[deliverable/linux.git] / arch / arm / mach-mxs / mach-mxs.c

/*
 * Copyright 2012 Freescale Semiconductor, Inc.
 * Copyright 2012 Linaro Ltd.
 *
 * The code contained herein is licensed under the GNU General Public
 * License. You may obtain a copy of the GNU General Public License
 * Version 2 or later at the following locations:
 *
 * http://www.opensource.org/licenses/gpl-license.html
 * http://www.gnu.org/copyleft/gpl.html
 */

#include <linux/clk.h>
#include <linux/clkdev.h>
#include <linux/err.h>
#include <linux/init.h>
#include <linux/init.h>
#include <linux/irqdomain.h>
#include <linux/mxsfb.h>
#include <linux/of_irq.h>
#include <linux/of_platform.h>
#include <asm/mach/arch.h>
#include <asm/mach/time.h>
#include <mach/common.h>

static struct fb_videomode mx23evk_video_modes[] = {
	{
		.name		= "Samsung-LMS430HF02",
		.refresh	= 60,
		.xres		= 480,
		.yres		= 272,
		.pixclock	= 108096, /* picosecond (9.2 MHz) */
		.left_margin	= 15,
		.right_margin	= 8,
		.upper_margin	= 12,
		.lower_margin	= 4,
		.hsync_len	= 1,
		.vsync_len	= 1,
		.sync		= FB_SYNC_DATA_ENABLE_HIGH_ACT |
				  FB_SYNC_DOTCLK_FAILING_ACT,
	},
};

static struct fb_videomode mx28evk_video_modes[] = {
	{
		.name		= "Seiko-43WVF1G",
		.refresh	= 60,
		.xres		= 800,
		.yres		= 480,
		.pixclock	= 29851, /* picosecond (33.5 MHz) */
		.left_margin	= 89,
		.right_margin	= 164,
		.upper_margin	= 23,
		.lower_margin	= 10,
		.hsync_len	= 10,
		.vsync_len	= 10,
		.sync		= FB_SYNC_DATA_ENABLE_HIGH_ACT |
				  FB_SYNC_DOTCLK_FAILING_ACT,
	},
};

static struct mxsfb_platform_data mxsfb_pdata __initdata;

static struct of_dev_auxdata mxs_auxdata_lookup[] __initdata = {
	OF_DEV_AUXDATA("fsl,imx23-lcdif", 0x80030000, NULL, &mxsfb_pdata),
	OF_DEV_AUXDATA("fsl,imx28-lcdif", 0x80030000, NULL, &mxsfb_pdata),
	{ /* sentinel */ }
};

static int __init mxs_icoll_add_irq_domain(struct device_node *np,
				struct device_node *interrupt_parent)
{
	irq_domain_add_legacy(np, 128, 0, 0, &irq_domain_simple_ops, NULL);

	return 0;
}

static int __init mxs_gpio_add_irq_domain(struct device_node *np,
				struct device_node *interrupt_parent)
{
	static int gpio_irq_base = MXS_GPIO_IRQ_START;

	irq_domain_add_legacy(np, 32, gpio_irq_base, 0, &irq_domain_simple_ops, NULL);
	gpio_irq_base += 32;

	return 0;
}

static const struct of_device_id mxs_irq_match[] __initconst = {
	{ .compatible = "fsl,mxs-icoll", .data = mxs_icoll_add_irq_domain, },
	{ .compatible = "fsl,mxs-gpio", .data = mxs_gpio_add_irq_domain, },
	{ /* sentinel */ }
};

static void __init mxs_dt_init_irq(void)
{
	icoll_init_irq();
	of_irq_init(mxs_irq_match);
}

static void __init imx23_timer_init(void)
{
	mx23_clocks_init();
}

static struct sys_timer imx23_timer = {
	.init = imx23_timer_init,
};

static void __init imx28_timer_init(void)
{
	mx28_clocks_init();
}

static struct sys_timer imx28_timer = {
	.init = imx28_timer_init,
};

enum mac_oui {
	OUI_FSL,
	OUI_DENX,
};

static void __init update_fec_mac_prop(enum mac_oui oui)
{
	struct device_node *np, *from = NULL;
	struct property *oldmac, *newmac;
	const u32 *ocotp = mxs_get_ocotp();
	u8 *macaddr;
	u32 val;
	int i;

	for (i = 0; i < 2; i++) {
		np = of_find_compatible_node(from, NULL, "fsl,imx28-fec");
		if (!np)
			return;
		from = np;

		newmac = kzalloc(sizeof(*newmac) + 6, GFP_KERNEL);
		if (!newmac)
			return;
		newmac->value = newmac + 1;
		newmac->length = 6;

		newmac->name = kstrdup("local-mac-address", GFP_KERNEL);
		if (!newmac->name) {
			kfree(newmac);
			return;
		}

		/*
		 * OCOTP only stores the last 4 octets for each mac address,
		 * so hard-code OUI here.
		 */
		macaddr = newmac->value;
		switch (oui) {
		case OUI_FSL:
			macaddr[0] = 0x00;
			macaddr[1] = 0x04;
			macaddr[2] = 0x9f;
			break;
		case OUI_DENX:
			macaddr[0] = 0xc0;
			macaddr[1] = 0xe5;
			macaddr[2] = 0x4e;
			break;
		}
		val = ocotp[i];
		macaddr[3] = (val >> 16) & 0xff;
		macaddr[4] = (val >> 8) & 0xff;
		macaddr[5] = (val >> 0) & 0xff;

		oldmac = of_find_property(np, newmac->name, NULL);
		if (oldmac)
			prom_update_property(np, newmac, oldmac);
		else
			prom_add_property(np, newmac);
	}
}

static void __init imx23_evk_init(void)
{
	mxsfb_pdata.mode_list = mx23evk_video_modes;
	mxsfb_pdata.mode_count = ARRAY_SIZE(mx23evk_video_modes);
	mxsfb_pdata.default_bpp = 32;
	mxsfb_pdata.ld_intf_width = STMLCDIF_24BIT;
}

static void __init imx28_evk_init(void)
{
	struct clk *clk;

	/* Enable fec phy clock */
	clk = clk_get_sys("enet_out", NULL);
	if (!IS_ERR(clk))
		clk_prepare_enable(clk);

	update_fec_mac_prop(OUI_FSL);

	mxsfb_pdata.mode_list = mx28evk_video_modes;
	mxsfb_pdata.mode_count = ARRAY_SIZE(mx28evk_video_modes);
	mxsfb_pdata.default_bpp = 32;
	mxsfb_pdata.ld_intf_width = STMLCDIF_24BIT;
}

static void __init mxs_machine_init(void)
{
	if (of_machine_is_compatible("fsl,imx28-evk"))
		imx28_evk_init();
	else if (of_machine_is_compatible("fsl,imx23-evk"))
		imx23_evk_init();

	of_platform_populate(NULL, of_default_bus_match_table,
			     mxs_auxdata_lookup, NULL);
}

static const char *imx23_dt_compat[] __initdata = {
	"fsl,imx23-evk",
	"olimex,imx23-olinuxino",
	"fsl,imx23",
	NULL,
};

static const char *imx28_dt_compat[] __initdata = {
	"crystalfontz,cfa10036",
	"fsl,imx28-evk",
	"fsl,imx28",
	NULL,
};

DT_MACHINE_START(IMX23, "Freescale i.MX23 (Device Tree)")
	.map_io		= mx23_map_io,
	.init_irq	= mxs_dt_init_irq,
	.timer		= &imx23_timer,
	.init_machine	= mxs_machine_init,
	.dt_compat	= imx23_dt_compat,
	.restart	= mxs_restart,
MACHINE_END

DT_MACHINE_START(IMX28, "Freescale i.MX28 (Device Tree)")
	.map_io		= mx28_map_io,
	.init_irq	= mxs_dt_init_irq,
	.timer		= &imx28_timer,
	.init_machine	= mxs_machine_init,
	.dt_compat	= imx28_dt_compat,
	.restart	= mxs_restart,
MACHINE_END
Commit	Line	Data
bc3a59c1 DA	1	/*
	2	* Copyright 2012 Freescale Semiconductor, Inc.
	3	* Copyright 2012 Linaro Ltd.
	4	*
	5	* The code contained herein is licensed under the GNU General Public
	6	* License. You may obtain a copy of the GNU General Public License
	7	* Version 2 or later at the following locations:
	8	*
	9	* http://www.opensource.org/licenses/gpl-license.html
	10	* http://www.gnu.org/copyleft/gpl.html
	11	*/
	12
	13	#include <linux/clk.h>
	14	#include <linux/clkdev.h>
	15	#include <linux/err.h>
	16	#include <linux/init.h>
	17	#include <linux/init.h>
	18	#include <linux/irqdomain.h>
ab2815c3	19	#include <linux/mxsfb.h>
bc3a59c1 DA	20	#include <linux/of_irq.h>
	21	#include <linux/of_platform.h>
	22	#include <asm/mach/arch.h>
	23	#include <asm/mach/time.h>
	24	#include <mach/common.h>
	25
ab2815c3 SG	26	static struct fb_videomode mx23evk_video_modes[] = {
	27	{
	28	.name = "Samsung-LMS430HF02",
	29	.refresh = 60,
	30	.xres = 480,
	31	.yres = 272,
	32	.pixclock = 108096, /* picosecond (9.2 MHz) */
	33	.left_margin = 15,
	34	.right_margin = 8,
	35	.upper_margin = 12,
	36	.lower_margin = 4,
	37	.hsync_len = 1,
	38	.vsync_len = 1,
	39	.sync = FB_SYNC_DATA_ENABLE_HIGH_ACT \|
	40	FB_SYNC_DOTCLK_FAILING_ACT,
	41	},
	42	};
	43
	44	static struct fb_videomode mx28evk_video_modes[] = {
	45	{
	46	.name = "Seiko-43WVF1G",
	47	.refresh = 60,
	48	.xres = 800,
	49	.yres = 480,
	50	.pixclock = 29851, /* picosecond (33.5 MHz) */
	51	.left_margin = 89,
	52	.right_margin = 164,
	53	.upper_margin = 23,
	54	.lower_margin = 10,
	55	.hsync_len = 10,
	56	.vsync_len = 10,
	57	.sync = FB_SYNC_DATA_ENABLE_HIGH_ACT \|
	58	FB_SYNC_DOTCLK_FAILING_ACT,
	59	},
	60	};
	61
	62	static struct mxsfb_platform_data mxsfb_pdata __initdata;
	63
	64	static struct of_dev_auxdata mxs_auxdata_lookup[] __initdata = {
	65	OF_DEV_AUXDATA("fsl,imx23-lcdif", 0x80030000, NULL, &mxsfb_pdata),
	66	OF_DEV_AUXDATA("fsl,imx28-lcdif", 0x80030000, NULL, &mxsfb_pdata),
	67	{ /* sentinel */ }
	68	};
	69
bc3a59c1 DA	70	static int __init mxs_icoll_add_irq_domain(struct device_node *np,
	71	struct device_node *interrupt_parent)
	72	{
	73	irq_domain_add_legacy(np, 128, 0, 0, &irq_domain_simple_ops, NULL);
	74
	75	return 0;
	76	}
	77
ce4c6f9b SG	78	static int __init mxs_gpio_add_irq_domain(struct device_node *np,
	79	struct device_node *interrupt_parent)
	80	{
	81	static int gpio_irq_base = MXS_GPIO_IRQ_START;
	82
	83	irq_domain_add_legacy(np, 32, gpio_irq_base, 0, &irq_domain_simple_ops, NULL);
	84	gpio_irq_base += 32;
	85
	86	return 0;
	87	}
	88
bc3a59c1 DA	89	static const struct of_device_id mxs_irq_match[] __initconst = {
bc3a59c1 DA	90	{ .compatible = "fsl,mxs-icoll", .data = mxs_icoll_add_irq_domain, },
ce4c6f9b	91	{ .compatible = "fsl,mxs-gpio", .data = mxs_gpio_add_irq_domain, },
bc3a59c1 DA	92	{ /* sentinel */ }
	93	};
	94
	95	static void __init mxs_dt_init_irq(void)
	96	{
	97	icoll_init_irq();
	98	of_irq_init(mxs_irq_match);
	99	}
	100
2954ff39 SG	101	static void __init imx23_timer_init(void)
	102	{
	103	mx23_clocks_init();
	104	}
	105
	106	static struct sys_timer imx23_timer = {
	107	.init = imx23_timer_init,
	108	};
	109
bc3a59c1 DA	110	static void __init imx28_timer_init(void)
	111	{
	112	mx28_clocks_init();
	113	}
	114
	115	static struct sys_timer imx28_timer = {
	116	.init = imx28_timer_init,
	117	};
	118
5653acc2 SG	119	enum mac_oui {
	120	OUI_FSL,
	121	OUI_DENX,
	122	};
	123
	124	static void __init update_fec_mac_prop(enum mac_oui oui)
	125	{
	126	struct device_node np, from = NULL;
	127	struct property oldmac, newmac;
	128	const u32 *ocotp = mxs_get_ocotp();
	129	u8 *macaddr;
	130	u32 val;
	131	int i;
	132
	133	for (i = 0; i < 2; i++) {
	134	np = of_find_compatible_node(from, NULL, "fsl,imx28-fec");
	135	if (!np)
	136	return;
	137	from = np;
	138
	139	newmac = kzalloc(sizeof(*newmac) + 6, GFP_KERNEL);
	140	if (!newmac)
	141	return;
	142	newmac->value = newmac + 1;
	143	newmac->length = 6;
	144
	145	newmac->name = kstrdup("local-mac-address", GFP_KERNEL);
	146	if (!newmac->name) {
	147	kfree(newmac);
	148	return;
	149	}
	150
	151	/*
	152	* OCOTP only stores the last 4 octets for each mac address,
	153	* so hard-code OUI here.
	154	*/
	155	macaddr = newmac->value;
	156	switch (oui) {
	157	case OUI_FSL:
	158	macaddr[0] = 0x00;
	159	macaddr[1] = 0x04;
	160	macaddr[2] = 0x9f;
	161	break;
	162	case OUI_DENX:
	163	macaddr[0] = 0xc0;
	164	macaddr[1] = 0xe5;
	165	macaddr[2] = 0x4e;
	166	break;
	167	}
	168	val = ocotp[i];
	169	macaddr[3] = (val >> 16) & 0xff;
	170	macaddr[4] = (val >> 8) & 0xff;
	171	macaddr[5] = (val >> 0) & 0xff;
	172
	173	oldmac = of_find_property(np, newmac->name, NULL);
	174	if (oldmac)
	175	prom_update_property(np, newmac, oldmac);
	176	else
	177	prom_add_property(np, newmac);
	178	}
	179	}
	180
ab2815c3 SG	181	static void __init imx23_evk_init(void)
	182	{
	183	mxsfb_pdata.mode_list = mx23evk_video_modes;
	184	mxsfb_pdata.mode_count = ARRAY_SIZE(mx23evk_video_modes);
	185	mxsfb_pdata.default_bpp = 32;
	186	mxsfb_pdata.ld_intf_width = STMLCDIF_24BIT;
	187	}
	188
bc3a59c1 DA	189	static void __init imx28_evk_init(void)
	190	{
	191	struct clk *clk;
	192
	193	/* Enable fec phy clock */
	194	clk = clk_get_sys("enet_out", NULL);
	195	if (!IS_ERR(clk))
	196	clk_prepare_enable(clk);
5653acc2 SG	197
5653acc2 SG	198	update_fec_mac_prop(OUI_FSL);
ab2815c3 SG	199
	200	mxsfb_pdata.mode_list = mx28evk_video_modes;
	201	mxsfb_pdata.mode_count = ARRAY_SIZE(mx28evk_video_modes);
	202	mxsfb_pdata.default_bpp = 32;
	203	mxsfb_pdata.ld_intf_width = STMLCDIF_24BIT;
bc3a59c1 DA	204	}
	205
	206	static void __init mxs_machine_init(void)
	207	{
	208	if (of_machine_is_compatible("fsl,imx28-evk"))
	209	imx28_evk_init();
ab2815c3 SG	210	else if (of_machine_is_compatible("fsl,imx23-evk"))
ab2815c3 SG	211	imx23_evk_init();
bc3a59c1 DA	212
bc3a59c1 DA	213	of_platform_populate(NULL, of_default_bus_match_table,
ab2815c3	214	mxs_auxdata_lookup, NULL);
bc3a59c1 DA	215	}
bc3a59c1 DA	216
2954ff39 SG	217	static const char *imx23_dt_compat[] __initdata = {
2954ff39 SG	218	"fsl,imx23-evk",
b9df4491	219	"olimex,imx23-olinuxino",
2954ff39 SG	220	"fsl,imx23",
	221	NULL,
	222	};
	223
bc3a59c1	224	static const char *imx28_dt_compat[] __initdata = {
330eaaf9	225	"crystalfontz,cfa10036",
bc3a59c1 DA	226	"fsl,imx28-evk",
	227	"fsl,imx28",
	228	NULL,
	229	};
	230
2954ff39 SG	231	DT_MACHINE_START(IMX23, "Freescale i.MX23 (Device Tree)")
	232	.map_io = mx23_map_io,
	233	.init_irq = mxs_dt_init_irq,
	234	.timer = &imx23_timer,
	235	.init_machine = mxs_machine_init,
	236	.dt_compat = imx23_dt_compat,
	237	.restart = mxs_restart,
	238	MACHINE_END
	239
bc3a59c1 DA	240	DT_MACHINE_START(IMX28, "Freescale i.MX28 (Device Tree)")
	241	.map_io = mx28_map_io,
	242	.init_irq = mxs_dt_init_irq,
	243	.timer = &imx28_timer,
	244	.init_machine = mxs_machine_init,
	245	.dt_compat = imx28_dt_compat,
	246	.restart = mxs_restart,
	247	MACHINE_END