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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> |
d6ada860 | 27 | #include <linux/amba/pl022.h> |
1b504bbe CT |
28 | #include <linux/io.h> |
29 | ||
30 | #include <asm/irq.h> | |
31 | #include <asm/leds.h> | |
32 | #include <asm/mach-types.h> | |
f417cbad | 33 | #include <asm/pmu.h> |
c3c21740 | 34 | #include <asm/smp_twd.h> |
cc9897df | 35 | #include <asm/pgtable.h> |
1b504bbe CT |
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> | |
1b504bbe CT |
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 | ||
eb7fffa3 RK |
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 | ||
d6ada860 LW |
140 | static struct pl022_ssp_controller ssp0_plat_data = { |
141 | .bus_id = 0, | |
142 | .enable_dma = 0, | |
143 | .num_chipselect = 1, | |
144 | }; | |
145 | ||
1b504bbe CT |
146 | /* |
147 | * RealView PBXCore AMBA devices | |
148 | */ | |
149 | ||
150 | #define GPIO2_IRQ { IRQ_PBX_GPIO2, NO_IRQ } | |
1b504bbe | 151 | #define GPIO3_IRQ { IRQ_PBX_GPIO3, NO_IRQ } |
1b504bbe | 152 | #define AACI_IRQ { IRQ_PBX_AACI, NO_IRQ } |
1b504bbe | 153 | #define MMCI0_IRQ { IRQ_PBX_MMCI0A, IRQ_PBX_MMCI0B } |
1b504bbe | 154 | #define KMI0_IRQ { IRQ_PBX_KMI0, NO_IRQ } |
1b504bbe | 155 | #define KMI1_IRQ { IRQ_PBX_KMI1, NO_IRQ } |
1b504bbe | 156 | #define PBX_SMC_IRQ { NO_IRQ, NO_IRQ } |
1b504bbe | 157 | #define MPMC_IRQ { NO_IRQ, NO_IRQ } |
1b504bbe | 158 | #define PBX_CLCD_IRQ { IRQ_PBX_CLCD, NO_IRQ } |
1b504bbe | 159 | #define DMAC_IRQ { IRQ_PBX_DMAC, NO_IRQ } |
1b504bbe | 160 | #define SCTL_IRQ { NO_IRQ, NO_IRQ } |
1b504bbe | 161 | #define PBX_WATCHDOG_IRQ { IRQ_PBX_WATCHDOG, NO_IRQ } |
1b504bbe | 162 | #define PBX_GPIO0_IRQ { IRQ_PBX_GPIO0, NO_IRQ } |
1b504bbe | 163 | #define GPIO1_IRQ { IRQ_PBX_GPIO1, NO_IRQ } |
1b504bbe | 164 | #define PBX_RTC_IRQ { IRQ_PBX_RTC, NO_IRQ } |
1b504bbe | 165 | #define SCI_IRQ { IRQ_PBX_SCI, NO_IRQ } |
1b504bbe | 166 | #define PBX_UART0_IRQ { IRQ_PBX_UART0, NO_IRQ } |
1b504bbe | 167 | #define PBX_UART1_IRQ { IRQ_PBX_UART1, NO_IRQ } |
1b504bbe | 168 | #define PBX_UART2_IRQ { IRQ_PBX_UART2, NO_IRQ } |
1b504bbe | 169 | #define PBX_UART3_IRQ { IRQ_PBX_UART3, NO_IRQ } |
1b504bbe | 170 | #define PBX_SSP_IRQ { IRQ_PBX_SSP, NO_IRQ } |
1b504bbe CT |
171 | |
172 | /* FPGA Primecells */ | |
4321532c LW |
173 | AMBA_DEVICE(aaci, "fpga:aaci", AACI, NULL); |
174 | AMBA_DEVICE(mmc0, "fpga:mmc0", MMCI0, &realview_mmc0_plat_data); | |
175 | AMBA_DEVICE(kmi0, "fpga:kmi0", KMI0, NULL); | |
176 | AMBA_DEVICE(kmi1, "fpga:kmi1", KMI1, NULL); | |
177 | AMBA_DEVICE(uart3, "fpga:uart3", PBX_UART3, NULL); | |
1b504bbe CT |
178 | |
179 | /* DevChip Primecells */ | |
4321532c LW |
180 | AMBA_DEVICE(smc, "dev:smc", PBX_SMC, NULL); |
181 | AMBA_DEVICE(sctl, "dev:sctl", SCTL, NULL); | |
182 | AMBA_DEVICE(wdog, "dev:wdog", PBX_WATCHDOG, NULL); | |
183 | AMBA_DEVICE(gpio0, "dev:gpio0", PBX_GPIO0, &gpio0_plat_data); | |
184 | AMBA_DEVICE(gpio1, "dev:gpio1", GPIO1, &gpio1_plat_data); | |
185 | AMBA_DEVICE(gpio2, "dev:gpio2", GPIO2, &gpio2_plat_data); | |
186 | AMBA_DEVICE(rtc, "dev:rtc", PBX_RTC, NULL); | |
187 | AMBA_DEVICE(sci0, "dev:sci0", SCI, NULL); | |
188 | AMBA_DEVICE(uart0, "dev:uart0", PBX_UART0, NULL); | |
189 | AMBA_DEVICE(uart1, "dev:uart1", PBX_UART1, NULL); | |
190 | AMBA_DEVICE(uart2, "dev:uart2", PBX_UART2, NULL); | |
d6ada860 | 191 | AMBA_DEVICE(ssp0, "dev:ssp0", PBX_SSP, &ssp0_plat_data); |
1b504bbe CT |
192 | |
193 | /* Primecells on the NEC ISSP chip */ | |
4321532c LW |
194 | AMBA_DEVICE(clcd, "issp:clcd", PBX_CLCD, &clcd_plat_data); |
195 | AMBA_DEVICE(dmac, "issp:dmac", DMAC, NULL); | |
1b504bbe CT |
196 | |
197 | static struct amba_device *amba_devs[] __initdata = { | |
198 | &dmac_device, | |
199 | &uart0_device, | |
200 | &uart1_device, | |
201 | &uart2_device, | |
202 | &uart3_device, | |
203 | &smc_device, | |
204 | &clcd_device, | |
205 | &sctl_device, | |
206 | &wdog_device, | |
207 | &gpio0_device, | |
208 | &gpio1_device, | |
209 | &gpio2_device, | |
210 | &rtc_device, | |
211 | &sci0_device, | |
212 | &ssp0_device, | |
213 | &aaci_device, | |
214 | &mmc0_device, | |
215 | &kmi0_device, | |
216 | &kmi1_device, | |
217 | }; | |
218 | ||
219 | /* | |
220 | * RealView PB-X platform devices | |
221 | */ | |
222 | static struct resource realview_pbx_flash_resources[] = { | |
223 | [0] = { | |
224 | .start = REALVIEW_PBX_FLASH0_BASE, | |
225 | .end = REALVIEW_PBX_FLASH0_BASE + REALVIEW_PBX_FLASH0_SIZE - 1, | |
226 | .flags = IORESOURCE_MEM, | |
227 | }, | |
228 | [1] = { | |
229 | .start = REALVIEW_PBX_FLASH1_BASE, | |
230 | .end = REALVIEW_PBX_FLASH1_BASE + REALVIEW_PBX_FLASH1_SIZE - 1, | |
231 | .flags = IORESOURCE_MEM, | |
232 | }, | |
233 | }; | |
234 | ||
235 | static struct resource realview_pbx_smsc911x_resources[] = { | |
236 | [0] = { | |
237 | .start = REALVIEW_PBX_ETH_BASE, | |
238 | .end = REALVIEW_PBX_ETH_BASE + SZ_64K - 1, | |
239 | .flags = IORESOURCE_MEM, | |
240 | }, | |
241 | [1] = { | |
242 | .start = IRQ_PBX_ETH, | |
243 | .end = IRQ_PBX_ETH, | |
244 | .flags = IORESOURCE_IRQ, | |
245 | }, | |
246 | }; | |
247 | ||
248 | static struct resource realview_pbx_isp1761_resources[] = { | |
249 | [0] = { | |
250 | .start = REALVIEW_PBX_USB_BASE, | |
251 | .end = REALVIEW_PBX_USB_BASE + SZ_128K - 1, | |
252 | .flags = IORESOURCE_MEM, | |
253 | }, | |
254 | [1] = { | |
255 | .start = IRQ_PBX_USB, | |
256 | .end = IRQ_PBX_USB, | |
257 | .flags = IORESOURCE_IRQ, | |
258 | }, | |
259 | }; | |
260 | ||
f417cbad WD |
261 | static struct resource pmu_resources[] = { |
262 | [0] = { | |
263 | .start = IRQ_PBX_PMU_CPU0, | |
264 | .end = IRQ_PBX_PMU_CPU0, | |
265 | .flags = IORESOURCE_IRQ, | |
266 | }, | |
267 | [1] = { | |
268 | .start = IRQ_PBX_PMU_CPU1, | |
269 | .end = IRQ_PBX_PMU_CPU1, | |
270 | .flags = IORESOURCE_IRQ, | |
271 | }, | |
272 | [2] = { | |
273 | .start = IRQ_PBX_PMU_CPU2, | |
274 | .end = IRQ_PBX_PMU_CPU2, | |
275 | .flags = IORESOURCE_IRQ, | |
276 | }, | |
277 | [3] = { | |
278 | .start = IRQ_PBX_PMU_CPU3, | |
279 | .end = IRQ_PBX_PMU_CPU3, | |
280 | .flags = IORESOURCE_IRQ, | |
281 | }, | |
282 | }; | |
283 | ||
284 | static struct platform_device pmu_device = { | |
285 | .name = "arm-pmu", | |
286 | .id = ARM_PMU_DEVICE_CPU, | |
287 | .num_resources = ARRAY_SIZE(pmu_resources), | |
288 | .resource = pmu_resources, | |
289 | }; | |
290 | ||
1b504bbe CT |
291 | static void __init gic_init_irq(void) |
292 | { | |
293 | /* ARM PBX on-board GIC */ | |
294 | if (core_tile_pbx11mp() || core_tile_pbxa9mp()) { | |
b580b899 RK |
295 | gic_init(0, 29, __io_address(REALVIEW_PBX_TILE_GIC_DIST_BASE), |
296 | __io_address(REALVIEW_PBX_TILE_GIC_CPU_BASE)); | |
1b504bbe | 297 | } else { |
b580b899 RK |
298 | gic_init(0, IRQ_PBX_GIC_START, |
299 | __io_address(REALVIEW_PBX_GIC_DIST_BASE), | |
300 | __io_address(REALVIEW_PBX_GIC_CPU_BASE)); | |
1b504bbe CT |
301 | } |
302 | } | |
303 | ||
304 | static void __init realview_pbx_timer_init(void) | |
305 | { | |
306 | timer0_va_base = __io_address(REALVIEW_PBX_TIMER0_1_BASE); | |
307 | timer1_va_base = __io_address(REALVIEW_PBX_TIMER0_1_BASE) + 0x20; | |
308 | timer2_va_base = __io_address(REALVIEW_PBX_TIMER2_3_BASE); | |
309 | timer3_va_base = __io_address(REALVIEW_PBX_TIMER2_3_BASE) + 0x20; | |
310 | ||
311 | #ifdef CONFIG_LOCAL_TIMERS | |
312 | if (core_tile_pbx11mp() || core_tile_pbxa9mp()) | |
313 | twd_base = __io_address(REALVIEW_PBX_TILE_TWD_BASE); | |
314 | #endif | |
315 | realview_timer_init(IRQ_PBX_TIMER0_1); | |
316 | } | |
317 | ||
318 | static struct sys_timer realview_pbx_timer = { | |
319 | .init = realview_pbx_timer_init, | |
320 | }; | |
321 | ||
c97c5aa8 CM |
322 | static void realview_pbx_fixup(struct machine_desc *mdesc, struct tag *tags, |
323 | char **from, struct meminfo *meminfo) | |
324 | { | |
325 | #ifdef CONFIG_SPARSEMEM | |
326 | /* | |
327 | * Memory configuration with SPARSEMEM enabled on RealView PBX (see | |
328 | * asm/mach/memory.h for more information). | |
329 | */ | |
330 | meminfo->bank[0].start = 0; | |
331 | meminfo->bank[0].size = SZ_256M; | |
332 | meminfo->bank[1].start = 0x20000000; | |
333 | meminfo->bank[1].size = SZ_512M; | |
334 | meminfo->bank[2].start = 0x80000000; | |
335 | meminfo->bank[2].size = SZ_256M; | |
336 | meminfo->nr_banks = 3; | |
337 | #else | |
338 | realview_fixup(mdesc, tags, from, meminfo); | |
339 | #endif | |
340 | } | |
341 | ||
4c9f8be7 CT |
342 | static void realview_pbx_reset(char mode) |
343 | { | |
344 | void __iomem *reset_ctrl = __io_address(REALVIEW_SYS_RESETCTL); | |
345 | void __iomem *lock_ctrl = __io_address(REALVIEW_SYS_LOCK); | |
346 | ||
347 | /* | |
348 | * To reset, we hit the on-board reset register | |
349 | * in the system FPGA | |
350 | */ | |
351 | __raw_writel(REALVIEW_SYS_LOCK_VAL, lock_ctrl); | |
df2e615a CT |
352 | __raw_writel(0x00F0, reset_ctrl); |
353 | __raw_writel(0x00F4, reset_ctrl); | |
4c9f8be7 CT |
354 | } |
355 | ||
1b504bbe CT |
356 | static void __init realview_pbx_init(void) |
357 | { | |
358 | int i; | |
359 | ||
360 | #ifdef CONFIG_CACHE_L2X0 | |
361 | if (core_tile_pbxa9mp()) { | |
362 | void __iomem *l2x0_base = | |
363 | __io_address(REALVIEW_PBX_TILE_L220_BASE); | |
364 | ||
365 | /* set RAM latencies to 1 cycle for eASIC */ | |
366 | writel(0, l2x0_base + L2X0_TAG_LATENCY_CTRL); | |
367 | writel(0, l2x0_base + L2X0_DATA_LATENCY_CTRL); | |
368 | ||
369 | /* 16KB way size, 8-way associativity, parity disabled | |
370 | * Bits: .. 0 0 0 0 1 00 1 0 1 001 0 000 0 .... .... .... */ | |
371 | l2x0_init(l2x0_base, 0x02520000, 0xc0000fff); | |
f417cbad | 372 | platform_device_register(&pmu_device); |
1b504bbe CT |
373 | } |
374 | #endif | |
375 | ||
376 | realview_flash_register(realview_pbx_flash_resources, | |
377 | ARRAY_SIZE(realview_pbx_flash_resources)); | |
378 | realview_eth_register(NULL, realview_pbx_smsc911x_resources); | |
379 | platform_device_register(&realview_i2c_device); | |
380 | platform_device_register(&realview_cf_device); | |
381 | realview_usb_register(realview_pbx_isp1761_resources); | |
382 | ||
383 | for (i = 0; i < ARRAY_SIZE(amba_devs); i++) { | |
384 | struct amba_device *d = amba_devs[i]; | |
385 | amba_device_register(d, &iomem_resource); | |
386 | } | |
387 | ||
388 | #ifdef CONFIG_LEDS | |
389 | leds_event = realview_leds_event; | |
390 | #endif | |
4c9f8be7 | 391 | realview_reset = realview_pbx_reset; |
1b504bbe CT |
392 | } |
393 | ||
394 | MACHINE_START(REALVIEW_PBX, "ARM-RealView PBX") | |
395 | /* Maintainer: ARM Ltd/Deep Blue Solutions Ltd */ | |
b75c178a | 396 | .boot_params = PLAT_PHYS_OFFSET + 0x00000100, |
c97c5aa8 | 397 | .fixup = realview_pbx_fixup, |
1b504bbe | 398 | .map_io = realview_pbx_map_io, |
631e55f9 | 399 | .init_early = realview_init_early, |
1b504bbe CT |
400 | .init_irq = gic_init_irq, |
401 | .timer = &realview_pbx_timer, | |
402 | .init_machine = realview_pbx_init, | |
00e9125e NP |
403 | #ifdef CONFIG_ZONE_DMA |
404 | .dma_zone_size = SZ_256M, | |
405 | #endif | |
1b504bbe | 406 | MACHINE_END |