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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/amba/mmci.h> |
27 | #include <linux/amba/pl022.h> |
28 | #include <linux/io.h> |
29 | |
30 | #include <asm/irq.h> |
31 | #include <asm/leds.h> |
32 | #include <asm/mach-types.h> |
33 | #include <asm/pmu.h> |
34 | #include <asm/smp_twd.h> |
35 | #include <asm/pgtable.h> |
36 | #include <asm/hardware/gic.h> |
37 | #include <asm/hardware/cache-l2x0.h> |
38 | |
39 | #include <asm/mach/arch.h> |
40 | #include <asm/mach/map.h> |
41 | #include <asm/mach/time.h> |
42 | |
43 | #include <mach/hardware.h> |
44 | #include <mach/board-pbx.h> |
45 | #include <mach/irqs.h> |
46 | |
47 | #include "core.h" |
48 | |
49 | static struct map_desc realview_pbx_io_desc[] __initdata = { |
50 | { |
51 | .virtual = IO_ADDRESS(REALVIEW_SYS_BASE), |
52 | .pfn = __phys_to_pfn(REALVIEW_SYS_BASE), |
53 | .length = SZ_4K, |
54 | .type = MT_DEVICE, |
55 | }, { |
56 | .virtual = IO_ADDRESS(REALVIEW_PBX_GIC_CPU_BASE), |
57 | .pfn = __phys_to_pfn(REALVIEW_PBX_GIC_CPU_BASE), |
58 | .length = SZ_4K, |
59 | .type = MT_DEVICE, |
60 | }, { |
61 | .virtual = IO_ADDRESS(REALVIEW_PBX_GIC_DIST_BASE), |
62 | .pfn = __phys_to_pfn(REALVIEW_PBX_GIC_DIST_BASE), |
63 | .length = SZ_4K, |
64 | .type = MT_DEVICE, |
65 | }, { |
66 | .virtual = IO_ADDRESS(REALVIEW_SCTL_BASE), |
67 | .pfn = __phys_to_pfn(REALVIEW_SCTL_BASE), |
68 | .length = SZ_4K, |
69 | .type = MT_DEVICE, |
70 | }, { |
71 | .virtual = IO_ADDRESS(REALVIEW_PBX_TIMER0_1_BASE), |
72 | .pfn = __phys_to_pfn(REALVIEW_PBX_TIMER0_1_BASE), |
73 | .length = SZ_4K, |
74 | .type = MT_DEVICE, |
75 | }, { |
76 | .virtual = IO_ADDRESS(REALVIEW_PBX_TIMER2_3_BASE), |
77 | .pfn = __phys_to_pfn(REALVIEW_PBX_TIMER2_3_BASE), |
78 | .length = SZ_4K, |
79 | .type = MT_DEVICE, |
80 | }, |
81 | #ifdef CONFIG_PCI |
82 | { |
83 | .virtual = PCIX_UNIT_BASE, |
84 | .pfn = __phys_to_pfn(REALVIEW_PBX_PCI_BASE), |
85 | .length = REALVIEW_PBX_PCI_BASE_SIZE, |
86 | .type = MT_DEVICE, |
87 | }, |
88 | #endif |
89 | #ifdef CONFIG_DEBUG_LL |
90 | { |
91 | .virtual = IO_ADDRESS(REALVIEW_PBX_UART0_BASE), |
92 | .pfn = __phys_to_pfn(REALVIEW_PBX_UART0_BASE), |
93 | .length = SZ_4K, |
94 | .type = MT_DEVICE, |
95 | }, |
96 | #endif |
97 | }; |
98 | |
99 | static struct map_desc realview_local_io_desc[] __initdata = { |
100 | { |
101 | .virtual = IO_ADDRESS(REALVIEW_PBX_TILE_GIC_CPU_BASE), |
102 | .pfn = __phys_to_pfn(REALVIEW_PBX_TILE_GIC_CPU_BASE), |
103 | .length = SZ_4K, |
104 | .type = MT_DEVICE, |
105 | }, { |
106 | .virtual = IO_ADDRESS(REALVIEW_PBX_TILE_GIC_DIST_BASE), |
107 | .pfn = __phys_to_pfn(REALVIEW_PBX_TILE_GIC_DIST_BASE), |
108 | .length = SZ_4K, |
109 | .type = MT_DEVICE, |
110 | }, { |
111 | .virtual = IO_ADDRESS(REALVIEW_PBX_TILE_L220_BASE), |
112 | .pfn = __phys_to_pfn(REALVIEW_PBX_TILE_L220_BASE), |
113 | .length = SZ_8K, |
114 | .type = MT_DEVICE, |
115 | } |
116 | }; |
117 | |
118 | static void __init realview_pbx_map_io(void) |
119 | { |
120 | iotable_init(realview_pbx_io_desc, ARRAY_SIZE(realview_pbx_io_desc)); |
121 | if (core_tile_pbx11mp() || core_tile_pbxa9mp()) |
122 | iotable_init(realview_local_io_desc, ARRAY_SIZE(realview_local_io_desc)); |
123 | } |
124 | |
125 | static struct pl061_platform_data gpio0_plat_data = { |
126 | .gpio_base = 0, |
127 | .irq_base = -1, |
128 | }; |
129 | |
130 | static struct pl061_platform_data gpio1_plat_data = { |
131 | .gpio_base = 8, |
132 | .irq_base = -1, |
133 | }; |
134 | |
135 | static struct pl061_platform_data gpio2_plat_data = { |
136 | .gpio_base = 16, |
137 | .irq_base = -1, |
138 | }; |
139 | |
140 | static struct pl022_ssp_controller ssp0_plat_data = { |
141 | .bus_id = 0, |
142 | .enable_dma = 0, |
143 | .num_chipselect = 1, |
144 | }; |
145 | |
146 | /* |
147 | * RealView PBXCore AMBA devices |
148 | */ |
149 | |
150 | #define GPIO2_IRQ { IRQ_PBX_GPIO2, NO_IRQ } |
151 | #define GPIO2_DMA { 0, 0 } |
152 | #define GPIO3_IRQ { IRQ_PBX_GPIO3, NO_IRQ } |
153 | #define GPIO3_DMA { 0, 0 } |
154 | #define AACI_IRQ { IRQ_PBX_AACI, NO_IRQ } |
155 | #define AACI_DMA { 0x80, 0x81 } |
156 | #define MMCI0_IRQ { IRQ_PBX_MMCI0A, IRQ_PBX_MMCI0B } |
157 | #define MMCI0_DMA { 0x84, 0 } |
158 | #define KMI0_IRQ { IRQ_PBX_KMI0, NO_IRQ } |
159 | #define KMI0_DMA { 0, 0 } |
160 | #define KMI1_IRQ { IRQ_PBX_KMI1, NO_IRQ } |
161 | #define KMI1_DMA { 0, 0 } |
162 | #define PBX_SMC_IRQ { NO_IRQ, NO_IRQ } |
163 | #define PBX_SMC_DMA { 0, 0 } |
164 | #define MPMC_IRQ { NO_IRQ, NO_IRQ } |
165 | #define MPMC_DMA { 0, 0 } |
166 | #define PBX_CLCD_IRQ { IRQ_PBX_CLCD, NO_IRQ } |
167 | #define PBX_CLCD_DMA { 0, 0 } |
168 | #define DMAC_IRQ { IRQ_PBX_DMAC, NO_IRQ } |
169 | #define DMAC_DMA { 0, 0 } |
170 | #define SCTL_IRQ { NO_IRQ, NO_IRQ } |
171 | #define SCTL_DMA { 0, 0 } |
172 | #define PBX_WATCHDOG_IRQ { IRQ_PBX_WATCHDOG, NO_IRQ } |
173 | #define PBX_WATCHDOG_DMA { 0, 0 } |
174 | #define PBX_GPIO0_IRQ { IRQ_PBX_GPIO0, NO_IRQ } |
175 | #define PBX_GPIO0_DMA { 0, 0 } |
176 | #define GPIO1_IRQ { IRQ_PBX_GPIO1, NO_IRQ } |
177 | #define GPIO1_DMA { 0, 0 } |
178 | #define PBX_RTC_IRQ { IRQ_PBX_RTC, NO_IRQ } |
179 | #define PBX_RTC_DMA { 0, 0 } |
180 | #define SCI_IRQ { IRQ_PBX_SCI, NO_IRQ } |
181 | #define SCI_DMA { 7, 6 } |
182 | #define PBX_UART0_IRQ { IRQ_PBX_UART0, NO_IRQ } |
183 | #define PBX_UART0_DMA { 15, 14 } |
184 | #define PBX_UART1_IRQ { IRQ_PBX_UART1, NO_IRQ } |
185 | #define PBX_UART1_DMA { 13, 12 } |
186 | #define PBX_UART2_IRQ { IRQ_PBX_UART2, NO_IRQ } |
187 | #define PBX_UART2_DMA { 11, 10 } |
188 | #define PBX_UART3_IRQ { IRQ_PBX_UART3, NO_IRQ } |
189 | #define PBX_UART3_DMA { 0x86, 0x87 } |
190 | #define PBX_SSP_IRQ { IRQ_PBX_SSP, NO_IRQ } |
191 | #define PBX_SSP_DMA { 9, 8 } |
192 | |
193 | /* FPGA Primecells */ |
194 | AMBA_DEVICE(aaci, "fpga:aaci", AACI, NULL); |
195 | AMBA_DEVICE(mmc0, "fpga:mmc0", MMCI0, &realview_mmc0_plat_data); |
196 | AMBA_DEVICE(kmi0, "fpga:kmi0", KMI0, NULL); |
197 | AMBA_DEVICE(kmi1, "fpga:kmi1", KMI1, NULL); |
198 | AMBA_DEVICE(uart3, "fpga:uart3", PBX_UART3, NULL); |
199 | |
200 | /* DevChip Primecells */ |
201 | AMBA_DEVICE(smc, "dev:smc", PBX_SMC, NULL); |
202 | AMBA_DEVICE(sctl, "dev:sctl", SCTL, NULL); |
203 | AMBA_DEVICE(wdog, "dev:wdog", PBX_WATCHDOG, NULL); |
204 | AMBA_DEVICE(gpio0, "dev:gpio0", PBX_GPIO0, &gpio0_plat_data); |
205 | AMBA_DEVICE(gpio1, "dev:gpio1", GPIO1, &gpio1_plat_data); |
206 | AMBA_DEVICE(gpio2, "dev:gpio2", GPIO2, &gpio2_plat_data); |
207 | AMBA_DEVICE(rtc, "dev:rtc", PBX_RTC, NULL); |
208 | AMBA_DEVICE(sci0, "dev:sci0", SCI, NULL); |
209 | AMBA_DEVICE(uart0, "dev:uart0", PBX_UART0, NULL); |
210 | AMBA_DEVICE(uart1, "dev:uart1", PBX_UART1, NULL); |
211 | AMBA_DEVICE(uart2, "dev:uart2", PBX_UART2, NULL); |
212 | AMBA_DEVICE(ssp0, "dev:ssp0", PBX_SSP, &ssp0_plat_data); |
213 | |
214 | /* Primecells on the NEC ISSP chip */ |
215 | AMBA_DEVICE(clcd, "issp:clcd", PBX_CLCD, &clcd_plat_data); |
216 | AMBA_DEVICE(dmac, "issp:dmac", DMAC, NULL); |
217 | |
218 | static struct amba_device *amba_devs[] __initdata = { |
219 | &dmac_device, |
220 | &uart0_device, |
221 | &uart1_device, |
222 | &uart2_device, |
223 | &uart3_device, |
224 | &smc_device, |
225 | &clcd_device, |
226 | &sctl_device, |
227 | &wdog_device, |
228 | &gpio0_device, |
229 | &gpio1_device, |
230 | &gpio2_device, |
231 | &rtc_device, |
232 | &sci0_device, |
233 | &ssp0_device, |
234 | &aaci_device, |
235 | &mmc0_device, |
236 | &kmi0_device, |
237 | &kmi1_device, |
238 | }; |
239 | |
240 | /* |
241 | * RealView PB-X platform devices |
242 | */ |
243 | static struct resource realview_pbx_flash_resources[] = { |
244 | [0] = { |
245 | .start = REALVIEW_PBX_FLASH0_BASE, |
246 | .end = REALVIEW_PBX_FLASH0_BASE + REALVIEW_PBX_FLASH0_SIZE - 1, |
247 | .flags = IORESOURCE_MEM, |
248 | }, |
249 | [1] = { |
250 | .start = REALVIEW_PBX_FLASH1_BASE, |
251 | .end = REALVIEW_PBX_FLASH1_BASE + REALVIEW_PBX_FLASH1_SIZE - 1, |
252 | .flags = IORESOURCE_MEM, |
253 | }, |
254 | }; |
255 | |
256 | static struct resource realview_pbx_smsc911x_resources[] = { |
257 | [0] = { |
258 | .start = REALVIEW_PBX_ETH_BASE, |
259 | .end = REALVIEW_PBX_ETH_BASE + SZ_64K - 1, |
260 | .flags = IORESOURCE_MEM, |
261 | }, |
262 | [1] = { |
263 | .start = IRQ_PBX_ETH, |
264 | .end = IRQ_PBX_ETH, |
265 | .flags = IORESOURCE_IRQ, |
266 | }, |
267 | }; |
268 | |
269 | static struct resource realview_pbx_isp1761_resources[] = { |
270 | [0] = { |
271 | .start = REALVIEW_PBX_USB_BASE, |
272 | .end = REALVIEW_PBX_USB_BASE + SZ_128K - 1, |
273 | .flags = IORESOURCE_MEM, |
274 | }, |
275 | [1] = { |
276 | .start = IRQ_PBX_USB, |
277 | .end = IRQ_PBX_USB, |
278 | .flags = IORESOURCE_IRQ, |
279 | }, |
280 | }; |
281 | |
282 | static struct resource pmu_resources[] = { |
283 | [0] = { |
284 | .start = IRQ_PBX_PMU_CPU0, |
285 | .end = IRQ_PBX_PMU_CPU0, |
286 | .flags = IORESOURCE_IRQ, |
287 | }, |
288 | [1] = { |
289 | .start = IRQ_PBX_PMU_CPU1, |
290 | .end = IRQ_PBX_PMU_CPU1, |
291 | .flags = IORESOURCE_IRQ, |
292 | }, |
293 | [2] = { |
294 | .start = IRQ_PBX_PMU_CPU2, |
295 | .end = IRQ_PBX_PMU_CPU2, |
296 | .flags = IORESOURCE_IRQ, |
297 | }, |
298 | [3] = { |
299 | .start = IRQ_PBX_PMU_CPU3, |
300 | .end = IRQ_PBX_PMU_CPU3, |
301 | .flags = IORESOURCE_IRQ, |
302 | }, |
303 | }; |
304 | |
305 | static struct platform_device pmu_device = { |
306 | .name = "arm-pmu", |
307 | .id = ARM_PMU_DEVICE_CPU, |
308 | .num_resources = ARRAY_SIZE(pmu_resources), |
309 | .resource = pmu_resources, |
310 | }; |
311 | |
312 | static void __init gic_init_irq(void) |
313 | { |
314 | /* ARM PBX on-board GIC */ |
315 | if (core_tile_pbx11mp() || core_tile_pbxa9mp()) { |
316 | gic_cpu_base_addr = __io_address(REALVIEW_PBX_TILE_GIC_CPU_BASE); |
317 | gic_dist_init(0, __io_address(REALVIEW_PBX_TILE_GIC_DIST_BASE), |
318 | 29); |
319 | gic_cpu_init(0, __io_address(REALVIEW_PBX_TILE_GIC_CPU_BASE)); |
320 | } else { |
321 | gic_cpu_base_addr = __io_address(REALVIEW_PBX_GIC_CPU_BASE); |
322 | gic_dist_init(0, __io_address(REALVIEW_PBX_GIC_DIST_BASE), |
323 | IRQ_PBX_GIC_START); |
324 | gic_cpu_init(0, __io_address(REALVIEW_PBX_GIC_CPU_BASE)); |
325 | } |
326 | } |
327 | |
328 | static void __init realview_pbx_timer_init(void) |
329 | { |
330 | timer0_va_base = __io_address(REALVIEW_PBX_TIMER0_1_BASE); |
331 | timer1_va_base = __io_address(REALVIEW_PBX_TIMER0_1_BASE) + 0x20; |
332 | timer2_va_base = __io_address(REALVIEW_PBX_TIMER2_3_BASE); |
333 | timer3_va_base = __io_address(REALVIEW_PBX_TIMER2_3_BASE) + 0x20; |
334 | |
335 | #ifdef CONFIG_LOCAL_TIMERS |
336 | if (core_tile_pbx11mp() || core_tile_pbxa9mp()) |
337 | twd_base = __io_address(REALVIEW_PBX_TILE_TWD_BASE); |
338 | #endif |
339 | realview_timer_init(IRQ_PBX_TIMER0_1); |
340 | } |
341 | |
342 | static struct sys_timer realview_pbx_timer = { |
343 | .init = realview_pbx_timer_init, |
344 | }; |
345 | |
346 | static void realview_pbx_fixup(struct machine_desc *mdesc, struct tag *tags, |
347 | char **from, struct meminfo *meminfo) |
348 | { |
349 | #ifdef CONFIG_SPARSEMEM |
350 | /* |
351 | * Memory configuration with SPARSEMEM enabled on RealView PBX (see |
352 | * asm/mach/memory.h for more information). |
353 | */ |
354 | meminfo->bank[0].start = 0; |
355 | meminfo->bank[0].size = SZ_256M; |
356 | meminfo->bank[1].start = 0x20000000; |
357 | meminfo->bank[1].size = SZ_512M; |
358 | meminfo->bank[2].start = 0x80000000; |
359 | meminfo->bank[2].size = SZ_256M; |
360 | meminfo->nr_banks = 3; |
361 | #else |
362 | realview_fixup(mdesc, tags, from, meminfo); |
363 | #endif |
364 | } |
365 | |
366 | static void realview_pbx_reset(char mode) |
367 | { |
368 | void __iomem *reset_ctrl = __io_address(REALVIEW_SYS_RESETCTL); |
369 | void __iomem *lock_ctrl = __io_address(REALVIEW_SYS_LOCK); |
370 | |
371 | /* |
372 | * To reset, we hit the on-board reset register |
373 | * in the system FPGA |
374 | */ |
375 | __raw_writel(REALVIEW_SYS_LOCK_VAL, lock_ctrl); |
376 | __raw_writel(0x00F0, reset_ctrl); |
377 | __raw_writel(0x00F4, reset_ctrl); |
378 | } |
379 | |
380 | static void __init realview_pbx_init(void) |
381 | { |
382 | int i; |
383 | |
384 | #ifdef CONFIG_CACHE_L2X0 |
385 | if (core_tile_pbxa9mp()) { |
386 | void __iomem *l2x0_base = |
387 | __io_address(REALVIEW_PBX_TILE_L220_BASE); |
388 | |
389 | /* set RAM latencies to 1 cycle for eASIC */ |
390 | writel(0, l2x0_base + L2X0_TAG_LATENCY_CTRL); |
391 | writel(0, l2x0_base + L2X0_DATA_LATENCY_CTRL); |
392 | |
393 | /* 16KB way size, 8-way associativity, parity disabled |
394 | * Bits: .. 0 0 0 0 1 00 1 0 1 001 0 000 0 .... .... .... */ |
395 | l2x0_init(l2x0_base, 0x02520000, 0xc0000fff); |
396 | platform_device_register(&pmu_device); |
397 | } |
398 | #endif |
399 | |
400 | realview_flash_register(realview_pbx_flash_resources, |
401 | ARRAY_SIZE(realview_pbx_flash_resources)); |
402 | realview_eth_register(NULL, realview_pbx_smsc911x_resources); |
403 | platform_device_register(&realview_i2c_device); |
404 | platform_device_register(&realview_cf_device); |
405 | realview_usb_register(realview_pbx_isp1761_resources); |
406 | |
407 | for (i = 0; i < ARRAY_SIZE(amba_devs); i++) { |
408 | struct amba_device *d = amba_devs[i]; |
409 | amba_device_register(d, &iomem_resource); |
410 | } |
411 | |
412 | #ifdef CONFIG_LEDS |
413 | leds_event = realview_leds_event; |
414 | #endif |
415 | realview_reset = realview_pbx_reset; |
416 | } |
417 | |
418 | MACHINE_START(REALVIEW_PBX, "ARM-RealView PBX") |
419 | /* Maintainer: ARM Ltd/Deep Blue Solutions Ltd */ |
420 | .boot_params = PHYS_OFFSET + 0x00000100, |
421 | .fixup = realview_pbx_fixup, |
422 | .map_io = realview_pbx_map_io, |
423 | .init_irq = gic_init_irq, |
424 | .timer = &realview_pbx_timer, |
425 | .init_machine = realview_pbx_init, |
426 | MACHINE_END |
427 |
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