[ARM] realview: add PL061 gpiolib support
[linux-3.10.git] / arch / arm / mach-realview / realview_pbx.c
1 /*
2  *  arch/arm/mach-realview/realview_pbx.c
3  *
4  *  Copyright (C) 2009 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 version 2 as
9  * published by the Free Software Foundation.
10  *
11  * This program is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14  * GNU General Public License for more details.
15  *
16  * You should have received a copy of the GNU General Public License
17  * along with this program; if not, write to the Free Software
18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
19  */
20
21 #include <linux/init.h>
22 #include <linux/platform_device.h>
23 #include <linux/sysdev.h>
24 #include <linux/amba/bus.h>
25 #include <linux/amba/pl061.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/smp_twd.h>
32 #include <asm/hardware/gic.h>
33 #include <asm/hardware/cache-l2x0.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-pbx.h>
42 #include <mach/irqs.h>
43
44 #include "core.h"
45
46 static struct map_desc realview_pbx_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_PBX_GIC_CPU_BASE),
54                 .pfn            = __phys_to_pfn(REALVIEW_PBX_GIC_CPU_BASE),
55                 .length         = SZ_4K,
56                 .type           = MT_DEVICE,
57         }, {
58                 .virtual        = IO_ADDRESS(REALVIEW_PBX_GIC_DIST_BASE),
59                 .pfn            = __phys_to_pfn(REALVIEW_PBX_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_PBX_TIMER0_1_BASE),
69                 .pfn            = __phys_to_pfn(REALVIEW_PBX_TIMER0_1_BASE),
70                 .length         = SZ_4K,
71                 .type           = MT_DEVICE,
72         }, {
73                 .virtual        = IO_ADDRESS(REALVIEW_PBX_TIMER2_3_BASE),
74                 .pfn            = __phys_to_pfn(REALVIEW_PBX_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_PBX_PCI_BASE),
82                 .length         = REALVIEW_PBX_PCI_BASE_SIZE,
83                 .type           = MT_DEVICE,
84         },
85 #endif
86 #ifdef CONFIG_DEBUG_LL
87         {
88                 .virtual        = IO_ADDRESS(REALVIEW_PBX_UART0_BASE),
89                 .pfn            = __phys_to_pfn(REALVIEW_PBX_UART0_BASE),
90                 .length         = SZ_4K,
91                 .type           = MT_DEVICE,
92         },
93 #endif
94 };
95
96 static struct map_desc realview_local_io_desc[] __initdata = {
97         {
98                 .virtual        = IO_ADDRESS(REALVIEW_PBX_TILE_GIC_CPU_BASE),
99                 .pfn            = __phys_to_pfn(REALVIEW_PBX_TILE_GIC_CPU_BASE),
100                 .length         = SZ_4K,
101                 .type           = MT_DEVICE,
102         }, {
103                 .virtual        = IO_ADDRESS(REALVIEW_PBX_TILE_GIC_DIST_BASE),
104                 .pfn            = __phys_to_pfn(REALVIEW_PBX_TILE_GIC_DIST_BASE),
105                 .length         = SZ_4K,
106                 .type           = MT_DEVICE,
107         }, {
108                 .virtual        = IO_ADDRESS(REALVIEW_PBX_TILE_L220_BASE),
109                 .pfn            = __phys_to_pfn(REALVIEW_PBX_TILE_L220_BASE),
110                 .length         = SZ_8K,
111                 .type           = MT_DEVICE,
112         }
113 };
114
115 static void __init realview_pbx_map_io(void)
116 {
117         iotable_init(realview_pbx_io_desc, ARRAY_SIZE(realview_pbx_io_desc));
118         if (core_tile_pbx11mp() || core_tile_pbxa9mp())
119                 iotable_init(realview_local_io_desc, ARRAY_SIZE(realview_local_io_desc));
120 }
121
122 static struct pl061_platform_data gpio0_plat_data = {
123         .gpio_base      = 0,
124         .irq_base       = -1,
125 };
126
127 static struct pl061_platform_data gpio1_plat_data = {
128         .gpio_base      = 8,
129         .irq_base       = -1,
130 };
131
132 static struct pl061_platform_data gpio2_plat_data = {
133         .gpio_base      = 16,
134         .irq_base       = -1,
135 };
136
137 /*
138  * RealView PBXCore AMBA devices
139  */
140
141 #define GPIO2_IRQ               { IRQ_PBX_GPIO2, NO_IRQ }
142 #define GPIO2_DMA               { 0, 0 }
143 #define GPIO3_IRQ               { IRQ_PBX_GPIO3, NO_IRQ }
144 #define GPIO3_DMA               { 0, 0 }
145 #define AACI_IRQ                { IRQ_PBX_AACI, NO_IRQ }
146 #define AACI_DMA                { 0x80, 0x81 }
147 #define MMCI0_IRQ               { IRQ_PBX_MMCI0A, IRQ_PBX_MMCI0B }
148 #define MMCI0_DMA               { 0x84, 0 }
149 #define KMI0_IRQ                { IRQ_PBX_KMI0, NO_IRQ }
150 #define KMI0_DMA                { 0, 0 }
151 #define KMI1_IRQ                { IRQ_PBX_KMI1, NO_IRQ }
152 #define KMI1_DMA                { 0, 0 }
153 #define PBX_SMC_IRQ             { NO_IRQ, NO_IRQ }
154 #define PBX_SMC_DMA             { 0, 0 }
155 #define MPMC_IRQ                { NO_IRQ, NO_IRQ }
156 #define MPMC_DMA                { 0, 0 }
157 #define PBX_CLCD_IRQ            { IRQ_PBX_CLCD, NO_IRQ }
158 #define PBX_CLCD_DMA            { 0, 0 }
159 #define DMAC_IRQ                { IRQ_PBX_DMAC, NO_IRQ }
160 #define DMAC_DMA                { 0, 0 }
161 #define SCTL_IRQ                { NO_IRQ, NO_IRQ }
162 #define SCTL_DMA                { 0, 0 }
163 #define PBX_WATCHDOG_IRQ        { IRQ_PBX_WATCHDOG, NO_IRQ }
164 #define PBX_WATCHDOG_DMA        { 0, 0 }
165 #define PBX_GPIO0_IRQ           { IRQ_PBX_GPIO0, NO_IRQ }
166 #define PBX_GPIO0_DMA           { 0, 0 }
167 #define GPIO1_IRQ               { IRQ_PBX_GPIO1, NO_IRQ }
168 #define GPIO1_DMA               { 0, 0 }
169 #define PBX_RTC_IRQ             { IRQ_PBX_RTC, NO_IRQ }
170 #define PBX_RTC_DMA             { 0, 0 }
171 #define SCI_IRQ                 { IRQ_PBX_SCI, NO_IRQ }
172 #define SCI_DMA                 { 7, 6 }
173 #define PBX_UART0_IRQ           { IRQ_PBX_UART0, NO_IRQ }
174 #define PBX_UART0_DMA           { 15, 14 }
175 #define PBX_UART1_IRQ           { IRQ_PBX_UART1, NO_IRQ }
176 #define PBX_UART1_DMA           { 13, 12 }
177 #define PBX_UART2_IRQ           { IRQ_PBX_UART2, NO_IRQ }
178 #define PBX_UART2_DMA           { 11, 10 }
179 #define PBX_UART3_IRQ           { IRQ_PBX_UART3, NO_IRQ }
180 #define PBX_UART3_DMA           { 0x86, 0x87 }
181 #define PBX_SSP_IRQ             { IRQ_PBX_SSP, NO_IRQ }
182 #define PBX_SSP_DMA             { 9, 8 }
183
184 /* FPGA Primecells */
185 AMBA_DEVICE(aaci,       "fpga:04",      AACI,           NULL);
186 AMBA_DEVICE(mmc0,       "fpga:05",      MMCI0,          &realview_mmc0_plat_data);
187 AMBA_DEVICE(kmi0,       "fpga:06",      KMI0,           NULL);
188 AMBA_DEVICE(kmi1,       "fpga:07",      KMI1,           NULL);
189 AMBA_DEVICE(uart3,      "fpga:09",      PBX_UART3,      NULL);
190
191 /* DevChip Primecells */
192 AMBA_DEVICE(smc,        "dev:00",       PBX_SMC,        NULL);
193 AMBA_DEVICE(sctl,       "dev:e0",       SCTL,           NULL);
194 AMBA_DEVICE(wdog,       "dev:e1",       PBX_WATCHDOG,   NULL);
195 AMBA_DEVICE(gpio0,      "dev:e4",       PBX_GPIO0,      &gpio0_plat_data);
196 AMBA_DEVICE(gpio1,      "dev:e5",       GPIO1,          &gpio1_plat_data);
197 AMBA_DEVICE(gpio2,      "dev:e6",       GPIO2,          &gpio2_plat_data);
198 AMBA_DEVICE(rtc,        "dev:e8",       PBX_RTC,        NULL);
199 AMBA_DEVICE(sci0,       "dev:f0",       SCI,            NULL);
200 AMBA_DEVICE(uart0,      "dev:f1",       PBX_UART0,      NULL);
201 AMBA_DEVICE(uart1,      "dev:f2",       PBX_UART1,      NULL);
202 AMBA_DEVICE(uart2,      "dev:f3",       PBX_UART2,      NULL);
203 AMBA_DEVICE(ssp0,       "dev:f4",       PBX_SSP,        NULL);
204
205 /* Primecells on the NEC ISSP chip */
206 AMBA_DEVICE(clcd,       "issp:20",      PBX_CLCD,       &clcd_plat_data);
207 AMBA_DEVICE(dmac,       "issp:30",      DMAC,           NULL);
208
209 static struct amba_device *amba_devs[] __initdata = {
210         &dmac_device,
211         &uart0_device,
212         &uart1_device,
213         &uart2_device,
214         &uart3_device,
215         &smc_device,
216         &clcd_device,
217         &sctl_device,
218         &wdog_device,
219         &gpio0_device,
220         &gpio1_device,
221         &gpio2_device,
222         &rtc_device,
223         &sci0_device,
224         &ssp0_device,
225         &aaci_device,
226         &mmc0_device,
227         &kmi0_device,
228         &kmi1_device,
229 };
230
231 /*
232  * RealView PB-X platform devices
233  */
234 static struct resource realview_pbx_flash_resources[] = {
235         [0] = {
236                 .start          = REALVIEW_PBX_FLASH0_BASE,
237                 .end            = REALVIEW_PBX_FLASH0_BASE + REALVIEW_PBX_FLASH0_SIZE - 1,
238                 .flags          = IORESOURCE_MEM,
239         },
240         [1] = {
241                 .start          = REALVIEW_PBX_FLASH1_BASE,
242                 .end            = REALVIEW_PBX_FLASH1_BASE + REALVIEW_PBX_FLASH1_SIZE - 1,
243                 .flags          = IORESOURCE_MEM,
244         },
245 };
246
247 static struct resource realview_pbx_smsc911x_resources[] = {
248         [0] = {
249                 .start          = REALVIEW_PBX_ETH_BASE,
250                 .end            = REALVIEW_PBX_ETH_BASE + SZ_64K - 1,
251                 .flags          = IORESOURCE_MEM,
252         },
253         [1] = {
254                 .start          = IRQ_PBX_ETH,
255                 .end            = IRQ_PBX_ETH,
256                 .flags          = IORESOURCE_IRQ,
257         },
258 };
259
260 static struct resource realview_pbx_isp1761_resources[] = {
261         [0] = {
262                 .start          = REALVIEW_PBX_USB_BASE,
263                 .end            = REALVIEW_PBX_USB_BASE + SZ_128K - 1,
264                 .flags          = IORESOURCE_MEM,
265         },
266         [1] = {
267                 .start          = IRQ_PBX_USB,
268                 .end            = IRQ_PBX_USB,
269                 .flags          = IORESOURCE_IRQ,
270         },
271 };
272
273 static void __init gic_init_irq(void)
274 {
275         /* ARM PBX on-board GIC */
276         if (core_tile_pbx11mp() || core_tile_pbxa9mp()) {
277                 gic_cpu_base_addr = __io_address(REALVIEW_PBX_TILE_GIC_CPU_BASE);
278                 gic_dist_init(0, __io_address(REALVIEW_PBX_TILE_GIC_DIST_BASE),
279                               29);
280                 gic_cpu_init(0, __io_address(REALVIEW_PBX_TILE_GIC_CPU_BASE));
281         } else {
282                 gic_cpu_base_addr = __io_address(REALVIEW_PBX_GIC_CPU_BASE);
283                 gic_dist_init(0, __io_address(REALVIEW_PBX_GIC_DIST_BASE),
284                               IRQ_PBX_GIC_START);
285                 gic_cpu_init(0, __io_address(REALVIEW_PBX_GIC_CPU_BASE));
286         }
287 }
288
289 static void __init realview_pbx_timer_init(void)
290 {
291         timer0_va_base = __io_address(REALVIEW_PBX_TIMER0_1_BASE);
292         timer1_va_base = __io_address(REALVIEW_PBX_TIMER0_1_BASE) + 0x20;
293         timer2_va_base = __io_address(REALVIEW_PBX_TIMER2_3_BASE);
294         timer3_va_base = __io_address(REALVIEW_PBX_TIMER2_3_BASE) + 0x20;
295
296 #ifdef CONFIG_LOCAL_TIMERS
297         if (core_tile_pbx11mp() || core_tile_pbxa9mp())
298                 twd_base = __io_address(REALVIEW_PBX_TILE_TWD_BASE);
299 #endif
300         realview_timer_init(IRQ_PBX_TIMER0_1);
301 }
302
303 static struct sys_timer realview_pbx_timer = {
304         .init           = realview_pbx_timer_init,
305 };
306
307 static void __init realview_pbx_init(void)
308 {
309         int i;
310
311 #ifdef CONFIG_CACHE_L2X0
312         if (core_tile_pbxa9mp()) {
313                 void __iomem *l2x0_base =
314                         __io_address(REALVIEW_PBX_TILE_L220_BASE);
315
316                 /* set RAM latencies to 1 cycle for eASIC */
317                 writel(0, l2x0_base + L2X0_TAG_LATENCY_CTRL);
318                 writel(0, l2x0_base + L2X0_DATA_LATENCY_CTRL);
319
320                 /* 16KB way size, 8-way associativity, parity disabled
321                  * Bits:  .. 0 0 0 0 1 00 1 0 1 001 0 000 0 .... .... .... */
322                 l2x0_init(l2x0_base, 0x02520000, 0xc0000fff);
323         }
324 #endif
325
326         realview_flash_register(realview_pbx_flash_resources,
327                                 ARRAY_SIZE(realview_pbx_flash_resources));
328         realview_eth_register(NULL, realview_pbx_smsc911x_resources);
329         platform_device_register(&realview_i2c_device);
330         platform_device_register(&realview_cf_device);
331         realview_usb_register(realview_pbx_isp1761_resources);
332
333         for (i = 0; i < ARRAY_SIZE(amba_devs); i++) {
334                 struct amba_device *d = amba_devs[i];
335                 amba_device_register(d, &iomem_resource);
336         }
337
338 #ifdef CONFIG_LEDS
339         leds_event = realview_leds_event;
340 #endif
341 }
342
343 MACHINE_START(REALVIEW_PBX, "ARM-RealView PBX")
344         /* Maintainer: ARM Ltd/Deep Blue Solutions Ltd */
345         .phys_io        = REALVIEW_PBX_UART0_BASE,
346         .io_pg_offst    = (IO_ADDRESS(REALVIEW_PBX_UART0_BASE) >> 18) & 0xfffc,
347         .boot_params    = PHYS_OFFSET + 0x00000100,
348         .map_io         = realview_pbx_map_io,
349         .init_irq       = gic_init_irq,
350         .timer          = &realview_pbx_timer,
351         .init_machine   = realview_pbx_init,
352 MACHINE_END