arch/arm/mach-realview/realview_pb1176.c

   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/io.h>
  29
  30 #include <mach/hardware.h>
  31 #include <asm/irq.h>
  32 #include <asm/leds.h>
  33 #include <asm/mach-types.h>
  34 #include <asm/pmu.h>
  35 #include <asm/hardware/gic.h>
  36 #include <asm/hardware/cache-l2x0.h>
  37
  38 #include <asm/mach/arch.h>
  39 #include <asm/mach/flash.h>
  40 #include <asm/mach/map.h>
  41 #include <asm/mach/time.h>
  42
  43 #include <mach/board-pb1176.h>
  44 #include <mach/irqs.h>
  45
  46 #include "core.h"
  47
  48 static struct map_desc realview_pb1176_io_desc[] __initdata = {
  49         {
  50                 .virtual        = IO_ADDRESS(REALVIEW_SYS_BASE),
  51                 .pfn            = __phys_to_pfn(REALVIEW_SYS_BASE),
  52                 .length         = SZ_4K,
  53                 .type           = MT_DEVICE,
  54         }, {
  55                 .virtual        = IO_ADDRESS(REALVIEW_PB1176_GIC_CPU_BASE),
  56                 .pfn            = __phys_to_pfn(REALVIEW_PB1176_GIC_CPU_BASE),
  57                 .length         = SZ_4K,
  58                 .type           = MT_DEVICE,
  59         }, {
  60                 .virtual        = IO_ADDRESS(REALVIEW_PB1176_GIC_DIST_BASE),
  61                 .pfn            = __phys_to_pfn(REALVIEW_PB1176_GIC_DIST_BASE),
  62                 .length         = SZ_4K,
  63                 .type           = MT_DEVICE,
  64         }, {
  65                 .virtual        = IO_ADDRESS(REALVIEW_DC1176_GIC_CPU_BASE),
  66                 .pfn            = __phys_to_pfn(REALVIEW_DC1176_GIC_CPU_BASE),
  67                 .length         = SZ_4K,
  68                 .type           = MT_DEVICE,
  69         }, {
  70                 .virtual        = IO_ADDRESS(REALVIEW_DC1176_GIC_DIST_BASE),
  71                 .pfn            = __phys_to_pfn(REALVIEW_DC1176_GIC_DIST_BASE),
  72                 .length         = SZ_4K,
  73                 .type           = MT_DEVICE,
  74         }, {
  75                 .virtual        = IO_ADDRESS(REALVIEW_SCTL_BASE),
  76                 .pfn            = __phys_to_pfn(REALVIEW_SCTL_BASE),
  77                 .length         = SZ_4K,
  78                 .type           = MT_DEVICE,
  79         }, {
  80                 .virtual        = IO_ADDRESS(REALVIEW_PB1176_TIMER0_1_BASE),
  81                 .pfn            = __phys_to_pfn(REALVIEW_PB1176_TIMER0_1_BASE),
  82                 .length         = SZ_4K,
  83                 .type           = MT_DEVICE,
  84         }, {
  85                 .virtual        = IO_ADDRESS(REALVIEW_PB1176_TIMER2_3_BASE),
  86                 .pfn            = __phys_to_pfn(REALVIEW_PB1176_TIMER2_3_BASE),
  87                 .length         = SZ_4K,
  88                 .type           = MT_DEVICE,
  89         }, {
  90                 .virtual        = IO_ADDRESS(REALVIEW_PB1176_L220_BASE),
  91                 .pfn            = __phys_to_pfn(REALVIEW_PB1176_L220_BASE),
  92                 .length         = SZ_8K,
  93                 .type           = MT_DEVICE,
  94         },
  95 #ifdef CONFIG_DEBUG_LL
  96         {
  97                 .virtual        = IO_ADDRESS(REALVIEW_PB1176_UART0_BASE),
  98                 .pfn            = __phys_to_pfn(REALVIEW_PB1176_UART0_BASE),
  99                 .length         = SZ_4K,
 100                 .type           = MT_DEVICE,
 101         },
 102 #endif
 103 };
 104
 105 static void __init realview_pb1176_map_io(void)
 106 {
 107         iotable_init(realview_pb1176_io_desc, ARRAY_SIZE(realview_pb1176_io_desc));
 108 }
 109
 110 static struct pl061_platform_data gpio0_plat_data = {
 111         .gpio_base      = 0,
 112         .irq_base       = -1,
 113 };
 114
 115 static struct pl061_platform_data gpio1_plat_data = {
 116         .gpio_base      = 8,
 117         .irq_base       = -1,
 118 };
 119
 120 static struct pl061_platform_data gpio2_plat_data = {
 121         .gpio_base      = 16,
 122         .irq_base       = -1,
 123 };
 124
 125 /*
 126  * RealView PB1176 AMBA devices
 127  */
 128 #define GPIO2_IRQ       { IRQ_PB1176_GPIO2, NO_IRQ }
 129 #define GPIO2_DMA       { 0, 0 }
 130 #define GPIO3_IRQ       { IRQ_PB1176_GPIO3, NO_IRQ }
 131 #define GPIO3_DMA       { 0, 0 }
 132 #define AACI_IRQ        { IRQ_PB1176_AACI, NO_IRQ }
 133 #define AACI_DMA        { 0x80, 0x81 }
 134 #define MMCI0_IRQ       { IRQ_PB1176_MMCI0A, IRQ_PB1176_MMCI0B }
 135 #define MMCI0_DMA       { 0x84, 0 }
 136 #define KMI0_IRQ        { IRQ_PB1176_KMI0, NO_IRQ }
 137 #define KMI0_DMA        { 0, 0 }
 138 #define KMI1_IRQ        { IRQ_PB1176_KMI1, NO_IRQ }
 139 #define KMI1_DMA        { 0, 0 }
 140 #define PB1176_SMC_IRQ  { NO_IRQ, NO_IRQ }
 141 #define PB1176_SMC_DMA  { 0, 0 }
 142 #define MPMC_IRQ        { NO_IRQ, NO_IRQ }
 143 #define MPMC_DMA        { 0, 0 }
 144 #define PB1176_CLCD_IRQ { IRQ_DC1176_CLCD, NO_IRQ }
 145 #define PB1176_CLCD_DMA { 0, 0 }
 146 #define DMAC_IRQ        { IRQ_PB1176_DMAC, NO_IRQ }
 147 #define DMAC_DMA        { 0, 0 }
 148 #define SCTL_IRQ        { NO_IRQ, NO_IRQ }
 149 #define SCTL_DMA        { 0, 0 }
 150 #define PB1176_WATCHDOG_IRQ     { IRQ_DC1176_WATCHDOG, NO_IRQ }
 151 #define PB1176_WATCHDOG_DMA     { 0, 0 }
 152 #define PB1176_GPIO0_IRQ        { IRQ_PB1176_GPIO0, NO_IRQ }
 153 #define PB1176_GPIO0_DMA        { 0, 0 }
 154 #define GPIO1_IRQ       { IRQ_PB1176_GPIO1, NO_IRQ }
 155 #define GPIO1_DMA       { 0, 0 }
 156 #define PB1176_RTC_IRQ  { IRQ_DC1176_RTC, NO_IRQ }
 157 #define PB1176_RTC_DMA  { 0, 0 }
 158 #define SCI_IRQ         { IRQ_PB1176_SCI, NO_IRQ }
 159 #define SCI_DMA         { 7, 6 }
 160 #define PB1176_UART0_IRQ        { IRQ_DC1176_UART0, NO_IRQ }
 161 #define PB1176_UART0_DMA        { 15, 14 }
 162 #define PB1176_UART1_IRQ        { IRQ_DC1176_UART1, NO_IRQ }
 163 #define PB1176_UART1_DMA        { 13, 12 }
 164 #define PB1176_UART2_IRQ        { IRQ_DC1176_UART2, NO_IRQ }
 165 #define PB1176_UART2_DMA        { 11, 10 }
 166 #define PB1176_UART3_IRQ        { IRQ_DC1176_UART3, NO_IRQ }
 167 #define PB1176_UART3_DMA        { 0x86, 0x87 }
 168 #define PB1176_SSP_IRQ          { IRQ_PB1176_SSP, NO_IRQ }
 169 #define PB1176_SSP_DMA          { 9, 8 }
 170
 171 /* FPGA Primecells */
 172 AMBA_DEVICE(aaci,       "fpga:aaci",    AACI,           NULL);
 173 AMBA_DEVICE(mmc0,       "fpga:mmc0",    MMCI0,          &realview_mmc0_plat_data);
 174 AMBA_DEVICE(kmi0,       "fpga:kmi0",    KMI0,           NULL);
 175 AMBA_DEVICE(kmi1,       "fpga:kmi1",    KMI1,           NULL);
 176 AMBA_DEVICE(uart3,      "fpga:uart3",   PB1176_UART3,   NULL);
 177
 178 /* DevChip Primecells */
 179 AMBA_DEVICE(smc,        "dev:smc",      PB1176_SMC,     NULL);
 180 AMBA_DEVICE(sctl,       "dev:sctl",     SCTL,           NULL);
 181 AMBA_DEVICE(wdog,       "dev:wdog",     PB1176_WATCHDOG,        NULL);
 182 AMBA_DEVICE(gpio0,      "dev:gpio0",    PB1176_GPIO0,   &gpio0_plat_data);
 183 AMBA_DEVICE(gpio1,      "dev:gpio1",    GPIO1,          &gpio1_plat_data);
 184 AMBA_DEVICE(gpio2,      "dev:gpio2",    GPIO2,          &gpio2_plat_data);
 185 AMBA_DEVICE(rtc,        "dev:rtc",      PB1176_RTC,     NULL);
 186 AMBA_DEVICE(sci0,       "dev:sci0",     SCI,            NULL);
 187 AMBA_DEVICE(uart0,      "dev:uart0",    PB1176_UART0,   NULL);
 188 AMBA_DEVICE(uart1,      "dev:uart1",    PB1176_UART1,   NULL);
 189 AMBA_DEVICE(uart2,      "dev:uart2",    PB1176_UART2,   NULL);
 190 AMBA_DEVICE(ssp0,       "dev:ssp0",     PB1176_SSP,     NULL);
 191
 192 /* Primecells on the NEC ISSP chip */
 193 AMBA_DEVICE(clcd,       "issp:clcd",    PB1176_CLCD,    &clcd_plat_data);
 194 //AMBA_DEVICE(dmac,     "issp:dmac",    PB1176_DMAC,    NULL);
 195
 196 static struct amba_device *amba_devs[] __initdata = {
 197 //      &dmac_device,
 198         &uart0_device,
 199         &uart1_device,
 200         &uart2_device,
 201         &uart3_device,
 202         &smc_device,
 203         &clcd_device,
 204         &sctl_device,
 205         &wdog_device,
 206         &gpio0_device,
 207         &gpio1_device,
 208         &gpio2_device,
 209         &rtc_device,
 210         &sci0_device,
 211         &ssp0_device,
 212         &aaci_device,
 213         &mmc0_device,
 214         &kmi0_device,
 215         &kmi1_device,
 216 };
 217
 218 /*
 219  * RealView PB1176 platform devices
 220  */
 221 static struct resource realview_pb1176_flash_resources[] = {
 222         [0] = {
 223                 .start          = REALVIEW_PB1176_FLASH_BASE,
 224                 .end            = REALVIEW_PB1176_FLASH_BASE + REALVIEW_PB1176_FLASH_SIZE - 1,
 225                 .flags          = IORESOURCE_MEM,
 226         },
 227         [1] = {
 228                 .start          = REALVIEW_PB1176_SEC_FLASH_BASE,
 229                 .end            = REALVIEW_PB1176_SEC_FLASH_BASE + REALVIEW_PB1176_SEC_FLASH_SIZE - 1,
 230                 .flags          = IORESOURCE_MEM,
 231         },
 232 };
 233 #ifdef CONFIG_REALVIEW_PB1176_SECURE_FLASH
 234 #define PB1176_FLASH_BLOCKS     2
 235 #else
 236 #define PB1176_FLASH_BLOCKS     1
 237 #endif
 238
 239 static struct resource realview_pb1176_smsc911x_resources[] = {
 240         [0] = {
 241                 .start          = REALVIEW_PB1176_ETH_BASE,
 242                 .end            = REALVIEW_PB1176_ETH_BASE + SZ_64K - 1,
 243                 .flags          = IORESOURCE_MEM,
 244         },
 245         [1] = {
 246                 .start          = IRQ_PB1176_ETH,
 247                 .end            = IRQ_PB1176_ETH,
 248                 .flags          = IORESOURCE_IRQ,
 249         },
 250 };
 251
 252 static struct resource realview_pb1176_isp1761_resources[] = {
 253         [0] = {
 254                 .start          = REALVIEW_PB1176_USB_BASE,
 255                 .end            = REALVIEW_PB1176_USB_BASE + SZ_128K - 1,
 256                 .flags          = IORESOURCE_MEM,
 257         },
 258         [1] = {
 259                 .start          = IRQ_PB1176_USB,
 260                 .end            = IRQ_PB1176_USB,
 261                 .flags          = IORESOURCE_IRQ,
 262         },
 263 };
 264
 265 static struct resource pmu_resource = {
 266         .start          = IRQ_DC1176_CORE_PMU,
 267         .end            = IRQ_DC1176_CORE_PMU,
 268         .flags          = IORESOURCE_IRQ,
 269 };
 270
 271 static struct platform_device pmu_device = {
 272         .name                   = "arm-pmu",
 273         .id                     = ARM_PMU_DEVICE_CPU,
 274         .num_resources          = 1,
 275         .resource               = &pmu_resource,
 276 };
 277
 278 static void __init gic_init_irq(void)
 279 {
 280         /* ARM1176 DevChip GIC, primary */
 281         gic_cpu_base_addr = __io_address(REALVIEW_DC1176_GIC_CPU_BASE);
 282         gic_dist_init(0, __io_address(REALVIEW_DC1176_GIC_DIST_BASE), IRQ_DC1176_GIC_START);
 283         gic_cpu_init(0, gic_cpu_base_addr);
 284
 285         /* board GIC, secondary */
 286         gic_dist_init(1, __io_address(REALVIEW_PB1176_GIC_DIST_BASE), IRQ_PB1176_GIC_START);
 287         gic_cpu_init(1, __io_address(REALVIEW_PB1176_GIC_CPU_BASE));
 288         gic_cascade_irq(1, IRQ_DC1176_PB_IRQ1);
 289 }
 290
 291 static void __init realview_pb1176_timer_init(void)
 292 {
 293         timer0_va_base = __io_address(REALVIEW_PB1176_TIMER0_1_BASE);
 294         timer1_va_base = __io_address(REALVIEW_PB1176_TIMER0_1_BASE) + 0x20;
 295         timer2_va_base = __io_address(REALVIEW_PB1176_TIMER2_3_BASE);
 296         timer3_va_base = __io_address(REALVIEW_PB1176_TIMER2_3_BASE) + 0x20;
 297
 298         realview_timer_init(IRQ_DC1176_TIMER0);
 299 }
 300
 301 static struct sys_timer realview_pb1176_timer = {
 302         .init           = realview_pb1176_timer_init,
 303 };
 304
 305 static void realview_pb1176_reset(char mode)
 306 {
 307         void __iomem *reset_ctrl = __io_address(REALVIEW_SYS_RESETCTL);
 308         void __iomem *lock_ctrl = __io_address(REALVIEW_SYS_LOCK);
 309         __raw_writel(REALVIEW_SYS_LOCK_VAL, lock_ctrl);
 310         __raw_writel(REALVIEW_PB1176_SYS_SOFT_RESET, reset_ctrl);
 311 }
 312
 313 static void realview_pb1176_fixup(struct machine_desc *mdesc,
 314                                   struct tag *tags, char **from,
 315                                   struct meminfo *meminfo)
 316 {
 317         /*
 318          * RealView PB1176 only has 128MB of RAM mapped at 0.
 319          */
 320         meminfo->bank[0].start = 0;
 321         meminfo->bank[0].size = SZ_128M;
 322         meminfo->nr_banks = 1;
 323 }
 324
 325 static void __init realview_pb1176_init(void)
 326 {
 327         int i;
 328
 329 #ifdef CONFIG_CACHE_L2X0
 330         /* 128Kb (16Kb/way) 8-way associativity. evmon/parity/share enabled. */
 331         l2x0_init(__io_address(REALVIEW_PB1176_L220_BASE), 0x00730000, 0xfe000fff);
 332 #endif
 333
 334         realview_flash_register(realview_pb1176_flash_resources,
 335                                 PB1176_FLASH_BLOCKS);
 336         realview_eth_register(NULL, realview_pb1176_smsc911x_resources);
 337         platform_device_register(&realview_i2c_device);
 338         realview_usb_register(realview_pb1176_isp1761_resources);
 339         platform_device_register(&pmu_device);
 340
 341         for (i = 0; i < ARRAY_SIZE(amba_devs); i++) {
 342                 struct amba_device *d = amba_devs[i];
 343                 amba_device_register(d, &iomem_resource);
 344         }
 345
 346 #ifdef CONFIG_LEDS
 347         leds_event = realview_leds_event;
 348 #endif
 349         realview_reset = realview_pb1176_reset;
 350 }
 351
 352 MACHINE_START(REALVIEW_PB1176, "ARM-RealView PB1176")
 353         /* Maintainer: ARM Ltd/Deep Blue Solutions Ltd */
 354         .phys_io        = REALVIEW_PB1176_UART0_BASE,
 355         .io_pg_offst    = (IO_ADDRESS(REALVIEW_PB1176_UART0_BASE) >> 18) & 0xfffc,
 356         .boot_params    = PHYS_OFFSET + 0x00000100,
 357         .fixup          = realview_pb1176_fixup,
 358         .map_io         = realview_pb1176_map_io,
 359         .init_irq       = gic_init_irq,
 360         .timer          = &realview_pb1176_timer,
 361         .init_machine   = realview_pb1176_init,
 362 MACHINE_END