2 * linux/arch/arm/mach-realview/realview_pb1176.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/sysdev.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>
29 #include <linux/mtd/physmap.h>
30 #include <linux/mtd/partitions.h>
33 #include <mach/hardware.h>
36 #include <asm/mach-types.h>
38 #include <asm/pgtable.h>
39 #include <asm/hardware/gic.h>
40 #include <asm/hardware/cache-l2x0.h>
42 #include <asm/mach/arch.h>
43 #include <asm/mach/flash.h>
44 #include <asm/mach/map.h>
45 #include <asm/mach/time.h>
47 #include <mach/board-pb1176.h>
48 #include <mach/irqs.h>
52 static struct map_desc realview_pb1176_io_desc[] __initdata = {
54 .virtual = IO_ADDRESS(REALVIEW_SYS_BASE),
55 .pfn = __phys_to_pfn(REALVIEW_SYS_BASE),
59 .virtual = IO_ADDRESS(REALVIEW_PB1176_GIC_CPU_BASE),
60 .pfn = __phys_to_pfn(REALVIEW_PB1176_GIC_CPU_BASE),
64 .virtual = IO_ADDRESS(REALVIEW_PB1176_GIC_DIST_BASE),
65 .pfn = __phys_to_pfn(REALVIEW_PB1176_GIC_DIST_BASE),
69 .virtual = IO_ADDRESS(REALVIEW_DC1176_GIC_CPU_BASE),
70 .pfn = __phys_to_pfn(REALVIEW_DC1176_GIC_CPU_BASE),
74 .virtual = IO_ADDRESS(REALVIEW_DC1176_GIC_DIST_BASE),
75 .pfn = __phys_to_pfn(REALVIEW_DC1176_GIC_DIST_BASE),
79 .virtual = IO_ADDRESS(REALVIEW_SCTL_BASE),
80 .pfn = __phys_to_pfn(REALVIEW_SCTL_BASE),
84 .virtual = IO_ADDRESS(REALVIEW_PB1176_TIMER0_1_BASE),
85 .pfn = __phys_to_pfn(REALVIEW_PB1176_TIMER0_1_BASE),
89 .virtual = IO_ADDRESS(REALVIEW_PB1176_TIMER2_3_BASE),
90 .pfn = __phys_to_pfn(REALVIEW_PB1176_TIMER2_3_BASE),
94 .virtual = IO_ADDRESS(REALVIEW_PB1176_L220_BASE),
95 .pfn = __phys_to_pfn(REALVIEW_PB1176_L220_BASE),
99 #ifdef CONFIG_DEBUG_LL
101 .virtual = IO_ADDRESS(REALVIEW_PB1176_UART0_BASE),
102 .pfn = __phys_to_pfn(REALVIEW_PB1176_UART0_BASE),
109 static void __init realview_pb1176_map_io(void)
111 iotable_init(realview_pb1176_io_desc, ARRAY_SIZE(realview_pb1176_io_desc));
114 static struct pl061_platform_data gpio0_plat_data = {
119 static struct pl061_platform_data gpio1_plat_data = {
124 static struct pl061_platform_data gpio2_plat_data = {
129 static struct pl022_ssp_controller ssp0_plat_data = {
136 * RealView PB1176 AMBA devices
138 #define GPIO2_IRQ { IRQ_PB1176_GPIO2, NO_IRQ }
139 #define GPIO3_IRQ { IRQ_PB1176_GPIO3, NO_IRQ }
140 #define AACI_IRQ { IRQ_PB1176_AACI, NO_IRQ }
141 #define MMCI0_IRQ { IRQ_PB1176_MMCI0A, IRQ_PB1176_MMCI0B }
142 #define KMI0_IRQ { IRQ_PB1176_KMI0, NO_IRQ }
143 #define KMI1_IRQ { IRQ_PB1176_KMI1, NO_IRQ }
144 #define PB1176_SMC_IRQ { NO_IRQ, NO_IRQ }
145 #define MPMC_IRQ { NO_IRQ, NO_IRQ }
146 #define PB1176_CLCD_IRQ { IRQ_DC1176_CLCD, NO_IRQ }
147 #define SCTL_IRQ { NO_IRQ, NO_IRQ }
148 #define PB1176_WATCHDOG_IRQ { IRQ_DC1176_WATCHDOG, NO_IRQ }
149 #define PB1176_GPIO0_IRQ { IRQ_PB1176_GPIO0, NO_IRQ }
150 #define GPIO1_IRQ { IRQ_PB1176_GPIO1, NO_IRQ }
151 #define PB1176_RTC_IRQ { IRQ_DC1176_RTC, NO_IRQ }
152 #define SCI_IRQ { IRQ_PB1176_SCI, NO_IRQ }
153 #define PB1176_UART0_IRQ { IRQ_DC1176_UART0, NO_IRQ }
154 #define PB1176_UART1_IRQ { IRQ_DC1176_UART1, NO_IRQ }
155 #define PB1176_UART2_IRQ { IRQ_DC1176_UART2, NO_IRQ }
156 #define PB1176_UART3_IRQ { IRQ_DC1176_UART3, NO_IRQ }
157 #define PB1176_UART4_IRQ { IRQ_PB1176_UART4, NO_IRQ }
158 #define PB1176_SSP_IRQ { IRQ_DC1176_SSP, NO_IRQ }
160 /* FPGA Primecells */
161 AMBA_DEVICE(aaci, "fpga:aaci", AACI, NULL);
162 AMBA_DEVICE(mmc0, "fpga:mmc0", MMCI0, &realview_mmc0_plat_data);
163 AMBA_DEVICE(kmi0, "fpga:kmi0", KMI0, NULL);
164 AMBA_DEVICE(kmi1, "fpga:kmi1", KMI1, NULL);
165 AMBA_DEVICE(uart4, "fpga:uart4", PB1176_UART4, NULL);
167 /* DevChip Primecells */
168 AMBA_DEVICE(smc, "dev:smc", PB1176_SMC, NULL);
169 AMBA_DEVICE(sctl, "dev:sctl", SCTL, NULL);
170 AMBA_DEVICE(wdog, "dev:wdog", PB1176_WATCHDOG, NULL);
171 AMBA_DEVICE(gpio0, "dev:gpio0", PB1176_GPIO0, &gpio0_plat_data);
172 AMBA_DEVICE(gpio1, "dev:gpio1", GPIO1, &gpio1_plat_data);
173 AMBA_DEVICE(gpio2, "dev:gpio2", GPIO2, &gpio2_plat_data);
174 AMBA_DEVICE(rtc, "dev:rtc", PB1176_RTC, NULL);
175 AMBA_DEVICE(sci0, "dev:sci0", SCI, NULL);
176 AMBA_DEVICE(uart0, "dev:uart0", PB1176_UART0, NULL);
177 AMBA_DEVICE(uart1, "dev:uart1", PB1176_UART1, NULL);
178 AMBA_DEVICE(uart2, "dev:uart2", PB1176_UART2, NULL);
179 AMBA_DEVICE(uart3, "dev:uart3", PB1176_UART3, NULL);
180 AMBA_DEVICE(ssp0, "dev:ssp0", PB1176_SSP, &ssp0_plat_data);
181 AMBA_DEVICE(clcd, "dev:clcd", PB1176_CLCD, &clcd_plat_data);
183 static struct amba_device *amba_devs[] __initdata = {
206 * RealView PB1176 platform devices
208 static struct resource realview_pb1176_flash_resources[] = {
210 .start = REALVIEW_PB1176_FLASH_BASE,
211 .end = REALVIEW_PB1176_FLASH_BASE + REALVIEW_PB1176_FLASH_SIZE - 1,
212 .flags = IORESOURCE_MEM,
214 #ifdef CONFIG_REALVIEW_PB1176_SECURE_FLASH
216 .start = REALVIEW_PB1176_SEC_FLASH_BASE,
217 .end = REALVIEW_PB1176_SEC_FLASH_BASE + REALVIEW_PB1176_SEC_FLASH_SIZE - 1,
218 .flags = IORESOURCE_MEM,
223 static struct physmap_flash_data pb1176_rom_pdata = {
224 .probe_type = "map_rom",
229 static struct resource pb1176_rom_resources[] = {
231 * This exposes the PB1176 DevChip ROM as an MTD ROM mapping.
232 * The reference manual states that this is actually a pseudo-ROM
233 * programmed in NVRAM.
236 .start = REALVIEW_DC1176_ROM_BASE,
237 .end = REALVIEW_DC1176_ROM_BASE + SZ_16K - 1,
238 .flags = IORESOURCE_MEM,
242 static struct platform_device pb1176_rom_device = {
243 .name = "physmap-flash",
245 .num_resources = ARRAY_SIZE(pb1176_rom_resources),
246 .resource = pb1176_rom_resources,
248 .platform_data = &pb1176_rom_pdata,
252 static struct resource realview_pb1176_smsc911x_resources[] = {
254 .start = REALVIEW_PB1176_ETH_BASE,
255 .end = REALVIEW_PB1176_ETH_BASE + SZ_64K - 1,
256 .flags = IORESOURCE_MEM,
259 .start = IRQ_PB1176_ETH,
260 .end = IRQ_PB1176_ETH,
261 .flags = IORESOURCE_IRQ,
265 static struct resource realview_pb1176_isp1761_resources[] = {
267 .start = REALVIEW_PB1176_USB_BASE,
268 .end = REALVIEW_PB1176_USB_BASE + SZ_128K - 1,
269 .flags = IORESOURCE_MEM,
272 .start = IRQ_PB1176_USB,
273 .end = IRQ_PB1176_USB,
274 .flags = IORESOURCE_IRQ,
278 static struct resource pmu_resource = {
279 .start = IRQ_DC1176_CORE_PMU,
280 .end = IRQ_DC1176_CORE_PMU,
281 .flags = IORESOURCE_IRQ,
284 static struct platform_device pmu_device = {
286 .id = ARM_PMU_DEVICE_CPU,
288 .resource = &pmu_resource,
291 static struct resource char_lcd_resources[] = {
293 .start = REALVIEW_CHAR_LCD_BASE,
294 .end = (REALVIEW_CHAR_LCD_BASE + SZ_4K - 1),
295 .flags = IORESOURCE_MEM,
298 .start = IRQ_PB1176_CHARLCD,
299 .end = IRQ_PB1176_CHARLCD,
300 .flags = IORESOURCE_IRQ,
304 static struct platform_device char_lcd_device = {
305 .name = "arm-charlcd",
307 .num_resources = ARRAY_SIZE(char_lcd_resources),
308 .resource = char_lcd_resources,
311 static void __init gic_init_irq(void)
313 /* ARM1176 DevChip GIC, primary */
314 gic_init(0, IRQ_DC1176_GIC_START,
315 __io_address(REALVIEW_DC1176_GIC_DIST_BASE),
316 __io_address(REALVIEW_DC1176_GIC_CPU_BASE));
318 /* board GIC, secondary */
319 gic_init(1, IRQ_PB1176_GIC_START,
320 __io_address(REALVIEW_PB1176_GIC_DIST_BASE),
321 __io_address(REALVIEW_PB1176_GIC_CPU_BASE));
322 gic_cascade_irq(1, IRQ_DC1176_PB_IRQ1);
325 static void __init realview_pb1176_timer_init(void)
327 timer0_va_base = __io_address(REALVIEW_PB1176_TIMER0_1_BASE);
328 timer1_va_base = __io_address(REALVIEW_PB1176_TIMER0_1_BASE) + 0x20;
329 timer2_va_base = __io_address(REALVIEW_PB1176_TIMER2_3_BASE);
330 timer3_va_base = __io_address(REALVIEW_PB1176_TIMER2_3_BASE) + 0x20;
332 realview_timer_init(IRQ_DC1176_TIMER0);
335 static struct sys_timer realview_pb1176_timer = {
336 .init = realview_pb1176_timer_init,
339 static void realview_pb1176_restart(char mode, const char *cmd)
341 void __iomem *reset_ctrl = __io_address(REALVIEW_SYS_RESETCTL);
342 void __iomem *lock_ctrl = __io_address(REALVIEW_SYS_LOCK);
343 __raw_writel(REALVIEW_SYS_LOCK_VAL, lock_ctrl);
344 __raw_writel(REALVIEW_PB1176_SYS_SOFT_RESET, reset_ctrl);
348 static void realview_pb1176_fixup(struct tag *tags, char **from,
349 struct meminfo *meminfo)
352 * RealView PB1176 only has 128MB of RAM mapped at 0.
354 meminfo->bank[0].start = 0;
355 meminfo->bank[0].size = SZ_128M;
356 meminfo->nr_banks = 1;
359 static void __init realview_pb1176_init(void)
363 #ifdef CONFIG_CACHE_L2X0
364 /* 128Kb (16Kb/way) 8-way associativity. evmon/parity/share enabled. */
365 l2x0_init(__io_address(REALVIEW_PB1176_L220_BASE), 0x00730000, 0xfe000fff);
368 realview_flash_register(realview_pb1176_flash_resources,
369 ARRAY_SIZE(realview_pb1176_flash_resources));
370 platform_device_register(&pb1176_rom_device);
371 realview_eth_register(NULL, realview_pb1176_smsc911x_resources);
372 platform_device_register(&realview_i2c_device);
373 realview_usb_register(realview_pb1176_isp1761_resources);
374 platform_device_register(&pmu_device);
375 platform_device_register(&char_lcd_device);
377 for (i = 0; i < ARRAY_SIZE(amba_devs); i++) {
378 struct amba_device *d = amba_devs[i];
379 amba_device_register(d, &iomem_resource);
383 leds_event = realview_leds_event;
387 MACHINE_START(REALVIEW_PB1176, "ARM-RealView PB1176")
388 /* Maintainer: ARM Ltd/Deep Blue Solutions Ltd */
389 .atag_offset = 0x100,
390 .fixup = realview_pb1176_fixup,
391 .map_io = realview_pb1176_map_io,
392 .init_early = realview_init_early,
393 .init_irq = gic_init_irq,
394 .timer = &realview_pb1176_timer,
395 .init_machine = realview_pb1176_init,
396 #ifdef CONFIG_ZONE_DMA
397 .dma_zone_size = SZ_256M,
399 .restart = realview_pb1176_restart,