[ARM] realview: 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/amba/pl061.h>
27 #include <linux/io.h>
28
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
35 #include <asm/mach/arch.h>
36 #include <asm/mach/map.h>
37 #include <asm/mach/mmc.h>
38 #include <asm/mach/time.h>
39
40 #include <mach/hardware.h>
41 #include <mach/board-pba8.h>
42 #include <mach/irqs.h>
43
44 #include "core.h"
45 #include "clock.h"
46
47 static struct map_desc realview_pba8_io_desc[] __initdata = {
48         {
49                 .virtual        = IO_ADDRESS(REALVIEW_SYS_BASE),
50                 .pfn            = __phys_to_pfn(REALVIEW_SYS_BASE),
51                 .length         = SZ_4K,
52                 .type           = MT_DEVICE,
53         }, {
54                 .virtual        = IO_ADDRESS(REALVIEW_PBA8_GIC_CPU_BASE),
55                 .pfn            = __phys_to_pfn(REALVIEW_PBA8_GIC_CPU_BASE),
56                 .length         = SZ_4K,
57                 .type           = MT_DEVICE,
58         }, {
59                 .virtual        = IO_ADDRESS(REALVIEW_PBA8_GIC_DIST_BASE),
60                 .pfn            = __phys_to_pfn(REALVIEW_PBA8_GIC_DIST_BASE),
61                 .length         = SZ_4K,
62                 .type           = MT_DEVICE,
63         }, {
64                 .virtual        = IO_ADDRESS(REALVIEW_SCTL_BASE),
65                 .pfn            = __phys_to_pfn(REALVIEW_SCTL_BASE),
66                 .length         = SZ_4K,
67                 .type           = MT_DEVICE,
68         }, {
69                 .virtual        = IO_ADDRESS(REALVIEW_PBA8_TIMER0_1_BASE),
70                 .pfn            = __phys_to_pfn(REALVIEW_PBA8_TIMER0_1_BASE),
71                 .length         = SZ_4K,
72                 .type           = MT_DEVICE,
73         }, {
74                 .virtual        = IO_ADDRESS(REALVIEW_PBA8_TIMER2_3_BASE),
75                 .pfn            = __phys_to_pfn(REALVIEW_PBA8_TIMER2_3_BASE),
76                 .length         = SZ_4K,
77                 .type           = MT_DEVICE,
78         },
79 #ifdef CONFIG_PCI
80         {
81                 .virtual        = PCIX_UNIT_BASE,
82                 .pfn            = __phys_to_pfn(REALVIEW_PBA8_PCI_BASE),
83                 .length         = REALVIEW_PBA8_PCI_BASE_SIZE,
84                 .type           = MT_DEVICE
85         },
86 #endif
87 #ifdef CONFIG_DEBUG_LL
88         {
89                 .virtual        = IO_ADDRESS(REALVIEW_PBA8_UART0_BASE),
90                 .pfn            = __phys_to_pfn(REALVIEW_PBA8_UART0_BASE),
91                 .length         = SZ_4K,
92                 .type           = MT_DEVICE,
93         },
94 #endif
95 };
96
97 static void __init realview_pba8_map_io(void)
98 {
99         iotable_init(realview_pba8_io_desc, ARRAY_SIZE(realview_pba8_io_desc));
100 }
101
102 static struct pl061_platform_data gpio0_plat_data = {
103         .gpio_base      = 0,
104         .irq_base       = -1,
105 };
106
107 static struct pl061_platform_data gpio1_plat_data = {
108         .gpio_base      = 8,
109         .irq_base       = -1,
110 };
111
112 static struct pl061_platform_data gpio2_plat_data = {
113         .gpio_base      = 16,
114         .irq_base       = -1,
115 };
116
117 /*
118  * RealView PBA8Core AMBA devices
119  */
120
121 #define GPIO2_IRQ               { IRQ_PBA8_GPIO2, NO_IRQ }
122 #define GPIO2_DMA               { 0, 0 }
123 #define GPIO3_IRQ               { IRQ_PBA8_GPIO3, NO_IRQ }
124 #define GPIO3_DMA               { 0, 0 }
125 #define AACI_IRQ                { IRQ_PBA8_AACI, NO_IRQ }
126 #define AACI_DMA                { 0x80, 0x81 }
127 #define MMCI0_IRQ               { IRQ_PBA8_MMCI0A, IRQ_PBA8_MMCI0B }
128 #define MMCI0_DMA               { 0x84, 0 }
129 #define KMI0_IRQ                { IRQ_PBA8_KMI0, NO_IRQ }
130 #define KMI0_DMA                { 0, 0 }
131 #define KMI1_IRQ                { IRQ_PBA8_KMI1, NO_IRQ }
132 #define KMI1_DMA                { 0, 0 }
133 #define PBA8_SMC_IRQ            { NO_IRQ, NO_IRQ }
134 #define PBA8_SMC_DMA            { 0, 0 }
135 #define MPMC_IRQ                { NO_IRQ, NO_IRQ }
136 #define MPMC_DMA                { 0, 0 }
137 #define PBA8_CLCD_IRQ           { IRQ_PBA8_CLCD, NO_IRQ }
138 #define PBA8_CLCD_DMA           { 0, 0 }
139 #define DMAC_IRQ                { IRQ_PBA8_DMAC, NO_IRQ }
140 #define DMAC_DMA                { 0, 0 }
141 #define SCTL_IRQ                { NO_IRQ, NO_IRQ }
142 #define SCTL_DMA                { 0, 0 }
143 #define PBA8_WATCHDOG_IRQ       { IRQ_PBA8_WATCHDOG, NO_IRQ }
144 #define PBA8_WATCHDOG_DMA       { 0, 0 }
145 #define PBA8_GPIO0_IRQ          { IRQ_PBA8_GPIO0, NO_IRQ }
146 #define PBA8_GPIO0_DMA          { 0, 0 }
147 #define GPIO1_IRQ               { IRQ_PBA8_GPIO1, NO_IRQ }
148 #define GPIO1_DMA               { 0, 0 }
149 #define PBA8_RTC_IRQ            { IRQ_PBA8_RTC, NO_IRQ }
150 #define PBA8_RTC_DMA            { 0, 0 }
151 #define SCI_IRQ                 { IRQ_PBA8_SCI, NO_IRQ }
152 #define SCI_DMA                 { 7, 6 }
153 #define PBA8_UART0_IRQ          { IRQ_PBA8_UART0, NO_IRQ }
154 #define PBA8_UART0_DMA          { 15, 14 }
155 #define PBA8_UART1_IRQ          { IRQ_PBA8_UART1, NO_IRQ }
156 #define PBA8_UART1_DMA          { 13, 12 }
157 #define PBA8_UART2_IRQ          { IRQ_PBA8_UART2, NO_IRQ }
158 #define PBA8_UART2_DMA          { 11, 10 }
159 #define PBA8_UART3_IRQ          { IRQ_PBA8_UART3, NO_IRQ }
160 #define PBA8_UART3_DMA          { 0x86, 0x87 }
161 #define PBA8_SSP_IRQ            { IRQ_PBA8_SSP, NO_IRQ }
162 #define PBA8_SSP_DMA            { 9, 8 }
163
164 /* FPGA Primecells */
165 AMBA_DEVICE(aaci,       "fpga:04",      AACI,           NULL);
166 AMBA_DEVICE(mmc0,       "fpga:05",      MMCI0,          &realview_mmc0_plat_data);
167 AMBA_DEVICE(kmi0,       "fpga:06",      KMI0,           NULL);
168 AMBA_DEVICE(kmi1,       "fpga:07",      KMI1,           NULL);
169 AMBA_DEVICE(uart3,      "fpga:09",      PBA8_UART3,     NULL);
170
171 /* DevChip Primecells */
172 AMBA_DEVICE(smc,        "dev:00",       PBA8_SMC,       NULL);
173 AMBA_DEVICE(sctl,       "dev:e0",       SCTL,           NULL);
174 AMBA_DEVICE(wdog,       "dev:e1",       PBA8_WATCHDOG, NULL);
175 AMBA_DEVICE(gpio0,      "dev:e4",       PBA8_GPIO0,     &gpio0_plat_data);
176 AMBA_DEVICE(gpio1,      "dev:e5",       GPIO1,          &gpio1_plat_data);
177 AMBA_DEVICE(gpio2,      "dev:e6",       GPIO2,          &gpio2_plat_data);
178 AMBA_DEVICE(rtc,        "dev:e8",       PBA8_RTC,       NULL);
179 AMBA_DEVICE(sci0,       "dev:f0",       SCI,            NULL);
180 AMBA_DEVICE(uart0,      "dev:f1",       PBA8_UART0,     NULL);
181 AMBA_DEVICE(uart1,      "dev:f2",       PBA8_UART1,     NULL);
182 AMBA_DEVICE(uart2,      "dev:f3",       PBA8_UART2,     NULL);
183 AMBA_DEVICE(ssp0,       "dev:f4",       PBA8_SSP,       NULL);
184
185 /* Primecells on the NEC ISSP chip */
186 AMBA_DEVICE(clcd,       "issp:20",      PBA8_CLCD,      &clcd_plat_data);
187 AMBA_DEVICE(dmac,       "issp:30",      DMAC,           NULL);
188
189 static struct amba_device *amba_devs[] __initdata = {
190         &dmac_device,
191         &uart0_device,
192         &uart1_device,
193         &uart2_device,
194         &uart3_device,
195         &smc_device,
196         &clcd_device,
197         &sctl_device,
198         &wdog_device,
199         &gpio0_device,
200         &gpio1_device,
201         &gpio2_device,
202         &rtc_device,
203         &sci0_device,
204         &ssp0_device,
205         &aaci_device,
206         &mmc0_device,
207         &kmi0_device,
208         &kmi1_device,
209 };
210
211 /*
212  * RealView PB-A8 platform devices
213  */
214 static struct resource realview_pba8_flash_resource[] = {
215         [0] = {
216                 .start          = REALVIEW_PBA8_FLASH0_BASE,
217                 .end            = REALVIEW_PBA8_FLASH0_BASE + REALVIEW_PBA8_FLASH0_SIZE - 1,
218                 .flags          = IORESOURCE_MEM,
219         },
220         [1] = {
221                 .start          = REALVIEW_PBA8_FLASH1_BASE,
222                 .end            = REALVIEW_PBA8_FLASH1_BASE + REALVIEW_PBA8_FLASH1_SIZE - 1,
223                 .flags          = IORESOURCE_MEM,
224         },
225 };
226
227 static struct resource realview_pba8_smsc911x_resources[] = {
228         [0] = {
229                 .start          = REALVIEW_PBA8_ETH_BASE,
230                 .end            = REALVIEW_PBA8_ETH_BASE + SZ_64K - 1,
231                 .flags          = IORESOURCE_MEM,
232         },
233         [1] = {
234                 .start          = IRQ_PBA8_ETH,
235                 .end            = IRQ_PBA8_ETH,
236                 .flags          = IORESOURCE_IRQ,
237         },
238 };
239
240 static struct resource realview_pba8_isp1761_resources[] = {
241         [0] = {
242                 .start          = REALVIEW_PBA8_USB_BASE,
243                 .end            = REALVIEW_PBA8_USB_BASE + SZ_128K - 1,
244                 .flags          = IORESOURCE_MEM,
245         },
246         [1] = {
247                 .start          = IRQ_PBA8_USB,
248                 .end            = IRQ_PBA8_USB,
249                 .flags          = IORESOURCE_IRQ,
250         },
251 };
252
253 static void __init gic_init_irq(void)
254 {
255         /* ARM PB-A8 on-board GIC */
256         gic_cpu_base_addr = __io_address(REALVIEW_PBA8_GIC_CPU_BASE);
257         gic_dist_init(0, __io_address(REALVIEW_PBA8_GIC_DIST_BASE), IRQ_PBA8_GIC_START);
258         gic_cpu_init(0, __io_address(REALVIEW_PBA8_GIC_CPU_BASE));
259 }
260
261 static void __init realview_pba8_timer_init(void)
262 {
263         timer0_va_base = __io_address(REALVIEW_PBA8_TIMER0_1_BASE);
264         timer1_va_base = __io_address(REALVIEW_PBA8_TIMER0_1_BASE) + 0x20;
265         timer2_va_base = __io_address(REALVIEW_PBA8_TIMER2_3_BASE);
266         timer3_va_base = __io_address(REALVIEW_PBA8_TIMER2_3_BASE) + 0x20;
267
268         realview_timer_init(IRQ_PBA8_TIMER0_1);
269 }
270
271 static struct sys_timer realview_pba8_timer = {
272         .init           = realview_pba8_timer_init,
273 };
274
275 static void __init realview_pba8_init(void)
276 {
277         int i;
278
279         realview_flash_register(realview_pba8_flash_resource,
280                                 ARRAY_SIZE(realview_pba8_flash_resource));
281         realview_eth_register(NULL, realview_pba8_smsc911x_resources);
282         platform_device_register(&realview_i2c_device);
283         platform_device_register(&realview_cf_device);
284         realview_usb_register(realview_pba8_isp1761_resources);
285
286         for (i = 0; i < ARRAY_SIZE(amba_devs); i++) {
287                 struct amba_device *d = amba_devs[i];
288                 amba_device_register(d, &iomem_resource);
289         }
290
291 #ifdef CONFIG_LEDS
292         leds_event = realview_leds_event;
293 #endif
294 }
295
296 MACHINE_START(REALVIEW_PBA8, "ARM-RealView PB-A8")
297         /* Maintainer: ARM Ltd/Deep Blue Solutions Ltd */
298         .phys_io        = REALVIEW_PBA8_UART0_BASE,
299         .io_pg_offst    = (IO_ADDRESS(REALVIEW_PBA8_UART0_BASE) >> 18) & 0xfffc,
300         .boot_params    = PHYS_OFFSET + 0x00000100,
301         .map_io         = realview_pba8_map_io,
302         .init_irq       = gic_init_irq,
303         .timer          = &realview_pba8_timer,
304         .init_machine   = realview_pba8_init,
305 MACHINE_END