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