct resource pmu_resources[] = {
 271         [0] = {
 272                 .start          = IRQ_TC11MP_PMU_CPU0,
 273                 .end            = IRQ_TC11MP_PMU_CPU0,
 274                 .flags          = IORESOURCE_IRQ,
 275         },
 276         [1] = {
 277                 .start          = IRQ_TC11MP_PMU_CPU1,
 278                 .end            = IRQ_TC11MP_PMU_CPU1,
 279                 .flags          = IORESOURCE_IRQ,
 280         },
 281         [2] = {
 282                 .start          = IRQ_TC11MP_PMU_CPU2,
 283                 .end            = IRQ_TC11MP_PMU_CPU2,
 284                 .flags          = IORESOURCE_IRQ,
 285         },
 286         [3] = {
 287                 .start          = IRQ_TC11MP_PMU_CPU3,
 288                 .end            = IRQ_TC11MP_PMU_CPU3,
 289                 .flags          = IORESOURCE_IRQ,
 290         },
 291 };
 292
 293 static struct platform_device pmu_device = {
 294         .name                   = "arm-pmu",
 295         .id                     = ARM_PMU_DEVICE_CPU,
 296         .num_resources          = ARRAY_SIZE(pmu_resources),
 297         .resource               = pmu_resources,
 298 };
 299
 300 static void __init gic_init_irq(void)
 301 {
 302         unsigned int pldctrl;
 303
 304         /* new irq mode with no DCC */
 305         writel(0x0000a05f, __io_address(REALVIEW_SYS_LOCK));
 306         pldctrl = readl(__io_address(REALVIEW_SYS_BASE) + REALVIEW_PB11MP_SYS_PLD_CTRL1);
 307         pldctrl |= 2 << 22;
 308         writel(pldctrl, __io_address(REALVIEW_SYS_BASE) + REALVIEW_PB11MP_SYS_PLD_CTRL1);
 309         writel(0x00000000, __io_address(REALVIEW_SYS_LOCK));
 310
 311         /* ARM11MPCore test chip GIC, primary */
 312         gic_cpu_base_addr = __io_address(REALVIEW_TC11MP_GIC_CPU_BASE);
 313         gic_dist_init(0, __io_address(REALVIEW_TC11MP_GIC_DIST_BASE), 29);
 314         gic_cpu_init(0, gic_cpu_base_addr);
 315
 316         /* board GIC, secondary */
 317         gic_dist_init(1, __io_address(REALVIEW_PB11MP_GIC_DIST_BASE), IRQ_PB11MP_GIC_START);
 318         gic_cpu_init(1, __io_address(REALVIEW_PB11MP_GIC_CPU_BASE));
 319         gic_cascade_irq(1, IRQ_TC11MP_PB_IRQ1);
 320 }
 321
 322 static void __init realview_pb11mp_timer_init(void)
 323 {
 324         timer0_va_base = __io_address(REALVIEW_PB11MP_TIMER0_1_BASE);
 325         timer1_va_base = __io_address(REALVIEW_PB11MP_TIMER0_1_BASE) + 0x20;
 326         timer2_va_base = __io_address(REALVIEW_PB11MP_TIMER2_3_BASE);
 327         timer3_va_base = __io_address(REALVIEW_PB11MP_TIMER2_3_BASE) + 0x20;
 328
 329 #ifdef CONFIG_LOCAL_TIMERS
 330         twd_base = __io_address(REALVIEW_TC11MP_TWD_BASE);
 331 #endif
 332         realview_timer_init(IRQ_TC11MP_TIMER0_1);
 333 }
 334
 335 static struct sys_timer realview_pb11mp_timer = {
 336         .init           = realview_pb11mp_timer_init,
 337 };
 338
 339 static void realview_pb11mp_reset(char mode)
 340 {
 341         void __iomem *reset_ctrl = __io_address(REALVIEW_SYS_RESETCTL);
 342         void __iomem *lock_ctrl = __io_address(REALVIEW_SYS_LOCK);
 343
 344         /*
 345          * To reset, we hit the on-board reset register
 346          * in the system FPGA
 347          */
 348         __raw_writel(REALVIEW_SYS_LOCK_VAL, lock_ctrl);
 349         __raw_writel(0x0000, reset_ctrl);
 350         __raw_writel(0x0004, reset_ctrl);
 351 }
 352
 353 static void __init realview_pb11mp_init(void)
 354 {
 355         int i;
 356
 357 #ifdef CONFIG_CACHE_L2X0
 358         /* 1MB (128KB/way), 8-way associativity, evmon/parity/share enabled
 359          * Bits:  .... ...0 0111 1001 0000 .... .... .... */
 360         l2x0_init(__io_address(REALVIEW_TC11MP_L220_BASE), 0x00790000, 0xfe000fff);
 361 #endif
 362
 363         realview_flash_register(realview_pb11mp_flash_resource,
 364                                 ARRAY_SIZE(realview_pb11mp_flash_resource));
 365         realview_eth_register(NULL, realview_pb11mp_smsc911x_resources);
 366         platform_device_register(&realview_i2c_device);
 367         platform_device_register(&realview_cf_device);
 368         realview_usb_register(realview_pb11mp_isp1761_resources);
 369         platform_device_register(&pmu_device);
 370
 371         for (i = 0; i < ARRAY_SIZE(amba_devs); i++) {
 372                 struct amba_device *d = amba_devs[i];
 373                 amba_device_register(d, &iomem_resource);
 374         }
 375
 376 #ifdef CONFIG_LEDS
 377         leds_event = realview_leds_event;
 378 #endif
 379         realview_reset = realview_pb11mp_reset;
 380 }
 381
 382 MACHINE_START(REALVIEW_PB11MP, "ARM-RealView PB11MPCore")
 383         /* Maintainer: ARM Ltd/Deep Blue Solutions Ltd */
 384         .boot_params    = PHYS_OFFSET + 0x00000100,
 385         .fixup          = realview_fixup,
 386         .map_io         = realview_pb11mp_map_io,
 387         .init_irq       = gic_init_irq,
 388         .timer          = &realview_pb11mp_timer,
 389         .init_machine   = realview_pb11mp_init,
 390 MACHINE_END