1fe294d0bf9dba0717c619218453a675712d23fc
[linux-2.6.git] / arch / arm / mach-realview / realview_pbx.c
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
44 static 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
94 static 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
113 static 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 */
168 AMBA_DEVICE(aaci,       "fpga:04",      AACI,           NULL);
169 AMBA_DEVICE(mmc0,       "fpga:05",      MMCI0,          &realview_mmc0_plat_data);
170 AMBA_DEVICE(kmi0,       "fpga:06",      KMI0,           NULL);
171 AMBA_DEVICE(kmi1,       "fpga:07",      KMI1,           NULL);
172 AMBA_DEVICE(uart3,      "fpga:09",      PBX_UART3,      NULL);
173
174 /* DevChip Primecells */
175 AMBA_DEVICE(smc,        "dev:00",       PBX_SMC,        NULL);
176 AMBA_DEVICE(sctl,       "dev:e0",       SCTL,           NULL);
177 AMBA_DEVICE(wdog,       "dev:e1",       PBX_WATCHDOG,   NULL);
178 AMBA_DEVICE(gpio0,      "dev:e4",       PBX_GPIO0,      NULL);
179 AMBA_DEVICE(gpio1,      "dev:e5",       GPIO1,          NULL);
180 AMBA_DEVICE(gpio2,      "dev:e6",       GPIO2,          NULL);
181 AMBA_DEVICE(rtc,        "dev:e8",       PBX_RTC,        NULL);
182 AMBA_DEVICE(sci0,       "dev:f0",       SCI,            NULL);
183 AMBA_DEVICE(uart0,      "dev:f1",       PBX_UART0,      NULL);
184 AMBA_DEVICE(uart1,      "dev:f2",       PBX_UART1,      NULL);
185 AMBA_DEVICE(uart2,      "dev:f3",       PBX_UART2,      NULL);
186 AMBA_DEVICE(ssp0,       "dev:f4",       PBX_SSP,        NULL);
187
188 /* Primecells on the NEC ISSP chip */
189 AMBA_DEVICE(clcd,       "issp:20",      PBX_CLCD,       &clcd_plat_data);
190 AMBA_DEVICE(dmac,       "issp:30",      DMAC,           NULL);
191
192 static 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  */
217 static 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
230 static 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
243 static 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
256 static 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
272 static 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
286 static struct sys_timer realview_pbx_timer = {
287         .init           = realview_pbx_timer_init,
288 };
289
290 static 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
326 MACHINE_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,
335 MACHINE_END