[ARM] versatile: add PL061 gpiolib support
[linux-2.6.git] / arch / arm / mach-realview / realview_pba8.c
1 /*
2  *  linux/arch/arm/mach-realview/realview_pba8.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 <asm/irq.h>
29 #include <asm/leds.h>
30 #include <asm/mach-types.h>
31 #include <asm/hardware/gic.h>
32 #include <asm/hardware/icst307.h>
33
34 #include <asm/mach/arch.h>
35 #include <asm/mach/map.h>
36 #include <asm/mach/mmc.h>
37 #include <asm/mach/time.h>
38
39 #include <mach/hardware.h>
40 #include <mach/board-pba8.h>
41 #include <mach/irqs.h>
42
43 #include "core.h"
44 #include "clock.h"
45
46 static struct map_desc realview_pba8_io_desc[] __initdata = {
47         {
48                 .virtual        = IO_ADDRESS(REALVIEW_SYS_BASE),
49                 .pfn            = __phys_to_pfn(REALVIEW_SYS_BASE),
50                 .length         = SZ_4K,
51                 .type           = MT_DEVICE,
52         }, {
53                 .virtual        = IO_ADDRESS(REALVIEW_PBA8_GIC_CPU_BASE),
54                 .pfn            = __phys_to_pfn(REALVIEW_PBA8_GIC_CPU_BASE),
55                 .length         = SZ_4K,
56                 .type           = MT_DEVICE,
57         }, {
58                 .virtual        = IO_ADDRESS(REALVIEW_PBA8_GIC_DIST_BASE),
59                 .pfn            = __phys_to_pfn(REALVIEW_PBA8_GIC_DIST_BASE),
60                 .length         = SZ_4K,
61                 .type           = MT_DEVICE,
62         }, {
63                 .virtual        = IO_ADDRESS(REALVIEW_SCTL_BASE),
64                 .pfn            = __phys_to_pfn(REALVIEW_SCTL_BASE),
65                 .length         = SZ_4K,
66                 .type           = MT_DEVICE,
67         }, {
68                 .virtual        = IO_ADDRESS(REALVIEW_PBA8_TIMER0_1_BASE),
69                 .pfn            = __phys_to_pfn(REALVIEW_PBA8_TIMER0_1_BASE),
70                 .length         = SZ_4K,
71                 .type           = MT_DEVICE,
72         }, {
73                 .virtual        = IO_ADDRESS(REALVIEW_PBA8_TIMER2_3_BASE),
74                 .pfn            = __phys_to_pfn(REALVIEW_PBA8_TIMER2_3_BASE),
75                 .length         = SZ_4K,
76                 .type           = MT_DEVICE,
77         },
78 #ifdef CONFIG_PCI
79         {
80                 .virtual        = PCIX_UNIT_BASE,
81                 .pfn            = __phys_to_pfn(REALVIEW_PBA8_PCI_BASE),
82                 .length         = REALVIEW_PBA8_PCI_BASE_SIZE,
83                 .type           = MT_DEVICE
84         },
85 #endif
86 #ifdef CONFIG_DEBUG_LL
87         {
88                 .virtual        = IO_ADDRESS(REALVIEW_PBA8_UART0_BASE),
89                 .pfn            = __phys_to_pfn(REALVIEW_PBA8_UART0_BASE),
90                 .length         = SZ_4K,
91                 .type           = MT_DEVICE,
92         },
93 #endif
94 };
95
96 static void __init realview_pba8_map_io(void)
97 {
98         iotable_init(realview_pba8_io_desc, ARRAY_SIZE(realview_pba8_io_desc));
99 }
100
101 /*
102  * RealView PBA8Core AMBA devices
103  */
104
105 #define GPIO2_IRQ               { IRQ_PBA8_GPIO2, NO_IRQ }
106 #define GPIO2_DMA               { 0, 0 }
107 #define GPIO3_IRQ               { IRQ_PBA8_GPIO3, NO_IRQ }
108 #define GPIO3_DMA               { 0, 0 }
109 #define AACI_IRQ                { IRQ_PBA8_AACI, NO_IRQ }
110 #define AACI_DMA                { 0x80, 0x81 }
111 #define MMCI0_IRQ               { IRQ_PBA8_MMCI0A, IRQ_PBA8_MMCI0B }
112 #define MMCI0_DMA               { 0x84, 0 }
113 #define KMI0_IRQ                { IRQ_PBA8_KMI0, NO_IRQ }
114 #define KMI0_DMA                { 0, 0 }
115 #define KMI1_IRQ                { IRQ_PBA8_KMI1, NO_IRQ }
116 #define KMI1_DMA                { 0, 0 }
117 #define PBA8_SMC_IRQ            { NO_IRQ, NO_IRQ }
118 #define PBA8_SMC_DMA            { 0, 0 }
119 #define MPMC_IRQ                { NO_IRQ, NO_IRQ }
120 #define MPMC_DMA                { 0, 0 }
121 #define PBA8_CLCD_IRQ           { IRQ_PBA8_CLCD, NO_IRQ }
122 #define PBA8_CLCD_DMA           { 0, 0 }
123 #define DMAC_IRQ                { IRQ_PBA8_DMAC, NO_IRQ }
124 #define DMAC_DMA                { 0, 0 }
125 #define SCTL_IRQ                { NO_IRQ, NO_IRQ }
126 #define SCTL_DMA                { 0, 0 }
127 #define PBA8_WATCHDOG_IRQ       { IRQ_PBA8_WATCHDOG, NO_IRQ }
128 #define PBA8_WATCHDOG_DMA       { 0, 0 }
129 #define PBA8_GPIO0_IRQ          { IRQ_PBA8_GPIO0, NO_IRQ }
130 #define PBA8_GPIO0_DMA          { 0, 0 }
131 #define GPIO1_IRQ               { IRQ_PBA8_GPIO1, NO_IRQ }
132 #define GPIO1_DMA               { 0, 0 }
133 #define PBA8_RTC_IRQ            { IRQ_PBA8_RTC, NO_IRQ }
134 #define PBA8_RTC_DMA            { 0, 0 }
135 #define SCI_IRQ                 { IRQ_PBA8_SCI, NO_IRQ }
136 #define SCI_DMA                 { 7, 6 }
137 #define PBA8_UART0_IRQ          { IRQ_PBA8_UART0, NO_IRQ }
138 #define PBA8_UART0_DMA          { 15, 14 }
139 #define PBA8_UART1_IRQ          { IRQ_PBA8_UART1, NO_IRQ }
140 #define PBA8_UART1_DMA          { 13, 12 }
141 #define PBA8_UART2_IRQ          { IRQ_PBA8_UART2, NO_IRQ }
142 #define PBA8_UART2_DMA          { 11, 10 }
143 #define PBA8_UART3_IRQ          { IRQ_PBA8_UART3, NO_IRQ }
144 #define PBA8_UART3_DMA          { 0x86, 0x87 }
145 #define PBA8_SSP_IRQ            { IRQ_PBA8_SSP, NO_IRQ }
146 #define PBA8_SSP_DMA            { 9, 8 }
147
148 /* FPGA Primecells */
149 AMBA_DEVICE(aaci,       "fpga:04",      AACI,           NULL);
150 AMBA_DEVICE(mmc0,       "fpga:05",      MMCI0,          &realview_mmc0_plat_data);
151 AMBA_DEVICE(kmi0,       "fpga:06",      KMI0,           NULL);
152 AMBA_DEVICE(kmi1,       "fpga:07",      KMI1,           NULL);
153 AMBA_DEVICE(uart3,      "fpga:09",      PBA8_UART3,     NULL);
154
155 /* DevChip Primecells */
156 AMBA_DEVICE(smc,        "dev:00",       PBA8_SMC,       NULL);
157 AMBA_DEVICE(sctl,       "dev:e0",       SCTL,           NULL);
158 AMBA_DEVICE(wdog,       "dev:e1",       PBA8_WATCHDOG, NULL);
159 AMBA_DEVICE(gpio0,      "dev:e4",       PBA8_GPIO0,     NULL);
160 AMBA_DEVICE(gpio1,      "dev:e5",       GPIO1,          NULL);
161 AMBA_DEVICE(gpio2,      "dev:e6",       GPIO2,          NULL);
162 AMBA_DEVICE(rtc,        "dev:e8",       PBA8_RTC,       NULL);
163 AMBA_DEVICE(sci0,       "dev:f0",       SCI,            NULL);
164 AMBA_DEVICE(uart0,      "dev:f1",       PBA8_UART0,     NULL);
165 AMBA_DEVICE(uart1,      "dev:f2",       PBA8_UART1,     NULL);
166 AMBA_DEVICE(uart2,      "dev:f3",       PBA8_UART2,     NULL);
167 AMBA_DEVICE(ssp0,       "dev:f4",       PBA8_SSP,       NULL);
168
169 /* Primecells on the NEC ISSP chip */
170 AMBA_DEVICE(clcd,       "issp:20",      PBA8_CLCD,      &clcd_plat_data);
171 AMBA_DEVICE(dmac,       "issp:30",      DMAC,           NULL);
172
173 static struct amba_device *amba_devs[] __initdata = {
174         &dmac_device,
175         &uart0_device,
176         &uart1_device,
177         &uart2_device,
178         &uart3_device,
179         &smc_device,
180         &clcd_device,
181         &sctl_device,
182         &wdog_device,
183         &gpio0_device,
184         &gpio1_device,
185         &gpio2_device,
186         &rtc_device,
187         &sci0_device,
188         &ssp0_device,
189         &aaci_device,
190         &mmc0_device,
191         &kmi0_device,
192         &kmi1_device,
193 };
194
195 /*
196  * RealView PB-A8 platform devices
197  */
198 static struct resource realview_pba8_flash_resource[] = {
199         [0] = {
200                 .start          = REALVIEW_PBA8_FLASH0_BASE,
201                 .end            = REALVIEW_PBA8_FLASH0_BASE + REALVIEW_PBA8_FLASH0_SIZE - 1,
202                 .flags          = IORESOURCE_MEM,
203         },
204         [1] = {
205                 .start          = REALVIEW_PBA8_FLASH1_BASE,
206                 .end            = REALVIEW_PBA8_FLASH1_BASE + REALVIEW_PBA8_FLASH1_SIZE - 1,
207                 .flags          = IORESOURCE_MEM,
208         },
209 };
210
211 static struct resource realview_pba8_smsc911x_resources[] = {
212         [0] = {
213                 .start          = REALVIEW_PBA8_ETH_BASE,
214                 .end            = REALVIEW_PBA8_ETH_BASE + SZ_64K - 1,
215                 .flags          = IORESOURCE_MEM,
216         },
217         [1] = {
218                 .start          = IRQ_PBA8_ETH,
219                 .end            = IRQ_PBA8_ETH,
220                 .flags          = IORESOURCE_IRQ,
221         },
222 };
223
224 static struct resource realview_pba8_isp1761_resources[] = {
225         [0] = {
226                 .start          = REALVIEW_PBA8_USB_BASE,
227                 .end            = REALVIEW_PBA8_USB_BASE + SZ_128K - 1,
228                 .flags          = IORESOURCE_MEM,
229         },
230         [1] = {
231                 .start          = IRQ_PBA8_USB,
232                 .end            = IRQ_PBA8_USB,
233                 .flags          = IORESOURCE_IRQ,
234         },
235 };
236
237 static void __init gic_init_irq(void)
238 {
239         /* ARM PB-A8 on-board GIC */
240         gic_cpu_base_addr = __io_address(REALVIEW_PBA8_GIC_CPU_BASE);
241         gic_dist_init(0, __io_address(REALVIEW_PBA8_GIC_DIST_BASE), IRQ_PBA8_GIC_START);
242         gic_cpu_init(0, __io_address(REALVIEW_PBA8_GIC_CPU_BASE));
243 }
244
245 static void __init realview_pba8_timer_init(void)
246 {
247         timer0_va_base = __io_address(REALVIEW_PBA8_TIMER0_1_BASE);
248         timer1_va_base = __io_address(REALVIEW_PBA8_TIMER0_1_BASE) + 0x20;
249         timer2_va_base = __io_address(REALVIEW_PBA8_TIMER2_3_BASE);
250         timer3_va_base = __io_address(REALVIEW_PBA8_TIMER2_3_BASE) + 0x20;
251
252         realview_timer_init(IRQ_PBA8_TIMER0_1);
253 }
254
255 static struct sys_timer realview_pba8_timer = {
256         .init           = realview_pba8_timer_init,
257 };
258
259 static void __init realview_pba8_init(void)
260 {
261         int i;
262
263         realview_flash_register(realview_pba8_flash_resource,
264                                 ARRAY_SIZE(realview_pba8_flash_resource));
265         realview_eth_register(NULL, realview_pba8_smsc911x_resources);
266         platform_device_register(&realview_i2c_device);
267         platform_device_register(&realview_cf_device);
268         realview_usb_register(realview_pba8_isp1761_resources);
269
270         for (i = 0; i < ARRAY_SIZE(amba_devs); i++) {
271                 struct amba_device *d = amba_devs[i];
272                 amba_device_register(d, &iomem_resource);
273         }
274
275 #ifdef CONFIG_LEDS
276         leds_event = realview_leds_event;
277 #endif
278 }
279
280 MACHINE_START(REALVIEW_PBA8, "ARM-RealView PB-A8")
281         /* Maintainer: ARM Ltd/Deep Blue Solutions Ltd */
282         .phys_io        = REALVIEW_PBA8_UART0_BASE,
283         .io_pg_offst    = (IO_ADDRESS(REALVIEW_PBA8_UART0_BASE) >> 18) & 0xfffc,
284         .boot_params    = PHYS_OFFSET + 0x00000100,
285         .map_io         = realview_pba8_map_io,
286         .init_irq       = gic_init_irq,
287         .timer          = &realview_pba8_timer,
288         .init_machine   = realview_pba8_init,
289 MACHINE_END