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Commit 48b6bce3 authored by Antoine Tenart's avatar Antoine Tenart Committed by Linus Walleij
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pinctrl: berlin: add the BG2CD pinctrl driver 



Add the pin-controller driver for the Berlin BG2Q SoC, with definition
of its groups and functions. Pin control registers are part of chip/
system control registers, which will be represented by a single node.
Until a proper driver for the chip/system control is available,
register the corresponding regmap in pinctrl driver probe.

Signed-off-by: default avatarAntoine Tenart <antoine.tenart@free-electrons.com>
Acked-by: default avatarSebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: default avatarLinus Walleij <linus.walleij@linaro.org>
parent b016d1bd

drivers/pinctrl/berlin/Kconfig

+4 −0
Original line number Diff line number Diff line
@@ -9,6 +9,10 @@ config PINCTRL_BERLIN_BG2 
	bool

	select PINCTRL_BERLIN



config PINCTRL_BERLIN_BG2CD

	bool

	select PINCTRL_BERLIN



config PINCTRL_BERLIN_BG2Q

	bool

	select PINCTRL_BERLIN

drivers/pinctrl/berlin/Makefile

+1 −0
Original line number Diff line number Diff line 
obj-$(CONFIG_PINCTRL_BERLIN)		+= berlin.o

obj-$(CONFIG_PINCTRL_BERLIN_BG2)	+= berlin-bg2.o

obj-$(CONFIG_PINCTRL_BERLIN_BG2CD)	+= berlin-bg2cd.o

obj-$(CONFIG_PINCTRL_BERLIN_BG2Q)	+= berlin-bg2q.o

drivers/pinctrl/berlin/berlin-bg2cd.c

0 → 100644
+217 −0
Original line number Diff line number Diff line 
/*

 * Marvell Berlin BG2CD pinctrl driver.

 *

 * Copyright (C) 2014 Marvell Technology Group Ltd.

 *

 * Antoine Ténart <antoine.tenart@free-electrons.com>

 *

 * This file is licensed under the terms of the GNU General Public

 * License version 2. This program is licensed "as is" without any

 * warranty of any kind, whether express or implied.

 */



#include <linux/module.h>

#include <linux/of_device.h>

#include <linux/platform_device.h>

#include <linux/regmap.h>



#include "berlin.h"



static const struct berlin_desc_group berlin2cd_soc_pinctrl_groups[] = {

	/* G */

	BERLIN_PINCTRL_GROUP("G0", 0x00, 0x1, 0x00,

		BERLIN_PINCTRL_FUNCTION(0x0, "jtag"),

		BERLIN_PINCTRL_FUNCTION(0x1, "gpio"),

		BERLIN_PINCTRL_FUNCTION(0x2, "led"),

		BERLIN_PINCTRL_FUNCTION(0x3, "pwm")),

	BERLIN_PINCTRL_GROUP("G1", 0x00, 0x2, 0x01,

		BERLIN_PINCTRL_FUNCTION(0x0, "gpio"),

		BERLIN_PINCTRL_FUNCTION(0x1, "sd0"),

		BERLIN_PINCTRL_FUNCTION(0x6, "usb0_dbg"),

		BERLIN_PINCTRL_FUNCTION(0x7, "usb1_dbg")),

	BERLIN_PINCTRL_GROUP("G2", 0x00, 0x2, 0x02,

		BERLIN_PINCTRL_FUNCTION(0x0, "gpio"),

		BERLIN_PINCTRL_FUNCTION(0x1, "sd0"),

		BERLIN_PINCTRL_FUNCTION(0x2, "fe"),

		BERLIN_PINCTRL_FUNCTION(0x3, "pll"),

		BERLIN_PINCTRL_FUNCTION(0x6, "usb0_dbg"),

		BERLIN_PINCTRL_FUNCTION(0x7, "usb1_dbg")),

	BERLIN_PINCTRL_GROUP("G3", 0x00, 0x2, 0x04,

		BERLIN_PINCTRL_FUNCTION(0x0, "gpio"),

		BERLIN_PINCTRL_FUNCTION(0x1, "sd0"),

		BERLIN_PINCTRL_FUNCTION(0x2, "twsi2"),

		BERLIN_PINCTRL_FUNCTION(0x3, "pll"),

		BERLIN_PINCTRL_FUNCTION(0x4, "fe"),

		BERLIN_PINCTRL_FUNCTION(0x6, "usb0_dbg"),

		BERLIN_PINCTRL_FUNCTION(0x7, "usb1_dbg")),

	BERLIN_PINCTRL_GROUP("G4", 0x00, 0x2, 0x06,

		BERLIN_PINCTRL_FUNCTION(0x0, "gpio"),

		BERLIN_PINCTRL_FUNCTION(0x1, "sd0"),

		BERLIN_PINCTRL_FUNCTION(0x2, "twsi3"),

		BERLIN_PINCTRL_FUNCTION(0x3, "pll"),

		BERLIN_PINCTRL_FUNCTION(0x4, "pwm"),

		BERLIN_PINCTRL_FUNCTION(0x6, "usb0_dbg"),

		BERLIN_PINCTRL_FUNCTION(0x7, "usb1_dbg")),

	BERLIN_PINCTRL_GROUP("G5", 0x00, 0x3, 0x08,

		BERLIN_PINCTRL_FUNCTION(0x0, "gpio"),

		BERLIN_PINCTRL_FUNCTION(0x1, "sd0"),

		BERLIN_PINCTRL_FUNCTION(0x2, "twsi3"),

		BERLIN_PINCTRL_FUNCTION(0x3, "arc"),

		BERLIN_PINCTRL_FUNCTION(0x4, "pwm"),

		BERLIN_PINCTRL_FUNCTION(0x6, "usb0_dbg"),

		BERLIN_PINCTRL_FUNCTION(0x7, "usb1_dbg")),

	BERLIN_PINCTRL_GROUP("G6", 0x00, 0x2, 0x0b,

		BERLIN_PINCTRL_FUNCTION(0x0, "uart0"),	/* RX/TX */

		BERLIN_PINCTRL_FUNCTION(0x1, "gpio")),

	BERLIN_PINCTRL_GROUP("G7", 0x00, 0x3, 0x0d,

		BERLIN_PINCTRL_FUNCTION(0x0, "eddc"),

		BERLIN_PINCTRL_FUNCTION(0x1, "twsi1"),

		BERLIN_PINCTRL_FUNCTION(0x2, "gpio")),

	BERLIN_PINCTRL_GROUP("G8", 0x00, 0x3, 0x10,

		BERLIN_PINCTRL_FUNCTION(0x0, "ss0"),

		BERLIN_PINCTRL_FUNCTION(0x1, "gpio")),

	BERLIN_PINCTRL_GROUP("G9", 0x00, 0x3, 0x13,

		BERLIN_PINCTRL_FUNCTION(0x0, "gpio"),

		BERLIN_PINCTRL_FUNCTION(0x1, "spi1"),

		BERLIN_PINCTRL_FUNCTION(0x2, "twsi0")),

	BERLIN_PINCTRL_GROUP("G10", 0x00, 0x2, 0x16,

		BERLIN_PINCTRL_FUNCTION(0x0, "spi1"),

		BERLIN_PINCTRL_FUNCTION(0x1, "gpio")),

	BERLIN_PINCTRL_GROUP("G11", 0x00, 0x2, 0x18,

		BERLIN_PINCTRL_FUNCTION(0x0, "spi1"),

		BERLIN_PINCTRL_FUNCTION(0x1, "gpio")),

	BERLIN_PINCTRL_GROUP("G12", 0x00, 0x3, 0x1a,

		BERLIN_PINCTRL_FUNCTION(0x0, "usb1"),

		BERLIN_PINCTRL_FUNCTION(0x1, "gpio")),

	BERLIN_PINCTRL_GROUP("G13", 0x04, 0x3, 0x00,

		BERLIN_PINCTRL_FUNCTION(0x0, "nand"),

		BERLIN_PINCTRL_FUNCTION(0x1, "usb0_dbg"),

		BERLIN_PINCTRL_FUNCTION(0x2, "usb1_dbg")),

	BERLIN_PINCTRL_GROUP("G14", 0x04, 0x1, 0x03,

		BERLIN_PINCTRL_FUNCTION(0x0, "nand"),

		BERLIN_PINCTRL_FUNCTION(0x1, "gpio")),

	BERLIN_PINCTRL_GROUP("G15", 0x04, 0x2, 0x04,

		BERLIN_PINCTRL_FUNCTION(0x0, "jtag"),

		BERLIN_PINCTRL_FUNCTION(0x1, "gpio")),

	BERLIN_PINCTRL_GROUP("G16", 0x04, 0x3, 0x06,

		BERLIN_PINCTRL_FUNCTION_UNKNOWN),

	BERLIN_PINCTRL_GROUP("G17", 0x04, 0x3, 0x09,

		BERLIN_PINCTRL_FUNCTION_UNKNOWN),

	BERLIN_PINCTRL_GROUP("G18", 0x04, 0x1, 0x0c,

		BERLIN_PINCTRL_FUNCTION_UNKNOWN),

	BERLIN_PINCTRL_GROUP("G19", 0x04, 0x1, 0x0d,

		BERLIN_PINCTRL_FUNCTION_UNKNOWN),

	BERLIN_PINCTRL_GROUP("G20", 0x04, 0x1, 0x0e,

		BERLIN_PINCTRL_FUNCTION_UNKNOWN),

	BERLIN_PINCTRL_GROUP("G21", 0x04, 0x3, 0x0f,

		BERLIN_PINCTRL_FUNCTION_UNKNOWN),

	BERLIN_PINCTRL_GROUP("G22", 0x04, 0x3, 0x12,

		BERLIN_PINCTRL_FUNCTION_UNKNOWN),

	BERLIN_PINCTRL_GROUP("G23", 0x04, 0x3, 0x15,

		BERLIN_PINCTRL_FUNCTION_UNKNOWN),

	BERLIN_PINCTRL_GROUP("G24", 0x04, 0x2, 0x18,

		BERLIN_PINCTRL_FUNCTION_UNKNOWN),

	BERLIN_PINCTRL_GROUP("G25", 0x04, 0x2, 0x1a,

		BERLIN_PINCTRL_FUNCTION_UNKNOWN),

	BERLIN_PINCTRL_GROUP("G26", 0x04, 0x1, 0x1c,

		BERLIN_PINCTRL_FUNCTION_UNKNOWN),

	BERLIN_PINCTRL_GROUP("G27", 0x04, 0x1, 0x1d,

		BERLIN_PINCTRL_FUNCTION_UNKNOWN),

	BERLIN_PINCTRL_GROUP("G28", 0x04, 0x2, 0x1e,

		BERLIN_PINCTRL_FUNCTION_UNKNOWN),

};



static const struct berlin_desc_group berlin2cd_sysmgr_pinctrl_groups[] = {

	/* GSM */

	BERLIN_PINCTRL_GROUP("GSM0", 0x40, 0x2, 0x00,

		BERLIN_PINCTRL_FUNCTION_UNKNOWN),

	BERLIN_PINCTRL_GROUP("GSM1", 0x40, 0x2, 0x02,

		BERLIN_PINCTRL_FUNCTION_UNKNOWN),

	BERLIN_PINCTRL_GROUP("GSM2", 0x40, 0x2, 0x04,

		BERLIN_PINCTRL_FUNCTION_UNKNOWN),

	BERLIN_PINCTRL_GROUP("GSM3", 0x40, 0x2, 0x06,

		BERLIN_PINCTRL_FUNCTION_UNKNOWN),

	BERLIN_PINCTRL_GROUP("GSM4", 0x40, 0x2, 0x08,

		BERLIN_PINCTRL_FUNCTION_UNKNOWN),

	BERLIN_PINCTRL_GROUP("GSM5", 0x40, 0x2, 0x0a,

		BERLIN_PINCTRL_FUNCTION_UNKNOWN),

	BERLIN_PINCTRL_GROUP("GSM6", 0x40, 0x2, 0x0c,

		BERLIN_PINCTRL_FUNCTION_UNKNOWN),

	BERLIN_PINCTRL_GROUP("GSM7", 0x40, 0x1, 0x0e,

		BERLIN_PINCTRL_FUNCTION_UNKNOWN),

	BERLIN_PINCTRL_GROUP("GSM8", 0x40, 0x1, 0x0f,

		BERLIN_PINCTRL_FUNCTION_UNKNOWN),

	BERLIN_PINCTRL_GROUP("GSM9", 0x40, 0x1, 0x10,

		BERLIN_PINCTRL_FUNCTION_UNKNOWN),

	BERLIN_PINCTRL_GROUP("GSM10", 0x40, 0x1, 0x11,

		BERLIN_PINCTRL_FUNCTION_UNKNOWN),

	BERLIN_PINCTRL_GROUP("GSM11", 0x40, 0x1, 0x12,

		BERLIN_PINCTRL_FUNCTION_UNKNOWN),

};



static const struct berlin_pinctrl_desc berlin2cd_soc_pinctrl_data = {

	.groups = berlin2cd_soc_pinctrl_groups,

	.ngroups = ARRAY_SIZE(berlin2cd_soc_pinctrl_groups),

};



static const struct berlin_pinctrl_desc berlin2cd_sysmgr_pinctrl_data = {

	.groups = berlin2cd_sysmgr_pinctrl_groups,

	.ngroups = ARRAY_SIZE(berlin2cd_sysmgr_pinctrl_groups),

};



static const struct of_device_id berlin2cd_pinctrl_match[] = {

	{

		.compatible = "marvell,berlin2cd-chip-ctrl",

		.data = &berlin2cd_soc_pinctrl_data

	},

	{

		.compatible = "marvell,berlin2cd-system-ctrl",

		.data = &berlin2cd_sysmgr_pinctrl_data

	},

	{}

};

MODULE_DEVICE_TABLE(of, berlin2cd_pinctrl_match);



static int berlin2cd_pinctrl_probe(struct platform_device *pdev)

{

	const struct of_device_id *match =

		of_match_device(berlin2cd_pinctrl_match, &pdev->dev);

	struct regmap_config *rmconfig;

	struct regmap *regmap;

	struct resource *res;

	void __iomem *base;



	rmconfig = devm_kzalloc(&pdev->dev, sizeof(*rmconfig), GFP_KERNEL);

	if (!rmconfig)

		return -ENOMEM;



	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);

	base = devm_request_and_ioremap(&pdev->dev, res);

	if (!base)

		return -EADDRNOTAVAIL;



	rmconfig->reg_bits = 32,

	rmconfig->val_bits = 32,

	rmconfig->reg_stride = 4,

	rmconfig->max_register = resource_size(res);



	regmap = devm_regmap_init_mmio(&pdev->dev, base, rmconfig);

	if (IS_ERR(regmap))

		return PTR_ERR(regmap);



	return berlin_pinctrl_probe(pdev, match->data);

}



static struct platform_driver berlin2cd_pinctrl_driver = {

	.probe	= berlin2cd_pinctrl_probe,

	.driver	= {

		.name = "berlin-bg2cd-pinctrl",

		.owner = THIS_MODULE,

		.of_match_table = berlin2cd_pinctrl_match,

	},

};

module_platform_driver(berlin2cd_pinctrl_driver);



MODULE_AUTHOR("Antoine Ténart <antoine.tenart@free-electrons.com>");

MODULE_DESCRIPTION("Marvell Berlin BG2CD pinctrl driver");

MODULE_LICENSE("GPL");