blob: 08fd683adc4ced929eb255fd8da2e3b733850a87 [file] [log] [blame]
Colin Tuckley1b504bb2009-05-30 13:56:12 +01001/*
2 * arch/arm/mach-realview/realview_pbx.c
3 *
4 * Copyright (C) 2009 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 version 2 as
9 * published by the Free Software Foundation.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19 */
20
21#include <linux/init.h>
22#include <linux/platform_device.h>
23#include <linux/sysdev.h>
24#include <linux/amba/bus.h>
Russell Kingeb7fffa2009-07-05 22:41:31 +010025#include <linux/amba/pl061.h>
Linus Walleij6ef297f2009-09-22 14:29:36 +010026#include <linux/amba/mmci.h>
Colin Tuckley1b504bb2009-05-30 13:56:12 +010027#include <linux/io.h>
28
29#include <asm/irq.h>
30#include <asm/leds.h>
31#include <asm/mach-types.h>
Will Deaconf417cba2010-04-15 10:16:26 +010032#include <asm/pmu.h>
Catalin Marinasc3c21742009-06-19 11:28:48 +010033#include <asm/smp_twd.h>
Catalin Marinascc9897d2010-06-21 15:12:40 +010034#include <asm/pgtable.h>
Colin Tuckley1b504bb2009-05-30 13:56:12 +010035#include <asm/hardware/gic.h>
36#include <asm/hardware/cache-l2x0.h>
37
38#include <asm/mach/arch.h>
39#include <asm/mach/map.h>
Colin Tuckley1b504bb2009-05-30 13:56:12 +010040#include <asm/mach/time.h>
41
42#include <mach/hardware.h>
43#include <mach/board-pbx.h>
44#include <mach/irqs.h>
45
46#include "core.h"
47
48static struct map_desc realview_pbx_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_PBX_GIC_CPU_BASE),
56 .pfn = __phys_to_pfn(REALVIEW_PBX_GIC_CPU_BASE),
57 .length = SZ_4K,
58 .type = MT_DEVICE,
59 }, {
60 .virtual = IO_ADDRESS(REALVIEW_PBX_GIC_DIST_BASE),
61 .pfn = __phys_to_pfn(REALVIEW_PBX_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_PBX_TIMER0_1_BASE),
71 .pfn = __phys_to_pfn(REALVIEW_PBX_TIMER0_1_BASE),
72 .length = SZ_4K,
73 .type = MT_DEVICE,
74 }, {
75 .virtual = IO_ADDRESS(REALVIEW_PBX_TIMER2_3_BASE),
76 .pfn = __phys_to_pfn(REALVIEW_PBX_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_PBX_PCI_BASE),
84 .length = REALVIEW_PBX_PCI_BASE_SIZE,
85 .type = MT_DEVICE,
86 },
87#endif
88#ifdef CONFIG_DEBUG_LL
89 {
90 .virtual = IO_ADDRESS(REALVIEW_PBX_UART0_BASE),
91 .pfn = __phys_to_pfn(REALVIEW_PBX_UART0_BASE),
92 .length = SZ_4K,
93 .type = MT_DEVICE,
94 },
95#endif
96};
97
98static struct map_desc realview_local_io_desc[] __initdata = {
99 {
100 .virtual = IO_ADDRESS(REALVIEW_PBX_TILE_GIC_CPU_BASE),
101 .pfn = __phys_to_pfn(REALVIEW_PBX_TILE_GIC_CPU_BASE),
102 .length = SZ_4K,
103 .type = MT_DEVICE,
104 }, {
105 .virtual = IO_ADDRESS(REALVIEW_PBX_TILE_GIC_DIST_BASE),
106 .pfn = __phys_to_pfn(REALVIEW_PBX_TILE_GIC_DIST_BASE),
107 .length = SZ_4K,
108 .type = MT_DEVICE,
109 }, {
110 .virtual = IO_ADDRESS(REALVIEW_PBX_TILE_L220_BASE),
111 .pfn = __phys_to_pfn(REALVIEW_PBX_TILE_L220_BASE),
112 .length = SZ_8K,
113 .type = MT_DEVICE,
114 }
115};
116
117static void __init realview_pbx_map_io(void)
118{
119 iotable_init(realview_pbx_io_desc, ARRAY_SIZE(realview_pbx_io_desc));
120 if (core_tile_pbx11mp() || core_tile_pbxa9mp())
121 iotable_init(realview_local_io_desc, ARRAY_SIZE(realview_local_io_desc));
122}
123
Russell Kingeb7fffa2009-07-05 22:41:31 +0100124static struct pl061_platform_data gpio0_plat_data = {
125 .gpio_base = 0,
126 .irq_base = -1,
127};
128
129static struct pl061_platform_data gpio1_plat_data = {
130 .gpio_base = 8,
131 .irq_base = -1,
132};
133
134static struct pl061_platform_data gpio2_plat_data = {
135 .gpio_base = 16,
136 .irq_base = -1,
137};
138
Colin Tuckley1b504bb2009-05-30 13:56:12 +0100139/*
140 * RealView PBXCore AMBA devices
141 */
142
143#define GPIO2_IRQ { IRQ_PBX_GPIO2, NO_IRQ }
144#define GPIO2_DMA { 0, 0 }
145#define GPIO3_IRQ { IRQ_PBX_GPIO3, NO_IRQ }
146#define GPIO3_DMA { 0, 0 }
147#define AACI_IRQ { IRQ_PBX_AACI, NO_IRQ }
148#define AACI_DMA { 0x80, 0x81 }
149#define MMCI0_IRQ { IRQ_PBX_MMCI0A, IRQ_PBX_MMCI0B }
150#define MMCI0_DMA { 0x84, 0 }
151#define KMI0_IRQ { IRQ_PBX_KMI0, NO_IRQ }
152#define KMI0_DMA { 0, 0 }
153#define KMI1_IRQ { IRQ_PBX_KMI1, NO_IRQ }
154#define KMI1_DMA { 0, 0 }
155#define PBX_SMC_IRQ { NO_IRQ, NO_IRQ }
156#define PBX_SMC_DMA { 0, 0 }
157#define MPMC_IRQ { NO_IRQ, NO_IRQ }
158#define MPMC_DMA { 0, 0 }
159#define PBX_CLCD_IRQ { IRQ_PBX_CLCD, NO_IRQ }
160#define PBX_CLCD_DMA { 0, 0 }
161#define DMAC_IRQ { IRQ_PBX_DMAC, NO_IRQ }
162#define DMAC_DMA { 0, 0 }
163#define SCTL_IRQ { NO_IRQ, NO_IRQ }
164#define SCTL_DMA { 0, 0 }
165#define PBX_WATCHDOG_IRQ { IRQ_PBX_WATCHDOG, NO_IRQ }
166#define PBX_WATCHDOG_DMA { 0, 0 }
167#define PBX_GPIO0_IRQ { IRQ_PBX_GPIO0, NO_IRQ }
168#define PBX_GPIO0_DMA { 0, 0 }
169#define GPIO1_IRQ { IRQ_PBX_GPIO1, NO_IRQ }
170#define GPIO1_DMA { 0, 0 }
171#define PBX_RTC_IRQ { IRQ_PBX_RTC, NO_IRQ }
172#define PBX_RTC_DMA { 0, 0 }
173#define SCI_IRQ { IRQ_PBX_SCI, NO_IRQ }
174#define SCI_DMA { 7, 6 }
175#define PBX_UART0_IRQ { IRQ_PBX_UART0, NO_IRQ }
176#define PBX_UART0_DMA { 15, 14 }
177#define PBX_UART1_IRQ { IRQ_PBX_UART1, NO_IRQ }
178#define PBX_UART1_DMA { 13, 12 }
179#define PBX_UART2_IRQ { IRQ_PBX_UART2, NO_IRQ }
180#define PBX_UART2_DMA { 11, 10 }
181#define PBX_UART3_IRQ { IRQ_PBX_UART3, NO_IRQ }
182#define PBX_UART3_DMA { 0x86, 0x87 }
183#define PBX_SSP_IRQ { IRQ_PBX_SSP, NO_IRQ }
184#define PBX_SSP_DMA { 9, 8 }
185
186/* FPGA Primecells */
Linus Walleij43215322009-09-21 12:30:32 +0100187AMBA_DEVICE(aaci, "fpga:aaci", AACI, NULL);
188AMBA_DEVICE(mmc0, "fpga:mmc0", MMCI0, &realview_mmc0_plat_data);
189AMBA_DEVICE(kmi0, "fpga:kmi0", KMI0, NULL);
190AMBA_DEVICE(kmi1, "fpga:kmi1", KMI1, NULL);
191AMBA_DEVICE(uart3, "fpga:uart3", PBX_UART3, NULL);
Colin Tuckley1b504bb2009-05-30 13:56:12 +0100192
193/* DevChip Primecells */
Linus Walleij43215322009-09-21 12:30:32 +0100194AMBA_DEVICE(smc, "dev:smc", PBX_SMC, NULL);
195AMBA_DEVICE(sctl, "dev:sctl", SCTL, NULL);
196AMBA_DEVICE(wdog, "dev:wdog", PBX_WATCHDOG, NULL);
197AMBA_DEVICE(gpio0, "dev:gpio0", PBX_GPIO0, &gpio0_plat_data);
198AMBA_DEVICE(gpio1, "dev:gpio1", GPIO1, &gpio1_plat_data);
199AMBA_DEVICE(gpio2, "dev:gpio2", GPIO2, &gpio2_plat_data);
200AMBA_DEVICE(rtc, "dev:rtc", PBX_RTC, NULL);
201AMBA_DEVICE(sci0, "dev:sci0", SCI, NULL);
202AMBA_DEVICE(uart0, "dev:uart0", PBX_UART0, NULL);
203AMBA_DEVICE(uart1, "dev:uart1", PBX_UART1, NULL);
204AMBA_DEVICE(uart2, "dev:uart2", PBX_UART2, NULL);
205AMBA_DEVICE(ssp0, "dev:ssp0", PBX_SSP, NULL);
Colin Tuckley1b504bb2009-05-30 13:56:12 +0100206
207/* Primecells on the NEC ISSP chip */
Linus Walleij43215322009-09-21 12:30:32 +0100208AMBA_DEVICE(clcd, "issp:clcd", PBX_CLCD, &clcd_plat_data);
209AMBA_DEVICE(dmac, "issp:dmac", DMAC, NULL);
Colin Tuckley1b504bb2009-05-30 13:56:12 +0100210
211static struct amba_device *amba_devs[] __initdata = {
212 &dmac_device,
213 &uart0_device,
214 &uart1_device,
215 &uart2_device,
216 &uart3_device,
217 &smc_device,
218 &clcd_device,
219 &sctl_device,
220 &wdog_device,
221 &gpio0_device,
222 &gpio1_device,
223 &gpio2_device,
224 &rtc_device,
225 &sci0_device,
226 &ssp0_device,
227 &aaci_device,
228 &mmc0_device,
229 &kmi0_device,
230 &kmi1_device,
231};
232
233/*
234 * RealView PB-X platform devices
235 */
236static struct resource realview_pbx_flash_resources[] = {
237 [0] = {
238 .start = REALVIEW_PBX_FLASH0_BASE,
239 .end = REALVIEW_PBX_FLASH0_BASE + REALVIEW_PBX_FLASH0_SIZE - 1,
240 .flags = IORESOURCE_MEM,
241 },
242 [1] = {
243 .start = REALVIEW_PBX_FLASH1_BASE,
244 .end = REALVIEW_PBX_FLASH1_BASE + REALVIEW_PBX_FLASH1_SIZE - 1,
245 .flags = IORESOURCE_MEM,
246 },
247};
248
249static struct resource realview_pbx_smsc911x_resources[] = {
250 [0] = {
251 .start = REALVIEW_PBX_ETH_BASE,
252 .end = REALVIEW_PBX_ETH_BASE + SZ_64K - 1,
253 .flags = IORESOURCE_MEM,
254 },
255 [1] = {
256 .start = IRQ_PBX_ETH,
257 .end = IRQ_PBX_ETH,
258 .flags = IORESOURCE_IRQ,
259 },
260};
261
262static struct resource realview_pbx_isp1761_resources[] = {
263 [0] = {
264 .start = REALVIEW_PBX_USB_BASE,
265 .end = REALVIEW_PBX_USB_BASE + SZ_128K - 1,
266 .flags = IORESOURCE_MEM,
267 },
268 [1] = {
269 .start = IRQ_PBX_USB,
270 .end = IRQ_PBX_USB,
271 .flags = IORESOURCE_IRQ,
272 },
273};
274
Will Deaconf417cba2010-04-15 10:16:26 +0100275static struct resource pmu_resources[] = {
276 [0] = {
277 .start = IRQ_PBX_PMU_CPU0,
278 .end = IRQ_PBX_PMU_CPU0,
279 .flags = IORESOURCE_IRQ,
280 },
281 [1] = {
282 .start = IRQ_PBX_PMU_CPU1,
283 .end = IRQ_PBX_PMU_CPU1,
284 .flags = IORESOURCE_IRQ,
285 },
286 [2] = {
287 .start = IRQ_PBX_PMU_CPU2,
288 .end = IRQ_PBX_PMU_CPU2,
289 .flags = IORESOURCE_IRQ,
290 },
291 [3] = {
292 .start = IRQ_PBX_PMU_CPU3,
293 .end = IRQ_PBX_PMU_CPU3,
294 .flags = IORESOURCE_IRQ,
295 },
296};
297
298static struct platform_device pmu_device = {
299 .name = "arm-pmu",
300 .id = ARM_PMU_DEVICE_CPU,
301 .num_resources = ARRAY_SIZE(pmu_resources),
302 .resource = pmu_resources,
303};
304
Colin Tuckley1b504bb2009-05-30 13:56:12 +0100305static void __init gic_init_irq(void)
306{
307 /* ARM PBX on-board GIC */
308 if (core_tile_pbx11mp() || core_tile_pbxa9mp()) {
309 gic_cpu_base_addr = __io_address(REALVIEW_PBX_TILE_GIC_CPU_BASE);
310 gic_dist_init(0, __io_address(REALVIEW_PBX_TILE_GIC_DIST_BASE),
311 29);
312 gic_cpu_init(0, __io_address(REALVIEW_PBX_TILE_GIC_CPU_BASE));
313 } else {
314 gic_cpu_base_addr = __io_address(REALVIEW_PBX_GIC_CPU_BASE);
315 gic_dist_init(0, __io_address(REALVIEW_PBX_GIC_DIST_BASE),
316 IRQ_PBX_GIC_START);
317 gic_cpu_init(0, __io_address(REALVIEW_PBX_GIC_CPU_BASE));
318 }
319}
320
321static void __init realview_pbx_timer_init(void)
322{
323 timer0_va_base = __io_address(REALVIEW_PBX_TIMER0_1_BASE);
324 timer1_va_base = __io_address(REALVIEW_PBX_TIMER0_1_BASE) + 0x20;
325 timer2_va_base = __io_address(REALVIEW_PBX_TIMER2_3_BASE);
326 timer3_va_base = __io_address(REALVIEW_PBX_TIMER2_3_BASE) + 0x20;
327
328#ifdef CONFIG_LOCAL_TIMERS
329 if (core_tile_pbx11mp() || core_tile_pbxa9mp())
330 twd_base = __io_address(REALVIEW_PBX_TILE_TWD_BASE);
331#endif
332 realview_timer_init(IRQ_PBX_TIMER0_1);
333}
334
335static struct sys_timer realview_pbx_timer = {
336 .init = realview_pbx_timer_init,
337};
338
Catalin Marinasc97c5aa2009-11-04 12:19:05 +0000339static void realview_pbx_fixup(struct machine_desc *mdesc, struct tag *tags,
340 char **from, struct meminfo *meminfo)
341{
342#ifdef CONFIG_SPARSEMEM
343 /*
344 * Memory configuration with SPARSEMEM enabled on RealView PBX (see
345 * asm/mach/memory.h for more information).
346 */
347 meminfo->bank[0].start = 0;
348 meminfo->bank[0].size = SZ_256M;
349 meminfo->bank[1].start = 0x20000000;
350 meminfo->bank[1].size = SZ_512M;
351 meminfo->bank[2].start = 0x80000000;
352 meminfo->bank[2].size = SZ_256M;
353 meminfo->nr_banks = 3;
354#else
355 realview_fixup(mdesc, tags, from, meminfo);
356#endif
357}
358
Colin Tuckley4c9f8be2010-01-11 11:09:15 +0100359static void realview_pbx_reset(char mode)
360{
361 void __iomem *reset_ctrl = __io_address(REALVIEW_SYS_RESETCTL);
362 void __iomem *lock_ctrl = __io_address(REALVIEW_SYS_LOCK);
363
364 /*
365 * To reset, we hit the on-board reset register
366 * in the system FPGA
367 */
368 __raw_writel(REALVIEW_SYS_LOCK_VAL, lock_ctrl);
Colin Tuckleydf2e6152010-01-29 12:52:55 +0100369 __raw_writel(0x00F0, reset_ctrl);
370 __raw_writel(0x00F4, reset_ctrl);
Colin Tuckley4c9f8be2010-01-11 11:09:15 +0100371}
372
Colin Tuckley1b504bb2009-05-30 13:56:12 +0100373static void __init realview_pbx_init(void)
374{
375 int i;
376
377#ifdef CONFIG_CACHE_L2X0
378 if (core_tile_pbxa9mp()) {
379 void __iomem *l2x0_base =
380 __io_address(REALVIEW_PBX_TILE_L220_BASE);
381
382 /* set RAM latencies to 1 cycle for eASIC */
383 writel(0, l2x0_base + L2X0_TAG_LATENCY_CTRL);
384 writel(0, l2x0_base + L2X0_DATA_LATENCY_CTRL);
385
386 /* 16KB way size, 8-way associativity, parity disabled
387 * Bits: .. 0 0 0 0 1 00 1 0 1 001 0 000 0 .... .... .... */
388 l2x0_init(l2x0_base, 0x02520000, 0xc0000fff);
Will Deaconf417cba2010-04-15 10:16:26 +0100389 platform_device_register(&pmu_device);
Colin Tuckley1b504bb2009-05-30 13:56:12 +0100390 }
391#endif
392
393 realview_flash_register(realview_pbx_flash_resources,
394 ARRAY_SIZE(realview_pbx_flash_resources));
395 realview_eth_register(NULL, realview_pbx_smsc911x_resources);
396 platform_device_register(&realview_i2c_device);
397 platform_device_register(&realview_cf_device);
398 realview_usb_register(realview_pbx_isp1761_resources);
399
400 for (i = 0; i < ARRAY_SIZE(amba_devs); i++) {
401 struct amba_device *d = amba_devs[i];
402 amba_device_register(d, &iomem_resource);
403 }
404
405#ifdef CONFIG_LEDS
406 leds_event = realview_leds_event;
407#endif
Colin Tuckley4c9f8be2010-01-11 11:09:15 +0100408 realview_reset = realview_pbx_reset;
Colin Tuckley1b504bb2009-05-30 13:56:12 +0100409}
410
411MACHINE_START(REALVIEW_PBX, "ARM-RealView PBX")
412 /* Maintainer: ARM Ltd/Deep Blue Solutions Ltd */
Catalin Marinascc9897d2010-06-21 15:12:40 +0100413 .phys_io = REALVIEW_PBX_UART0_BASE & SECTION_MASK,
Colin Tuckley1b504bb2009-05-30 13:56:12 +0100414 .io_pg_offst = (IO_ADDRESS(REALVIEW_PBX_UART0_BASE) >> 18) & 0xfffc,
415 .boot_params = PHYS_OFFSET + 0x00000100,
Catalin Marinasc97c5aa2009-11-04 12:19:05 +0000416 .fixup = realview_pbx_fixup,
Colin Tuckley1b504bb2009-05-30 13:56:12 +0100417 .map_io = realview_pbx_map_io,
418 .init_irq = gic_init_irq,
419 .timer = &realview_pbx_timer,
420 .init_machine = realview_pbx_init,
421MACHINE_END