[linux-2.6-block.git] / arch / arm / mach-vexpress / v2m.c

/*
 * 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/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/clkdev.h>
#include <linux/mtd/physmap.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 <asm/hardware/sp810.h>

#include <mach/ct-ca9x4.h>
#include <mach/motherboard.h>

#include <plat/sched_clock.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	0x10000000

static 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 __iomem *v2m_sysreg_base;

static void __init v2m_sysctl_init(void __iomem *base)
{
	u32 scctrl;

	if (WARN_ON(!base))
		return;

	/* Select 1MHz TIMCLK as the reference clock for SP804 timers */
	scctrl = readl(base + SCCTRL);
	scctrl |= SCCTRL_TIMEREN0SEL_TIMCLK;
	scctrl |= SCCTRL_TIMEREN1SEL_TIMCLK;
	writel(scctrl, base + SCCTRL);
}

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 void __init v2m_timer_init(void)
{
	v2m_sysctl_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 DEFINE_SPINLOCK(v2m_cfg_lock);

int v2m_cfg_write(u32 devfn, u32 data)
{
	/* Configuration interface broken? */
	u32 val;

	printk("%s: writing %08x to %08x\n", __func__, data, devfn);

	devfn |= SYS_CFG_START | SYS_CFG_WRITE;

	spin_lock(&v2m_cfg_lock);
	val = readl(v2m_sysreg_base + V2M_SYS_CFGSTAT);
	writel(val & ~SYS_CFG_COMPLETE, v2m_sysreg_base + V2M_SYS_CFGSTAT);

	writel(data, v2m_sysreg_base +  V2M_SYS_CFGDATA);
	writel(devfn, v2m_sysreg_base + V2M_SYS_CFGCTRL);

	do {
		val = readl(v2m_sysreg_base + V2M_SYS_CFGSTAT);
	} while (val == 0);
	spin_unlock(&v2m_cfg_lock);

	return !!(val & SYS_CFG_ERR);
}

int v2m_cfg_read(u32 devfn, u32 *data)
{
	u32 val;

	devfn |= SYS_CFG_START;

	spin_lock(&v2m_cfg_lock);
	writel(0, v2m_sysreg_base + V2M_SYS_CFGSTAT);
	writel(devfn, v2m_sysreg_base + V2M_SYS_CFGCTRL);

	mb();

	do {
		cpu_relax();
		val = readl(v2m_sysreg_base + V2M_SYS_CFGSTAT);
	} while (val == 0);

	*data = readl(v2m_sysreg_base + V2M_SYS_CFGDATA);
	spin_unlock(&v2m_cfg_lock);

	return !!(val & SYS_CFG_ERR);
}

void __init v2m_flags_set(u32 data)
{
	writel(~0, v2m_sysreg_base + V2M_SYS_FLAGSCLR);
	writel(data, v2m_sysreg_base + V2M_SYS_FLAGSSET);
}


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 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 void v2m_flash_set_vpp(struct platform_device *pdev, int on)
{
	writel(on != 0, v2m_sysreg_base + V2M_SYS_FLASH);
}

static struct physmap_flash_data v2m_flash_data = {
	.width		= 4,
	.set_vpp	= v2m_flash_set_vpp,
};

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 unsigned int v2m_mmci_status(struct device *dev)
{
	return readl(v2m_sysreg_base + V2M_SYS_MCI) & (1 << 0);
}

static struct mmci_platform_data v2m_mmci_data = {
	.ocr_mask	= MMC_VDD_32_33|MMC_VDD_33_34,
	.status		= v2m_mmci_status,
};

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 long v2m_osc_round(struct clk *clk, unsigned long rate)
{
	return rate;
}

static int v2m_osc1_set(struct clk *clk, unsigned long rate)
{
	return v2m_cfg_write(SYS_CFG_OSC | SYS_CFG_SITE_MB | 1, rate);
}

static const struct clk_ops osc1_clk_ops = {
	.round	= v2m_osc_round,
	.set	= v2m_osc1_set,
};

static struct clk osc1_clk = {
	.ops	= &osc1_clk_ops,
	.rate	= 24000000,
};

static struct clk osc2_clk = {
	.rate	= 24000000,
};

static struct clk v2m_sp804_clk = {
	.rate	= 1000000,
};

static struct clk v2m_ref_clk = {
	.rate   = 32768,
};

static struct clk dummy_apb_pclk;

static struct clk_lookup v2m_lookups[] = {
	{	/* AMBA bus clock */
		.con_id		= "apb_pclk",
		.clk		= &dummy_apb_pclk,
	}, {	/* UART0 */
		.dev_id		= "mb:uart0",
		.clk		= &osc2_clk,
	}, {	/* UART1 */
		.dev_id		= "mb:uart1",
		.clk		= &osc2_clk,
	}, {	/* UART2 */
		.dev_id		= "mb:uart2",
		.clk		= &osc2_clk,
	}, {	/* UART3 */
		.dev_id		= "mb:uart3",
		.clk		= &osc2_clk,
	}, {	/* KMI0 */
		.dev_id		= "mb:kmi0",
		.clk		= &osc2_clk,
	}, {	/* KMI1 */
		.dev_id		= "mb:kmi1",
		.clk		= &osc2_clk,
	}, {	/* MMC0 */
		.dev_id		= "mb:mmci",
		.clk		= &osc2_clk,
	}, {	/* CLCD */
		.dev_id		= "mb:clcd",
		.clk		= &osc1_clk,
	}, {	/* SP805 WDT */
		.dev_id		= "mb:wdt",
		.clk		= &v2m_ref_clk,
	}, {	/* SP804 timers */
		.dev_id		= "sp804",
		.con_id		= "v2m-timer0",
		.clk		= &v2m_sp804_clk,
	}, {	/* SP804 timers */
		.dev_id		= "sp804",
		.con_id		= "v2m-timer1",
		.clk		= &v2m_sp804_clk,
	},
};

static void __init v2m_init_early(void)
{
	ct_desc->init_early();
	clkdev_add_table(v2m_lookups, ARRAY_SIZE(v2m_lookups));
	versatile_sched_clock_init(v2m_sysreg_base + V2M_SYS_24MHZ, 24000000);
}

static void v2m_power_off(void)
{
	if (v2m_cfg_write(SYS_CFG_SHUTDOWN | SYS_CFG_SITE_MB, 0))
		printk(KERN_EMERG "Unable to shutdown\n");
}

static void v2m_restart(char str, const char *cmd)
{
	if (v2m_cfg_write(SYS_CFG_REBOOT | SYS_CFG_SITE_MB, 0))
		printk(KERN_EMERG "Unable to reboot\n");
}

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 = readl(v2m_sysreg_base + V2M_SYS_PROCID0)
				& 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));
	v2m_sysreg_base = 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;

	platform_device_register(&v2m_pcie_i2c_device);
	platform_device_register(&v2m_ddc_i2c_device);
	platform_device_register(&v2m_flash_device);
	platform_device_register(&v2m_cf_device);
	platform_device_register(&v2m_eth_device);
	platform_device_register(&v2m_usb_device);

	for (i = 0; i < ARRAY_SIZE(v2m_amba_devs); i++)
		amba_device_register(v2m_amba_devs[i], &iomem_resource);

	pm_power_off = v2m_power_off;

	ct_desc->init_tile();
}

MACHINE_START(VEXPRESS, "ARM-Versatile Express")
	.atag_offset	= 0x100,
	.map_io		= v2m_map_io,
	.init_early	= v2m_init_early,
	.init_irq	= v2m_init_irq,
	.timer		= &v2m_timer,
	.handle_irq	= gic_handle_irq,
	.init_machine	= v2m_init,
	.restart	= v2m_restart,
MACHINE_END

#if defined(CONFIG_ARCH_VEXPRESS_DT)

static struct map_desc v2m_rs1_io_desc __initdata = {
	.virtual	= V2M_PERIPH,
	.pfn		= __phys_to_pfn(0x1c000000),
	.length		= SZ_2M,
	.type		= MT_DEVICE,
};

static int __init v2m_dt_scan_memory_map(unsigned long node, const char *uname,
		int depth, void *data)
{
	const char **map = data;

	if (strcmp(uname, "motherboard") != 0)
		return 0;

	*map = of_get_flat_dt_prop(node, "arm,v2m-memory-map", NULL);

	return 1;
}

void __init v2m_dt_map_io(void)
{
	const char *map = NULL;

	of_scan_flat_dt(v2m_dt_scan_memory_map, &map);

	if (map && strcmp(map, "rs1") == 0)
		iotable_init(&v2m_rs1_io_desc, 1);
	else
		iotable_init(v2m_io_desc, ARRAY_SIZE(v2m_io_desc));

#if defined(CONFIG_SMP)
	vexpress_dt_smp_map_io();
#endif
}

static struct clk_lookup v2m_dt_lookups[] = {
	{	/* AMBA bus clock */
		.con_id		= "apb_pclk",
		.clk		= &dummy_apb_pclk,
	}, {	/* SP804 timers */
		.dev_id		= "sp804",
		.con_id		= "v2m-timer0",
		.clk		= &v2m_sp804_clk,
	}, {	/* SP804 timers */
		.dev_id		= "sp804",
		.con_id		= "v2m-timer1",
		.clk		= &v2m_sp804_clk,
	}, {	/* PL180 MMCI */
		.dev_id		= "mb:mmci", /* 10005000.mmci */
		.clk		= &osc2_clk,
	}, {	/* PL050 KMI0 */
		.dev_id		= "10006000.kmi",
		.clk		= &osc2_clk,
	}, {	/* PL050 KMI1 */
		.dev_id		= "10007000.kmi",
		.clk		= &osc2_clk,
	}, {	/* PL011 UART0 */
		.dev_id		= "10009000.uart",
		.clk		= &osc2_clk,
	}, {	/* PL011 UART1 */
		.dev_id		= "1000a000.uart",
		.clk		= &osc2_clk,
	}, {	/* PL011 UART2 */
		.dev_id		= "1000b000.uart",
		.clk		= &osc2_clk,
	}, {	/* PL011 UART3 */
		.dev_id		= "1000c000.uart",
		.clk		= &osc2_clk,
	}, {	/* SP805 WDT */
		.dev_id		= "1000f000.wdt",
		.clk		= &v2m_ref_clk,
	}, {	/* PL111 CLCD */
		.dev_id		= "1001f000.clcd",
		.clk		= &osc1_clk,
	},
	/* RS1 memory map */
	{	/* PL180 MMCI */
		.dev_id		= "mb:mmci", /* 1c050000.mmci */
		.clk		= &osc2_clk,
	}, {	/* PL050 KMI0 */
		.dev_id		= "1c060000.kmi",
		.clk		= &osc2_clk,
	}, {	/* PL050 KMI1 */
		.dev_id		= "1c070000.kmi",
		.clk		= &osc2_clk,
	}, {	/* PL011 UART0 */
		.dev_id		= "1c090000.uart",
		.clk		= &osc2_clk,
	}, {	/* PL011 UART1 */
		.dev_id		= "1c0a0000.uart",
		.clk		= &osc2_clk,
	}, {	/* PL011 UART2 */
		.dev_id		= "1c0b0000.uart",
		.clk		= &osc2_clk,
	}, {	/* PL011 UART3 */
		.dev_id		= "1c0c0000.uart",
		.clk		= &osc2_clk,
	}, {	/* SP805 WDT */
		.dev_id		= "1c0f0000.wdt",
		.clk		= &v2m_ref_clk,
	}, {	/* PL111 CLCD */
		.dev_id		= "1c1f0000.clcd",
		.clk		= &osc1_clk,
	},
};

void __init v2m_dt_init_early(void)
{
	struct device_node *node;
	u32 dt_hbi;

	node = of_find_compatible_node(NULL, NULL, "arm,vexpress-sysreg");
	v2m_sysreg_base = of_iomap(node, 0);
	if (WARN_ON(!v2m_sysreg_base))
		return;

	/* Confirm board type against DT property, if available */
	if (of_property_read_u32(allnodes, "arm,hbi", &dt_hbi) == 0) {
		u32 misc = readl(v2m_sysreg_base + V2M_SYS_MISC);
		u32 id = readl(v2m_sysreg_base + (misc & SYS_MISC_MASTERSITE ?
				V2M_SYS_PROCID1 : V2M_SYS_PROCID0));
		u32 hbi = id & SYS_PROCIDx_HBI_MASK;

		if (WARN_ON(dt_hbi != hbi))
			pr_warning("vexpress: DT HBI (%x) is not matching "
					"hardware (%x)!\n", dt_hbi, hbi);
	}

	clkdev_add_table(v2m_dt_lookups, ARRAY_SIZE(v2m_dt_lookups));
}

static  struct of_device_id vexpress_irq_match[] __initdata = {
	{ .compatible = "arm,cortex-a9-gic", .data = gic_of_init, },
	{}
};

static void __init v2m_dt_init_irq(void)
{
	of_irq_init(vexpress_irq_match);
}

static void __init v2m_dt_timer_init(void)
{
	struct device_node *node;
	const char *path;
	int err;

	node = of_find_compatible_node(NULL, NULL, "arm,sp810");
	v2m_sysctl_init(of_iomap(node, 0));

	err = of_property_read_string(of_aliases, "arm,v2m_timer", &path);
	if (WARN_ON(err))
		return;
	node = of_find_node_by_path(path);
	v2m_sp804_init(of_iomap(node, 0), irq_of_parse_and_map(node, 0));
	if (arch_timer_of_register() != 0)
		twd_local_timer_of_register();

	if (arch_timer_sched_clock_init() != 0)
		versatile_sched_clock_init(v2m_sysreg_base + V2M_SYS_24MHZ, 24000000);
}

static struct sys_timer v2m_dt_timer = {
	.init = v2m_dt_timer_init,
};

static struct of_dev_auxdata v2m_dt_auxdata_lookup[] __initdata = {
	OF_DEV_AUXDATA("arm,vexpress-flash", V2M_NOR0, "physmap-flash",
			&v2m_flash_data),
	OF_DEV_AUXDATA("arm,primecell", V2M_MMCI, "mb:mmci", &v2m_mmci_data),
	/* RS1 memory map */
	OF_DEV_AUXDATA("arm,vexpress-flash", 0x08000000, "physmap-flash",
			&v2m_flash_data),
	OF_DEV_AUXDATA("arm,primecell", 0x1c050000, "mb:mmci", &v2m_mmci_data),
	{}
};

static void __init v2m_dt_init(void)
{
	l2x0_of_init(0x00400000, 0xfe0fffff);
	of_platform_populate(NULL, of_default_bus_match_table,
			v2m_dt_auxdata_lookup, NULL);
	pm_power_off = v2m_power_off;
}

const static char *v2m_dt_match[] __initconst = {
	"arm,vexpress",
	NULL,
};

DT_MACHINE_START(VEXPRESS_DT, "ARM-Versatile Express")
	.dt_compat	= v2m_dt_match,
	.map_io		= v2m_dt_map_io,
	.init_early	= v2m_dt_init_early,
	.init_irq	= v2m_dt_init_irq,
	.timer		= &v2m_dt_timer,
	.init_machine	= v2m_dt_init,
	.handle_irq	= gic_handle_irq,
	.restart	= v2m_restart,
MACHINE_END

#endif
Commit	Line	Data
ceade897 RK	1	/*
	2	* Versatile Express V2M Motherboard Support
	3	*/
	4	#include <linux/device.h>
	5	#include <linux/amba/bus.h>
	6	#include <linux/amba/mmci.h>
	7	#include <linux/io.h>
	8	#include <linux/init.h>
8deed178 PM	9	#include <linux/of_address.h>
	10	#include <linux/of_fdt.h>
	11	#include <linux/of_irq.h>
	12	#include <linux/of_platform.h>
ceade897	13	#include <linux/platform_device.h>
95c34f83	14	#include <linux/ata_platform.h>
ceade897 RK	15	#include <linux/smsc911x.h>
ceade897 RK	16	#include <linux/spinlock.h>
ceade897	17	#include <linux/usb/isp1760.h>
6d803ba7	18	#include <linux/clkdev.h>
0f71fd49	19	#include <linux/mtd/physmap.h>
ceade897	20
120f3d6c	21	#include <asm/arch_timer.h>
80b5efbd	22	#include <asm/mach-types.h>
ceade897	23	#include <asm/sizes.h>
120f3d6c	24	#include <asm/smp_twd.h>
80b5efbd	25	#include <asm/mach/arch.h>
ceade897 RK	26	#include <asm/mach/map.h>
	27	#include <asm/mach/time.h>
	28	#include <asm/hardware/arm_timer.h>
8deed178 PM	29	#include <asm/hardware/cache-l2x0.h>
8deed178 PM	30	#include <asm/hardware/gic.h>
58daf18c	31	#include <asm/hardware/timer-sp.h>
baaece22	32	#include <asm/hardware/sp810.h>
ceade897	33
80b5efbd	34	#include <mach/ct-ca9x4.h>
ceade897 RK	35	#include <mach/motherboard.h>
ceade897 RK	36
0af85dda	37	#include <plat/sched_clock.h>
ceade897 RK	38
	39	#include "core.h"
	40
	41	#define V2M_PA_CS0 0x40000000
	42	#define V2M_PA_CS1 0x44000000
	43	#define V2M_PA_CS2 0x48000000
	44	#define V2M_PA_CS3 0x4c000000
	45	#define V2M_PA_CS7 0x10000000
	46
	47	static struct map_desc v2m_io_desc[] __initdata = {
	48	{
98ed4ceb	49	.virtual = V2M_PERIPH,
ceade897 RK	50	.pfn = __phys_to_pfn(V2M_PA_CS7),
	51	.length = SZ_128K,
	52	.type = MT_DEVICE,
	53	},
	54	};
	55
98ed4ceb PM	56	static void __iomem *v2m_sysreg_base;
	57
	58	static void __init v2m_sysctl_init(void __iomem *base)
ceade897	59	{
baaece22 PM	60	u32 scctrl;
baaece22 PM	61
98ed4ceb PM	62	if (WARN_ON(!base))
	63	return;
	64
baaece22	65	/* Select 1MHz TIMCLK as the reference clock for SP804 timers */
98ed4ceb	66	scctrl = readl(base + SCCTRL);
baaece22 PM	67	scctrl \|= SCCTRL_TIMEREN0SEL_TIMCLK;
baaece22 PM	68	scctrl \|= SCCTRL_TIMEREN1SEL_TIMCLK;
98ed4ceb PM	69	writel(scctrl, base + SCCTRL);
98ed4ceb PM	70	}
baaece22	71
98ed4ceb PM	72	static void __init v2m_sp804_init(void __iomem *base, unsigned int irq)
	73	{
	74	if (WARN_ON(!base \|\| irq == NO_IRQ))
	75	return;
	76
	77	writel(0, base + TIMER_1_BASE + TIMER_CTRL);
	78	writel(0, base + TIMER_2_BASE + TIMER_CTRL);
baaece22	79
98ed4ceb PM	80	sp804_clocksource_init(base + TIMER_2_BASE, "v2m-timer1");
	81	sp804_clockevents_init(base + TIMER_1_BASE, irq, "v2m-timer0");
	82	}
ceade897	83
98ed4ceb PM	84	static void __init v2m_timer_init(void)
	85	{
	86	v2m_sysctl_init(ioremap(V2M_SYSCTL, SZ_4K));
	87	v2m_sp804_init(ioremap(V2M_TIMER01, SZ_4K), IRQ_V2M_TIMER0);
ceade897 RK	88	}
ceade897 RK	89
80b5efbd	90	static struct sys_timer v2m_timer = {
ceade897 RK	91	.init = v2m_timer_init,
	92	};
	93
	94
	95	static DEFINE_SPINLOCK(v2m_cfg_lock);
	96
	97	int v2m_cfg_write(u32 devfn, u32 data)
	98	{
	99	/* Configuration interface broken? */
	100	u32 val;
	101
	102	printk("%s: writing %08x to %08x\n", __func__, data, devfn);
	103
	104	devfn \|= SYS_CFG_START \| SYS_CFG_WRITE;
	105
	106	spin_lock(&v2m_cfg_lock);
98ed4ceb PM	107	val = readl(v2m_sysreg_base + V2M_SYS_CFGSTAT);
98ed4ceb PM	108	writel(val & ~SYS_CFG_COMPLETE, v2m_sysreg_base + V2M_SYS_CFGSTAT);
ceade897	109
98ed4ceb PM	110	writel(data, v2m_sysreg_base + V2M_SYS_CFGDATA);
98ed4ceb PM	111	writel(devfn, v2m_sysreg_base + V2M_SYS_CFGCTRL);
ceade897 RK	112
ceade897 RK	113	do {
98ed4ceb	114	val = readl(v2m_sysreg_base + V2M_SYS_CFGSTAT);
ceade897 RK	115	} while (val == 0);
	116	spin_unlock(&v2m_cfg_lock);
	117
	118	return !!(val & SYS_CFG_ERR);
	119	}
	120
	121	int v2m_cfg_read(u32 devfn, u32 *data)
	122	{
	123	u32 val;
	124
	125	devfn \|= SYS_CFG_START;
	126
	127	spin_lock(&v2m_cfg_lock);
98ed4ceb PM	128	writel(0, v2m_sysreg_base + V2M_SYS_CFGSTAT);
98ed4ceb PM	129	writel(devfn, v2m_sysreg_base + V2M_SYS_CFGCTRL);
ceade897 RK	130
	131	mb();
	132
	133	do {
	134	cpu_relax();
98ed4ceb	135	val = readl(v2m_sysreg_base + V2M_SYS_CFGSTAT);
ceade897 RK	136	} while (val == 0);
ceade897 RK	137
98ed4ceb	138	*data = readl(v2m_sysreg_base + V2M_SYS_CFGDATA);
ceade897 RK	139	spin_unlock(&v2m_cfg_lock);
	140
	141	return !!(val & SYS_CFG_ERR);
	142	}
	143
98ed4ceb PM	144	void __init v2m_flags_set(u32 data)
	145	{
	146	writel(~0, v2m_sysreg_base + V2M_SYS_FLAGSCLR);
	147	writel(data, v2m_sysreg_base + V2M_SYS_FLAGSSET);
	148	}
	149
ceade897 RK	150
	151	static struct resource v2m_pcie_i2c_resource = {
	152	.start = V2M_SERIAL_BUS_PCI,
	153	.end = V2M_SERIAL_BUS_PCI + SZ_4K - 1,
	154	.flags = IORESOURCE_MEM,
	155	};
	156
	157	static struct platform_device v2m_pcie_i2c_device = {
	158	.name = "versatile-i2c",
	159	.id = 0,
	160	.num_resources = 1,
	161	.resource = &v2m_pcie_i2c_resource,
	162	};
	163
	164	static struct resource v2m_ddc_i2c_resource = {
	165	.start = V2M_SERIAL_BUS_DVI,
	166	.end = V2M_SERIAL_BUS_DVI + SZ_4K - 1,
	167	.flags = IORESOURCE_MEM,
	168	};
	169
	170	static struct platform_device v2m_ddc_i2c_device = {
	171	.name = "versatile-i2c",
	172	.id = 1,
	173	.num_resources = 1,
	174	.resource = &v2m_ddc_i2c_resource,
	175	};
	176
	177	static struct resource v2m_eth_resources[] = {
	178	{
	179	.start = V2M_LAN9118,
	180	.end = V2M_LAN9118 + SZ_64K - 1,
	181	.flags = IORESOURCE_MEM,
	182	}, {
	183	.start = IRQ_V2M_LAN9118,
	184	.end = IRQ_V2M_LAN9118,
	185	.flags = IORESOURCE_IRQ,
	186	},
	187	};
	188
	189	static struct smsc911x_platform_config v2m_eth_config = {
	190	.flags = SMSC911X_USE_32BIT,
	191	.irq_polarity = SMSC911X_IRQ_POLARITY_ACTIVE_HIGH,
	192	.irq_type = SMSC911X_IRQ_TYPE_PUSH_PULL,
	193	.phy_interface = PHY_INTERFACE_MODE_MII,
	194	};
	195
	196	static struct platform_device v2m_eth_device = {
	197	.name = "smsc911x",
	198	.id = -1,
	199	.resource = v2m_eth_resources,
	200	.num_resources = ARRAY_SIZE(v2m_eth_resources),
	201	.dev.platform_data = &v2m_eth_config,
	202	};
	203
	204	static struct resource v2m_usb_resources[] = {
	205	{
	206	.start = V2M_ISP1761,
	207	.end = V2M_ISP1761 + SZ_128K - 1,
	208	.flags = IORESOURCE_MEM,
	209	}, {
	210	.start = IRQ_V2M_ISP1761,
	211	.end = IRQ_V2M_ISP1761,
	212	.flags = IORESOURCE_IRQ,
	213	},
214	};
215
216	static struct isp1760_platform_data v2m_usb_config = {
217	.is_isp1761 = true,
218	.bus_width_16 = false,
219	.port1_otg = true,
220	.analog_oc = false,
221	.dack_polarity_high = false,
222	.dreq_polarity_high = false,
223	};
224
225	static struct platform_device v2m_usb_device = {
226	.name = "isp1760",
227	.id = -1,
228	.resource = v2m_usb_resources,
229	.num_resources = ARRAY_SIZE(v2m_usb_resources),
230	.dev.platform_data = &v2m_usb_config,
231	};
232
667f390b	233	static void v2m_flash_set_vpp(struct platform_device *pdev, int on)
ceade897	234	{
98ed4ceb	235	writel(on != 0, v2m_sysreg_base + V2M_SYS_FLASH);
ceade897 RK	236	}
ceade897 RK	237
0f71fd49	238	static struct physmap_flash_data v2m_flash_data = {
ceade897	239	.width = 4,
ceade897 RK	240	.set_vpp = v2m_flash_set_vpp,
	241	};
	242
	243	static struct resource v2m_flash_resources[] = {
	244	{
	245	.start = V2M_NOR0,
	246	.end = V2M_NOR0 + SZ_64M - 1,
	247	.flags = IORESOURCE_MEM,
	248	}, {
	249	.start = V2M_NOR1,
	250	.end = V2M_NOR1 + SZ_64M - 1,
	251	.flags = IORESOURCE_MEM,
	252	},
	253	};
	254
	255	static struct platform_device v2m_flash_device = {
0f71fd49	256	.name = "physmap-flash",
ceade897 RK	257	.id = -1,
	258	.resource = v2m_flash_resources,
	259	.num_resources = ARRAY_SIZE(v2m_flash_resources),
	260	.dev.platform_data = &v2m_flash_data,
	261	};
	262
95c34f83 NB	263	static struct pata_platform_info v2m_pata_data = {
	264	.ioport_shift = 2,
	265	};
	266
	267	static struct resource v2m_pata_resources[] = {
	268	{
	269	.start = V2M_CF,
	270	.end = V2M_CF + 0xff,
	271	.flags = IORESOURCE_MEM,
	272	}, {
	273	.start = V2M_CF + 0x100,
	274	.end = V2M_CF + SZ_4K - 1,
	275	.flags = IORESOURCE_MEM,
	276	},
	277	};
	278
	279	static struct platform_device v2m_cf_device = {
	280	.name = "pata_platform",
	281	.id = -1,
	282	.resource = v2m_pata_resources,
	283	.num_resources = ARRAY_SIZE(v2m_pata_resources),
	284	.dev.platform_data = &v2m_pata_data,
	285	};
ceade897 RK	286
	287	static unsigned int v2m_mmci_status(struct device *dev)
	288	{
98ed4ceb	289	return readl(v2m_sysreg_base + V2M_SYS_MCI) & (1 << 0);
ceade897 RK	290	}
	291
	292	static struct mmci_platform_data v2m_mmci_data = {
	293	.ocr_mask = MMC_VDD_32_33\|MMC_VDD_33_34,
	294	.status = v2m_mmci_status,
	295	};
	296
cdd4e1a7 RK	297	static AMBA_APB_DEVICE(aaci, "mb:aaci", 0, V2M_AACI, IRQ_V2M_AACI, NULL);
	298	static AMBA_APB_DEVICE(mmci, "mb:mmci", 0, V2M_MMCI, IRQ_V2M_MMCI, &v2m_mmci_data);
	299	static AMBA_APB_DEVICE(kmi0, "mb:kmi0", 0, V2M_KMI0, IRQ_V2M_KMI0, NULL);
	300	static AMBA_APB_DEVICE(kmi1, "mb:kmi1", 0, V2M_KMI1, IRQ_V2M_KMI1, NULL);
	301	static AMBA_APB_DEVICE(uart0, "mb:uart0", 0, V2M_UART0, IRQ_V2M_UART0, NULL);
	302	static AMBA_APB_DEVICE(uart1, "mb:uart1", 0, V2M_UART1, IRQ_V2M_UART1, NULL);
	303	static AMBA_APB_DEVICE(uart2, "mb:uart2", 0, V2M_UART2, IRQ_V2M_UART2, NULL);
	304	static AMBA_APB_DEVICE(uart3, "mb:uart3", 0, V2M_UART3, IRQ_V2M_UART3, NULL);
	305	static AMBA_APB_DEVICE(wdt, "mb:wdt", 0, V2M_WDT, IRQ_V2M_WDT, NULL);
	306	static AMBA_APB_DEVICE(rtc, "mb:rtc", 0, V2M_RTC, IRQ_V2M_RTC, NULL);
ceade897 RK	307
	308	static struct amba_device *v2m_amba_devs[] __initdata = {
	309	&aaci_device,
	310	&mmci_device,
	311	&kmi0_device,
	312	&kmi1_device,
	313	&uart0_device,
	314	&uart1_device,
	315	&uart2_device,
	316	&uart3_device,
	317	&wdt_device,
	318	&rtc_device,
	319	};
	320
	321
	322	static long v2m_osc_round(struct clk *clk, unsigned long rate)
	323	{
	324	return rate;
	325	}
	326
	327	static int v2m_osc1_set(struct clk *clk, unsigned long rate)
	328	{
	329	return v2m_cfg_write(SYS_CFG_OSC \| SYS_CFG_SITE_MB \| 1, rate);
	330	}
	331
	332	static const struct clk_ops osc1_clk_ops = {
	333	.round = v2m_osc_round,
	334	.set = v2m_osc1_set,
	335	};
	336
	337	static struct clk osc1_clk = {
	338	.ops = &osc1_clk_ops,
	339	.rate = 24000000,
	340	};
	341
	342	static struct clk osc2_clk = {
	343	.rate = 24000000,
	344	};
	345
7ff550de RK	346	static struct clk v2m_sp804_clk = {
	347	.rate = 1000000,
	348	};
	349
0ebb962e NB	350	static struct clk v2m_ref_clk = {
	351	.rate = 32768,
	352	};
	353
3126c7bc RK	354	static struct clk dummy_apb_pclk;
3126c7bc RK	355
ceade897	356	static struct clk_lookup v2m_lookups[] = {
3126c7bc RK	357	{ /* AMBA bus clock */
	358	.con_id = "apb_pclk",
	359	.clk = &dummy_apb_pclk,
	360	}, { /* UART0 */
ceade897 RK	361	.dev_id = "mb:uart0",
	362	.clk = &osc2_clk,
	363	}, { /* UART1 */
	364	.dev_id = "mb:uart1",
	365	.clk = &osc2_clk,
	366	}, { /* UART2 */
	367	.dev_id = "mb:uart2",
	368	.clk = &osc2_clk,
	369	}, { /* UART3 */
	370	.dev_id = "mb:uart3",
	371	.clk = &osc2_clk,
	372	}, { /* KMI0 */
	373	.dev_id = "mb:kmi0",
	374	.clk = &osc2_clk,
	375	}, { /* KMI1 */
	376	.dev_id = "mb:kmi1",
	377	.clk = &osc2_clk,
	378	}, { /* MMC0 */
	379	.dev_id = "mb:mmci",
	380	.clk = &osc2_clk,
	381	}, { /* CLCD */
	382	.dev_id = "mb:clcd",
	383	.clk = &osc1_clk,
0ebb962e NB	384	}, { /* SP805 WDT */
	385	.dev_id = "mb:wdt",
	386	.clk = &v2m_ref_clk,
23828a7a RK	387	}, { /* SP804 timers */
	388	.dev_id = "sp804",
	389	.con_id = "v2m-timer0",
	390	.clk = &v2m_sp804_clk,
7ff550de RK	391	}, { /* SP804 timers */
	392	.dev_id = "sp804",
	393	.con_id = "v2m-timer1",
	394	.clk = &v2m_sp804_clk,
ceade897 RK	395	},
	396	};
	397
2fdf9993 RH	398	static void __init v2m_init_early(void)
	399	{
	400	ct_desc->init_early();
	401	clkdev_add_table(v2m_lookups, ARRAY_SIZE(v2m_lookups));
98ed4ceb	402	versatile_sched_clock_init(v2m_sysreg_base + V2M_SYS_24MHZ, 24000000);
2fdf9993 RH	403	}
2fdf9993 RH	404
ceade897 RK	405	static void v2m_power_off(void)
	406	{
	407	if (v2m_cfg_write(SYS_CFG_SHUTDOWN \| SYS_CFG_SITE_MB, 0))
	408	printk(KERN_EMERG "Unable to shutdown\n");
	409	}
	410
	411	static void v2m_restart(char str, const char *cmd)
	412	{
	413	if (v2m_cfg_write(SYS_CFG_REBOOT \| SYS_CFG_SITE_MB, 0))
	414	printk(KERN_EMERG "Unable to reboot\n");
	415	}
	416
80b5efbd WD	417	struct ct_desc *ct_desc;
	418
	419	static struct ct_desc *ct_descs[] __initdata = {
	420	#ifdef CONFIG_ARCH_VEXPRESS_CA9X4
	421	&ct_ca9x4_desc,
	422	#endif
	423	};
	424
	425	static void __init v2m_populate_ct_desc(void)
	426	{
	427	int i;
	428	u32 current_tile_id;
	429
	430	ct_desc = NULL;
98ed4ceb PM	431	current_tile_id = readl(v2m_sysreg_base + V2M_SYS_PROCID0)
98ed4ceb PM	432	& V2M_CT_ID_MASK;
80b5efbd WD	433
	434	for (i = 0; i < ARRAY_SIZE(ct_descs) && !ct_desc; ++i)
	435	if (ct_descs[i]->id == current_tile_id)
	436	ct_desc = ct_descs[i];
	437
	438	if (!ct_desc)
8deed178 PM	439	panic("vexpress: this kernel does not support core tile ID 0x%08x when booting via ATAGs.\n"
	440	"You may need a device tree blob or a different kernel to boot on this board.\n",
	441	current_tile_id);
80b5efbd WD	442	}
	443
	444	static void __init v2m_map_io(void)
	445	{
	446	iotable_init(v2m_io_desc, ARRAY_SIZE(v2m_io_desc));
98ed4ceb	447	v2m_sysreg_base = ioremap(V2M_SYSREGS, SZ_4K);
80b5efbd WD	448	v2m_populate_ct_desc();
	449	ct_desc->map_io();
	450	}
	451
	452	static void __init v2m_init_irq(void)
	453	{
	454	ct_desc->init_irq();
	455	}
	456
	457	static void __init v2m_init(void)
ceade897 RK	458	{
	459	int i;
	460
ceade897 RK	461	platform_device_register(&v2m_pcie_i2c_device);
	462	platform_device_register(&v2m_ddc_i2c_device);
	463	platform_device_register(&v2m_flash_device);
95c34f83	464	platform_device_register(&v2m_cf_device);
ceade897 RK	465	platform_device_register(&v2m_eth_device);
	466	platform_device_register(&v2m_usb_device);
	467
	468	for (i = 0; i < ARRAY_SIZE(v2m_amba_devs); i++)
	469	amba_device_register(v2m_amba_devs[i], &iomem_resource);
	470
	471	pm_power_off = v2m_power_off;
ceade897	472
80b5efbd	473	ct_desc->init_tile();
ceade897	474	}
80b5efbd WD	475
80b5efbd WD	476	MACHINE_START(VEXPRESS, "ARM-Versatile Express")
e9ce8e5b	477	.atag_offset = 0x100,
80b5efbd WD	478	.map_io = v2m_map_io,
	479	.init_early = v2m_init_early,
	480	.init_irq = v2m_init_irq,
	481	.timer = &v2m_timer,
abd3ca51	482	.handle_irq = gic_handle_irq,
80b5efbd	483	.init_machine = v2m_init,
f5733a1e	484	.restart = v2m_restart,
80b5efbd	485	MACHINE_END
8deed178 PM	486
	487	#if defined(CONFIG_ARCH_VEXPRESS_DT)
	488
6a371956 PM	489	static struct map_desc v2m_rs1_io_desc __initdata = {
	490	.virtual = V2M_PERIPH,
	491	.pfn = __phys_to_pfn(0x1c000000),
	492	.length = SZ_2M,
	493	.type = MT_DEVICE,
	494	};
	495
	496	static int __init v2m_dt_scan_memory_map(unsigned long node, const char *uname,
	497	int depth, void *data)
	498	{
	499	const char **map = data;
	500
	501	if (strcmp(uname, "motherboard") != 0)
	502	return 0;
	503
	504	*map = of_get_flat_dt_prop(node, "arm,v2m-memory-map", NULL);
	505
	506	return 1;
	507	}
	508
8deed178 PM	509	void __init v2m_dt_map_io(void)
8deed178 PM	510	{
6a371956 PM	511	const char *map = NULL;
	512
	513	of_scan_flat_dt(v2m_dt_scan_memory_map, &map);
	514
	515	if (map && strcmp(map, "rs1") == 0)
	516	iotable_init(&v2m_rs1_io_desc, 1);
	517	else
	518	iotable_init(v2m_io_desc, ARRAY_SIZE(v2m_io_desc));
8deed178 PM	519
	520	#if defined(CONFIG_SMP)
	521	vexpress_dt_smp_map_io();
	522	#endif
	523	}
	524
	525	static struct clk_lookup v2m_dt_lookups[] = {
	526	{ /* AMBA bus clock */
	527	.con_id = "apb_pclk",
	528	.clk = &dummy_apb_pclk,
	529	}, { /* SP804 timers */
	530	.dev_id = "sp804",
	531	.con_id = "v2m-timer0",
	532	.clk = &v2m_sp804_clk,
	533	}, { /* SP804 timers */
	534	.dev_id = "sp804",
	535	.con_id = "v2m-timer1",
	536	.clk = &v2m_sp804_clk,
	537	}, { /* PL180 MMCI */
	538	.dev_id = "mb:mmci", /* 10005000.mmci */
	539	.clk = &osc2_clk,
	540	}, { /* PL050 KMI0 */
	541	.dev_id = "10006000.kmi",
	542	.clk = &osc2_clk,
	543	}, { /* PL050 KMI1 */
	544	.dev_id = "10007000.kmi",
	545	.clk = &osc2_clk,
	546	}, { /* PL011 UART0 */
	547	.dev_id = "10009000.uart",
	548	.clk = &osc2_clk,
	549	}, { /* PL011 UART1 */
	550	.dev_id = "1000a000.uart",
	551	.clk = &osc2_clk,
	552	}, { /* PL011 UART2 */
	553	.dev_id = "1000b000.uart",
	554	.clk = &osc2_clk,
	555	}, { /* PL011 UART3 */
	556	.dev_id = "1000c000.uart",
	557	.clk = &osc2_clk,
	558	}, { /* SP805 WDT */
	559	.dev_id = "1000f000.wdt",
	560	.clk = &v2m_ref_clk,
	561	}, { /* PL111 CLCD */
	562	.dev_id = "1001f000.clcd",
	563	.clk = &osc1_clk,
	564	},
6a371956 PM	565	/* RS1 memory map */
	566	{ /* PL180 MMCI */
	567	.dev_id = "mb:mmci", /* 1c050000.mmci */
	568	.clk = &osc2_clk,
	569	}, { /* PL050 KMI0 */
	570	.dev_id = "1c060000.kmi",
	571	.clk = &osc2_clk,
	572	}, { /* PL050 KMI1 */
	573	.dev_id = "1c070000.kmi",
	574	.clk = &osc2_clk,
	575	}, { /* PL011 UART0 */
	576	.dev_id = "1c090000.uart",
	577	.clk = &osc2_clk,
	578	}, { /* PL011 UART1 */
	579	.dev_id = "1c0a0000.uart",
	580	.clk = &osc2_clk,
	581	}, { /* PL011 UART2 */
	582	.dev_id = "1c0b0000.uart",
	583	.clk = &osc2_clk,
	584	}, { /* PL011 UART3 */
	585	.dev_id = "1c0c0000.uart",
	586	.clk = &osc2_clk,
	587	}, { /* SP805 WDT */
	588	.dev_id = "1c0f0000.wdt",
	589	.clk = &v2m_ref_clk,
	590	}, { /* PL111 CLCD */
	591	.dev_id = "1c1f0000.clcd",
	592	.clk = &osc1_clk,
	593	},
8deed178 PM	594	};
	595
	596	void __init v2m_dt_init_early(void)
	597	{
	598	struct device_node *node;
	599	u32 dt_hbi;
	600
	601	node = of_find_compatible_node(NULL, NULL, "arm,vexpress-sysreg");
	602	v2m_sysreg_base = of_iomap(node, 0);
	603	if (WARN_ON(!v2m_sysreg_base))
	604	return;
	605
	606	/* Confirm board type against DT property, if available */
	607	if (of_property_read_u32(allnodes, "arm,hbi", &dt_hbi) == 0) {
	608	u32 misc = readl(v2m_sysreg_base + V2M_SYS_MISC);
	609	u32 id = readl(v2m_sysreg_base + (misc & SYS_MISC_MASTERSITE ?
	610	V2M_SYS_PROCID1 : V2M_SYS_PROCID0));
	611	u32 hbi = id & SYS_PROCIDx_HBI_MASK;
	612
	613	if (WARN_ON(dt_hbi != hbi))
	614	pr_warning("vexpress: DT HBI (%x) is not matching "
	615	"hardware (%x)!\n", dt_hbi, hbi);
	616	}
	617
	618	clkdev_add_table(v2m_dt_lookups, ARRAY_SIZE(v2m_dt_lookups));
8deed178 PM	619	}
	620
	621	static struct of_device_id vexpress_irq_match[] __initdata = {
	622	{ .compatible = "arm,cortex-a9-gic", .data = gic_of_init, },
	623	{}
	624	};
	625
	626	static void __init v2m_dt_init_irq(void)
	627	{
	628	of_irq_init(vexpress_irq_match);
	629	}
	630
	631	static void __init v2m_dt_timer_init(void)
	632	{
	633	struct device_node *node;
	634	const char *path;
	635	int err;
	636
	637	node = of_find_compatible_node(NULL, NULL, "arm,sp810");
	638	v2m_sysctl_init(of_iomap(node, 0));
	639
	640	err = of_property_read_string(of_aliases, "arm,v2m_timer", &path);
	641	if (WARN_ON(err))
	642	return;
	643	node = of_find_node_by_path(path);
	644	v2m_sp804_init(of_iomap(node, 0), irq_of_parse_and_map(node, 0));
120f3d6c MZ	645	if (arch_timer_of_register() != 0)
	646	twd_local_timer_of_register();
	647
	648	if (arch_timer_sched_clock_init() != 0)
	649	versatile_sched_clock_init(v2m_sysreg_base + V2M_SYS_24MHZ, 24000000);
8deed178 PM	650	}
	651
	652	static struct sys_timer v2m_dt_timer = {
	653	.init = v2m_dt_timer_init,
	654	};
	655
	656	static struct of_dev_auxdata v2m_dt_auxdata_lookup[] __initdata = {
	657	OF_DEV_AUXDATA("arm,vexpress-flash", V2M_NOR0, "physmap-flash",
	658	&v2m_flash_data),
	659	OF_DEV_AUXDATA("arm,primecell", V2M_MMCI, "mb:mmci", &v2m_mmci_data),
6a371956 PM	660	/* RS1 memory map */
	661	OF_DEV_AUXDATA("arm,vexpress-flash", 0x08000000, "physmap-flash",
	662	&v2m_flash_data),
	663	OF_DEV_AUXDATA("arm,primecell", 0x1c050000, "mb:mmci", &v2m_mmci_data),
8deed178 PM	664	{}
	665	};
	666
	667	static void __init v2m_dt_init(void)
	668	{
	669	l2x0_of_init(0x00400000, 0xfe0fffff);
	670	of_platform_populate(NULL, of_default_bus_match_table,
	671	v2m_dt_auxdata_lookup, NULL);
	672	pm_power_off = v2m_power_off;
	673	}
	674
	675	const static char *v2m_dt_match[] __initconst = {
	676	"arm,vexpress",
	677	NULL,
	678	};
	679
	680	DT_MACHINE_START(VEXPRESS_DT, "ARM-Versatile Express")
	681	.dt_compat = v2m_dt_match,
	682	.map_io = v2m_dt_map_io,
	683	.init_early = v2m_dt_init_early,
	684	.init_irq = v2m_dt_init_irq,
	685	.timer = &v2m_dt_timer,
	686	.init_machine = v2m_dt_init,
	687	.handle_irq = gic_handle_irq,
	688	.restart = v2m_restart,
	689	MACHINE_END
	690
	691	#endif