2 * arch/arm/mach-realview/realview_pbx.c
4 * Copyright (C) 2009 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 version 2 as
9 * published by the Free Software Foundation.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
21 #include <linux/init.h>
22 #include <linux/platform_device.h>
23 #include <linux/sysdev.h>
24 #include <linux/amba/bus.h>
29 #include <asm/mach-types.h>
30 #include <asm/smp_twd.h>
31 #include <asm/hardware/gic.h>
32 #include <asm/hardware/cache-l2x0.h>
34 #include <asm/mach/arch.h>
35 #include <asm/mach/map.h>
36 #include <asm/mach/mmc.h>
37 #include <asm/mach/time.h>
39 #include <mach/hardware.h>
40 #include <mach/board-pbx.h>
41 #include <mach/irqs.h>
45 static struct map_desc realview_pbx_io_desc[] __initdata = {
47 .virtual = IO_ADDRESS(REALVIEW_SYS_BASE),
48 .pfn = __phys_to_pfn(REALVIEW_SYS_BASE),
52 .virtual = IO_ADDRESS(REALVIEW_PBX_GIC_CPU_BASE),
53 .pfn = __phys_to_pfn(REALVIEW_PBX_GIC_CPU_BASE),
57 .virtual = IO_ADDRESS(REALVIEW_PBX_GIC_DIST_BASE),
58 .pfn = __phys_to_pfn(REALVIEW_PBX_GIC_DIST_BASE),
62 .virtual = IO_ADDRESS(REALVIEW_SCTL_BASE),
63 .pfn = __phys_to_pfn(REALVIEW_SCTL_BASE),
67 .virtual = IO_ADDRESS(REALVIEW_PBX_TIMER0_1_BASE),
68 .pfn = __phys_to_pfn(REALVIEW_PBX_TIMER0_1_BASE),
72 .virtual = IO_ADDRESS(REALVIEW_PBX_TIMER2_3_BASE),
73 .pfn = __phys_to_pfn(REALVIEW_PBX_TIMER2_3_BASE),
79 .virtual = PCIX_UNIT_BASE,
80 .pfn = __phys_to_pfn(REALVIEW_PBX_PCI_BASE),
81 .length = REALVIEW_PBX_PCI_BASE_SIZE,
85 #ifdef CONFIG_DEBUG_LL
87 .virtual = IO_ADDRESS(REALVIEW_PBX_UART0_BASE),
88 .pfn = __phys_to_pfn(REALVIEW_PBX_UART0_BASE),
95 static struct map_desc realview_local_io_desc[] __initdata = {
97 .virtual = IO_ADDRESS(REALVIEW_PBX_TILE_GIC_CPU_BASE),
98 .pfn = __phys_to_pfn(REALVIEW_PBX_TILE_GIC_CPU_BASE),
102 .virtual = IO_ADDRESS(REALVIEW_PBX_TILE_GIC_DIST_BASE),
103 .pfn = __phys_to_pfn(REALVIEW_PBX_TILE_GIC_DIST_BASE),
107 .virtual = IO_ADDRESS(REALVIEW_PBX_TILE_L220_BASE),
108 .pfn = __phys_to_pfn(REALVIEW_PBX_TILE_L220_BASE),
114 static void __init realview_pbx_map_io(void)
116 iotable_init(realview_pbx_io_desc, ARRAY_SIZE(realview_pbx_io_desc));
117 if (core_tile_pbx11mp() || core_tile_pbxa9mp())
118 iotable_init(realview_local_io_desc, ARRAY_SIZE(realview_local_io_desc));
122 * RealView PBXCore AMBA devices
125 #define GPIO2_IRQ { IRQ_PBX_GPIO2, NO_IRQ }
126 #define GPIO2_DMA { 0, 0 }
127 #define GPIO3_IRQ { IRQ_PBX_GPIO3, NO_IRQ }
128 #define GPIO3_DMA { 0, 0 }
129 #define AACI_IRQ { IRQ_PBX_AACI, NO_IRQ }
130 #define AACI_DMA { 0x80, 0x81 }
131 #define MMCI0_IRQ { IRQ_PBX_MMCI0A, IRQ_PBX_MMCI0B }
132 #define MMCI0_DMA { 0x84, 0 }
133 #define KMI0_IRQ { IRQ_PBX_KMI0, NO_IRQ }
134 #define KMI0_DMA { 0, 0 }
135 #define KMI1_IRQ { IRQ_PBX_KMI1, NO_IRQ }
136 #define KMI1_DMA { 0, 0 }
137 #define PBX_SMC_IRQ { NO_IRQ, NO_IRQ }
138 #define PBX_SMC_DMA { 0, 0 }
139 #define MPMC_IRQ { NO_IRQ, NO_IRQ }
140 #define MPMC_DMA { 0, 0 }
141 #define PBX_CLCD_IRQ { IRQ_PBX_CLCD, NO_IRQ }
142 #define PBX_CLCD_DMA { 0, 0 }
143 #define DMAC_IRQ { IRQ_PBX_DMAC, NO_IRQ }
144 #define DMAC_DMA { 0, 0 }
145 #define SCTL_IRQ { NO_IRQ, NO_IRQ }
146 #define SCTL_DMA { 0, 0 }
147 #define PBX_WATCHDOG_IRQ { IRQ_PBX_WATCHDOG, NO_IRQ }
148 #define PBX_WATCHDOG_DMA { 0, 0 }
149 #define PBX_GPIO0_IRQ { IRQ_PBX_GPIO0, NO_IRQ }
150 #define PBX_GPIO0_DMA { 0, 0 }
151 #define GPIO1_IRQ { IRQ_PBX_GPIO1, NO_IRQ }
152 #define GPIO1_DMA { 0, 0 }
153 #define PBX_RTC_IRQ { IRQ_PBX_RTC, NO_IRQ }
154 #define PBX_RTC_DMA { 0, 0 }
155 #define SCI_IRQ { IRQ_PBX_SCI, NO_IRQ }
156 #define SCI_DMA { 7, 6 }
157 #define PBX_UART0_IRQ { IRQ_PBX_UART0, NO_IRQ }
158 #define PBX_UART0_DMA { 15, 14 }
159 #define PBX_UART1_IRQ { IRQ_PBX_UART1, NO_IRQ }
160 #define PBX_UART1_DMA { 13, 12 }
161 #define PBX_UART2_IRQ { IRQ_PBX_UART2, NO_IRQ }
162 #define PBX_UART2_DMA { 11, 10 }
163 #define PBX_UART3_IRQ { IRQ_PBX_UART3, NO_IRQ }
164 #define PBX_UART3_DMA { 0x86, 0x87 }
165 #define PBX_SSP_IRQ { IRQ_PBX_SSP, NO_IRQ }
166 #define PBX_SSP_DMA { 9, 8 }
168 /* FPGA Primecells */
169 AMBA_DEVICE(aaci, "fpga:04", AACI, NULL);
170 AMBA_DEVICE(mmc0, "fpga:05", MMCI0, &realview_mmc0_plat_data);
171 AMBA_DEVICE(kmi0, "fpga:06", KMI0, NULL);
172 AMBA_DEVICE(kmi1, "fpga:07", KMI1, NULL);
173 AMBA_DEVICE(uart3, "fpga:09", PBX_UART3, NULL);
175 /* DevChip Primecells */
176 AMBA_DEVICE(smc, "dev:00", PBX_SMC, NULL);
177 AMBA_DEVICE(sctl, "dev:e0", SCTL, NULL);
178 AMBA_DEVICE(wdog, "dev:e1", PBX_WATCHDOG, NULL);
179 AMBA_DEVICE(gpio0, "dev:e4", PBX_GPIO0, NULL);
180 AMBA_DEVICE(gpio1, "dev:e5", GPIO1, NULL);
181 AMBA_DEVICE(gpio2, "dev:e6", GPIO2, NULL);
182 AMBA_DEVICE(rtc, "dev:e8", PBX_RTC, NULL);
183 AMBA_DEVICE(sci0, "dev:f0", SCI, NULL);
184 AMBA_DEVICE(uart0, "dev:f1", PBX_UART0, NULL);
185 AMBA_DEVICE(uart1, "dev:f2", PBX_UART1, NULL);
186 AMBA_DEVICE(uart2, "dev:f3", PBX_UART2, NULL);
187 AMBA_DEVICE(ssp0, "dev:f4", PBX_SSP, NULL);
189 /* Primecells on the NEC ISSP chip */
190 AMBA_DEVICE(clcd, "issp:20", PBX_CLCD, &clcd_plat_data);
191 AMBA_DEVICE(dmac, "issp:30", DMAC, NULL);
193 static struct amba_device *amba_devs[] __initdata = {
216 * RealView PB-X platform devices
218 static struct resource realview_pbx_flash_resources[] = {
220 .start = REALVIEW_PBX_FLASH0_BASE,
221 .end = REALVIEW_PBX_FLASH0_BASE + REALVIEW_PBX_FLASH0_SIZE - 1,
222 .flags = IORESOURCE_MEM,
225 .start = REALVIEW_PBX_FLASH1_BASE,
226 .end = REALVIEW_PBX_FLASH1_BASE + REALVIEW_PBX_FLASH1_SIZE - 1,
227 .flags = IORESOURCE_MEM,
231 static struct resource realview_pbx_smsc911x_resources[] = {
233 .start = REALVIEW_PBX_ETH_BASE,
234 .end = REALVIEW_PBX_ETH_BASE + SZ_64K - 1,
235 .flags = IORESOURCE_MEM,
238 .start = IRQ_PBX_ETH,
240 .flags = IORESOURCE_IRQ,
244 static struct resource realview_pbx_isp1761_resources[] = {
246 .start = REALVIEW_PBX_USB_BASE,
247 .end = REALVIEW_PBX_USB_BASE + SZ_128K - 1,
248 .flags = IORESOURCE_MEM,
251 .start = IRQ_PBX_USB,
253 .flags = IORESOURCE_IRQ,
257 static void __init gic_init_irq(void)
259 /* ARM PBX on-board GIC */
260 if (core_tile_pbx11mp() || core_tile_pbxa9mp()) {
261 gic_cpu_base_addr = __io_address(REALVIEW_PBX_TILE_GIC_CPU_BASE);
262 gic_dist_init(0, __io_address(REALVIEW_PBX_TILE_GIC_DIST_BASE),
264 gic_cpu_init(0, __io_address(REALVIEW_PBX_TILE_GIC_CPU_BASE));
266 gic_cpu_base_addr = __io_address(REALVIEW_PBX_GIC_CPU_BASE);
267 gic_dist_init(0, __io_address(REALVIEW_PBX_GIC_DIST_BASE),
269 gic_cpu_init(0, __io_address(REALVIEW_PBX_GIC_CPU_BASE));
273 static void __init realview_pbx_timer_init(void)
275 timer0_va_base = __io_address(REALVIEW_PBX_TIMER0_1_BASE);
276 timer1_va_base = __io_address(REALVIEW_PBX_TIMER0_1_BASE) + 0x20;
277 timer2_va_base = __io_address(REALVIEW_PBX_TIMER2_3_BASE);
278 timer3_va_base = __io_address(REALVIEW_PBX_TIMER2_3_BASE) + 0x20;
280 #ifdef CONFIG_LOCAL_TIMERS
281 if (core_tile_pbx11mp() || core_tile_pbxa9mp())
282 twd_base = __io_address(REALVIEW_PBX_TILE_TWD_BASE);
284 realview_timer_init(IRQ_PBX_TIMER0_1);
287 static struct sys_timer realview_pbx_timer = {
288 .init = realview_pbx_timer_init,
291 static void __init realview_pbx_init(void)
295 #ifdef CONFIG_CACHE_L2X0
296 if (core_tile_pbxa9mp()) {
297 void __iomem *l2x0_base =
298 __io_address(REALVIEW_PBX_TILE_L220_BASE);
300 /* set RAM latencies to 1 cycle for eASIC */
301 writel(0, l2x0_base + L2X0_TAG_LATENCY_CTRL);
302 writel(0, l2x0_base + L2X0_DATA_LATENCY_CTRL);
304 /* 16KB way size, 8-way associativity, parity disabled
305 * Bits: .. 0 0 0 0 1 00 1 0 1 001 0 000 0 .... .... .... */
306 l2x0_init(l2x0_base, 0x02520000, 0xc0000fff);
310 realview_flash_register(realview_pbx_flash_resources,
311 ARRAY_SIZE(realview_pbx_flash_resources));
312 realview_eth_register(NULL, realview_pbx_smsc911x_resources);
313 platform_device_register(&realview_i2c_device);
314 platform_device_register(&realview_cf_device);
315 realview_usb_register(realview_pbx_isp1761_resources);
317 for (i = 0; i < ARRAY_SIZE(amba_devs); i++) {
318 struct amba_device *d = amba_devs[i];
319 amba_device_register(d, &iomem_resource);
323 leds_event = realview_leds_event;
327 MACHINE_START(REALVIEW_PBX, "ARM-RealView PBX")
328 /* Maintainer: ARM Ltd/Deep Blue Solutions Ltd */
329 .phys_io = REALVIEW_PBX_UART0_BASE,
330 .io_pg_offst = (IO_ADDRESS(REALVIEW_PBX_UART0_BASE) >> 18) & 0xfffc,
331 .boot_params = PHYS_OFFSET + 0x00000100,
332 .map_io = realview_pbx_map_io,
333 .init_irq = gic_init_irq,
334 .timer = &realview_pbx_timer,
335 .init_machine = realview_pbx_init,