Merge branch 'bkl/procfs' of git://git.kernel.org/pub/scm/linux/kernel/git/frederic...
[linux-2.6-block.git] / arch / arm / mach-realview / realview_pb1176.c
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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>
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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>
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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>
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41#include <asm/mach/time.h>
42
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43#include <mach/board-pb1176.h>
44#include <mach/irqs.h>
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45
46#include "core.h"
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47
48static 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
105static void __init realview_pb1176_map_io(void)
106{
107 iotable_init(realview_pb1176_io_desc, ARRAY_SIZE(realview_pb1176_io_desc));
108}
109
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110static struct pl061_platform_data gpio0_plat_data = {
111 .gpio_base = 0,
112 .irq_base = -1,
113};
114
115static struct pl061_platform_data gpio1_plat_data = {
116 .gpio_base = 8,
117 .irq_base = -1,
118};
119
120static struct pl061_platform_data gpio2_plat_data = {
121 .gpio_base = 16,
122 .irq_base = -1,
123};
124
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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 */
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172AMBA_DEVICE(aaci, "fpga:aaci", AACI, NULL);
173AMBA_DEVICE(mmc0, "fpga:mmc0", MMCI0, &realview_mmc0_plat_data);
174AMBA_DEVICE(kmi0, "fpga:kmi0", KMI0, NULL);
175AMBA_DEVICE(kmi1, "fpga:kmi1", KMI1, NULL);
176AMBA_DEVICE(uart3, "fpga:uart3", PB1176_UART3, NULL);
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177
178/* DevChip Primecells */
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179AMBA_DEVICE(smc, "dev:smc", PB1176_SMC, NULL);
180AMBA_DEVICE(sctl, "dev:sctl", SCTL, NULL);
181AMBA_DEVICE(wdog, "dev:wdog", PB1176_WATCHDOG, NULL);
182AMBA_DEVICE(gpio0, "dev:gpio0", PB1176_GPIO0, &gpio0_plat_data);
183AMBA_DEVICE(gpio1, "dev:gpio1", GPIO1, &gpio1_plat_data);
184AMBA_DEVICE(gpio2, "dev:gpio2", GPIO2, &gpio2_plat_data);
185AMBA_DEVICE(rtc, "dev:rtc", PB1176_RTC, NULL);
186AMBA_DEVICE(sci0, "dev:sci0", SCI, NULL);
187AMBA_DEVICE(uart0, "dev:uart0", PB1176_UART0, NULL);
188AMBA_DEVICE(uart1, "dev:uart1", PB1176_UART1, NULL);
189AMBA_DEVICE(uart2, "dev:uart2", PB1176_UART2, NULL);
190AMBA_DEVICE(ssp0, "dev:ssp0", PB1176_SSP, NULL);
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191
192/* Primecells on the NEC ISSP chip */
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193AMBA_DEVICE(clcd, "issp:clcd", PB1176_CLCD, &clcd_plat_data);
194//AMBA_DEVICE(dmac, "issp:dmac", PB1176_DMAC, NULL);
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195
196static 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 */
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221static 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};
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233#ifdef CONFIG_REALVIEW_PB1176_SECURE_FLASH
234#define PB1176_FLASH_BLOCKS 2
235#else
236#define PB1176_FLASH_BLOCKS 1
237#endif
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238
239static 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
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252static 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
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265static struct resource pmu_resource = {
266 .start = IRQ_DC1176_CORE_PMU,
267 .end = IRQ_DC1176_CORE_PMU,
268 .flags = IORESOURCE_IRQ,
269};
270
271static 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
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278static 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
291static 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
301static struct sys_timer realview_pb1176_timer = {
302 .init = realview_pb1176_timer_init,
303};
304
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305static void realview_pb1176_reset(char mode)
306{
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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);
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311}
312
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313static 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
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325static void __init realview_pb1176_init(void)
326{
327 int i;
328
ba927951 329#ifdef CONFIG_CACHE_L2X0
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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
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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);
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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;
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350}
351
352MACHINE_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,
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358 .map_io = realview_pb1176_map_io,
359 .init_irq = gic_init_irq,
360 .timer = &realview_pb1176_timer,
361 .init_machine = realview_pb1176_init,
362MACHINE_END