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a0316b24 BB |
1 | /* |
2 | * linux/arch/arm/mach-realview/realview_pb1176.c | |
3 | * | |
4 | * Copyright (C) 2008 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 as published by | |
9 | * the Free Software Foundation; either version 2 of the License, or | |
10 | * (at your option) any later version. | |
11 | * | |
12 | * This program is distributed in the hope that it will be useful, | |
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | * GNU General Public License for more details. | |
16 | * | |
17 | * You should have received a copy of the GNU General Public License | |
18 | * along with this program; if not, write to the Free Software | |
19 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
20 | */ | |
21 | ||
22 | #include <linux/init.h> | |
23 | #include <linux/platform_device.h> | |
24 | #include <linux/sysdev.h> | |
25 | #include <linux/amba/bus.h> | |
eb7fffa3 | 26 | #include <linux/amba/pl061.h> |
6ef297f8 | 27 | #include <linux/amba/mmci.h> |
fced80c7 | 28 | #include <linux/io.h> |
a0316b24 | 29 | |
a09e64fb | 30 | #include <mach/hardware.h> |
a0316b24 BB |
31 | #include <asm/irq.h> |
32 | #include <asm/leds.h> | |
33 | #include <asm/mach-types.h> | |
f417cbad | 34 | #include <asm/pmu.h> |
a0316b24 | 35 | #include <asm/hardware/gic.h> |
a0316b24 BB |
36 | #include <asm/hardware/cache-l2x0.h> |
37 | ||
38 | #include <asm/mach/arch.h> | |
39 | #include <asm/mach/flash.h> | |
40 | #include <asm/mach/map.h> | |
a0316b24 BB |
41 | #include <asm/mach/time.h> |
42 | ||
a09e64fb RK |
43 | #include <mach/board-pb1176.h> |
44 | #include <mach/irqs.h> | |
a0316b24 BB |
45 | |
46 | #include "core.h" | |
a0316b24 BB |
47 | |
48 | static struct map_desc realview_pb1176_io_desc[] __initdata = { | |
49 | { | |
50 | .virtual = IO_ADDRESS(REALVIEW_SYS_BASE), | |
51 | .pfn = __phys_to_pfn(REALVIEW_SYS_BASE), | |
52 | .length = SZ_4K, | |
53 | .type = MT_DEVICE, | |
54 | }, { | |
55 | .virtual = IO_ADDRESS(REALVIEW_PB1176_GIC_CPU_BASE), | |
56 | .pfn = __phys_to_pfn(REALVIEW_PB1176_GIC_CPU_BASE), | |
57 | .length = SZ_4K, | |
58 | .type = MT_DEVICE, | |
59 | }, { | |
60 | .virtual = IO_ADDRESS(REALVIEW_PB1176_GIC_DIST_BASE), | |
61 | .pfn = __phys_to_pfn(REALVIEW_PB1176_GIC_DIST_BASE), | |
62 | .length = SZ_4K, | |
63 | .type = MT_DEVICE, | |
64 | }, { | |
65 | .virtual = IO_ADDRESS(REALVIEW_DC1176_GIC_CPU_BASE), | |
66 | .pfn = __phys_to_pfn(REALVIEW_DC1176_GIC_CPU_BASE), | |
67 | .length = SZ_4K, | |
68 | .type = MT_DEVICE, | |
69 | }, { | |
70 | .virtual = IO_ADDRESS(REALVIEW_DC1176_GIC_DIST_BASE), | |
71 | .pfn = __phys_to_pfn(REALVIEW_DC1176_GIC_DIST_BASE), | |
72 | .length = SZ_4K, | |
73 | .type = MT_DEVICE, | |
74 | }, { | |
75 | .virtual = IO_ADDRESS(REALVIEW_SCTL_BASE), | |
76 | .pfn = __phys_to_pfn(REALVIEW_SCTL_BASE), | |
77 | .length = SZ_4K, | |
78 | .type = MT_DEVICE, | |
79 | }, { | |
80 | .virtual = IO_ADDRESS(REALVIEW_PB1176_TIMER0_1_BASE), | |
81 | .pfn = __phys_to_pfn(REALVIEW_PB1176_TIMER0_1_BASE), | |
82 | .length = SZ_4K, | |
83 | .type = MT_DEVICE, | |
84 | }, { | |
85 | .virtual = IO_ADDRESS(REALVIEW_PB1176_TIMER2_3_BASE), | |
86 | .pfn = __phys_to_pfn(REALVIEW_PB1176_TIMER2_3_BASE), | |
87 | .length = SZ_4K, | |
88 | .type = MT_DEVICE, | |
89 | }, { | |
90 | .virtual = IO_ADDRESS(REALVIEW_PB1176_L220_BASE), | |
91 | .pfn = __phys_to_pfn(REALVIEW_PB1176_L220_BASE), | |
92 | .length = SZ_8K, | |
93 | .type = MT_DEVICE, | |
94 | }, | |
95 | #ifdef CONFIG_DEBUG_LL | |
96 | { | |
97 | .virtual = IO_ADDRESS(REALVIEW_PB1176_UART0_BASE), | |
98 | .pfn = __phys_to_pfn(REALVIEW_PB1176_UART0_BASE), | |
99 | .length = SZ_4K, | |
100 | .type = MT_DEVICE, | |
101 | }, | |
102 | #endif | |
103 | }; | |
104 | ||
105 | static void __init realview_pb1176_map_io(void) | |
106 | { | |
107 | iotable_init(realview_pb1176_io_desc, ARRAY_SIZE(realview_pb1176_io_desc)); | |
108 | } | |
109 | ||
eb7fffa3 RK |
110 | static struct pl061_platform_data gpio0_plat_data = { |
111 | .gpio_base = 0, | |
112 | .irq_base = -1, | |
113 | }; | |
114 | ||
115 | static struct pl061_platform_data gpio1_plat_data = { | |
116 | .gpio_base = 8, | |
117 | .irq_base = -1, | |
118 | }; | |
119 | ||
120 | static struct pl061_platform_data gpio2_plat_data = { | |
121 | .gpio_base = 16, | |
122 | .irq_base = -1, | |
123 | }; | |
124 | ||
a0316b24 BB |
125 | /* |
126 | * RealView PB1176 AMBA devices | |
127 | */ | |
128 | #define GPIO2_IRQ { IRQ_PB1176_GPIO2, NO_IRQ } | |
129 | #define GPIO2_DMA { 0, 0 } | |
130 | #define GPIO3_IRQ { IRQ_PB1176_GPIO3, NO_IRQ } | |
131 | #define GPIO3_DMA { 0, 0 } | |
132 | #define AACI_IRQ { IRQ_PB1176_AACI, NO_IRQ } | |
133 | #define AACI_DMA { 0x80, 0x81 } | |
134 | #define MMCI0_IRQ { IRQ_PB1176_MMCI0A, IRQ_PB1176_MMCI0B } | |
135 | #define MMCI0_DMA { 0x84, 0 } | |
136 | #define KMI0_IRQ { IRQ_PB1176_KMI0, NO_IRQ } | |
137 | #define KMI0_DMA { 0, 0 } | |
138 | #define KMI1_IRQ { IRQ_PB1176_KMI1, NO_IRQ } | |
139 | #define KMI1_DMA { 0, 0 } | |
140 | #define PB1176_SMC_IRQ { NO_IRQ, NO_IRQ } | |
141 | #define PB1176_SMC_DMA { 0, 0 } | |
142 | #define MPMC_IRQ { NO_IRQ, NO_IRQ } | |
143 | #define MPMC_DMA { 0, 0 } | |
144 | #define PB1176_CLCD_IRQ { IRQ_DC1176_CLCD, NO_IRQ } | |
145 | #define PB1176_CLCD_DMA { 0, 0 } | |
146 | #define DMAC_IRQ { IRQ_PB1176_DMAC, NO_IRQ } | |
147 | #define DMAC_DMA { 0, 0 } | |
148 | #define SCTL_IRQ { NO_IRQ, NO_IRQ } | |
149 | #define SCTL_DMA { 0, 0 } | |
150 | #define PB1176_WATCHDOG_IRQ { IRQ_DC1176_WATCHDOG, NO_IRQ } | |
151 | #define PB1176_WATCHDOG_DMA { 0, 0 } | |
152 | #define PB1176_GPIO0_IRQ { IRQ_PB1176_GPIO0, NO_IRQ } | |
153 | #define PB1176_GPIO0_DMA { 0, 0 } | |
154 | #define GPIO1_IRQ { IRQ_PB1176_GPIO1, NO_IRQ } | |
155 | #define GPIO1_DMA { 0, 0 } | |
156 | #define PB1176_RTC_IRQ { IRQ_DC1176_RTC, NO_IRQ } | |
157 | #define PB1176_RTC_DMA { 0, 0 } | |
158 | #define SCI_IRQ { IRQ_PB1176_SCI, NO_IRQ } | |
159 | #define SCI_DMA { 7, 6 } | |
160 | #define PB1176_UART0_IRQ { IRQ_DC1176_UART0, NO_IRQ } | |
161 | #define PB1176_UART0_DMA { 15, 14 } | |
162 | #define PB1176_UART1_IRQ { IRQ_DC1176_UART1, NO_IRQ } | |
163 | #define PB1176_UART1_DMA { 13, 12 } | |
164 | #define PB1176_UART2_IRQ { IRQ_DC1176_UART2, NO_IRQ } | |
165 | #define PB1176_UART2_DMA { 11, 10 } | |
166 | #define PB1176_UART3_IRQ { IRQ_DC1176_UART3, NO_IRQ } | |
167 | #define PB1176_UART3_DMA { 0x86, 0x87 } | |
168 | #define PB1176_SSP_IRQ { IRQ_PB1176_SSP, NO_IRQ } | |
169 | #define PB1176_SSP_DMA { 9, 8 } | |
170 | ||
171 | /* FPGA Primecells */ | |
4321532c LW |
172 | AMBA_DEVICE(aaci, "fpga:aaci", AACI, NULL); |
173 | AMBA_DEVICE(mmc0, "fpga:mmc0", MMCI0, &realview_mmc0_plat_data); | |
174 | AMBA_DEVICE(kmi0, "fpga:kmi0", KMI0, NULL); | |
175 | AMBA_DEVICE(kmi1, "fpga:kmi1", KMI1, NULL); | |
176 | AMBA_DEVICE(uart3, "fpga:uart3", PB1176_UART3, NULL); | |
a0316b24 BB |
177 | |
178 | /* DevChip Primecells */ | |
4321532c LW |
179 | AMBA_DEVICE(smc, "dev:smc", PB1176_SMC, NULL); |
180 | AMBA_DEVICE(sctl, "dev:sctl", SCTL, NULL); | |
181 | AMBA_DEVICE(wdog, "dev:wdog", PB1176_WATCHDOG, NULL); | |
182 | AMBA_DEVICE(gpio0, "dev:gpio0", PB1176_GPIO0, &gpio0_plat_data); | |
183 | AMBA_DEVICE(gpio1, "dev:gpio1", GPIO1, &gpio1_plat_data); | |
184 | AMBA_DEVICE(gpio2, "dev:gpio2", GPIO2, &gpio2_plat_data); | |
185 | AMBA_DEVICE(rtc, "dev:rtc", PB1176_RTC, NULL); | |
186 | AMBA_DEVICE(sci0, "dev:sci0", SCI, NULL); | |
187 | AMBA_DEVICE(uart0, "dev:uart0", PB1176_UART0, NULL); | |
188 | AMBA_DEVICE(uart1, "dev:uart1", PB1176_UART1, NULL); | |
189 | AMBA_DEVICE(uart2, "dev:uart2", PB1176_UART2, NULL); | |
190 | AMBA_DEVICE(ssp0, "dev:ssp0", PB1176_SSP, NULL); | |
a0316b24 BB |
191 | |
192 | /* Primecells on the NEC ISSP chip */ | |
4321532c LW |
193 | AMBA_DEVICE(clcd, "issp:clcd", PB1176_CLCD, &clcd_plat_data); |
194 | //AMBA_DEVICE(dmac, "issp:dmac", PB1176_DMAC, NULL); | |
a0316b24 BB |
195 | |
196 | static struct amba_device *amba_devs[] __initdata = { | |
197 | // &dmac_device, | |
198 | &uart0_device, | |
199 | &uart1_device, | |
200 | &uart2_device, | |
201 | &uart3_device, | |
202 | &smc_device, | |
203 | &clcd_device, | |
204 | &sctl_device, | |
205 | &wdog_device, | |
206 | &gpio0_device, | |
207 | &gpio1_device, | |
208 | &gpio2_device, | |
209 | &rtc_device, | |
210 | &sci0_device, | |
211 | &ssp0_device, | |
212 | &aaci_device, | |
213 | &mmc0_device, | |
214 | &kmi0_device, | |
215 | &kmi1_device, | |
216 | }; | |
217 | ||
218 | /* | |
219 | * RealView PB1176 platform devices | |
220 | */ | |
af607747 CM |
221 | static struct resource realview_pb1176_flash_resources[] = { |
222 | [0] = { | |
223 | .start = REALVIEW_PB1176_FLASH_BASE, | |
224 | .end = REALVIEW_PB1176_FLASH_BASE + REALVIEW_PB1176_FLASH_SIZE - 1, | |
225 | .flags = IORESOURCE_MEM, | |
226 | }, | |
227 | [1] = { | |
228 | .start = REALVIEW_PB1176_SEC_FLASH_BASE, | |
229 | .end = REALVIEW_PB1176_SEC_FLASH_BASE + REALVIEW_PB1176_SEC_FLASH_SIZE - 1, | |
230 | .flags = IORESOURCE_MEM, | |
231 | }, | |
a0316b24 | 232 | }; |
af607747 CM |
233 | #ifdef CONFIG_REALVIEW_PB1176_SECURE_FLASH |
234 | #define PB1176_FLASH_BLOCKS 2 | |
235 | #else | |
236 | #define PB1176_FLASH_BLOCKS 1 | |
237 | #endif | |
a0316b24 BB |
238 | |
239 | static struct resource realview_pb1176_smsc911x_resources[] = { | |
240 | [0] = { | |
241 | .start = REALVIEW_PB1176_ETH_BASE, | |
242 | .end = REALVIEW_PB1176_ETH_BASE + SZ_64K - 1, | |
243 | .flags = IORESOURCE_MEM, | |
244 | }, | |
245 | [1] = { | |
246 | .start = IRQ_PB1176_ETH, | |
247 | .end = IRQ_PB1176_ETH, | |
248 | .flags = IORESOURCE_IRQ, | |
249 | }, | |
250 | }; | |
251 | ||
7db21712 CM |
252 | static struct resource realview_pb1176_isp1761_resources[] = { |
253 | [0] = { | |
254 | .start = REALVIEW_PB1176_USB_BASE, | |
255 | .end = REALVIEW_PB1176_USB_BASE + SZ_128K - 1, | |
256 | .flags = IORESOURCE_MEM, | |
257 | }, | |
258 | [1] = { | |
259 | .start = IRQ_PB1176_USB, | |
260 | .end = IRQ_PB1176_USB, | |
261 | .flags = IORESOURCE_IRQ, | |
262 | }, | |
263 | }; | |
264 | ||
f417cbad WD |
265 | static struct resource pmu_resource = { |
266 | .start = IRQ_DC1176_CORE_PMU, | |
267 | .end = IRQ_DC1176_CORE_PMU, | |
268 | .flags = IORESOURCE_IRQ, | |
269 | }; | |
270 | ||
271 | static struct platform_device pmu_device = { | |
272 | .name = "arm-pmu", | |
273 | .id = ARM_PMU_DEVICE_CPU, | |
274 | .num_resources = 1, | |
275 | .resource = &pmu_resource, | |
276 | }; | |
277 | ||
a0316b24 BB |
278 | static void __init gic_init_irq(void) |
279 | { | |
280 | /* ARM1176 DevChip GIC, primary */ | |
281 | gic_cpu_base_addr = __io_address(REALVIEW_DC1176_GIC_CPU_BASE); | |
282 | gic_dist_init(0, __io_address(REALVIEW_DC1176_GIC_DIST_BASE), IRQ_DC1176_GIC_START); | |
283 | gic_cpu_init(0, gic_cpu_base_addr); | |
284 | ||
285 | /* board GIC, secondary */ | |
286 | gic_dist_init(1, __io_address(REALVIEW_PB1176_GIC_DIST_BASE), IRQ_PB1176_GIC_START); | |
287 | gic_cpu_init(1, __io_address(REALVIEW_PB1176_GIC_CPU_BASE)); | |
288 | gic_cascade_irq(1, IRQ_DC1176_PB_IRQ1); | |
289 | } | |
290 | ||
291 | static void __init realview_pb1176_timer_init(void) | |
292 | { | |
293 | timer0_va_base = __io_address(REALVIEW_PB1176_TIMER0_1_BASE); | |
294 | timer1_va_base = __io_address(REALVIEW_PB1176_TIMER0_1_BASE) + 0x20; | |
295 | timer2_va_base = __io_address(REALVIEW_PB1176_TIMER2_3_BASE); | |
296 | timer3_va_base = __io_address(REALVIEW_PB1176_TIMER2_3_BASE) + 0x20; | |
297 | ||
298 | realview_timer_init(IRQ_DC1176_TIMER0); | |
299 | } | |
300 | ||
301 | static struct sys_timer realview_pb1176_timer = { | |
302 | .init = realview_pb1176_timer_init, | |
303 | }; | |
304 | ||
426fcd2a PJ |
305 | static void realview_pb1176_reset(char mode) |
306 | { | |
4c9f8be7 CT |
307 | void __iomem *reset_ctrl = __io_address(REALVIEW_SYS_RESETCTL); |
308 | void __iomem *lock_ctrl = __io_address(REALVIEW_SYS_LOCK); | |
309 | __raw_writel(REALVIEW_SYS_LOCK_VAL, lock_ctrl); | |
310 | __raw_writel(REALVIEW_PB1176_SYS_SOFT_RESET, reset_ctrl); | |
426fcd2a PJ |
311 | } |
312 | ||
5b39d154 CM |
313 | static void realview_pb1176_fixup(struct machine_desc *mdesc, |
314 | struct tag *tags, char **from, | |
315 | struct meminfo *meminfo) | |
316 | { | |
317 | /* | |
318 | * RealView PB1176 only has 128MB of RAM mapped at 0. | |
319 | */ | |
320 | meminfo->bank[0].start = 0; | |
321 | meminfo->bank[0].size = SZ_128M; | |
322 | meminfo->nr_banks = 1; | |
323 | } | |
324 | ||
a0316b24 BB |
325 | static void __init realview_pb1176_init(void) |
326 | { | |
327 | int i; | |
328 | ||
ba927951 | 329 | #ifdef CONFIG_CACHE_L2X0 |
a0316b24 BB |
330 | /* 128Kb (16Kb/way) 8-way associativity. evmon/parity/share enabled. */ |
331 | l2x0_init(__io_address(REALVIEW_PB1176_L220_BASE), 0x00730000, 0xfe000fff); | |
ba927951 | 332 | #endif |
a0316b24 | 333 | |
af607747 CM |
334 | realview_flash_register(realview_pb1176_flash_resources, |
335 | PB1176_FLASH_BLOCKS); | |
0a381330 | 336 | realview_eth_register(NULL, realview_pb1176_smsc911x_resources); |
533ad5e6 | 337 | platform_device_register(&realview_i2c_device); |
7db21712 | 338 | realview_usb_register(realview_pb1176_isp1761_resources); |
f417cbad | 339 | platform_device_register(&pmu_device); |
a0316b24 BB |
340 | |
341 | for (i = 0; i < ARRAY_SIZE(amba_devs); i++) { | |
342 | struct amba_device *d = amba_devs[i]; | |
343 | amba_device_register(d, &iomem_resource); | |
344 | } | |
345 | ||
346 | #ifdef CONFIG_LEDS | |
347 | leds_event = realview_leds_event; | |
348 | #endif | |
426fcd2a | 349 | realview_reset = realview_pb1176_reset; |
a0316b24 BB |
350 | } |
351 | ||
352 | MACHINE_START(REALVIEW_PB1176, "ARM-RealView PB1176") | |
353 | /* Maintainer: ARM Ltd/Deep Blue Solutions Ltd */ | |
354 | .phys_io = REALVIEW_PB1176_UART0_BASE, | |
355 | .io_pg_offst = (IO_ADDRESS(REALVIEW_PB1176_UART0_BASE) >> 18) & 0xfffc, | |
70bb62f8 | 356 | .boot_params = PHYS_OFFSET + 0x00000100, |
5b39d154 | 357 | .fixup = realview_pb1176_fixup, |
a0316b24 BB |
358 | .map_io = realview_pb1176_map_io, |
359 | .init_irq = gic_init_irq, | |
360 | .timer = &realview_pb1176_timer, | |
361 | .init_machine = realview_pb1176_init, | |
362 | MACHINE_END |