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linux-sg2042/drivers/pinctrl/berlin/berlin-bg2cd.c

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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: Antoine Tenart <antoine.tenart@free-electrons.com> Acked-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-05-20 01:36:32 +08:00
/*
* 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");