arch/arm/mach-realview/realview_eb.c

   1 /*
   2  *  linux/arch/arm/mach-realview/realview_eb.c
   3  *
   4  *  Copyright (C) 2004 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
  27 #include <asm/hardware.h>
  28 #include <asm/io.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/map.h>
  38 #include <asm/mach/mmc.h>
  39
  40 #include <asm/arch/irqs.h>
  41
  42 #include "core.h"
  43 #include "clock.h"
  44
  45 static struct map_desc realview_eb_io_desc[] __initdata = {
  46         {
  47                 .virtual        = IO_ADDRESS(REALVIEW_SYS_BASE),
  48                 .pfn            = __phys_to_pfn(REALVIEW_SYS_BASE),
  49                 .length         = SZ_4K,
  50                 .type           = MT_DEVICE,
  51         }, {
  52                 .virtual        = IO_ADDRESS(REALVIEW_GIC_CPU_BASE),
  53                 .pfn            = __phys_to_pfn(REALVIEW_GIC_CPU_BASE),
  54                 .length         = SZ_4K,
  55                 .type           = MT_DEVICE,
  56         }, {
  57                 .virtual        = IO_ADDRESS(REALVIEW_GIC_DIST_BASE),
  58                 .pfn            = __phys_to_pfn(REALVIEW_GIC_DIST_BASE),
  59                 .length         = SZ_4K,
  60                 .type           = MT_DEVICE,
  61         },
  62 #ifdef CONFIG_REALVIEW_MPCORE
  63         {
  64                 .virtual        = IO_ADDRESS(REALVIEW_GIC1_CPU_BASE),
  65                 .pfn            = __phys_to_pfn(REALVIEW_GIC1_CPU_BASE),
  66                 .length         = SZ_4K,
  67                 .type           = MT_DEVICE,
  68         }, {
  69                 .virtual        = IO_ADDRESS(REALVIEW_GIC1_DIST_BASE),
  70                 .pfn            = __phys_to_pfn(REALVIEW_GIC1_DIST_BASE),
  71                 .length         = SZ_4K,
  72                 .type           = MT_DEVICE,
  73         }, {
  74                 .virtual        = IO_ADDRESS(REALVIEW_MPCORE_L220_BASE),
  75                 .pfn            = __phys_to_pfn(REALVIEW_MPCORE_L220_BASE),
  76                 .length         = SZ_8K,
  77                 .type           = MT_DEVICE,
  78         },
  79 #endif
  80         {
  81                 .virtual        = IO_ADDRESS(REALVIEW_SCTL_BASE),
  82                 .pfn            = __phys_to_pfn(REALVIEW_SCTL_BASE),
  83                 .length         = SZ_4K,
  84                 .type           = MT_DEVICE,
  85         }, {
  86                 .virtual        = IO_ADDRESS(REALVIEW_TIMER0_1_BASE),
  87                 .pfn            = __phys_to_pfn(REALVIEW_TIMER0_1_BASE),
  88                 .length         = SZ_4K,
  89                 .type           = MT_DEVICE,
  90         }, {
  91                 .virtual        = IO_ADDRESS(REALVIEW_TIMER2_3_BASE),
  92                 .pfn            = __phys_to_pfn(REALVIEW_TIMER2_3_BASE),
  93                 .length         = SZ_4K,
  94                 .type           = MT_DEVICE,
  95         },
  96 #ifdef CONFIG_DEBUG_LL
  97         {
  98                 .virtual        = IO_ADDRESS(REALVIEW_UART0_BASE),
  99                 .pfn            = __phys_to_pfn(REALVIEW_UART0_BASE),
 100                 .length         = SZ_4K,
 101                 .type           = MT_DEVICE,
 102         }
 103 #endif
 104 };
 105
 106 static void __init realview_eb_map_io(void)
 107 {
 108         iotable_init(realview_eb_io_desc, ARRAY_SIZE(realview_eb_io_desc));
 109 }
 110
 111 /* FPGA Primecells */
 112 AMBA_DEVICE(aaci,  "fpga:04", AACI,     NULL);
 113 AMBA_DEVICE(mmc0,  "fpga:05", MMCI0,    &realview_mmc0_plat_data);
 114 AMBA_DEVICE(kmi0,  "fpga:06", KMI0,     NULL);
 115 AMBA_DEVICE(kmi1,  "fpga:07", KMI1,     NULL);
 116 AMBA_DEVICE(uart3, "fpga:09", UART3,    NULL);
 117
 118 /* DevChip Primecells */
 119 AMBA_DEVICE(smc,   "dev:00",  SMC,      NULL);
 120 AMBA_DEVICE(clcd,  "dev:20",  CLCD,     &clcd_plat_data);
 121 AMBA_DEVICE(dmac,  "dev:30",  DMAC,     NULL);
 122 AMBA_DEVICE(sctl,  "dev:e0",  SCTL,     NULL);
 123 AMBA_DEVICE(wdog,  "dev:e1",  WATCHDOG, NULL);
 124 AMBA_DEVICE(gpio0, "dev:e4",  GPIO0,    NULL);
 125 AMBA_DEVICE(gpio1, "dev:e5",  GPIO1,    NULL);
 126 AMBA_DEVICE(gpio2, "dev:e6",  GPIO2,    NULL);
 127 AMBA_DEVICE(rtc,   "dev:e8",  RTC,      NULL);
 128 AMBA_DEVICE(sci0,  "dev:f0",  SCI,      NULL);
 129 AMBA_DEVICE(uart0, "dev:f1",  UART0,    NULL);
 130 AMBA_DEVICE(uart1, "dev:f2",  UART1,    NULL);
 131 AMBA_DEVICE(uart2, "dev:f3",  UART2,    NULL);
 132 AMBA_DEVICE(ssp0,  "dev:f4",  SSP,      NULL);
 133
 134 static struct amba_device *amba_devs[] __initdata = {
 135         &dmac_device,
 136         &uart0_device,
 137         &uart1_device,
 138         &uart2_device,
 139         &uart3_device,
 140         &smc_device,
 141         &clcd_device,
 142         &sctl_device,
 143         &wdog_device,
 144         &gpio0_device,
 145         &gpio1_device,
 146         &gpio2_device,
 147         &rtc_device,
 148         &sci0_device,
 149         &ssp0_device,
 150         &aaci_device,
 151         &mmc0_device,
 152         &kmi0_device,
 153         &kmi1_device,
 154 };
 155
 156 static void __init gic_init_irq(void)
 157 {
 158 #ifdef CONFIG_REALVIEW_MPCORE
 159         unsigned int pldctrl;
 160         writel(0x0000a05f, __io_address(REALVIEW_SYS_LOCK));
 161         pldctrl = readl(__io_address(REALVIEW_SYS_BASE) + REALVIEW_MPCORE_SYS_PLD_CTRL1);
 162         pldctrl |= 0x00800000;  /* New irq mode */
 163         writel(pldctrl, __io_address(REALVIEW_SYS_BASE) + REALVIEW_MPCORE_SYS_PLD_CTRL1);
 164         writel(0x00000000, __io_address(REALVIEW_SYS_LOCK));
 165 #endif
 166         gic_dist_init(0, __io_address(REALVIEW_GIC_DIST_BASE), 29);
 167         gic_cpu_init(0, __io_address(REALVIEW_GIC_CPU_BASE));
 168 #ifdef CONFIG_REALVIEW_MPCORE
 169         gic_dist_init(1, __io_address(REALVIEW_GIC1_DIST_BASE), 64);
 170         gic_cpu_init(1, __io_address(REALVIEW_GIC1_CPU_BASE));
 171         gic_cascade_irq(1, IRQ_EB_IRQ1);
 172 #endif
 173 }
 174
 175 static void __init realview_eb_init(void)
 176 {
 177         int i;
 178
 179 #ifdef CONFIG_REALVIEW_MPCORE
 180         /* 1MB (128KB/way), 8-way associativity, evmon/parity/share enabled
 181          * Bits:  .... ...0 0111 1001 0000 .... .... .... */
 182         l2x0_init(__io_address(REALVIEW_MPCORE_L220_BASE), 0x00790000, 0xfe000fff);
 183 #endif
 184         clk_register(&realview_clcd_clk);
 185
 186         platform_device_register(&realview_flash_device);
 187         platform_device_register(&realview_smc91x_device);
 188         platform_device_register(&realview_i2c_device);
 189
 190         for (i = 0; i < ARRAY_SIZE(amba_devs); i++) {
 191                 struct amba_device *d = amba_devs[i];
 192                 amba_device_register(d, &iomem_resource);
 193         }
 194
 195 #ifdef CONFIG_LEDS
 196         leds_event = realview_leds_event;
 197 #endif
 198 }
 199
 200 MACHINE_START(REALVIEW_EB, "ARM-RealView EB")
 201         /* Maintainer: ARM Ltd/Deep Blue Solutions Ltd */
 202         .phys_io        = REALVIEW_UART0_BASE,
 203         .io_pg_offst    = (IO_ADDRESS(REALVIEW_UART0_BASE) >> 18) & 0xfffc,
 204         .boot_params    = 0x00000100,
 205         .map_io         = realview_eb_map_io,
 206         .init_irq       = gic_init_irq,
 207         .timer          = &realview_timer,
 208         .init_machine   = realview_eb_init,
 209 MACHINE_END