[ARM] realview: convert to clkdev and lookup clocks by device name
[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/io.h>
27
28 #include <mach/hardware.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/icst307.h>
34 #include <asm/hardware/cache-l2x0.h>
35
36 #include <asm/mach/arch.h>
37 #include <asm/mach/flash.h>
38 #include <asm/mach/map.h>
39 #include <asm/mach/mmc.h>
40 #include <asm/mach/time.h>
41
42 #include <mach/board-pb11mp.h>
43 #include <mach/irqs.h>
44
45 #include "core.h"
46 #include "clock.h"
47
48 static struct map_desc realview_pb11mp_io_desc[] __initdata = {
49         {
50                 .virtual        = IO_ADDRESS(REALVIEW_SYS_BASE),
51                 .pfn            = __phys_to_pfn(REALVIEW_SYS_BASE),
52                 .length         = SZ_4K,
53                 .type           = MT_DEVICE,
54         }, {
55                 .virtual        = IO_ADDRESS(REALVIEW_PB11MP_GIC_CPU_BASE),
56                 .pfn            = __phys_to_pfn(REALVIEW_PB11MP_GIC_CPU_BASE),
57                 .length         = SZ_4K,
58                 .type           = MT_DEVICE,
59         }, {
60                 .virtual        = IO_ADDRESS(REALVIEW_PB11MP_GIC_DIST_BASE),
61                 .pfn            = __phys_to_pfn(REALVIEW_PB11MP_GIC_DIST_BASE),
62                 .length         = SZ_4K,
63                 .type           = MT_DEVICE,
64         }, {
65                 .virtual        = IO_ADDRESS(REALVIEW_TC11MP_GIC_CPU_BASE),
66                 .pfn            = __phys_to_pfn(REALVIEW_TC11MP_GIC_CPU_BASE),
67                 .length         = SZ_4K,
68                 .type           = MT_DEVICE,
69         }, {
70                 .virtual        = IO_ADDRESS(REALVIEW_TC11MP_GIC_DIST_BASE),
71                 .pfn            = __phys_to_pfn(REALVIEW_TC11MP_GIC_DIST_BASE),
72                 .length         = SZ_4K,
73                 .type           = MT_DEVICE,
74         }, {
75                 .virtual        = IO_ADDRESS(REALVIEW_SCTL_BASE),
76                 .pfn            = __phys_to_pfn(REALVIEW_SCTL_BASE),
77                 .length         = SZ_4K,
78                 .type           = MT_DEVICE,
79         }, {
80                 .virtual        = IO_ADDRESS(REALVIEW_PB11MP_TIMER0_1_BASE),
81                 .pfn            = __phys_to_pfn(REALVIEW_PB11MP_TIMER0_1_BASE),
82                 .length         = SZ_4K,
83                 .type           = MT_DEVICE,
84         }, {
85                 .virtual        = IO_ADDRESS(REALVIEW_PB11MP_TIMER2_3_BASE),
86                 .pfn            = __phys_to_pfn(REALVIEW_PB11MP_TIMER2_3_BASE),
87                 .length         = SZ_4K,
88                 .type           = MT_DEVICE,
89         }, {
90                 .virtual        = IO_ADDRESS(REALVIEW_TC11MP_L220_BASE),
91                 .pfn            = __phys_to_pfn(REALVIEW_TC11MP_L220_BASE),
92                 .length         = SZ_8K,
93                 .type           = MT_DEVICE,
94         },
95 #ifdef CONFIG_DEBUG_LL
96         {
97                 .virtual        = IO_ADDRESS(REALVIEW_PB11MP_UART0_BASE),
98                 .pfn            = __phys_to_pfn(REALVIEW_PB11MP_UART0_BASE),
99                 .length         = SZ_4K,
100                 .type           = MT_DEVICE,
101         },
102 #endif
103 };
104
105 static void __init realview_pb11mp_map_io(void)
106 {
107         iotable_init(realview_pb11mp_io_desc, ARRAY_SIZE(realview_pb11mp_io_desc));
108 }
109
110 /*
111  * RealView PB11MPCore AMBA devices
112  */
113
114 #define GPIO2_IRQ               { IRQ_PB11MP_GPIO2, NO_IRQ }
115 #define GPIO2_DMA               { 0, 0 }
116 #define GPIO3_IRQ               { IRQ_PB11MP_GPIO3, NO_IRQ }
117 #define GPIO3_DMA               { 0, 0 }
118 #define AACI_IRQ                { IRQ_TC11MP_AACI, NO_IRQ }
119 #define AACI_DMA                { 0x80, 0x81 }
120 #define MMCI0_IRQ               { IRQ_TC11MP_MMCI0A, IRQ_TC11MP_MMCI0B }
121 #define MMCI0_DMA               { 0x84, 0 }
122 #define KMI0_IRQ                { IRQ_TC11MP_KMI0, NO_IRQ }
123 #define KMI0_DMA                { 0, 0 }
124 #define KMI1_IRQ                { IRQ_TC11MP_KMI1, NO_IRQ }
125 #define KMI1_DMA                { 0, 0 }
126 #define PB11MP_SMC_IRQ          { NO_IRQ, NO_IRQ }
127 #define PB11MP_SMC_DMA          { 0, 0 }
128 #define MPMC_IRQ                { NO_IRQ, NO_IRQ }
129 #define MPMC_DMA                { 0, 0 }
130 #define PB11MP_CLCD_IRQ         { IRQ_PB11MP_CLCD, NO_IRQ }
131 #define PB11MP_CLCD_DMA         { 0, 0 }
132 #define DMAC_IRQ                { IRQ_PB11MP_DMAC, NO_IRQ }
133 #define DMAC_DMA                { 0, 0 }
134 #define SCTL_IRQ                { NO_IRQ, NO_IRQ }
135 #define SCTL_DMA                { 0, 0 }
136 #define PB11MP_WATCHDOG_IRQ     { IRQ_PB11MP_WATCHDOG, NO_IRQ }
137 #define PB11MP_WATCHDOG_DMA     { 0, 0 }
138 #define PB11MP_GPIO0_IRQ        { IRQ_PB11MP_GPIO0, NO_IRQ }
139 #define PB11MP_GPIO0_DMA        { 0, 0 }
140 #define GPIO1_IRQ               { IRQ_PB11MP_GPIO1, NO_IRQ }
141 #define GPIO1_DMA               { 0, 0 }
142 #define PB11MP_RTC_IRQ          { IRQ_TC11MP_RTC, NO_IRQ }
143 #define PB11MP_RTC_DMA          { 0, 0 }
144 #define SCI_IRQ                 { IRQ_PB11MP_SCI, NO_IRQ }
145 #define SCI_DMA                 { 7, 6 }
146 #define PB11MP_UART0_IRQ        { IRQ_TC11MP_UART0, NO_IRQ }
147 #define PB11MP_UART0_DMA        { 15, 14 }
148 #define PB11MP_UART1_IRQ        { IRQ_TC11MP_UART1, NO_IRQ }
149 #define PB11MP_UART1_DMA        { 13, 12 }
150 #define PB11MP_UART2_IRQ        { IRQ_PB11MP_UART2, NO_IRQ }
151 #define PB11MP_UART2_DMA        { 11, 10 }
152 #define PB11MP_UART3_IRQ        { IRQ_PB11MP_UART3, NO_IRQ }
153 #define PB11MP_UART3_DMA        { 0x86, 0x87 }
154 #define PB11MP_SSP_IRQ          { IRQ_PB11MP_SSP, NO_IRQ }
155 #define PB11MP_SSP_DMA          { 9, 8 }
156
157 /* FPGA Primecells */
158 AMBA_DEVICE(aaci,       "fpga:04",      AACI,           NULL);
159 AMBA_DEVICE(mmc0,       "fpga:05",      MMCI0,          &realview_mmc0_plat_data);
160 AMBA_DEVICE(kmi0,       "fpga:06",      KMI0,           NULL);
161 AMBA_DEVICE(kmi1,       "fpga:07",      KMI1,           NULL);
162 AMBA_DEVICE(uart3,      "fpga:09",      PB11MP_UART3,   NULL);
163
164 /* DevChip Primecells */
165 AMBA_DEVICE(smc,        "dev:00",       PB11MP_SMC,     NULL);
166 AMBA_DEVICE(sctl,       "dev:e0",       SCTL,           NULL);
167 AMBA_DEVICE(wdog,       "dev:e1",       PB11MP_WATCHDOG, NULL);
168 AMBA_DEVICE(gpio0,      "dev:e4",       PB11MP_GPIO0,   NULL);
169 AMBA_DEVICE(gpio1,      "dev:e5",       GPIO1,          NULL);
170 AMBA_DEVICE(gpio2,      "dev:e6",       GPIO2,          NULL);
171 AMBA_DEVICE(rtc,        "dev:e8",       PB11MP_RTC,     NULL);
172 AMBA_DEVICE(sci0,       "dev:f0",       SCI,            NULL);
173 AMBA_DEVICE(uart0,      "dev:f1",       PB11MP_UART0,   NULL);
174 AMBA_DEVICE(uart1,      "dev:f2",       PB11MP_UART1,   NULL);
175 AMBA_DEVICE(uart2,      "dev:f3",       PB11MP_UART2,   NULL);
176 AMBA_DEVICE(ssp0,       "dev:f4",       PB11MP_SSP,     NULL);
177
178 /* Primecells on the NEC ISSP chip */
179 AMBA_DEVICE(clcd,       "issp:20",      PB11MP_CLCD,    &clcd_plat_data);
180 AMBA_DEVICE(dmac,       "issp:30",      DMAC,           NULL);
181
182 static struct amba_device *amba_devs[] __initdata = {
183         &dmac_device,
184         &uart0_device,
185         &uart1_device,
186         &uart2_device,
187         &uart3_device,
188         &smc_device,
189         &clcd_device,
190         &sctl_device,
191         &wdog_device,
192         &gpio0_device,
193         &gpio1_device,
194         &gpio2_device,
195         &rtc_device,
196         &sci0_device,
197         &ssp0_device,
198         &aaci_device,
199         &mmc0_device,
200         &kmi0_device,
201         &kmi1_device,
202 };
203
204 /*
205  * RealView PB11MPCore platform devices
206  */
207 static struct resource realview_pb11mp_flash_resource[] = {
208         [0] = {
209                 .start          = REALVIEW_PB11MP_FLASH0_BASE,
210                 .end            = REALVIEW_PB11MP_FLASH0_BASE + REALVIEW_PB11MP_FLASH0_SIZE - 1,
211                 .flags          = IORESOURCE_MEM,
212         },
213         [1] = {
214                 .start          = REALVIEW_PB11MP_FLASH1_BASE,
215                 .end            = REALVIEW_PB11MP_FLASH1_BASE + REALVIEW_PB11MP_FLASH1_SIZE - 1,
216                 .flags          = IORESOURCE_MEM,
217         },
218 };
219
220 static struct resource realview_pb11mp_smsc911x_resources[] = {
221         [0] = {
222                 .start          = REALVIEW_PB11MP_ETH_BASE,
223                 .end            = REALVIEW_PB11MP_ETH_BASE + SZ_64K - 1,
224                 .flags          = IORESOURCE_MEM,
225         },
226         [1] = {
227                 .start          = IRQ_TC11MP_ETH,
228                 .end            = IRQ_TC11MP_ETH,
229                 .flags          = IORESOURCE_IRQ,
230         },
231 };
232
233 static struct platform_device realview_pb11mp_smsc911x_device = {
234         .name           = "smc911x",
235         .id             = 0,
236         .num_resources  = ARRAY_SIZE(realview_pb11mp_smsc911x_resources),
237         .resource       = realview_pb11mp_smsc911x_resources,
238 };
239
240 struct resource realview_pb11mp_cf_resources[] = {
241         [0] = {
242                 .start          = REALVIEW_PB11MP_CF_BASE,
243                 .end            = REALVIEW_PB11MP_CF_BASE + SZ_4K - 1,
244                 .flags          = IORESOURCE_MEM,
245         },
246         [1] = {
247                 .start          = REALVIEW_PB11MP_CF_MEM_BASE,
248                 .end            = REALVIEW_PB11MP_CF_MEM_BASE + SZ_4K - 1,
249                 .flags          = IORESOURCE_MEM,
250         },
251         [2] = {
252                 .start          = -1,           /* FIXME: Find correct irq */
253                 .end            = -1,
254                 .flags          = IORESOURCE_IRQ,
255         },
256 };
257
258 struct platform_device realview_pb11mp_cf_device = {
259         .name           = "compactflash",
260         .id             = 0,
261         .num_resources  = ARRAY_SIZE(realview_pb11mp_cf_resources),
262         .resource       = realview_pb11mp_cf_resources,
263 };
264
265 static void __init gic_init_irq(void)
266 {
267         unsigned int pldctrl;
268
269         /* new irq mode with no DCC */
270         writel(0x0000a05f, __io_address(REALVIEW_SYS_LOCK));
271         pldctrl = readl(__io_address(REALVIEW_SYS_BASE) + REALVIEW_PB11MP_SYS_PLD_CTRL1);
272         pldctrl |= 2 << 22;
273         writel(pldctrl, __io_address(REALVIEW_SYS_BASE) + REALVIEW_PB11MP_SYS_PLD_CTRL1);
274         writel(0x00000000, __io_address(REALVIEW_SYS_LOCK));
275
276         /* ARM11MPCore test chip GIC, primary */
277         gic_cpu_base_addr = __io_address(REALVIEW_TC11MP_GIC_CPU_BASE);
278         gic_dist_init(0, __io_address(REALVIEW_TC11MP_GIC_DIST_BASE), 29);
279         gic_cpu_init(0, gic_cpu_base_addr);
280
281         /* board GIC, secondary */
282         gic_dist_init(1, __io_address(REALVIEW_PB11MP_GIC_DIST_BASE), IRQ_PB11MP_GIC_START);
283         gic_cpu_init(1, __io_address(REALVIEW_PB11MP_GIC_CPU_BASE));
284         gic_cascade_irq(1, IRQ_TC11MP_PB_IRQ1);
285 }
286
287 static void __init realview_pb11mp_timer_init(void)
288 {
289         timer0_va_base = __io_address(REALVIEW_PB11MP_TIMER0_1_BASE);
290         timer1_va_base = __io_address(REALVIEW_PB11MP_TIMER0_1_BASE) + 0x20;
291         timer2_va_base = __io_address(REALVIEW_PB11MP_TIMER2_3_BASE);
292         timer3_va_base = __io_address(REALVIEW_PB11MP_TIMER2_3_BASE) + 0x20;
293
294 #ifdef CONFIG_LOCAL_TIMERS
295         twd_base_addr = __io_address(REALVIEW_TC11MP_TWD_BASE);
296         twd_size = REALVIEW_TC11MP_TWD_SIZE;
297 #endif
298         realview_timer_init(IRQ_TC11MP_TIMER0_1);
299 }
300
301 static struct sys_timer realview_pb11mp_timer = {
302         .init           = realview_pb11mp_timer_init,
303 };
304
305 static void __init realview_pb11mp_init(void)
306 {
307         int i;
308
309 #ifdef CONFIG_CACHE_L2X0
310         /* 1MB (128KB/way), 8-way associativity, evmon/parity/share enabled
311          * Bits:  .... ...0 0111 1001 0000 .... .... .... */
312         l2x0_init(__io_address(REALVIEW_TC11MP_L220_BASE), 0x00790000, 0xfe000fff);
313 #endif
314
315         realview_flash_register(realview_pb11mp_flash_resource,
316                                 ARRAY_SIZE(realview_pb11mp_flash_resource));
317         platform_device_register(&realview_pb11mp_smsc911x_device);
318         platform_device_register(&realview_i2c_device);
319         platform_device_register(&realview_pb11mp_cf_device);
320
321         for (i = 0; i < ARRAY_SIZE(amba_devs); i++) {
322                 struct amba_device *d = amba_devs[i];
323                 amba_device_register(d, &iomem_resource);
324         }
325
326 #ifdef CONFIG_LEDS
327         leds_event = realview_leds_event;
328 #endif
329 }
330
331 MACHINE_START(REALVIEW_PB11MP, "ARM-RealView PB11MPCore")
332         /* Maintainer: ARM Ltd/Deep Blue Solutions Ltd */
333         .phys_io        = REALVIEW_PB11MP_UART0_BASE,
334         .io_pg_offst    = (IO_ADDRESS(REALVIEW_PB11MP_UART0_BASE) >> 18) & 0xfffc,
335         .boot_params    = 0x00000100,
336         .map_io         = realview_pb11mp_map_io,
337         .init_irq       = gic_init_irq,
338         .timer          = &realview_pb11mp_timer,
339         .init_machine   = realview_pb11mp_init,
340 MACHINE_END