7dc32503fdf28ae68291c829866f2bbb8503624f
[linux-2.6.git] / 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/config.h>
23 #include <linux/init.h>
24 #include <linux/platform_device.h>
25 #include <linux/sysdev.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/amba.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         writel(0x0000a05f, __io_address(REALVIEW_SYS_LOCK));
141         writel(0x008003c0, __io_address(REALVIEW_SYS_BASE) + 0xd8);
142         writel(0x00000000, __io_address(REALVIEW_SYS_LOCK));
143 #endif
144         gic_dist_init(__io_address(REALVIEW_GIC_DIST_BASE));
145         gic_cpu_init(__io_address(REALVIEW_GIC_CPU_BASE));
146 }
147
148 static void __init realview_eb_init(void)
149 {
150         int i;
151
152         clk_register(&realview_clcd_clk);
153
154         platform_device_register(&realview_flash_device);
155         platform_device_register(&realview_smc91x_device);
156
157         for (i = 0; i < ARRAY_SIZE(amba_devs); i++) {
158                 struct amba_device *d = amba_devs[i];
159                 amba_device_register(d, &iomem_resource);
160         }
161
162 #ifdef CONFIG_LEDS
163         leds_event = realview_leds_event;
164 #endif
165 }
166
167 MACHINE_START(REALVIEW_EB, "ARM-RealView EB")
168         /* Maintainer: ARM Ltd/Deep Blue Solutions Ltd */
169         .phys_ram       = 0x00000000,
170         .phys_io        = REALVIEW_UART0_BASE,
171         .io_pg_offst    = (IO_ADDRESS(REALVIEW_UART0_BASE) >> 18) & 0xfffc,
172         .boot_params    = 0x00000100,
173         .map_io         = realview_eb_map_io,
174         .init_irq       = gic_init_irq,
175         .timer          = &realview_timer,
176         .init_machine   = realview_eb_init,
177 MACHINE_END