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Bahadir Balbana0316b22008-04-18 22:43:15 +01001/*
2 * linux/arch/arm/mach-realview/realview_pb1176.c
3 *
4 * Copyright (C) 2008 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 as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
11 *
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.
16 *
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
20 */
21
22#include <linux/init.h>
23#include <linux/platform_device.h>
24#include <linux/sysdev.h>
25#include <linux/amba/bus.h>
Russell Kingeb7fffa2009-07-05 22:41:31 +010026#include <linux/amba/pl061.h>
Linus Walleij6ef297f2009-09-22 14:29:36 +010027#include <linux/amba/mmci.h>
Linus Walleijd6ada862010-07-14 23:58:38 +010028#include <linux/amba/pl022.h>
Russell Kingfced80c2008-09-06 12:10:45 +010029#include <linux/io.h>
Bahadir Balbana0316b22008-04-18 22:43:15 +010030
Russell Kinga09e64f2008-08-05 16:14:15 +010031#include <mach/hardware.h>
Bahadir Balbana0316b22008-04-18 22:43:15 +010032#include <asm/irq.h>
33#include <asm/leds.h>
34#include <asm/mach-types.h>
Will Deaconf417cba2010-04-15 10:16:26 +010035#include <asm/pmu.h>
Catalin Marinascc9897d2010-06-21 15:12:40 +010036#include <asm/pgtable.h>
Bahadir Balbana0316b22008-04-18 22:43:15 +010037#include <asm/hardware/gic.h>
Bahadir Balbana0316b22008-04-18 22:43:15 +010038#include <asm/hardware/cache-l2x0.h>
39
40#include <asm/mach/arch.h>
41#include <asm/mach/flash.h>
42#include <asm/mach/map.h>
Bahadir Balbana0316b22008-04-18 22:43:15 +010043#include <asm/mach/time.h>
44
Russell Kinga09e64f2008-08-05 16:14:15 +010045#include <mach/board-pb1176.h>
46#include <mach/irqs.h>
Bahadir Balbana0316b22008-04-18 22:43:15 +010047
48#include "core.h"
Bahadir Balbana0316b22008-04-18 22:43:15 +010049
50static struct map_desc realview_pb1176_io_desc[] __initdata = {
51 {
52 .virtual = IO_ADDRESS(REALVIEW_SYS_BASE),
53 .pfn = __phys_to_pfn(REALVIEW_SYS_BASE),
54 .length = SZ_4K,
55 .type = MT_DEVICE,
56 }, {
57 .virtual = IO_ADDRESS(REALVIEW_PB1176_GIC_CPU_BASE),
58 .pfn = __phys_to_pfn(REALVIEW_PB1176_GIC_CPU_BASE),
59 .length = SZ_4K,
60 .type = MT_DEVICE,
61 }, {
62 .virtual = IO_ADDRESS(REALVIEW_PB1176_GIC_DIST_BASE),
63 .pfn = __phys_to_pfn(REALVIEW_PB1176_GIC_DIST_BASE),
64 .length = SZ_4K,
65 .type = MT_DEVICE,
66 }, {
67 .virtual = IO_ADDRESS(REALVIEW_DC1176_GIC_CPU_BASE),
68 .pfn = __phys_to_pfn(REALVIEW_DC1176_GIC_CPU_BASE),
69 .length = SZ_4K,
70 .type = MT_DEVICE,
71 }, {
72 .virtual = IO_ADDRESS(REALVIEW_DC1176_GIC_DIST_BASE),
73 .pfn = __phys_to_pfn(REALVIEW_DC1176_GIC_DIST_BASE),
74 .length = SZ_4K,
75 .type = MT_DEVICE,
76 }, {
77 .virtual = IO_ADDRESS(REALVIEW_SCTL_BASE),
78 .pfn = __phys_to_pfn(REALVIEW_SCTL_BASE),
79 .length = SZ_4K,
80 .type = MT_DEVICE,
81 }, {
82 .virtual = IO_ADDRESS(REALVIEW_PB1176_TIMER0_1_BASE),
83 .pfn = __phys_to_pfn(REALVIEW_PB1176_TIMER0_1_BASE),
84 .length = SZ_4K,
85 .type = MT_DEVICE,
86 }, {
87 .virtual = IO_ADDRESS(REALVIEW_PB1176_TIMER2_3_BASE),
88 .pfn = __phys_to_pfn(REALVIEW_PB1176_TIMER2_3_BASE),
89 .length = SZ_4K,
90 .type = MT_DEVICE,
91 }, {
92 .virtual = IO_ADDRESS(REALVIEW_PB1176_L220_BASE),
93 .pfn = __phys_to_pfn(REALVIEW_PB1176_L220_BASE),
94 .length = SZ_8K,
95 .type = MT_DEVICE,
96 },
97#ifdef CONFIG_DEBUG_LL
98 {
99 .virtual = IO_ADDRESS(REALVIEW_PB1176_UART0_BASE),
100 .pfn = __phys_to_pfn(REALVIEW_PB1176_UART0_BASE),
101 .length = SZ_4K,
102 .type = MT_DEVICE,
103 },
104#endif
105};
106
107static void __init realview_pb1176_map_io(void)
108{
109 iotable_init(realview_pb1176_io_desc, ARRAY_SIZE(realview_pb1176_io_desc));
110}
111
Russell Kingeb7fffa2009-07-05 22:41:31 +0100112static struct pl061_platform_data gpio0_plat_data = {
113 .gpio_base = 0,
114 .irq_base = -1,
115};
116
117static struct pl061_platform_data gpio1_plat_data = {
118 .gpio_base = 8,
119 .irq_base = -1,
120};
121
122static struct pl061_platform_data gpio2_plat_data = {
123 .gpio_base = 16,
124 .irq_base = -1,
125};
126
Linus Walleijd6ada862010-07-14 23:58:38 +0100127static struct pl022_ssp_controller ssp0_plat_data = {
128 .bus_id = 0,
129 .enable_dma = 0,
130 .num_chipselect = 1,
131};
132
Bahadir Balbana0316b22008-04-18 22:43:15 +0100133/*
134 * RealView PB1176 AMBA devices
135 */
136#define GPIO2_IRQ { IRQ_PB1176_GPIO2, NO_IRQ }
Bahadir Balbana0316b22008-04-18 22:43:15 +0100137#define GPIO3_IRQ { IRQ_PB1176_GPIO3, NO_IRQ }
Bahadir Balbana0316b22008-04-18 22:43:15 +0100138#define AACI_IRQ { IRQ_PB1176_AACI, NO_IRQ }
Bahadir Balbana0316b22008-04-18 22:43:15 +0100139#define MMCI0_IRQ { IRQ_PB1176_MMCI0A, IRQ_PB1176_MMCI0B }
Bahadir Balbana0316b22008-04-18 22:43:15 +0100140#define KMI0_IRQ { IRQ_PB1176_KMI0, NO_IRQ }
Bahadir Balbana0316b22008-04-18 22:43:15 +0100141#define KMI1_IRQ { IRQ_PB1176_KMI1, NO_IRQ }
Bahadir Balbana0316b22008-04-18 22:43:15 +0100142#define PB1176_SMC_IRQ { NO_IRQ, NO_IRQ }
Bahadir Balbana0316b22008-04-18 22:43:15 +0100143#define MPMC_IRQ { NO_IRQ, NO_IRQ }
Bahadir Balbana0316b22008-04-18 22:43:15 +0100144#define PB1176_CLCD_IRQ { IRQ_DC1176_CLCD, NO_IRQ }
Bahadir Balbana0316b22008-04-18 22:43:15 +0100145#define SCTL_IRQ { NO_IRQ, NO_IRQ }
Bahadir Balbana0316b22008-04-18 22:43:15 +0100146#define PB1176_WATCHDOG_IRQ { IRQ_DC1176_WATCHDOG, NO_IRQ }
Bahadir Balbana0316b22008-04-18 22:43:15 +0100147#define PB1176_GPIO0_IRQ { IRQ_PB1176_GPIO0, NO_IRQ }
Bahadir Balbana0316b22008-04-18 22:43:15 +0100148#define GPIO1_IRQ { IRQ_PB1176_GPIO1, NO_IRQ }
Bahadir Balbana0316b22008-04-18 22:43:15 +0100149#define PB1176_RTC_IRQ { IRQ_DC1176_RTC, NO_IRQ }
Bahadir Balbana0316b22008-04-18 22:43:15 +0100150#define SCI_IRQ { IRQ_PB1176_SCI, NO_IRQ }
Bahadir Balbana0316b22008-04-18 22:43:15 +0100151#define PB1176_UART0_IRQ { IRQ_DC1176_UART0, NO_IRQ }
Bahadir Balbana0316b22008-04-18 22:43:15 +0100152#define PB1176_UART1_IRQ { IRQ_DC1176_UART1, NO_IRQ }
Bahadir Balbana0316b22008-04-18 22:43:15 +0100153#define PB1176_UART2_IRQ { IRQ_DC1176_UART2, NO_IRQ }
Bahadir Balbana0316b22008-04-18 22:43:15 +0100154#define PB1176_UART3_IRQ { IRQ_DC1176_UART3, NO_IRQ }
Linus Walleij48f1d5a2010-07-02 10:24:03 +0100155#define PB1176_UART4_IRQ { IRQ_PB1176_UART4, NO_IRQ }
Linus Walleijd6ada862010-07-14 23:58:38 +0100156#define PB1176_SSP_IRQ { IRQ_DC1176_SSP, NO_IRQ }
Bahadir Balbana0316b22008-04-18 22:43:15 +0100157
158/* FPGA Primecells */
Linus Walleij43215322009-09-21 12:30:32 +0100159AMBA_DEVICE(aaci, "fpga:aaci", AACI, NULL);
160AMBA_DEVICE(mmc0, "fpga:mmc0", MMCI0, &realview_mmc0_plat_data);
161AMBA_DEVICE(kmi0, "fpga:kmi0", KMI0, NULL);
162AMBA_DEVICE(kmi1, "fpga:kmi1", KMI1, NULL);
Linus Walleij48f1d5a2010-07-02 10:24:03 +0100163AMBA_DEVICE(uart4, "fpga:uart4", PB1176_UART4, NULL);
Bahadir Balbana0316b22008-04-18 22:43:15 +0100164
165/* DevChip Primecells */
Linus Walleij43215322009-09-21 12:30:32 +0100166AMBA_DEVICE(smc, "dev:smc", PB1176_SMC, NULL);
167AMBA_DEVICE(sctl, "dev:sctl", SCTL, NULL);
168AMBA_DEVICE(wdog, "dev:wdog", PB1176_WATCHDOG, NULL);
169AMBA_DEVICE(gpio0, "dev:gpio0", PB1176_GPIO0, &gpio0_plat_data);
170AMBA_DEVICE(gpio1, "dev:gpio1", GPIO1, &gpio1_plat_data);
171AMBA_DEVICE(gpio2, "dev:gpio2", GPIO2, &gpio2_plat_data);
172AMBA_DEVICE(rtc, "dev:rtc", PB1176_RTC, NULL);
173AMBA_DEVICE(sci0, "dev:sci0", SCI, NULL);
174AMBA_DEVICE(uart0, "dev:uart0", PB1176_UART0, NULL);
175AMBA_DEVICE(uart1, "dev:uart1", PB1176_UART1, NULL);
176AMBA_DEVICE(uart2, "dev:uart2", PB1176_UART2, NULL);
Linus Walleij48f1d5a2010-07-02 10:24:03 +0100177AMBA_DEVICE(uart3, "dev:uart3", PB1176_UART3, NULL);
Linus Walleijd6ada862010-07-14 23:58:38 +0100178AMBA_DEVICE(ssp0, "dev:ssp0", PB1176_SSP, &ssp0_plat_data);
Linus Walleij48f1d5a2010-07-02 10:24:03 +0100179AMBA_DEVICE(clcd, "dev:clcd", PB1176_CLCD, &clcd_plat_data);
Bahadir Balbana0316b22008-04-18 22:43:15 +0100180
181static struct amba_device *amba_devs[] __initdata = {
Bahadir Balbana0316b22008-04-18 22:43:15 +0100182 &uart0_device,
183 &uart1_device,
184 &uart2_device,
185 &uart3_device,
Linus Walleij48f1d5a2010-07-02 10:24:03 +0100186 &uart4_device,
Bahadir Balbana0316b22008-04-18 22:43:15 +0100187 &smc_device,
188 &clcd_device,
189 &sctl_device,
190 &wdog_device,
191 &gpio0_device,
192 &gpio1_device,
193 &gpio2_device,
194 &rtc_device,
195 &sci0_device,
196 &ssp0_device,
197 &aaci_device,
198 &mmc0_device,
199 &kmi0_device,
200 &kmi1_device,
201};
202
203/*
204 * RealView PB1176 platform devices
205 */
Catalin Marinasaf607742009-05-30 13:56:13 +0100206static struct resource realview_pb1176_flash_resources[] = {
207 [0] = {
208 .start = REALVIEW_PB1176_FLASH_BASE,
209 .end = REALVIEW_PB1176_FLASH_BASE + REALVIEW_PB1176_FLASH_SIZE - 1,
210 .flags = IORESOURCE_MEM,
211 },
212 [1] = {
213 .start = REALVIEW_PB1176_SEC_FLASH_BASE,
214 .end = REALVIEW_PB1176_SEC_FLASH_BASE + REALVIEW_PB1176_SEC_FLASH_SIZE - 1,
215 .flags = IORESOURCE_MEM,
216 },
Bahadir Balbana0316b22008-04-18 22:43:15 +0100217};
Catalin Marinasaf607742009-05-30 13:56:13 +0100218#ifdef CONFIG_REALVIEW_PB1176_SECURE_FLASH
219#define PB1176_FLASH_BLOCKS 2
220#else
221#define PB1176_FLASH_BLOCKS 1
222#endif
Bahadir Balbana0316b22008-04-18 22:43:15 +0100223
224static struct resource realview_pb1176_smsc911x_resources[] = {
225 [0] = {
226 .start = REALVIEW_PB1176_ETH_BASE,
227 .end = REALVIEW_PB1176_ETH_BASE + SZ_64K - 1,
228 .flags = IORESOURCE_MEM,
229 },
230 [1] = {
231 .start = IRQ_PB1176_ETH,
232 .end = IRQ_PB1176_ETH,
233 .flags = IORESOURCE_IRQ,
234 },
235};
236
Catalin Marinas7db21712009-02-12 16:00:21 +0100237static struct resource realview_pb1176_isp1761_resources[] = {
238 [0] = {
239 .start = REALVIEW_PB1176_USB_BASE,
240 .end = REALVIEW_PB1176_USB_BASE + SZ_128K - 1,
241 .flags = IORESOURCE_MEM,
242 },
243 [1] = {
244 .start = IRQ_PB1176_USB,
245 .end = IRQ_PB1176_USB,
246 .flags = IORESOURCE_IRQ,
247 },
248};
249
Will Deaconf417cba2010-04-15 10:16:26 +0100250static struct resource pmu_resource = {
251 .start = IRQ_DC1176_CORE_PMU,
252 .end = IRQ_DC1176_CORE_PMU,
253 .flags = IORESOURCE_IRQ,
254};
255
256static struct platform_device pmu_device = {
257 .name = "arm-pmu",
258 .id = ARM_PMU_DEVICE_CPU,
259 .num_resources = 1,
260 .resource = &pmu_resource,
261};
262
Linus Walleijd161edf2010-07-17 12:34:25 +0100263static struct resource char_lcd_resources[] = {
264 {
265 .start = REALVIEW_CHAR_LCD_BASE,
266 .end = (REALVIEW_CHAR_LCD_BASE + SZ_4K - 1),
267 .flags = IORESOURCE_MEM,
268 },
269 {
270 .start = IRQ_PB1176_CHARLCD,
271 .end = IRQ_PB1176_CHARLCD,
272 .flags = IORESOURCE_IRQ,
273 },
274};
275
276static struct platform_device char_lcd_device = {
277 .name = "arm-charlcd",
278 .id = -1,
279 .num_resources = ARRAY_SIZE(char_lcd_resources),
280 .resource = char_lcd_resources,
281};
282
Bahadir Balbana0316b22008-04-18 22:43:15 +0100283static void __init gic_init_irq(void)
284{
285 /* ARM1176 DevChip GIC, primary */
Russell Kingb580b892010-12-04 15:55:14 +0000286 gic_init(0, IRQ_DC1176_GIC_START,
287 __io_address(REALVIEW_DC1176_GIC_DIST_BASE),
Russell Kingff2e27a2010-12-04 16:13:29 +0000288 __io_address(REALVIEW_DC1176_GIC_CPU_BASE));
Bahadir Balbana0316b22008-04-18 22:43:15 +0100289
290 /* board GIC, secondary */
Russell Kingb580b892010-12-04 15:55:14 +0000291 gic_init(1, IRQ_PB1176_GIC_START,
292 __io_address(REALVIEW_PB1176_GIC_DIST_BASE),
293 __io_address(REALVIEW_PB1176_GIC_CPU_BASE));
Bahadir Balbana0316b22008-04-18 22:43:15 +0100294 gic_cascade_irq(1, IRQ_DC1176_PB_IRQ1);
295}
296
297static void __init realview_pb1176_timer_init(void)
298{
299 timer0_va_base = __io_address(REALVIEW_PB1176_TIMER0_1_BASE);
300 timer1_va_base = __io_address(REALVIEW_PB1176_TIMER0_1_BASE) + 0x20;
301 timer2_va_base = __io_address(REALVIEW_PB1176_TIMER2_3_BASE);
302 timer3_va_base = __io_address(REALVIEW_PB1176_TIMER2_3_BASE) + 0x20;
303
304 realview_timer_init(IRQ_DC1176_TIMER0);
305}
306
307static struct sys_timer realview_pb1176_timer = {
308 .init = realview_pb1176_timer_init,
309};
310
Philby John426fcd22009-10-28 19:09:12 +0100311static void realview_pb1176_reset(char mode)
312{
Colin Tuckley4c9f8be2010-01-11 11:09:15 +0100313 void __iomem *reset_ctrl = __io_address(REALVIEW_SYS_RESETCTL);
314 void __iomem *lock_ctrl = __io_address(REALVIEW_SYS_LOCK);
315 __raw_writel(REALVIEW_SYS_LOCK_VAL, lock_ctrl);
316 __raw_writel(REALVIEW_PB1176_SYS_SOFT_RESET, reset_ctrl);
Philby John426fcd22009-10-28 19:09:12 +0100317}
318
Catalin Marinas5b39d152009-11-04 12:19:04 +0000319static void realview_pb1176_fixup(struct machine_desc *mdesc,
320 struct tag *tags, char **from,
321 struct meminfo *meminfo)
322{
323 /*
324 * RealView PB1176 only has 128MB of RAM mapped at 0.
325 */
326 meminfo->bank[0].start = 0;
327 meminfo->bank[0].size = SZ_128M;
328 meminfo->nr_banks = 1;
329}
330
Bahadir Balbana0316b22008-04-18 22:43:15 +0100331static void __init realview_pb1176_init(void)
332{
333 int i;
334
Catalin Marinasba927952008-04-18 22:43:17 +0100335#ifdef CONFIG_CACHE_L2X0
Bahadir Balbana0316b22008-04-18 22:43:15 +0100336 /* 128Kb (16Kb/way) 8-way associativity. evmon/parity/share enabled. */
337 l2x0_init(__io_address(REALVIEW_PB1176_L220_BASE), 0x00730000, 0xfe000fff);
Catalin Marinasba927952008-04-18 22:43:17 +0100338#endif
Bahadir Balbana0316b22008-04-18 22:43:15 +0100339
Catalin Marinasaf607742009-05-30 13:56:13 +0100340 realview_flash_register(realview_pb1176_flash_resources,
341 PB1176_FLASH_BLOCKS);
Catalin Marinas0a381332008-12-01 14:54:58 +0000342 realview_eth_register(NULL, realview_pb1176_smsc911x_resources);
Catalin Marinas533ad5e2009-02-12 15:58:20 +0100343 platform_device_register(&realview_i2c_device);
Catalin Marinas7db21712009-02-12 16:00:21 +0100344 realview_usb_register(realview_pb1176_isp1761_resources);
Will Deaconf417cba2010-04-15 10:16:26 +0100345 platform_device_register(&pmu_device);
Linus Walleijd161edf2010-07-17 12:34:25 +0100346 platform_device_register(&char_lcd_device);
Bahadir Balbana0316b22008-04-18 22:43:15 +0100347
348 for (i = 0; i < ARRAY_SIZE(amba_devs); i++) {
349 struct amba_device *d = amba_devs[i];
350 amba_device_register(d, &iomem_resource);
351 }
352
353#ifdef CONFIG_LEDS
354 leds_event = realview_leds_event;
355#endif
Philby John426fcd22009-10-28 19:09:12 +0100356 realview_reset = realview_pb1176_reset;
Bahadir Balbana0316b22008-04-18 22:43:15 +0100357}
358
359MACHINE_START(REALVIEW_PB1176, "ARM-RealView PB1176")
360 /* Maintainer: ARM Ltd/Deep Blue Solutions Ltd */
Russell Kingb75c1782011-01-04 19:03:16 +0000361 .boot_params = PLAT_PHYS_OFFSET + 0x00000100,
Catalin Marinas5b39d152009-11-04 12:19:04 +0000362 .fixup = realview_pb1176_fixup,
Bahadir Balbana0316b22008-04-18 22:43:15 +0100363 .map_io = realview_pb1176_map_io,
Russell King631e55f2011-01-11 13:05:01 +0000364 .init_early = realview_init_early,
Bahadir Balbana0316b22008-04-18 22:43:15 +0100365 .init_irq = gic_init_irq,
366 .timer = &realview_pb1176_timer,
367 .init_machine = realview_pb1176_init,
Nicolas Pitre00e91252011-07-05 22:28:09 -0400368#ifdef CONFIG_ZONE_DMA
369 .dma_zone_size = SZ_256M,
370#endif
Bahadir Balbana0316b22008-04-18 22:43:15 +0100371MACHINE_END