| 123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325326327328329330331332333334335336337338339340341342343344345346347348349350351352353354355356357 | /* * Versatile Express V2M Motherboard Support */#include <linux/device.h>#include <linux/amba/bus.h>#include <linux/amba/mmci.h>#include <linux/io.h>#include <linux/smp.h>#include <linux/init.h>#include <linux/of_address.h>#include <linux/of_fdt.h>#include <linux/of_irq.h>#include <linux/of_platform.h>#include <linux/platform_device.h>#include <linux/ata_platform.h>#include <linux/smsc911x.h>#include <linux/spinlock.h>#include <linux/usb/isp1760.h>#include <linux/mtd/physmap.h>#include <linux/regulator/fixed.h>#include <linux/regulator/machine.h>#include <linux/vexpress.h>#include <asm/arch_timer.h>#include <asm/mach-types.h>#include <asm/sizes.h>#include <asm/smp_twd.h>#include <asm/mach/arch.h>#include <asm/mach/map.h>#include <asm/mach/time.h>#include <asm/hardware/arm_timer.h>#include <asm/hardware/cache-l2x0.h>#include <asm/hardware/gic.h>#include <asm/hardware/timer-sp.h>#include <mach/ct-ca9x4.h>#include <mach/motherboard.h>#include <plat/sched_clock.h>#include <plat/platsmp.h>#include "core.h"#define V2M_PA_CS0	0x40000000#define V2M_PA_CS1	0x44000000#define V2M_PA_CS2	0x48000000#define V2M_PA_CS3	0x4c000000#define V2M_PA_CS7	0x10000000static struct map_desc v2m_io_desc[] __initdata = {	{		.virtual	= V2M_PERIPH,		.pfn		= __phys_to_pfn(V2M_PA_CS7),		.length		= SZ_128K,		.type		= MT_DEVICE,	},};static void __init v2m_sp804_init(void __iomem *base, unsigned int irq){	if (WARN_ON(!base || irq == NO_IRQ))		return;	writel(0, base + TIMER_1_BASE + TIMER_CTRL);	writel(0, base + TIMER_2_BASE + TIMER_CTRL);	sp804_clocksource_init(base + TIMER_2_BASE, "v2m-timer1");	sp804_clockevents_init(base + TIMER_1_BASE, irq, "v2m-timer0");}static struct resource v2m_pcie_i2c_resource = {	.start	= V2M_SERIAL_BUS_PCI,	.end	= V2M_SERIAL_BUS_PCI + SZ_4K - 1,	.flags	= IORESOURCE_MEM,};static struct platform_device v2m_pcie_i2c_device = {	.name		= "versatile-i2c",	.id		= 0,	.num_resources	= 1,	.resource	= &v2m_pcie_i2c_resource,};static struct resource v2m_ddc_i2c_resource = {	.start	= V2M_SERIAL_BUS_DVI,	.end	= V2M_SERIAL_BUS_DVI + SZ_4K - 1,	.flags	= IORESOURCE_MEM,};static struct platform_device v2m_ddc_i2c_device = {	.name		= "versatile-i2c",	.id		= 1,	.num_resources	= 1,	.resource	= &v2m_ddc_i2c_resource,};static struct resource v2m_eth_resources[] = {	{		.start	= V2M_LAN9118,		.end	= V2M_LAN9118 + SZ_64K - 1,		.flags	= IORESOURCE_MEM,	}, {		.start	= IRQ_V2M_LAN9118,		.end	= IRQ_V2M_LAN9118,		.flags	= IORESOURCE_IRQ,	},};static struct smsc911x_platform_config v2m_eth_config = {	.flags		= SMSC911X_USE_32BIT,	.irq_polarity	= SMSC911X_IRQ_POLARITY_ACTIVE_HIGH,	.irq_type	= SMSC911X_IRQ_TYPE_PUSH_PULL,	.phy_interface	= PHY_INTERFACE_MODE_MII,};static struct platform_device v2m_eth_device = {	.name		= "smsc911x",	.id		= -1,	.resource	= v2m_eth_resources,	.num_resources	= ARRAY_SIZE(v2m_eth_resources),	.dev.platform_data = &v2m_eth_config,};static struct regulator_consumer_supply v2m_eth_supplies[] = {	REGULATOR_SUPPLY("vddvario", "smsc911x"),	REGULATOR_SUPPLY("vdd33a", "smsc911x"),};static struct resource v2m_usb_resources[] = {	{		.start	= V2M_ISP1761,		.end	= V2M_ISP1761 + SZ_128K - 1,		.flags	= IORESOURCE_MEM,	}, {		.start	= IRQ_V2M_ISP1761,		.end	= IRQ_V2M_ISP1761,		.flags	= IORESOURCE_IRQ,	},};static struct isp1760_platform_data v2m_usb_config = {	.is_isp1761		= true,	.bus_width_16		= false,	.port1_otg		= true,	.analog_oc		= false,	.dack_polarity_high	= false,	.dreq_polarity_high	= false,};static struct platform_device v2m_usb_device = {	.name		= "isp1760",	.id		= -1,	.resource	= v2m_usb_resources,	.num_resources	= ARRAY_SIZE(v2m_usb_resources),	.dev.platform_data = &v2m_usb_config,};static struct physmap_flash_data v2m_flash_data = {	.width		= 4,};static struct resource v2m_flash_resources[] = {	{		.start	= V2M_NOR0,		.end	= V2M_NOR0 + SZ_64M - 1,		.flags	= IORESOURCE_MEM,	}, {		.start	= V2M_NOR1,		.end	= V2M_NOR1 + SZ_64M - 1,		.flags	= IORESOURCE_MEM,	},};static struct platform_device v2m_flash_device = {	.name		= "physmap-flash",	.id		= -1,	.resource	= v2m_flash_resources,	.num_resources	= ARRAY_SIZE(v2m_flash_resources),	.dev.platform_data = &v2m_flash_data,};static struct pata_platform_info v2m_pata_data = {	.ioport_shift	= 2,};static struct resource v2m_pata_resources[] = {	{		.start	= V2M_CF,		.end	= V2M_CF + 0xff,		.flags	= IORESOURCE_MEM,	}, {		.start	= V2M_CF + 0x100,		.end	= V2M_CF + SZ_4K - 1,		.flags	= IORESOURCE_MEM,	},};static struct platform_device v2m_cf_device = {	.name		= "pata_platform",	.id		= -1,	.resource	= v2m_pata_resources,	.num_resources	= ARRAY_SIZE(v2m_pata_resources),	.dev.platform_data = &v2m_pata_data,};static struct mmci_platform_data v2m_mmci_data = {	.ocr_mask	= MMC_VDD_32_33|MMC_VDD_33_34,	.gpio_wp	= VEXPRESS_GPIO_MMC_WPROT,	.gpio_cd	= VEXPRESS_GPIO_MMC_CARDIN,};static struct resource v2m_sysreg_resources[] = {	{		.start	= V2M_SYSREGS,		.end	= V2M_SYSREGS + 0xfff,		.flags	= IORESOURCE_MEM,	},};static struct platform_device v2m_sysreg_device = {	.name		= "vexpress-sysreg",	.id		= -1,	.resource	= v2m_sysreg_resources,	.num_resources	= ARRAY_SIZE(v2m_sysreg_resources),};static struct platform_device v2m_muxfpga_device = {	.name		= "vexpress-muxfpga",	.id		= 0,	.num_resources	= 1,	.resource	= (struct resource []) {		VEXPRESS_RES_FUNC(0, 7),	}};static struct platform_device v2m_shutdown_device = {	.name		= "vexpress-shutdown",	.id		= 0,	.num_resources	= 1,	.resource	= (struct resource []) {		VEXPRESS_RES_FUNC(0, 8),	}};static struct platform_device v2m_reboot_device = {	.name		= "vexpress-reboot",	.id		= 0,	.num_resources	= 1,	.resource	= (struct resource []) {		VEXPRESS_RES_FUNC(0, 9),	}};static struct platform_device v2m_dvimode_device = {	.name		= "vexpress-dvimode",	.id		= 0,	.num_resources	= 1,	.resource	= (struct resource []) {		VEXPRESS_RES_FUNC(0, 11),	}};static AMBA_APB_DEVICE(aaci,  "mb:aaci",  0, V2M_AACI, IRQ_V2M_AACI, NULL);static AMBA_APB_DEVICE(mmci,  "mb:mmci",  0, V2M_MMCI, IRQ_V2M_MMCI, &v2m_mmci_data);static AMBA_APB_DEVICE(kmi0,  "mb:kmi0",  0, V2M_KMI0, IRQ_V2M_KMI0, NULL);static AMBA_APB_DEVICE(kmi1,  "mb:kmi1",  0, V2M_KMI1, IRQ_V2M_KMI1, NULL);static AMBA_APB_DEVICE(uart0, "mb:uart0", 0, V2M_UART0, IRQ_V2M_UART0, NULL);static AMBA_APB_DEVICE(uart1, "mb:uart1", 0, V2M_UART1, IRQ_V2M_UART1, NULL);static AMBA_APB_DEVICE(uart2, "mb:uart2", 0, V2M_UART2, IRQ_V2M_UART2, NULL);static AMBA_APB_DEVICE(uart3, "mb:uart3", 0, V2M_UART3, IRQ_V2M_UART3, NULL);static AMBA_APB_DEVICE(wdt,   "mb:wdt",   0, V2M_WDT, IRQ_V2M_WDT, NULL);static AMBA_APB_DEVICE(rtc,   "mb:rtc",   0, V2M_RTC, IRQ_V2M_RTC, NULL);static struct amba_device *v2m_amba_devs[] __initdata = {	&aaci_device,	&mmci_device,	&kmi0_device,	&kmi1_device,	&uart0_device,	&uart1_device,	&uart2_device,	&uart3_device,	&wdt_device,	&rtc_device,};static void __init v2m_timer_init(void){	vexpress_clk_init(ioremap(V2M_SYSCTL, SZ_4K));	v2m_sp804_init(ioremap(V2M_TIMER01, SZ_4K), IRQ_V2M_TIMER0);}static struct sys_timer v2m_timer = {	.init	= v2m_timer_init,};static void __init v2m_init_early(void){	if (ct_desc->init_early)		ct_desc->init_early();	versatile_sched_clock_init(vexpress_get_24mhz_clock_base(), 24000000);}struct ct_desc *ct_desc;static struct ct_desc *ct_descs[] __initdata = {#ifdef CONFIG_ARCH_VEXPRESS_CA9X4	&ct_ca9x4_desc,#endif};static void __init v2m_populate_ct_desc(void){	int i;	u32 current_tile_id;	ct_desc = NULL;	current_tile_id = vexpress_get_procid(VEXPRESS_SITE_MASTER)				& V2M_CT_ID_MASK;	for (i = 0; i < ARRAY_SIZE(ct_descs) && !ct_desc; ++i)		if (ct_descs[i]->id == current_tile_id)			ct_desc = ct_descs[i];	if (!ct_desc)		panic("vexpress: this kernel does not support core tile ID 0x%08x when booting via ATAGs.\n"		      "You may need a device tree blob or a different kernel to boot on this board.\n",		      current_tile_id);}static void __init v2m_map_io(void){	iotable_init(v2m_io_desc, ARRAY_SIZE(v2m_io_desc));	vexpress_sysreg_early_init(ioremap(V2M_SYSREGS, SZ_4K));	v2m_populate_ct_desc();	ct_desc->map_io();}static void __init v2m_init_irq(void){	ct_desc->init_irq();}static void __init v2m_init(void){	int i;	regulator_register_fixed(0, v2m_eth_supplies,			ARRAY_SIZE(v2m_eth_supplies));	platform_device_register(&v2m_muxfpga_device);	platform_device_register(&v2m_shutdown_device);	platform_device_register(&v2m_reboot_device);	platform_device_register(&v2m_dvimode_device);	platform_device_register(&v2m_sysreg_device);
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