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1b504bbe CT |
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> | |
eb7fffa3 | 25 | #include <linux/amba/pl061.h> |
6ef297f8 | 26 | #include <linux/amba/mmci.h> |
1b504bbe CT |
27 | #include <linux/io.h> |
28 | ||
29 | #include <asm/irq.h> | |
30 | #include <asm/leds.h> | |
31 | #include <asm/mach-types.h> | |
f417cbad | 32 | #include <asm/pmu.h> |
c3c21740 | 33 | #include <asm/smp_twd.h> |
1b504bbe CT |
34 | #include <asm/hardware/gic.h> |
35 | #include <asm/hardware/cache-l2x0.h> | |
36 | ||
37 | #include <asm/mach/arch.h> | |
38 | #include <asm/mach/map.h> | |
1b504bbe CT |
39 | #include <asm/mach/time.h> |
40 | ||
41 | #include <mach/hardware.h> | |
42 | #include <mach/board-pbx.h> | |
43 | #include <mach/irqs.h> | |
44 | ||
45 | #include "core.h" | |
46 | ||
47 | static struct map_desc realview_pbx_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_PBX_GIC_CPU_BASE), | |
55 | .pfn = __phys_to_pfn(REALVIEW_PBX_GIC_CPU_BASE), | |
56 | .length = SZ_4K, | |
57 | .type = MT_DEVICE, | |
58 | }, { | |
59 | .virtual = IO_ADDRESS(REALVIEW_PBX_GIC_DIST_BASE), | |
60 | .pfn = __phys_to_pfn(REALVIEW_PBX_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_PBX_TIMER0_1_BASE), | |
70 | .pfn = __phys_to_pfn(REALVIEW_PBX_TIMER0_1_BASE), | |
71 | .length = SZ_4K, | |
72 | .type = MT_DEVICE, | |
73 | }, { | |
74 | .virtual = IO_ADDRESS(REALVIEW_PBX_TIMER2_3_BASE), | |
75 | .pfn = __phys_to_pfn(REALVIEW_PBX_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_PBX_PCI_BASE), | |
83 | .length = REALVIEW_PBX_PCI_BASE_SIZE, | |
84 | .type = MT_DEVICE, | |
85 | }, | |
86 | #endif | |
87 | #ifdef CONFIG_DEBUG_LL | |
88 | { | |
89 | .virtual = IO_ADDRESS(REALVIEW_PBX_UART0_BASE), | |
90 | .pfn = __phys_to_pfn(REALVIEW_PBX_UART0_BASE), | |
91 | .length = SZ_4K, | |
92 | .type = MT_DEVICE, | |
93 | }, | |
94 | #endif | |
95 | }; | |
96 | ||
97 | static struct map_desc realview_local_io_desc[] __initdata = { | |
98 | { | |
99 | .virtual = IO_ADDRESS(REALVIEW_PBX_TILE_GIC_CPU_BASE), | |
100 | .pfn = __phys_to_pfn(REALVIEW_PBX_TILE_GIC_CPU_BASE), | |
101 | .length = SZ_4K, | |
102 | .type = MT_DEVICE, | |
103 | }, { | |
104 | .virtual = IO_ADDRESS(REALVIEW_PBX_TILE_GIC_DIST_BASE), | |
105 | .pfn = __phys_to_pfn(REALVIEW_PBX_TILE_GIC_DIST_BASE), | |
106 | .length = SZ_4K, | |
107 | .type = MT_DEVICE, | |
108 | }, { | |
109 | .virtual = IO_ADDRESS(REALVIEW_PBX_TILE_L220_BASE), | |
110 | .pfn = __phys_to_pfn(REALVIEW_PBX_TILE_L220_BASE), | |
111 | .length = SZ_8K, | |
112 | .type = MT_DEVICE, | |
113 | } | |
114 | }; | |
115 | ||
116 | static void __init realview_pbx_map_io(void) | |
117 | { | |
118 | iotable_init(realview_pbx_io_desc, ARRAY_SIZE(realview_pbx_io_desc)); | |
119 | if (core_tile_pbx11mp() || core_tile_pbxa9mp()) | |
120 | iotable_init(realview_local_io_desc, ARRAY_SIZE(realview_local_io_desc)); | |
121 | } | |
122 | ||
eb7fffa3 RK |
123 | static struct pl061_platform_data gpio0_plat_data = { |
124 | .gpio_base = 0, | |
125 | .irq_base = -1, | |
126 | }; | |
127 | ||
128 | static struct pl061_platform_data gpio1_plat_data = { | |
129 | .gpio_base = 8, | |
130 | .irq_base = -1, | |
131 | }; | |
132 | ||
133 | static struct pl061_platform_data gpio2_plat_data = { | |
134 | .gpio_base = 16, | |
135 | .irq_base = -1, | |
136 | }; | |
137 | ||
1b504bbe CT |
138 | /* |
139 | * RealView PBXCore AMBA devices | |
140 | */ | |
141 | ||
142 | #define GPIO2_IRQ { IRQ_PBX_GPIO2, NO_IRQ } | |
143 | #define GPIO2_DMA { 0, 0 } | |
144 | #define GPIO3_IRQ { IRQ_PBX_GPIO3, NO_IRQ } | |
145 | #define GPIO3_DMA { 0, 0 } | |
146 | #define AACI_IRQ { IRQ_PBX_AACI, NO_IRQ } | |
147 | #define AACI_DMA { 0x80, 0x81 } | |
148 | #define MMCI0_IRQ { IRQ_PBX_MMCI0A, IRQ_PBX_MMCI0B } | |
149 | #define MMCI0_DMA { 0x84, 0 } | |
150 | #define KMI0_IRQ { IRQ_PBX_KMI0, NO_IRQ } | |
151 | #define KMI0_DMA { 0, 0 } | |
152 | #define KMI1_IRQ { IRQ_PBX_KMI1, NO_IRQ } | |
153 | #define KMI1_DMA { 0, 0 } | |
154 | #define PBX_SMC_IRQ { NO_IRQ, NO_IRQ } | |
155 | #define PBX_SMC_DMA { 0, 0 } | |
156 | #define MPMC_IRQ { NO_IRQ, NO_IRQ } | |
157 | #define MPMC_DMA { 0, 0 } | |
158 | #define PBX_CLCD_IRQ { IRQ_PBX_CLCD, NO_IRQ } | |
159 | #define PBX_CLCD_DMA { 0, 0 } | |
160 | #define DMAC_IRQ { IRQ_PBX_DMAC, NO_IRQ } | |
161 | #define DMAC_DMA { 0, 0 } | |
162 | #define SCTL_IRQ { NO_IRQ, NO_IRQ } | |
163 | #define SCTL_DMA { 0, 0 } | |
164 | #define PBX_WATCHDOG_IRQ { IRQ_PBX_WATCHDOG, NO_IRQ } | |
165 | #define PBX_WATCHDOG_DMA { 0, 0 } | |
166 | #define PBX_GPIO0_IRQ { IRQ_PBX_GPIO0, NO_IRQ } | |
167 | #define PBX_GPIO0_DMA { 0, 0 } | |
168 | #define GPIO1_IRQ { IRQ_PBX_GPIO1, NO_IRQ } | |
169 | #define GPIO1_DMA { 0, 0 } | |
170 | #define PBX_RTC_IRQ { IRQ_PBX_RTC, NO_IRQ } | |
171 | #define PBX_RTC_DMA { 0, 0 } | |
172 | #define SCI_IRQ { IRQ_PBX_SCI, NO_IRQ } | |
173 | #define SCI_DMA { 7, 6 } | |
174 | #define PBX_UART0_IRQ { IRQ_PBX_UART0, NO_IRQ } | |
175 | #define PBX_UART0_DMA { 15, 14 } | |
176 | #define PBX_UART1_IRQ { IRQ_PBX_UART1, NO_IRQ } | |
177 | #define PBX_UART1_DMA { 13, 12 } | |
178 | #define PBX_UART2_IRQ { IRQ_PBX_UART2, NO_IRQ } | |
179 | #define PBX_UART2_DMA { 11, 10 } | |
180 | #define PBX_UART3_IRQ { IRQ_PBX_UART3, NO_IRQ } | |
181 | #define PBX_UART3_DMA { 0x86, 0x87 } | |
182 | #define PBX_SSP_IRQ { IRQ_PBX_SSP, NO_IRQ } | |
183 | #define PBX_SSP_DMA { 9, 8 } | |
184 | ||
185 | /* FPGA Primecells */ | |
4321532c LW |
186 | AMBA_DEVICE(aaci, "fpga:aaci", AACI, NULL); |
187 | AMBA_DEVICE(mmc0, "fpga:mmc0", MMCI0, &realview_mmc0_plat_data); | |
188 | AMBA_DEVICE(kmi0, "fpga:kmi0", KMI0, NULL); | |
189 | AMBA_DEVICE(kmi1, "fpga:kmi1", KMI1, NULL); | |
190 | AMBA_DEVICE(uart3, "fpga:uart3", PBX_UART3, NULL); | |
1b504bbe CT |
191 | |
192 | /* DevChip Primecells */ | |
4321532c LW |
193 | AMBA_DEVICE(smc, "dev:smc", PBX_SMC, NULL); |
194 | AMBA_DEVICE(sctl, "dev:sctl", SCTL, NULL); | |
195 | AMBA_DEVICE(wdog, "dev:wdog", PBX_WATCHDOG, NULL); | |
196 | AMBA_DEVICE(gpio0, "dev:gpio0", PBX_GPIO0, &gpio0_plat_data); | |
197 | AMBA_DEVICE(gpio1, "dev:gpio1", GPIO1, &gpio1_plat_data); | |
198 | AMBA_DEVICE(gpio2, "dev:gpio2", GPIO2, &gpio2_plat_data); | |
199 | AMBA_DEVICE(rtc, "dev:rtc", PBX_RTC, NULL); | |
200 | AMBA_DEVICE(sci0, "dev:sci0", SCI, NULL); | |
201 | AMBA_DEVICE(uart0, "dev:uart0", PBX_UART0, NULL); | |
202 | AMBA_DEVICE(uart1, "dev:uart1", PBX_UART1, NULL); | |
203 | AMBA_DEVICE(uart2, "dev:uart2", PBX_UART2, NULL); | |
204 | AMBA_DEVICE(ssp0, "dev:ssp0", PBX_SSP, NULL); | |
1b504bbe CT |
205 | |
206 | /* Primecells on the NEC ISSP chip */ | |
4321532c LW |
207 | AMBA_DEVICE(clcd, "issp:clcd", PBX_CLCD, &clcd_plat_data); |
208 | AMBA_DEVICE(dmac, "issp:dmac", DMAC, NULL); | |
1b504bbe CT |
209 | |
210 | static struct amba_device *amba_devs[] __initdata = { | |
211 | &dmac_device, | |
212 | &uart0_device, | |
213 | &uart1_device, | |
214 | &uart2_device, | |
215 | &uart3_device, | |
216 | &smc_device, | |
217 | &clcd_device, | |
218 | &sctl_device, | |
219 | &wdog_device, | |
220 | &gpio0_device, | |
221 | &gpio1_device, | |
222 | &gpio2_device, | |
223 | &rtc_device, | |
224 | &sci0_device, | |
225 | &ssp0_device, | |
226 | &aaci_device, | |
227 | &mmc0_device, | |
228 | &kmi0_device, | |
229 | &kmi1_device, | |
230 | }; | |
231 | ||
232 | /* | |
233 | * RealView PB-X platform devices | |
234 | */ | |
235 | static struct resource realview_pbx_flash_resources[] = { | |
236 | [0] = { | |
237 | .start = REALVIEW_PBX_FLASH0_BASE, | |
238 | .end = REALVIEW_PBX_FLASH0_BASE + REALVIEW_PBX_FLASH0_SIZE - 1, | |
239 | .flags = IORESOURCE_MEM, | |
240 | }, | |
241 | [1] = { | |
242 | .start = REALVIEW_PBX_FLASH1_BASE, | |
243 | .end = REALVIEW_PBX_FLASH1_BASE + REALVIEW_PBX_FLASH1_SIZE - 1, | |
244 | .flags = IORESOURCE_MEM, | |
245 | }, | |
246 | }; | |
247 | ||
248 | static struct resource realview_pbx_smsc911x_resources[] = { | |
249 | [0] = { | |
250 | .start = REALVIEW_PBX_ETH_BASE, | |
251 | .end = REALVIEW_PBX_ETH_BASE + SZ_64K - 1, | |
252 | .flags = IORESOURCE_MEM, | |
253 | }, | |
254 | [1] = { | |
255 | .start = IRQ_PBX_ETH, | |
256 | .end = IRQ_PBX_ETH, | |
257 | .flags = IORESOURCE_IRQ, | |
258 | }, | |
259 | }; | |
260 | ||
261 | static struct resource realview_pbx_isp1761_resources[] = { | |
262 | [0] = { | |
263 | .start = REALVIEW_PBX_USB_BASE, | |
264 | .end = REALVIEW_PBX_USB_BASE + SZ_128K - 1, | |
265 | .flags = IORESOURCE_MEM, | |
266 | }, | |
267 | [1] = { | |
268 | .start = IRQ_PBX_USB, | |
269 | .end = IRQ_PBX_USB, | |
270 | .flags = IORESOURCE_IRQ, | |
271 | }, | |
272 | }; | |
273 | ||
f417cbad WD |
274 | static struct resource pmu_resources[] = { |
275 | [0] = { | |
276 | .start = IRQ_PBX_PMU_CPU0, | |
277 | .end = IRQ_PBX_PMU_CPU0, | |
278 | .flags = IORESOURCE_IRQ, | |
279 | }, | |
280 | [1] = { | |
281 | .start = IRQ_PBX_PMU_CPU1, | |
282 | .end = IRQ_PBX_PMU_CPU1, | |
283 | .flags = IORESOURCE_IRQ, | |
284 | }, | |
285 | [2] = { | |
286 | .start = IRQ_PBX_PMU_CPU2, | |
287 | .end = IRQ_PBX_PMU_CPU2, | |
288 | .flags = IORESOURCE_IRQ, | |
289 | }, | |
290 | [3] = { | |
291 | .start = IRQ_PBX_PMU_CPU3, | |
292 | .end = IRQ_PBX_PMU_CPU3, | |
293 | .flags = IORESOURCE_IRQ, | |
294 | }, | |
295 | }; | |
296 | ||
297 | static struct platform_device pmu_device = { | |
298 | .name = "arm-pmu", | |
299 | .id = ARM_PMU_DEVICE_CPU, | |
300 | .num_resources = ARRAY_SIZE(pmu_resources), | |
301 | .resource = pmu_resources, | |
302 | }; | |
303 | ||
1b504bbe CT |
304 | static void __init gic_init_irq(void) |
305 | { | |
306 | /* ARM PBX on-board GIC */ | |
307 | if (core_tile_pbx11mp() || core_tile_pbxa9mp()) { | |
308 | gic_cpu_base_addr = __io_address(REALVIEW_PBX_TILE_GIC_CPU_BASE); | |
309 | gic_dist_init(0, __io_address(REALVIEW_PBX_TILE_GIC_DIST_BASE), | |
310 | 29); | |
311 | gic_cpu_init(0, __io_address(REALVIEW_PBX_TILE_GIC_CPU_BASE)); | |
312 | } else { | |
313 | gic_cpu_base_addr = __io_address(REALVIEW_PBX_GIC_CPU_BASE); | |
314 | gic_dist_init(0, __io_address(REALVIEW_PBX_GIC_DIST_BASE), | |
315 | IRQ_PBX_GIC_START); | |
316 | gic_cpu_init(0, __io_address(REALVIEW_PBX_GIC_CPU_BASE)); | |
317 | } | |
318 | } | |
319 | ||
320 | static void __init realview_pbx_timer_init(void) | |
321 | { | |
322 | timer0_va_base = __io_address(REALVIEW_PBX_TIMER0_1_BASE); | |
323 | timer1_va_base = __io_address(REALVIEW_PBX_TIMER0_1_BASE) + 0x20; | |
324 | timer2_va_base = __io_address(REALVIEW_PBX_TIMER2_3_BASE); | |
325 | timer3_va_base = __io_address(REALVIEW_PBX_TIMER2_3_BASE) + 0x20; | |
326 | ||
327 | #ifdef CONFIG_LOCAL_TIMERS | |
328 | if (core_tile_pbx11mp() || core_tile_pbxa9mp()) | |
329 | twd_base = __io_address(REALVIEW_PBX_TILE_TWD_BASE); | |
330 | #endif | |
331 | realview_timer_init(IRQ_PBX_TIMER0_1); | |
332 | } | |
333 | ||
334 | static struct sys_timer realview_pbx_timer = { | |
335 | .init = realview_pbx_timer_init, | |
336 | }; | |
337 | ||
c97c5aa8 CM |
338 | static void realview_pbx_fixup(struct machine_desc *mdesc, struct tag *tags, |
339 | char **from, struct meminfo *meminfo) | |
340 | { | |
341 | #ifdef CONFIG_SPARSEMEM | |
342 | /* | |
343 | * Memory configuration with SPARSEMEM enabled on RealView PBX (see | |
344 | * asm/mach/memory.h for more information). | |
345 | */ | |
346 | meminfo->bank[0].start = 0; | |
347 | meminfo->bank[0].size = SZ_256M; | |
348 | meminfo->bank[1].start = 0x20000000; | |
349 | meminfo->bank[1].size = SZ_512M; | |
350 | meminfo->bank[2].start = 0x80000000; | |
351 | meminfo->bank[2].size = SZ_256M; | |
352 | meminfo->nr_banks = 3; | |
353 | #else | |
354 | realview_fixup(mdesc, tags, from, meminfo); | |
355 | #endif | |
356 | } | |
357 | ||
4c9f8be7 CT |
358 | static void realview_pbx_reset(char mode) |
359 | { | |
360 | void __iomem *reset_ctrl = __io_address(REALVIEW_SYS_RESETCTL); | |
361 | void __iomem *lock_ctrl = __io_address(REALVIEW_SYS_LOCK); | |
362 | ||
363 | /* | |
364 | * To reset, we hit the on-board reset register | |
365 | * in the system FPGA | |
366 | */ | |
367 | __raw_writel(REALVIEW_SYS_LOCK_VAL, lock_ctrl); | |
df2e615a CT |
368 | __raw_writel(0x00F0, reset_ctrl); |
369 | __raw_writel(0x00F4, reset_ctrl); | |
4c9f8be7 CT |
370 | } |
371 | ||
1b504bbe CT |
372 | static void __init realview_pbx_init(void) |
373 | { | |
374 | int i; | |
375 | ||
376 | #ifdef CONFIG_CACHE_L2X0 | |
377 | if (core_tile_pbxa9mp()) { | |
378 | void __iomem *l2x0_base = | |
379 | __io_address(REALVIEW_PBX_TILE_L220_BASE); | |
380 | ||
381 | /* set RAM latencies to 1 cycle for eASIC */ | |
382 | writel(0, l2x0_base + L2X0_TAG_LATENCY_CTRL); | |
383 | writel(0, l2x0_base + L2X0_DATA_LATENCY_CTRL); | |
384 | ||
385 | /* 16KB way size, 8-way associativity, parity disabled | |
386 | * Bits: .. 0 0 0 0 1 00 1 0 1 001 0 000 0 .... .... .... */ | |
387 | l2x0_init(l2x0_base, 0x02520000, 0xc0000fff); | |
f417cbad | 388 | platform_device_register(&pmu_device); |
1b504bbe CT |
389 | } |
390 | #endif | |
391 | ||
392 | realview_flash_register(realview_pbx_flash_resources, | |
393 | ARRAY_SIZE(realview_pbx_flash_resources)); | |
394 | realview_eth_register(NULL, realview_pbx_smsc911x_resources); | |
395 | platform_device_register(&realview_i2c_device); | |
396 | platform_device_register(&realview_cf_device); | |
397 | realview_usb_register(realview_pbx_isp1761_resources); | |
398 | ||
399 | for (i = 0; i < ARRAY_SIZE(amba_devs); i++) { | |
400 | struct amba_device *d = amba_devs[i]; | |
401 | amba_device_register(d, &iomem_resource); | |
402 | } | |
403 | ||
404 | #ifdef CONFIG_LEDS | |
405 | leds_event = realview_leds_event; | |
406 | #endif | |
4c9f8be7 | 407 | realview_reset = realview_pbx_reset; |
1b504bbe CT |
408 | } |
409 | ||
410 | MACHINE_START(REALVIEW_PBX, "ARM-RealView PBX") | |
411 | /* Maintainer: ARM Ltd/Deep Blue Solutions Ltd */ | |
412 | .phys_io = REALVIEW_PBX_UART0_BASE, | |
413 | .io_pg_offst = (IO_ADDRESS(REALVIEW_PBX_UART0_BASE) >> 18) & 0xfffc, | |
414 | .boot_params = PHYS_OFFSET + 0x00000100, | |
c97c5aa8 | 415 | .fixup = realview_pbx_fixup, |
1b504bbe CT |
416 | .map_io = realview_pbx_map_io, |
417 | .init_irq = gic_init_irq, | |
418 | .timer = &realview_pbx_timer, | |
419 | .init_machine = realview_pbx_init, | |
420 | MACHINE_END |