[deliverable/linux.git] / arch / arm / mach-omap2 / pdata-quirks.c

/*
 * Legacy platform_data quirks
 *
 * Copyright (C) 2013 Texas Instruments
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 */
#include <linux/clk.h>
#include <linux/davinci_emac.h>
#include <linux/gpio.h>
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/of_platform.h>
#include <linux/wl12xx.h>

#include <linux/platform_data/pinctrl-single.h>

#include "am35xx.h"
#include "common.h"
#include "common-board-devices.h"
#include "dss-common.h"
#include "control.h"

struct pdata_init {
	const char *compatible;
	void (*fn)(void);
};

struct of_dev_auxdata omap_auxdata_lookup[];
static struct twl4030_gpio_platform_data twl_gpio_auxdata;

/*
 * Create alias for USB host PHY clock.
 * Remove this when clock phandle can be provided via DT
 */
static void __init __used legacy_init_ehci_clk(char *clkname)
{
	int ret;

	ret = clk_add_alias("main_clk", NULL, clkname, NULL);
	if (ret)
		pr_err("%s:Failed to add main_clk alias to %s :%d\n",
		       __func__, clkname, ret);
}

#if IS_ENABLED(CONFIG_WL12XX)

static struct wl12xx_platform_data wl12xx __initdata;

static void __init __used legacy_init_wl12xx(unsigned ref_clock,
					     unsigned tcxo_clock,
					     int gpio)
{
	int res;

	wl12xx.board_ref_clock = ref_clock;
	wl12xx.board_tcxo_clock = tcxo_clock;
	wl12xx.irq = gpio_to_irq(gpio);

	res = wl12xx_set_platform_data(&wl12xx);
	if (res) {
		pr_err("error setting wl12xx data: %d\n", res);
		return;
	}
}
#else
static inline void legacy_init_wl12xx(unsigned ref_clock,
				      unsigned tcxo_clock,
				      int gpio)
{
}
#endif

#ifdef CONFIG_MACH_NOKIA_N8X0
static void __init omap2420_n8x0_legacy_init(void)
{
	omap_auxdata_lookup[0].platform_data = n8x0_legacy_init();
}
#else
#define omap2420_n8x0_legacy_init	NULL
#endif

#ifdef CONFIG_ARCH_OMAP3
static void __init hsmmc2_internal_input_clk(void)
{
	u32 reg;

	reg = omap_ctrl_readl(OMAP343X_CONTROL_DEVCONF1);
	reg |= OMAP2_MMCSDIO2ADPCLKISEL;
	omap_ctrl_writel(reg, OMAP343X_CONTROL_DEVCONF1);
}

static int omap3_sbc_t3730_twl_callback(struct device *dev,
					   unsigned gpio,
					   unsigned ngpio)
{
	int res;

	res = gpio_request_one(gpio + 2, GPIOF_OUT_INIT_HIGH,
			       "wlan pwr");
	if (res)
		return res;

	gpio_export(gpio, 0);

	return 0;
}

static void __init omap3_sbc_t3730_twl_init(void)
{
	twl_gpio_auxdata.setup = omap3_sbc_t3730_twl_callback;
}

static void __init omap3_sbc_t3730_legacy_init(void)
{
	legacy_init_wl12xx(WL12XX_REFCLOCK_38, 0, 136);
	omap_ads7846_init(1, 57, 0, NULL);
}

static void __init omap3_igep0020_legacy_init(void)
{
	omap3_igep2_display_init_of();
}

static void __init omap3_evm_legacy_init(void)
{
	legacy_init_wl12xx(WL12XX_REFCLOCK_38, 0, 149);
}

static void __init omap3_zoom_legacy_init(void)
{
	legacy_init_wl12xx(WL12XX_REFCLOCK_26, 0, 162);
}

static void am35xx_enable_emac_int(void)
{
	u32 v;

	v = omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR);
	v |= (AM35XX_CPGMAC_C0_RX_PULSE_CLR | AM35XX_CPGMAC_C0_TX_PULSE_CLR |
	      AM35XX_CPGMAC_C0_MISC_PULSE_CLR | AM35XX_CPGMAC_C0_RX_THRESH_CLR);
	omap_ctrl_writel(v, AM35XX_CONTROL_LVL_INTR_CLEAR);
	omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR); /* OCP barrier */
}

static void am35xx_disable_emac_int(void)
{
	u32 v;

	v = omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR);
	v |= (AM35XX_CPGMAC_C0_RX_PULSE_CLR | AM35XX_CPGMAC_C0_TX_PULSE_CLR);
	omap_ctrl_writel(v, AM35XX_CONTROL_LVL_INTR_CLEAR);
	omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR); /* OCP barrier */
}

static struct emac_platform_data am35xx_emac_pdata = {
	.interrupt_enable	= am35xx_enable_emac_int,
	.interrupt_disable	= am35xx_disable_emac_int,
};

static void __init am3517_evm_legacy_init(void)
{
	u32 v;

	v = omap_ctrl_readl(AM35XX_CONTROL_IP_SW_RESET);
	v &= ~AM35XX_CPGMACSS_SW_RST;
	omap_ctrl_writel(v, AM35XX_CONTROL_IP_SW_RESET);
	omap_ctrl_readl(AM35XX_CONTROL_IP_SW_RESET); /* OCP barrier */
}
#endif /* CONFIG_ARCH_OMAP3 */

#ifdef CONFIG_ARCH_OMAP4
static void __init omap4_sdp_legacy_init(void)
{
	omap_4430sdp_display_init_of();
	legacy_init_wl12xx(WL12XX_REFCLOCK_26,
			   WL12XX_TCXOCLOCK_26, 53);
}

static void __init omap4_panda_legacy_init(void)
{
	omap4_panda_display_init_of();
	legacy_init_ehci_clk("auxclk3_ck");
	legacy_init_wl12xx(WL12XX_REFCLOCK_38, 0, 53);
}
#endif

#ifdef CONFIG_SOC_OMAP5
static void __init omap5_uevm_legacy_init(void)
{
	legacy_init_ehci_clk("auxclk1_ck");
}
#endif

static struct pcs_pdata pcs_pdata;

void omap_pcs_legacy_init(int irq, void (*rearm)(void))
{
	pcs_pdata.irq = irq;
	pcs_pdata.rearm = rearm;
}

/*
 * GPIOs for TWL are initialized by the I2C bus and need custom
 * handing until DSS has device tree bindings.
 */
void omap_auxdata_legacy_init(struct device *dev)
{
	if (dev->platform_data)
		return;

	if (strcmp("twl4030-gpio", dev_name(dev)))
		return;

	dev->platform_data = &twl_gpio_auxdata;
}

/*
 * Few boards still need auxdata populated before we populate
 * the dev entries in of_platform_populate().
 */
static struct pdata_init auxdata_quirks[] __initdata = {
#ifdef CONFIG_SOC_OMAP2420
	{ "nokia,n800", omap2420_n8x0_legacy_init, },
	{ "nokia,n810", omap2420_n8x0_legacy_init, },
	{ "nokia,n810-wimax", omap2420_n8x0_legacy_init, },
#endif
#ifdef CONFIG_ARCH_OMAP3
	{ "compulab,omap3-sbc-t3730", omap3_sbc_t3730_twl_init, },
#endif
	{ /* sentinel */ },
};

struct of_dev_auxdata omap_auxdata_lookup[] __initdata = {
#ifdef CONFIG_MACH_NOKIA_N8X0
	OF_DEV_AUXDATA("ti,omap2420-mmc", 0x4809c000, "mmci-omap.0", NULL),
#endif
#ifdef CONFIG_ARCH_OMAP3
	OF_DEV_AUXDATA("ti,omap3-padconf", 0x48002030, "48002030.pinmux", &pcs_pdata),
	OF_DEV_AUXDATA("ti,omap3-padconf", 0x48002a00, "48002a00.pinmux", &pcs_pdata),
	/* Only on am3517 */
	OF_DEV_AUXDATA("ti,davinci_mdio", 0x5c030000, "davinci_mdio.0", NULL),
	OF_DEV_AUXDATA("ti,am3517-emac", 0x5c000000, "davinci_emac.0",
		       &am35xx_emac_pdata),
#endif
#ifdef CONFIG_ARCH_OMAP4
	OF_DEV_AUXDATA("ti,omap4-padconf", 0x4a100040, "4a100040.pinmux", &pcs_pdata),
	OF_DEV_AUXDATA("ti,omap4-padconf", 0x4a31e040, "4a31e040.pinmux", &pcs_pdata),
#endif
	{ /* sentinel */ },
};

/*
 * Few boards still need to initialize some legacy devices with
 * platform data until the drivers support device tree.
 */
static struct pdata_init pdata_quirks[] __initdata = {
#ifdef CONFIG_ARCH_OMAP3
	{ "compulab,omap3-sbc-t3730", omap3_sbc_t3730_legacy_init, },
	{ "nokia,omap3-n900", hsmmc2_internal_input_clk, },
	{ "nokia,omap3-n9", hsmmc2_internal_input_clk, },
	{ "nokia,omap3-n950", hsmmc2_internal_input_clk, },
	{ "isee,omap3-igep0020", omap3_igep0020_legacy_init, },
	{ "ti,omap3-evm-37xx", omap3_evm_legacy_init, },
	{ "ti,omap3-zoom3", omap3_zoom_legacy_init, },
	{ "ti,am3517-evm", am3517_evm_legacy_init, },
#endif
#ifdef CONFIG_ARCH_OMAP4
	{ "ti,omap4-sdp", omap4_sdp_legacy_init, },
	{ "ti,omap4-panda", omap4_panda_legacy_init, },
#endif
#ifdef CONFIG_SOC_OMAP5
	{ "ti,omap5-uevm", omap5_uevm_legacy_init, },
#endif
	{ /* sentinel */ },
};

static void pdata_quirks_check(struct pdata_init *quirks)
{
	while (quirks->compatible) {
		if (of_machine_is_compatible(quirks->compatible)) {
			if (quirks->fn)
				quirks->fn();
			break;
		}
		quirks++;
	}
}

void __init pdata_quirks_init(struct of_device_id *omap_dt_match_table)
{
	omap_sdrc_init(NULL, NULL);
	pdata_quirks_check(auxdata_quirks);
	of_platform_populate(NULL, omap_dt_match_table,
			     omap_auxdata_lookup, NULL);
	pdata_quirks_check(pdata_quirks);
}
Commit	Line	Data
6a08e1e6 TL	1	/*
	2	* Legacy platform_data quirks
	3	*
	4	* Copyright (C) 2013 Texas Instruments
	5	*
	6	* This program is free software; you can redistribute it and/or modify
	7	* it under the terms of the GNU General Public License version 2 as
	8	* published by the Free Software Foundation.
	9	*/
	10	#include <linux/clk.h>
71900314	11	#include <linux/davinci_emac.h>
5f0a2c69	12	#include <linux/gpio.h>
6a08e1e6 TL	13	#include <linux/init.h>
6a08e1e6 TL	14	#include <linux/kernel.h>
8651bd8c	15	#include <linux/of_platform.h>
5f0a2c69	16	#include <linux/wl12xx.h>
6a08e1e6	17
30a69ef7 TL	18	#include <linux/platform_data/pinctrl-single.h>
30a69ef7 TL	19
71900314	20	#include "am35xx.h"
6a08e1e6 TL	21	#include "common.h"
	22	#include "common-board-devices.h"
	23	#include "dss-common.h"
faf4bd47	24	#include "control.h"
6a08e1e6 TL	25
	26	struct pdata_init {
	27	const char *compatible;
	28	void (*fn)(void);
	29	};
	30
fa590c92	31	struct of_dev_auxdata omap_auxdata_lookup[];
dad12d11	32	static struct twl4030_gpio_platform_data twl_gpio_auxdata;
fa590c92	33
3e7a3185 TL	34	/*
	35	* Create alias for USB host PHY clock.
	36	* Remove this when clock phandle can be provided via DT
	37	*/
	38	static void __init __used legacy_init_ehci_clk(char *clkname)
	39	{
	40	int ret;
	41
	42	ret = clk_add_alias("main_clk", NULL, clkname, NULL);
	43	if (ret)
	44	pr_err("%s:Failed to add main_clk alias to %s :%d\n",
	45	__func__, clkname, ret);
	46	}
	47
5f0a2c69 TL	48	#if IS_ENABLED(CONFIG_WL12XX)
	49
	50	static struct wl12xx_platform_data wl12xx __initdata;
	51
	52	static void __init __used legacy_init_wl12xx(unsigned ref_clock,
	53	unsigned tcxo_clock,
	54	int gpio)
	55	{
	56	int res;
	57
	58	wl12xx.board_ref_clock = ref_clock;
	59	wl12xx.board_tcxo_clock = tcxo_clock;
	60	wl12xx.irq = gpio_to_irq(gpio);
	61
	62	res = wl12xx_set_platform_data(&wl12xx);
	63	if (res) {
	64	pr_err("error setting wl12xx data: %d\n", res);
	65	return;
	66	}
	67	}
	68	#else
	69	static inline void legacy_init_wl12xx(unsigned ref_clock,
	70	unsigned tcxo_clock,
	71	int gpio)
	72	{
	73	}
	74	#endif
	75
fa590c92 TL	76	#ifdef CONFIG_MACH_NOKIA_N8X0
	77	static void __init omap2420_n8x0_legacy_init(void)
	78	{
	79	omap_auxdata_lookup[0].platform_data = n8x0_legacy_init();
	80	}
	81	#else
	82	#define omap2420_n8x0_legacy_init NULL
	83	#endif
	84
faf4bd47 AK	85	#ifdef CONFIG_ARCH_OMAP3
	86	static void __init hsmmc2_internal_input_clk(void)
	87	{
	88	u32 reg;
	89
	90	reg = omap_ctrl_readl(OMAP343X_CONTROL_DEVCONF1);
	91	reg \|= OMAP2_MMCSDIO2ADPCLKISEL;
	92	omap_ctrl_writel(reg, OMAP343X_CONTROL_DEVCONF1);
	93	}
15c9887e	94
0f0cfc69 TL	95	static int omap3_sbc_t3730_twl_callback(struct device *dev,
	96	unsigned gpio,
	97	unsigned ngpio)
	98	{
	99	int res;
	100
	101	res = gpio_request_one(gpio + 2, GPIOF_OUT_INIT_HIGH,
d234e423	102	"wlan pwr");
0f0cfc69 TL	103	if (res)
	104	return res;
	105
	106	gpio_export(gpio, 0);
	107
	108	return 0;
	109	}
	110
	111	static void __init omap3_sbc_t3730_twl_init(void)
	112	{
	113	twl_gpio_auxdata.setup = omap3_sbc_t3730_twl_callback;
	114	}
	115
	116	static void __init omap3_sbc_t3730_legacy_init(void)
	117	{
	118	legacy_init_wl12xx(WL12XX_REFCLOCK_38, 0, 136);
	119	omap_ads7846_init(1, 57, 0, NULL);
	120	}
	121
15c9887e JMC	122	static void __init omap3_igep0020_legacy_init(void)
	123	{
	124	omap3_igep2_display_init_of();
	125	}
79b39f79 TL	126
	127	static void __init omap3_evm_legacy_init(void)
	128	{
	129	legacy_init_wl12xx(WL12XX_REFCLOCK_38, 0, 149);
	130	}
	131
	132	static void __init omap3_zoom_legacy_init(void)
	133	{
	134	legacy_init_wl12xx(WL12XX_REFCLOCK_26, 0, 162);
	135	}
71900314 TL	136
	137	static void am35xx_enable_emac_int(void)
	138	{
	139	u32 v;
	140
	141	v = omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR);
	142	v \|= (AM35XX_CPGMAC_C0_RX_PULSE_CLR \| AM35XX_CPGMAC_C0_TX_PULSE_CLR \|
	143	AM35XX_CPGMAC_C0_MISC_PULSE_CLR \| AM35XX_CPGMAC_C0_RX_THRESH_CLR);
	144	omap_ctrl_writel(v, AM35XX_CONTROL_LVL_INTR_CLEAR);
	145	omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR); /* OCP barrier */
	146	}
	147
	148	static void am35xx_disable_emac_int(void)
	149	{
	150	u32 v;
	151
	152	v = omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR);
	153	v \|= (AM35XX_CPGMAC_C0_RX_PULSE_CLR \| AM35XX_CPGMAC_C0_TX_PULSE_CLR);
	154	omap_ctrl_writel(v, AM35XX_CONTROL_LVL_INTR_CLEAR);
	155	omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR); /* OCP barrier */
	156	}
	157
	158	static struct emac_platform_data am35xx_emac_pdata = {
	159	.interrupt_enable = am35xx_enable_emac_int,
	160	.interrupt_disable = am35xx_disable_emac_int,
	161	};
	162
	163	static void __init am3517_evm_legacy_init(void)
	164	{
	165	u32 v;
	166
	167	v = omap_ctrl_readl(AM35XX_CONTROL_IP_SW_RESET);
	168	v &= ~AM35XX_CPGMACSS_SW_RST;
	169	omap_ctrl_writel(v, AM35XX_CONTROL_IP_SW_RESET);
	170	omap_ctrl_readl(AM35XX_CONTROL_IP_SW_RESET); /* OCP barrier */
	171	}
faf4bd47 AK	172	#endif /* CONFIG_ARCH_OMAP3 */
faf4bd47 AK	173
3e7a3185 TL	174	#ifdef CONFIG_ARCH_OMAP4
	175	static void __init omap4_sdp_legacy_init(void)
	176	{
	177	omap_4430sdp_display_init_of();
5f0a2c69 TL	178	legacy_init_wl12xx(WL12XX_REFCLOCK_26,
5f0a2c69 TL	179	WL12XX_TCXOCLOCK_26, 53);
3e7a3185 TL	180	}
	181
	182	static void __init omap4_panda_legacy_init(void)
	183	{
	184	omap4_panda_display_init_of();
	185	legacy_init_ehci_clk("auxclk3_ck");
5f0a2c69	186	legacy_init_wl12xx(WL12XX_REFCLOCK_38, 0, 53);
3e7a3185 TL	187	}
	188	#endif
	189
	190	#ifdef CONFIG_SOC_OMAP5
	191	static void __init omap5_uevm_legacy_init(void)
	192	{
	193	legacy_init_ehci_clk("auxclk1_ck");
	194	}
	195	#endif
	196
30a69ef7 TL	197	static struct pcs_pdata pcs_pdata;
	198
	199	void omap_pcs_legacy_init(int irq, void (*rearm)(void))
	200	{
	201	pcs_pdata.irq = irq;
	202	pcs_pdata.rearm = rearm;
	203	}
	204
dad12d11 TL	205	/*
	206	* GPIOs for TWL are initialized by the I2C bus and need custom
	207	* handing until DSS has device tree bindings.
	208	*/
	209	void omap_auxdata_legacy_init(struct device *dev)
	210	{
	211	if (dev->platform_data)
	212	return;
	213
	214	if (strcmp("twl4030-gpio", dev_name(dev)))
	215	return;
	216
	217	dev->platform_data = &twl_gpio_auxdata;
	218	}
	219
036582f7 TL	220	/*
	221	* Few boards still need auxdata populated before we populate
	222	* the dev entries in of_platform_populate().
	223	*/
	224	static struct pdata_init auxdata_quirks[] __initdata = {
fa590c92 TL	225	#ifdef CONFIG_SOC_OMAP2420
	226	{ "nokia,n800", omap2420_n8x0_legacy_init, },
	227	{ "nokia,n810", omap2420_n8x0_legacy_init, },
	228	{ "nokia,n810-wimax", omap2420_n8x0_legacy_init, },
0f0cfc69 TL	229	#endif
	230	#ifdef CONFIG_ARCH_OMAP3
	231	{ "compulab,omap3-sbc-t3730", omap3_sbc_t3730_twl_init, },
fa590c92	232	#endif
036582f7 TL	233	{ /* sentinel */ },
	234	};
	235
8651bd8c	236	struct of_dev_auxdata omap_auxdata_lookup[] __initdata = {
036582f7 TL	237	#ifdef CONFIG_MACH_NOKIA_N8X0
	238	OF_DEV_AUXDATA("ti,omap2420-mmc", 0x4809c000, "mmci-omap.0", NULL),
	239	#endif
30a69ef7 TL	240	#ifdef CONFIG_ARCH_OMAP3
	241	OF_DEV_AUXDATA("ti,omap3-padconf", 0x48002030, "48002030.pinmux", &pcs_pdata),
	242	OF_DEV_AUXDATA("ti,omap3-padconf", 0x48002a00, "48002a00.pinmux", &pcs_pdata),
71900314 TL	243	/* Only on am3517 */
	244	OF_DEV_AUXDATA("ti,davinci_mdio", 0x5c030000, "davinci_mdio.0", NULL),
	245	OF_DEV_AUXDATA("ti,am3517-emac", 0x5c000000, "davinci_emac.0",
	246	&am35xx_emac_pdata),
30a69ef7 TL	247	#endif
	248	#ifdef CONFIG_ARCH_OMAP4
	249	OF_DEV_AUXDATA("ti,omap4-padconf", 0x4a100040, "4a100040.pinmux", &pcs_pdata),
	250	OF_DEV_AUXDATA("ti,omap4-padconf", 0x4a31e040, "4a31e040.pinmux", &pcs_pdata),
	251	#endif
8651bd8c TL	252	{ /* sentinel */ },
	253	};
	254
036582f7 TL	255	/*
	256	* Few boards still need to initialize some legacy devices with
	257	* platform data until the drivers support device tree.
	258	*/
6a08e1e6	259	static struct pdata_init pdata_quirks[] __initdata = {
faf4bd47	260	#ifdef CONFIG_ARCH_OMAP3
0f0cfc69	261	{ "compulab,omap3-sbc-t3730", omap3_sbc_t3730_legacy_init, },
edd5eb4e	262	{ "nokia,omap3-n900", hsmmc2_internal_input_clk, },
faf4bd47 AK	263	{ "nokia,omap3-n9", hsmmc2_internal_input_clk, },
faf4bd47 AK	264	{ "nokia,omap3-n950", hsmmc2_internal_input_clk, },
15c9887e	265	{ "isee,omap3-igep0020", omap3_igep0020_legacy_init, },
79b39f79 TL	266	{ "ti,omap3-evm-37xx", omap3_evm_legacy_init, },
79b39f79 TL	267	{ "ti,omap3-zoom3", omap3_zoom_legacy_init, },
71900314	268	{ "ti,am3517-evm", am3517_evm_legacy_init, },
faf4bd47	269	#endif
3e7a3185 TL	270	#ifdef CONFIG_ARCH_OMAP4
	271	{ "ti,omap4-sdp", omap4_sdp_legacy_init, },
	272	{ "ti,omap4-panda", omap4_panda_legacy_init, },
	273	#endif
	274	#ifdef CONFIG_SOC_OMAP5
	275	{ "ti,omap5-uevm", omap5_uevm_legacy_init, },
	276	#endif
6a08e1e6 TL	277	{ /* sentinel */ },
	278	};
	279
036582f7	280	static void pdata_quirks_check(struct pdata_init *quirks)
6a08e1e6	281	{
6a08e1e6 TL	282	while (quirks->compatible) {
	283	if (of_machine_is_compatible(quirks->compatible)) {
	284	if (quirks->fn)
	285	quirks->fn();
	286	break;
	287	}
	288	quirks++;
	289	}
	290	}
036582f7 TL	291
	292	void __init pdata_quirks_init(struct of_device_id *omap_dt_match_table)
	293	{
	294	omap_sdrc_init(NULL, NULL);
	295	pdata_quirks_check(auxdata_quirks);
	296	of_platform_populate(NULL, omap_dt_match_table,
	297	omap_auxdata_lookup, NULL);
	298	pdata_quirks_check(pdata_quirks);
	299	}