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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> | |
25 | #include <linux/io.h> | |
26 | ||
27 | #include <asm/irq.h> | |
28 | #include <asm/leds.h> | |
29 | #include <asm/mach-types.h> | |
c3c21740 | 30 | #include <asm/smp_twd.h> |
1b504bbe CT |
31 | #include <asm/hardware/gic.h> |
32 | #include <asm/hardware/cache-l2x0.h> | |
33 | ||
34 | #include <asm/mach/arch.h> | |
35 | #include <asm/mach/map.h> | |
36 | #include <asm/mach/mmc.h> | |
37 | #include <asm/mach/time.h> | |
38 | ||
39 | #include <mach/hardware.h> | |
40 | #include <mach/board-pbx.h> | |
41 | #include <mach/irqs.h> | |
42 | ||
43 | #include "core.h" | |
44 | ||
45 | static struct map_desc realview_pbx_io_desc[] __initdata = { | |
46 | { | |
47 | .virtual = IO_ADDRESS(REALVIEW_SYS_BASE), | |
48 | .pfn = __phys_to_pfn(REALVIEW_SYS_BASE), | |
49 | .length = SZ_4K, | |
50 | .type = MT_DEVICE, | |
51 | }, { | |
52 | .virtual = IO_ADDRESS(REALVIEW_PBX_GIC_CPU_BASE), | |
53 | .pfn = __phys_to_pfn(REALVIEW_PBX_GIC_CPU_BASE), | |
54 | .length = SZ_4K, | |
55 | .type = MT_DEVICE, | |
56 | }, { | |
57 | .virtual = IO_ADDRESS(REALVIEW_PBX_GIC_DIST_BASE), | |
58 | .pfn = __phys_to_pfn(REALVIEW_PBX_GIC_DIST_BASE), | |
59 | .length = SZ_4K, | |
60 | .type = MT_DEVICE, | |
61 | }, { | |
62 | .virtual = IO_ADDRESS(REALVIEW_SCTL_BASE), | |
63 | .pfn = __phys_to_pfn(REALVIEW_SCTL_BASE), | |
64 | .length = SZ_4K, | |
65 | .type = MT_DEVICE, | |
66 | }, { | |
67 | .virtual = IO_ADDRESS(REALVIEW_PBX_TIMER0_1_BASE), | |
68 | .pfn = __phys_to_pfn(REALVIEW_PBX_TIMER0_1_BASE), | |
69 | .length = SZ_4K, | |
70 | .type = MT_DEVICE, | |
71 | }, { | |
72 | .virtual = IO_ADDRESS(REALVIEW_PBX_TIMER2_3_BASE), | |
73 | .pfn = __phys_to_pfn(REALVIEW_PBX_TIMER2_3_BASE), | |
74 | .length = SZ_4K, | |
75 | .type = MT_DEVICE, | |
76 | }, | |
77 | #ifdef CONFIG_PCI | |
78 | { | |
79 | .virtual = PCIX_UNIT_BASE, | |
80 | .pfn = __phys_to_pfn(REALVIEW_PBX_PCI_BASE), | |
81 | .length = REALVIEW_PBX_PCI_BASE_SIZE, | |
82 | .type = MT_DEVICE, | |
83 | }, | |
84 | #endif | |
85 | #ifdef CONFIG_DEBUG_LL | |
86 | { | |
87 | .virtual = IO_ADDRESS(REALVIEW_PBX_UART0_BASE), | |
88 | .pfn = __phys_to_pfn(REALVIEW_PBX_UART0_BASE), | |
89 | .length = SZ_4K, | |
90 | .type = MT_DEVICE, | |
91 | }, | |
92 | #endif | |
93 | }; | |
94 | ||
95 | static struct map_desc realview_local_io_desc[] __initdata = { | |
96 | { | |
97 | .virtual = IO_ADDRESS(REALVIEW_PBX_TILE_GIC_CPU_BASE), | |
98 | .pfn = __phys_to_pfn(REALVIEW_PBX_TILE_GIC_CPU_BASE), | |
99 | .length = SZ_4K, | |
100 | .type = MT_DEVICE, | |
101 | }, { | |
102 | .virtual = IO_ADDRESS(REALVIEW_PBX_TILE_GIC_DIST_BASE), | |
103 | .pfn = __phys_to_pfn(REALVIEW_PBX_TILE_GIC_DIST_BASE), | |
104 | .length = SZ_4K, | |
105 | .type = MT_DEVICE, | |
106 | }, { | |
107 | .virtual = IO_ADDRESS(REALVIEW_PBX_TILE_L220_BASE), | |
108 | .pfn = __phys_to_pfn(REALVIEW_PBX_TILE_L220_BASE), | |
109 | .length = SZ_8K, | |
110 | .type = MT_DEVICE, | |
111 | } | |
112 | }; | |
113 | ||
114 | static void __init realview_pbx_map_io(void) | |
115 | { | |
116 | iotable_init(realview_pbx_io_desc, ARRAY_SIZE(realview_pbx_io_desc)); | |
117 | if (core_tile_pbx11mp() || core_tile_pbxa9mp()) | |
118 | iotable_init(realview_local_io_desc, ARRAY_SIZE(realview_local_io_desc)); | |
119 | } | |
120 | ||
121 | /* | |
122 | * RealView PBXCore AMBA devices | |
123 | */ | |
124 | ||
125 | #define GPIO2_IRQ { IRQ_PBX_GPIO2, NO_IRQ } | |
126 | #define GPIO2_DMA { 0, 0 } | |
127 | #define GPIO3_IRQ { IRQ_PBX_GPIO3, NO_IRQ } | |
128 | #define GPIO3_DMA { 0, 0 } | |
129 | #define AACI_IRQ { IRQ_PBX_AACI, NO_IRQ } | |
130 | #define AACI_DMA { 0x80, 0x81 } | |
131 | #define MMCI0_IRQ { IRQ_PBX_MMCI0A, IRQ_PBX_MMCI0B } | |
132 | #define MMCI0_DMA { 0x84, 0 } | |
133 | #define KMI0_IRQ { IRQ_PBX_KMI0, NO_IRQ } | |
134 | #define KMI0_DMA { 0, 0 } | |
135 | #define KMI1_IRQ { IRQ_PBX_KMI1, NO_IRQ } | |
136 | #define KMI1_DMA { 0, 0 } | |
137 | #define PBX_SMC_IRQ { NO_IRQ, NO_IRQ } | |
138 | #define PBX_SMC_DMA { 0, 0 } | |
139 | #define MPMC_IRQ { NO_IRQ, NO_IRQ } | |
140 | #define MPMC_DMA { 0, 0 } | |
141 | #define PBX_CLCD_IRQ { IRQ_PBX_CLCD, NO_IRQ } | |
142 | #define PBX_CLCD_DMA { 0, 0 } | |
143 | #define DMAC_IRQ { IRQ_PBX_DMAC, NO_IRQ } | |
144 | #define DMAC_DMA { 0, 0 } | |
145 | #define SCTL_IRQ { NO_IRQ, NO_IRQ } | |
146 | #define SCTL_DMA { 0, 0 } | |
147 | #define PBX_WATCHDOG_IRQ { IRQ_PBX_WATCHDOG, NO_IRQ } | |
148 | #define PBX_WATCHDOG_DMA { 0, 0 } | |
149 | #define PBX_GPIO0_IRQ { IRQ_PBX_GPIO0, NO_IRQ } | |
150 | #define PBX_GPIO0_DMA { 0, 0 } | |
151 | #define GPIO1_IRQ { IRQ_PBX_GPIO1, NO_IRQ } | |
152 | #define GPIO1_DMA { 0, 0 } | |
153 | #define PBX_RTC_IRQ { IRQ_PBX_RTC, NO_IRQ } | |
154 | #define PBX_RTC_DMA { 0, 0 } | |
155 | #define SCI_IRQ { IRQ_PBX_SCI, NO_IRQ } | |
156 | #define SCI_DMA { 7, 6 } | |
157 | #define PBX_UART0_IRQ { IRQ_PBX_UART0, NO_IRQ } | |
158 | #define PBX_UART0_DMA { 15, 14 } | |
159 | #define PBX_UART1_IRQ { IRQ_PBX_UART1, NO_IRQ } | |
160 | #define PBX_UART1_DMA { 13, 12 } | |
161 | #define PBX_UART2_IRQ { IRQ_PBX_UART2, NO_IRQ } | |
162 | #define PBX_UART2_DMA { 11, 10 } | |
163 | #define PBX_UART3_IRQ { IRQ_PBX_UART3, NO_IRQ } | |
164 | #define PBX_UART3_DMA { 0x86, 0x87 } | |
165 | #define PBX_SSP_IRQ { IRQ_PBX_SSP, NO_IRQ } | |
166 | #define PBX_SSP_DMA { 9, 8 } | |
167 | ||
168 | /* FPGA Primecells */ | |
169 | AMBA_DEVICE(aaci, "fpga:04", AACI, NULL); | |
170 | AMBA_DEVICE(mmc0, "fpga:05", MMCI0, &realview_mmc0_plat_data); | |
171 | AMBA_DEVICE(kmi0, "fpga:06", KMI0, NULL); | |
172 | AMBA_DEVICE(kmi1, "fpga:07", KMI1, NULL); | |
173 | AMBA_DEVICE(uart3, "fpga:09", PBX_UART3, NULL); | |
174 | ||
175 | /* DevChip Primecells */ | |
176 | AMBA_DEVICE(smc, "dev:00", PBX_SMC, NULL); | |
177 | AMBA_DEVICE(sctl, "dev:e0", SCTL, NULL); | |
178 | AMBA_DEVICE(wdog, "dev:e1", PBX_WATCHDOG, NULL); | |
179 | AMBA_DEVICE(gpio0, "dev:e4", PBX_GPIO0, NULL); | |
180 | AMBA_DEVICE(gpio1, "dev:e5", GPIO1, NULL); | |
181 | AMBA_DEVICE(gpio2, "dev:e6", GPIO2, NULL); | |
182 | AMBA_DEVICE(rtc, "dev:e8", PBX_RTC, NULL); | |
183 | AMBA_DEVICE(sci0, "dev:f0", SCI, NULL); | |
184 | AMBA_DEVICE(uart0, "dev:f1", PBX_UART0, NULL); | |
185 | AMBA_DEVICE(uart1, "dev:f2", PBX_UART1, NULL); | |
186 | AMBA_DEVICE(uart2, "dev:f3", PBX_UART2, NULL); | |
187 | AMBA_DEVICE(ssp0, "dev:f4", PBX_SSP, NULL); | |
188 | ||
189 | /* Primecells on the NEC ISSP chip */ | |
190 | AMBA_DEVICE(clcd, "issp:20", PBX_CLCD, &clcd_plat_data); | |
191 | AMBA_DEVICE(dmac, "issp:30", DMAC, NULL); | |
192 | ||
193 | static struct amba_device *amba_devs[] __initdata = { | |
194 | &dmac_device, | |
195 | &uart0_device, | |
196 | &uart1_device, | |
197 | &uart2_device, | |
198 | &uart3_device, | |
199 | &smc_device, | |
200 | &clcd_device, | |
201 | &sctl_device, | |
202 | &wdog_device, | |
203 | &gpio0_device, | |
204 | &gpio1_device, | |
205 | &gpio2_device, | |
206 | &rtc_device, | |
207 | &sci0_device, | |
208 | &ssp0_device, | |
209 | &aaci_device, | |
210 | &mmc0_device, | |
211 | &kmi0_device, | |
212 | &kmi1_device, | |
213 | }; | |
214 | ||
215 | /* | |
216 | * RealView PB-X platform devices | |
217 | */ | |
218 | static struct resource realview_pbx_flash_resources[] = { | |
219 | [0] = { | |
220 | .start = REALVIEW_PBX_FLASH0_BASE, | |
221 | .end = REALVIEW_PBX_FLASH0_BASE + REALVIEW_PBX_FLASH0_SIZE - 1, | |
222 | .flags = IORESOURCE_MEM, | |
223 | }, | |
224 | [1] = { | |
225 | .start = REALVIEW_PBX_FLASH1_BASE, | |
226 | .end = REALVIEW_PBX_FLASH1_BASE + REALVIEW_PBX_FLASH1_SIZE - 1, | |
227 | .flags = IORESOURCE_MEM, | |
228 | }, | |
229 | }; | |
230 | ||
231 | static struct resource realview_pbx_smsc911x_resources[] = { | |
232 | [0] = { | |
233 | .start = REALVIEW_PBX_ETH_BASE, | |
234 | .end = REALVIEW_PBX_ETH_BASE + SZ_64K - 1, | |
235 | .flags = IORESOURCE_MEM, | |
236 | }, | |
237 | [1] = { | |
238 | .start = IRQ_PBX_ETH, | |
239 | .end = IRQ_PBX_ETH, | |
240 | .flags = IORESOURCE_IRQ, | |
241 | }, | |
242 | }; | |
243 | ||
244 | static struct resource realview_pbx_isp1761_resources[] = { | |
245 | [0] = { | |
246 | .start = REALVIEW_PBX_USB_BASE, | |
247 | .end = REALVIEW_PBX_USB_BASE + SZ_128K - 1, | |
248 | .flags = IORESOURCE_MEM, | |
249 | }, | |
250 | [1] = { | |
251 | .start = IRQ_PBX_USB, | |
252 | .end = IRQ_PBX_USB, | |
253 | .flags = IORESOURCE_IRQ, | |
254 | }, | |
255 | }; | |
256 | ||
257 | static void __init gic_init_irq(void) | |
258 | { | |
259 | /* ARM PBX on-board GIC */ | |
260 | if (core_tile_pbx11mp() || core_tile_pbxa9mp()) { | |
261 | gic_cpu_base_addr = __io_address(REALVIEW_PBX_TILE_GIC_CPU_BASE); | |
262 | gic_dist_init(0, __io_address(REALVIEW_PBX_TILE_GIC_DIST_BASE), | |
263 | 29); | |
264 | gic_cpu_init(0, __io_address(REALVIEW_PBX_TILE_GIC_CPU_BASE)); | |
265 | } else { | |
266 | gic_cpu_base_addr = __io_address(REALVIEW_PBX_GIC_CPU_BASE); | |
267 | gic_dist_init(0, __io_address(REALVIEW_PBX_GIC_DIST_BASE), | |
268 | IRQ_PBX_GIC_START); | |
269 | gic_cpu_init(0, __io_address(REALVIEW_PBX_GIC_CPU_BASE)); | |
270 | } | |
271 | } | |
272 | ||
273 | static void __init realview_pbx_timer_init(void) | |
274 | { | |
275 | timer0_va_base = __io_address(REALVIEW_PBX_TIMER0_1_BASE); | |
276 | timer1_va_base = __io_address(REALVIEW_PBX_TIMER0_1_BASE) + 0x20; | |
277 | timer2_va_base = __io_address(REALVIEW_PBX_TIMER2_3_BASE); | |
278 | timer3_va_base = __io_address(REALVIEW_PBX_TIMER2_3_BASE) + 0x20; | |
279 | ||
280 | #ifdef CONFIG_LOCAL_TIMERS | |
281 | if (core_tile_pbx11mp() || core_tile_pbxa9mp()) | |
282 | twd_base = __io_address(REALVIEW_PBX_TILE_TWD_BASE); | |
283 | #endif | |
284 | realview_timer_init(IRQ_PBX_TIMER0_1); | |
285 | } | |
286 | ||
287 | static struct sys_timer realview_pbx_timer = { | |
288 | .init = realview_pbx_timer_init, | |
289 | }; | |
290 | ||
291 | static void __init realview_pbx_init(void) | |
292 | { | |
293 | int i; | |
294 | ||
295 | #ifdef CONFIG_CACHE_L2X0 | |
296 | if (core_tile_pbxa9mp()) { | |
297 | void __iomem *l2x0_base = | |
298 | __io_address(REALVIEW_PBX_TILE_L220_BASE); | |
299 | ||
300 | /* set RAM latencies to 1 cycle for eASIC */ | |
301 | writel(0, l2x0_base + L2X0_TAG_LATENCY_CTRL); | |
302 | writel(0, l2x0_base + L2X0_DATA_LATENCY_CTRL); | |
303 | ||
304 | /* 16KB way size, 8-way associativity, parity disabled | |
305 | * Bits: .. 0 0 0 0 1 00 1 0 1 001 0 000 0 .... .... .... */ | |
306 | l2x0_init(l2x0_base, 0x02520000, 0xc0000fff); | |
307 | } | |
308 | #endif | |
309 | ||
310 | realview_flash_register(realview_pbx_flash_resources, | |
311 | ARRAY_SIZE(realview_pbx_flash_resources)); | |
312 | realview_eth_register(NULL, realview_pbx_smsc911x_resources); | |
313 | platform_device_register(&realview_i2c_device); | |
314 | platform_device_register(&realview_cf_device); | |
315 | realview_usb_register(realview_pbx_isp1761_resources); | |
316 | ||
317 | for (i = 0; i < ARRAY_SIZE(amba_devs); i++) { | |
318 | struct amba_device *d = amba_devs[i]; | |
319 | amba_device_register(d, &iomem_resource); | |
320 | } | |
321 | ||
322 | #ifdef CONFIG_LEDS | |
323 | leds_event = realview_leds_event; | |
324 | #endif | |
325 | } | |
326 | ||
327 | MACHINE_START(REALVIEW_PBX, "ARM-RealView PBX") | |
328 | /* Maintainer: ARM Ltd/Deep Blue Solutions Ltd */ | |
329 | .phys_io = REALVIEW_PBX_UART0_BASE, | |
330 | .io_pg_offst = (IO_ADDRESS(REALVIEW_PBX_UART0_BASE) >> 18) & 0xfffc, | |
331 | .boot_params = PHYS_OFFSET + 0x00000100, | |
332 | .map_io = realview_pbx_map_io, | |
333 | .init_irq = gic_init_irq, | |
334 | .timer = &realview_pbx_timer, | |
335 | .init_machine = realview_pbx_init, | |
336 | MACHINE_END |