2 * linux/arch/arm/mach-realview/realview_pba8.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>
32 #include <asm/mach-types.h>
33 #include <asm/pgtable.h>
34 #include <asm/hardware/gic.h>
36 #include <asm/mach/arch.h>
37 #include <asm/mach/map.h>
38 #include <asm/mach/time.h>
40 #include <mach/hardware.h>
41 #include <mach/board-pba8.h>
42 #include <mach/irqs.h>
46 static struct map_desc realview_pba8_io_desc[] __initdata = {
48 .virtual = IO_ADDRESS(REALVIEW_SYS_BASE),
49 .pfn = __phys_to_pfn(REALVIEW_SYS_BASE),
53 .virtual = IO_ADDRESS(REALVIEW_PBA8_GIC_CPU_BASE),
54 .pfn = __phys_to_pfn(REALVIEW_PBA8_GIC_CPU_BASE),
58 .virtual = IO_ADDRESS(REALVIEW_PBA8_GIC_DIST_BASE),
59 .pfn = __phys_to_pfn(REALVIEW_PBA8_GIC_DIST_BASE),
63 .virtual = IO_ADDRESS(REALVIEW_SCTL_BASE),
64 .pfn = __phys_to_pfn(REALVIEW_SCTL_BASE),
68 .virtual = IO_ADDRESS(REALVIEW_PBA8_TIMER0_1_BASE),
69 .pfn = __phys_to_pfn(REALVIEW_PBA8_TIMER0_1_BASE),
73 .virtual = IO_ADDRESS(REALVIEW_PBA8_TIMER2_3_BASE),
74 .pfn = __phys_to_pfn(REALVIEW_PBA8_TIMER2_3_BASE),
80 .virtual = PCIX_UNIT_BASE,
81 .pfn = __phys_to_pfn(REALVIEW_PBA8_PCI_BASE),
82 .length = REALVIEW_PBA8_PCI_BASE_SIZE,
86 #ifdef CONFIG_DEBUG_LL
88 .virtual = IO_ADDRESS(REALVIEW_PBA8_UART0_BASE),
89 .pfn = __phys_to_pfn(REALVIEW_PBA8_UART0_BASE),
96 static void __init realview_pba8_map_io(void)
98 iotable_init(realview_pba8_io_desc, ARRAY_SIZE(realview_pba8_io_desc));
101 static struct pl061_platform_data gpio0_plat_data = {
105 static struct pl061_platform_data gpio1_plat_data = {
109 static struct pl061_platform_data gpio2_plat_data = {
113 static struct pl022_ssp_controller ssp0_plat_data = {
120 * RealView PBA8Core AMBA devices
123 #define GPIO2_IRQ { IRQ_PBA8_GPIO2 }
124 #define GPIO3_IRQ { IRQ_PBA8_GPIO3 }
125 #define AACI_IRQ { IRQ_PBA8_AACI }
126 #define MMCI0_IRQ { IRQ_PBA8_MMCI0A, IRQ_PBA8_MMCI0B }
127 #define KMI0_IRQ { IRQ_PBA8_KMI0 }
128 #define KMI1_IRQ { IRQ_PBA8_KMI1 }
129 #define PBA8_SMC_IRQ { }
131 #define PBA8_CLCD_IRQ { IRQ_PBA8_CLCD }
132 #define DMAC_IRQ { IRQ_PBA8_DMAC }
134 #define PBA8_WATCHDOG_IRQ { IRQ_PBA8_WATCHDOG }
135 #define PBA8_GPIO0_IRQ { IRQ_PBA8_GPIO0 }
136 #define GPIO1_IRQ { IRQ_PBA8_GPIO1 }
137 #define PBA8_RTC_IRQ { IRQ_PBA8_RTC }
138 #define SCI_IRQ { IRQ_PBA8_SCI }
139 #define PBA8_UART0_IRQ { IRQ_PBA8_UART0 }
140 #define PBA8_UART1_IRQ { IRQ_PBA8_UART1 }
141 #define PBA8_UART2_IRQ { IRQ_PBA8_UART2 }
142 #define PBA8_UART3_IRQ { IRQ_PBA8_UART3 }
143 #define PBA8_SSP_IRQ { IRQ_PBA8_SSP }
145 /* FPGA Primecells */
146 APB_DEVICE(aaci, "fpga:aaci", AACI, NULL);
147 APB_DEVICE(mmc0, "fpga:mmc0", MMCI0, &realview_mmc0_plat_data);
148 APB_DEVICE(kmi0, "fpga:kmi0", KMI0, NULL);
149 APB_DEVICE(kmi1, "fpga:kmi1", KMI1, NULL);
150 APB_DEVICE(uart3, "fpga:uart3", PBA8_UART3, NULL);
152 /* DevChip Primecells */
153 AHB_DEVICE(smc, "dev:smc", PBA8_SMC, NULL);
154 AHB_DEVICE(sctl, "dev:sctl", SCTL, NULL);
155 APB_DEVICE(wdog, "dev:wdog", PBA8_WATCHDOG, NULL);
156 APB_DEVICE(gpio0, "dev:gpio0", PBA8_GPIO0, &gpio0_plat_data);
157 APB_DEVICE(gpio1, "dev:gpio1", GPIO1, &gpio1_plat_data);
158 APB_DEVICE(gpio2, "dev:gpio2", GPIO2, &gpio2_plat_data);
159 APB_DEVICE(rtc, "dev:rtc", PBA8_RTC, NULL);
160 APB_DEVICE(sci0, "dev:sci0", SCI, NULL);
161 APB_DEVICE(uart0, "dev:uart0", PBA8_UART0, NULL);
162 APB_DEVICE(uart1, "dev:uart1", PBA8_UART1, NULL);
163 APB_DEVICE(uart2, "dev:uart2", PBA8_UART2, NULL);
164 APB_DEVICE(ssp0, "dev:ssp0", PBA8_SSP, &ssp0_plat_data);
166 /* Primecells on the NEC ISSP chip */
167 AHB_DEVICE(clcd, "issp:clcd", PBA8_CLCD, &clcd_plat_data);
168 AHB_DEVICE(dmac, "issp:dmac", DMAC, NULL);
170 static struct amba_device *amba_devs[] __initdata = {
193 * RealView PB-A8 platform devices
195 static struct resource realview_pba8_flash_resource[] = {
197 .start = REALVIEW_PBA8_FLASH0_BASE,
198 .end = REALVIEW_PBA8_FLASH0_BASE + REALVIEW_PBA8_FLASH0_SIZE - 1,
199 .flags = IORESOURCE_MEM,
202 .start = REALVIEW_PBA8_FLASH1_BASE,
203 .end = REALVIEW_PBA8_FLASH1_BASE + REALVIEW_PBA8_FLASH1_SIZE - 1,
204 .flags = IORESOURCE_MEM,
208 static struct resource realview_pba8_smsc911x_resources[] = {
210 .start = REALVIEW_PBA8_ETH_BASE,
211 .end = REALVIEW_PBA8_ETH_BASE + SZ_64K - 1,
212 .flags = IORESOURCE_MEM,
215 .start = IRQ_PBA8_ETH,
217 .flags = IORESOURCE_IRQ,
221 static struct resource realview_pba8_isp1761_resources[] = {
223 .start = REALVIEW_PBA8_USB_BASE,
224 .end = REALVIEW_PBA8_USB_BASE + SZ_128K - 1,
225 .flags = IORESOURCE_MEM,
228 .start = IRQ_PBA8_USB,
230 .flags = IORESOURCE_IRQ,
234 static struct resource pmu_resource = {
235 .start = IRQ_PBA8_PMU,
237 .flags = IORESOURCE_IRQ,
240 static struct platform_device pmu_device = {
244 .resource = &pmu_resource,
247 static void __init gic_init_irq(void)
249 /* ARM PB-A8 on-board GIC */
250 gic_init(0, IRQ_PBA8_GIC_START,
251 __io_address(REALVIEW_PBA8_GIC_DIST_BASE),
252 __io_address(REALVIEW_PBA8_GIC_CPU_BASE));
255 static void __init realview_pba8_timer_init(void)
257 timer0_va_base = __io_address(REALVIEW_PBA8_TIMER0_1_BASE);
258 timer1_va_base = __io_address(REALVIEW_PBA8_TIMER0_1_BASE) + 0x20;
259 timer2_va_base = __io_address(REALVIEW_PBA8_TIMER2_3_BASE);
260 timer3_va_base = __io_address(REALVIEW_PBA8_TIMER2_3_BASE) + 0x20;
262 realview_timer_init(IRQ_PBA8_TIMER0_1);
265 static struct sys_timer realview_pba8_timer = {
266 .init = realview_pba8_timer_init,
269 static void realview_pba8_restart(char mode, const char *cmd)
271 void __iomem *reset_ctrl = __io_address(REALVIEW_SYS_RESETCTL);
272 void __iomem *lock_ctrl = __io_address(REALVIEW_SYS_LOCK);
275 * To reset, we hit the on-board reset register
278 __raw_writel(REALVIEW_SYS_LOCK_VAL, lock_ctrl);
279 __raw_writel(0x0000, reset_ctrl);
280 __raw_writel(0x0004, reset_ctrl);
284 static void __init realview_pba8_init(void)
288 realview_flash_register(realview_pba8_flash_resource,
289 ARRAY_SIZE(realview_pba8_flash_resource));
290 realview_eth_register(NULL, realview_pba8_smsc911x_resources);
291 platform_device_register(&realview_i2c_device);
292 platform_device_register(&realview_cf_device);
293 realview_usb_register(realview_pba8_isp1761_resources);
294 platform_device_register(&pmu_device);
296 for (i = 0; i < ARRAY_SIZE(amba_devs); i++) {
297 struct amba_device *d = amba_devs[i];
298 amba_device_register(d, &iomem_resource);
302 MACHINE_START(REALVIEW_PBA8, "ARM-RealView PB-A8")
303 /* Maintainer: ARM Ltd/Deep Blue Solutions Ltd */
304 .atag_offset = 0x100,
305 .fixup = realview_fixup,
306 .map_io = realview_pba8_map_io,
307 .init_early = realview_init_early,
308 .init_irq = gic_init_irq,
309 .timer = &realview_pba8_timer,
310 .handle_irq = gic_handle_irq,
311 .init_machine = realview_pba8_init,
312 #ifdef CONFIG_ZONE_DMA
313 .dma_zone_size = SZ_256M,
315 .restart = realview_pba8_restart,