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   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/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-pb1176.h>
  43 #include <mach/irqs.h>
  44
  45 #include "core.h"
  46 #include "clock.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 /*
 111  * RealView PB1176 AMBA devices
 112  */
 113 #define GPIO2_IRQ       { IRQ_PB1176_GPIO2, NO_IRQ }
 114 #define GPIO2_DMA       { 0, 0 }
 115 #define GPIO3_IRQ       { IRQ_PB1176_GPIO3, NO_IRQ }
 116 #define GPIO3_DMA       { 0, 0 }
 117 #define AACI_IRQ        { IRQ_PB1176_AACI, NO_IRQ }
 118 #define AACI_DMA        { 0x80, 0x81 }
 119 #define MMCI0_IRQ       { IRQ_PB1176_MMCI0A, IRQ_PB1176_MMCI0B }
 120 #define MMCI0_DMA       { 0x84, 0 }
 121 #define KMI0_IRQ        { IRQ_PB1176_KMI0, NO_IRQ }
 122 #define KMI0_DMA        { 0, 0 }
 123 #define KMI1_IRQ        { IRQ_PB1176_KMI1, NO_IRQ }
 124 #define KMI1_DMA        { 0, 0 }
 125 #define PB1176_SMC_IRQ  { NO_IRQ, NO_IRQ }
 126 #define PB1176_SMC_DMA  { 0, 0 }
 127 #define MPMC_IRQ        { NO_IRQ, NO_IRQ }
 128 #define MPMC_DMA        { 0, 0 }
 129 #define PB1176_CLCD_IRQ { IRQ_DC1176_CLCD, NO_IRQ }
 130 #define PB1176_CLCD_DMA { 0, 0 }
 131 #define DMAC_IRQ        { IRQ_PB1176_DMAC, NO_IRQ }
 132 #define DMAC_DMA        { 0, 0 }
 133 #define SCTL_IRQ        { NO_IRQ, NO_IRQ }
 134 #define SCTL_DMA        { 0, 0 }
 135 #define PB1176_WATCHDOG_IRQ     { IRQ_DC1176_WATCHDOG, NO_IRQ }
 136 #define PB1176_WATCHDOG_DMA     { 0, 0 }
 137 #define PB1176_GPIO0_IRQ        { IRQ_PB1176_GPIO0, NO_IRQ }
 138 #define PB1176_GPIO0_DMA        { 0, 0 }
 139 #define GPIO1_IRQ       { IRQ_PB1176_GPIO1, NO_IRQ }
 140 #define GPIO1_DMA       { 0, 0 }
 141 #define PB1176_RTC_IRQ  { IRQ_DC1176_RTC, NO_IRQ }
 142 #define PB1176_RTC_DMA  { 0, 0 }
 143 #define SCI_IRQ         { IRQ_PB1176_SCI, NO_IRQ }
 144 #define SCI_DMA         { 7, 6 }
 145 #define PB1176_UART0_IRQ        { IRQ_DC1176_UART0, NO_IRQ }
 146 #define PB1176_UART0_DMA        { 15, 14 }
 147 #define PB1176_UART1_IRQ        { IRQ_DC1176_UART1, NO_IRQ }
 148 #define PB1176_UART1_DMA        { 13, 12 }
 149 #define PB1176_UART2_IRQ        { IRQ_DC1176_UART2, NO_IRQ }
 150 #define PB1176_UART2_DMA        { 11, 10 }
 151 #define PB1176_UART3_IRQ        { IRQ_DC1176_UART3, NO_IRQ }
 152 #define PB1176_UART3_DMA        { 0x86, 0x87 }
 153 #define PB1176_SSP_IRQ          { IRQ_PB1176_SSP, NO_IRQ }
 154 #define PB1176_SSP_DMA          { 9, 8 }
 155
 156 /* FPGA Primecells */
 157 AMBA_DEVICE(aaci,       "fpga:04",      AACI,           NULL);
 158 AMBA_DEVICE(mmc0,       "fpga:05",      MMCI0,          &realview_mmc0_plat_data);
 159 AMBA_DEVICE(kmi0,       "fpga:06",      KMI0,           NULL);
 160 AMBA_DEVICE(kmi1,       "fpga:07",      KMI1,           NULL);
 161 AMBA_DEVICE(uart3,      "fpga:09",      PB1176_UART3,   NULL);
 162
 163 /* DevChip Primecells */
 164 AMBA_DEVICE(smc,        "dev:00",       PB1176_SMC,     NULL);
 165 AMBA_DEVICE(sctl,       "dev:e0",       SCTL,           NULL);
 166 AMBA_DEVICE(wdog,       "dev:e1",       PB1176_WATCHDOG,        NULL);
 167 AMBA_DEVICE(gpio0,      "dev:e4",       PB1176_GPIO0,   NULL);
 168 AMBA_DEVICE(gpio1,      "dev:e5",       GPIO1,          NULL);
 169 AMBA_DEVICE(gpio2,      "dev:e6",       GPIO2,          NULL);
 170 AMBA_DEVICE(rtc,        "dev:e8",       PB1176_RTC,     NULL);
 171 AMBA_DEVICE(sci0,       "dev:f0",       SCI,            NULL);
 172 AMBA_DEVICE(uart0,      "dev:f1",       PB1176_UART0,   NULL);
 173 AMBA_DEVICE(uart1,      "dev:f2",       PB1176_UART1,   NULL);
 174 AMBA_DEVICE(uart2,      "dev:f3",       PB1176_UART2,   NULL);
 175 AMBA_DEVICE(ssp0,       "dev:f4",       PB1176_SSP,     NULL);
 176
 177 /* Primecells on the NEC ISSP chip */
 178 AMBA_DEVICE(clcd,       "issp:20",      PB1176_CLCD,    &clcd_plat_data);
 179 //AMBA_DEVICE(dmac,     "issp:30",      PB1176_DMAC,    NULL);
 180
 181 static struct amba_device *amba_devs[] __initdata = {
 182 //      &dmac_device,
 183         &uart0_device,
 184         &uart1_device,
 185         &uart2_device,
 186         &uart3_device,
 187         &smc_device,
 188         &clcd_device,
 189         &sctl_device,
 190         &wdog_device,
 191         &gpio0_device,
 192         &gpio1_device,
 193         &gpio2_device,
 194         &rtc_device,
 195         &sci0_device,
 196         &ssp0_device,
 197         &aaci_device,
 198         &mmc0_device,
 199         &kmi0_device,
 200         &kmi1_device,
 201 };
 202
 203 /*
 204  * RealView PB1176 platform devices
 205  */
 206 static struct resource realview_pb1176_flash_resource = {
 207         .start                  = REALVIEW_PB1176_FLASH_BASE,
 208         .end                    = REALVIEW_PB1176_FLASH_BASE + REALVIEW_PB1176_FLASH_SIZE - 1,
 209         .flags                  = IORESOURCE_MEM,
 210 };
 211
 212 static struct resource realview_pb1176_smsc911x_resources[] = {
 213         [0] = {
 214                 .start          = REALVIEW_PB1176_ETH_BASE,
 215                 .end            = REALVIEW_PB1176_ETH_BASE + SZ_64K - 1,
 216                 .flags          = IORESOURCE_MEM,
 217         },
 218         [1] = {
 219                 .start          = IRQ_PB1176_ETH,
 220                 .end            = IRQ_PB1176_ETH,
 221                 .flags          = IORESOURCE_IRQ,
 222         },
 223 };
 224
 225 static void __init gic_init_irq(void)
 226 {
 227         /* ARM1176 DevChip GIC, primary */
 228         gic_cpu_base_addr = __io_address(REALVIEW_DC1176_GIC_CPU_BASE);
 229         gic_dist_init(0, __io_address(REALVIEW_DC1176_GIC_DIST_BASE), IRQ_DC1176_GIC_START);
 230         gic_cpu_init(0, gic_cpu_base_addr);
 231
 232         /* board GIC, secondary */
 233         gic_dist_init(1, __io_address(REALVIEW_PB1176_GIC_DIST_BASE), IRQ_PB1176_GIC_START);
 234         gic_cpu_init(1, __io_address(REALVIEW_PB1176_GIC_CPU_BASE));
 235         gic_cascade_irq(1, IRQ_DC1176_PB_IRQ1);
 236 }
 237
 238 static void __init realview_pb1176_timer_init(void)
 239 {
 240         timer0_va_base = __io_address(REALVIEW_PB1176_TIMER0_1_BASE);
 241         timer1_va_base = __io_address(REALVIEW_PB1176_TIMER0_1_BASE) + 0x20;
 242         timer2_va_base = __io_address(REALVIEW_PB1176_TIMER2_3_BASE);
 243         timer3_va_base = __io_address(REALVIEW_PB1176_TIMER2_3_BASE) + 0x20;
 244
 245         realview_timer_init(IRQ_DC1176_TIMER0);
 246 }
 247
 248 static struct sys_timer realview_pb1176_timer = {
 249         .init           = realview_pb1176_timer_init,
 250 };
 251
 252 static void __init realview_pb1176_init(void)
 253 {
 254         int i;
 255
 256 #ifdef CONFIG_CACHE_L2X0
 257         /* 128Kb (16Kb/way) 8-way associativity. evmon/parity/share enabled. */
 258         l2x0_init(__io_address(REALVIEW_PB1176_L220_BASE), 0x00730000, 0xfe000fff);
 259 #endif
 260
 261         realview_flash_register(&realview_pb1176_flash_resource, 1);
 262         realview_eth_register(NULL, realview_pb1176_smsc911x_resources);
 263
 264         for (i = 0; i < ARRAY_SIZE(amba_devs); i++) {
 265                 struct amba_device *d = amba_devs[i];
 266                 amba_device_register(d, &iomem_resource);
 267         }
 268
 269 #ifdef CONFIG_LEDS
 270         leds_event = realview_leds_event;
 271 #endif
 272 }
 273
 274 MACHINE_START(REALVIEW_PB1176, "ARM-RealView PB1176")
 275         /* Maintainer: ARM Ltd/Deep Blue Solutions Ltd */
 276         .phys_io        = REALVIEW_PB1176_UART0_BASE,
 277         .io_pg_offst    = (IO_ADDRESS(REALVIEW_PB1176_UART0_BASE) >> 18) & 0xfffc,
 278         .boot_params    = PHYS_OFFSET + 0x00000100,
 279         .map_io         = realview_pb1176_map_io,
 280         .init_irq       = gic_init_irq,
 281         .timer          = &realview_pb1176_timer,
 282         .init_machine   = realview_pb1176_init,
 283 MACHINE_END