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>
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>
40 #include <asm/mach/arch.h>
41 #include <asm/mach/flash.h>
42 #include <asm/mach/map.h>
43 #include <asm/mach/time.h>
45 #include <mach/board-pb1176.h>
46 #include <mach/irqs.h>
50 static struct map_desc realview_pb1176_io_desc[] __initdata = {
52 .virtual = IO_ADDRESS(REALVIEW_SYS_BASE),
53 .pfn = __phys_to_pfn(REALVIEW_SYS_BASE),
57 .virtual = IO_ADDRESS(REALVIEW_PB1176_GIC_CPU_BASE),
58 .pfn = __phys_to_pfn(REALVIEW_PB1176_GIC_CPU_BASE),
62 .virtual = IO_ADDRESS(REALVIEW_PB1176_GIC_DIST_BASE),
63 .pfn = __phys_to_pfn(REALVIEW_PB1176_GIC_DIST_BASE),
67 .virtual = IO_ADDRESS(REALVIEW_DC1176_GIC_CPU_BASE),
68 .pfn = __phys_to_pfn(REALVIEW_DC1176_GIC_CPU_BASE),
72 .virtual = IO_ADDRESS(REALVIEW_DC1176_GIC_DIST_BASE),
73 .pfn = __phys_to_pfn(REALVIEW_DC1176_GIC_DIST_BASE),
77 .virtual = IO_ADDRESS(REALVIEW_SCTL_BASE),
78 .pfn = __phys_to_pfn(REALVIEW_SCTL_BASE),
82 .virtual = IO_ADDRESS(REALVIEW_PB1176_TIMER0_1_BASE),
83 .pfn = __phys_to_pfn(REALVIEW_PB1176_TIMER0_1_BASE),
87 .virtual = IO_ADDRESS(REALVIEW_PB1176_TIMER2_3_BASE),
88 .pfn = __phys_to_pfn(REALVIEW_PB1176_TIMER2_3_BASE),
92 .virtual = IO_ADDRESS(REALVIEW_PB1176_L220_BASE),
93 .pfn = __phys_to_pfn(REALVIEW_PB1176_L220_BASE),
97 #ifdef CONFIG_DEBUG_LL
99 .virtual = IO_ADDRESS(REALVIEW_PB1176_UART0_BASE),
100 .pfn = __phys_to_pfn(REALVIEW_PB1176_UART0_BASE),
107 static void __init realview_pb1176_map_io(void)
109 iotable_init(realview_pb1176_io_desc, ARRAY_SIZE(realview_pb1176_io_desc));
112 static struct pl061_platform_data gpio0_plat_data = {
117 static struct pl061_platform_data gpio1_plat_data = {
122 static struct pl061_platform_data gpio2_plat_data = {
127 static struct pl022_ssp_controller ssp0_plat_data = {
134 * RealView PB1176 AMBA devices
136 #define GPIO2_IRQ { IRQ_PB1176_GPIO2, NO_IRQ }
137 #define GPIO2_DMA { 0, 0 }
138 #define GPIO3_IRQ { IRQ_PB1176_GPIO3, NO_IRQ }
139 #define GPIO3_DMA { 0, 0 }
140 #define AACI_IRQ { IRQ_PB1176_AACI, NO_IRQ }
141 #define AACI_DMA { 0x80, 0x81 }
142 #define MMCI0_IRQ { IRQ_PB1176_MMCI0A, IRQ_PB1176_MMCI0B }
143 #define MMCI0_DMA { 0x84, 0 }
144 #define KMI0_IRQ { IRQ_PB1176_KMI0, NO_IRQ }
145 #define KMI0_DMA { 0, 0 }
146 #define KMI1_IRQ { IRQ_PB1176_KMI1, NO_IRQ }
147 #define KMI1_DMA { 0, 0 }
148 #define PB1176_SMC_IRQ { NO_IRQ, NO_IRQ }
149 #define PB1176_SMC_DMA { 0, 0 }
150 #define MPMC_IRQ { NO_IRQ, NO_IRQ }
151 #define MPMC_DMA { 0, 0 }
152 #define PB1176_CLCD_IRQ { IRQ_DC1176_CLCD, NO_IRQ }
153 #define PB1176_CLCD_DMA { 0, 0 }
154 #define SCTL_IRQ { NO_IRQ, NO_IRQ }
155 #define SCTL_DMA { 0, 0 }
156 #define PB1176_WATCHDOG_IRQ { IRQ_DC1176_WATCHDOG, NO_IRQ }
157 #define PB1176_WATCHDOG_DMA { 0, 0 }
158 #define PB1176_GPIO0_IRQ { IRQ_PB1176_GPIO0, NO_IRQ }
159 #define PB1176_GPIO0_DMA { 0, 0 }
160 #define GPIO1_IRQ { IRQ_PB1176_GPIO1, NO_IRQ }
161 #define GPIO1_DMA { 0, 0 }
162 #define PB1176_RTC_IRQ { IRQ_DC1176_RTC, NO_IRQ }
163 #define PB1176_RTC_DMA { 0, 0 }
164 #define SCI_IRQ { IRQ_PB1176_SCI, NO_IRQ }
165 #define SCI_DMA { 7, 6 }
166 #define PB1176_UART0_IRQ { IRQ_DC1176_UART0, NO_IRQ }
167 #define PB1176_UART0_DMA { 15, 14 }
168 #define PB1176_UART1_IRQ { IRQ_DC1176_UART1, NO_IRQ }
169 #define PB1176_UART1_DMA { 13, 12 }
170 #define PB1176_UART2_IRQ { IRQ_DC1176_UART2, NO_IRQ }
171 #define PB1176_UART2_DMA { 11, 10 }
172 #define PB1176_UART3_IRQ { IRQ_DC1176_UART3, NO_IRQ }
173 #define PB1176_UART3_DMA { 0x86, 0x87 }
174 #define PB1176_UART4_IRQ { IRQ_PB1176_UART4, NO_IRQ }
175 #define PB1176_UART4_DMA { 0, 0 }
176 #define PB1176_SSP_IRQ { IRQ_DC1176_SSP, NO_IRQ }
177 #define PB1176_SSP_DMA { 9, 8 }
179 /* FPGA Primecells */
180 AMBA_DEVICE(aaci, "fpga:aaci", AACI, NULL);
181 AMBA_DEVICE(mmc0, "fpga:mmc0", MMCI0, &realview_mmc0_plat_data);
182 AMBA_DEVICE(kmi0, "fpga:kmi0", KMI0, NULL);
183 AMBA_DEVICE(kmi1, "fpga:kmi1", KMI1, NULL);
184 AMBA_DEVICE(uart4, "fpga:uart4", PB1176_UART4, NULL);
186 /* DevChip Primecells */
187 AMBA_DEVICE(smc, "dev:smc", PB1176_SMC, NULL);
188 AMBA_DEVICE(sctl, "dev:sctl", SCTL, NULL);
189 AMBA_DEVICE(wdog, "dev:wdog", PB1176_WATCHDOG, NULL);
190 AMBA_DEVICE(gpio0, "dev:gpio0", PB1176_GPIO0, &gpio0_plat_data);
191 AMBA_DEVICE(gpio1, "dev:gpio1", GPIO1, &gpio1_plat_data);
192 AMBA_DEVICE(gpio2, "dev:gpio2", GPIO2, &gpio2_plat_data);
193 AMBA_DEVICE(rtc, "dev:rtc", PB1176_RTC, NULL);
194 AMBA_DEVICE(sci0, "dev:sci0", SCI, NULL);
195 AMBA_DEVICE(uart0, "dev:uart0", PB1176_UART0, NULL);
196 AMBA_DEVICE(uart1, "dev:uart1", PB1176_UART1, NULL);
197 AMBA_DEVICE(uart2, "dev:uart2", PB1176_UART2, NULL);
198 AMBA_DEVICE(uart3, "dev:uart3", PB1176_UART3, NULL);
199 AMBA_DEVICE(ssp0, "dev:ssp0", PB1176_SSP, &ssp0_plat_data);
200 AMBA_DEVICE(clcd, "dev:clcd", PB1176_CLCD, &clcd_plat_data);
202 static struct amba_device *amba_devs[] __initdata = {
225 * RealView PB1176 platform devices
227 static struct resource realview_pb1176_flash_resources[] = {
229 .start = REALVIEW_PB1176_FLASH_BASE,
230 .end = REALVIEW_PB1176_FLASH_BASE + REALVIEW_PB1176_FLASH_SIZE - 1,
231 .flags = IORESOURCE_MEM,
234 .start = REALVIEW_PB1176_SEC_FLASH_BASE,
235 .end = REALVIEW_PB1176_SEC_FLASH_BASE + REALVIEW_PB1176_SEC_FLASH_SIZE - 1,
236 .flags = IORESOURCE_MEM,
239 #ifdef CONFIG_REALVIEW_PB1176_SECURE_FLASH
240 #define PB1176_FLASH_BLOCKS 2
242 #define PB1176_FLASH_BLOCKS 1
245 static struct resource realview_pb1176_smsc911x_resources[] = {
247 .start = REALVIEW_PB1176_ETH_BASE,
248 .end = REALVIEW_PB1176_ETH_BASE + SZ_64K - 1,
249 .flags = IORESOURCE_MEM,
252 .start = IRQ_PB1176_ETH,
253 .end = IRQ_PB1176_ETH,
254 .flags = IORESOURCE_IRQ,
258 static struct resource realview_pb1176_isp1761_resources[] = {
260 .start = REALVIEW_PB1176_USB_BASE,
261 .end = REALVIEW_PB1176_USB_BASE + SZ_128K - 1,
262 .flags = IORESOURCE_MEM,
265 .start = IRQ_PB1176_USB,
266 .end = IRQ_PB1176_USB,
267 .flags = IORESOURCE_IRQ,
271 static struct resource pmu_resource = {
272 .start = IRQ_DC1176_CORE_PMU,
273 .end = IRQ_DC1176_CORE_PMU,
274 .flags = IORESOURCE_IRQ,
277 static struct platform_device pmu_device = {
279 .id = ARM_PMU_DEVICE_CPU,
281 .resource = &pmu_resource,
284 static struct resource char_lcd_resources[] = {
286 .start = REALVIEW_CHAR_LCD_BASE,
287 .end = (REALVIEW_CHAR_LCD_BASE + SZ_4K - 1),
288 .flags = IORESOURCE_MEM,
291 .start = IRQ_PB1176_CHARLCD,
292 .end = IRQ_PB1176_CHARLCD,
293 .flags = IORESOURCE_IRQ,
297 static struct platform_device char_lcd_device = {
298 .name = "arm-charlcd",
300 .num_resources = ARRAY_SIZE(char_lcd_resources),
301 .resource = char_lcd_resources,
304 static void __init gic_init_irq(void)
306 /* ARM1176 DevChip GIC, primary */
307 gic_cpu_base_addr = __io_address(REALVIEW_DC1176_GIC_CPU_BASE);
308 gic_dist_init(0, __io_address(REALVIEW_DC1176_GIC_DIST_BASE), IRQ_DC1176_GIC_START);
309 gic_cpu_init(0, gic_cpu_base_addr);
311 /* board GIC, secondary */
312 gic_dist_init(1, __io_address(REALVIEW_PB1176_GIC_DIST_BASE), IRQ_PB1176_GIC_START);
313 gic_cpu_init(1, __io_address(REALVIEW_PB1176_GIC_CPU_BASE));
314 gic_cascade_irq(1, IRQ_DC1176_PB_IRQ1);
317 static void __init realview_pb1176_timer_init(void)
319 timer0_va_base = __io_address(REALVIEW_PB1176_TIMER0_1_BASE);
320 timer1_va_base = __io_address(REALVIEW_PB1176_TIMER0_1_BASE) + 0x20;
321 timer2_va_base = __io_address(REALVIEW_PB1176_TIMER2_3_BASE);
322 timer3_va_base = __io_address(REALVIEW_PB1176_TIMER2_3_BASE) + 0x20;
324 realview_timer_init(IRQ_DC1176_TIMER0);
327 static struct sys_timer realview_pb1176_timer = {
328 .init = realview_pb1176_timer_init,
331 static void realview_pb1176_reset(char mode)
333 void __iomem *reset_ctrl = __io_address(REALVIEW_SYS_RESETCTL);
334 void __iomem *lock_ctrl = __io_address(REALVIEW_SYS_LOCK);
335 __raw_writel(REALVIEW_SYS_LOCK_VAL, lock_ctrl);
336 __raw_writel(REALVIEW_PB1176_SYS_SOFT_RESET, reset_ctrl);
339 static void realview_pb1176_fixup(struct machine_desc *mdesc,
340 struct tag *tags, char **from,
341 struct meminfo *meminfo)
344 * RealView PB1176 only has 128MB of RAM mapped at 0.
346 meminfo->bank[0].start = 0;
347 meminfo->bank[0].size = SZ_128M;
348 meminfo->nr_banks = 1;
351 static void __init realview_pb1176_init(void)
355 #ifdef CONFIG_CACHE_L2X0
356 /* 128Kb (16Kb/way) 8-way associativity. evmon/parity/share enabled. */
357 l2x0_init(__io_address(REALVIEW_PB1176_L220_BASE), 0x00730000, 0xfe000fff);
360 realview_flash_register(realview_pb1176_flash_resources,
361 PB1176_FLASH_BLOCKS);
362 realview_eth_register(NULL, realview_pb1176_smsc911x_resources);
363 platform_device_register(&realview_i2c_device);
364 realview_usb_register(realview_pb1176_isp1761_resources);
365 platform_device_register(&pmu_device);
366 platform_device_register(&char_lcd_device);
368 for (i = 0; i < ARRAY_SIZE(amba_devs); i++) {
369 struct amba_device *d = amba_devs[i];
370 amba_device_register(d, &iomem_resource);
374 leds_event = realview_leds_event;
376 realview_reset = realview_pb1176_reset;
379 MACHINE_START(REALVIEW_PB1176, "ARM-RealView PB1176")
380 /* Maintainer: ARM Ltd/Deep Blue Solutions Ltd */
381 .boot_params = PHYS_OFFSET + 0x00000100,
382 .fixup = realview_pb1176_fixup,
383 .map_io = realview_pb1176_map_io,
384 .init_irq = gic_init_irq,
385 .timer = &realview_pb1176_timer,
386 .init_machine = realview_pb1176_init,