2 * linux/arch/arm/mach-realview/realview_eb.c
4 * Copyright (C) 2004 ARM Limited
5 * Copyright (C) 2000 Deep Blue Solutions Ltd
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.
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.
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
22 #include <linux/init.h>
23 #include <linux/platform_device.h>
24 #include <linux/device.h>
25 #include <linux/amba/bus.h>
26 #include <linux/amba/pl061.h>
27 #include <linux/amba/mmci.h>
28 #include <linux/amba/pl022.h>
31 #include <mach/hardware.h>
34 #include <asm/mach-types.h>
36 #include <asm/pgtable.h>
37 #include <asm/hardware/gic.h>
38 #include <asm/hardware/cache-l2x0.h>
39 #include <asm/localtimer.h>
41 #include <asm/mach/arch.h>
42 #include <asm/mach/map.h>
43 #include <asm/mach/time.h>
45 #include <mach/board-eb.h>
46 #include <mach/irqs.h>
50 static struct map_desc realview_eb_io_desc
[] __initdata
= {
52 .virtual = IO_ADDRESS(REALVIEW_SYS_BASE
),
53 .pfn
= __phys_to_pfn(REALVIEW_SYS_BASE
),
57 .virtual = IO_ADDRESS(REALVIEW_EB_GIC_CPU_BASE
),
58 .pfn
= __phys_to_pfn(REALVIEW_EB_GIC_CPU_BASE
),
62 .virtual = IO_ADDRESS(REALVIEW_EB_GIC_DIST_BASE
),
63 .pfn
= __phys_to_pfn(REALVIEW_EB_GIC_DIST_BASE
),
67 .virtual = IO_ADDRESS(REALVIEW_SCTL_BASE
),
68 .pfn
= __phys_to_pfn(REALVIEW_SCTL_BASE
),
72 .virtual = IO_ADDRESS(REALVIEW_EB_TIMER0_1_BASE
),
73 .pfn
= __phys_to_pfn(REALVIEW_EB_TIMER0_1_BASE
),
77 .virtual = IO_ADDRESS(REALVIEW_EB_TIMER2_3_BASE
),
78 .pfn
= __phys_to_pfn(REALVIEW_EB_TIMER2_3_BASE
),
82 #ifdef CONFIG_DEBUG_LL
84 .virtual = IO_ADDRESS(REALVIEW_EB_UART0_BASE
),
85 .pfn
= __phys_to_pfn(REALVIEW_EB_UART0_BASE
),
92 static struct map_desc realview_eb11mp_io_desc
[] __initdata
= {
94 .virtual = IO_ADDRESS(REALVIEW_EB11MP_SCU_BASE
),
95 .pfn
= __phys_to_pfn(REALVIEW_EB11MP_SCU_BASE
),
99 .virtual = IO_ADDRESS(REALVIEW_EB11MP_GIC_DIST_BASE
),
100 .pfn
= __phys_to_pfn(REALVIEW_EB11MP_GIC_DIST_BASE
),
104 .virtual = IO_ADDRESS(REALVIEW_EB11MP_L220_BASE
),
105 .pfn
= __phys_to_pfn(REALVIEW_EB11MP_L220_BASE
),
111 static void __init
realview_eb_map_io(void)
113 iotable_init(realview_eb_io_desc
, ARRAY_SIZE(realview_eb_io_desc
));
114 if (core_tile_eb11mp() || core_tile_a9mp())
115 iotable_init(realview_eb11mp_io_desc
, ARRAY_SIZE(realview_eb11mp_io_desc
));
118 static struct pl061_platform_data gpio0_plat_data
= {
122 static struct pl061_platform_data gpio1_plat_data
= {
126 static struct pl061_platform_data gpio2_plat_data
= {
130 static struct pl022_ssp_controller ssp0_plat_data
= {
137 * RealView EB AMBA devices
141 * These devices are connected via the core APB bridge
143 #define GPIO2_IRQ { IRQ_EB_GPIO2, NO_IRQ }
144 #define GPIO3_IRQ { IRQ_EB_GPIO3, NO_IRQ }
146 #define AACI_IRQ { IRQ_EB_AACI, NO_IRQ }
147 #define MMCI0_IRQ { IRQ_EB_MMCI0A, IRQ_EB_MMCI0B }
148 #define KMI0_IRQ { IRQ_EB_KMI0, NO_IRQ }
149 #define KMI1_IRQ { IRQ_EB_KMI1, NO_IRQ }
152 * These devices are connected directly to the multi-layer AHB switch
154 #define EB_SMC_IRQ { NO_IRQ, NO_IRQ }
155 #define MPMC_IRQ { NO_IRQ, NO_IRQ }
156 #define EB_CLCD_IRQ { IRQ_EB_CLCD, NO_IRQ }
157 #define DMAC_IRQ { IRQ_EB_DMA, NO_IRQ }
160 * These devices are connected via the core APB bridge
162 #define SCTL_IRQ { NO_IRQ, NO_IRQ }
163 #define EB_WATCHDOG_IRQ { IRQ_EB_WDOG, NO_IRQ }
164 #define EB_GPIO0_IRQ { IRQ_EB_GPIO0, NO_IRQ }
165 #define GPIO1_IRQ { IRQ_EB_GPIO1, NO_IRQ }
166 #define EB_RTC_IRQ { IRQ_EB_RTC, NO_IRQ }
169 * These devices are connected via the DMA APB bridge
171 #define SCI_IRQ { IRQ_EB_SCI, NO_IRQ }
172 #define EB_UART0_IRQ { IRQ_EB_UART0, NO_IRQ }
173 #define EB_UART1_IRQ { IRQ_EB_UART1, NO_IRQ }
174 #define EB_UART2_IRQ { IRQ_EB_UART2, NO_IRQ }
175 #define EB_UART3_IRQ { IRQ_EB_UART3, NO_IRQ }
176 #define EB_SSP_IRQ { IRQ_EB_SSP, NO_IRQ }
178 /* FPGA Primecells */
179 AMBA_DEVICE(aaci
, "fpga:aaci", AACI
, NULL
);
180 AMBA_DEVICE(mmc0
, "fpga:mmc0", MMCI0
, &realview_mmc0_plat_data
);
181 AMBA_DEVICE(kmi0
, "fpga:kmi0", KMI0
, NULL
);
182 AMBA_DEVICE(kmi1
, "fpga:kmi1", KMI1
, NULL
);
183 AMBA_DEVICE(uart3
, "fpga:uart3", EB_UART3
, NULL
);
185 /* DevChip Primecells */
186 AMBA_DEVICE(smc
, "dev:smc", EB_SMC
, NULL
);
187 AMBA_DEVICE(clcd
, "dev:clcd", EB_CLCD
, &clcd_plat_data
);
188 AMBA_DEVICE(dmac
, "dev:dmac", DMAC
, NULL
);
189 AMBA_DEVICE(sctl
, "dev:sctl", SCTL
, NULL
);
190 AMBA_DEVICE(wdog
, "dev:wdog", EB_WATCHDOG
, NULL
);
191 AMBA_DEVICE(gpio0
, "dev:gpio0", EB_GPIO0
, &gpio0_plat_data
);
192 AMBA_DEVICE(gpio1
, "dev:gpio1", GPIO1
, &gpio1_plat_data
);
193 AMBA_DEVICE(gpio2
, "dev:gpio2", GPIO2
, &gpio2_plat_data
);
194 AMBA_DEVICE(rtc
, "dev:rtc", EB_RTC
, NULL
);
195 AMBA_DEVICE(sci0
, "dev:sci0", SCI
, NULL
);
196 AMBA_DEVICE(uart0
, "dev:uart0", EB_UART0
, NULL
);
197 AMBA_DEVICE(uart1
, "dev:uart1", EB_UART1
, NULL
);
198 AMBA_DEVICE(uart2
, "dev:uart2", EB_UART2
, NULL
);
199 AMBA_DEVICE(ssp0
, "dev:ssp0", EB_SSP
, &ssp0_plat_data
);
201 static struct amba_device
*amba_devs
[] __initdata
= {
224 * RealView EB platform devices
226 static struct resource realview_eb_flash_resource
= {
227 .start
= REALVIEW_EB_FLASH_BASE
,
228 .end
= REALVIEW_EB_FLASH_BASE
+ REALVIEW_EB_FLASH_SIZE
- 1,
229 .flags
= IORESOURCE_MEM
,
232 static struct resource realview_eb_eth_resources
[] = {
234 .start
= REALVIEW_EB_ETH_BASE
,
235 .end
= REALVIEW_EB_ETH_BASE
+ SZ_64K
- 1,
236 .flags
= IORESOURCE_MEM
,
241 .flags
= IORESOURCE_IRQ
,
246 * Detect and register the correct Ethernet device. RealView/EB rev D
247 * platforms use the newer SMSC LAN9118 Ethernet chip
249 static int eth_device_register(void)
251 void __iomem
*eth_addr
= ioremap(REALVIEW_EB_ETH_BASE
, SZ_4K
);
252 const char *name
= NULL
;
258 idrev
= readl(eth_addr
+ 0x50);
259 if ((idrev
& 0xFFFF0000) != 0x01180000)
260 /* SMSC LAN9118 not present, use LAN91C111 instead */
264 return realview_eth_register(name
, realview_eb_eth_resources
);
267 static struct resource realview_eb_isp1761_resources
[] = {
269 .start
= REALVIEW_EB_USB_BASE
,
270 .end
= REALVIEW_EB_USB_BASE
+ SZ_128K
- 1,
271 .flags
= IORESOURCE_MEM
,
276 .flags
= IORESOURCE_IRQ
,
280 static struct resource pmu_resources
[] = {
282 .start
= IRQ_EB11MP_PMU_CPU0
,
283 .end
= IRQ_EB11MP_PMU_CPU0
,
284 .flags
= IORESOURCE_IRQ
,
287 .start
= IRQ_EB11MP_PMU_CPU1
,
288 .end
= IRQ_EB11MP_PMU_CPU1
,
289 .flags
= IORESOURCE_IRQ
,
292 .start
= IRQ_EB11MP_PMU_CPU2
,
293 .end
= IRQ_EB11MP_PMU_CPU2
,
294 .flags
= IORESOURCE_IRQ
,
297 .start
= IRQ_EB11MP_PMU_CPU3
,
298 .end
= IRQ_EB11MP_PMU_CPU3
,
299 .flags
= IORESOURCE_IRQ
,
303 static struct platform_device pmu_device
= {
305 .id
= ARM_PMU_DEVICE_CPU
,
306 .num_resources
= ARRAY_SIZE(pmu_resources
),
307 .resource
= pmu_resources
,
310 static struct resource char_lcd_resources
[] = {
312 .start
= REALVIEW_CHAR_LCD_BASE
,
313 .end
= (REALVIEW_CHAR_LCD_BASE
+ SZ_4K
- 1),
314 .flags
= IORESOURCE_MEM
,
317 .start
= IRQ_EB_CHARLCD
,
318 .end
= IRQ_EB_CHARLCD
,
319 .flags
= IORESOURCE_IRQ
,
323 static struct platform_device char_lcd_device
= {
324 .name
= "arm-charlcd",
326 .num_resources
= ARRAY_SIZE(char_lcd_resources
),
327 .resource
= char_lcd_resources
,
330 static void __init
gic_init_irq(void)
332 if (core_tile_eb11mp() || core_tile_a9mp()) {
333 unsigned int pldctrl
;
336 writel(0x0000a05f, __io_address(REALVIEW_SYS_LOCK
));
337 pldctrl
= readl(__io_address(REALVIEW_SYS_BASE
) + REALVIEW_EB11MP_SYS_PLD_CTRL1
);
338 pldctrl
|= 0x00800000;
339 writel(pldctrl
, __io_address(REALVIEW_SYS_BASE
) + REALVIEW_EB11MP_SYS_PLD_CTRL1
);
340 writel(0x00000000, __io_address(REALVIEW_SYS_LOCK
));
342 /* core tile GIC, primary */
343 gic_init(0, 29, __io_address(REALVIEW_EB11MP_GIC_DIST_BASE
),
344 __io_address(REALVIEW_EB11MP_GIC_CPU_BASE
));
346 #ifndef CONFIG_REALVIEW_EB_ARM11MP_REVB
347 /* board GIC, secondary */
348 gic_init(1, 96, __io_address(REALVIEW_EB_GIC_DIST_BASE
),
349 __io_address(REALVIEW_EB_GIC_CPU_BASE
));
350 gic_cascade_irq(1, IRQ_EB11MP_EB_IRQ1
);
353 /* board GIC, primary */
354 gic_init(0, 29, __io_address(REALVIEW_EB_GIC_DIST_BASE
),
355 __io_address(REALVIEW_EB_GIC_CPU_BASE
));
360 * Fix up the IRQ numbers for the RealView EB/ARM11MPCore tile
362 static void realview_eb11mp_fixup(void)
365 dmac_device
.irq
[0] = IRQ_EB11MP_DMA
;
366 uart0_device
.irq
[0] = IRQ_EB11MP_UART0
;
367 uart1_device
.irq
[0] = IRQ_EB11MP_UART1
;
368 uart2_device
.irq
[0] = IRQ_EB11MP_UART2
;
369 uart3_device
.irq
[0] = IRQ_EB11MP_UART3
;
370 clcd_device
.irq
[0] = IRQ_EB11MP_CLCD
;
371 wdog_device
.irq
[0] = IRQ_EB11MP_WDOG
;
372 gpio0_device
.irq
[0] = IRQ_EB11MP_GPIO0
;
373 gpio1_device
.irq
[0] = IRQ_EB11MP_GPIO1
;
374 gpio2_device
.irq
[0] = IRQ_EB11MP_GPIO2
;
375 rtc_device
.irq
[0] = IRQ_EB11MP_RTC
;
376 sci0_device
.irq
[0] = IRQ_EB11MP_SCI
;
377 ssp0_device
.irq
[0] = IRQ_EB11MP_SSP
;
378 aaci_device
.irq
[0] = IRQ_EB11MP_AACI
;
379 mmc0_device
.irq
[0] = IRQ_EB11MP_MMCI0A
;
380 mmc0_device
.irq
[1] = IRQ_EB11MP_MMCI0B
;
381 kmi0_device
.irq
[0] = IRQ_EB11MP_KMI0
;
382 kmi1_device
.irq
[0] = IRQ_EB11MP_KMI1
;
384 /* platform devices */
385 realview_eb_eth_resources
[1].start
= IRQ_EB11MP_ETH
;
386 realview_eb_eth_resources
[1].end
= IRQ_EB11MP_ETH
;
387 realview_eb_isp1761_resources
[1].start
= IRQ_EB11MP_USB
;
388 realview_eb_isp1761_resources
[1].end
= IRQ_EB11MP_USB
;
391 static void __init
realview_eb_timer_init(void)
393 unsigned int timer_irq
;
395 timer0_va_base
= __io_address(REALVIEW_EB_TIMER0_1_BASE
);
396 timer1_va_base
= __io_address(REALVIEW_EB_TIMER0_1_BASE
) + 0x20;
397 timer2_va_base
= __io_address(REALVIEW_EB_TIMER2_3_BASE
);
398 timer3_va_base
= __io_address(REALVIEW_EB_TIMER2_3_BASE
) + 0x20;
400 if (core_tile_eb11mp() || core_tile_a9mp()) {
401 #ifdef CONFIG_LOCAL_TIMERS
402 twd_base
= __io_address(REALVIEW_EB11MP_TWD_BASE
);
404 timer_irq
= IRQ_EB11MP_TIMER0_1
;
406 timer_irq
= IRQ_EB_TIMER0_1
;
408 realview_timer_init(timer_irq
);
411 static struct sys_timer realview_eb_timer
= {
412 .init
= realview_eb_timer_init
,
415 static void realview_eb_restart(char mode
, const char *cmd
)
417 void __iomem
*reset_ctrl
= __io_address(REALVIEW_SYS_RESETCTL
);
418 void __iomem
*lock_ctrl
= __io_address(REALVIEW_SYS_LOCK
);
421 * To reset, we hit the on-board reset register
424 __raw_writel(REALVIEW_SYS_LOCK_VAL
, lock_ctrl
);
425 if (core_tile_eb11mp())
426 __raw_writel(0x0008, reset_ctrl
);
430 static void __init
realview_eb_init(void)
434 if (core_tile_eb11mp() || core_tile_a9mp()) {
435 realview_eb11mp_fixup();
437 #ifdef CONFIG_CACHE_L2X0
438 /* 1MB (128KB/way), 8-way associativity, evmon/parity/share enabled
439 * Bits: .... ...0 0111 1001 0000 .... .... .... */
440 l2x0_init(__io_address(REALVIEW_EB11MP_L220_BASE
), 0x00790000, 0xfe000fff);
442 platform_device_register(&pmu_device
);
445 realview_flash_register(&realview_eb_flash_resource
, 1);
446 platform_device_register(&realview_i2c_device
);
447 platform_device_register(&char_lcd_device
);
448 eth_device_register();
449 realview_usb_register(realview_eb_isp1761_resources
);
451 for (i
= 0; i
< ARRAY_SIZE(amba_devs
); i
++) {
452 struct amba_device
*d
= amba_devs
[i
];
453 amba_device_register(d
, &iomem_resource
);
457 leds_event
= realview_leds_event
;
461 MACHINE_START(REALVIEW_EB
, "ARM-RealView EB")
462 /* Maintainer: ARM Ltd/Deep Blue Solutions Ltd */
463 .atag_offset
= 0x100,
464 .fixup
= realview_fixup
,
465 .map_io
= realview_eb_map_io
,
466 .init_early
= realview_init_early
,
467 .init_irq
= gic_init_irq
,
468 .timer
= &realview_eb_timer
,
469 .handle_irq
= gic_handle_irq
,
470 .init_machine
= realview_eb_init
,
471 #ifdef CONFIG_ZONE_DMA
472 .dma_zone_size
= SZ_256M
,
474 .restart
= realview_eb_restart
,