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 }
144 #define GPIO3_IRQ { IRQ_EB_GPIO3 }
146 #define AACI_IRQ { IRQ_EB_AACI }
147 #define MMCI0_IRQ { IRQ_EB_MMCI0A, IRQ_EB_MMCI0B }
148 #define KMI0_IRQ { IRQ_EB_KMI0 }
149 #define KMI1_IRQ { IRQ_EB_KMI1 }
152 * These devices are connected directly to the multi-layer AHB switch
154 #define EB_SMC_IRQ { }
156 #define EB_CLCD_IRQ { IRQ_EB_CLCD }
157 #define DMAC_IRQ { IRQ_EB_DMA }
160 * These devices are connected via the core APB bridge
163 #define EB_WATCHDOG_IRQ { IRQ_EB_WDOG }
164 #define EB_GPIO0_IRQ { IRQ_EB_GPIO0 }
165 #define GPIO1_IRQ { IRQ_EB_GPIO1 }
166 #define EB_RTC_IRQ { IRQ_EB_RTC }
169 * These devices are connected via the DMA APB bridge
171 #define SCI_IRQ { IRQ_EB_SCI }
172 #define EB_UART0_IRQ { IRQ_EB_UART0 }
173 #define EB_UART1_IRQ { IRQ_EB_UART1 }
174 #define EB_UART2_IRQ { IRQ_EB_UART2 }
175 #define EB_UART3_IRQ { IRQ_EB_UART3 }
176 #define EB_SSP_IRQ { IRQ_EB_SSP }
178 /* FPGA Primecells */
179 APB_DEVICE(aaci, "fpga:aaci", AACI, NULL);
180 APB_DEVICE(mmc0, "fpga:mmc0", MMCI0, &realview_mmc0_plat_data);
181 APB_DEVICE(kmi0, "fpga:kmi0", KMI0, NULL);
182 APB_DEVICE(kmi1, "fpga:kmi1", KMI1, NULL);
183 APB_DEVICE(uart3, "fpga:uart3", EB_UART3, NULL);
185 /* DevChip Primecells */
186 AHB_DEVICE(smc, "dev:smc", EB_SMC, NULL);
187 AHB_DEVICE(clcd, "dev:clcd", EB_CLCD, &clcd_plat_data);
188 AHB_DEVICE(dmac, "dev:dmac", DMAC, NULL);
189 AHB_DEVICE(sctl, "dev:sctl", SCTL, NULL);
190 APB_DEVICE(wdog, "dev:wdog", EB_WATCHDOG, NULL);
191 APB_DEVICE(gpio0, "dev:gpio0", EB_GPIO0, &gpio0_plat_data);
192 APB_DEVICE(gpio1, "dev:gpio1", GPIO1, &gpio1_plat_data);
193 APB_DEVICE(gpio2, "dev:gpio2", GPIO2, &gpio2_plat_data);
194 APB_DEVICE(rtc, "dev:rtc", EB_RTC, NULL);
195 APB_DEVICE(sci0, "dev:sci0", SCI, NULL);
196 APB_DEVICE(uart0, "dev:uart0", EB_UART0, NULL);
197 APB_DEVICE(uart1, "dev:uart1", EB_UART1, NULL);
198 APB_DEVICE(uart2, "dev:uart2", EB_UART2, NULL);
199 APB_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,