clk: convert ARM RealView to common clk
[linux-2.6-block.git] / arch / arm / mach-realview / realview_pb11mp.c
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1/*
2 * linux/arch/arm/mach-realview/realview_pb11mp.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>
a9b67db5 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>
fced80c7 29#include <linux/io.h>
f9a6aa43 30#include <linux/platform_data/clk-realview.h>
a9b67db5 31
a09e64fb 32#include <mach/hardware.h>
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33#include <asm/irq.h>
34#include <asm/leds.h>
35#include <asm/mach-types.h>
f417cbad 36#include <asm/pmu.h>
cc9897df 37#include <asm/pgtable.h>
a9b67db5 38#include <asm/hardware/gic.h>
a9b67db5 39#include <asm/hardware/cache-l2x0.h>
7c380f27 40#include <asm/smp_twd.h>
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41
42#include <asm/mach/arch.h>
43#include <asm/mach/flash.h>
44#include <asm/mach/map.h>
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45#include <asm/mach/time.h>
46
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47#include <mach/board-pb11mp.h>
48#include <mach/irqs.h>
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49
50#include "core.h"
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51
52static struct map_desc realview_pb11mp_io_desc[] __initdata = {
53 {
54 .virtual = IO_ADDRESS(REALVIEW_SYS_BASE),
55 .pfn = __phys_to_pfn(REALVIEW_SYS_BASE),
56 .length = SZ_4K,
57 .type = MT_DEVICE,
58 }, {
59 .virtual = IO_ADDRESS(REALVIEW_PB11MP_GIC_CPU_BASE),
60 .pfn = __phys_to_pfn(REALVIEW_PB11MP_GIC_CPU_BASE),
61 .length = SZ_4K,
62 .type = MT_DEVICE,
63 }, {
64 .virtual = IO_ADDRESS(REALVIEW_PB11MP_GIC_DIST_BASE),
65 .pfn = __phys_to_pfn(REALVIEW_PB11MP_GIC_DIST_BASE),
66 .length = SZ_4K,
67 .type = MT_DEVICE,
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68 }, { /* Maps the SCU, GIC CPU interface, TWD, GIC DIST */
69 .virtual = IO_ADDRESS(REALVIEW_TC11MP_PRIV_MEM_BASE),
70 .pfn = __phys_to_pfn(REALVIEW_TC11MP_PRIV_MEM_BASE),
71 .length = REALVIEW_TC11MP_PRIV_MEM_SIZE,
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72 .type = MT_DEVICE,
73 }, {
74 .virtual = IO_ADDRESS(REALVIEW_SCTL_BASE),
75 .pfn = __phys_to_pfn(REALVIEW_SCTL_BASE),
76 .length = SZ_4K,
77 .type = MT_DEVICE,
78 }, {
79 .virtual = IO_ADDRESS(REALVIEW_PB11MP_TIMER0_1_BASE),
80 .pfn = __phys_to_pfn(REALVIEW_PB11MP_TIMER0_1_BASE),
81 .length = SZ_4K,
82 .type = MT_DEVICE,
83 }, {
84 .virtual = IO_ADDRESS(REALVIEW_PB11MP_TIMER2_3_BASE),
85 .pfn = __phys_to_pfn(REALVIEW_PB11MP_TIMER2_3_BASE),
86 .length = SZ_4K,
87 .type = MT_DEVICE,
88 }, {
89 .virtual = IO_ADDRESS(REALVIEW_TC11MP_L220_BASE),
90 .pfn = __phys_to_pfn(REALVIEW_TC11MP_L220_BASE),
91 .length = SZ_8K,
92 .type = MT_DEVICE,
93 },
94#ifdef CONFIG_DEBUG_LL
95 {
96 .virtual = IO_ADDRESS(REALVIEW_PB11MP_UART0_BASE),
97 .pfn = __phys_to_pfn(REALVIEW_PB11MP_UART0_BASE),
98 .length = SZ_4K,
99 .type = MT_DEVICE,
100 },
101#endif
102};
103
104static void __init realview_pb11mp_map_io(void)
105{
106 iotable_init(realview_pb11mp_io_desc, ARRAY_SIZE(realview_pb11mp_io_desc));
107}
108
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109static struct pl061_platform_data gpio0_plat_data = {
110 .gpio_base = 0,
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111};
112
113static struct pl061_platform_data gpio1_plat_data = {
114 .gpio_base = 8,
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115};
116
117static struct pl061_platform_data gpio2_plat_data = {
118 .gpio_base = 16,
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119};
120
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121static struct pl022_ssp_controller ssp0_plat_data = {
122 .bus_id = 0,
123 .enable_dma = 0,
124 .num_chipselect = 1,
125};
126
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127/*
128 * RealView PB11MPCore AMBA devices
129 */
130
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131#define GPIO2_IRQ { IRQ_PB11MP_GPIO2 }
132#define GPIO3_IRQ { IRQ_PB11MP_GPIO3 }
133#define AACI_IRQ { IRQ_TC11MP_AACI }
a9b67db5 134#define MMCI0_IRQ { IRQ_TC11MP_MMCI0A, IRQ_TC11MP_MMCI0B }
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135#define KMI0_IRQ { IRQ_TC11MP_KMI0 }
136#define KMI1_IRQ { IRQ_TC11MP_KMI1 }
137#define PB11MP_SMC_IRQ { }
138#define MPMC_IRQ { }
139#define PB11MP_CLCD_IRQ { IRQ_PB11MP_CLCD }
140#define DMAC_IRQ { IRQ_PB11MP_DMAC }
141#define SCTL_IRQ { }
142#define PB11MP_WATCHDOG_IRQ { IRQ_PB11MP_WATCHDOG }
143#define PB11MP_GPIO0_IRQ { IRQ_PB11MP_GPIO0 }
144#define GPIO1_IRQ { IRQ_PB11MP_GPIO1 }
145#define PB11MP_RTC_IRQ { IRQ_TC11MP_RTC }
146#define SCI_IRQ { IRQ_PB11MP_SCI }
147#define PB11MP_UART0_IRQ { IRQ_TC11MP_UART0 }
148#define PB11MP_UART1_IRQ { IRQ_TC11MP_UART1 }
149#define PB11MP_UART2_IRQ { IRQ_PB11MP_UART2 }
150#define PB11MP_UART3_IRQ { IRQ_PB11MP_UART3 }
151#define PB11MP_SSP_IRQ { IRQ_PB11MP_SSP }
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152
153/* FPGA Primecells */
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154APB_DEVICE(aaci, "fpga:aaci", AACI, NULL);
155APB_DEVICE(mmc0, "fpga:mmc0", MMCI0, &realview_mmc0_plat_data);
156APB_DEVICE(kmi0, "fpga:kmi0", KMI0, NULL);
157APB_DEVICE(kmi1, "fpga:kmi1", KMI1, NULL);
158APB_DEVICE(uart3, "fpga:uart3", PB11MP_UART3, NULL);
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159
160/* DevChip Primecells */
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161AHB_DEVICE(smc, "dev:smc", PB11MP_SMC, NULL);
162AHB_DEVICE(sctl, "dev:sctl", SCTL, NULL);
163APB_DEVICE(wdog, "dev:wdog", PB11MP_WATCHDOG, NULL);
164APB_DEVICE(gpio0, "dev:gpio0", PB11MP_GPIO0, &gpio0_plat_data);
165APB_DEVICE(gpio1, "dev:gpio1", GPIO1, &gpio1_plat_data);
166APB_DEVICE(gpio2, "dev:gpio2", GPIO2, &gpio2_plat_data);
167APB_DEVICE(rtc, "dev:rtc", PB11MP_RTC, NULL);
168APB_DEVICE(sci0, "dev:sci0", SCI, NULL);
169APB_DEVICE(uart0, "dev:uart0", PB11MP_UART0, NULL);
170APB_DEVICE(uart1, "dev:uart1", PB11MP_UART1, NULL);
171APB_DEVICE(uart2, "dev:uart2", PB11MP_UART2, NULL);
172APB_DEVICE(ssp0, "dev:ssp0", PB11MP_SSP, &ssp0_plat_data);
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173
174/* Primecells on the NEC ISSP chip */
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175AHB_DEVICE(clcd, "issp:clcd", PB11MP_CLCD, &clcd_plat_data);
176AHB_DEVICE(dmac, "issp:dmac", DMAC, NULL);
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177
178static struct amba_device *amba_devs[] __initdata = {
179 &dmac_device,
180 &uart0_device,
181 &uart1_device,
182 &uart2_device,
183 &uart3_device,
184 &smc_device,
185 &clcd_device,
186 &sctl_device,
187 &wdog_device,
188 &gpio0_device,
189 &gpio1_device,
190 &gpio2_device,
191 &rtc_device,
192 &sci0_device,
193 &ssp0_device,
194 &aaci_device,
195 &mmc0_device,
196 &kmi0_device,
197 &kmi1_device,
198};
199
200/*
201 * RealView PB11MPCore platform devices
202 */
203static struct resource realview_pb11mp_flash_resource[] = {
204 [0] = {
205 .start = REALVIEW_PB11MP_FLASH0_BASE,
206 .end = REALVIEW_PB11MP_FLASH0_BASE + REALVIEW_PB11MP_FLASH0_SIZE - 1,
207 .flags = IORESOURCE_MEM,
208 },
209 [1] = {
210 .start = REALVIEW_PB11MP_FLASH1_BASE,
211 .end = REALVIEW_PB11MP_FLASH1_BASE + REALVIEW_PB11MP_FLASH1_SIZE - 1,
212 .flags = IORESOURCE_MEM,
213 },
214};
215
216static struct resource realview_pb11mp_smsc911x_resources[] = {
217 [0] = {
218 .start = REALVIEW_PB11MP_ETH_BASE,
219 .end = REALVIEW_PB11MP_ETH_BASE + SZ_64K - 1,
220 .flags = IORESOURCE_MEM,
221 },
222 [1] = {
223 .start = IRQ_TC11MP_ETH,
224 .end = IRQ_TC11MP_ETH,
225 .flags = IORESOURCE_IRQ,
226 },
227};
228
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229static struct resource realview_pb11mp_isp1761_resources[] = {
230 [0] = {
231 .start = REALVIEW_PB11MP_USB_BASE,
232 .end = REALVIEW_PB11MP_USB_BASE + SZ_128K - 1,
233 .flags = IORESOURCE_MEM,
234 },
235 [1] = {
236 .start = IRQ_TC11MP_USB,
237 .end = IRQ_TC11MP_USB,
238 .flags = IORESOURCE_IRQ,
239 },
240};
241
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242static struct resource pmu_resources[] = {
243 [0] = {
244 .start = IRQ_TC11MP_PMU_CPU0,
245 .end = IRQ_TC11MP_PMU_CPU0,
246 .flags = IORESOURCE_IRQ,
247 },
248 [1] = {
249 .start = IRQ_TC11MP_PMU_CPU1,
250 .end = IRQ_TC11MP_PMU_CPU1,
251 .flags = IORESOURCE_IRQ,
252 },
253 [2] = {
254 .start = IRQ_TC11MP_PMU_CPU2,
255 .end = IRQ_TC11MP_PMU_CPU2,
256 .flags = IORESOURCE_IRQ,
257 },
258 [3] = {
259 .start = IRQ_TC11MP_PMU_CPU3,
260 .end = IRQ_TC11MP_PMU_CPU3,
261 .flags = IORESOURCE_IRQ,
262 },
263};
264
265static struct platform_device pmu_device = {
266 .name = "arm-pmu",
267 .id = ARM_PMU_DEVICE_CPU,
268 .num_resources = ARRAY_SIZE(pmu_resources),
269 .resource = pmu_resources,
270};
271
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272static void __init gic_init_irq(void)
273{
274 unsigned int pldctrl;
275
276 /* new irq mode with no DCC */
277 writel(0x0000a05f, __io_address(REALVIEW_SYS_LOCK));
278 pldctrl = readl(__io_address(REALVIEW_SYS_BASE) + REALVIEW_PB11MP_SYS_PLD_CTRL1);
279 pldctrl |= 2 << 22;
280 writel(pldctrl, __io_address(REALVIEW_SYS_BASE) + REALVIEW_PB11MP_SYS_PLD_CTRL1);
281 writel(0x00000000, __io_address(REALVIEW_SYS_LOCK));
282
283 /* ARM11MPCore test chip GIC, primary */
b580b899 284 gic_init(0, 29, __io_address(REALVIEW_TC11MP_GIC_DIST_BASE),
ff2e27ae 285 __io_address(REALVIEW_TC11MP_GIC_CPU_BASE));
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286
287 /* board GIC, secondary */
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288 gic_init(1, IRQ_PB11MP_GIC_START,
289 __io_address(REALVIEW_PB11MP_GIC_DIST_BASE),
290 __io_address(REALVIEW_PB11MP_GIC_CPU_BASE));
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291 gic_cascade_irq(1, IRQ_TC11MP_PB_IRQ1);
292}
293
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294#ifdef CONFIG_HAVE_ARM_TWD
295static DEFINE_TWD_LOCAL_TIMER(twd_local_timer,
296 REALVIEW_TC11MP_TWD_BASE,
297 IRQ_LOCALTIMER);
298
299static void __init realview_pb11mp_twd_init(void)
300{
301 int err = twd_local_timer_register(&twd_local_timer);
302 if (err)
303 pr_err("twd_local_timer_register failed %d\n", err);
304}
305#else
306#define realview_pb11mp_twd_init() do {} while(0)
307#endif
308
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309static void __init realview_pb11mp_timer_init(void)
310{
311 timer0_va_base = __io_address(REALVIEW_PB11MP_TIMER0_1_BASE);
312 timer1_va_base = __io_address(REALVIEW_PB11MP_TIMER0_1_BASE) + 0x20;
313 timer2_va_base = __io_address(REALVIEW_PB11MP_TIMER2_3_BASE);
314 timer3_va_base = __io_address(REALVIEW_PB11MP_TIMER2_3_BASE) + 0x20;
315
f9a6aa43 316 realview_clk_init(__io_address(REALVIEW_SYS_BASE), false);
a9b67db5 317 realview_timer_init(IRQ_TC11MP_TIMER0_1);
7c380f27 318 realview_pb11mp_twd_init();
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319}
320
321static struct sys_timer realview_pb11mp_timer = {
322 .init = realview_pb11mp_timer_init,
323};
324
47cacdd4 325static void realview_pb11mp_restart(char mode, const char *cmd)
426fcd2a 326{
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327 void __iomem *reset_ctrl = __io_address(REALVIEW_SYS_RESETCTL);
328 void __iomem *lock_ctrl = __io_address(REALVIEW_SYS_LOCK);
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329
330 /*
331 * To reset, we hit the on-board reset register
332 * in the system FPGA
333 */
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334 __raw_writel(REALVIEW_SYS_LOCK_VAL, lock_ctrl);
335 __raw_writel(0x0000, reset_ctrl);
336 __raw_writel(0x0004, reset_ctrl);
47cacdd4 337 dsb();
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338}
339
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340static void __init realview_pb11mp_init(void)
341{
342 int i;
343
ba927951 344#ifdef CONFIG_CACHE_L2X0
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345 /* 1MB (128KB/way), 8-way associativity, evmon/parity/share enabled
346 * Bits: .... ...0 0111 1001 0000 .... .... .... */
347 l2x0_init(__io_address(REALVIEW_TC11MP_L220_BASE), 0x00790000, 0xfe000fff);
ba927951 348#endif
a9b67db5 349
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350 realview_flash_register(realview_pb11mp_flash_resource,
351 ARRAY_SIZE(realview_pb11mp_flash_resource));
0a381330 352 realview_eth_register(NULL, realview_pb11mp_smsc911x_resources);
a9b67db5 353 platform_device_register(&realview_i2c_device);
6be62ba2 354 platform_device_register(&realview_cf_device);
7db21712 355 realview_usb_register(realview_pb11mp_isp1761_resources);
f417cbad 356 platform_device_register(&pmu_device);
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357
358 for (i = 0; i < ARRAY_SIZE(amba_devs); i++) {
359 struct amba_device *d = amba_devs[i];
360 amba_device_register(d, &iomem_resource);
361 }
362
363#ifdef CONFIG_LEDS
364 leds_event = realview_leds_event;
365#endif
366}
367
368MACHINE_START(REALVIEW_PB11MP, "ARM-RealView PB11MPCore")
369 /* Maintainer: ARM Ltd/Deep Blue Solutions Ltd */
9ddea57e 370 .atag_offset = 0x100,
5b39d154 371 .fixup = realview_fixup,
a9b67db5 372 .map_io = realview_pb11mp_map_io,
631e55f9 373 .init_early = realview_init_early,
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374 .init_irq = gic_init_irq,
375 .timer = &realview_pb11mp_timer,
1b99d9cc 376 .handle_irq = gic_handle_irq,
a9b67db5 377 .init_machine = realview_pb11mp_init,
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378#ifdef CONFIG_ZONE_DMA
379 .dma_zone_size = SZ_256M,
380#endif
47cacdd4 381 .restart = realview_pb11mp_restart,
a9b67db5 382MACHINE_END