realview_pba8.c 8.59 KB
Newer Older
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25
/*
 *  linux/arch/arm/mach-realview/realview_pba8.c
 *
 *  Copyright (C) 2008 ARM Limited
 *  Copyright (C) 2000 Deep Blue Solutions Ltd
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/sysdev.h>
#include <linux/amba/bus.h>
26
#include <linux/amba/pl061.h>
27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101
#include <linux/io.h>

#include <asm/irq.h>
#include <asm/leds.h>
#include <asm/mach-types.h>
#include <asm/hardware/gic.h>
#include <asm/hardware/icst307.h>

#include <asm/mach/arch.h>
#include <asm/mach/map.h>
#include <asm/mach/mmc.h>
#include <asm/mach/time.h>

#include <mach/hardware.h>
#include <mach/board-pba8.h>
#include <mach/irqs.h>

#include "core.h"
#include "clock.h"

static struct map_desc realview_pba8_io_desc[] __initdata = {
	{
		.virtual	= IO_ADDRESS(REALVIEW_SYS_BASE),
		.pfn		= __phys_to_pfn(REALVIEW_SYS_BASE),
		.length		= SZ_4K,
		.type		= MT_DEVICE,
	}, {
		.virtual	= IO_ADDRESS(REALVIEW_PBA8_GIC_CPU_BASE),
		.pfn		= __phys_to_pfn(REALVIEW_PBA8_GIC_CPU_BASE),
		.length		= SZ_4K,
		.type		= MT_DEVICE,
	}, {
		.virtual	= IO_ADDRESS(REALVIEW_PBA8_GIC_DIST_BASE),
		.pfn		= __phys_to_pfn(REALVIEW_PBA8_GIC_DIST_BASE),
		.length		= SZ_4K,
		.type		= MT_DEVICE,
	}, {
		.virtual	= IO_ADDRESS(REALVIEW_SCTL_BASE),
		.pfn		= __phys_to_pfn(REALVIEW_SCTL_BASE),
		.length		= SZ_4K,
		.type		= MT_DEVICE,
	}, {
		.virtual	= IO_ADDRESS(REALVIEW_PBA8_TIMER0_1_BASE),
		.pfn		= __phys_to_pfn(REALVIEW_PBA8_TIMER0_1_BASE),
		.length		= SZ_4K,
		.type		= MT_DEVICE,
	}, {
		.virtual	= IO_ADDRESS(REALVIEW_PBA8_TIMER2_3_BASE),
		.pfn		= __phys_to_pfn(REALVIEW_PBA8_TIMER2_3_BASE),
		.length		= SZ_4K,
		.type		= MT_DEVICE,
	},
#ifdef CONFIG_PCI
	{
		.virtual	= PCIX_UNIT_BASE,
		.pfn		= __phys_to_pfn(REALVIEW_PBA8_PCI_BASE),
		.length		= REALVIEW_PBA8_PCI_BASE_SIZE,
		.type		= MT_DEVICE
	},
#endif
#ifdef CONFIG_DEBUG_LL
	{
		.virtual	= IO_ADDRESS(REALVIEW_PBA8_UART0_BASE),
		.pfn		= __phys_to_pfn(REALVIEW_PBA8_UART0_BASE),
		.length		= SZ_4K,
		.type		= MT_DEVICE,
	},
#endif
};

static void __init realview_pba8_map_io(void)
{
	iotable_init(realview_pba8_io_desc, ARRAY_SIZE(realview_pba8_io_desc));
}

102 103 104 105 106 107 108 109 110 111 112 113 114 115 116
static struct pl061_platform_data gpio0_plat_data = {
	.gpio_base	= 0,
	.irq_base	= -1,
};

static struct pl061_platform_data gpio1_plat_data = {
	.gpio_base	= 8,
	.irq_base	= -1,
};

static struct pl061_platform_data gpio2_plat_data = {
	.gpio_base	= 16,
	.irq_base	= -1,
};

117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174
/*
 * RealView PBA8Core AMBA devices
 */

#define GPIO2_IRQ		{ IRQ_PBA8_GPIO2, NO_IRQ }
#define GPIO2_DMA		{ 0, 0 }
#define GPIO3_IRQ		{ IRQ_PBA8_GPIO3, NO_IRQ }
#define GPIO3_DMA		{ 0, 0 }
#define AACI_IRQ		{ IRQ_PBA8_AACI, NO_IRQ }
#define AACI_DMA		{ 0x80, 0x81 }
#define MMCI0_IRQ		{ IRQ_PBA8_MMCI0A, IRQ_PBA8_MMCI0B }
#define MMCI0_DMA		{ 0x84, 0 }
#define KMI0_IRQ		{ IRQ_PBA8_KMI0, NO_IRQ }
#define KMI0_DMA		{ 0, 0 }
#define KMI1_IRQ		{ IRQ_PBA8_KMI1, NO_IRQ }
#define KMI1_DMA		{ 0, 0 }
#define PBA8_SMC_IRQ		{ NO_IRQ, NO_IRQ }
#define PBA8_SMC_DMA		{ 0, 0 }
#define MPMC_IRQ		{ NO_IRQ, NO_IRQ }
#define MPMC_DMA		{ 0, 0 }
#define PBA8_CLCD_IRQ		{ IRQ_PBA8_CLCD, NO_IRQ }
#define PBA8_CLCD_DMA		{ 0, 0 }
#define DMAC_IRQ		{ IRQ_PBA8_DMAC, NO_IRQ }
#define DMAC_DMA		{ 0, 0 }
#define SCTL_IRQ		{ NO_IRQ, NO_IRQ }
#define SCTL_DMA		{ 0, 0 }
#define PBA8_WATCHDOG_IRQ	{ IRQ_PBA8_WATCHDOG, NO_IRQ }
#define PBA8_WATCHDOG_DMA	{ 0, 0 }
#define PBA8_GPIO0_IRQ		{ IRQ_PBA8_GPIO0, NO_IRQ }
#define PBA8_GPIO0_DMA		{ 0, 0 }
#define GPIO1_IRQ		{ IRQ_PBA8_GPIO1, NO_IRQ }
#define GPIO1_DMA		{ 0, 0 }
#define PBA8_RTC_IRQ		{ IRQ_PBA8_RTC, NO_IRQ }
#define PBA8_RTC_DMA		{ 0, 0 }
#define SCI_IRQ			{ IRQ_PBA8_SCI, NO_IRQ }
#define SCI_DMA			{ 7, 6 }
#define PBA8_UART0_IRQ		{ IRQ_PBA8_UART0, NO_IRQ }
#define PBA8_UART0_DMA		{ 15, 14 }
#define PBA8_UART1_IRQ		{ IRQ_PBA8_UART1, NO_IRQ }
#define PBA8_UART1_DMA		{ 13, 12 }
#define PBA8_UART2_IRQ		{ IRQ_PBA8_UART2, NO_IRQ }
#define PBA8_UART2_DMA		{ 11, 10 }
#define PBA8_UART3_IRQ		{ IRQ_PBA8_UART3, NO_IRQ }
#define PBA8_UART3_DMA		{ 0x86, 0x87 }
#define PBA8_SSP_IRQ		{ IRQ_PBA8_SSP, NO_IRQ }
#define PBA8_SSP_DMA		{ 9, 8 }

/* FPGA Primecells */
AMBA_DEVICE(aaci,	"fpga:04",	AACI,		NULL);
AMBA_DEVICE(mmc0,	"fpga:05",	MMCI0,		&realview_mmc0_plat_data);
AMBA_DEVICE(kmi0,	"fpga:06",	KMI0,		NULL);
AMBA_DEVICE(kmi1,	"fpga:07",	KMI1,		NULL);
AMBA_DEVICE(uart3,	"fpga:09",	PBA8_UART3,	NULL);

/* DevChip Primecells */
AMBA_DEVICE(smc,	"dev:00",	PBA8_SMC,	NULL);
AMBA_DEVICE(sctl,	"dev:e0",	SCTL,		NULL);
AMBA_DEVICE(wdog,	"dev:e1",	PBA8_WATCHDOG, NULL);
175 176 177
AMBA_DEVICE(gpio0,	"dev:e4",	PBA8_GPIO0,	&gpio0_plat_data);
AMBA_DEVICE(gpio1,	"dev:e5",	GPIO1,		&gpio1_plat_data);
AMBA_DEVICE(gpio2,	"dev:e6",	GPIO2,		&gpio2_plat_data);
178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239
AMBA_DEVICE(rtc,	"dev:e8",	PBA8_RTC,	NULL);
AMBA_DEVICE(sci0,	"dev:f0",	SCI,		NULL);
AMBA_DEVICE(uart0,	"dev:f1",	PBA8_UART0,	NULL);
AMBA_DEVICE(uart1,	"dev:f2",	PBA8_UART1,	NULL);
AMBA_DEVICE(uart2,	"dev:f3",	PBA8_UART2,	NULL);
AMBA_DEVICE(ssp0,	"dev:f4",	PBA8_SSP,	NULL);

/* Primecells on the NEC ISSP chip */
AMBA_DEVICE(clcd,	"issp:20",	PBA8_CLCD,	&clcd_plat_data);
AMBA_DEVICE(dmac,	"issp:30",	DMAC,		NULL);

static struct amba_device *amba_devs[] __initdata = {
	&dmac_device,
	&uart0_device,
	&uart1_device,
	&uart2_device,
	&uart3_device,
	&smc_device,
	&clcd_device,
	&sctl_device,
	&wdog_device,
	&gpio0_device,
	&gpio1_device,
	&gpio2_device,
	&rtc_device,
	&sci0_device,
	&ssp0_device,
	&aaci_device,
	&mmc0_device,
	&kmi0_device,
	&kmi1_device,
};

/*
 * RealView PB-A8 platform devices
 */
static struct resource realview_pba8_flash_resource[] = {
	[0] = {
		.start		= REALVIEW_PBA8_FLASH0_BASE,
		.end		= REALVIEW_PBA8_FLASH0_BASE + REALVIEW_PBA8_FLASH0_SIZE - 1,
		.flags		= IORESOURCE_MEM,
	},
	[1] = {
		.start		= REALVIEW_PBA8_FLASH1_BASE,
		.end		= REALVIEW_PBA8_FLASH1_BASE + REALVIEW_PBA8_FLASH1_SIZE - 1,
		.flags		= IORESOURCE_MEM,
	},
};

static struct resource realview_pba8_smsc911x_resources[] = {
	[0] = {
		.start		= REALVIEW_PBA8_ETH_BASE,
		.end		= REALVIEW_PBA8_ETH_BASE + SZ_64K - 1,
		.flags		= IORESOURCE_MEM,
	},
	[1] = {
		.start		= IRQ_PBA8_ETH,
		.end		= IRQ_PBA8_ETH,
		.flags		= IORESOURCE_IRQ,
	},
};

240 241 242 243 244 245 246 247 248 249 250 251 252
static struct resource realview_pba8_isp1761_resources[] = {
	[0] = {
		.start		= REALVIEW_PBA8_USB_BASE,
		.end		= REALVIEW_PBA8_USB_BASE + SZ_128K - 1,
		.flags		= IORESOURCE_MEM,
	},
	[1] = {
		.start		= IRQ_PBA8_USB,
		.end		= IRQ_PBA8_USB,
		.flags		= IORESOURCE_IRQ,
	},
};

253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280
static void __init gic_init_irq(void)
{
	/* ARM PB-A8 on-board GIC */
	gic_cpu_base_addr = __io_address(REALVIEW_PBA8_GIC_CPU_BASE);
	gic_dist_init(0, __io_address(REALVIEW_PBA8_GIC_DIST_BASE), IRQ_PBA8_GIC_START);
	gic_cpu_init(0, __io_address(REALVIEW_PBA8_GIC_CPU_BASE));
}

static void __init realview_pba8_timer_init(void)
{
	timer0_va_base = __io_address(REALVIEW_PBA8_TIMER0_1_BASE);
	timer1_va_base = __io_address(REALVIEW_PBA8_TIMER0_1_BASE) + 0x20;
	timer2_va_base = __io_address(REALVIEW_PBA8_TIMER2_3_BASE);
	timer3_va_base = __io_address(REALVIEW_PBA8_TIMER2_3_BASE) + 0x20;

	realview_timer_init(IRQ_PBA8_TIMER0_1);
}

static struct sys_timer realview_pba8_timer = {
	.init		= realview_pba8_timer_init,
};

static void __init realview_pba8_init(void)
{
	int i;

	realview_flash_register(realview_pba8_flash_resource,
				ARRAY_SIZE(realview_pba8_flash_resource));
281
	realview_eth_register(NULL, realview_pba8_smsc911x_resources);
282
	platform_device_register(&realview_i2c_device);
283
	platform_device_register(&realview_cf_device);
284
	realview_usb_register(realview_pba8_isp1761_resources);
285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305

	for (i = 0; i < ARRAY_SIZE(amba_devs); i++) {
		struct amba_device *d = amba_devs[i];
		amba_device_register(d, &iomem_resource);
	}

#ifdef CONFIG_LEDS
	leds_event = realview_leds_event;
#endif
}

MACHINE_START(REALVIEW_PBA8, "ARM-RealView PB-A8")
	/* Maintainer: ARM Ltd/Deep Blue Solutions Ltd */
	.phys_io	= REALVIEW_PBA8_UART0_BASE,
	.io_pg_offst	= (IO_ADDRESS(REALVIEW_PBA8_UART0_BASE) >> 18) & 0xfffc,
	.boot_params	= PHYS_OFFSET + 0x00000100,
	.map_io		= realview_pba8_map_io,
	.init_irq	= gic_init_irq,
	.timer		= &realview_pba8_timer,
	.init_machine	= realview_pba8_init,
MACHINE_END