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/io.h>
  27
  28 #include <mach/hardware.h>
  29 #include <asm/irq.h>
  30 #include <asm/leds.h>
  31 #include <asm/mach-types.h>
  32 #include <asm/hardware/gic.h>
  33 #include <asm/hardware/icst307.h>
  34 #include <asm/hardware/cache-l2x0.h>
  35
  36 #include <asm/mach/arch.h>
  37 #include <asm/mach/flash.h>
  38 #include <asm/mach/map.h>
  39 #include <asm/mach/mmc.h>
  40 #include <asm/mach/time.h>
  41
  42 #include <mach/board-pb11mp.h>
  43 #include <mach/irqs.h>
  44
  45 #include "core.h"
  46 #include "clock.h"
  47
  48 static struct map_desc realview_pb11mp_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_PB11MP_GIC_CPU_BASE),
  56                 .pfn            = __phys_to_pfn(REALVIEW_PB11MP_GIC_CPU_BASE),
  57                 .length         = SZ_4K,
  58                 .type           = MT_DEVICE,
  59         }, {
  60                 .virtual        = IO_ADDRESS(REALVIEW_PB11MP_GIC_DIST_BASE),
  61                 .pfn            = __phys_to_pfn(REALVIEW_PB11MP_GIC_DIST_BASE),
  62                 .length         = SZ_4K,
  63                 .type           = MT_DEVICE,
  64         }, {
  65                 .virtual        = IO_ADDRESS(REALVIEW_TC11MP_GIC_CPU_BASE),
  66                 .pfn            = __phys_to_pfn(REALVIEW_TC11MP_GIC_CPU_BASE),
  67                 .length         = SZ_4K,
  68                 .type           = MT_DEVICE,
  69         }, {
  70                 .virtual        = IO_ADDRESS(REALVIEW_TC11MP_GIC_DIST_BASE),
  71                 .pfn            = __phys_to_pfn(REALVIEW_TC11MP_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_PB11MP_TIMER0_1_BASE),
  81                 .pfn            = __phys_to_pfn(REALVIEW_PB11MP_TIMER0_1_BASE),
  82                 .length         = SZ_4K,
  83                 .type           = MT_DEVICE,
  84         }, {
  85                 .virtual        = IO_ADDRESS(REALVIEW_PB11MP_TIMER2_3_BASE),
  86                 .pfn            = __phys_to_pfn(REALVIEW_PB11MP_TIMER2_3_BASE),
  87                 .length         = SZ_4K,
  88                 .type           = MT_DEVICE,
  89         }, {
  90                 .virtual        = IO_ADDRESS(REALVIEW_TC11MP_L220_BASE),
  91                 .pfn            = __phys_to_pfn(REALVIEW_TC11MP_L220_BASE),
  92                 .length         = SZ_8K,
  93                 .type           = MT_DEVICE,
  94         },
  95 #ifdef CONFIG_DEBUG_LL
  96         {
  97                 .virtual        = IO_ADDRESS(REALVIEW_PB11MP_UART0_BASE),
  98                 .pfn            = __phys_to_pfn(REALVIEW_PB11MP_UART0_BASE),
  99                 .length         = SZ_4K,
 100                 .type           = MT_DEVICE,
 101         },
 102 #endif
 103 };
 104
 105 static void __init realview_pb11mp_map_io(void)
 106 {
 107         iotable_init(realview_pb11mp_io_desc, ARRAY_SIZE(realview_pb11mp_io_desc));
 108 }
 109
 110 /*
 111  * RealView PB11MPCore AMBA devices
 112  */
 113
 114 #define GPIO2_IRQ               { IRQ_PB11MP_GPIO2, NO_IRQ }
 115 #define GPIO2_DMA               { 0, 0 }
 116 #define GPIO3_IRQ               { IRQ_PB11MP_GPIO3, NO_IRQ }
 117 #define GPIO3_DMA               { 0, 0 }
 118 #define AACI_IRQ                { IRQ_TC11MP_AACI, NO_IRQ }
 119 #define AACI_DMA                { 0x80, 0x81 }
 120 #define MMCI0_IRQ               { IRQ_TC11MP_MMCI0A, IRQ_TC11MP_MMCI0B }
 121 #define MMCI0_DMA               { 0x84, 0 }
 122 #define KMI0_IRQ                { IRQ_TC11MP_KMI0, NO_IRQ }
 123 #define KMI0_DMA                { 0, 0 }
 124 #define KMI1_IRQ                { IRQ_TC11MP_KMI1, NO_IRQ }
 125 #define KMI1_DMA                { 0, 0 }
 126 #define PB11MP_SMC_IRQ          { NO_IRQ, NO_IRQ }
 127 #define PB11MP_SMC_DMA          { 0, 0 }
 128 #define MPMC_IRQ                { NO_IRQ, NO_IRQ }
 129 #define MPMC_DMA                { 0, 0 }
 130 #define PB11MP_CLCD_IRQ         { IRQ_PB11MP_CLCD, NO_IRQ }
 131 #define PB11MP_CLCD_DMA         { 0, 0 }
 132 #define DMAC_IRQ                { IRQ_PB11MP_DMAC, NO_IRQ }
 133 #define DMAC_DMA                { 0, 0 }
 134 #define SCTL_IRQ                { NO_IRQ, NO_IRQ }
 135 #define SCTL_DMA                { 0, 0 }
 136 #define PB11MP_WATCHDOG_IRQ     { IRQ_PB11MP_WATCHDOG, NO_IRQ }
 137 #define PB11MP_WATCHDOG_DMA     { 0, 0 }
 138 #define PB11MP_GPIO0_IRQ        { IRQ_PB11MP_GPIO0, NO_IRQ }
 139 #define PB11MP_GPIO0_DMA        { 0, 0 }
 140 #define GPIO1_IRQ               { IRQ_PB11MP_GPIO1, NO_IRQ }
 141 #define GPIO1_DMA               { 0, 0 }
 142 #define PB11MP_RTC_IRQ          { IRQ_TC11MP_RTC, NO_IRQ }
 143 #define PB11MP_RTC_DMA          { 0, 0 }
 144 #define SCI_IRQ                 { IRQ_PB11MP_SCI, NO_IRQ }
 145 #define SCI_DMA                 { 7, 6 }
 146 #define PB11MP_UART0_IRQ        { IRQ_TC11MP_UART0, NO_IRQ }
 147 #define PB11MP_UART0_DMA        { 15, 14 }
 148 #define PB11MP_UART1_IRQ        { IRQ_TC11MP_UART1, NO_IRQ }
 149 #define PB11MP_UART1_DMA        { 13, 12 }
 150 #define PB11MP_UART2_IRQ        { IRQ_PB11MP_UART2, NO_IRQ }
 151 #define PB11MP_UART2_DMA        { 11, 10 }
 152 #define PB11MP_UART3_IRQ        { IRQ_PB11MP_UART3, NO_IRQ }
 153 #define PB11MP_UART3_DMA        { 0x86, 0x87 }
 154 #define PB11MP_SSP_IRQ          { IRQ_PB11MP_SSP, NO_IRQ }
 155 #define PB11MP_SSP_DMA          { 9, 8 }
 156
 157 /* FPGA Primecells */
 158 AMBA_DEVICE(aaci,       "fpga:04",      AACI,           NULL);
 159 AMBA_DEVICE(mmc0,       "fpga:05",      MMCI0,          &realview_mmc0_plat_data);
 160 AMBA_DEVICE(kmi0,       "fpga:06",      KMI0,           NULL);
 161 AMBA_DEVICE(kmi1,       "fpga:07",      KMI1,           NULL);
 162 AMBA_DEVICE(uart3,      "fpga:09",      PB11MP_UART3,   NULL);
 163
 164 /* DevChip Primecells */
 165 AMBA_DEVICE(smc,        "dev:00",       PB11MP_SMC,     NULL);
 166 AMBA_DEVICE(sctl,       "dev:e0",       SCTL,           NULL);
 167 AMBA_DEVICE(wdog,       "dev:e1",       PB11MP_WATCHDOG, NULL);
 168 AMBA_DEVICE(gpio0,      "dev:e4",       PB11MP_GPIO0,   NULL);
 169 AMBA_DEVICE(gpio1,      "dev:e5",       GPIO1,          NULL);
 170 AMBA_DEVICE(gpio2,      "dev:e6",       GPIO2,          NULL);
 171 AMBA_DEVICE(rtc,        "dev:e8",       PB11MP_RTC,     NULL);
 172 AMBA_DEVICE(sci0,       "dev:f0",       SCI,            NULL);
 173 AMBA_DEVICE(uart0,      "dev:f1",       PB11MP_UART0,   NULL);
 174 AMBA_DEVICE(uart1,      "dev:f2",       PB11MP_UART1,   NULL);
 175 AMBA_DEVICE(uart2,      "dev:f3",       PB11MP_UART2,   NULL);
 176 AMBA_DEVICE(ssp0,       "dev:f4",       PB11MP_SSP,     NULL);
 177
 178 /* Primecells on the NEC ISSP chip */
 179 AMBA_DEVICE(clcd,       "issp:20",      PB11MP_CLCD,    &clcd_plat_data);
 180 AMBA_DEVICE(dmac,       "issp:30",      DMAC,           NULL);
 181
 182 static struct amba_device *amba_devs[] __initdata = {
 183         &dmac_device,
 184         &uart0_device,
 185         &uart1_device,
 186         &uart2_device,
 187         &uart3_device,
 188         &smc_device,
 189         &clcd_device,
 190         &sctl_device,
 191         &wdog_device,
 192         &gpio0_device,
 193         &gpio1_device,
 194         &gpio2_device,
 195         &rtc_device,
 196         &sci0_device,
 197         &ssp0_device,
 198         &aaci_device,
 199         &mmc0_device,
 200         &kmi0_device,
 201         &kmi1_device,
 202 };
 203
 204 /*
 205  * RealView PB11MPCore platform devices
 206  */
 207 static struct resource realview_pb11mp_flash_resource[] = {
 208         [0] = {
 209                 .start          = REALVIEW_PB11MP_FLASH0_BASE,
 210                 .end            = REALVIEW_PB11MP_FLASH0_BASE + REALVIEW_PB11MP_FLASH0_SIZE - 1,
 211                 .flags          = IORESOURCE_MEM,
 212         },
 213         [1] = {
 214                 .start          = REALVIEW_PB11MP_FLASH1_BASE,
 215                 .end            = REALVIEW_PB11MP_FLASH1_BASE + REALVIEW_PB11MP_FLASH1_SIZE - 1,
 216                 .flags          = IORESOURCE_MEM,
 217         },
 218 };
 219
 220 static struct resource realview_pb11mp_smsc911x_resources[] = {
 221         [0] = {
 222                 .start          = REALVIEW_PB11MP_ETH_BASE,
 223                 .end            = REALVIEW_PB11MP_ETH_BASE + SZ_64K - 1,
 224                 .flags          = IORESOURCE_MEM,
 225         },
 226         [1] = {
 227                 .start          = IRQ_TC11MP_ETH,
 228                 .end            = IRQ_TC11MP_ETH,
 229                 .flags          = IORESOURCE_IRQ,
 230         },
 231 };
 232
 233 static struct resource realview_pb11mp_isp1761_resources[] = {
 234         [0] = {
 235                 .start          = REALVIEW_PB11MP_USB_BASE,
 236                 .end            = REALVIEW_PB11MP_USB_BASE + SZ_128K - 1,
 237                 .flags          = IORESOURCE_MEM,
 238         },
 239         [1] = {
 240                 .start          = IRQ_TC11MP_USB,
 241                 .end            = IRQ_TC11MP_USB,
 242                 .flags          = IORESOURCE_IRQ,
 243         },
 244 };
 245
 246 static void __init gic_init_irq(void)
 247 {
 248         unsigned int pldctrl;
 249
 250         /* new irq mode with no DCC */
 251         writel(0x0000a05f, __io_address(REALVIEW_SYS_LOCK));
 252         pldctrl = readl(__io_address(REALVIEW_SYS_BASE) + REALVIEW_PB11MP_SYS_PLD_CTRL1);
 253         pldctrl |= 2 << 22;
 254         writel(pldctrl, __io_address(REALVIEW_SYS_BASE) + REALVIEW_PB11MP_SYS_PLD_CTRL1);
 255         writel(0x00000000, __io_address(REALVIEW_SYS_LOCK));
 256
 257         /* ARM11MPCore test chip GIC, primary */
 258         gic_cpu_base_addr = __io_address(REALVIEW_TC11MP_GIC_CPU_BASE);
 259         gic_dist_init(0, __io_address(REALVIEW_TC11MP_GIC_DIST_BASE), 29);
 260         gic_cpu_init(0, gic_cpu_base_addr);
 261
 262         /* board GIC, secondary */
 263         gic_dist_init(1, __io_address(REALVIEW_PB11MP_GIC_DIST_BASE), IRQ_PB11MP_GIC_START);
 264         gic_cpu_init(1, __io_address(REALVIEW_PB11MP_GIC_CPU_BASE));
 265         gic_cascade_irq(1, IRQ_TC11MP_PB_IRQ1);
 266 }
 267
 268 static void __init realview_pb11mp_timer_init(void)
 269 {
 270         timer0_va_base = __io_address(REALVIEW_PB11MP_TIMER0_1_BASE);
 271         timer1_va_base = __io_address(REALVIEW_PB11MP_TIMER0_1_BASE) + 0x20;
 272         timer2_va_base = __io_address(REALVIEW_PB11MP_TIMER2_3_BASE);
 273         timer3_va_base = __io_address(REALVIEW_PB11MP_TIMER2_3_BASE) + 0x20;
 274
 275 #ifdef CONFIG_LOCAL_TIMERS
 276         twd_base = __io_address(REALVIEW_TC11MP_TWD_BASE);
 277 #endif
 278         realview_timer_init(IRQ_TC11MP_TIMER0_1);
 279 }
 280
 281 static struct sys_timer realview_pb11mp_timer = {
 282         .init           = realview_pb11mp_timer_init,
 283 };
 284
 285 static void __init realview_pb11mp_init(void)
 286 {
 287         int i;
 288
 289 #ifdef CONFIG_CACHE_L2X0
 290         /* 1MB (128KB/way), 8-way associativity, evmon/parity/share enabled
 291          * Bits:  .... ...0 0111 1001 0000 .... .... .... */
 292         l2x0_init(__io_address(REALVIEW_TC11MP_L220_BASE), 0x00790000, 0xfe000fff);
 293 #endif
 294
 295         realview_flash_register(realview_pb11mp_flash_resource,
 296                                 ARRAY_SIZE(realview_pb11mp_flash_resource));
 297         realview_eth_register(NULL, realview_pb11mp_smsc911x_resources);
 298         platform_device_register(&realview_i2c_device);
 299         platform_device_register(&realview_cf_device);
 300         realview_usb_register(realview_pb11mp_isp1761_resources);
 301
 302         for (i = 0; i < ARRAY_SIZE(amba_devs); i++) {
 303                 struct amba_device *d = amba_devs[i];
 304                 amba_device_register(d, &iomem_resource);
 305         }
 306
 307 #ifdef CONFIG_LEDS
 308         leds_event = realview_leds_event;
 309 #endif
 310 }
 311
 312 MACHINE_START(REALVIEW_PB11MP, "ARM-RealView PB11MPCore")
 313         /* Maintainer: ARM Ltd/Deep Blue Solutions Ltd */
 314         .phys_io        = REALVIEW_PB11MP_UART0_BASE,
 315         .io_pg_offst    = (IO_ADDRESS(REALVIEW_PB11MP_UART0_BASE) >> 18) & 0xfffc,
 316         .boot_params    = PHYS_OFFSET + 0x00000100,
 317         .map_io         = realview_pb11mp_map_io,
 318         .init_irq       = gic_init_irq,
 319         .timer          = &realview_pb11mp_timer,
 320         .init_machine   = realview_pb11mp_init,
 321 MACHINE_END