|  | /* | 
|  | *  linux/arch/arm/mach-realview/realview_pb11mp.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/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/platform_data/clk-realview.h> | 
|  |  | 
|  | #include <mach/hardware.h> | 
|  | #include <asm/irq.h> | 
|  | #include <asm/mach-types.h> | 
|  | #include <asm/pgtable.h> | 
|  | #include <asm/hardware/gic.h> | 
|  | #include <asm/hardware/cache-l2x0.h> | 
|  | #include <asm/smp_twd.h> | 
|  |  | 
|  | #include <asm/mach/arch.h> | 
|  | #include <asm/mach/flash.h> | 
|  | #include <asm/mach/map.h> | 
|  | #include <asm/mach/time.h> | 
|  |  | 
|  | #include <mach/board-pb11mp.h> | 
|  | #include <mach/irqs.h> | 
|  |  | 
|  | #include "core.h" | 
|  |  | 
|  | static struct map_desc realview_pb11mp_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_PB11MP_GIC_CPU_BASE), | 
|  | .pfn		= __phys_to_pfn(REALVIEW_PB11MP_GIC_CPU_BASE), | 
|  | .length		= SZ_4K, | 
|  | .type		= MT_DEVICE, | 
|  | }, { | 
|  | .virtual	= IO_ADDRESS(REALVIEW_PB11MP_GIC_DIST_BASE), | 
|  | .pfn		= __phys_to_pfn(REALVIEW_PB11MP_GIC_DIST_BASE), | 
|  | .length		= SZ_4K, | 
|  | .type		= MT_DEVICE, | 
|  | }, {	/* Maps the SCU, GIC CPU interface, TWD, GIC DIST */ | 
|  | .virtual	= IO_ADDRESS(REALVIEW_TC11MP_PRIV_MEM_BASE), | 
|  | .pfn		= __phys_to_pfn(REALVIEW_TC11MP_PRIV_MEM_BASE), | 
|  | .length		= REALVIEW_TC11MP_PRIV_MEM_SIZE, | 
|  | .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_PB11MP_TIMER0_1_BASE), | 
|  | .pfn		= __phys_to_pfn(REALVIEW_PB11MP_TIMER0_1_BASE), | 
|  | .length		= SZ_4K, | 
|  | .type		= MT_DEVICE, | 
|  | }, { | 
|  | .virtual	= IO_ADDRESS(REALVIEW_PB11MP_TIMER2_3_BASE), | 
|  | .pfn		= __phys_to_pfn(REALVIEW_PB11MP_TIMER2_3_BASE), | 
|  | .length		= SZ_4K, | 
|  | .type		= MT_DEVICE, | 
|  | }, { | 
|  | .virtual	= IO_ADDRESS(REALVIEW_TC11MP_L220_BASE), | 
|  | .pfn		= __phys_to_pfn(REALVIEW_TC11MP_L220_BASE), | 
|  | .length		= SZ_8K, | 
|  | .type		= MT_DEVICE, | 
|  | }, | 
|  | #ifdef CONFIG_DEBUG_LL | 
|  | { | 
|  | .virtual	= IO_ADDRESS(REALVIEW_PB11MP_UART0_BASE), | 
|  | .pfn		= __phys_to_pfn(REALVIEW_PB11MP_UART0_BASE), | 
|  | .length		= SZ_4K, | 
|  | .type		= MT_DEVICE, | 
|  | }, | 
|  | #endif | 
|  | }; | 
|  |  | 
|  | static void __init realview_pb11mp_map_io(void) | 
|  | { | 
|  | iotable_init(realview_pb11mp_io_desc, ARRAY_SIZE(realview_pb11mp_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 PB11MPCore AMBA devices | 
|  | */ | 
|  |  | 
|  | #define GPIO2_IRQ		{ IRQ_PB11MP_GPIO2 } | 
|  | #define GPIO3_IRQ		{ IRQ_PB11MP_GPIO3 } | 
|  | #define AACI_IRQ		{ IRQ_TC11MP_AACI } | 
|  | #define MMCI0_IRQ		{ IRQ_TC11MP_MMCI0A, IRQ_TC11MP_MMCI0B } | 
|  | #define KMI0_IRQ		{ IRQ_TC11MP_KMI0 } | 
|  | #define KMI1_IRQ		{ IRQ_TC11MP_KMI1 } | 
|  | #define PB11MP_SMC_IRQ		{ } | 
|  | #define MPMC_IRQ		{ } | 
|  | #define PB11MP_CLCD_IRQ		{ IRQ_PB11MP_CLCD } | 
|  | #define DMAC_IRQ		{ IRQ_PB11MP_DMAC } | 
|  | #define SCTL_IRQ		{ } | 
|  | #define PB11MP_WATCHDOG_IRQ	{ IRQ_PB11MP_WATCHDOG } | 
|  | #define PB11MP_GPIO0_IRQ	{ IRQ_PB11MP_GPIO0 } | 
|  | #define GPIO1_IRQ		{ IRQ_PB11MP_GPIO1 } | 
|  | #define PB11MP_RTC_IRQ		{ IRQ_TC11MP_RTC } | 
|  | #define SCI_IRQ			{ IRQ_PB11MP_SCI } | 
|  | #define PB11MP_UART0_IRQ	{ IRQ_TC11MP_UART0 } | 
|  | #define PB11MP_UART1_IRQ	{ IRQ_TC11MP_UART1 } | 
|  | #define PB11MP_UART2_IRQ	{ IRQ_PB11MP_UART2 } | 
|  | #define PB11MP_UART3_IRQ	{ IRQ_PB11MP_UART3 } | 
|  | #define PB11MP_SSP_IRQ		{ IRQ_PB11MP_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",	PB11MP_UART3,	NULL); | 
|  |  | 
|  | /* DevChip Primecells */ | 
|  | AHB_DEVICE(smc,		"dev:smc",	PB11MP_SMC,	NULL); | 
|  | AHB_DEVICE(sctl,	"dev:sctl",	SCTL,		NULL); | 
|  | APB_DEVICE(wdog,	"dev:wdog",	PB11MP_WATCHDOG, NULL); | 
|  | APB_DEVICE(gpio0,	"dev:gpio0",	PB11MP_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",	PB11MP_RTC,	NULL); | 
|  | APB_DEVICE(sci0,	"dev:sci0",	SCI,		NULL); | 
|  | APB_DEVICE(uart0,	"dev:uart0",	PB11MP_UART0,	NULL); | 
|  | APB_DEVICE(uart1,	"dev:uart1",	PB11MP_UART1,	NULL); | 
|  | APB_DEVICE(uart2,	"dev:uart2",	PB11MP_UART2,	NULL); | 
|  | APB_DEVICE(ssp0,	"dev:ssp0",	PB11MP_SSP,	&ssp0_plat_data); | 
|  |  | 
|  | /* Primecells on the NEC ISSP chip */ | 
|  | AHB_DEVICE(clcd,	"issp:clcd",	PB11MP_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 PB11MPCore platform devices | 
|  | */ | 
|  | static struct resource realview_pb11mp_flash_resource[] = { | 
|  | [0] = { | 
|  | .start		= REALVIEW_PB11MP_FLASH0_BASE, | 
|  | .end		= REALVIEW_PB11MP_FLASH0_BASE + REALVIEW_PB11MP_FLASH0_SIZE - 1, | 
|  | .flags		= IORESOURCE_MEM, | 
|  | }, | 
|  | [1] = { | 
|  | .start		= REALVIEW_PB11MP_FLASH1_BASE, | 
|  | .end		= REALVIEW_PB11MP_FLASH1_BASE + REALVIEW_PB11MP_FLASH1_SIZE - 1, | 
|  | .flags		= IORESOURCE_MEM, | 
|  | }, | 
|  | }; | 
|  |  | 
|  | static struct resource realview_pb11mp_smsc911x_resources[] = { | 
|  | [0] = { | 
|  | .start		= REALVIEW_PB11MP_ETH_BASE, | 
|  | .end		= REALVIEW_PB11MP_ETH_BASE + SZ_64K - 1, | 
|  | .flags		= IORESOURCE_MEM, | 
|  | }, | 
|  | [1] = { | 
|  | .start		= IRQ_TC11MP_ETH, | 
|  | .end		= IRQ_TC11MP_ETH, | 
|  | .flags		= IORESOURCE_IRQ, | 
|  | }, | 
|  | }; | 
|  |  | 
|  | static struct resource realview_pb11mp_isp1761_resources[] = { | 
|  | [0] = { | 
|  | .start		= REALVIEW_PB11MP_USB_BASE, | 
|  | .end		= REALVIEW_PB11MP_USB_BASE + SZ_128K - 1, | 
|  | .flags		= IORESOURCE_MEM, | 
|  | }, | 
|  | [1] = { | 
|  | .start		= IRQ_TC11MP_USB, | 
|  | .end		= IRQ_TC11MP_USB, | 
|  | .flags		= IORESOURCE_IRQ, | 
|  | }, | 
|  | }; | 
|  |  | 
|  | static struct resource pmu_resources[] = { | 
|  | [0] = { | 
|  | .start		= IRQ_TC11MP_PMU_CPU0, | 
|  | .end		= IRQ_TC11MP_PMU_CPU0, | 
|  | .flags		= IORESOURCE_IRQ, | 
|  | }, | 
|  | [1] = { | 
|  | .start		= IRQ_TC11MP_PMU_CPU1, | 
|  | .end		= IRQ_TC11MP_PMU_CPU1, | 
|  | .flags		= IORESOURCE_IRQ, | 
|  | }, | 
|  | [2] = { | 
|  | .start		= IRQ_TC11MP_PMU_CPU2, | 
|  | .end		= IRQ_TC11MP_PMU_CPU2, | 
|  | .flags		= IORESOURCE_IRQ, | 
|  | }, | 
|  | [3] = { | 
|  | .start		= IRQ_TC11MP_PMU_CPU3, | 
|  | .end		= IRQ_TC11MP_PMU_CPU3, | 
|  | .flags		= IORESOURCE_IRQ, | 
|  | }, | 
|  | }; | 
|  |  | 
|  | static struct platform_device pmu_device = { | 
|  | .name			= "arm-pmu", | 
|  | .id			= -1, | 
|  | .num_resources		= ARRAY_SIZE(pmu_resources), | 
|  | .resource		= pmu_resources, | 
|  | }; | 
|  |  | 
|  | static void __init gic_init_irq(void) | 
|  | { | 
|  | unsigned int pldctrl; | 
|  |  | 
|  | /* new irq mode with no DCC */ | 
|  | writel(0x0000a05f, __io_address(REALVIEW_SYS_LOCK)); | 
|  | pldctrl = readl(__io_address(REALVIEW_SYS_BASE)	+ REALVIEW_PB11MP_SYS_PLD_CTRL1); | 
|  | pldctrl |= 2 << 22; | 
|  | writel(pldctrl, __io_address(REALVIEW_SYS_BASE) + REALVIEW_PB11MP_SYS_PLD_CTRL1); | 
|  | writel(0x00000000, __io_address(REALVIEW_SYS_LOCK)); | 
|  |  | 
|  | /* ARM11MPCore test chip GIC, primary */ | 
|  | gic_init(0, 29, __io_address(REALVIEW_TC11MP_GIC_DIST_BASE), | 
|  | __io_address(REALVIEW_TC11MP_GIC_CPU_BASE)); | 
|  |  | 
|  | /* board GIC, secondary */ | 
|  | gic_init(1, IRQ_PB11MP_GIC_START, | 
|  | __io_address(REALVIEW_PB11MP_GIC_DIST_BASE), | 
|  | __io_address(REALVIEW_PB11MP_GIC_CPU_BASE)); | 
|  | gic_cascade_irq(1, IRQ_TC11MP_PB_IRQ1); | 
|  | } | 
|  |  | 
|  | #ifdef CONFIG_HAVE_ARM_TWD | 
|  | static DEFINE_TWD_LOCAL_TIMER(twd_local_timer, | 
|  | REALVIEW_TC11MP_TWD_BASE, | 
|  | IRQ_LOCALTIMER); | 
|  |  | 
|  | static void __init realview_pb11mp_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_pb11mp_twd_init()	do {} while(0) | 
|  | #endif | 
|  |  | 
|  | static void __init realview_pb11mp_timer_init(void) | 
|  | { | 
|  | timer0_va_base = __io_address(REALVIEW_PB11MP_TIMER0_1_BASE); | 
|  | timer1_va_base = __io_address(REALVIEW_PB11MP_TIMER0_1_BASE) + 0x20; | 
|  | timer2_va_base = __io_address(REALVIEW_PB11MP_TIMER2_3_BASE); | 
|  | timer3_va_base = __io_address(REALVIEW_PB11MP_TIMER2_3_BASE) + 0x20; | 
|  |  | 
|  | realview_clk_init(__io_address(REALVIEW_SYS_BASE), false); | 
|  | realview_timer_init(IRQ_TC11MP_TIMER0_1); | 
|  | realview_pb11mp_twd_init(); | 
|  | } | 
|  |  | 
|  | static struct sys_timer realview_pb11mp_timer = { | 
|  | .init		= realview_pb11mp_timer_init, | 
|  | }; | 
|  |  | 
|  | static void realview_pb11mp_restart(char 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(0x0000, reset_ctrl); | 
|  | __raw_writel(0x0004, reset_ctrl); | 
|  | dsb(); | 
|  | } | 
|  |  | 
|  | static void __init realview_pb11mp_init(void) | 
|  | { | 
|  | int i; | 
|  |  | 
|  | #ifdef CONFIG_CACHE_L2X0 | 
|  | /* 1MB (128KB/way), 8-way associativity, evmon/parity/share enabled | 
|  | * Bits:  .... ...0 0111 1001 0000 .... .... .... */ | 
|  | l2x0_init(__io_address(REALVIEW_TC11MP_L220_BASE), 0x00790000, 0xfe000fff); | 
|  | #endif | 
|  |  | 
|  | realview_flash_register(realview_pb11mp_flash_resource, | 
|  | ARRAY_SIZE(realview_pb11mp_flash_resource)); | 
|  | realview_eth_register(NULL, realview_pb11mp_smsc911x_resources); | 
|  | platform_device_register(&realview_i2c_device); | 
|  | platform_device_register(&realview_cf_device); | 
|  | realview_usb_register(realview_pb11mp_isp1761_resources); | 
|  | platform_device_register(&pmu_device); | 
|  |  | 
|  | 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_PB11MP, "ARM-RealView PB11MPCore") | 
|  | /* Maintainer: ARM Ltd/Deep Blue Solutions Ltd */ | 
|  | .atag_offset	= 0x100, | 
|  | .smp		= smp_ops(realview_smp_ops), | 
|  | .fixup		= realview_fixup, | 
|  | .map_io		= realview_pb11mp_map_io, | 
|  | .init_early	= realview_init_early, | 
|  | .init_irq	= gic_init_irq, | 
|  | .timer		= &realview_pb11mp_timer, | 
|  | .handle_irq	= gic_handle_irq, | 
|  | .init_machine	= realview_pb11mp_init, | 
|  | #ifdef CONFIG_ZONE_DMA | 
|  | .dma_zone_size	= SZ_256M, | 
|  | #endif | 
|  | .restart	= realview_pb11mp_restart, | 
|  | MACHINE_END |