1 // SPDX-License-Identifier: GPL-2.0+
47 	return (1U << (31 - (gpio)));  in gpio_mask()
52 	return in_be32(&base->gpdat) & mask;  in mpc8xxx_gpio_get_val()
57 	return in_be32(&base->gpdir) & mask;  in mpc8xxx_gpio_get_dir()
60 static inline void mpc8xxx_gpio_set_in(struct ccsr_gpio *base, u32 gpios)  in mpc8xxx_gpio_set_in()  argument
62 	clrbits_be32(&base->gpdat, gpios);  in mpc8xxx_gpio_set_in()
63 	/* GPDIR register 0 -> input */  in mpc8xxx_gpio_set_in()
64 	clrbits_be32(&base->gpdir, gpios);  in mpc8xxx_gpio_set_in()
67 static inline void mpc8xxx_gpio_set_low(struct ccsr_gpio *base, u32 gpios)  in mpc8xxx_gpio_set_low()  argument
69 	clrbits_be32(&base->gpdat, gpios);  in mpc8xxx_gpio_set_low()
70 	/* GPDIR register 1 -> output */  in mpc8xxx_gpio_set_low()
71 	setbits_be32(&base->gpdir, gpios);  in mpc8xxx_gpio_set_low()
74 static inline void mpc8xxx_gpio_set_high(struct ccsr_gpio *base, u32 gpios)  in mpc8xxx_gpio_set_high()  argument
76 	setbits_be32(&base->gpdat, gpios);  in mpc8xxx_gpio_set_high()
77 	/* GPDIR register 1 -> output */  in mpc8xxx_gpio_set_high()
78 	setbits_be32(&base->gpdir, gpios);  in mpc8xxx_gpio_set_high()
81 static inline int mpc8xxx_gpio_open_drain_val(struct ccsr_gpio *base, u32 mask)  in mpc8xxx_gpio_open_drain_val()
83 	return in_be32(&base->gpodr) & mask;  in mpc8xxx_gpio_open_drain_val()
87 					      gpios)  in mpc8xxx_gpio_open_drain_on()  argument
89 	/* GPODR register 1 -> open drain on */  in mpc8xxx_gpio_open_drain_on()
90 	setbits_be32(&base->gpodr, gpios);  in mpc8xxx_gpio_open_drain_on()
94 					       u32 gpios)  in mpc8xxx_gpio_open_drain_off()  argument
96 	/* GPODR register 0 -> open drain off (actively driven) */  in mpc8xxx_gpio_open_drain_off()
97 	clrbits_be32(&base->gpodr, gpios);  in mpc8xxx_gpio_open_drain_off()
100 static int mpc8xxx_gpio_direction_input(struct udevice *dev, uint gpio)  in mpc8xxx_gpio_direction_input()
104 	mpc8xxx_gpio_set_in(data->base, gpio_mask(gpio));  in mpc8xxx_gpio_direction_input()
108 static int mpc8xxx_gpio_set_value(struct udevice *dev, uint gpio, int value)  in mpc8xxx_gpio_set_value()
113 		data->dat_shadow |= gpio_mask(gpio);  in mpc8xxx_gpio_set_value()
114 		mpc8xxx_gpio_set_high(data->base, gpio_mask(gpio));  in mpc8xxx_gpio_set_value()
116 		data->dat_shadow &= ~gpio_mask(gpio);  in mpc8xxx_gpio_set_value()
117 		mpc8xxx_gpio_set_low(data->base, gpio_mask(gpio));  in mpc8xxx_gpio_set_value()
122 static int mpc8xxx_gpio_direction_output(struct udevice *dev, uint gpio,  in mpc8xxx_gpio_direction_output()
123 					 int value)  in mpc8xxx_gpio_direction_output()
128 	if (data->type == MPC5121_GPIO_TYPE && gpio >= 28)  in mpc8xxx_gpio_direction_output()
129 		return -EINVAL;  in mpc8xxx_gpio_direction_output()
134 static int mpc8xxx_gpio_get_value(struct udevice *dev, uint gpio)  in mpc8xxx_gpio_get_value()
138 	if (!!mpc8xxx_gpio_get_dir(data->base, gpio_mask(gpio))) {  in mpc8xxx_gpio_get_value()
139 		/* Output -> use shadowed value */  in mpc8xxx_gpio_get_value()
140 		return !!(data->dat_shadow & gpio_mask(gpio));  in mpc8xxx_gpio_get_value()
143 	/* Input -> read value from GPDAT register */  in mpc8xxx_gpio_get_value()
144 	return !!mpc8xxx_gpio_get_val(data->base, gpio_mask(gpio));  in mpc8xxx_gpio_get_value()
147 static int mpc8xxx_gpio_get_open_drain(struct udevice *dev, uint gpio)  in mpc8xxx_gpio_get_open_drain()
151 	return !!mpc8xxx_gpio_open_drain_val(data->base, gpio_mask(gpio));  in mpc8xxx_gpio_get_open_drain()
154 static int mpc8xxx_gpio_set_open_drain(struct udevice *dev, uint gpio,  in mpc8xxx_gpio_set_open_drain()
155 				       int value)  in mpc8xxx_gpio_set_open_drain()
160 		mpc8xxx_gpio_open_drain_on(data->base, gpio_mask(gpio));  in mpc8xxx_gpio_set_open_drain()
162 		mpc8xxx_gpio_open_drain_off(data->base, gpio_mask(gpio));  in mpc8xxx_gpio_set_open_drain()
167 static int mpc8xxx_gpio_get_function(struct udevice *dev, uint gpio)  in mpc8xxx_gpio_get_function()
170 	int dir;  in mpc8xxx_gpio_get_function()
172 	dir = !!mpc8xxx_gpio_get_dir(data->base, gpio_mask(gpio));  in mpc8xxx_gpio_get_function()
177 static int mpc8xxx_gpio_ofdata_to_platdata(struct udevice *dev)  in mpc8xxx_gpio_ofdata_to_platdata()
186 	plat->addr = addr;  in mpc8xxx_gpio_ofdata_to_platdata()
187 	plat->size = reg[1];  in mpc8xxx_gpio_ofdata_to_platdata()
188 	plat->ngpios = dev_read_u32_default(dev, "ngpios", 32);  in mpc8xxx_gpio_ofdata_to_platdata()
194 static int mpc8xxx_gpio_platdata_to_priv(struct udevice *dev)  in mpc8xxx_gpio_platdata_to_priv()
198 	unsigned long size = plat->size;  in mpc8xxx_gpio_platdata_to_priv()
204 	priv->addr = plat->addr;  in mpc8xxx_gpio_platdata_to_priv()
205 	priv->base = map_sysmem(plat->addr, size);  in mpc8xxx_gpio_platdata_to_priv()
207 	if (!priv->base)  in mpc8xxx_gpio_platdata_to_priv()
208 		return -ENOMEM;  in mpc8xxx_gpio_platdata_to_priv()
210 	priv->gpio_count = plat->ngpios;  in mpc8xxx_gpio_platdata_to_priv()
211 	priv->dat_shadow = 0;  in mpc8xxx_gpio_platdata_to_priv()
213 	priv->type = driver_data;  in mpc8xxx_gpio_platdata_to_priv()
218 static int mpc8xxx_gpio_probe(struct udevice *dev)  in mpc8xxx_gpio_probe()
226 	snprintf(name, sizeof(name), "MPC@%lx_", data->addr);  in mpc8xxx_gpio_probe()
230 		return -ENOMEM;  in mpc8xxx_gpio_probe()
232 	uc_priv->bank_name = str;  in mpc8xxx_gpio_probe()
233 	uc_priv->gpio_count = data->gpio_count;  in mpc8xxx_gpio_probe()
249 	{ .compatible = "fsl,pq3-gpio", .data = MPC8XXX_GPIO_TYPE },
250 	{ .compatible = "fsl,mpc8308-gpio", .data = MPC8XXX_GPIO_TYPE },
251 	{ .compatible = "fsl,mpc8349-gpio", .data = MPC8XXX_GPIO_TYPE },
252 	{ .compatible = "fsl,mpc8572-gpio", .data = MPC8XXX_GPIO_TYPE},
253 	{ .compatible = "fsl,mpc8610-gpio", .data = MPC8XXX_GPIO_TYPE},
254 	{ .compatible = "fsl,mpc5121-gpio", .data = MPC5121_GPIO_TYPE, },
255 	{ .compatible = "fsl,qoriq-gpio", .data = MPC8XXX_GPIO_TYPE },