fb: adv7393: off by one in probe function
[deliverable/linux.git] / arch / arm / mach-realview / realview_pb1176.c
CommitLineData
a0316b24
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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>
edbaa603 24#include <linux/device.h>
a0316b24 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>
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29#include <linux/mtd/physmap.h>
30#include <linux/mtd/partitions.h>
fced80c7 31#include <linux/io.h>
520f7bd7 32#include <linux/irqchip/arm-gic.h>
f9a6aa43 33#include <linux/platform_data/clk-realview.h>
7b6d864b 34#include <linux/reboot.h>
1c2f87c2 35#include <linux/memblock.h>
a0316b24 36
6d407a6e 37#include "hardware.h"
a0316b24 38#include <asm/irq.h>
a0316b24 39#include <asm/mach-types.h>
cc9897df 40#include <asm/pgtable.h>
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41#include <asm/hardware/cache-l2x0.h>
42
43#include <asm/mach/arch.h>
44#include <asm/mach/flash.h>
45#include <asm/mach/map.h>
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46#include <asm/mach/time.h>
47
6d407a6e 48#include "board-pb1176.h"
38d2cfcc 49#include "irqs-pb1176.h"
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50
51#include "core.h"
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52
53static struct map_desc realview_pb1176_io_desc[] __initdata = {
54 {
55 .virtual = IO_ADDRESS(REALVIEW_SYS_BASE),
56 .pfn = __phys_to_pfn(REALVIEW_SYS_BASE),
57 .length = SZ_4K,
58 .type = MT_DEVICE,
59 }, {
60 .virtual = IO_ADDRESS(REALVIEW_PB1176_GIC_CPU_BASE),
61 .pfn = __phys_to_pfn(REALVIEW_PB1176_GIC_CPU_BASE),
62 .length = SZ_4K,
63 .type = MT_DEVICE,
64 }, {
65 .virtual = IO_ADDRESS(REALVIEW_PB1176_GIC_DIST_BASE),
66 .pfn = __phys_to_pfn(REALVIEW_PB1176_GIC_DIST_BASE),
67 .length = SZ_4K,
68 .type = MT_DEVICE,
69 }, {
70 .virtual = IO_ADDRESS(REALVIEW_DC1176_GIC_CPU_BASE),
71 .pfn = __phys_to_pfn(REALVIEW_DC1176_GIC_CPU_BASE),
72 .length = SZ_4K,
73 .type = MT_DEVICE,
74 }, {
75 .virtual = IO_ADDRESS(REALVIEW_DC1176_GIC_DIST_BASE),
76 .pfn = __phys_to_pfn(REALVIEW_DC1176_GIC_DIST_BASE),
77 .length = SZ_4K,
78 .type = MT_DEVICE,
79 }, {
80 .virtual = IO_ADDRESS(REALVIEW_SCTL_BASE),
81 .pfn = __phys_to_pfn(REALVIEW_SCTL_BASE),
82 .length = SZ_4K,
83 .type = MT_DEVICE,
84 }, {
85 .virtual = IO_ADDRESS(REALVIEW_PB1176_TIMER0_1_BASE),
86 .pfn = __phys_to_pfn(REALVIEW_PB1176_TIMER0_1_BASE),
87 .length = SZ_4K,
88 .type = MT_DEVICE,
89 }, {
90 .virtual = IO_ADDRESS(REALVIEW_PB1176_TIMER2_3_BASE),
91 .pfn = __phys_to_pfn(REALVIEW_PB1176_TIMER2_3_BASE),
92 .length = SZ_4K,
93 .type = MT_DEVICE,
94 }, {
95 .virtual = IO_ADDRESS(REALVIEW_PB1176_L220_BASE),
96 .pfn = __phys_to_pfn(REALVIEW_PB1176_L220_BASE),
97 .length = SZ_8K,
98 .type = MT_DEVICE,
99 },
100#ifdef CONFIG_DEBUG_LL
101 {
102 .virtual = IO_ADDRESS(REALVIEW_PB1176_UART0_BASE),
103 .pfn = __phys_to_pfn(REALVIEW_PB1176_UART0_BASE),
104 .length = SZ_4K,
105 .type = MT_DEVICE,
106 },
107#endif
108};
109
110static void __init realview_pb1176_map_io(void)
111{
112 iotable_init(realview_pb1176_io_desc, ARRAY_SIZE(realview_pb1176_io_desc));
113}
114
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115static struct pl061_platform_data gpio0_plat_data = {
116 .gpio_base = 0,
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117};
118
119static struct pl061_platform_data gpio1_plat_data = {
120 .gpio_base = 8,
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121};
122
123static struct pl061_platform_data gpio2_plat_data = {
124 .gpio_base = 16,
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125};
126
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127static struct pl022_ssp_controller ssp0_plat_data = {
128 .bus_id = 0,
129 .enable_dma = 0,
130 .num_chipselect = 1,
131};
132
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133/*
134 * RealView PB1176 AMBA devices
135 */
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136#define GPIO2_IRQ { IRQ_PB1176_GPIO2 }
137#define GPIO3_IRQ { IRQ_PB1176_GPIO3 }
138#define AACI_IRQ { IRQ_PB1176_AACI }
a0316b24 139#define MMCI0_IRQ { IRQ_PB1176_MMCI0A, IRQ_PB1176_MMCI0B }
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140#define KMI0_IRQ { IRQ_PB1176_KMI0 }
141#define KMI1_IRQ { IRQ_PB1176_KMI1 }
142#define PB1176_SMC_IRQ { }
143#define MPMC_IRQ { }
144#define PB1176_CLCD_IRQ { IRQ_DC1176_CLCD }
145#define SCTL_IRQ { }
146#define PB1176_WATCHDOG_IRQ { IRQ_DC1176_WATCHDOG }
147#define PB1176_GPIO0_IRQ { IRQ_DC1176_GPIO0 }
148#define GPIO1_IRQ { IRQ_PB1176_GPIO1 }
149#define PB1176_RTC_IRQ { IRQ_DC1176_RTC }
150#define SCI_IRQ { IRQ_PB1176_SCI }
151#define PB1176_UART0_IRQ { IRQ_DC1176_UART0 }
152#define PB1176_UART1_IRQ { IRQ_DC1176_UART1 }
153#define PB1176_UART2_IRQ { IRQ_DC1176_UART2 }
154#define PB1176_UART3_IRQ { IRQ_DC1176_UART3 }
155#define PB1176_UART4_IRQ { IRQ_PB1176_UART4 }
156#define PB1176_SSP_IRQ { IRQ_DC1176_SSP }
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157
158/* FPGA Primecells */
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RK
159APB_DEVICE(aaci, "fpga:aaci", AACI, NULL);
160APB_DEVICE(mmc0, "fpga:mmc0", MMCI0, &realview_mmc0_plat_data);
161APB_DEVICE(kmi0, "fpga:kmi0", KMI0, NULL);
162APB_DEVICE(kmi1, "fpga:kmi1", KMI1, NULL);
163APB_DEVICE(uart4, "fpga:uart4", PB1176_UART4, NULL);
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164
165/* DevChip Primecells */
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166AHB_DEVICE(smc, "dev:smc", PB1176_SMC, NULL);
167AHB_DEVICE(sctl, "dev:sctl", SCTL, NULL);
168APB_DEVICE(wdog, "dev:wdog", PB1176_WATCHDOG, NULL);
169APB_DEVICE(gpio0, "dev:gpio0", PB1176_GPIO0, &gpio0_plat_data);
170APB_DEVICE(gpio1, "dev:gpio1", GPIO1, &gpio1_plat_data);
171APB_DEVICE(gpio2, "dev:gpio2", GPIO2, &gpio2_plat_data);
172APB_DEVICE(rtc, "dev:rtc", PB1176_RTC, NULL);
173APB_DEVICE(sci0, "dev:sci0", SCI, NULL);
174APB_DEVICE(uart0, "dev:uart0", PB1176_UART0, NULL);
175APB_DEVICE(uart1, "dev:uart1", PB1176_UART1, NULL);
176APB_DEVICE(uart2, "dev:uart2", PB1176_UART2, NULL);
177APB_DEVICE(uart3, "dev:uart3", PB1176_UART3, NULL);
178APB_DEVICE(ssp0, "dev:ssp0", PB1176_SSP, &ssp0_plat_data);
179AHB_DEVICE(clcd, "dev:clcd", PB1176_CLCD, &clcd_plat_data);
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180
181static struct amba_device *amba_devs[] __initdata = {
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182 &uart0_device,
183 &uart1_device,
184 &uart2_device,
185 &uart3_device,
48f1d5a3 186 &uart4_device,
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187 &smc_device,
188 &clcd_device,
189 &sctl_device,
190 &wdog_device,
191 &gpio0_device,
192 &gpio1_device,
193 &gpio2_device,
194 &rtc_device,
195 &sci0_device,
196 &ssp0_device,
197 &aaci_device,
198 &mmc0_device,
199 &kmi0_device,
200 &kmi1_device,
201};
202
203/*
204 * RealView PB1176 platform devices
205 */
af607747 206static struct resource realview_pb1176_flash_resources[] = {
0ec5a95b 207 {
af607747
CM
208 .start = REALVIEW_PB1176_FLASH_BASE,
209 .end = REALVIEW_PB1176_FLASH_BASE + REALVIEW_PB1176_FLASH_SIZE - 1,
210 .flags = IORESOURCE_MEM,
211 },
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212#ifdef CONFIG_REALVIEW_PB1176_SECURE_FLASH
213 {
af607747
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214 .start = REALVIEW_PB1176_SEC_FLASH_BASE,
215 .end = REALVIEW_PB1176_SEC_FLASH_BASE + REALVIEW_PB1176_SEC_FLASH_SIZE - 1,
216 .flags = IORESOURCE_MEM,
217 },
af607747 218#endif
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219};
220
221static struct physmap_flash_data pb1176_rom_pdata = {
222 .probe_type = "map_rom",
223 .width = 4,
224 .nr_parts = 0,
225};
226
227static struct resource pb1176_rom_resources[] = {
228 /*
229 * This exposes the PB1176 DevChip ROM as an MTD ROM mapping.
230 * The reference manual states that this is actually a pseudo-ROM
231 * programmed in NVRAM.
232 */
233 {
234 .start = REALVIEW_DC1176_ROM_BASE,
235 .end = REALVIEW_DC1176_ROM_BASE + SZ_16K - 1,
236 .flags = IORESOURCE_MEM,
237 }
238};
239
240static struct platform_device pb1176_rom_device = {
241 .name = "physmap-flash",
242 .id = -1,
243 .num_resources = ARRAY_SIZE(pb1176_rom_resources),
244 .resource = pb1176_rom_resources,
245 .dev = {
246 .platform_data = &pb1176_rom_pdata,
247 },
248};
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249
250static struct resource realview_pb1176_smsc911x_resources[] = {
251 [0] = {
252 .start = REALVIEW_PB1176_ETH_BASE,
253 .end = REALVIEW_PB1176_ETH_BASE + SZ_64K - 1,
254 .flags = IORESOURCE_MEM,
255 },
256 [1] = {
257 .start = IRQ_PB1176_ETH,
258 .end = IRQ_PB1176_ETH,
259 .flags = IORESOURCE_IRQ,
260 },
261};
262
7db21712
CM
263static struct resource realview_pb1176_isp1761_resources[] = {
264 [0] = {
265 .start = REALVIEW_PB1176_USB_BASE,
266 .end = REALVIEW_PB1176_USB_BASE + SZ_128K - 1,
267 .flags = IORESOURCE_MEM,
268 },
269 [1] = {
270 .start = IRQ_PB1176_USB,
271 .end = IRQ_PB1176_USB,
272 .flags = IORESOURCE_IRQ,
273 },
274};
275
f417cbad
WD
276static struct resource pmu_resource = {
277 .start = IRQ_DC1176_CORE_PMU,
278 .end = IRQ_DC1176_CORE_PMU,
279 .flags = IORESOURCE_IRQ,
280};
281
282static struct platform_device pmu_device = {
cbed8388 283 .name = "armv6-pmu",
df3d17e0 284 .id = -1,
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WD
285 .num_resources = 1,
286 .resource = &pmu_resource,
287};
288
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289static struct resource char_lcd_resources[] = {
290 {
291 .start = REALVIEW_CHAR_LCD_BASE,
292 .end = (REALVIEW_CHAR_LCD_BASE + SZ_4K - 1),
293 .flags = IORESOURCE_MEM,
294 },
295 {
296 .start = IRQ_PB1176_CHARLCD,
297 .end = IRQ_PB1176_CHARLCD,
298 .flags = IORESOURCE_IRQ,
299 },
300};
301
302static struct platform_device char_lcd_device = {
303 .name = "arm-charlcd",
304 .id = -1,
305 .num_resources = ARRAY_SIZE(char_lcd_resources),
306 .resource = char_lcd_resources,
307};
308
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309static void __init gic_init_irq(void)
310{
311 /* ARM1176 DevChip GIC, primary */
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RK
312 gic_init(0, IRQ_DC1176_GIC_START,
313 __io_address(REALVIEW_DC1176_GIC_DIST_BASE),
ff2e27ae 314 __io_address(REALVIEW_DC1176_GIC_CPU_BASE));
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315
316 /* board GIC, secondary */
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317 gic_init(1, IRQ_PB1176_GIC_START,
318 __io_address(REALVIEW_PB1176_GIC_DIST_BASE),
319 __io_address(REALVIEW_PB1176_GIC_CPU_BASE));
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320 gic_cascade_irq(1, IRQ_DC1176_PB_IRQ1);
321}
322
323static void __init realview_pb1176_timer_init(void)
324{
325 timer0_va_base = __io_address(REALVIEW_PB1176_TIMER0_1_BASE);
326 timer1_va_base = __io_address(REALVIEW_PB1176_TIMER0_1_BASE) + 0x20;
327 timer2_va_base = __io_address(REALVIEW_PB1176_TIMER2_3_BASE);
328 timer3_va_base = __io_address(REALVIEW_PB1176_TIMER2_3_BASE) + 0x20;
329
f9a6aa43 330 realview_clk_init(__io_address(REALVIEW_SYS_BASE), true);
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331 realview_timer_init(IRQ_DC1176_TIMER0);
332}
333
7b6d864b 334static void realview_pb1176_restart(enum reboot_mode mode, const char *cmd)
426fcd2a 335{
4c9f8be7
CT
336 void __iomem *reset_ctrl = __io_address(REALVIEW_SYS_RESETCTL);
337 void __iomem *lock_ctrl = __io_address(REALVIEW_SYS_LOCK);
338 __raw_writel(REALVIEW_SYS_LOCK_VAL, lock_ctrl);
339 __raw_writel(REALVIEW_PB1176_SYS_SOFT_RESET, reset_ctrl);
47cacdd4 340 dsb();
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341}
342
1c2f87c2 343static void realview_pb1176_fixup(struct tag *tags, char **from)
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344{
345 /*
346 * RealView PB1176 only has 128MB of RAM mapped at 0.
347 */
1c2f87c2 348 memblock_add(0, SZ_128M);
5b39d154
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349}
350
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351static void __init realview_pb1176_init(void)
352{
353 int i;
354
ba927951 355#ifdef CONFIG_CACHE_L2X0
39b53458
RK
356 /*
357 * The PL220 needs to be manually configured as the hardware
358 * doesn't report the correct sizes.
359 * 128kB (16kB/way), 8-way associativity, event monitor and
360 * parity enabled, ignore share bit, no force write allocate
361 * Bits: .... ...0 0111 0011 0000 .... .... ....
362 */
a0316b24 363 l2x0_init(__io_address(REALVIEW_PB1176_L220_BASE), 0x00730000, 0xfe000fff);
ba927951 364#endif
a0316b24 365
af607747 366 realview_flash_register(realview_pb1176_flash_resources,
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LW
367 ARRAY_SIZE(realview_pb1176_flash_resources));
368 platform_device_register(&pb1176_rom_device);
0a381330 369 realview_eth_register(NULL, realview_pb1176_smsc911x_resources);
533ad5e6 370 platform_device_register(&realview_i2c_device);
7db21712 371 realview_usb_register(realview_pb1176_isp1761_resources);
f417cbad 372 platform_device_register(&pmu_device);
d161edfb 373 platform_device_register(&char_lcd_device);
e4ecf2bd 374 platform_device_register(&realview_leds_device);
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375
376 for (i = 0; i < ARRAY_SIZE(amba_devs); i++) {
377 struct amba_device *d = amba_devs[i];
378 amba_device_register(d, &iomem_resource);
379 }
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380}
381
382MACHINE_START(REALVIEW_PB1176, "ARM-RealView PB1176")
383 /* Maintainer: ARM Ltd/Deep Blue Solutions Ltd */
9ddea57e 384 .atag_offset = 0x100,
5b39d154 385 .fixup = realview_pb1176_fixup,
a0316b24 386 .map_io = realview_pb1176_map_io,
631e55f9 387 .init_early = realview_init_early,
a0316b24 388 .init_irq = gic_init_irq,
6bb27d73 389 .init_time = realview_pb1176_timer_init,
a0316b24 390 .init_machine = realview_pb1176_init,
00e9125e
NP
391#ifdef CONFIG_ZONE_DMA
392 .dma_zone_size = SZ_256M,
393#endif
47cacdd4 394 .restart = realview_pb1176_restart,
a0316b24 395MACHINE_END
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