[mirror_ubuntu-eoan-kernel.git] / arch / arm / mach-nomadik / cpu-8815.c

/*
 * Copyright STMicroelectronics, 2007.
 *
 *  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/types.h>
#include <linux/init.h>
#include <linux/device.h>
#include <linux/amba/bus.h>
#include <linux/platform_device.h>
#include <linux/io.h>
#include <linux/slab.h>
#include <linux/irq.h>
#include <linux/dma-mapping.h>
#include <linux/irqchip.h>
#include <linux/platform_data/clk-nomadik.h>
#include <linux/platform_data/pinctrl-nomadik.h>
#include <linux/pinctrl/machine.h>
#include <linux/platform_data/clocksource-nomadik-mtu.h>
#include <linux/of_irq.h>
#include <linux/of_address.h>
#include <linux/of_platform.h>

#include <mach/hardware.h>
#include <mach/irqs.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>
#include <asm/mach/time.h>
#include <asm/mach-types.h>

#include <asm/cacheflush.h>
#include <asm/hardware/cache-l2x0.h>

#include "cpu-8815.h"

/* The 8815 has 4 GPIO blocks, let's register them immediately */
static resource_size_t __initdata cpu8815_gpio_base[] = {
	NOMADIK_GPIO0_BASE,
	NOMADIK_GPIO1_BASE,
	NOMADIK_GPIO2_BASE,
	NOMADIK_GPIO3_BASE,
};

static struct platform_device *
cpu8815_add_gpio(int id, resource_size_t addr, int irq,
		 struct nmk_gpio_platform_data *pdata)
{
	struct resource resources[] = {
		{
			.start	= addr,
			.end	= addr + 127,
			.flags	= IORESOURCE_MEM,
		},
		{
			.start	= irq,
			.end	= irq,
			.flags	= IORESOURCE_IRQ,
		}
	};

	return platform_device_register_resndata(NULL, "gpio", id,
				resources, ARRAY_SIZE(resources),
				pdata, sizeof(*pdata));
}

void cpu8815_add_gpios(resource_size_t *base, int num, int irq,
		       struct nmk_gpio_platform_data *pdata)
{
	int first = 0;
	int i;

	for (i = 0; i < num; i++, first += 32, irq++) {
		pdata->first_gpio = first;
		pdata->first_irq = NOMADIK_GPIO_TO_IRQ(first);
		pdata->num_gpio = 32;

		cpu8815_add_gpio(i, base[i], irq, pdata);
	}
}

static unsigned long out_low[] = { PIN_OUTPUT_LOW };
static unsigned long out_high[] = { PIN_OUTPUT_HIGH };
static unsigned long in_nopull[] = { PIN_INPUT_NOPULL };
static unsigned long in_pullup[] = { PIN_INPUT_PULLUP };

static struct pinctrl_map __initdata nhk8815_pinmap[] = {
	PIN_MAP_MUX_GROUP_DEFAULT("uart0", "pinctrl-stn8815", "u0_a_1", "u0"),
	PIN_MAP_MUX_GROUP_DEFAULT("uart1", "pinctrl-stn8815", "u1_a_1", "u1"),
	/* Hog in MMC/SD card mux */
	PIN_MAP_MUX_GROUP_HOG_DEFAULT("pinctrl-stn8815", "mmcsd_a_1", "mmcsd"),
	/* MCCLK */
	PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO8_B10", out_low),
	/* MCCMD */
	PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO9_A10", in_pullup),
	/* MCCMDDIR */
	PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO10_C11", out_high),
	/* MCDAT3-0 */
	PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO11_B11", in_pullup),
	PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO12_A11", in_pullup),
	PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO13_C12", in_pullup),
	PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO14_B12", in_pullup),
	/* MCDAT0DIR */
	PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO15_A12", out_high),
	/* MCDAT31DIR */
	PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO16_C13", out_high),
	/* MCMSFBCLK */
	PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO24_C15", in_pullup),
	/* CD input GPIO */
	PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO111_H21", in_nopull),
	/* CD bias drive */
	PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO112_J21", out_low),
	/* I2C0 */
	PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO62_D3", in_pullup),
	PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO63_D2", in_pullup),
	/* I2C1 */
	PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO53_L4", in_pullup),
	PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO54_L3", in_pullup),
	/* I2C2 */
	PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO73_C21", in_pullup),
	PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO74_C20", in_pullup),
};

static inline void
cpu8815_add_pinctrl(struct device *parent, const char *name)
{
	struct platform_device_info pdevinfo = {
		.parent = parent,
		.name = name,
		.id = -1,
	};

	pinctrl_register_mappings(nhk8815_pinmap, ARRAY_SIZE(nhk8815_pinmap));
	platform_device_register_full(&pdevinfo);
}

static int __init cpu8815_init(void)
{
	struct nmk_gpio_platform_data pdata = {
		/* No custom data yet */
	};

	cpu8815_add_gpios(cpu8815_gpio_base, ARRAY_SIZE(cpu8815_gpio_base),
			  IRQ_GPIO0, &pdata);
	cpu8815_add_pinctrl(NULL, "pinctrl-stn8815");
	if (machine_is_nomadik()) {
		amba_apb_device_add(NULL, "rng", NOMADIK_RNG_BASE, SZ_4K, 0, 0, NULL, 0);
		amba_apb_device_add(NULL, "rtc-pl031", NOMADIK_RTC_BASE, SZ_4K, IRQ_RTC_RTT, 0, NULL, 0);
	}
	return 0;
}
arch_initcall(cpu8815_init);

/* All SoC devices live in the same area (see hardware.h) */
static struct map_desc nomadik_io_desc[] __initdata = {
	{
		.virtual =	NOMADIK_IO_VIRTUAL,
		.pfn =		__phys_to_pfn(NOMADIK_IO_PHYSICAL),
		.length =	NOMADIK_IO_SIZE,
		.type = 	MT_DEVICE,
	}
	/* static ram and secured ram may be added later */
};

void __init cpu8815_map_io(void)
{
	iotable_init(nomadik_io_desc, ARRAY_SIZE(nomadik_io_desc));
}

void __init cpu8815_init_irq(void)
{
	/* This modified VIC cell has two register blocks, at 0 and 0x20 */
	vic_init(io_p2v(NOMADIK_IC_BASE + 0x00), IRQ_VIC_START +  0, ~0, 0);
	vic_init(io_p2v(NOMADIK_IC_BASE + 0x20), IRQ_VIC_START + 32, ~0, 0);

	/*
	 * Init clocks here so that they are available for system timer
	 * initialization.
	 */
	nomadik_clk_init();
}

/*
 * This function is called from the board init ("init_machine").
 */
 void __init cpu8815_platform_init(void)
{
#ifdef CONFIG_CACHE_L2X0
	/* At full speed latency must be >=2, so 0x249 in low bits */
	l2x0_init(io_p2v(NOMADIK_L2CC_BASE), 0x00730249, 0xfe000fff);
#endif
	 return;
}

void cpu8815_restart(char mode, const char *cmd)
{
	void __iomem *src_rstsr = io_p2v(NOMADIK_SRC_BASE + 0x18);

	/* FIXME: use egpio when implemented */

	/* Write anything to Reset status register */
	writel(1, src_rstsr);
}

#ifdef CONFIG_OF

/* Initial value for SRC control register: all timers use MXTAL/8 source */
#define SRC_CR_INIT_MASK	0x00007fff
#define SRC_CR_INIT_VAL		0x2aaa8000

static void __init cpu8815_timer_init_of(void)
{
	struct device_node *mtu;
	void __iomem *base;
	int irq;
	u32 src_cr;

	/* We need this to be up now */
	nomadik_clk_init();

	mtu = of_find_node_by_path("/mtu0");
	if (!mtu)
		return;
	base = of_iomap(mtu, 0);
	if (WARN_ON(!base))
		return;
	irq = irq_of_parse_and_map(mtu, 0);

	pr_info("Remapped MTU @ %p, irq: %d\n", base, irq);

	/* Configure timer sources in "system reset controller" ctrl reg */
	src_cr = readl(base);
	src_cr &= SRC_CR_INIT_MASK;
	src_cr |= SRC_CR_INIT_VAL;
	writel(src_cr, base);

	nmdk_timer_init(base, irq);
}

/* These are mostly to get the right device names for the clock lookups */
static struct of_dev_auxdata cpu8815_auxdata_lookup[] __initdata = {
	OF_DEV_AUXDATA("arm,primecell", NOMADIK_UART0_BASE,
		"uart0", NULL),
	OF_DEV_AUXDATA("arm,primecell", NOMADIK_UART1_BASE,
		"uart1", NULL),
	OF_DEV_AUXDATA("arm,primecell", NOMADIK_RNG_BASE,
		"rng", NULL),
	OF_DEV_AUXDATA("arm,primecell", NOMADIK_RTC_BASE,
		"rtc-pl031", NULL),
	{ /* sentinel */ },
};

static void __init cpu8815_init_of(void)
{
#ifdef CONFIG_CACHE_L2X0
	/* At full speed latency must be >=2, so 0x249 in low bits */
	l2x0_of_init(0x00730249, 0xfe000fff);
#endif
	of_platform_populate(NULL, of_default_bus_match_table,
			cpu8815_auxdata_lookup, NULL);
}

static const char * cpu8815_board_compat[] = {
	"calaosystems,usb-s8815",
	NULL,
};

DT_MACHINE_START(NOMADIK_DT, "Nomadik STn8815")
	.map_io		= cpu8815_map_io,
	.init_irq	= irqchip_init,
	.init_time	= cpu8815_timer_init_of,
	.init_machine	= cpu8815_init_of,
	.restart	= cpu8815_restart,
	.dt_compat      = cpu8815_board_compat,
MACHINE_END

#endif
Commit	Line	Data
28ad94ec AR	1	/*
	2	* Copyright STMicroelectronics, 2007.
	3	*
	4	* This program is free software; you can redistribute it and/or modify
	5	* it under the terms of the GNU General Public License as published by
	6	* the Free Software Foundation; either version 2 of the License, or
	7	* (at your option) any later version.
	8	*
	9	* This program is distributed in the hope that it will be useful,
	10	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	11	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	12	* GNU General Public License for more details.
	13	*
	14	* You should have received a copy of the GNU General Public License
	15	* along with this program; if not, write to the Free Software
	16	* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
	17	*/
	18
	19	#include <linux/types.h>
	20	#include <linux/init.h>
	21	#include <linux/device.h>
2ec1d359	22	#include <linux/amba/bus.h>
3e3c62ca	23	#include <linux/platform_device.h>
35b47a40	24	#include <linux/io.h>
7c77852d LW	25	#include <linux/slab.h>
	26	#include <linux/irq.h>
	27	#include <linux/dma-mapping.h>
f8635abd	28	#include <linux/irqchip.h>
4a31bd28	29	#include <linux/platform_data/clk-nomadik.h>
bb16bd9b	30	#include <linux/platform_data/pinctrl-nomadik.h>
1b542757	31	#include <linux/pinctrl/machine.h>
f8635abd LW	32	#include <linux/platform_data/clocksource-nomadik-mtu.h>
	33	#include <linux/of_irq.h>
	34	#include <linux/of_address.h>
	35	#include <linux/of_platform.h>
28ad94ec AR	36
	37	#include <mach/hardware.h>
	38	#include <mach/irqs.h>
f8635abd	39	#include <asm/mach/arch.h>
28ad94ec	40	#include <asm/mach/map.h>
f8635abd	41	#include <asm/mach/time.h>
27bda036	42	#include <asm/mach-types.h>
28ad94ec	43
0b260fd4 AR	44	#include <asm/cacheflush.h>
	45	#include <asm/hardware/cache-l2x0.h>
	46
61b38753	47	#include "cpu-8815.h"
ba327b1e	48
056c78d3 LW	49	/* The 8815 has 4 GPIO blocks, let's register them immediately */
	50	static resource_size_t __initdata cpu8815_gpio_base[] = {
	51	NOMADIK_GPIO0_BASE,
	52	NOMADIK_GPIO1_BASE,
	53	NOMADIK_GPIO2_BASE,
	54	NOMADIK_GPIO3_BASE,
3e3c62ca	55	};
2ec1d359	56
056c78d3 LW	57	static struct platform_device *
	58	cpu8815_add_gpio(int id, resource_size_t addr, int irq,
	59	struct nmk_gpio_platform_data *pdata)
	60	{
	61	struct resource resources[] = {
	62	{
	63	.start = addr,
	64	.end = addr + 127,
	65	.flags = IORESOURCE_MEM,
	66	},
	67	{
	68	.start = irq,
	69	.end = irq,
	70	.flags = IORESOURCE_IRQ,
	71	}
	72	};
	73
	74	return platform_device_register_resndata(NULL, "gpio", id,
	75	resources, ARRAY_SIZE(resources),
	76	pdata, sizeof(*pdata));
	77	}
2ec1d359	78
056c78d3 LW	79	void cpu8815_add_gpios(resource_size_t *base, int num, int irq,
	80	struct nmk_gpio_platform_data *pdata)
	81	{
	82	int first = 0;
	83	int i;
d2392ba0	84
056c78d3 LW	85	for (i = 0; i < num; i++, first += 32, irq++) {
	86	pdata->first_gpio = first;
	87	pdata->first_irq = NOMADIK_GPIO_TO_IRQ(first);
	88	pdata->num_gpio = 32;
3e3c62ca	89
056c78d3 LW	90	cpu8815_add_gpio(i, base[i], irq, pdata);
	91	}
	92	}
2ec1d359	93
1b542757 LW	94	static unsigned long out_low[] = { PIN_OUTPUT_LOW };
	95	static unsigned long out_high[] = { PIN_OUTPUT_HIGH };
	96	static unsigned long in_nopull[] = { PIN_INPUT_NOPULL };
	97	static unsigned long in_pullup[] = { PIN_INPUT_PULLUP };
	98
	99	static struct pinctrl_map __initdata nhk8815_pinmap[] = {
	100	PIN_MAP_MUX_GROUP_DEFAULT("uart0", "pinctrl-stn8815", "u0_a_1", "u0"),
	101	PIN_MAP_MUX_GROUP_DEFAULT("uart1", "pinctrl-stn8815", "u1_a_1", "u1"),
	102	/* Hog in MMC/SD card mux */
	103	PIN_MAP_MUX_GROUP_HOG_DEFAULT("pinctrl-stn8815", "mmcsd_a_1", "mmcsd"),
	104	/* MCCLK */
	105	PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO8_B10", out_low),
	106	/* MCCMD */
	107	PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO9_A10", in_pullup),
	108	/* MCCMDDIR */
	109	PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO10_C11", out_high),
	110	/* MCDAT3-0 */
	111	PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO11_B11", in_pullup),
	112	PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO12_A11", in_pullup),
	113	PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO13_C12", in_pullup),
	114	PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO14_B12", in_pullup),
	115	/* MCDAT0DIR */
	116	PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO15_A12", out_high),
	117	/* MCDAT31DIR */
	118	PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO16_C13", out_high),
	119	/* MCMSFBCLK */
	120	PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO24_C15", in_pullup),
	121	/* CD input GPIO */
	122	PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO111_H21", in_nopull),
	123	/* CD bias drive */
	124	PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO112_J21", out_low),
	125	/* I2C0 */
	126	PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO62_D3", in_pullup),
	127	PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO63_D2", in_pullup),
	128	/* I2C1 */
	129	PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO53_L4", in_pullup),
	130	PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO54_L3", in_pullup),
	131	/* I2C2 */
	132	PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO73_C21", in_pullup),
	133	PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO74_C20", in_pullup),
	134	};
	135
2601ccfe LW	136	static inline void
	137	cpu8815_add_pinctrl(struct device parent, const char name)
	138	{
	139	struct platform_device_info pdevinfo = {
	140	.parent = parent,
	141	.name = name,
	142	.id = -1,
	143	};
	144
1b542757	145	pinctrl_register_mappings(nhk8815_pinmap, ARRAY_SIZE(nhk8815_pinmap));
2601ccfe LW	146	platform_device_register_full(&pdevinfo);
	147	}
	148
2ec1d359 AR	149	static int __init cpu8815_init(void)
2ec1d359 AR	150	{
056c78d3 LW	151	struct nmk_gpio_platform_data pdata = {
	152	/* No custom data yet */
	153	};
2ec1d359	154
056c78d3 LW	155	cpu8815_add_gpios(cpu8815_gpio_base, ARRAY_SIZE(cpu8815_gpio_base),
056c78d3 LW	156	IRQ_GPIO0, &pdata);
2601ccfe	157	cpu8815_add_pinctrl(NULL, "pinctrl-stn8815");
27bda036 LW	158	if (machine_is_nomadik()) {
	159	amba_apb_device_add(NULL, "rng", NOMADIK_RNG_BASE, SZ_4K, 0, 0, NULL, 0);
	160	amba_apb_device_add(NULL, "rtc-pl031", NOMADIK_RTC_BASE, SZ_4K, IRQ_RTC_RTT, 0, NULL, 0);
	161	}
2ec1d359 AR	162	return 0;
	163	}
	164	arch_initcall(cpu8815_init);
	165
28ad94ec AR	166	/* All SoC devices live in the same area (see hardware.h) */
	167	static struct map_desc nomadik_io_desc[] __initdata = {
	168	{
	169	.virtual = NOMADIK_IO_VIRTUAL,
	170	.pfn = __phys_to_pfn(NOMADIK_IO_PHYSICAL),
	171	.length = NOMADIK_IO_SIZE,
	172	.type = MT_DEVICE,
	173	}
	174	/* static ram and secured ram may be added later */
	175	};
	176
	177	void __init cpu8815_map_io(void)
	178	{
	179	iotable_init(nomadik_io_desc, ARRAY_SIZE(nomadik_io_desc));
	180	}
	181
	182	void __init cpu8815_init_irq(void)
	183	{
	184	/* This modified VIC cell has two register blocks, at 0 and 0x20 */
	185	vic_init(io_p2v(NOMADIK_IC_BASE + 0x00), IRQ_VIC_START + 0, ~0, 0);
	186	vic_init(io_p2v(NOMADIK_IC_BASE + 0x20), IRQ_VIC_START + 32, ~0, 0);
ba327b1e LW	187
	188	/*
	189	* Init clocks here so that they are available for system timer
	190	* initialization.
	191	*/
4a31bd28	192	nomadik_clk_init();
28ad94ec AR	193	}
	194
	195	/*
	196	* This function is called from the board init ("init_machine").
28ad94ec AR	197	*/
	198	void __init cpu8815_platform_init(void)
	199	{
0b260fd4 AR	200	#ifdef CONFIG_CACHE_L2X0
	201	/* At full speed latency must be >=2, so 0x249 in low bits */
	202	l2x0_init(io_p2v(NOMADIK_L2CC_BASE), 0x00730249, 0xfe000fff);
	203	#endif
28ad94ec AR	204	return;
28ad94ec AR	205	}
35b47a40 RK	206
	207	void cpu8815_restart(char mode, const char *cmd)
	208	{
	209	void __iomem *src_rstsr = io_p2v(NOMADIK_SRC_BASE + 0x18);
	210
	211	/* FIXME: use egpio when implemented */
	212
	213	/* Write anything to Reset status register */
	214	writel(1, src_rstsr);
	215	}
f8635abd LW	216
	217	#ifdef CONFIG_OF
	218
	219	/* Initial value for SRC control register: all timers use MXTAL/8 source */
	220	#define SRC_CR_INIT_MASK 0x00007fff
	221	#define SRC_CR_INIT_VAL 0x2aaa8000
	222
	223	static void __init cpu8815_timer_init_of(void)
	224	{
	225	struct device_node *mtu;
	226	void __iomem *base;
	227	int irq;
	228	u32 src_cr;
	229
	230	/* We need this to be up now */
	231	nomadik_clk_init();
	232
	233	mtu = of_find_node_by_path("/mtu0");
	234	if (!mtu)
	235	return;
	236	base = of_iomap(mtu, 0);
	237	if (WARN_ON(!base))
	238	return;
	239	irq = irq_of_parse_and_map(mtu, 0);
	240
	241	pr_info("Remapped MTU @ %p, irq: %d\n", base, irq);
	242
	243	/* Configure timer sources in "system reset controller" ctrl reg */
	244	src_cr = readl(base);
	245	src_cr &= SRC_CR_INIT_MASK;
	246	src_cr \|= SRC_CR_INIT_VAL;
	247	writel(src_cr, base);
	248
	249	nmdk_timer_init(base, irq);
	250	}
	251
	252	/* These are mostly to get the right device names for the clock lookups */
	253	static struct of_dev_auxdata cpu8815_auxdata_lookup[] __initdata = {
	254	OF_DEV_AUXDATA("arm,primecell", NOMADIK_UART0_BASE,
	255	"uart0", NULL),
	256	OF_DEV_AUXDATA("arm,primecell", NOMADIK_UART1_BASE,
	257	"uart1", NULL),
27bda036 LW	258	OF_DEV_AUXDATA("arm,primecell", NOMADIK_RNG_BASE,
	259	"rng", NULL),
	260	OF_DEV_AUXDATA("arm,primecell", NOMADIK_RTC_BASE,
	261	"rtc-pl031", NULL),
f8635abd LW	262	{ /* sentinel */ },
	263	};
	264
	265	static void __init cpu8815_init_of(void)
	266	{
	267	#ifdef CONFIG_CACHE_L2X0
	268	/* At full speed latency must be >=2, so 0x249 in low bits */
	269	l2x0_of_init(0x00730249, 0xfe000fff);
	270	#endif
	271	of_platform_populate(NULL, of_default_bus_match_table,
	272	cpu8815_auxdata_lookup, NULL);
	273	}
	274
	275	static const char * cpu8815_board_compat[] = {
	276	"calaosystems,usb-s8815",
	277	NULL,
	278	};
	279
	280	DT_MACHINE_START(NOMADIK_DT, "Nomadik STn8815")
	281	.map_io = cpu8815_map_io,
	282	.init_irq = irqchip_init,
	283	.init_time = cpu8815_timer_init_of,
	284	.init_machine = cpu8815_init_of,
	285	.restart = cpu8815_restart,
	286	.dt_compat = cpu8815_board_compat,
	287	MACHINE_END
	288
	289	#endif