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   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/config.h>
  23 #include <linux/init.h>
  24 #include <linux/platform_device.h>
  25 #include <linux/sysdev.h>
  26 #include <linux/amba/bus.h>
  27
  28 #include <asm/hardware.h>
  29 #include <asm/io.h>
  30 #include <asm/irq.h>
  31 #include <asm/leds.h>
  32 #include <asm/mach-types.h>
  33 #include <asm/hardware/gic.h>
  34 #include <asm/hardware/icst307.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                 .virtual        = IO_ADDRESS(REALVIEW_SCTL_BASE),
  63                 .pfn            = __phys_to_pfn(REALVIEW_SCTL_BASE),
  64                 .length         = SZ_4K,
  65                 .type           = MT_DEVICE,
  66         }, {
  67                 .virtual        = IO_ADDRESS(REALVIEW_TIMER0_1_BASE),
  68                 .pfn            = __phys_to_pfn(REALVIEW_TIMER0_1_BASE),
  69                 .length         = SZ_4K,
  70                 .type           = MT_DEVICE,
  71         }, {
  72                 .virtual        = IO_ADDRESS(REALVIEW_TIMER2_3_BASE),
  73                 .pfn            = __phys_to_pfn(REALVIEW_TIMER2_3_BASE),
  74                 .length         = SZ_4K,
  75                 .type           = MT_DEVICE,
  76         },
  77 #ifdef CONFIG_DEBUG_LL
  78         {
  79                 .virtual        = IO_ADDRESS(REALVIEW_UART0_BASE),
  80                 .pfn            = __phys_to_pfn(REALVIEW_UART0_BASE),
  81                 .length         = SZ_4K,
  82                 .type           = MT_DEVICE,
  83         }
  84 #endif
  85 };
  86
  87 static void __init realview_eb_map_io(void)
  88 {
  89         iotable_init(realview_eb_io_desc, ARRAY_SIZE(realview_eb_io_desc));
  90 }
  91
  92 /* FPGA Primecells */
  93 AMBA_DEVICE(aaci,  "fpga:04", AACI,     NULL);
  94 AMBA_DEVICE(mmc0,  "fpga:05", MMCI0,    &realview_mmc0_plat_data);
  95 AMBA_DEVICE(kmi0,  "fpga:06", KMI0,     NULL);
  96 AMBA_DEVICE(kmi1,  "fpga:07", KMI1,     NULL);
  97 AMBA_DEVICE(uart3, "fpga:09", UART3,    NULL);
  98
  99 /* DevChip Primecells */
 100 AMBA_DEVICE(smc,   "dev:00",  SMC,      NULL);
 101 AMBA_DEVICE(clcd,  "dev:20",  CLCD,     &clcd_plat_data);
 102 AMBA_DEVICE(dmac,  "dev:30",  DMAC,     NULL);
 103 AMBA_DEVICE(sctl,  "dev:e0",  SCTL,     NULL);
 104 AMBA_DEVICE(wdog,  "dev:e1",  WATCHDOG, NULL);
 105 AMBA_DEVICE(gpio0, "dev:e4",  GPIO0,    NULL);
 106 AMBA_DEVICE(gpio1, "dev:e5",  GPIO1,    NULL);
 107 AMBA_DEVICE(gpio2, "dev:e6",  GPIO2,    NULL);
 108 AMBA_DEVICE(rtc,   "dev:e8",  RTC,      NULL);
 109 AMBA_DEVICE(sci0,  "dev:f0",  SCI,      NULL);
 110 AMBA_DEVICE(uart0, "dev:f1",  UART0,    NULL);
 111 AMBA_DEVICE(uart1, "dev:f2",  UART1,    NULL);
 112 AMBA_DEVICE(uart2, "dev:f3",  UART2,    NULL);
 113 AMBA_DEVICE(ssp0,  "dev:f4",  SSP,      NULL);
 114
 115 static struct amba_device *amba_devs[] __initdata = {
 116         &dmac_device,
 117         &uart0_device,
 118         &uart1_device,
 119         &uart2_device,
 120         &uart3_device,
 121         &smc_device,
 122         &clcd_device,
 123         &sctl_device,
 124         &wdog_device,
 125         &gpio0_device,
 126         &gpio1_device,
 127         &gpio2_device,
 128         &rtc_device,
 129         &sci0_device,
 130         &ssp0_device,
 131         &aaci_device,
 132         &mmc0_device,
 133         &kmi0_device,
 134         &kmi1_device,
 135 };
 136
 137 static void __init gic_init_irq(void)
 138 {
 139 #ifdef CONFIG_REALVIEW_MPCORE
 140         unsigned int pldctrl;
 141         writel(0x0000a05f, __io_address(REALVIEW_SYS_LOCK));
 142         pldctrl = readl(__io_address(REALVIEW_SYS_BASE) + 0xd8);
 143         pldctrl |= 0x00800000;  /* New irq mode */
 144         writel(pldctrl, __io_address(REALVIEW_SYS_BASE) + 0xd8);
 145         writel(0x00000000, __io_address(REALVIEW_SYS_LOCK));
 146 #endif
 147         gic_dist_init(__io_address(REALVIEW_GIC_DIST_BASE));
 148         gic_cpu_init(__io_address(REALVIEW_GIC_CPU_BASE));
 149 }
 150
 151 static void __init realview_eb_init(void)
 152 {
 153         int i;
 154
 155         clk_register(&realview_clcd_clk);
 156
 157         platform_device_register(&realview_flash_device);
 158         platform_device_register(&realview_smc91x_device);
 159
 160         for (i = 0; i < ARRAY_SIZE(amba_devs); i++) {
 161                 struct amba_device *d = amba_devs[i];
 162                 amba_device_register(d, &iomem_resource);
 163         }
 164
 165 #ifdef CONFIG_LEDS
 166         leds_event = realview_leds_event;
 167 #endif
 168 }
 169
 170 MACHINE_START(REALVIEW_EB, "ARM-RealView EB")
 171         /* Maintainer: ARM Ltd/Deep Blue Solutions Ltd */
 172         .phys_io        = REALVIEW_UART0_BASE,
 173         .io_pg_offst    = (IO_ADDRESS(REALVIEW_UART0_BASE) >> 18) & 0xfffc,
 174         .boot_params    = 0x00000100,
 175         .map_io         = realview_eb_map_io,
 176         .init_irq       = gic_init_irq,
 177         .timer          = &realview_timer,
 178         .init_machine   = realview_eb_init,
 179 MACHINE_END