[ARM] realview: add PL061 gpiolib support
[linux-2.6.git] / arch / arm / mach-realview / realview_pb11mp.c
1 /*
2  *  linux/arch/arm/mach-realview/realview_pb11mp.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 <mach/hardware.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 #include <asm/hardware/cache-l2x0.h>
36 #include <asm/localtimer.h>
37
38 #include <asm/mach/arch.h>
39 #include <asm/mach/flash.h>
40 #include <asm/mach/map.h>
41 #include <asm/mach/mmc.h>
42 #include <asm/mach/time.h>
43
44 #include <mach/board-pb11mp.h>
45 #include <mach/irqs.h>
46
47 #include "core.h"
48 #include "clock.h"
49
50 static struct map_desc realview_pb11mp_io_desc[] __initdata = {
51         {
52                 .virtual        = IO_ADDRESS(REALVIEW_SYS_BASE),
53                 .pfn            = __phys_to_pfn(REALVIEW_SYS_BASE),
54                 .length         = SZ_4K,
55                 .type           = MT_DEVICE,
56         }, {
57                 .virtual        = IO_ADDRESS(REALVIEW_PB11MP_GIC_CPU_BASE),
58                 .pfn            = __phys_to_pfn(REALVIEW_PB11MP_GIC_CPU_BASE),
59                 .length         = SZ_4K,
60                 .type           = MT_DEVICE,
61         }, {
62                 .virtual        = IO_ADDRESS(REALVIEW_PB11MP_GIC_DIST_BASE),
63                 .pfn            = __phys_to_pfn(REALVIEW_PB11MP_GIC_DIST_BASE),
64                 .length         = SZ_4K,
65                 .type           = MT_DEVICE,
66         }, {
67                 .virtual        = IO_ADDRESS(REALVIEW_TC11MP_GIC_CPU_BASE),
68                 .pfn            = __phys_to_pfn(REALVIEW_TC11MP_GIC_CPU_BASE),
69                 .length         = SZ_4K,
70                 .type           = MT_DEVICE,
71         }, {
72                 .virtual        = IO_ADDRESS(REALVIEW_TC11MP_GIC_DIST_BASE),
73                 .pfn            = __phys_to_pfn(REALVIEW_TC11MP_GIC_DIST_BASE),
74                 .length         = SZ_4K,
75                 .type           = MT_DEVICE,
76         }, {
77                 .virtual        = IO_ADDRESS(REALVIEW_SCTL_BASE),
78                 .pfn            = __phys_to_pfn(REALVIEW_SCTL_BASE),
79                 .length         = SZ_4K,
80                 .type           = MT_DEVICE,
81         }, {
82                 .virtual        = IO_ADDRESS(REALVIEW_PB11MP_TIMER0_1_BASE),
83                 .pfn            = __phys_to_pfn(REALVIEW_PB11MP_TIMER0_1_BASE),
84                 .length         = SZ_4K,
85                 .type           = MT_DEVICE,
86         }, {
87                 .virtual        = IO_ADDRESS(REALVIEW_PB11MP_TIMER2_3_BASE),
88                 .pfn            = __phys_to_pfn(REALVIEW_PB11MP_TIMER2_3_BASE),
89                 .length         = SZ_4K,
90                 .type           = MT_DEVICE,
91         }, {
92                 .virtual        = IO_ADDRESS(REALVIEW_TC11MP_L220_BASE),
93                 .pfn            = __phys_to_pfn(REALVIEW_TC11MP_L220_BASE),
94                 .length         = SZ_8K,
95                 .type           = MT_DEVICE,
96         },
97 #ifdef CONFIG_DEBUG_LL
98         {
99                 .virtual        = IO_ADDRESS(REALVIEW_PB11MP_UART0_BASE),
100                 .pfn            = __phys_to_pfn(REALVIEW_PB11MP_UART0_BASE),
101                 .length         = SZ_4K,
102                 .type           = MT_DEVICE,
103         },
104 #endif
105 };
106
107 static void __init realview_pb11mp_map_io(void)
108 {
109         iotable_init(realview_pb11mp_io_desc, ARRAY_SIZE(realview_pb11mp_io_desc));
110 }
111
112 static struct pl061_platform_data gpio0_plat_data = {
113         .gpio_base      = 0,
114         .irq_base       = -1,
115 };
116
117 static struct pl061_platform_data gpio1_plat_data = {
118         .gpio_base      = 8,
119         .irq_base       = -1,
120 };
121
122 static struct pl061_platform_data gpio2_plat_data = {
123         .gpio_base      = 16,
124         .irq_base       = -1,
125 };
126
127 /*
128  * RealView PB11MPCore AMBA devices
129  */
130
131 #define GPIO2_IRQ               { IRQ_PB11MP_GPIO2, NO_IRQ }
132 #define GPIO2_DMA               { 0, 0 }
133 #define GPIO3_IRQ               { IRQ_PB11MP_GPIO3, NO_IRQ }
134 #define GPIO3_DMA               { 0, 0 }
135 #define AACI_IRQ                { IRQ_TC11MP_AACI, NO_IRQ }
136 #define AACI_DMA                { 0x80, 0x81 }
137 #define MMCI0_IRQ               { IRQ_TC11MP_MMCI0A, IRQ_TC11MP_MMCI0B }
138 #define MMCI0_DMA               { 0x84, 0 }
139 #define KMI0_IRQ                { IRQ_TC11MP_KMI0, NO_IRQ }
140 #define KMI0_DMA                { 0, 0 }
141 #define KMI1_IRQ                { IRQ_TC11MP_KMI1, NO_IRQ }
142 #define KMI1_DMA                { 0, 0 }
143 #define PB11MP_SMC_IRQ          { NO_IRQ, NO_IRQ }
144 #define PB11MP_SMC_DMA          { 0, 0 }
145 #define MPMC_IRQ                { NO_IRQ, NO_IRQ }
146 #define MPMC_DMA                { 0, 0 }
147 #define PB11MP_CLCD_IRQ         { IRQ_PB11MP_CLCD, NO_IRQ }
148 #define PB11MP_CLCD_DMA         { 0, 0 }
149 #define DMAC_IRQ                { IRQ_PB11MP_DMAC, NO_IRQ }
150 #define DMAC_DMA                { 0, 0 }
151 #define SCTL_IRQ                { NO_IRQ, NO_IRQ }
152 #define SCTL_DMA                { 0, 0 }
153 #define PB11MP_WATCHDOG_IRQ     { IRQ_PB11MP_WATCHDOG, NO_IRQ }
154 #define PB11MP_WATCHDOG_DMA     { 0, 0 }
155 #define PB11MP_GPIO0_IRQ        { IRQ_PB11MP_GPIO0, NO_IRQ }
156 #define PB11MP_GPIO0_DMA        { 0, 0 }
157 #define GPIO1_IRQ               { IRQ_PB11MP_GPIO1, NO_IRQ }
158 #define GPIO1_DMA               { 0, 0 }
159 #define PB11MP_RTC_IRQ          { IRQ_TC11MP_RTC, NO_IRQ }
160 #define PB11MP_RTC_DMA          { 0, 0 }
161 #define SCI_IRQ                 { IRQ_PB11MP_SCI, NO_IRQ }
162 #define SCI_DMA                 { 7, 6 }
163 #define PB11MP_UART0_IRQ        { IRQ_TC11MP_UART0, NO_IRQ }
164 #define PB11MP_UART0_DMA        { 15, 14 }
165 #define PB11MP_UART1_IRQ        { IRQ_TC11MP_UART1, NO_IRQ }
166 #define PB11MP_UART1_DMA        { 13, 12 }
167 #define PB11MP_UART2_IRQ        { IRQ_PB11MP_UART2, NO_IRQ }
168 #define PB11MP_UART2_DMA        { 11, 10 }
169 #define PB11MP_UART3_IRQ        { IRQ_PB11MP_UART3, NO_IRQ }
170 #define PB11MP_UART3_DMA        { 0x86, 0x87 }
171 #define PB11MP_SSP_IRQ          { IRQ_PB11MP_SSP, NO_IRQ }
172 #define PB11MP_SSP_DMA          { 9, 8 }
173
174 /* FPGA Primecells */
175 AMBA_DEVICE(aaci,       "fpga:04",      AACI,           NULL);
176 AMBA_DEVICE(mmc0,       "fpga:05",      MMCI0,          &realview_mmc0_plat_data);
177 AMBA_DEVICE(kmi0,       "fpga:06",      KMI0,           NULL);
178 AMBA_DEVICE(kmi1,       "fpga:07",      KMI1,           NULL);
179 AMBA_DEVICE(uart3,      "fpga:09",      PB11MP_UART3,   NULL);
180
181 /* DevChip Primecells */
182 AMBA_DEVICE(smc,        "dev:00",       PB11MP_SMC,     NULL);
183 AMBA_DEVICE(sctl,       "dev:e0",       SCTL,           NULL);
184 AMBA_DEVICE(wdog,       "dev:e1",       PB11MP_WATCHDOG, NULL);
185 AMBA_DEVICE(gpio0,      "dev:e4",       PB11MP_GPIO0,   &gpio0_plat_data);
186 AMBA_DEVICE(gpio1,      "dev:e5",       GPIO1,          &gpio1_plat_data);
187 AMBA_DEVICE(gpio2,      "dev:e6",       GPIO2,          &gpio2_plat_data);
188 AMBA_DEVICE(rtc,        "dev:e8",       PB11MP_RTC,     NULL);
189 AMBA_DEVICE(sci0,       "dev:f0",       SCI,            NULL);
190 AMBA_DEVICE(uart0,      "dev:f1",       PB11MP_UART0,   NULL);
191 AMBA_DEVICE(uart1,      "dev:f2",       PB11MP_UART1,   NULL);
192 AMBA_DEVICE(uart2,      "dev:f3",       PB11MP_UART2,   NULL);
193 AMBA_DEVICE(ssp0,       "dev:f4",       PB11MP_SSP,     NULL);
194
195 /* Primecells on the NEC ISSP chip */
196 AMBA_DEVICE(clcd,       "issp:20",      PB11MP_CLCD,    &clcd_plat_data);
197 AMBA_DEVICE(dmac,       "issp:30",      DMAC,           NULL);
198
199 static struct amba_device *amba_devs[] __initdata = {
200         &dmac_device,
201         &uart0_device,
202         &uart1_device,
203         &uart2_device,
204         &uart3_device,
205         &smc_device,
206         &clcd_device,
207         &sctl_device,
208         &wdog_device,
209         &gpio0_device,
210         &gpio1_device,
211         &gpio2_device,
212         &rtc_device,
213         &sci0_device,
214         &ssp0_device,
215         &aaci_device,
216         &mmc0_device,
217         &kmi0_device,
218         &kmi1_device,
219 };
220
221 /*
222  * RealView PB11MPCore platform devices
223  */
224 static struct resource realview_pb11mp_flash_resource[] = {
225         [0] = {
226                 .start          = REALVIEW_PB11MP_FLASH0_BASE,
227                 .end            = REALVIEW_PB11MP_FLASH0_BASE + REALVIEW_PB11MP_FLASH0_SIZE - 1,
228                 .flags          = IORESOURCE_MEM,
229         },
230         [1] = {
231                 .start          = REALVIEW_PB11MP_FLASH1_BASE,
232                 .end            = REALVIEW_PB11MP_FLASH1_BASE + REALVIEW_PB11MP_FLASH1_SIZE - 1,
233                 .flags          = IORESOURCE_MEM,
234         },
235 };
236
237 static struct resource realview_pb11mp_smsc911x_resources[] = {
238         [0] = {
239                 .start          = REALVIEW_PB11MP_ETH_BASE,
240                 .end            = REALVIEW_PB11MP_ETH_BASE + SZ_64K - 1,
241                 .flags          = IORESOURCE_MEM,
242         },
243         [1] = {
244                 .start          = IRQ_TC11MP_ETH,
245                 .end            = IRQ_TC11MP_ETH,
246                 .flags          = IORESOURCE_IRQ,
247         },
248 };
249
250 static struct resource realview_pb11mp_isp1761_resources[] = {
251         [0] = {
252                 .start          = REALVIEW_PB11MP_USB_BASE,
253                 .end            = REALVIEW_PB11MP_USB_BASE + SZ_128K - 1,
254                 .flags          = IORESOURCE_MEM,
255         },
256         [1] = {
257                 .start          = IRQ_TC11MP_USB,
258                 .end            = IRQ_TC11MP_USB,
259                 .flags          = IORESOURCE_IRQ,
260         },
261 };
262
263 static void __init gic_init_irq(void)
264 {
265         unsigned int pldctrl;
266
267         /* new irq mode with no DCC */
268         writel(0x0000a05f, __io_address(REALVIEW_SYS_LOCK));
269         pldctrl = readl(__io_address(REALVIEW_SYS_BASE) + REALVIEW_PB11MP_SYS_PLD_CTRL1);
270         pldctrl |= 2 << 22;
271         writel(pldctrl, __io_address(REALVIEW_SYS_BASE) + REALVIEW_PB11MP_SYS_PLD_CTRL1);
272         writel(0x00000000, __io_address(REALVIEW_SYS_LOCK));
273
274         /* ARM11MPCore test chip GIC, primary */
275         gic_cpu_base_addr = __io_address(REALVIEW_TC11MP_GIC_CPU_BASE);
276         gic_dist_init(0, __io_address(REALVIEW_TC11MP_GIC_DIST_BASE), 29);
277         gic_cpu_init(0, gic_cpu_base_addr);
278
279         /* board GIC, secondary */
280         gic_dist_init(1, __io_address(REALVIEW_PB11MP_GIC_DIST_BASE), IRQ_PB11MP_GIC_START);
281         gic_cpu_init(1, __io_address(REALVIEW_PB11MP_GIC_CPU_BASE));
282         gic_cascade_irq(1, IRQ_TC11MP_PB_IRQ1);
283 }
284
285 static void __init realview_pb11mp_timer_init(void)
286 {
287         timer0_va_base = __io_address(REALVIEW_PB11MP_TIMER0_1_BASE);
288         timer1_va_base = __io_address(REALVIEW_PB11MP_TIMER0_1_BASE) + 0x20;
289         timer2_va_base = __io_address(REALVIEW_PB11MP_TIMER2_3_BASE);
290         timer3_va_base = __io_address(REALVIEW_PB11MP_TIMER2_3_BASE) + 0x20;
291
292 #ifdef CONFIG_LOCAL_TIMERS
293         twd_base = __io_address(REALVIEW_TC11MP_TWD_BASE);
294 #endif
295         realview_timer_init(IRQ_TC11MP_TIMER0_1);
296 }
297
298 static struct sys_timer realview_pb11mp_timer = {
299         .init           = realview_pb11mp_timer_init,
300 };
301
302 static void __init realview_pb11mp_init(void)
303 {
304         int i;
305
306 #ifdef CONFIG_CACHE_L2X0
307         /* 1MB (128KB/way), 8-way associativity, evmon/parity/share enabled
308          * Bits:  .... ...0 0111 1001 0000 .... .... .... */
309         l2x0_init(__io_address(REALVIEW_TC11MP_L220_BASE), 0x00790000, 0xfe000fff);
310 #endif
311
312         realview_flash_register(realview_pb11mp_flash_resource,
313                                 ARRAY_SIZE(realview_pb11mp_flash_resource));
314         realview_eth_register(NULL, realview_pb11mp_smsc911x_resources);
315         platform_device_register(&realview_i2c_device);
316         platform_device_register(&realview_cf_device);
317         realview_usb_register(realview_pb11mp_isp1761_resources);
318
319         for (i = 0; i < ARRAY_SIZE(amba_devs); i++) {
320                 struct amba_device *d = amba_devs[i];
321                 amba_device_register(d, &iomem_resource);
322         }
323
324 #ifdef CONFIG_LEDS
325         leds_event = realview_leds_event;
326 #endif
327 }
328
329 MACHINE_START(REALVIEW_PB11MP, "ARM-RealView PB11MPCore")
330         /* Maintainer: ARM Ltd/Deep Blue Solutions Ltd */
331         .phys_io        = REALVIEW_PB11MP_UART0_BASE,
332         .io_pg_offst    = (IO_ADDRESS(REALVIEW_PB11MP_UART0_BASE) >> 18) & 0xfffc,
333         .boot_params    = PHYS_OFFSET + 0x00000100,
334         .map_io         = realview_pb11mp_map_io,
335         .init_irq       = gic_init_irq,
336         .timer          = &realview_pb11mp_timer,
337         .init_machine   = realview_pb11mp_init,
338 MACHINE_END