[ARM] versatile: add PL061 gpiolib support
[deliverable/linux.git] / arch / arm / mach-realview / realview_pbx.c
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1/*
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>
25#include <linux/io.h>
26
27#include <asm/irq.h>
28#include <asm/leds.h>
29#include <asm/mach-types.h>
c3c21740 30#include <asm/smp_twd.h>
1b504bbe
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31#include <asm/hardware/gic.h>
32#include <asm/hardware/cache-l2x0.h>
33
34#include <asm/mach/arch.h>
35#include <asm/mach/map.h>
36#include <asm/mach/mmc.h>
37#include <asm/mach/time.h>
38
39#include <mach/hardware.h>
40#include <mach/board-pbx.h>
41#include <mach/irqs.h>
42
43#include "core.h"
44
45static struct map_desc realview_pbx_io_desc[] __initdata = {
46 {
47 .virtual = IO_ADDRESS(REALVIEW_SYS_BASE),
48 .pfn = __phys_to_pfn(REALVIEW_SYS_BASE),
49 .length = SZ_4K,
50 .type = MT_DEVICE,
51 }, {
52 .virtual = IO_ADDRESS(REALVIEW_PBX_GIC_CPU_BASE),
53 .pfn = __phys_to_pfn(REALVIEW_PBX_GIC_CPU_BASE),
54 .length = SZ_4K,
55 .type = MT_DEVICE,
56 }, {
57 .virtual = IO_ADDRESS(REALVIEW_PBX_GIC_DIST_BASE),
58 .pfn = __phys_to_pfn(REALVIEW_PBX_GIC_DIST_BASE),
59 .length = SZ_4K,
60 .type = MT_DEVICE,
61 }, {
62 .virtual = IO_ADDRESS(REALVIEW_SCTL_BASE),
63 .pfn = __phys_to_pfn(REALVIEW_SCTL_BASE),
64 .length = SZ_4K,
65 .type = MT_DEVICE,
66 }, {
67 .virtual = IO_ADDRESS(REALVIEW_PBX_TIMER0_1_BASE),
68 .pfn = __phys_to_pfn(REALVIEW_PBX_TIMER0_1_BASE),
69 .length = SZ_4K,
70 .type = MT_DEVICE,
71 }, {
72 .virtual = IO_ADDRESS(REALVIEW_PBX_TIMER2_3_BASE),
73 .pfn = __phys_to_pfn(REALVIEW_PBX_TIMER2_3_BASE),
74 .length = SZ_4K,
75 .type = MT_DEVICE,
76 },
77#ifdef CONFIG_PCI
78 {
79 .virtual = PCIX_UNIT_BASE,
80 .pfn = __phys_to_pfn(REALVIEW_PBX_PCI_BASE),
81 .length = REALVIEW_PBX_PCI_BASE_SIZE,
82 .type = MT_DEVICE,
83 },
84#endif
85#ifdef CONFIG_DEBUG_LL
86 {
87 .virtual = IO_ADDRESS(REALVIEW_PBX_UART0_BASE),
88 .pfn = __phys_to_pfn(REALVIEW_PBX_UART0_BASE),
89 .length = SZ_4K,
90 .type = MT_DEVICE,
91 },
92#endif
93};
94
95static struct map_desc realview_local_io_desc[] __initdata = {
96 {
97 .virtual = IO_ADDRESS(REALVIEW_PBX_TILE_GIC_CPU_BASE),
98 .pfn = __phys_to_pfn(REALVIEW_PBX_TILE_GIC_CPU_BASE),
99 .length = SZ_4K,
100 .type = MT_DEVICE,
101 }, {
102 .virtual = IO_ADDRESS(REALVIEW_PBX_TILE_GIC_DIST_BASE),
103 .pfn = __phys_to_pfn(REALVIEW_PBX_TILE_GIC_DIST_BASE),
104 .length = SZ_4K,
105 .type = MT_DEVICE,
106 }, {
107 .virtual = IO_ADDRESS(REALVIEW_PBX_TILE_L220_BASE),
108 .pfn = __phys_to_pfn(REALVIEW_PBX_TILE_L220_BASE),
109 .length = SZ_8K,
110 .type = MT_DEVICE,
111 }
112};
113
114static void __init realview_pbx_map_io(void)
115{
116 iotable_init(realview_pbx_io_desc, ARRAY_SIZE(realview_pbx_io_desc));
117 if (core_tile_pbx11mp() || core_tile_pbxa9mp())
118 iotable_init(realview_local_io_desc, ARRAY_SIZE(realview_local_io_desc));
119}
120
121/*
122 * RealView PBXCore AMBA devices
123 */
124
125#define GPIO2_IRQ { IRQ_PBX_GPIO2, NO_IRQ }
126#define GPIO2_DMA { 0, 0 }
127#define GPIO3_IRQ { IRQ_PBX_GPIO3, NO_IRQ }
128#define GPIO3_DMA { 0, 0 }
129#define AACI_IRQ { IRQ_PBX_AACI, NO_IRQ }
130#define AACI_DMA { 0x80, 0x81 }
131#define MMCI0_IRQ { IRQ_PBX_MMCI0A, IRQ_PBX_MMCI0B }
132#define MMCI0_DMA { 0x84, 0 }
133#define KMI0_IRQ { IRQ_PBX_KMI0, NO_IRQ }
134#define KMI0_DMA { 0, 0 }
135#define KMI1_IRQ { IRQ_PBX_KMI1, NO_IRQ }
136#define KMI1_DMA { 0, 0 }
137#define PBX_SMC_IRQ { NO_IRQ, NO_IRQ }
138#define PBX_SMC_DMA { 0, 0 }
139#define MPMC_IRQ { NO_IRQ, NO_IRQ }
140#define MPMC_DMA { 0, 0 }
141#define PBX_CLCD_IRQ { IRQ_PBX_CLCD, NO_IRQ }
142#define PBX_CLCD_DMA { 0, 0 }
143#define DMAC_IRQ { IRQ_PBX_DMAC, NO_IRQ }
144#define DMAC_DMA { 0, 0 }
145#define SCTL_IRQ { NO_IRQ, NO_IRQ }
146#define SCTL_DMA { 0, 0 }
147#define PBX_WATCHDOG_IRQ { IRQ_PBX_WATCHDOG, NO_IRQ }
148#define PBX_WATCHDOG_DMA { 0, 0 }
149#define PBX_GPIO0_IRQ { IRQ_PBX_GPIO0, NO_IRQ }
150#define PBX_GPIO0_DMA { 0, 0 }
151#define GPIO1_IRQ { IRQ_PBX_GPIO1, NO_IRQ }
152#define GPIO1_DMA { 0, 0 }
153#define PBX_RTC_IRQ { IRQ_PBX_RTC, NO_IRQ }
154#define PBX_RTC_DMA { 0, 0 }
155#define SCI_IRQ { IRQ_PBX_SCI, NO_IRQ }
156#define SCI_DMA { 7, 6 }
157#define PBX_UART0_IRQ { IRQ_PBX_UART0, NO_IRQ }
158#define PBX_UART0_DMA { 15, 14 }
159#define PBX_UART1_IRQ { IRQ_PBX_UART1, NO_IRQ }
160#define PBX_UART1_DMA { 13, 12 }
161#define PBX_UART2_IRQ { IRQ_PBX_UART2, NO_IRQ }
162#define PBX_UART2_DMA { 11, 10 }
163#define PBX_UART3_IRQ { IRQ_PBX_UART3, NO_IRQ }
164#define PBX_UART3_DMA { 0x86, 0x87 }
165#define PBX_SSP_IRQ { IRQ_PBX_SSP, NO_IRQ }
166#define PBX_SSP_DMA { 9, 8 }
167
168/* FPGA Primecells */
169AMBA_DEVICE(aaci, "fpga:04", AACI, NULL);
170AMBA_DEVICE(mmc0, "fpga:05", MMCI0, &realview_mmc0_plat_data);
171AMBA_DEVICE(kmi0, "fpga:06", KMI0, NULL);
172AMBA_DEVICE(kmi1, "fpga:07", KMI1, NULL);
173AMBA_DEVICE(uart3, "fpga:09", PBX_UART3, NULL);
174
175/* DevChip Primecells */
176AMBA_DEVICE(smc, "dev:00", PBX_SMC, NULL);
177AMBA_DEVICE(sctl, "dev:e0", SCTL, NULL);
178AMBA_DEVICE(wdog, "dev:e1", PBX_WATCHDOG, NULL);
179AMBA_DEVICE(gpio0, "dev:e4", PBX_GPIO0, NULL);
180AMBA_DEVICE(gpio1, "dev:e5", GPIO1, NULL);
181AMBA_DEVICE(gpio2, "dev:e6", GPIO2, NULL);
182AMBA_DEVICE(rtc, "dev:e8", PBX_RTC, NULL);
183AMBA_DEVICE(sci0, "dev:f0", SCI, NULL);
184AMBA_DEVICE(uart0, "dev:f1", PBX_UART0, NULL);
185AMBA_DEVICE(uart1, "dev:f2", PBX_UART1, NULL);
186AMBA_DEVICE(uart2, "dev:f3", PBX_UART2, NULL);
187AMBA_DEVICE(ssp0, "dev:f4", PBX_SSP, NULL);
188
189/* Primecells on the NEC ISSP chip */
190AMBA_DEVICE(clcd, "issp:20", PBX_CLCD, &clcd_plat_data);
191AMBA_DEVICE(dmac, "issp:30", DMAC, NULL);
192
193static struct amba_device *amba_devs[] __initdata = {
194 &dmac_device,
195 &uart0_device,
196 &uart1_device,
197 &uart2_device,
198 &uart3_device,
199 &smc_device,
200 &clcd_device,
201 &sctl_device,
202 &wdog_device,
203 &gpio0_device,
204 &gpio1_device,
205 &gpio2_device,
206 &rtc_device,
207 &sci0_device,
208 &ssp0_device,
209 &aaci_device,
210 &mmc0_device,
211 &kmi0_device,
212 &kmi1_device,
213};
214
215/*
216 * RealView PB-X platform devices
217 */
218static struct resource realview_pbx_flash_resources[] = {
219 [0] = {
220 .start = REALVIEW_PBX_FLASH0_BASE,
221 .end = REALVIEW_PBX_FLASH0_BASE + REALVIEW_PBX_FLASH0_SIZE - 1,
222 .flags = IORESOURCE_MEM,
223 },
224 [1] = {
225 .start = REALVIEW_PBX_FLASH1_BASE,
226 .end = REALVIEW_PBX_FLASH1_BASE + REALVIEW_PBX_FLASH1_SIZE - 1,
227 .flags = IORESOURCE_MEM,
228 },
229};
230
231static struct resource realview_pbx_smsc911x_resources[] = {
232 [0] = {
233 .start = REALVIEW_PBX_ETH_BASE,
234 .end = REALVIEW_PBX_ETH_BASE + SZ_64K - 1,
235 .flags = IORESOURCE_MEM,
236 },
237 [1] = {
238 .start = IRQ_PBX_ETH,
239 .end = IRQ_PBX_ETH,
240 .flags = IORESOURCE_IRQ,
241 },
242};
243
244static struct resource realview_pbx_isp1761_resources[] = {
245 [0] = {
246 .start = REALVIEW_PBX_USB_BASE,
247 .end = REALVIEW_PBX_USB_BASE + SZ_128K - 1,
248 .flags = IORESOURCE_MEM,
249 },
250 [1] = {
251 .start = IRQ_PBX_USB,
252 .end = IRQ_PBX_USB,
253 .flags = IORESOURCE_IRQ,
254 },
255};
256
257static void __init gic_init_irq(void)
258{
259 /* ARM PBX on-board GIC */
260 if (core_tile_pbx11mp() || core_tile_pbxa9mp()) {
261 gic_cpu_base_addr = __io_address(REALVIEW_PBX_TILE_GIC_CPU_BASE);
262 gic_dist_init(0, __io_address(REALVIEW_PBX_TILE_GIC_DIST_BASE),
263 29);
264 gic_cpu_init(0, __io_address(REALVIEW_PBX_TILE_GIC_CPU_BASE));
265 } else {
266 gic_cpu_base_addr = __io_address(REALVIEW_PBX_GIC_CPU_BASE);
267 gic_dist_init(0, __io_address(REALVIEW_PBX_GIC_DIST_BASE),
268 IRQ_PBX_GIC_START);
269 gic_cpu_init(0, __io_address(REALVIEW_PBX_GIC_CPU_BASE));
270 }
271}
272
273static void __init realview_pbx_timer_init(void)
274{
275 timer0_va_base = __io_address(REALVIEW_PBX_TIMER0_1_BASE);
276 timer1_va_base = __io_address(REALVIEW_PBX_TIMER0_1_BASE) + 0x20;
277 timer2_va_base = __io_address(REALVIEW_PBX_TIMER2_3_BASE);
278 timer3_va_base = __io_address(REALVIEW_PBX_TIMER2_3_BASE) + 0x20;
279
280#ifdef CONFIG_LOCAL_TIMERS
281 if (core_tile_pbx11mp() || core_tile_pbxa9mp())
282 twd_base = __io_address(REALVIEW_PBX_TILE_TWD_BASE);
283#endif
284 realview_timer_init(IRQ_PBX_TIMER0_1);
285}
286
287static struct sys_timer realview_pbx_timer = {
288 .init = realview_pbx_timer_init,
289};
290
291static void __init realview_pbx_init(void)
292{
293 int i;
294
295#ifdef CONFIG_CACHE_L2X0
296 if (core_tile_pbxa9mp()) {
297 void __iomem *l2x0_base =
298 __io_address(REALVIEW_PBX_TILE_L220_BASE);
299
300 /* set RAM latencies to 1 cycle for eASIC */
301 writel(0, l2x0_base + L2X0_TAG_LATENCY_CTRL);
302 writel(0, l2x0_base + L2X0_DATA_LATENCY_CTRL);
303
304 /* 16KB way size, 8-way associativity, parity disabled
305 * Bits: .. 0 0 0 0 1 00 1 0 1 001 0 000 0 .... .... .... */
306 l2x0_init(l2x0_base, 0x02520000, 0xc0000fff);
307 }
308#endif
309
310 realview_flash_register(realview_pbx_flash_resources,
311 ARRAY_SIZE(realview_pbx_flash_resources));
312 realview_eth_register(NULL, realview_pbx_smsc911x_resources);
313 platform_device_register(&realview_i2c_device);
314 platform_device_register(&realview_cf_device);
315 realview_usb_register(realview_pbx_isp1761_resources);
316
317 for (i = 0; i < ARRAY_SIZE(amba_devs); i++) {
318 struct amba_device *d = amba_devs[i];
319 amba_device_register(d, &iomem_resource);
320 }
321
322#ifdef CONFIG_LEDS
323 leds_event = realview_leds_event;
324#endif
325}
326
327MACHINE_START(REALVIEW_PBX, "ARM-RealView PBX")
328 /* Maintainer: ARM Ltd/Deep Blue Solutions Ltd */
329 .phys_io = REALVIEW_PBX_UART0_BASE,
330 .io_pg_offst = (IO_ADDRESS(REALVIEW_PBX_UART0_BASE) >> 18) & 0xfffc,
331 .boot_params = PHYS_OFFSET + 0x00000100,
332 .map_io = realview_pbx_map_io,
333 .init_irq = gic_init_irq,
334 .timer = &realview_pbx_timer,
335 .init_machine = realview_pbx_init,
336MACHINE_END
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