arch/arm/mach-realview/realview_pbx.c - kernel/msm-4.9 - Gitiles

 /*
  *  arch/arm/mach-realview/realview_pbx.c
  *
  *  Copyright (C) 2009 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 version 2 as
  * published by the Free Software Foundation.
  *
  * 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/device.h>
 #include <linux/amba/bus.h>
 #include <linux/amba/pl061.h>
 #include <linux/amba/mmci.h>
 #include <linux/amba/pl022.h>
 #include <linux/io.h>
 #include <linux/irqchip/arm-gic.h>
 #include <linux/platform_data/clk-realview.h>
 #include <linux/reboot.h>
 #include <linux/memblock.h>

 #include <asm/irq.h>
 #include <asm/mach-types.h>
 #include <asm/smp_twd.h>
 #include <asm/pgtable.h>
 #include <asm/hardware/cache-l2x0.h>

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

 #include "hardware.h"
 #include "board-pbx.h"
 #include "irqs-pbx.h"

 #include "core.h"

 static struct map_desc realview_pbx_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_PBX_GIC_CPU_BASE),
 		.pfn		= __phys_to_pfn(REALVIEW_PBX_GIC_CPU_BASE),
 		.length		= SZ_4K,
 		.type		= MT_DEVICE,
 	}, {
 		.virtual	= IO_ADDRESS(REALVIEW_PBX_GIC_DIST_BASE),
 		.pfn		= __phys_to_pfn(REALVIEW_PBX_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_PBX_TIMER0_1_BASE),
 		.pfn		= __phys_to_pfn(REALVIEW_PBX_TIMER0_1_BASE),
 		.length		= SZ_4K,
 		.type		= MT_DEVICE,
 	}, {
 		.virtual	= IO_ADDRESS(REALVIEW_PBX_TIMER2_3_BASE),
 		.pfn		= __phys_to_pfn(REALVIEW_PBX_TIMER2_3_BASE),
 		.length		= SZ_4K,
 		.type		= MT_DEVICE,
 	},
 #ifdef CONFIG_DEBUG_LL
 	{
 		.virtual	= IO_ADDRESS(REALVIEW_PBX_UART0_BASE),
 		.pfn		= __phys_to_pfn(REALVIEW_PBX_UART0_BASE),
 		.length		= SZ_4K,
 		.type		= MT_DEVICE,
 	},
 #endif
 };

 static struct map_desc realview_local_io_desc[] __initdata = {
 	{
 		.virtual        = IO_ADDRESS(REALVIEW_PBX_TILE_SCU_BASE),
 		.pfn            = __phys_to_pfn(REALVIEW_PBX_TILE_SCU_BASE),
 		.length         = SZ_4K,
 		.type           = MT_DEVICE,
 	}, {
 		.virtual        = IO_ADDRESS(REALVIEW_PBX_TILE_GIC_DIST_BASE),
 		.pfn            = __phys_to_pfn(REALVIEW_PBX_TILE_GIC_DIST_BASE),
 		.length         = SZ_4K,
 		.type           = MT_DEVICE,
 	}, {
 		.virtual        = IO_ADDRESS(REALVIEW_PBX_TILE_L220_BASE),
 		.pfn            = __phys_to_pfn(REALVIEW_PBX_TILE_L220_BASE),
 		.length         = SZ_8K,
 		.type           = MT_DEVICE,
 	}
 };

 static void __init realview_pbx_map_io(void)
 {
 	iotable_init(realview_pbx_io_desc, ARRAY_SIZE(realview_pbx_io_desc));
 	if (core_tile_pbx11mp() || core_tile_pbxa9mp())
 		iotable_init(realview_local_io_desc, ARRAY_SIZE(realview_local_io_desc));
 }

 static struct pl061_platform_data gpio0_plat_data = {
 	.gpio_base	= 0,
 };

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

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

 static struct pl022_ssp_controller ssp0_plat_data = {
 	.bus_id = 0,
 	.enable_dma = 0,
 	.num_chipselect = 1,
 };

 /*
  * RealView PBXCore AMBA devices
  */

 #define GPIO2_IRQ		{ IRQ_PBX_GPIO2 }
 #define GPIO3_IRQ		{ IRQ_PBX_GPIO3 }
 #define AACI_IRQ		{ IRQ_PBX_AACI }
 #define MMCI0_IRQ		{ IRQ_PBX_MMCI0A, IRQ_PBX_MMCI0B }
 #define KMI0_IRQ		{ IRQ_PBX_KMI0 }
 #define KMI1_IRQ		{ IRQ_PBX_KMI1 }
 #define PBX_SMC_IRQ		{ }
 #define MPMC_IRQ		{ }
 #define PBX_CLCD_IRQ		{ IRQ_PBX_CLCD }
 #define DMAC_IRQ		{ IRQ_PBX_DMAC }
 #define SCTL_IRQ		{ }
 #define PBX_WATCHDOG_IRQ	{ IRQ_PBX_WATCHDOG }
 #define PBX_GPIO0_IRQ		{ IRQ_PBX_GPIO0 }
 #define GPIO1_IRQ		{ IRQ_PBX_GPIO1 }
 #define PBX_RTC_IRQ		{ IRQ_PBX_RTC }
 #define SCI_IRQ			{ IRQ_PBX_SCI }
 #define PBX_UART0_IRQ		{ IRQ_PBX_UART0 }
 #define PBX_UART1_IRQ		{ IRQ_PBX_UART1 }
 #define PBX_UART2_IRQ		{ IRQ_PBX_UART2 }
 #define PBX_UART3_IRQ		{ IRQ_PBX_UART3 }
 #define PBX_SSP_IRQ		{ IRQ_PBX_SSP }

 /* FPGA Primecells */
 APB_DEVICE(aaci,	"fpga:aaci",	AACI,		NULL);
 APB_DEVICE(mmc0,	"fpga:mmc0",	MMCI0,		&realview_mmc0_plat_data);
 APB_DEVICE(kmi0,	"fpga:kmi0",	KMI0,		NULL);
 APB_DEVICE(kmi1,	"fpga:kmi1",	KMI1,		NULL);
 APB_DEVICE(uart3,	"fpga:uart3",	PBX_UART3,	NULL);

 /* DevChip Primecells */
 AHB_DEVICE(smc,	"dev:smc",	PBX_SMC,	NULL);
 AHB_DEVICE(sctl,	"dev:sctl",	SCTL,		NULL);
 APB_DEVICE(wdog,	"dev:wdog",	PBX_WATCHDOG, 	NULL);
 APB_DEVICE(gpio0,	"dev:gpio0",	PBX_GPIO0,	&gpio0_plat_data);
 APB_DEVICE(gpio1,	"dev:gpio1",	GPIO1,		&gpio1_plat_data);
 APB_DEVICE(gpio2,	"dev:gpio2",	GPIO2,		&gpio2_plat_data);
 APB_DEVICE(rtc,		"dev:rtc",	PBX_RTC,	NULL);
 APB_DEVICE(sci0,	"dev:sci0",	SCI,		NULL);
 APB_DEVICE(uart0,	"dev:uart0",	PBX_UART0,	NULL);
 APB_DEVICE(uart1,	"dev:uart1",	PBX_UART1,	NULL);
 APB_DEVICE(uart2,	"dev:uart2",	PBX_UART2,	NULL);
 APB_DEVICE(ssp0,	"dev:ssp0",	PBX_SSP,	&ssp0_plat_data);

 /* Primecells on the NEC ISSP chip */
 AHB_DEVICE(clcd,	"issp:clcd",	PBX_CLCD,	&clcd_plat_data);
 AHB_DEVICE(dmac,	"issp:dmac",	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-X platform devices
  */
 static struct resource realview_pbx_flash_resources[] = {
 	[0] = {
 		.start          = REALVIEW_PBX_FLASH0_BASE,
 		.end            = REALVIEW_PBX_FLASH0_BASE + REALVIEW_PBX_FLASH0_SIZE - 1,
 		.flags          = IORESOURCE_MEM,
 	},
 	[1] = {
 		.start          = REALVIEW_PBX_FLASH1_BASE,
 		.end            = REALVIEW_PBX_FLASH1_BASE + REALVIEW_PBX_FLASH1_SIZE - 1,
 		.flags          = IORESOURCE_MEM,
 	},
 };

 static struct resource realview_pbx_smsc911x_resources[] = {
 	[0] = {
 		.start		= REALVIEW_PBX_ETH_BASE,
 		.end		= REALVIEW_PBX_ETH_BASE + SZ_64K - 1,
 		.flags		= IORESOURCE_MEM,
 	},
 	[1] = {
 		.start		= IRQ_PBX_ETH,
 		.end		= IRQ_PBX_ETH,
 		.flags		= IORESOURCE_IRQ,
 	},
 };

 static struct resource realview_pbx_isp1761_resources[] = {
 	[0] = {
 		.start		= REALVIEW_PBX_USB_BASE,
 		.end		= REALVIEW_PBX_USB_BASE + SZ_128K - 1,
 		.flags		= IORESOURCE_MEM,
 	},
 	[1] = {
 		.start		= IRQ_PBX_USB,
 		.end		= IRQ_PBX_USB,
 		.flags		= IORESOURCE_IRQ,
 	},
 };

 static struct resource pmu_resources[] = {
 	[0] = {
 		.start		= IRQ_PBX_PMU_CPU0,
 		.end		= IRQ_PBX_PMU_CPU0,
 		.flags		= IORESOURCE_IRQ,
 	},
 	[1] = {
 		.start		= IRQ_PBX_PMU_CPU1,
 		.end		= IRQ_PBX_PMU_CPU1,
 		.flags		= IORESOURCE_IRQ,
 	},
 	[2] = {
 		.start		= IRQ_PBX_PMU_CPU2,
 		.end		= IRQ_PBX_PMU_CPU2,
 		.flags		= IORESOURCE_IRQ,
 	},
 	[3] = {
 		.start		= IRQ_PBX_PMU_CPU3,
 		.end		= IRQ_PBX_PMU_CPU3,
 		.flags		= IORESOURCE_IRQ,
 	},
 };

 static struct platform_device pmu_device = {
 	.name			= "armv7-pmu",
 	.id			= -1,
 	.num_resources		= ARRAY_SIZE(pmu_resources),
 	.resource		= pmu_resources,
 };

 static void __init gic_init_irq(void)
 {
 	/* ARM PBX on-board GIC */
 	if (core_tile_pbx11mp() || core_tile_pbxa9mp()) {
 		gic_init(0, 29, __io_address(REALVIEW_PBX_TILE_GIC_DIST_BASE),
 			 __io_address(REALVIEW_PBX_TILE_GIC_CPU_BASE));
 	} else {
 		gic_init(0, IRQ_PBX_GIC_START,
 			 __io_address(REALVIEW_PBX_GIC_DIST_BASE),
 			 __io_address(REALVIEW_PBX_GIC_CPU_BASE));
 	}
 }

 #ifdef CONFIG_HAVE_ARM_TWD
 static DEFINE_TWD_LOCAL_TIMER(twd_local_timer,
 			      REALVIEW_PBX_TILE_TWD_BASE,
 			      IRQ_LOCALTIMER);

 static void __init realview_pbx_twd_init(void)
 {
 	int err = twd_local_timer_register(&twd_local_timer);
 	if (err)
 		pr_err("twd_local_timer_register failed %d\n", err);
 }
 #else
 #define realview_pbx_twd_init()	do { } while(0)
 #endif

 static void __init realview_pbx_timer_init(void)
 {
 	timer0_va_base = __io_address(REALVIEW_PBX_TIMER0_1_BASE);
 	timer1_va_base = __io_address(REALVIEW_PBX_TIMER0_1_BASE) + 0x20;
 	timer2_va_base = __io_address(REALVIEW_PBX_TIMER2_3_BASE);
 	timer3_va_base = __io_address(REALVIEW_PBX_TIMER2_3_BASE) + 0x20;

 	realview_clk_init(__io_address(REALVIEW_SYS_BASE), false);
 	realview_timer_init(IRQ_PBX_TIMER0_1);
 	realview_pbx_twd_init();
 }

 static void realview_pbx_fixup(struct tag *tags, char **from)
 {
 #ifdef CONFIG_SPARSEMEM
 	/*
 	 * Memory configuration with SPARSEMEM enabled on RealView PBX (see
 	 * asm/mach/memory.h for more information).
 	 */

 	memblock_add(0, SZ_256M);
 	memblock_add(0x20000000, SZ_512M);
 	memblock_add(0x80000000, SZ_256M);
 #else
 	realview_fixup(tags, from);
 #endif
 }

 static void realview_pbx_restart(enum reboot_mode mode, const char *cmd)
 {
 	void __iomem *reset_ctrl = __io_address(REALVIEW_SYS_RESETCTL);
 	void __iomem *lock_ctrl = __io_address(REALVIEW_SYS_LOCK);

 	/*
 	 * To reset, we hit the on-board reset register
 	 * in the system FPGA
 	 */
 	__raw_writel(REALVIEW_SYS_LOCK_VAL, lock_ctrl);
 	__raw_writel(0x00F0, reset_ctrl);
 	__raw_writel(0x00F4, reset_ctrl);
 	dsb();
 }

 static void __init realview_pbx_init(void)
 {
 	int i;

 #ifdef CONFIG_CACHE_L2X0
 	if (core_tile_pbxa9mp()) {
 		void __iomem *l2x0_base =
 			__io_address(REALVIEW_PBX_TILE_L220_BASE);

 		/* set RAM latencies to 1 cycle for eASIC */
 		writel(0, l2x0_base + L310_TAG_LATENCY_CTRL);
 		writel(0, l2x0_base + L310_DATA_LATENCY_CTRL);

 		/* 16KB way size, 8-way associativity, parity disabled
 		 * Bits:  .. 0 0 0 0 1 00 1 0 1 001 0 000 0 .... .... .... */
 		l2x0_init(l2x0_base, 0x02520000, 0xc0000fff);
 		platform_device_register(&pmu_device);
 	}
 #endif

 	realview_flash_register(realview_pbx_flash_resources,
 				ARRAY_SIZE(realview_pbx_flash_resources));
 	realview_eth_register(NULL, realview_pbx_smsc911x_resources);
 	platform_device_register(&realview_i2c_device);
 	platform_device_register(&realview_cf_device);
 	platform_device_register(&realview_leds_device);
 	realview_usb_register(realview_pbx_isp1761_resources);

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

 MACHINE_START(REALVIEW_PBX, "ARM-RealView PBX")
 	/* Maintainer: ARM Ltd/Deep Blue Solutions Ltd */
 	.atag_offset	= 0x100,
 	.smp		= smp_ops(realview_smp_ops),
 	.fixup		= realview_pbx_fixup,
 	.map_io		= realview_pbx_map_io,
 	.init_early	= realview_init_early,
 	.init_irq	= gic_init_irq,
 	.init_time	= realview_pbx_timer_init,
 	.init_machine	= realview_pbx_init,
 #ifdef CONFIG_ZONE_DMA
 	.dma_zone_size	= SZ_256M,
 #endif
 	.restart	= realview_pbx_restart,
 MACHINE_END
	/*
	* arch/arm/mach-realview/realview_pbx.c
	*
	* Copyright (C) 2009 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 version 2 as
	* published by the Free Software Foundation.
	*
	* 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/device.h>
	#include <linux/amba/bus.h>
	#include <linux/amba/pl061.h>
	#include <linux/amba/mmci.h>
	#include <linux/amba/pl022.h>
	#include <linux/io.h>
	#include <linux/irqchip/arm-gic.h>
	#include <linux/platform_data/clk-realview.h>
	#include <linux/reboot.h>
	#include <linux/memblock.h>

	#include <asm/irq.h>
	#include <asm/mach-types.h>
	#include <asm/smp_twd.h>
	#include <asm/pgtable.h>
	#include <asm/hardware/cache-l2x0.h>

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

	#include "hardware.h"
	#include "board-pbx.h"
	#include "irqs-pbx.h"

	#include "core.h"

	static struct map_desc realview_pbx_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_PBX_GIC_CPU_BASE),
	.pfn = __phys_to_pfn(REALVIEW_PBX_GIC_CPU_BASE),
	.length = SZ_4K,
	.type = MT_DEVICE,
	}, {
	.virtual = IO_ADDRESS(REALVIEW_PBX_GIC_DIST_BASE),
	.pfn = __phys_to_pfn(REALVIEW_PBX_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_PBX_TIMER0_1_BASE),
	.pfn = __phys_to_pfn(REALVIEW_PBX_TIMER0_1_BASE),
	.length = SZ_4K,
	.type = MT_DEVICE,
	}, {
	.virtual = IO_ADDRESS(REALVIEW_PBX_TIMER2_3_BASE),
	.pfn = __phys_to_pfn(REALVIEW_PBX_TIMER2_3_BASE),
	.length = SZ_4K,
	.type = MT_DEVICE,
	},
	#ifdef CONFIG_DEBUG_LL
	{
	.virtual = IO_ADDRESS(REALVIEW_PBX_UART0_BASE),
	.pfn = __phys_to_pfn(REALVIEW_PBX_UART0_BASE),
	.length = SZ_4K,
	.type = MT_DEVICE,
	},
	#endif
	};

	static struct map_desc realview_local_io_desc[] __initdata = {
	{
	.virtual = IO_ADDRESS(REALVIEW_PBX_TILE_SCU_BASE),
	.pfn = __phys_to_pfn(REALVIEW_PBX_TILE_SCU_BASE),
	.length = SZ_4K,
	.type = MT_DEVICE,
	}, {
	.virtual = IO_ADDRESS(REALVIEW_PBX_TILE_GIC_DIST_BASE),
	.pfn = __phys_to_pfn(REALVIEW_PBX_TILE_GIC_DIST_BASE),
	.length = SZ_4K,
	.type = MT_DEVICE,
	}, {
	.virtual = IO_ADDRESS(REALVIEW_PBX_TILE_L220_BASE),
	.pfn = __phys_to_pfn(REALVIEW_PBX_TILE_L220_BASE),
	.length = SZ_8K,
	.type = MT_DEVICE,
	}
	};

	static void __init realview_pbx_map_io(void)
	{
	iotable_init(realview_pbx_io_desc, ARRAY_SIZE(realview_pbx_io_desc));
	if (core_tile_pbx11mp() \|\| core_tile_pbxa9mp())
	iotable_init(realview_local_io_desc, ARRAY_SIZE(realview_local_io_desc));
	}

	static struct pl061_platform_data gpio0_plat_data = {
	.gpio_base = 0,
	};

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

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

	static struct pl022_ssp_controller ssp0_plat_data = {
	.bus_id = 0,
	.enable_dma = 0,
	.num_chipselect = 1,
	};

	/*
	* RealView PBXCore AMBA devices
	*/

	#define GPIO2_IRQ { IRQ_PBX_GPIO2 }
	#define GPIO3_IRQ { IRQ_PBX_GPIO3 }
	#define AACI_IRQ { IRQ_PBX_AACI }
	#define MMCI0_IRQ { IRQ_PBX_MMCI0A, IRQ_PBX_MMCI0B }
	#define KMI0_IRQ { IRQ_PBX_KMI0 }
	#define KMI1_IRQ { IRQ_PBX_KMI1 }
	#define PBX_SMC_IRQ { }
	#define MPMC_IRQ { }
	#define PBX_CLCD_IRQ { IRQ_PBX_CLCD }
	#define DMAC_IRQ { IRQ_PBX_DMAC }
	#define SCTL_IRQ { }
	#define PBX_WATCHDOG_IRQ { IRQ_PBX_WATCHDOG }
	#define PBX_GPIO0_IRQ { IRQ_PBX_GPIO0 }
	#define GPIO1_IRQ { IRQ_PBX_GPIO1 }
	#define PBX_RTC_IRQ { IRQ_PBX_RTC }
	#define SCI_IRQ { IRQ_PBX_SCI }
	#define PBX_UART0_IRQ { IRQ_PBX_UART0 }
	#define PBX_UART1_IRQ { IRQ_PBX_UART1 }
	#define PBX_UART2_IRQ { IRQ_PBX_UART2 }
	#define PBX_UART3_IRQ { IRQ_PBX_UART3 }
	#define PBX_SSP_IRQ { IRQ_PBX_SSP }

	/* FPGA Primecells */
	APB_DEVICE(aaci, "fpga:aaci", AACI, NULL);
	APB_DEVICE(mmc0, "fpga:mmc0", MMCI0, &realview_mmc0_plat_data);
	APB_DEVICE(kmi0, "fpga:kmi0", KMI0, NULL);
	APB_DEVICE(kmi1, "fpga:kmi1", KMI1, NULL);
	APB_DEVICE(uart3, "fpga:uart3", PBX_UART3, NULL);

	/* DevChip Primecells */
	AHB_DEVICE(smc, "dev:smc", PBX_SMC, NULL);
	AHB_DEVICE(sctl, "dev:sctl", SCTL, NULL);
	APB_DEVICE(wdog, "dev:wdog", PBX_WATCHDOG, NULL);
	APB_DEVICE(gpio0, "dev:gpio0", PBX_GPIO0, &gpio0_plat_data);
	APB_DEVICE(gpio1, "dev:gpio1", GPIO1, &gpio1_plat_data);
	APB_DEVICE(gpio2, "dev:gpio2", GPIO2, &gpio2_plat_data);
	APB_DEVICE(rtc, "dev:rtc", PBX_RTC, NULL);
	APB_DEVICE(sci0, "dev:sci0", SCI, NULL);
	APB_DEVICE(uart0, "dev:uart0", PBX_UART0, NULL);
	APB_DEVICE(uart1, "dev:uart1", PBX_UART1, NULL);
	APB_DEVICE(uart2, "dev:uart2", PBX_UART2, NULL);
	APB_DEVICE(ssp0, "dev:ssp0", PBX_SSP, &ssp0_plat_data);

	/* Primecells on the NEC ISSP chip */
	AHB_DEVICE(clcd, "issp:clcd", PBX_CLCD, &clcd_plat_data);
	AHB_DEVICE(dmac, "issp:dmac", 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-X platform devices
	*/
	static struct resource realview_pbx_flash_resources[] = {
	[0] = {
	.start = REALVIEW_PBX_FLASH0_BASE,
	.end = REALVIEW_PBX_FLASH0_BASE + REALVIEW_PBX_FLASH0_SIZE - 1,
	.flags = IORESOURCE_MEM,
	},
	[1] = {
	.start = REALVIEW_PBX_FLASH1_BASE,
	.end = REALVIEW_PBX_FLASH1_BASE + REALVIEW_PBX_FLASH1_SIZE - 1,
	.flags = IORESOURCE_MEM,
	},
	};

	static struct resource realview_pbx_smsc911x_resources[] = {
	[0] = {
	.start = REALVIEW_PBX_ETH_BASE,
	.end = REALVIEW_PBX_ETH_BASE + SZ_64K - 1,
	.flags = IORESOURCE_MEM,
	},
	[1] = {
	.start = IRQ_PBX_ETH,
	.end = IRQ_PBX_ETH,
	.flags = IORESOURCE_IRQ,
	},
	};

	static struct resource realview_pbx_isp1761_resources[] = {
	[0] = {
	.start = REALVIEW_PBX_USB_BASE,
	.end = REALVIEW_PBX_USB_BASE + SZ_128K - 1,
	.flags = IORESOURCE_MEM,
	},
	[1] = {
	.start = IRQ_PBX_USB,
	.end = IRQ_PBX_USB,
	.flags = IORESOURCE_IRQ,
	},
	};

	static struct resource pmu_resources[] = {
	[0] = {
	.start = IRQ_PBX_PMU_CPU0,
	.end = IRQ_PBX_PMU_CPU0,
	.flags = IORESOURCE_IRQ,
	},
	[1] = {
	.start = IRQ_PBX_PMU_CPU1,
	.end = IRQ_PBX_PMU_CPU1,
	.flags = IORESOURCE_IRQ,
	},
	[2] = {
	.start = IRQ_PBX_PMU_CPU2,
	.end = IRQ_PBX_PMU_CPU2,
	.flags = IORESOURCE_IRQ,
	},
	[3] = {
	.start = IRQ_PBX_PMU_CPU3,
	.end = IRQ_PBX_PMU_CPU3,
	.flags = IORESOURCE_IRQ,
	},
	};

	static struct platform_device pmu_device = {
	.name = "armv7-pmu",
	.id = -1,
	.num_resources = ARRAY_SIZE(pmu_resources),
	.resource = pmu_resources,
	};

	static void __init gic_init_irq(void)
	{
	/* ARM PBX on-board GIC */
	if (core_tile_pbx11mp() \|\| core_tile_pbxa9mp()) {
	gic_init(0, 29, __io_address(REALVIEW_PBX_TILE_GIC_DIST_BASE),
	__io_address(REALVIEW_PBX_TILE_GIC_CPU_BASE));
	} else {
	gic_init(0, IRQ_PBX_GIC_START,
	__io_address(REALVIEW_PBX_GIC_DIST_BASE),
	__io_address(REALVIEW_PBX_GIC_CPU_BASE));
	}
	}

	#ifdef CONFIG_HAVE_ARM_TWD
	static DEFINE_TWD_LOCAL_TIMER(twd_local_timer,
	REALVIEW_PBX_TILE_TWD_BASE,
	IRQ_LOCALTIMER);

	static void __init realview_pbx_twd_init(void)
	{
	int err = twd_local_timer_register(&twd_local_timer);
	if (err)
	pr_err("twd_local_timer_register failed %d\n", err);
	}
	#else
	#define realview_pbx_twd_init() do { } while(0)
	#endif

	static void __init realview_pbx_timer_init(void)
	{
	timer0_va_base = __io_address(REALVIEW_PBX_TIMER0_1_BASE);
	timer1_va_base = __io_address(REALVIEW_PBX_TIMER0_1_BASE) + 0x20;
	timer2_va_base = __io_address(REALVIEW_PBX_TIMER2_3_BASE);
	timer3_va_base = __io_address(REALVIEW_PBX_TIMER2_3_BASE) + 0x20;

	realview_clk_init(__io_address(REALVIEW_SYS_BASE), false);
	realview_timer_init(IRQ_PBX_TIMER0_1);
	realview_pbx_twd_init();
	}

	static void realview_pbx_fixup(struct tag tags, char *from)
	{
	#ifdef CONFIG_SPARSEMEM
	/*
	* Memory configuration with SPARSEMEM enabled on RealView PBX (see
	* asm/mach/memory.h for more information).
	*/

	memblock_add(0, SZ_256M);
	memblock_add(0x20000000, SZ_512M);
	memblock_add(0x80000000, SZ_256M);
	#else
	realview_fixup(tags, from);
	#endif
	}

	static void realview_pbx_restart(enum reboot_mode mode, const char *cmd)
	{
	void __iomem *reset_ctrl = __io_address(REALVIEW_SYS_RESETCTL);
	void __iomem *lock_ctrl = __io_address(REALVIEW_SYS_LOCK);

	/*
	* To reset, we hit the on-board reset register
	* in the system FPGA
	*/
	__raw_writel(REALVIEW_SYS_LOCK_VAL, lock_ctrl);
	__raw_writel(0x00F0, reset_ctrl);
	__raw_writel(0x00F4, reset_ctrl);
	dsb();
	}

	static void __init realview_pbx_init(void)
	{
	int i;

	#ifdef CONFIG_CACHE_L2X0
	if (core_tile_pbxa9mp()) {
	void __iomem *l2x0_base =
	__io_address(REALVIEW_PBX_TILE_L220_BASE);

	/* set RAM latencies to 1 cycle for eASIC */
	writel(0, l2x0_base + L310_TAG_LATENCY_CTRL);
	writel(0, l2x0_base + L310_DATA_LATENCY_CTRL);

	/* 16KB way size, 8-way associativity, parity disabled
	* Bits: .. 0 0 0 0 1 00 1 0 1 001 0 000 0 .... .... .... */
	l2x0_init(l2x0_base, 0x02520000, 0xc0000fff);
	platform_device_register(&pmu_device);
	}
	#endif

	realview_flash_register(realview_pbx_flash_resources,
	ARRAY_SIZE(realview_pbx_flash_resources));
	realview_eth_register(NULL, realview_pbx_smsc911x_resources);
	platform_device_register(&realview_i2c_device);
	platform_device_register(&realview_cf_device);
	platform_device_register(&realview_leds_device);
	realview_usb_register(realview_pbx_isp1761_resources);

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

	MACHINE_START(REALVIEW_PBX, "ARM-RealView PBX")
	/* Maintainer: ARM Ltd/Deep Blue Solutions Ltd */
	.atag_offset = 0x100,
	.smp = smp_ops(realview_smp_ops),
	.fixup = realview_pbx_fixup,
	.map_io = realview_pbx_map_io,
	.init_early = realview_init_early,
	.init_irq = gic_init_irq,
	.init_time = realview_pbx_timer_init,
	.init_machine = realview_pbx_init,
	#ifdef CONFIG_ZONE_DMA
	.dma_zone_size = SZ_256M,
	#endif
	.restart = realview_pbx_restart,
	MACHINE_END