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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> | |
edbaa603 | 23 | #include <linux/device.h> |
1b504bbe | 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 | 28 | #include <linux/io.h> |
520f7bd7 | 29 | #include <linux/irqchip/arm-gic.h> |
f9a6aa43 | 30 | #include <linux/platform_data/clk-realview.h> |
7b6d864b | 31 | #include <linux/reboot.h> |
1c2f87c2 | 32 | #include <linux/memblock.h> |
1b504bbe CT |
33 | |
34 | #include <asm/irq.h> | |
1b504bbe | 35 | #include <asm/mach-types.h> |
c3c21740 | 36 | #include <asm/smp_twd.h> |
cc9897df | 37 | #include <asm/pgtable.h> |
1b504bbe CT |
38 | #include <asm/hardware/cache-l2x0.h> |
39 | ||
40 | #include <asm/mach/arch.h> | |
41 | #include <asm/mach/map.h> | |
1b504bbe CT |
42 | #include <asm/mach/time.h> |
43 | ||
6d407a6e AB |
44 | #include "hardware.h" |
45 | #include "board-pbx.h" | |
38d2cfcc | 46 | #include "irqs-pbx.h" |
1b504bbe CT |
47 | |
48 | #include "core.h" | |
49 | ||
50 | static struct map_desc realview_pbx_io_desc[] __initdata = { | |
51 | { | |
52 | .virtual = IO_ADDRESS(REALVIEW_SYS_BASE), | |
53 | .pfn = __phys_to_pfn(REALVIEW_SYS_BASE), | |
54 | .length = SZ_4K, | |
55 | .type = MT_DEVICE, | |
56 | }, { | |
57 | .virtual = IO_ADDRESS(REALVIEW_PBX_GIC_CPU_BASE), | |
58 | .pfn = __phys_to_pfn(REALVIEW_PBX_GIC_CPU_BASE), | |
59 | .length = SZ_4K, | |
60 | .type = MT_DEVICE, | |
61 | }, { | |
62 | .virtual = IO_ADDRESS(REALVIEW_PBX_GIC_DIST_BASE), | |
63 | .pfn = __phys_to_pfn(REALVIEW_PBX_GIC_DIST_BASE), | |
64 | .length = SZ_4K, | |
65 | .type = MT_DEVICE, | |
66 | }, { | |
67 | .virtual = IO_ADDRESS(REALVIEW_SCTL_BASE), | |
68 | .pfn = __phys_to_pfn(REALVIEW_SCTL_BASE), | |
69 | .length = SZ_4K, | |
70 | .type = MT_DEVICE, | |
71 | }, { | |
72 | .virtual = IO_ADDRESS(REALVIEW_PBX_TIMER0_1_BASE), | |
73 | .pfn = __phys_to_pfn(REALVIEW_PBX_TIMER0_1_BASE), | |
74 | .length = SZ_4K, | |
75 | .type = MT_DEVICE, | |
76 | }, { | |
77 | .virtual = IO_ADDRESS(REALVIEW_PBX_TIMER2_3_BASE), | |
78 | .pfn = __phys_to_pfn(REALVIEW_PBX_TIMER2_3_BASE), | |
79 | .length = SZ_4K, | |
80 | .type = MT_DEVICE, | |
81 | }, | |
1b504bbe CT |
82 | #ifdef CONFIG_DEBUG_LL |
83 | { | |
84 | .virtual = IO_ADDRESS(REALVIEW_PBX_UART0_BASE), | |
85 | .pfn = __phys_to_pfn(REALVIEW_PBX_UART0_BASE), | |
86 | .length = SZ_4K, | |
87 | .type = MT_DEVICE, | |
88 | }, | |
89 | #endif | |
90 | }; | |
91 | ||
92 | static struct map_desc realview_local_io_desc[] __initdata = { | |
93 | { | |
9ceceb65 RH |
94 | .virtual = IO_ADDRESS(REALVIEW_PBX_TILE_SCU_BASE), |
95 | .pfn = __phys_to_pfn(REALVIEW_PBX_TILE_SCU_BASE), | |
1b504bbe CT |
96 | .length = SZ_4K, |
97 | .type = MT_DEVICE, | |
98 | }, { | |
99 | .virtual = IO_ADDRESS(REALVIEW_PBX_TILE_GIC_DIST_BASE), | |
100 | .pfn = __phys_to_pfn(REALVIEW_PBX_TILE_GIC_DIST_BASE), | |
101 | .length = SZ_4K, | |
102 | .type = MT_DEVICE, | |
103 | }, { | |
104 | .virtual = IO_ADDRESS(REALVIEW_PBX_TILE_L220_BASE), | |
105 | .pfn = __phys_to_pfn(REALVIEW_PBX_TILE_L220_BASE), | |
106 | .length = SZ_8K, | |
107 | .type = MT_DEVICE, | |
108 | } | |
109 | }; | |
110 | ||
111 | static void __init realview_pbx_map_io(void) | |
112 | { | |
113 | iotable_init(realview_pbx_io_desc, ARRAY_SIZE(realview_pbx_io_desc)); | |
114 | if (core_tile_pbx11mp() || core_tile_pbxa9mp()) | |
115 | iotable_init(realview_local_io_desc, ARRAY_SIZE(realview_local_io_desc)); | |
116 | } | |
117 | ||
eb7fffa3 RK |
118 | static struct pl061_platform_data gpio0_plat_data = { |
119 | .gpio_base = 0, | |
eb7fffa3 RK |
120 | }; |
121 | ||
122 | static struct pl061_platform_data gpio1_plat_data = { | |
123 | .gpio_base = 8, | |
eb7fffa3 RK |
124 | }; |
125 | ||
126 | static struct pl061_platform_data gpio2_plat_data = { | |
127 | .gpio_base = 16, | |
eb7fffa3 RK |
128 | }; |
129 | ||
d6ada860 LW |
130 | static struct pl022_ssp_controller ssp0_plat_data = { |
131 | .bus_id = 0, | |
132 | .enable_dma = 0, | |
133 | .num_chipselect = 1, | |
134 | }; | |
135 | ||
1b504bbe CT |
136 | /* |
137 | * RealView PBXCore AMBA devices | |
138 | */ | |
139 | ||
0dada61a RK |
140 | #define GPIO2_IRQ { IRQ_PBX_GPIO2 } |
141 | #define GPIO3_IRQ { IRQ_PBX_GPIO3 } | |
142 | #define AACI_IRQ { IRQ_PBX_AACI } | |
1b504bbe | 143 | #define MMCI0_IRQ { IRQ_PBX_MMCI0A, IRQ_PBX_MMCI0B } |
0dada61a RK |
144 | #define KMI0_IRQ { IRQ_PBX_KMI0 } |
145 | #define KMI1_IRQ { IRQ_PBX_KMI1 } | |
146 | #define PBX_SMC_IRQ { } | |
147 | #define MPMC_IRQ { } | |
148 | #define PBX_CLCD_IRQ { IRQ_PBX_CLCD } | |
149 | #define DMAC_IRQ { IRQ_PBX_DMAC } | |
150 | #define SCTL_IRQ { } | |
151 | #define PBX_WATCHDOG_IRQ { IRQ_PBX_WATCHDOG } | |
152 | #define PBX_GPIO0_IRQ { IRQ_PBX_GPIO0 } | |
153 | #define GPIO1_IRQ { IRQ_PBX_GPIO1 } | |
154 | #define PBX_RTC_IRQ { IRQ_PBX_RTC } | |
155 | #define SCI_IRQ { IRQ_PBX_SCI } | |
156 | #define PBX_UART0_IRQ { IRQ_PBX_UART0 } | |
157 | #define PBX_UART1_IRQ { IRQ_PBX_UART1 } | |
158 | #define PBX_UART2_IRQ { IRQ_PBX_UART2 } | |
159 | #define PBX_UART3_IRQ { IRQ_PBX_UART3 } | |
160 | #define PBX_SSP_IRQ { IRQ_PBX_SSP } | |
1b504bbe CT |
161 | |
162 | /* FPGA Primecells */ | |
9199340b RK |
163 | APB_DEVICE(aaci, "fpga:aaci", AACI, NULL); |
164 | APB_DEVICE(mmc0, "fpga:mmc0", MMCI0, &realview_mmc0_plat_data); | |
165 | APB_DEVICE(kmi0, "fpga:kmi0", KMI0, NULL); | |
166 | APB_DEVICE(kmi1, "fpga:kmi1", KMI1, NULL); | |
167 | APB_DEVICE(uart3, "fpga:uart3", PBX_UART3, NULL); | |
1b504bbe CT |
168 | |
169 | /* DevChip Primecells */ | |
9199340b RK |
170 | AHB_DEVICE(smc, "dev:smc", PBX_SMC, NULL); |
171 | AHB_DEVICE(sctl, "dev:sctl", SCTL, NULL); | |
172 | APB_DEVICE(wdog, "dev:wdog", PBX_WATCHDOG, NULL); | |
173 | APB_DEVICE(gpio0, "dev:gpio0", PBX_GPIO0, &gpio0_plat_data); | |
174 | APB_DEVICE(gpio1, "dev:gpio1", GPIO1, &gpio1_plat_data); | |
175 | APB_DEVICE(gpio2, "dev:gpio2", GPIO2, &gpio2_plat_data); | |
176 | APB_DEVICE(rtc, "dev:rtc", PBX_RTC, NULL); | |
177 | APB_DEVICE(sci0, "dev:sci0", SCI, NULL); | |
178 | APB_DEVICE(uart0, "dev:uart0", PBX_UART0, NULL); | |
179 | APB_DEVICE(uart1, "dev:uart1", PBX_UART1, NULL); | |
180 | APB_DEVICE(uart2, "dev:uart2", PBX_UART2, NULL); | |
181 | APB_DEVICE(ssp0, "dev:ssp0", PBX_SSP, &ssp0_plat_data); | |
1b504bbe CT |
182 | |
183 | /* Primecells on the NEC ISSP chip */ | |
9199340b RK |
184 | AHB_DEVICE(clcd, "issp:clcd", PBX_CLCD, &clcd_plat_data); |
185 | AHB_DEVICE(dmac, "issp:dmac", DMAC, NULL); | |
1b504bbe CT |
186 | |
187 | static struct amba_device *amba_devs[] __initdata = { | |
188 | &dmac_device, | |
189 | &uart0_device, | |
190 | &uart1_device, | |
191 | &uart2_device, | |
192 | &uart3_device, | |
193 | &smc_device, | |
194 | &clcd_device, | |
195 | &sctl_device, | |
196 | &wdog_device, | |
197 | &gpio0_device, | |
198 | &gpio1_device, | |
199 | &gpio2_device, | |
200 | &rtc_device, | |
201 | &sci0_device, | |
202 | &ssp0_device, | |
203 | &aaci_device, | |
204 | &mmc0_device, | |
205 | &kmi0_device, | |
206 | &kmi1_device, | |
207 | }; | |
208 | ||
209 | /* | |
210 | * RealView PB-X platform devices | |
211 | */ | |
212 | static struct resource realview_pbx_flash_resources[] = { | |
213 | [0] = { | |
214 | .start = REALVIEW_PBX_FLASH0_BASE, | |
215 | .end = REALVIEW_PBX_FLASH0_BASE + REALVIEW_PBX_FLASH0_SIZE - 1, | |
216 | .flags = IORESOURCE_MEM, | |
217 | }, | |
218 | [1] = { | |
219 | .start = REALVIEW_PBX_FLASH1_BASE, | |
220 | .end = REALVIEW_PBX_FLASH1_BASE + REALVIEW_PBX_FLASH1_SIZE - 1, | |
221 | .flags = IORESOURCE_MEM, | |
222 | }, | |
223 | }; | |
224 | ||
225 | static struct resource realview_pbx_smsc911x_resources[] = { | |
226 | [0] = { | |
227 | .start = REALVIEW_PBX_ETH_BASE, | |
228 | .end = REALVIEW_PBX_ETH_BASE + SZ_64K - 1, | |
229 | .flags = IORESOURCE_MEM, | |
230 | }, | |
231 | [1] = { | |
232 | .start = IRQ_PBX_ETH, | |
233 | .end = IRQ_PBX_ETH, | |
234 | .flags = IORESOURCE_IRQ, | |
235 | }, | |
236 | }; | |
237 | ||
238 | static struct resource realview_pbx_isp1761_resources[] = { | |
239 | [0] = { | |
240 | .start = REALVIEW_PBX_USB_BASE, | |
241 | .end = REALVIEW_PBX_USB_BASE + SZ_128K - 1, | |
242 | .flags = IORESOURCE_MEM, | |
243 | }, | |
244 | [1] = { | |
245 | .start = IRQ_PBX_USB, | |
246 | .end = IRQ_PBX_USB, | |
247 | .flags = IORESOURCE_IRQ, | |
248 | }, | |
249 | }; | |
250 | ||
f417cbad WD |
251 | static struct resource pmu_resources[] = { |
252 | [0] = { | |
253 | .start = IRQ_PBX_PMU_CPU0, | |
254 | .end = IRQ_PBX_PMU_CPU0, | |
255 | .flags = IORESOURCE_IRQ, | |
256 | }, | |
257 | [1] = { | |
258 | .start = IRQ_PBX_PMU_CPU1, | |
259 | .end = IRQ_PBX_PMU_CPU1, | |
260 | .flags = IORESOURCE_IRQ, | |
261 | }, | |
262 | [2] = { | |
263 | .start = IRQ_PBX_PMU_CPU2, | |
264 | .end = IRQ_PBX_PMU_CPU2, | |
265 | .flags = IORESOURCE_IRQ, | |
266 | }, | |
267 | [3] = { | |
268 | .start = IRQ_PBX_PMU_CPU3, | |
269 | .end = IRQ_PBX_PMU_CPU3, | |
270 | .flags = IORESOURCE_IRQ, | |
271 | }, | |
272 | }; | |
273 | ||
274 | static struct platform_device pmu_device = { | |
cbed8388 | 275 | .name = "armv7-pmu", |
df3d17e0 | 276 | .id = -1, |
f417cbad WD |
277 | .num_resources = ARRAY_SIZE(pmu_resources), |
278 | .resource = pmu_resources, | |
279 | }; | |
280 | ||
1b504bbe CT |
281 | static void __init gic_init_irq(void) |
282 | { | |
283 | /* ARM PBX on-board GIC */ | |
284 | if (core_tile_pbx11mp() || core_tile_pbxa9mp()) { | |
b580b899 RK |
285 | gic_init(0, 29, __io_address(REALVIEW_PBX_TILE_GIC_DIST_BASE), |
286 | __io_address(REALVIEW_PBX_TILE_GIC_CPU_BASE)); | |
1b504bbe | 287 | } else { |
b580b899 RK |
288 | gic_init(0, IRQ_PBX_GIC_START, |
289 | __io_address(REALVIEW_PBX_GIC_DIST_BASE), | |
290 | __io_address(REALVIEW_PBX_GIC_CPU_BASE)); | |
1b504bbe CT |
291 | } |
292 | } | |
293 | ||
7c380f27 MZ |
294 | #ifdef CONFIG_HAVE_ARM_TWD |
295 | static DEFINE_TWD_LOCAL_TIMER(twd_local_timer, | |
296 | REALVIEW_PBX_TILE_TWD_BASE, | |
297 | IRQ_LOCALTIMER); | |
298 | ||
299 | static void __init realview_pbx_twd_init(void) | |
300 | { | |
301 | int err = twd_local_timer_register(&twd_local_timer); | |
302 | if (err) | |
303 | pr_err("twd_local_timer_register failed %d\n", err); | |
304 | } | |
305 | #else | |
306 | #define realview_pbx_twd_init() do { } while(0) | |
307 | #endif | |
308 | ||
1b504bbe CT |
309 | static void __init realview_pbx_timer_init(void) |
310 | { | |
311 | timer0_va_base = __io_address(REALVIEW_PBX_TIMER0_1_BASE); | |
312 | timer1_va_base = __io_address(REALVIEW_PBX_TIMER0_1_BASE) + 0x20; | |
313 | timer2_va_base = __io_address(REALVIEW_PBX_TIMER2_3_BASE); | |
314 | timer3_va_base = __io_address(REALVIEW_PBX_TIMER2_3_BASE) + 0x20; | |
315 | ||
f9a6aa43 | 316 | realview_clk_init(__io_address(REALVIEW_SYS_BASE), false); |
1b504bbe | 317 | realview_timer_init(IRQ_PBX_TIMER0_1); |
7c380f27 | 318 | realview_pbx_twd_init(); |
1b504bbe CT |
319 | } |
320 | ||
1c2f87c2 | 321 | static void realview_pbx_fixup(struct tag *tags, char **from) |
c97c5aa8 CM |
322 | { |
323 | #ifdef CONFIG_SPARSEMEM | |
324 | /* | |
325 | * Memory configuration with SPARSEMEM enabled on RealView PBX (see | |
326 | * asm/mach/memory.h for more information). | |
327 | */ | |
1c2f87c2 LA |
328 | |
329 | memblock_add(0, SZ_256M); | |
330 | memblock_add(0x20000000, SZ_512M); | |
331 | memblock_add(0x80000000, SZ_256M); | |
c97c5aa8 | 332 | #else |
1c2f87c2 | 333 | realview_fixup(tags, from); |
c97c5aa8 CM |
334 | #endif |
335 | } | |
336 | ||
7b6d864b | 337 | static void realview_pbx_restart(enum reboot_mode mode, const char *cmd) |
4c9f8be7 CT |
338 | { |
339 | void __iomem *reset_ctrl = __io_address(REALVIEW_SYS_RESETCTL); | |
340 | void __iomem *lock_ctrl = __io_address(REALVIEW_SYS_LOCK); | |
341 | ||
342 | /* | |
343 | * To reset, we hit the on-board reset register | |
344 | * in the system FPGA | |
345 | */ | |
346 | __raw_writel(REALVIEW_SYS_LOCK_VAL, lock_ctrl); | |
df2e615a CT |
347 | __raw_writel(0x00F0, reset_ctrl); |
348 | __raw_writel(0x00F4, reset_ctrl); | |
47cacdd4 | 349 | dsb(); |
4c9f8be7 CT |
350 | } |
351 | ||
1b504bbe CT |
352 | static void __init realview_pbx_init(void) |
353 | { | |
354 | int i; | |
355 | ||
356 | #ifdef CONFIG_CACHE_L2X0 | |
357 | if (core_tile_pbxa9mp()) { | |
358 | void __iomem *l2x0_base = | |
359 | __io_address(REALVIEW_PBX_TILE_L220_BASE); | |
360 | ||
361 | /* set RAM latencies to 1 cycle for eASIC */ | |
1a5a954c RK |
362 | writel(0, l2x0_base + L310_TAG_LATENCY_CTRL); |
363 | writel(0, l2x0_base + L310_DATA_LATENCY_CTRL); | |
1b504bbe CT |
364 | |
365 | /* 16KB way size, 8-way associativity, parity disabled | |
366 | * Bits: .. 0 0 0 0 1 00 1 0 1 001 0 000 0 .... .... .... */ | |
367 | l2x0_init(l2x0_base, 0x02520000, 0xc0000fff); | |
f417cbad | 368 | platform_device_register(&pmu_device); |
1b504bbe CT |
369 | } |
370 | #endif | |
371 | ||
372 | realview_flash_register(realview_pbx_flash_resources, | |
373 | ARRAY_SIZE(realview_pbx_flash_resources)); | |
374 | realview_eth_register(NULL, realview_pbx_smsc911x_resources); | |
375 | platform_device_register(&realview_i2c_device); | |
376 | platform_device_register(&realview_cf_device); | |
e4ecf2bd | 377 | platform_device_register(&realview_leds_device); |
1b504bbe CT |
378 | realview_usb_register(realview_pbx_isp1761_resources); |
379 | ||
380 | for (i = 0; i < ARRAY_SIZE(amba_devs); i++) { | |
381 | struct amba_device *d = amba_devs[i]; | |
382 | amba_device_register(d, &iomem_resource); | |
383 | } | |
1b504bbe CT |
384 | } |
385 | ||
386 | MACHINE_START(REALVIEW_PBX, "ARM-RealView PBX") | |
387 | /* Maintainer: ARM Ltd/Deep Blue Solutions Ltd */ | |
9ddea57e | 388 | .atag_offset = 0x100, |
3695adc2 | 389 | .smp = smp_ops(realview_smp_ops), |
c97c5aa8 | 390 | .fixup = realview_pbx_fixup, |
1b504bbe | 391 | .map_io = realview_pbx_map_io, |
631e55f9 | 392 | .init_early = realview_init_early, |
1b504bbe | 393 | .init_irq = gic_init_irq, |
6bb27d73 | 394 | .init_time = realview_pbx_timer_init, |
1b504bbe | 395 | .init_machine = realview_pbx_init, |
00e9125e NP |
396 | #ifdef CONFIG_ZONE_DMA |
397 | .dma_zone_size = SZ_256M, | |
398 | #endif | |
47cacdd4 | 399 | .restart = realview_pbx_restart, |
1b504bbe | 400 | MACHINE_END |