[ARM] versatile: add PL061 gpiolib support
[linux-2.6.git] / arch / arm / mach-realview / realview_eb.c
1 /*
2  *  linux/arch/arm/mach-realview/realview_eb.c
3  *
4  *  Copyright (C) 2004 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 #include <asm/localtimer.h>
36
37 #include <asm/mach/arch.h>
38 #include <asm/mach/map.h>
39 #include <asm/mach/mmc.h>
40 #include <asm/mach/time.h>
41
42 #include <mach/board-eb.h>
43 #include <mach/irqs.h>
44
45 #include "core.h"
46 #include "clock.h"
47
48 static struct map_desc realview_eb_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_EB_GIC_CPU_BASE),
56                 .pfn            = __phys_to_pfn(REALVIEW_EB_GIC_CPU_BASE),
57                 .length         = SZ_4K,
58                 .type           = MT_DEVICE,
59         }, {
60                 .virtual        = IO_ADDRESS(REALVIEW_EB_GIC_DIST_BASE),
61                 .pfn            = __phys_to_pfn(REALVIEW_EB_GIC_DIST_BASE),
62                 .length         = SZ_4K,
63                 .type           = MT_DEVICE,
64         }, {
65                 .virtual        = IO_ADDRESS(REALVIEW_SCTL_BASE),
66                 .pfn            = __phys_to_pfn(REALVIEW_SCTL_BASE),
67                 .length         = SZ_4K,
68                 .type           = MT_DEVICE,
69         }, {
70                 .virtual        = IO_ADDRESS(REALVIEW_EB_TIMER0_1_BASE),
71                 .pfn            = __phys_to_pfn(REALVIEW_EB_TIMER0_1_BASE),
72                 .length         = SZ_4K,
73                 .type           = MT_DEVICE,
74         }, {
75                 .virtual        = IO_ADDRESS(REALVIEW_EB_TIMER2_3_BASE),
76                 .pfn            = __phys_to_pfn(REALVIEW_EB_TIMER2_3_BASE),
77                 .length         = SZ_4K,
78                 .type           = MT_DEVICE,
79         },
80 #ifdef CONFIG_DEBUG_LL
81         {
82                 .virtual        = IO_ADDRESS(REALVIEW_EB_UART0_BASE),
83                 .pfn            = __phys_to_pfn(REALVIEW_EB_UART0_BASE),
84                 .length         = SZ_4K,
85                 .type           = MT_DEVICE,
86         }
87 #endif
88 };
89
90 static struct map_desc realview_eb11mp_io_desc[] __initdata = {
91         {
92                 .virtual        = IO_ADDRESS(REALVIEW_EB11MP_GIC_CPU_BASE),
93                 .pfn            = __phys_to_pfn(REALVIEW_EB11MP_GIC_CPU_BASE),
94                 .length         = SZ_4K,
95                 .type           = MT_DEVICE,
96         }, {
97                 .virtual        = IO_ADDRESS(REALVIEW_EB11MP_GIC_DIST_BASE),
98                 .pfn            = __phys_to_pfn(REALVIEW_EB11MP_GIC_DIST_BASE),
99                 .length         = SZ_4K,
100                 .type           = MT_DEVICE,
101         }, {
102                 .virtual        = IO_ADDRESS(REALVIEW_EB11MP_L220_BASE),
103                 .pfn            = __phys_to_pfn(REALVIEW_EB11MP_L220_BASE),
104                 .length         = SZ_8K,
105                 .type           = MT_DEVICE,
106         }
107 };
108
109 static void __init realview_eb_map_io(void)
110 {
111         iotable_init(realview_eb_io_desc, ARRAY_SIZE(realview_eb_io_desc));
112         if (core_tile_eb11mp() || core_tile_a9mp())
113                 iotable_init(realview_eb11mp_io_desc, ARRAY_SIZE(realview_eb11mp_io_desc));
114 }
115
116 /*
117  * RealView EB AMBA devices
118  */
119
120 /*
121  * These devices are connected via the core APB bridge
122  */
123 #define GPIO2_IRQ       { IRQ_EB_GPIO2, NO_IRQ }
124 #define GPIO2_DMA       { 0, 0 }
125 #define GPIO3_IRQ       { IRQ_EB_GPIO3, NO_IRQ }
126 #define GPIO3_DMA       { 0, 0 }
127
128 #define AACI_IRQ        { IRQ_EB_AACI, NO_IRQ }
129 #define AACI_DMA        { 0x80, 0x81 }
130 #define MMCI0_IRQ       { IRQ_EB_MMCI0A, IRQ_EB_MMCI0B }
131 #define MMCI0_DMA       { 0x84, 0 }
132 #define KMI0_IRQ        { IRQ_EB_KMI0, NO_IRQ }
133 #define KMI0_DMA        { 0, 0 }
134 #define KMI1_IRQ        { IRQ_EB_KMI1, NO_IRQ }
135 #define KMI1_DMA        { 0, 0 }
136
137 /*
138  * These devices are connected directly to the multi-layer AHB switch
139  */
140 #define EB_SMC_IRQ      { NO_IRQ, NO_IRQ }
141 #define EB_SMC_DMA      { 0, 0 }
142 #define MPMC_IRQ        { NO_IRQ, NO_IRQ }
143 #define MPMC_DMA        { 0, 0 }
144 #define EB_CLCD_IRQ     { IRQ_EB_CLCD, NO_IRQ }
145 #define EB_CLCD_DMA     { 0, 0 }
146 #define DMAC_IRQ        { IRQ_EB_DMA, NO_IRQ }
147 #define DMAC_DMA        { 0, 0 }
148
149 /*
150  * These devices are connected via the core APB bridge
151  */
152 #define SCTL_IRQ        { NO_IRQ, NO_IRQ }
153 #define SCTL_DMA        { 0, 0 }
154 #define EB_WATCHDOG_IRQ { IRQ_EB_WDOG, NO_IRQ }
155 #define EB_WATCHDOG_DMA { 0, 0 }
156 #define EB_GPIO0_IRQ    { IRQ_EB_GPIO0, NO_IRQ }
157 #define EB_GPIO0_DMA    { 0, 0 }
158 #define GPIO1_IRQ       { IRQ_EB_GPIO1, NO_IRQ }
159 #define GPIO1_DMA       { 0, 0 }
160 #define EB_RTC_IRQ      { IRQ_EB_RTC, NO_IRQ }
161 #define EB_RTC_DMA      { 0, 0 }
162
163 /*
164  * These devices are connected via the DMA APB bridge
165  */
166 #define SCI_IRQ         { IRQ_EB_SCI, NO_IRQ }
167 #define SCI_DMA         { 7, 6 }
168 #define EB_UART0_IRQ    { IRQ_EB_UART0, NO_IRQ }
169 #define EB_UART0_DMA    { 15, 14 }
170 #define EB_UART1_IRQ    { IRQ_EB_UART1, NO_IRQ }
171 #define EB_UART1_DMA    { 13, 12 }
172 #define EB_UART2_IRQ    { IRQ_EB_UART2, NO_IRQ }
173 #define EB_UART2_DMA    { 11, 10 }
174 #define EB_UART3_IRQ    { IRQ_EB_UART3, NO_IRQ }
175 #define EB_UART3_DMA    { 0x86, 0x87 }
176 #define EB_SSP_IRQ      { IRQ_EB_SSP, NO_IRQ }
177 #define EB_SSP_DMA      { 9, 8 }
178
179 /* FPGA Primecells */
180 AMBA_DEVICE(aaci,  "fpga:04", AACI,     NULL);
181 AMBA_DEVICE(mmc0,  "fpga:05", MMCI0,    &realview_mmc0_plat_data);
182 AMBA_DEVICE(kmi0,  "fpga:06", KMI0,     NULL);
183 AMBA_DEVICE(kmi1,  "fpga:07", KMI1,     NULL);
184 AMBA_DEVICE(uart3, "fpga:09", EB_UART3, NULL);
185
186 /* DevChip Primecells */
187 AMBA_DEVICE(smc,   "dev:00",  EB_SMC,   NULL);
188 AMBA_DEVICE(clcd,  "dev:20",  EB_CLCD,  &clcd_plat_data);
189 AMBA_DEVICE(dmac,  "dev:30",  DMAC,     NULL);
190 AMBA_DEVICE(sctl,  "dev:e0",  SCTL,     NULL);
191 AMBA_DEVICE(wdog,  "dev:e1",  EB_WATCHDOG, NULL);
192 AMBA_DEVICE(gpio0, "dev:e4",  EB_GPIO0, NULL);
193 AMBA_DEVICE(gpio1, "dev:e5",  GPIO1,    NULL);
194 AMBA_DEVICE(gpio2, "dev:e6",  GPIO2,    NULL);
195 AMBA_DEVICE(rtc,   "dev:e8",  EB_RTC,   NULL);
196 AMBA_DEVICE(sci0,  "dev:f0",  SCI,      NULL);
197 AMBA_DEVICE(uart0, "dev:f1",  EB_UART0, NULL);
198 AMBA_DEVICE(uart1, "dev:f2",  EB_UART1, NULL);
199 AMBA_DEVICE(uart2, "dev:f3",  EB_UART2, NULL);
200 AMBA_DEVICE(ssp0,  "dev:f4",  EB_SSP,   NULL);
201
202 static struct amba_device *amba_devs[] __initdata = {
203         &dmac_device,
204         &uart0_device,
205         &uart1_device,
206         &uart2_device,
207         &uart3_device,
208         &smc_device,
209         &clcd_device,
210         &sctl_device,
211         &wdog_device,
212         &gpio0_device,
213         &gpio1_device,
214         &gpio2_device,
215         &rtc_device,
216         &sci0_device,
217         &ssp0_device,
218         &aaci_device,
219         &mmc0_device,
220         &kmi0_device,
221         &kmi1_device,
222 };
223
224 /*
225  * RealView EB platform devices
226  */
227 static struct resource realview_eb_flash_resource = {
228         .start                  = REALVIEW_EB_FLASH_BASE,
229         .end                    = REALVIEW_EB_FLASH_BASE + REALVIEW_EB_FLASH_SIZE - 1,
230         .flags                  = IORESOURCE_MEM,
231 };
232
233 static struct resource realview_eb_eth_resources[] = {
234         [0] = {
235                 .start          = REALVIEW_EB_ETH_BASE,
236                 .end            = REALVIEW_EB_ETH_BASE + SZ_64K - 1,
237                 .flags          = IORESOURCE_MEM,
238         },
239         [1] = {
240                 .start          = IRQ_EB_ETH,
241                 .end            = IRQ_EB_ETH,
242                 .flags          = IORESOURCE_IRQ,
243         },
244 };
245
246 /*
247  * Detect and register the correct Ethernet device. RealView/EB rev D
248  * platforms use the newer SMSC LAN9118 Ethernet chip
249  */
250 static int eth_device_register(void)
251 {
252         void __iomem *eth_addr = ioremap(REALVIEW_EB_ETH_BASE, SZ_4K);
253         const char *name = NULL;
254         u32 idrev;
255
256         if (!eth_addr)
257                 return -ENOMEM;
258
259         idrev = readl(eth_addr + 0x50);
260         if ((idrev & 0xFFFF0000) != 0x01180000)
261                 /* SMSC LAN9118 not present, use LAN91C111 instead */
262                 name = "smc91x";
263
264         iounmap(eth_addr);
265         return realview_eth_register(name, realview_eb_eth_resources);
266 }
267
268 static struct resource realview_eb_isp1761_resources[] = {
269         [0] = {
270                 .start          = REALVIEW_EB_USB_BASE,
271                 .end            = REALVIEW_EB_USB_BASE + SZ_128K - 1,
272                 .flags          = IORESOURCE_MEM,
273         },
274         [1] = {
275                 .start          = IRQ_EB_USB,
276                 .end            = IRQ_EB_USB,
277                 .flags          = IORESOURCE_IRQ,
278         },
279 };
280
281 static void __init gic_init_irq(void)
282 {
283         if (core_tile_eb11mp() || core_tile_a9mp()) {
284                 unsigned int pldctrl;
285
286                 /* new irq mode */
287                 writel(0x0000a05f, __io_address(REALVIEW_SYS_LOCK));
288                 pldctrl = readl(__io_address(REALVIEW_SYS_BASE) + REALVIEW_EB11MP_SYS_PLD_CTRL1);
289                 pldctrl |= 0x00800000;
290                 writel(pldctrl, __io_address(REALVIEW_SYS_BASE) + REALVIEW_EB11MP_SYS_PLD_CTRL1);
291                 writel(0x00000000, __io_address(REALVIEW_SYS_LOCK));
292
293                 /* core tile GIC, primary */
294                 gic_cpu_base_addr = __io_address(REALVIEW_EB11MP_GIC_CPU_BASE);
295                 gic_dist_init(0, __io_address(REALVIEW_EB11MP_GIC_DIST_BASE), 29);
296                 gic_cpu_init(0, gic_cpu_base_addr);
297
298 #ifndef CONFIG_REALVIEW_EB_ARM11MP_REVB
299                 /* board GIC, secondary */
300                 gic_dist_init(1, __io_address(REALVIEW_EB_GIC_DIST_BASE), 64);
301                 gic_cpu_init(1, __io_address(REALVIEW_EB_GIC_CPU_BASE));
302                 gic_cascade_irq(1, IRQ_EB11MP_EB_IRQ1);
303 #endif
304         } else {
305                 /* board GIC, primary */
306                 gic_cpu_base_addr = __io_address(REALVIEW_EB_GIC_CPU_BASE);
307                 gic_dist_init(0, __io_address(REALVIEW_EB_GIC_DIST_BASE), 29);
308                 gic_cpu_init(0, gic_cpu_base_addr);
309         }
310 }
311
312 /*
313  * Fix up the IRQ numbers for the RealView EB/ARM11MPCore tile
314  */
315 static void realview_eb11mp_fixup(void)
316 {
317         /* AMBA devices */
318         dmac_device.irq[0]      = IRQ_EB11MP_DMA;
319         uart0_device.irq[0]     = IRQ_EB11MP_UART0;
320         uart1_device.irq[0]     = IRQ_EB11MP_UART1;
321         uart2_device.irq[0]     = IRQ_EB11MP_UART2;
322         uart3_device.irq[0]     = IRQ_EB11MP_UART3;
323         clcd_device.irq[0]      = IRQ_EB11MP_CLCD;
324         wdog_device.irq[0]      = IRQ_EB11MP_WDOG;
325         gpio0_device.irq[0]     = IRQ_EB11MP_GPIO0;
326         gpio1_device.irq[0]     = IRQ_EB11MP_GPIO1;
327         gpio2_device.irq[0]     = IRQ_EB11MP_GPIO2;
328         rtc_device.irq[0]       = IRQ_EB11MP_RTC;
329         sci0_device.irq[0]      = IRQ_EB11MP_SCI;
330         ssp0_device.irq[0]      = IRQ_EB11MP_SSP;
331         aaci_device.irq[0]      = IRQ_EB11MP_AACI;
332         mmc0_device.irq[0]      = IRQ_EB11MP_MMCI0A;
333         mmc0_device.irq[1]      = IRQ_EB11MP_MMCI0B;
334         kmi0_device.irq[0]      = IRQ_EB11MP_KMI0;
335         kmi1_device.irq[0]      = IRQ_EB11MP_KMI1;
336
337         /* platform devices */
338         realview_eb_eth_resources[1].start      = IRQ_EB11MP_ETH;
339         realview_eb_eth_resources[1].end        = IRQ_EB11MP_ETH;
340         realview_eb_isp1761_resources[1].start  = IRQ_EB11MP_USB;
341         realview_eb_isp1761_resources[1].end    = IRQ_EB11MP_USB;
342 }
343
344 static void __init realview_eb_timer_init(void)
345 {
346         unsigned int timer_irq;
347
348         timer0_va_base = __io_address(REALVIEW_EB_TIMER0_1_BASE);
349         timer1_va_base = __io_address(REALVIEW_EB_TIMER0_1_BASE) + 0x20;
350         timer2_va_base = __io_address(REALVIEW_EB_TIMER2_3_BASE);
351         timer3_va_base = __io_address(REALVIEW_EB_TIMER2_3_BASE) + 0x20;
352
353         if (core_tile_eb11mp() || core_tile_a9mp()) {
354 #ifdef CONFIG_LOCAL_TIMERS
355                 twd_base = __io_address(REALVIEW_EB11MP_TWD_BASE);
356 #endif
357                 timer_irq = IRQ_EB11MP_TIMER0_1;
358         } else
359                 timer_irq = IRQ_EB_TIMER0_1;
360
361         realview_timer_init(timer_irq);
362 }
363
364 static struct sys_timer realview_eb_timer = {
365         .init           = realview_eb_timer_init,
366 };
367
368 static void __init realview_eb_init(void)
369 {
370         int i;
371
372         if (core_tile_eb11mp() || core_tile_a9mp()) {
373                 realview_eb11mp_fixup();
374
375 #ifdef CONFIG_CACHE_L2X0
376                 /* 1MB (128KB/way), 8-way associativity, evmon/parity/share enabled
377                  * Bits:  .... ...0 0111 1001 0000 .... .... .... */
378                 l2x0_init(__io_address(REALVIEW_EB11MP_L220_BASE), 0x00790000, 0xfe000fff);
379 #endif
380         }
381
382         realview_flash_register(&realview_eb_flash_resource, 1);
383         platform_device_register(&realview_i2c_device);
384         eth_device_register();
385         realview_usb_register(realview_eb_isp1761_resources);
386
387         for (i = 0; i < ARRAY_SIZE(amba_devs); i++) {
388                 struct amba_device *d = amba_devs[i];
389                 amba_device_register(d, &iomem_resource);
390         }
391
392 #ifdef CONFIG_LEDS
393         leds_event = realview_leds_event;
394 #endif
395 }
396
397 MACHINE_START(REALVIEW_EB, "ARM-RealView EB")
398         /* Maintainer: ARM Ltd/Deep Blue Solutions Ltd */
399         .phys_io        = REALVIEW_EB_UART0_BASE,
400         .io_pg_offst    = (IO_ADDRESS(REALVIEW_EB_UART0_BASE) >> 18) & 0xfffc,
401         .boot_params    = PHYS_OFFSET + 0x00000100,
402         .map_io         = realview_eb_map_io,
403         .init_irq       = gic_init_irq,
404         .timer          = &realview_eb_timer,
405         .init_machine   = realview_eb_init,
406 MACHINE_END