2 * linux/arch/arm/mach-realview/realview_pb11mp.c
4 * Copyright (C) 2008 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>
30 #include <linux/irqchip/arm-gic.h>
31 #include <linux/platform_data/clk-realview.h>
32 #include <linux/reboot.h>
36 #include <asm/mach-types.h>
37 #include <asm/pgtable.h>
38 #include <asm/hardware/cache-l2x0.h>
39 #include <asm/smp_twd.h>
41 #include <asm/mach/arch.h>
42 #include <asm/mach/flash.h>
43 #include <asm/mach/map.h>
44 #include <asm/mach/time.h>
45 #include <asm/outercache.h>
47 #include "board-pb11mp.h"
48 #include "irqs-pb11mp.h"
52 static struct map_desc realview_pb11mp_io_desc
[] __initdata
= {
54 .virtual = IO_ADDRESS(REALVIEW_SYS_BASE
),
55 .pfn
= __phys_to_pfn(REALVIEW_SYS_BASE
),
59 .virtual = IO_ADDRESS(REALVIEW_PB11MP_GIC_CPU_BASE
),
60 .pfn
= __phys_to_pfn(REALVIEW_PB11MP_GIC_CPU_BASE
),
64 .virtual = IO_ADDRESS(REALVIEW_PB11MP_GIC_DIST_BASE
),
65 .pfn
= __phys_to_pfn(REALVIEW_PB11MP_GIC_DIST_BASE
),
68 }, { /* Maps the SCU, GIC CPU interface, TWD, GIC DIST */
69 .virtual = IO_ADDRESS(REALVIEW_TC11MP_PRIV_MEM_BASE
),
70 .pfn
= __phys_to_pfn(REALVIEW_TC11MP_PRIV_MEM_BASE
),
71 .length
= REALVIEW_TC11MP_PRIV_MEM_SIZE
,
74 .virtual = IO_ADDRESS(REALVIEW_SCTL_BASE
),
75 .pfn
= __phys_to_pfn(REALVIEW_SCTL_BASE
),
79 .virtual = IO_ADDRESS(REALVIEW_PB11MP_TIMER0_1_BASE
),
80 .pfn
= __phys_to_pfn(REALVIEW_PB11MP_TIMER0_1_BASE
),
84 .virtual = IO_ADDRESS(REALVIEW_PB11MP_TIMER2_3_BASE
),
85 .pfn
= __phys_to_pfn(REALVIEW_PB11MP_TIMER2_3_BASE
),
89 .virtual = IO_ADDRESS(REALVIEW_TC11MP_L220_BASE
),
90 .pfn
= __phys_to_pfn(REALVIEW_TC11MP_L220_BASE
),
94 #ifdef CONFIG_DEBUG_LL
96 .virtual = IO_ADDRESS(REALVIEW_PB11MP_UART0_BASE
),
97 .pfn
= __phys_to_pfn(REALVIEW_PB11MP_UART0_BASE
),
104 static void __init
realview_pb11mp_map_io(void)
106 iotable_init(realview_pb11mp_io_desc
, ARRAY_SIZE(realview_pb11mp_io_desc
));
109 static struct pl061_platform_data gpio0_plat_data
= {
113 static struct pl061_platform_data gpio1_plat_data
= {
117 static struct pl061_platform_data gpio2_plat_data
= {
121 static struct pl022_ssp_controller ssp0_plat_data
= {
128 * RealView PB11MPCore AMBA devices
131 #define GPIO2_IRQ { IRQ_PB11MP_GPIO2 }
132 #define GPIO3_IRQ { IRQ_PB11MP_GPIO3 }
133 #define AACI_IRQ { IRQ_TC11MP_AACI }
134 #define MMCI0_IRQ { IRQ_TC11MP_MMCI0A, IRQ_TC11MP_MMCI0B }
135 #define KMI0_IRQ { IRQ_TC11MP_KMI0 }
136 #define KMI1_IRQ { IRQ_TC11MP_KMI1 }
137 #define PB11MP_SMC_IRQ { }
139 #define PB11MP_CLCD_IRQ { IRQ_PB11MP_CLCD }
140 #define DMAC_IRQ { IRQ_PB11MP_DMAC }
142 #define PB11MP_WATCHDOG_IRQ { IRQ_PB11MP_WATCHDOG }
143 #define PB11MP_GPIO0_IRQ { IRQ_PB11MP_GPIO0 }
144 #define GPIO1_IRQ { IRQ_PB11MP_GPIO1 }
145 #define PB11MP_RTC_IRQ { IRQ_TC11MP_RTC }
146 #define SCI_IRQ { IRQ_PB11MP_SCI }
147 #define PB11MP_UART0_IRQ { IRQ_TC11MP_UART0 }
148 #define PB11MP_UART1_IRQ { IRQ_TC11MP_UART1 }
149 #define PB11MP_UART2_IRQ { IRQ_PB11MP_UART2 }
150 #define PB11MP_UART3_IRQ { IRQ_PB11MP_UART3 }
151 #define PB11MP_SSP_IRQ { IRQ_PB11MP_SSP }
153 /* FPGA Primecells */
154 APB_DEVICE(aaci
, "fpga:aaci", AACI
, NULL
);
155 APB_DEVICE(mmc0
, "fpga:mmc0", MMCI0
, &realview_mmc0_plat_data
);
156 APB_DEVICE(kmi0
, "fpga:kmi0", KMI0
, NULL
);
157 APB_DEVICE(kmi1
, "fpga:kmi1", KMI1
, NULL
);
158 APB_DEVICE(uart3
, "fpga:uart3", PB11MP_UART3
, NULL
);
160 /* DevChip Primecells */
161 AHB_DEVICE(smc
, "dev:smc", PB11MP_SMC
, NULL
);
162 AHB_DEVICE(sctl
, "dev:sctl", SCTL
, NULL
);
163 APB_DEVICE(wdog
, "dev:wdog", PB11MP_WATCHDOG
, NULL
);
164 APB_DEVICE(gpio0
, "dev:gpio0", PB11MP_GPIO0
, &gpio0_plat_data
);
165 APB_DEVICE(gpio1
, "dev:gpio1", GPIO1
, &gpio1_plat_data
);
166 APB_DEVICE(gpio2
, "dev:gpio2", GPIO2
, &gpio2_plat_data
);
167 APB_DEVICE(rtc
, "dev:rtc", PB11MP_RTC
, NULL
);
168 APB_DEVICE(sci0
, "dev:sci0", SCI
, NULL
);
169 APB_DEVICE(uart0
, "dev:uart0", PB11MP_UART0
, NULL
);
170 APB_DEVICE(uart1
, "dev:uart1", PB11MP_UART1
, NULL
);
171 APB_DEVICE(uart2
, "dev:uart2", PB11MP_UART2
, NULL
);
172 APB_DEVICE(ssp0
, "dev:ssp0", PB11MP_SSP
, &ssp0_plat_data
);
174 /* Primecells on the NEC ISSP chip */
175 AHB_DEVICE(clcd
, "issp:clcd", PB11MP_CLCD
, &clcd_plat_data
);
176 AHB_DEVICE(dmac
, "issp:dmac", DMAC
, NULL
);
178 static struct amba_device
*amba_devs
[] __initdata
= {
201 * RealView PB11MPCore platform devices
203 static struct resource realview_pb11mp_flash_resource
[] = {
205 .start
= REALVIEW_PB11MP_FLASH0_BASE
,
206 .end
= REALVIEW_PB11MP_FLASH0_BASE
+ REALVIEW_PB11MP_FLASH0_SIZE
- 1,
207 .flags
= IORESOURCE_MEM
,
210 .start
= REALVIEW_PB11MP_FLASH1_BASE
,
211 .end
= REALVIEW_PB11MP_FLASH1_BASE
+ REALVIEW_PB11MP_FLASH1_SIZE
- 1,
212 .flags
= IORESOURCE_MEM
,
216 static struct resource realview_pb11mp_smsc911x_resources
[] = {
218 .start
= REALVIEW_PB11MP_ETH_BASE
,
219 .end
= REALVIEW_PB11MP_ETH_BASE
+ SZ_64K
- 1,
220 .flags
= IORESOURCE_MEM
,
223 .start
= IRQ_TC11MP_ETH
,
224 .end
= IRQ_TC11MP_ETH
,
225 .flags
= IORESOURCE_IRQ
,
229 static struct resource realview_pb11mp_isp1761_resources
[] = {
231 .start
= REALVIEW_PB11MP_USB_BASE
,
232 .end
= REALVIEW_PB11MP_USB_BASE
+ SZ_128K
- 1,
233 .flags
= IORESOURCE_MEM
,
236 .start
= IRQ_TC11MP_USB
,
237 .end
= IRQ_TC11MP_USB
,
238 .flags
= IORESOURCE_IRQ
,
242 static struct resource pmu_resources
[] = {
244 .start
= IRQ_TC11MP_PMU_CPU0
,
245 .end
= IRQ_TC11MP_PMU_CPU0
,
246 .flags
= IORESOURCE_IRQ
,
249 .start
= IRQ_TC11MP_PMU_CPU1
,
250 .end
= IRQ_TC11MP_PMU_CPU1
,
251 .flags
= IORESOURCE_IRQ
,
254 .start
= IRQ_TC11MP_PMU_CPU2
,
255 .end
= IRQ_TC11MP_PMU_CPU2
,
256 .flags
= IORESOURCE_IRQ
,
259 .start
= IRQ_TC11MP_PMU_CPU3
,
260 .end
= IRQ_TC11MP_PMU_CPU3
,
261 .flags
= IORESOURCE_IRQ
,
265 static struct platform_device pmu_device
= {
268 .num_resources
= ARRAY_SIZE(pmu_resources
),
269 .resource
= pmu_resources
,
272 static void __init
gic_init_irq(void)
274 unsigned int pldctrl
;
276 /* new irq mode with no DCC */
277 writel(0x0000a05f, __io_address(REALVIEW_SYS_LOCK
));
278 pldctrl
= readl(__io_address(REALVIEW_SYS_BASE
) + REALVIEW_PB11MP_SYS_PLD_CTRL1
);
280 writel(pldctrl
, __io_address(REALVIEW_SYS_BASE
) + REALVIEW_PB11MP_SYS_PLD_CTRL1
);
281 writel(0x00000000, __io_address(REALVIEW_SYS_LOCK
));
283 /* ARM11MPCore test chip GIC, primary */
284 gic_init(0, 29, __io_address(REALVIEW_TC11MP_GIC_DIST_BASE
),
285 __io_address(REALVIEW_TC11MP_GIC_CPU_BASE
));
287 /* board GIC, secondary */
288 gic_init(1, IRQ_PB11MP_GIC_START
,
289 __io_address(REALVIEW_PB11MP_GIC_DIST_BASE
),
290 __io_address(REALVIEW_PB11MP_GIC_CPU_BASE
));
291 gic_cascade_irq(1, IRQ_TC11MP_PB_IRQ1
);
294 #ifdef CONFIG_HAVE_ARM_TWD
295 static DEFINE_TWD_LOCAL_TIMER(twd_local_timer
,
296 REALVIEW_TC11MP_TWD_BASE
,
299 static void __init
realview_pb11mp_twd_init(void)
301 int err
= twd_local_timer_register(&twd_local_timer
);
303 pr_err("twd_local_timer_register failed %d\n", err
);
306 #define realview_pb11mp_twd_init() do {} while(0)
309 static void __init
realview_pb11mp_timer_init(void)
311 timer0_va_base
= __io_address(REALVIEW_PB11MP_TIMER0_1_BASE
);
312 timer1_va_base
= __io_address(REALVIEW_PB11MP_TIMER0_1_BASE
) + 0x20;
313 timer2_va_base
= __io_address(REALVIEW_PB11MP_TIMER2_3_BASE
);
314 timer3_va_base
= __io_address(REALVIEW_PB11MP_TIMER2_3_BASE
) + 0x20;
316 realview_clk_init(__io_address(REALVIEW_SYS_BASE
), false);
317 realview_timer_init(IRQ_TC11MP_TIMER0_1
);
318 realview_pb11mp_twd_init();
321 static void realview_pb11mp_restart(enum reboot_mode mode
, const char *cmd
)
323 void __iomem
*reset_ctrl
= __io_address(REALVIEW_SYS_RESETCTL
);
324 void __iomem
*lock_ctrl
= __io_address(REALVIEW_SYS_LOCK
);
327 * To reset, we hit the on-board reset register
330 __raw_writel(REALVIEW_SYS_LOCK_VAL
, lock_ctrl
);
331 __raw_writel(0x0000, reset_ctrl
);
332 __raw_writel(0x0004, reset_ctrl
);
336 static void __init
realview_pb11mp_init(void)
340 #ifdef CONFIG_CACHE_L2X0
342 * The PL220 needs to be manually configured as the hardware
343 * doesn't report the correct sizes.
344 * 1MB (128KB/way), 8-way associativity, event monitor and
345 * parity enabled, ignore share bit, no force write allocate
346 * Bits: .... ...0 0111 1001 0000 .... .... ....
348 l2x0_init(__io_address(REALVIEW_TC11MP_L220_BASE
), 0x00790000, 0xfe000fff);
350 * due to a bug in the l220 cache controller, we must not call
351 * the sync function. stub it out here instead!
353 outer_cache
.sync
= NULL
;
356 realview_flash_register(realview_pb11mp_flash_resource
,
357 ARRAY_SIZE(realview_pb11mp_flash_resource
));
358 realview_eth_register(NULL
, realview_pb11mp_smsc911x_resources
);
359 platform_device_register(&realview_i2c_device
);
360 platform_device_register(&realview_cf_device
);
361 platform_device_register(&realview_leds_device
);
362 realview_usb_register(realview_pb11mp_isp1761_resources
);
363 platform_device_register(&pmu_device
);
365 for (i
= 0; i
< ARRAY_SIZE(amba_devs
); i
++) {
366 struct amba_device
*d
= amba_devs
[i
];
367 amba_device_register(d
, &iomem_resource
);
371 MACHINE_START(REALVIEW_PB11MP
, "ARM-RealView PB11MPCore")
372 /* Maintainer: ARM Ltd/Deep Blue Solutions Ltd */
373 .atag_offset
= 0x100,
374 .smp
= smp_ops(realview_smp_ops
),
375 .fixup
= realview_fixup
,
376 .map_io
= realview_pb11mp_map_io
,
377 .init_early
= realview_init_early
,
378 .init_irq
= gic_init_irq
,
379 .init_time
= realview_pb11mp_timer_init
,
380 .init_machine
= realview_pb11mp_init
,
381 #ifdef CONFIG_ZONE_DMA
382 .dma_zone_size
= SZ_256M
,
384 .restart
= realview_pb11mp_restart
,