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e7c70825 BB |
1 | /* |
2 | * linux/arch/arm/mach-realview/realview_pba8.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> |
d6ada860 | 28 | #include <linux/amba/pl022.h> |
e7c70825 BB |
29 | #include <linux/io.h> |
30 | ||
31 | #include <asm/irq.h> | |
32 | #include <asm/leds.h> | |
33 | #include <asm/mach-types.h> | |
f417cbad | 34 | #include <asm/pmu.h> |
cc9897df | 35 | #include <asm/pgtable.h> |
e7c70825 | 36 | #include <asm/hardware/gic.h> |
e7c70825 BB |
37 | |
38 | #include <asm/mach/arch.h> | |
39 | #include <asm/mach/map.h> | |
e7c70825 BB |
40 | #include <asm/mach/time.h> |
41 | ||
42 | #include <mach/hardware.h> | |
43 | #include <mach/board-pba8.h> | |
44 | #include <mach/irqs.h> | |
45 | ||
46 | #include "core.h" | |
e7c70825 BB |
47 | |
48 | static struct map_desc realview_pba8_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_PBA8_GIC_CPU_BASE), | |
56 | .pfn = __phys_to_pfn(REALVIEW_PBA8_GIC_CPU_BASE), | |
57 | .length = SZ_4K, | |
58 | .type = MT_DEVICE, | |
59 | }, { | |
60 | .virtual = IO_ADDRESS(REALVIEW_PBA8_GIC_DIST_BASE), | |
61 | .pfn = __phys_to_pfn(REALVIEW_PBA8_GIC_DIST_BASE), | |
62 | .length = SZ_4K, | |
63 | .type = MT_DEVICE, | |
64 | }, { | |
65 | .virtual = IO_ADDRESS(REALVIEW_SCTL_BASE), | |
66 | .pfn = __phys_to_pfn(REALVIEW_SCTL_BASE), | |
67 | .length = SZ_4K, | |
68 | .type = MT_DEVICE, | |
69 | }, { | |
70 | .virtual = IO_ADDRESS(REALVIEW_PBA8_TIMER0_1_BASE), | |
71 | .pfn = __phys_to_pfn(REALVIEW_PBA8_TIMER0_1_BASE), | |
72 | .length = SZ_4K, | |
73 | .type = MT_DEVICE, | |
74 | }, { | |
75 | .virtual = IO_ADDRESS(REALVIEW_PBA8_TIMER2_3_BASE), | |
76 | .pfn = __phys_to_pfn(REALVIEW_PBA8_TIMER2_3_BASE), | |
77 | .length = SZ_4K, | |
78 | .type = MT_DEVICE, | |
79 | }, | |
80 | #ifdef CONFIG_PCI | |
81 | { | |
82 | .virtual = PCIX_UNIT_BASE, | |
83 | .pfn = __phys_to_pfn(REALVIEW_PBA8_PCI_BASE), | |
84 | .length = REALVIEW_PBA8_PCI_BASE_SIZE, | |
85 | .type = MT_DEVICE | |
86 | }, | |
87 | #endif | |
88 | #ifdef CONFIG_DEBUG_LL | |
89 | { | |
90 | .virtual = IO_ADDRESS(REALVIEW_PBA8_UART0_BASE), | |
91 | .pfn = __phys_to_pfn(REALVIEW_PBA8_UART0_BASE), | |
92 | .length = SZ_4K, | |
93 | .type = MT_DEVICE, | |
94 | }, | |
95 | #endif | |
96 | }; | |
97 | ||
98 | static void __init realview_pba8_map_io(void) | |
99 | { | |
100 | iotable_init(realview_pba8_io_desc, ARRAY_SIZE(realview_pba8_io_desc)); | |
101 | } | |
102 | ||
eb7fffa3 RK |
103 | static struct pl061_platform_data gpio0_plat_data = { |
104 | .gpio_base = 0, | |
105 | .irq_base = -1, | |
106 | }; | |
107 | ||
108 | static struct pl061_platform_data gpio1_plat_data = { | |
109 | .gpio_base = 8, | |
110 | .irq_base = -1, | |
111 | }; | |
112 | ||
113 | static struct pl061_platform_data gpio2_plat_data = { | |
114 | .gpio_base = 16, | |
115 | .irq_base = -1, | |
116 | }; | |
117 | ||
d6ada860 LW |
118 | static struct pl022_ssp_controller ssp0_plat_data = { |
119 | .bus_id = 0, | |
120 | .enable_dma = 0, | |
121 | .num_chipselect = 1, | |
122 | }; | |
123 | ||
e7c70825 BB |
124 | /* |
125 | * RealView PBA8Core AMBA devices | |
126 | */ | |
127 | ||
128 | #define GPIO2_IRQ { IRQ_PBA8_GPIO2, NO_IRQ } | |
e7c70825 | 129 | #define GPIO3_IRQ { IRQ_PBA8_GPIO3, NO_IRQ } |
e7c70825 | 130 | #define AACI_IRQ { IRQ_PBA8_AACI, NO_IRQ } |
e7c70825 | 131 | #define MMCI0_IRQ { IRQ_PBA8_MMCI0A, IRQ_PBA8_MMCI0B } |
e7c70825 | 132 | #define KMI0_IRQ { IRQ_PBA8_KMI0, NO_IRQ } |
e7c70825 | 133 | #define KMI1_IRQ { IRQ_PBA8_KMI1, NO_IRQ } |
e7c70825 | 134 | #define PBA8_SMC_IRQ { NO_IRQ, NO_IRQ } |
e7c70825 | 135 | #define MPMC_IRQ { NO_IRQ, NO_IRQ } |
e7c70825 | 136 | #define PBA8_CLCD_IRQ { IRQ_PBA8_CLCD, NO_IRQ } |
e7c70825 | 137 | #define DMAC_IRQ { IRQ_PBA8_DMAC, NO_IRQ } |
e7c70825 | 138 | #define SCTL_IRQ { NO_IRQ, NO_IRQ } |
e7c70825 | 139 | #define PBA8_WATCHDOG_IRQ { IRQ_PBA8_WATCHDOG, NO_IRQ } |
e7c70825 | 140 | #define PBA8_GPIO0_IRQ { IRQ_PBA8_GPIO0, NO_IRQ } |
e7c70825 | 141 | #define GPIO1_IRQ { IRQ_PBA8_GPIO1, NO_IRQ } |
e7c70825 | 142 | #define PBA8_RTC_IRQ { IRQ_PBA8_RTC, NO_IRQ } |
e7c70825 | 143 | #define SCI_IRQ { IRQ_PBA8_SCI, NO_IRQ } |
e7c70825 | 144 | #define PBA8_UART0_IRQ { IRQ_PBA8_UART0, NO_IRQ } |
e7c70825 | 145 | #define PBA8_UART1_IRQ { IRQ_PBA8_UART1, NO_IRQ } |
e7c70825 | 146 | #define PBA8_UART2_IRQ { IRQ_PBA8_UART2, NO_IRQ } |
e7c70825 | 147 | #define PBA8_UART3_IRQ { IRQ_PBA8_UART3, NO_IRQ } |
e7c70825 | 148 | #define PBA8_SSP_IRQ { IRQ_PBA8_SSP, NO_IRQ } |
e7c70825 BB |
149 | |
150 | /* FPGA Primecells */ | |
4321532c LW |
151 | AMBA_DEVICE(aaci, "fpga:aaci", AACI, NULL); |
152 | AMBA_DEVICE(mmc0, "fpga:mmc0", MMCI0, &realview_mmc0_plat_data); | |
153 | AMBA_DEVICE(kmi0, "fpga:kmi0", KMI0, NULL); | |
154 | AMBA_DEVICE(kmi1, "fpga:kmi1", KMI1, NULL); | |
155 | AMBA_DEVICE(uart3, "fpga:uart3", PBA8_UART3, NULL); | |
e7c70825 BB |
156 | |
157 | /* DevChip Primecells */ | |
4321532c LW |
158 | AMBA_DEVICE(smc, "dev:smc", PBA8_SMC, NULL); |
159 | AMBA_DEVICE(sctl, "dev:sctl", SCTL, NULL); | |
160 | AMBA_DEVICE(wdog, "dev:wdog", PBA8_WATCHDOG, NULL); | |
161 | AMBA_DEVICE(gpio0, "dev:gpio0", PBA8_GPIO0, &gpio0_plat_data); | |
162 | AMBA_DEVICE(gpio1, "dev:gpio1", GPIO1, &gpio1_plat_data); | |
163 | AMBA_DEVICE(gpio2, "dev:gpio2", GPIO2, &gpio2_plat_data); | |
164 | AMBA_DEVICE(rtc, "dev:rtc", PBA8_RTC, NULL); | |
165 | AMBA_DEVICE(sci0, "dev:sci0", SCI, NULL); | |
166 | AMBA_DEVICE(uart0, "dev:uart0", PBA8_UART0, NULL); | |
167 | AMBA_DEVICE(uart1, "dev:uart1", PBA8_UART1, NULL); | |
168 | AMBA_DEVICE(uart2, "dev:uart2", PBA8_UART2, NULL); | |
d6ada860 | 169 | AMBA_DEVICE(ssp0, "dev:ssp0", PBA8_SSP, &ssp0_plat_data); |
e7c70825 BB |
170 | |
171 | /* Primecells on the NEC ISSP chip */ | |
4321532c LW |
172 | AMBA_DEVICE(clcd, "issp:clcd", PBA8_CLCD, &clcd_plat_data); |
173 | AMBA_DEVICE(dmac, "issp:dmac", DMAC, NULL); | |
e7c70825 BB |
174 | |
175 | static struct amba_device *amba_devs[] __initdata = { | |
176 | &dmac_device, | |
177 | &uart0_device, | |
178 | &uart1_device, | |
179 | &uart2_device, | |
180 | &uart3_device, | |
181 | &smc_device, | |
182 | &clcd_device, | |
183 | &sctl_device, | |
184 | &wdog_device, | |
185 | &gpio0_device, | |
186 | &gpio1_device, | |
187 | &gpio2_device, | |
188 | &rtc_device, | |
189 | &sci0_device, | |
190 | &ssp0_device, | |
191 | &aaci_device, | |
192 | &mmc0_device, | |
193 | &kmi0_device, | |
194 | &kmi1_device, | |
195 | }; | |
196 | ||
197 | /* | |
198 | * RealView PB-A8 platform devices | |
199 | */ | |
200 | static struct resource realview_pba8_flash_resource[] = { | |
201 | [0] = { | |
202 | .start = REALVIEW_PBA8_FLASH0_BASE, | |
203 | .end = REALVIEW_PBA8_FLASH0_BASE + REALVIEW_PBA8_FLASH0_SIZE - 1, | |
204 | .flags = IORESOURCE_MEM, | |
205 | }, | |
206 | [1] = { | |
207 | .start = REALVIEW_PBA8_FLASH1_BASE, | |
208 | .end = REALVIEW_PBA8_FLASH1_BASE + REALVIEW_PBA8_FLASH1_SIZE - 1, | |
209 | .flags = IORESOURCE_MEM, | |
210 | }, | |
211 | }; | |
212 | ||
213 | static struct resource realview_pba8_smsc911x_resources[] = { | |
214 | [0] = { | |
215 | .start = REALVIEW_PBA8_ETH_BASE, | |
216 | .end = REALVIEW_PBA8_ETH_BASE + SZ_64K - 1, | |
217 | .flags = IORESOURCE_MEM, | |
218 | }, | |
219 | [1] = { | |
220 | .start = IRQ_PBA8_ETH, | |
221 | .end = IRQ_PBA8_ETH, | |
222 | .flags = IORESOURCE_IRQ, | |
223 | }, | |
224 | }; | |
225 | ||
7db21712 CM |
226 | static struct resource realview_pba8_isp1761_resources[] = { |
227 | [0] = { | |
228 | .start = REALVIEW_PBA8_USB_BASE, | |
229 | .end = REALVIEW_PBA8_USB_BASE + SZ_128K - 1, | |
230 | .flags = IORESOURCE_MEM, | |
231 | }, | |
232 | [1] = { | |
233 | .start = IRQ_PBA8_USB, | |
234 | .end = IRQ_PBA8_USB, | |
235 | .flags = IORESOURCE_IRQ, | |
236 | }, | |
237 | }; | |
238 | ||
f417cbad WD |
239 | static struct resource pmu_resource = { |
240 | .start = IRQ_PBA8_PMU, | |
241 | .end = IRQ_PBA8_PMU, | |
242 | .flags = IORESOURCE_IRQ, | |
243 | }; | |
244 | ||
245 | static struct platform_device pmu_device = { | |
246 | .name = "arm-pmu", | |
247 | .id = ARM_PMU_DEVICE_CPU, | |
248 | .num_resources = 1, | |
249 | .resource = &pmu_resource, | |
250 | }; | |
251 | ||
e7c70825 BB |
252 | static void __init gic_init_irq(void) |
253 | { | |
254 | /* ARM PB-A8 on-board GIC */ | |
b580b899 RK |
255 | gic_init(0, IRQ_PBA8_GIC_START, |
256 | __io_address(REALVIEW_PBA8_GIC_DIST_BASE), | |
257 | __io_address(REALVIEW_PBA8_GIC_CPU_BASE)); | |
e7c70825 BB |
258 | } |
259 | ||
260 | static void __init realview_pba8_timer_init(void) | |
261 | { | |
262 | timer0_va_base = __io_address(REALVIEW_PBA8_TIMER0_1_BASE); | |
263 | timer1_va_base = __io_address(REALVIEW_PBA8_TIMER0_1_BASE) + 0x20; | |
264 | timer2_va_base = __io_address(REALVIEW_PBA8_TIMER2_3_BASE); | |
265 | timer3_va_base = __io_address(REALVIEW_PBA8_TIMER2_3_BASE) + 0x20; | |
266 | ||
267 | realview_timer_init(IRQ_PBA8_TIMER0_1); | |
268 | } | |
269 | ||
270 | static struct sys_timer realview_pba8_timer = { | |
271 | .init = realview_pba8_timer_init, | |
272 | }; | |
273 | ||
4c9f8be7 CT |
274 | static void realview_pba8_reset(char mode) |
275 | { | |
276 | void __iomem *reset_ctrl = __io_address(REALVIEW_SYS_RESETCTL); | |
277 | void __iomem *lock_ctrl = __io_address(REALVIEW_SYS_LOCK); | |
278 | ||
279 | /* | |
280 | * To reset, we hit the on-board reset register | |
281 | * in the system FPGA | |
282 | */ | |
283 | __raw_writel(REALVIEW_SYS_LOCK_VAL, lock_ctrl); | |
284 | __raw_writel(0x0000, reset_ctrl); | |
285 | __raw_writel(0x0004, reset_ctrl); | |
286 | } | |
287 | ||
e7c70825 BB |
288 | static void __init realview_pba8_init(void) |
289 | { | |
290 | int i; | |
291 | ||
292 | realview_flash_register(realview_pba8_flash_resource, | |
293 | ARRAY_SIZE(realview_pba8_flash_resource)); | |
0a381330 | 294 | realview_eth_register(NULL, realview_pba8_smsc911x_resources); |
e7c70825 | 295 | platform_device_register(&realview_i2c_device); |
6be62ba2 | 296 | platform_device_register(&realview_cf_device); |
7db21712 | 297 | realview_usb_register(realview_pba8_isp1761_resources); |
f417cbad | 298 | platform_device_register(&pmu_device); |
e7c70825 BB |
299 | |
300 | for (i = 0; i < ARRAY_SIZE(amba_devs); i++) { | |
301 | struct amba_device *d = amba_devs[i]; | |
302 | amba_device_register(d, &iomem_resource); | |
303 | } | |
304 | ||
305 | #ifdef CONFIG_LEDS | |
306 | leds_event = realview_leds_event; | |
307 | #endif | |
4c9f8be7 | 308 | realview_reset = realview_pba8_reset; |
e7c70825 BB |
309 | } |
310 | ||
311 | MACHINE_START(REALVIEW_PBA8, "ARM-RealView PB-A8") | |
312 | /* Maintainer: ARM Ltd/Deep Blue Solutions Ltd */ | |
b75c178a | 313 | .boot_params = PLAT_PHYS_OFFSET + 0x00000100, |
5b39d154 | 314 | .fixup = realview_fixup, |
e7c70825 | 315 | .map_io = realview_pba8_map_io, |
631e55f9 | 316 | .init_early = realview_init_early, |
e7c70825 BB |
317 | .init_irq = gic_init_irq, |
318 | .timer = &realview_pba8_timer, | |
319 | .init_machine = realview_pba8_init, | |
00e9125e NP |
320 | #ifdef CONFIG_ZONE_DMA |
321 | .dma_zone_size = SZ_256M, | |
322 | #endif | |
e7c70825 | 323 | MACHINE_END |