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/sysdev.h>
25 #include <linux/amba/bus.h>
26 #include <linux/amba/pl061.h>
27 #include <linux/amba/mmci.h>
32 #include <asm/mach-types.h>
33 #include <asm/hardware/gic.h>
35 #include <asm/mach/arch.h>
36 #include <asm/mach/map.h>
37 #include <asm/mach/time.h>
39 #include <mach/hardware.h>
40 #include <mach/board-pba8.h>
41 #include <mach/irqs.h>
45 static struct map_desc realview_pba8_io_desc[] __initdata = {
47 .virtual = IO_ADDRESS(REALVIEW_SYS_BASE),
48 .pfn = __phys_to_pfn(REALVIEW_SYS_BASE),
52 .virtual = IO_ADDRESS(REALVIEW_PBA8_GIC_CPU_BASE),
53 .pfn = __phys_to_pfn(REALVIEW_PBA8_GIC_CPU_BASE),
57 .virtual = IO_ADDRESS(REALVIEW_PBA8_GIC_DIST_BASE),
58 .pfn = __phys_to_pfn(REALVIEW_PBA8_GIC_DIST_BASE),
62 .virtual = IO_ADDRESS(REALVIEW_SCTL_BASE),
63 .pfn = __phys_to_pfn(REALVIEW_SCTL_BASE),
67 .virtual = IO_ADDRESS(REALVIEW_PBA8_TIMER0_1_BASE),
68 .pfn = __phys_to_pfn(REALVIEW_PBA8_TIMER0_1_BASE),
72 .virtual = IO_ADDRESS(REALVIEW_PBA8_TIMER2_3_BASE),
73 .pfn = __phys_to_pfn(REALVIEW_PBA8_TIMER2_3_BASE),
79 .virtual = PCIX_UNIT_BASE,
80 .pfn = __phys_to_pfn(REALVIEW_PBA8_PCI_BASE),
81 .length = REALVIEW_PBA8_PCI_BASE_SIZE,
85 #ifdef CONFIG_DEBUG_LL
87 .virtual = IO_ADDRESS(REALVIEW_PBA8_UART0_BASE),
88 .pfn = __phys_to_pfn(REALVIEW_PBA8_UART0_BASE),
95 static void __init realview_pba8_map_io(void)
97 iotable_init(realview_pba8_io_desc, ARRAY_SIZE(realview_pba8_io_desc));
100 static struct pl061_platform_data gpio0_plat_data = {
105 static struct pl061_platform_data gpio1_plat_data = {
110 static struct pl061_platform_data gpio2_plat_data = {
116 * RealView PBA8Core AMBA devices
119 #define GPIO2_IRQ { IRQ_PBA8_GPIO2, NO_IRQ }
120 #define GPIO2_DMA { 0, 0 }
121 #define GPIO3_IRQ { IRQ_PBA8_GPIO3, NO_IRQ }
122 #define GPIO3_DMA { 0, 0 }
123 #define AACI_IRQ { IRQ_PBA8_AACI, NO_IRQ }
124 #define AACI_DMA { 0x80, 0x81 }
125 #define MMCI0_IRQ { IRQ_PBA8_MMCI0A, IRQ_PBA8_MMCI0B }
126 #define MMCI0_DMA { 0x84, 0 }
127 #define KMI0_IRQ { IRQ_PBA8_KMI0, NO_IRQ }
128 #define KMI0_DMA { 0, 0 }
129 #define KMI1_IRQ { IRQ_PBA8_KMI1, NO_IRQ }
130 #define KMI1_DMA { 0, 0 }
131 #define PBA8_SMC_IRQ { NO_IRQ, NO_IRQ }
132 #define PBA8_SMC_DMA { 0, 0 }
133 #define MPMC_IRQ { NO_IRQ, NO_IRQ }
134 #define MPMC_DMA { 0, 0 }
135 #define PBA8_CLCD_IRQ { IRQ_PBA8_CLCD, NO_IRQ }
136 #define PBA8_CLCD_DMA { 0, 0 }
137 #define DMAC_IRQ { IRQ_PBA8_DMAC, NO_IRQ }
138 #define DMAC_DMA { 0, 0 }
139 #define SCTL_IRQ { NO_IRQ, NO_IRQ }
140 #define SCTL_DMA { 0, 0 }
141 #define PBA8_WATCHDOG_IRQ { IRQ_PBA8_WATCHDOG, NO_IRQ }
142 #define PBA8_WATCHDOG_DMA { 0, 0 }
143 #define PBA8_GPIO0_IRQ { IRQ_PBA8_GPIO0, NO_IRQ }
144 #define PBA8_GPIO0_DMA { 0, 0 }
145 #define GPIO1_IRQ { IRQ_PBA8_GPIO1, NO_IRQ }
146 #define GPIO1_DMA { 0, 0 }
147 #define PBA8_RTC_IRQ { IRQ_PBA8_RTC, NO_IRQ }
148 #define PBA8_RTC_DMA { 0, 0 }
149 #define SCI_IRQ { IRQ_PBA8_SCI, NO_IRQ }
150 #define SCI_DMA { 7, 6 }
151 #define PBA8_UART0_IRQ { IRQ_PBA8_UART0, NO_IRQ }
152 #define PBA8_UART0_DMA { 15, 14 }
153 #define PBA8_UART1_IRQ { IRQ_PBA8_UART1, NO_IRQ }
154 #define PBA8_UART1_DMA { 13, 12 }
155 #define PBA8_UART2_IRQ { IRQ_PBA8_UART2, NO_IRQ }
156 #define PBA8_UART2_DMA { 11, 10 }
157 #define PBA8_UART3_IRQ { IRQ_PBA8_UART3, NO_IRQ }
158 #define PBA8_UART3_DMA { 0x86, 0x87 }
159 #define PBA8_SSP_IRQ { IRQ_PBA8_SSP, NO_IRQ }
160 #define PBA8_SSP_DMA { 9, 8 }
162 /* FPGA Primecells */
163 AMBA_DEVICE(aaci, "fpga:aaci", AACI, NULL);
164 AMBA_DEVICE(mmc0, "fpga:mmc0", MMCI0, &realview_mmc0_plat_data);
165 AMBA_DEVICE(kmi0, "fpga:kmi0", KMI0, NULL);
166 AMBA_DEVICE(kmi1, "fpga:kmi1", KMI1, NULL);
167 AMBA_DEVICE(uart3, "fpga:uart3", PBA8_UART3, NULL);
169 /* DevChip Primecells */
170 AMBA_DEVICE(smc, "dev:smc", PBA8_SMC, NULL);
171 AMBA_DEVICE(sctl, "dev:sctl", SCTL, NULL);
172 AMBA_DEVICE(wdog, "dev:wdog", PBA8_WATCHDOG, NULL);
173 AMBA_DEVICE(gpio0, "dev:gpio0", PBA8_GPIO0, &gpio0_plat_data);
174 AMBA_DEVICE(gpio1, "dev:gpio1", GPIO1, &gpio1_plat_data);
175 AMBA_DEVICE(gpio2, "dev:gpio2", GPIO2, &gpio2_plat_data);
176 AMBA_DEVICE(rtc, "dev:rtc", PBA8_RTC, NULL);
177 AMBA_DEVICE(sci0, "dev:sci0", SCI, NULL);
178 AMBA_DEVICE(uart0, "dev:uart0", PBA8_UART0, NULL);
179 AMBA_DEVICE(uart1, "dev:uart1", PBA8_UART1, NULL);
180 AMBA_DEVICE(uart2, "dev:uart2", PBA8_UART2, NULL);
181 AMBA_DEVICE(ssp0, "dev:ssp0", PBA8_SSP, NULL);
183 /* Primecells on the NEC ISSP chip */
184 AMBA_DEVICE(clcd, "issp:clcd", PBA8_CLCD, &clcd_plat_data);
185 AMBA_DEVICE(dmac, "issp:dmac", DMAC, NULL);
187 static struct amba_device *amba_devs[] __initdata = {
210 * RealView PB-A8 platform devices
212 static struct resource realview_pba8_flash_resource[] = {
214 .start = REALVIEW_PBA8_FLASH0_BASE,
215 .end = REALVIEW_PBA8_FLASH0_BASE + REALVIEW_PBA8_FLASH0_SIZE - 1,
216 .flags = IORESOURCE_MEM,
219 .start = REALVIEW_PBA8_FLASH1_BASE,
220 .end = REALVIEW_PBA8_FLASH1_BASE + REALVIEW_PBA8_FLASH1_SIZE - 1,
221 .flags = IORESOURCE_MEM,
225 static struct resource realview_pba8_smsc911x_resources[] = {
227 .start = REALVIEW_PBA8_ETH_BASE,
228 .end = REALVIEW_PBA8_ETH_BASE + SZ_64K - 1,
229 .flags = IORESOURCE_MEM,
232 .start = IRQ_PBA8_ETH,
234 .flags = IORESOURCE_IRQ,
238 static struct resource realview_pba8_isp1761_resources[] = {
240 .start = REALVIEW_PBA8_USB_BASE,
241 .end = REALVIEW_PBA8_USB_BASE + SZ_128K - 1,
242 .flags = IORESOURCE_MEM,
245 .start = IRQ_PBA8_USB,
247 .flags = IORESOURCE_IRQ,
251 static void __init gic_init_irq(void)
253 /* ARM PB-A8 on-board GIC */
254 gic_cpu_base_addr = __io_address(REALVIEW_PBA8_GIC_CPU_BASE);
255 gic_dist_init(0, __io_address(REALVIEW_PBA8_GIC_DIST_BASE), IRQ_PBA8_GIC_START);
256 gic_cpu_init(0, __io_address(REALVIEW_PBA8_GIC_CPU_BASE));
259 static void __init realview_pba8_timer_init(void)
261 timer0_va_base = __io_address(REALVIEW_PBA8_TIMER0_1_BASE);
262 timer1_va_base = __io_address(REALVIEW_PBA8_TIMER0_1_BASE) + 0x20;
263 timer2_va_base = __io_address(REALVIEW_PBA8_TIMER2_3_BASE);
264 timer3_va_base = __io_address(REALVIEW_PBA8_TIMER2_3_BASE) + 0x20;
266 realview_timer_init(IRQ_PBA8_TIMER0_1);
269 static struct sys_timer realview_pba8_timer = {
270 .init = realview_pba8_timer_init,
273 static void realview_pba8_reset(char mode)
275 void __iomem *reset_ctrl = __io_address(REALVIEW_SYS_RESETCTL);
276 void __iomem *lock_ctrl = __io_address(REALVIEW_SYS_LOCK);
279 * To reset, we hit the on-board reset register
282 __raw_writel(REALVIEW_SYS_LOCK_VAL, lock_ctrl);
283 __raw_writel(0x0000, reset_ctrl);
284 __raw_writel(0x0004, reset_ctrl);
287 static void __init realview_pba8_init(void)
291 realview_flash_register(realview_pba8_flash_resource,
292 ARRAY_SIZE(realview_pba8_flash_resource));
293 realview_eth_register(NULL, realview_pba8_smsc911x_resources);
294 platform_device_register(&realview_i2c_device);
295 platform_device_register(&realview_cf_device);
296 realview_usb_register(realview_pba8_isp1761_resources);
298 for (i = 0; i < ARRAY_SIZE(amba_devs); i++) {
299 struct amba_device *d = amba_devs[i];
300 amba_device_register(d, &iomem_resource);
304 leds_event = realview_leds_event;
306 realview_reset = realview_pba8_reset;
309 MACHINE_START(REALVIEW_PBA8, "ARM-RealView PB-A8")
310 /* Maintainer: ARM Ltd/Deep Blue Solutions Ltd */
311 .phys_io = REALVIEW_PBA8_UART0_BASE,
312 .io_pg_offst = (IO_ADDRESS(REALVIEW_PBA8_UART0_BASE) >> 18) & 0xfffc,
313 .boot_params = PHYS_OFFSET + 0x00000100,
314 .fixup = realview_fixup,
315 .map_io = realview_pba8_map_io,
316 .init_irq = gic_init_irq,
317 .timer = &realview_pba8_timer,
318 .init_machine = realview_pba8_init,