Hi Daniel,
The 01/07/2019 20:38, Daniel Schwierzeck wrote:
>
>
> Am 07.01.19 um 14:02 schrieb Horatiu Vultur:
> > The Jaguar2 SOC family has 63 gpio pins therefore I extended mscc-common
> > to support new numbe of pins.
> >
> > Signed-off-by: Horatiu Vultur <horatiu.vul...@microchip.com>
> > ---
> > MAINTAINERS | 1 +
> > drivers/pinctrl/mscc/Kconfig | 9 +
> > drivers/pinctrl/mscc/Makefile | 1 +
> > drivers/pinctrl/mscc/mscc-common.c | 97 ++++++++---
> > drivers/pinctrl/mscc/mscc-common.h | 5 +
> > drivers/pinctrl/mscc/pinctrl-jr2.c | 342
> > +++++++++++++++++++++++++++++++++++++
> > 6 files changed, 433 insertions(+), 22 deletions(-)
> > create mode 100644 drivers/pinctrl/mscc/pinctrl-jr2.c
> >
> > diff --git a/MAINTAINERS b/MAINTAINERS
> > index 494962e..495d3e5 100644
> > --- a/MAINTAINERS
> > +++ b/MAINTAINERS
> > @@ -525,6 +525,7 @@ F: board/mscc/
> > F: configs/mscc*
> > F: drivers/gpio/mscc_sgpio.c
> > F: include/configs/vcoreiii.h
> > +F: drivers/pinctrl/mscc/
> >
> > MIPS JZ4780
> > M: Ezequiel Garcia <ezequ...@collabora.com>
> > diff --git a/drivers/pinctrl/mscc/Kconfig b/drivers/pinctrl/mscc/Kconfig
> > index cfc6c06..d07ea1b 100644
> > --- a/drivers/pinctrl/mscc/Kconfig
> > +++ b/drivers/pinctrl/mscc/Kconfig
> > @@ -20,3 +20,12 @@ config PINCTRL_MSCC_LUTON
> > help
> > Support pin multiplexing and pin configuration control on
> > Microsemi luton SoCs.
> > +
> > +config PINCTRL_MSCC_JR2
> > + depends on SOC_JR2 && PINCTRL_FULL && OF_CONTROL
> > + select PINCTRL_MSCC
> > + default y
> > + bool "Microsemi jr2 family pin control driver"
> > + help
> > + Support pin multiplexing and pin configuration control on
> > + Microsemi jr2 SoCs.
> > diff --git a/drivers/pinctrl/mscc/Makefile b/drivers/pinctrl/mscc/Makefile
> > index 6910671..8038d54 100644
> > --- a/drivers/pinctrl/mscc/Makefile
> > +++ b/drivers/pinctrl/mscc/Makefile
> > @@ -3,3 +3,4 @@
> > obj-y += mscc-common.o
> > obj-$(CONFIG_PINCTRL_MSCC_OCELOT) += pinctrl-ocelot.o
> > obj-$(CONFIG_PINCTRL_MSCC_LUTON) += pinctrl-luton.o
> > +obj-$(CONFIG_PINCTRL_MSCC_JR2) += pinctrl-jr2.o
> > diff --git a/drivers/pinctrl/mscc/mscc-common.c
> > b/drivers/pinctrl/mscc/mscc-common.c
> > index d74b8a6..7743565 100644
> > --- a/drivers/pinctrl/mscc/mscc-common.c
> > +++ b/drivers/pinctrl/mscc/mscc-common.c
> > @@ -22,6 +22,18 @@
> > #include <linux/io.h>
> > #include "mscc-common.h"
> >
> > +#if defined(CONFIG_SOC_JR2)
> > +#define MSCC_GPIO_OUT_SET 0x00
> > +#define MSCC_GPIO_OUT_CLR 0x08
> > +#define MSCC_GPIO_OUT 0x10
> > +#define MSCC_GPIO_IN 0x18
> > +#define MSCC_GPIO_OE 0x20
> > +#define MSCC_GPIO_INTR 0x28
> > +#define MSCC_GPIO_INTR_ENA 0x30
> > +#define MSCC_GPIO_INTR_IDENT 0x38
> > +#define MSCC_GPIO_ALT0 0x40
> > +#define MSCC_GPIO_ALT1 0x48
> > +#else
>
> you should also move this to pinctrl-jr2.c
If I will move also this in pinctrl-jr2 then I will need to mark many
functions as weak and implement them in pinctrl-jr2. And thier
implementation will be the same. Another reason why not to move them in
pinctr-jr2 is that soon we want to add support for another target which
has same features as JR2.
Maybe another solution is to extend the function mscc_pinctrl_probe to
receive also an array with the offset of MSCC_GPIO_*. And then each
specific pinctrl will need to pass this array, similar with mscc_pins.
In this way the mscc-common will not contain any specific code to any of
the targets.
>
> > #define MSCC_GPIO_OUT_SET 0x0
> > #define MSCC_GPIO_OUT_CLR 0x4
> > #define MSCC_GPIO_OUT 0x8
> > @@ -32,6 +44,39 @@
> > #define MSCC_GPIO_INTR_IDENT 0x1c
> > #define MSCC_GPIO_ALT0 0x20
> > #define MSCC_GPIO_ALT1 0x24
> > +#endif
> > +
> > +static void mscc_writel(unsigned int offset, void *addr)
> > +{
> > + if (offset < 32)
> > + writel(BIT(offset), addr);
> > + else
> > + writel(BIT(offset % 32), addr + 4);
> > +}
> > +
> > +static unsigned int mscc_readl(unsigned int offset, void *addr)
> > +{
> > + if (offset < 32)
> > + return readl(addr);
> > + else
> > + return readl(addr + 4);
> > +}
> > +
> > +void mscc_setbits(unsigned int offset, void *addr)
> > +{
> > + if (offset < 32)
> > + writel(readl(addr) | BIT(offset), addr);
> > + else
> > + writel(readl(addr + 4) | BIT(offset % 32), addr + 4);
> > +}
> > +
> > +void mscc_clrbits(unsigned int offset, void *addr)
> > +{
> > + if (offset < 32)
> > + writel(readl(addr) & ~BIT(offset), addr);
> > + else
> > + writel(readl(addr + 4) & ~BIT(offset % 32), addr + 4);
> > +}
> >
> > static int mscc_get_functions_count(struct udevice *dev)
> > {
> > @@ -48,8 +93,8 @@ static const char *mscc_get_function_name(struct udevice
> > *dev,
> > return info->function_names[function];
> > }
> >
> > -static int mscc_pin_function_idx(unsigned int pin, unsigned int function,
> > - const struct mscc_pin_data *mscc_pins)
> > +int mscc_pin_function_idx(unsigned int pin, unsigned int function,
> > + const struct mscc_pin_data *mscc_pins)
> > {
> > struct mscc_pin_caps *p = mscc_pins[pin].drv_data;
> > int i;
> > @@ -62,7 +107,7 @@ static int mscc_pin_function_idx(unsigned int pin,
> > unsigned int function,
> > return -1;
> > }
> >
> > -static int mscc_pinmux_set_mux(struct udevice *dev,
> > +__weak int mscc_pinmux_set_mux(struct udevice *dev,
> > unsigned int pin_selector, unsigned int selector)
> > {
> > struct mscc_pinctrl *info = dev_get_priv(dev);
> > @@ -79,15 +124,16 @@ static int mscc_pinmux_set_mux(struct udevice *dev,
> > * This is racy because both registers can't be updated at the same time
> > * but it doesn't matter much for now.
> > */
> > +
> > if (f & BIT(0))
> > - setbits_le32(info->regs + MSCC_GPIO_ALT0, BIT(pin->pin));
> > + mscc_setbits(pin->pin, info->regs + MSCC_GPIO_ALT0);
> > else
> > - clrbits_le32(info->regs + MSCC_GPIO_ALT0, BIT(pin->pin));
> > + mscc_clrbits(pin->pin, info->regs + MSCC_GPIO_ALT0);
> >
> > if (f & BIT(1))
> > - setbits_le32(info->regs + MSCC_GPIO_ALT1, BIT(pin->pin - 1));
> > + mscc_setbits(pin->pin, info->regs + MSCC_GPIO_ALT1 + 4);
> > else
> > - clrbits_le32(info->regs + MSCC_GPIO_ALT1, BIT(pin->pin - 1));
> > + mscc_clrbits(pin->pin, info->regs + MSCC_GPIO_ALT1 + 4);
> >
> > return 0;
> > }
> > @@ -120,8 +166,8 @@ static int mscc_create_group_func_map(struct udevice
> > *dev,
> > }
> >
> > info->func[f].ngroups = npins;
> > - info->func[f].groups = devm_kzalloc(dev, npins *
> > - sizeof(char *), GFP_KERNEL);
> > + info->func[f].groups = devm_kzalloc(dev, npins * sizeof(char *),
> > + GFP_KERNEL);
> > if (!info->func[f].groups)
> > return -ENOMEM;
> >
> > @@ -132,7 +178,8 @@ static int mscc_create_group_func_map(struct udevice
> > *dev,
> > return 0;
> > }
> >
> > -static int mscc_pinctrl_register(struct udevice *dev, struct mscc_pinctrl
> > *info)
> > +static int mscc_pinctrl_register(struct udevice *dev,
> > + struct mscc_pinctrl *info)
> > {
> > int ret;
> >
> > @@ -150,38 +197,44 @@ static int mscc_gpio_get(struct udevice *dev,
> > unsigned int offset)
> > struct mscc_pinctrl *info = dev_get_priv(dev->parent);
> > unsigned int val;
> >
> > - val = readl(info->regs + MSCC_GPIO_IN);
> > + if (mscc_readl(offset, info->regs + MSCC_GPIO_OE) & BIT(offset % 32))
> > + val = mscc_readl(offset, info->regs + MSCC_GPIO_OUT);
> > + else
> > + val = mscc_readl(offset, info->regs + MSCC_GPIO_IN);
> >
> > - return !!(val & BIT(offset));
> > + return !!(val & BIT(offset % 32));
> > }
> >
> > -static int mscc_gpio_set(struct udevice *dev, unsigned int offset, int
> > value)
> > +static int mscc_gpio_set(struct udevice *dev, unsigned int offset,
> > + int value)
> > {
> > struct mscc_pinctrl *info = dev_get_priv(dev->parent);
> >
> > if (value)
> > - writel(BIT(offset), info->regs + MSCC_GPIO_OUT_SET);
> > + mscc_writel(offset, info->regs + MSCC_GPIO_OUT_SET);
> > else
> > - writel(BIT(offset), info->regs + MSCC_GPIO_OUT_CLR);
> > + mscc_writel(offset, info->regs + MSCC_GPIO_OUT_CLR);
> >
> > return 0;
> > }
> >
> > -static int mscc_gpio_get_direction(struct udevice *dev, unsigned int
> > offset)
> > +static int mscc_gpio_get_direction(struct udevice *dev,
> > + unsigned int offset)
> > {
> > struct mscc_pinctrl *info = dev_get_priv(dev->parent);
> > unsigned int val;
> >
> > - val = readl(info->regs + MSCC_GPIO_OE);
> > + val = mscc_readl(offset, info->regs + MSCC_GPIO_OE);
> >
> > - return (val & BIT(offset)) ? GPIOF_OUTPUT : GPIOF_INPUT;
> > + return (val & BIT(offset % 32)) ? GPIOF_OUTPUT : GPIOF_INPUT;
> > }
> >
> > -static int mscc_gpio_direction_input(struct udevice *dev, unsigned int
> > offset)
> > +static int mscc_gpio_direction_input(struct udevice *dev,
> > + unsigned int offset)
> > {
> > struct mscc_pinctrl *info = dev_get_priv(dev->parent);
> >
> > - clrbits_le32(info->regs + MSCC_GPIO_OE, BIT(offset));
> > + mscc_clrbits(offset, info->regs + MSCC_GPIO_OE);
> >
> > return 0;
> > }
> > @@ -191,7 +244,7 @@ static int mscc_gpio_direction_output(struct udevice
> > *dev,
> > {
> > struct mscc_pinctrl *info = dev_get_priv(dev->parent);
> >
> > - setbits_le32(info->regs + MSCC_GPIO_OE, BIT(offset));
> > + mscc_setbits(offset, info->regs + MSCC_GPIO_OE);
> >
> > return mscc_gpio_set(dev, offset, value);
> > }
> > @@ -215,7 +268,7 @@ const struct pinctrl_ops mscc_pinctrl_ops = {
> >
> > int mscc_pinctrl_probe(struct udevice *dev, int num_func,
> > const struct mscc_pin_data *mscc_pins, int num_pins,
> > - char *const *function_names)
> > + char * const*function_names)
>
> missing space: char * const *function_names
>
> > {
> > struct mscc_pinctrl *priv = dev_get_priv(dev);
> > int ret;
> > diff --git a/drivers/pinctrl/mscc/mscc-common.h
> > b/drivers/pinctrl/mscc/mscc-common.h
> > index b0001db..1b986a9 100644
> > --- a/drivers/pinctrl/mscc/mscc-common.h
> > +++ b/drivers/pinctrl/mscc/mscc-common.h
> > @@ -43,6 +43,11 @@ struct mscc_pinctrl {
> > char * const *function_names;
> > };
> >
> > +void mscc_setbits(unsigned int offset, void *addr);
> > +void mscc_clrbits(unsigned int offset, void *addr);
> > +int mscc_pin_function_idx(unsigned int pin, unsigned int function,
> > + const struct mscc_pin_data *mscc_pins);
> > +
> > int mscc_pinctrl_probe(struct udevice *dev, int num_func,
> > const struct mscc_pin_data *mscc_pins, int num_pins,
> > char * const *function_names);
> > diff --git a/drivers/pinctrl/mscc/pinctrl-jr2.c
> > b/drivers/pinctrl/mscc/pinctrl-jr2.c
> > new file mode 100644
> > index 0000000..5c28693
> > --- /dev/null
> > +++ b/drivers/pinctrl/mscc/pinctrl-jr2.c
> > @@ -0,0 +1,342 @@
> > +// SPDX-License-Identifier: (GPL-2.0 OR MIT)
> > +/*
> > + * Microsemi SoCs pinctrl driver
> > + *
> > + * Author: <horatiu.vul...@microchip.com>
> > + * License: Dual MIT/GPL
>
> license is redundant due to SPDX
>
> > + * Copyright (c) 2018 Microsemi Corporation
> > + */
> > +
> > +#include <common.h>
> > +#include <config.h>
> > +#include <dm.h>
> > +#include <dm/device-internal.h>
> > +#include <dm/lists.h>
> > +#include <dm/pinctrl.h>
> > +#include <dm/root.h>
> > +#include <errno.h>
> > +#include <fdtdec.h>
> > +#include <linux/io.h>
> > +#include <asm/gpio.h>
> > +#include <asm/system.h>
> > +#include "mscc-common.h"
> > +
> > +#define MSCC_GPIO_ALT0 0x40
> > +#define MSCC_GPIO_ALT1 0x48
> > +
> > +enum {
> > + FUNC_NONE,
> > + FUNC_GPIO,
> > + FUNC_IRQ0_IN,
> > + FUNC_IRQ0_OUT,
> > + FUNC_IRQ1_IN,
> > + FUNC_IRQ1_OUT,
> > + FUNC_MIIM1,
> > + FUNC_MIIM2,
> > + FUNC_PCI_WAKE,
> > + FUNC_PTP0,
> > + FUNC_PTP1,
> > + FUNC_PTP2,
> > + FUNC_PTP3,
> > + FUNC_PWM,
> > + FUNC_RECO_CLK0,
> > + FUNC_RECO_CLK1,
> > + FUNC_SFP0,
> > + FUNC_SFP1,
> > + FUNC_SFP2,
> > + FUNC_SFP3,
> > + FUNC_SFP4,
> > + FUNC_SFP5,
> > + FUNC_SFP6,
> > + FUNC_SFP7,
> > + FUNC_SFP8,
> > + FUNC_SFP9,
> > + FUNC_SFP10,
> > + FUNC_SFP11,
> > + FUNC_SFP12,
> > + FUNC_SFP13,
> > + FUNC_SFP14,
> > + FUNC_SFP15,
> > + FUNC_SIO,
> > + FUNC_SIO1,
> > + FUNC_SIO2,
> > + FUNC_SI,
> > + FUNC_TACHO,
> > + FUNC_TWI,
> > + FUNC_TWI2,
> > + FUNC_TWI_SCL_M,
> > + FUNC_UART,
> > + FUNC_UART2,
> > + FUNC_MAX
> > +};
> > +
> > +char *jr2_function_names[] = {
> > + [FUNC_NONE] = "none",
> > + [FUNC_GPIO] = "gpio",
> > + [FUNC_IRQ0_IN] = "irq0_in",
> > + [FUNC_IRQ0_OUT] = "irq0_out",
> > + [FUNC_IRQ1_IN] = "irq1_in",
> > + [FUNC_IRQ1_OUT] = "irq1_out",
> > + [FUNC_MIIM1] = "miim1",
> > + [FUNC_MIIM2] = "miim2",
> > + [FUNC_PCI_WAKE] = "pci_wake",
> > + [FUNC_PTP0] = "ptp0",
> > + [FUNC_PTP1] = "ptp1",
> > + [FUNC_PTP2] = "ptp2",
> > + [FUNC_PTP3] = "ptp3",
> > + [FUNC_PWM] = "pwm",
> > + [FUNC_RECO_CLK0] = "reco_clk0",
> > + [FUNC_RECO_CLK1] = "reco_clk1",
> > + [FUNC_SFP0] = "sfp0",
> > + [FUNC_SFP1] = "sfp1",
> > + [FUNC_SFP2] = "sfp2",
> > + [FUNC_SFP3] = "sfp3",
> > + [FUNC_SFP4] = "sfp4",
> > + [FUNC_SFP5] = "sfp5",
> > + [FUNC_SFP6] = "sfp6",
> > + [FUNC_SFP7] = "sfp7",
> > + [FUNC_SFP8] = "sfp8",
> > + [FUNC_SFP9] = "sfp9",
> > + [FUNC_SFP10] = "sfp10",
> > + [FUNC_SFP11] = "sfp11",
> > + [FUNC_SFP12] = "sfp12",
> > + [FUNC_SFP13] = "sfp13",
> > + [FUNC_SFP14] = "sfp14",
> > + [FUNC_SFP15] = "sfp15",
> > + [FUNC_SIO] = "sio",
> > + [FUNC_SIO1] = "sio1",
> > + [FUNC_SIO2] = "sio2",
> > + [FUNC_SI] = "si",
> > + [FUNC_TACHO] = "tacho",
> > + [FUNC_TWI] = "twi",
> > + [FUNC_TWI2] = "twi2",
> > + [FUNC_TWI_SCL_M] = "twi_scl_m",
> > + [FUNC_UART] = "uart",
> > + [FUNC_UART2] = "uart2",
> > +};
> > +
> > +MSCC_P(0, SIO, NONE, NONE);
> > +MSCC_P(1, SIO, NONE, NONE);
> > +MSCC_P(2, SIO, NONE, NONE);
> > +MSCC_P(3, SIO, NONE, NONE);
> > +MSCC_P(4, SIO1, NONE, NONE);
> > +MSCC_P(5, SIO1, NONE, NONE);
> > +MSCC_P(6, IRQ0_IN, IRQ0_OUT, NONE);
> > +MSCC_P(7, IRQ1_IN, IRQ1_OUT, NONE);
> > +MSCC_P(8, PTP0, NONE, NONE);
> > +MSCC_P(9, PTP1, NONE, NONE);
> > +MSCC_P(10, UART, NONE, NONE);
> > +MSCC_P(11, UART, NONE, NONE);
> > +MSCC_P(12, SIO1, NONE, NONE);
> > +MSCC_P(13, SIO1, NONE, NONE);
> > +MSCC_P(14, TWI, TWI_SCL_M, NONE);
> > +MSCC_P(15, TWI, NONE, NONE);
> > +MSCC_P(16, SI, TWI_SCL_M, NONE);
> > +MSCC_P(17, SI, TWI_SCL_M, NONE);
> > +MSCC_P(18, SI, TWI_SCL_M, NONE);
> > +MSCC_P(19, PCI_WAKE, NONE, NONE);
> > +MSCC_P(20, IRQ0_OUT, TWI_SCL_M, NONE);
> > +MSCC_P(21, IRQ1_OUT, TWI_SCL_M, NONE);
> > +MSCC_P(22, TACHO, NONE, NONE);
> > +MSCC_P(23, PWM, NONE, NONE);
> > +MSCC_P(24, UART2, NONE, NONE);
> > +MSCC_P(25, UART2, SI, NONE);
> > +MSCC_P(26, PTP2, SI, NONE);
> > +MSCC_P(27, PTP3, SI, NONE);
> > +MSCC_P(28, TWI2, SI, NONE);
> > +MSCC_P(29, TWI, SI, NONE);
> > +MSCC_P(30, SIO2, SI, NONE);
> > +MSCC_P(31, SIO2, SI, NONE);
> > +MSCC_P(32, SIO2, SI, NONE);
> > +MSCC_P(33, SIO2, SI, NONE);
> > +MSCC_P(34, NONE, TWI_SCL_M, NONE);
> > +MSCC_P(35, NONE, TWI_SCL_M, NONE);
> > +MSCC_P(36, NONE, TWI_SCL_M, NONE);
> > +MSCC_P(37, NONE, TWI_SCL_M, NONE);
> > +MSCC_P(38, NONE, TWI_SCL_M, NONE);
> > +MSCC_P(39, NONE, TWI_SCL_M, NONE);
> > +MSCC_P(40, NONE, TWI_SCL_M, NONE);
> > +MSCC_P(41, NONE, TWI_SCL_M, NONE);
> > +MSCC_P(42, NONE, TWI_SCL_M, NONE);
> > +MSCC_P(43, NONE, TWI_SCL_M, NONE);
> > +MSCC_P(44, NONE, SFP8, NONE);
> > +MSCC_P(45, NONE, SFP9, NONE);
> > +MSCC_P(46, NONE, SFP10, NONE);
> > +MSCC_P(47, NONE, SFP11, NONE);
> > +MSCC_P(48, SFP0, NONE, NONE);
> > +MSCC_P(49, SFP1, SI, NONE);
> > +MSCC_P(50, SFP2, SI, NONE);
> > +MSCC_P(51, SFP3, SI, NONE);
> > +MSCC_P(52, SFP4, NONE, NONE);
> > +MSCC_P(53, SFP5, NONE, NONE);
> > +MSCC_P(54, SFP6, NONE, NONE);
> > +MSCC_P(55, SFP7, NONE, NONE);
> > +MSCC_P(56, MIIM1, SFP12, NONE);
> > +MSCC_P(57, MIIM1, SFP13, NONE);
> > +MSCC_P(58, MIIM2, SFP14, NONE);
> > +MSCC_P(59, MIIM2, SFP15, NONE);
> > +MSCC_P(60, NONE, NONE, NONE);
> > +MSCC_P(61, NONE, NONE, NONE);
> > +MSCC_P(62, NONE, NONE, NONE);
> > +MSCC_P(63, NONE, NONE, NONE);
> > +
> > +#define JR2_PIN(n) { \
> > + .name = "GPIO_"#n, \
> > + .drv_data = &mscc_pin_##n \
> > +}
> > +
> > +const struct mscc_pin_data jr2_pins[] = {
> > + JR2_PIN(0),
> > + JR2_PIN(1),
> > + JR2_PIN(2),
> > + JR2_PIN(3),
> > + JR2_PIN(4),
> > + JR2_PIN(5),
> > + JR2_PIN(6),
> > + JR2_PIN(7),
> > + JR2_PIN(8),
> > + JR2_PIN(9),
> > + JR2_PIN(10),
> > + JR2_PIN(11),
> > + JR2_PIN(12),
> > + JR2_PIN(13),
> > + JR2_PIN(14),
> > + JR2_PIN(15),
> > + JR2_PIN(16),
> > + JR2_PIN(17),
> > + JR2_PIN(18),
> > + JR2_PIN(19),
> > + JR2_PIN(20),
> > + JR2_PIN(21),
> > + JR2_PIN(22),
> > + JR2_PIN(23),
> > + JR2_PIN(24),
> > + JR2_PIN(25),
> > + JR2_PIN(26),
> > + JR2_PIN(27),
> > + JR2_PIN(28),
> > + JR2_PIN(29),
> > + JR2_PIN(30),
> > + JR2_PIN(31),
> > + JR2_PIN(32),
> > + JR2_PIN(33),
> > + JR2_PIN(34),
> > + JR2_PIN(35),
> > + JR2_PIN(36),
> > + JR2_PIN(37),
> > + JR2_PIN(38),
> > + JR2_PIN(39),
> > + JR2_PIN(40),
> > + JR2_PIN(41),
> > + JR2_PIN(42),
> > + JR2_PIN(43),
> > + JR2_PIN(44),
> > + JR2_PIN(45),
> > + JR2_PIN(46),
> > + JR2_PIN(47),
> > + JR2_PIN(48),
> > + JR2_PIN(49),
> > + JR2_PIN(50),
> > + JR2_PIN(51),
> > + JR2_PIN(52),
> > + JR2_PIN(53),
> > + JR2_PIN(54),
> > + JR2_PIN(55),
> > + JR2_PIN(56),
> > + JR2_PIN(57),
> > + JR2_PIN(58),
> > + JR2_PIN(59),
> > + JR2_PIN(60),
> > + JR2_PIN(61),
> > + JR2_PIN(62),
> > + JR2_PIN(63),
> > +};
> > +
> > +int mscc_pinmux_set_mux(struct udevice *dev,
> > + unsigned int pin_selector, unsigned int selector)
> > +{
> > + struct mscc_pinctrl *info = dev_get_priv(dev);
> > + struct mscc_pin_caps *pin = info->mscc_pins[pin_selector].drv_data;
> > + int f, offset, regoff;
> > +
> > + f = mscc_pin_function_idx(pin_selector, selector, info->mscc_pins);
> > + if (f < 0)
> > + return -EINVAL;
> > + /*
> > + * f is encoded on two bits.
> > + * bit 0 of f goes in BIT(pin) of ALT0, bit 1 of f goes in BIT(pin) of
> > + * ALT1
> > + * This is racy because both registers can't be updated at the same time
> > + * but it doesn't matter much for now.
> > + */
> > + offset = pin->pin;
> > + regoff = MSCC_GPIO_ALT0;
> > + if (offset >= 32) {
> > + offset = offset % 32;
> > + regoff = MSCC_GPIO_ALT1;
> > + }
> > +
> > + if (f & BIT(0))
> > + mscc_setbits(offset, info->regs + regoff);
> > + else
> > + mscc_clrbits(offset, info->regs + regoff);
> > +
> > + if (f & BIT(1))
> > + mscc_setbits(offset, info->regs + regoff + 4);
> > + else
> > + mscc_clrbits(offset, info->regs + regoff + 4);
> > +
> > + return 0;
> > +}
> > +
> > +static int jr2_gpio_probe(struct udevice *dev)
> > +{
> > + struct gpio_dev_priv *uc_priv;
> > +
> > + uc_priv = dev_get_uclass_priv(dev);
> > + uc_priv->bank_name = "jr2-gpio";
> > + uc_priv->gpio_count = ARRAY_SIZE(jr2_pins);
> > +
> > + return 0;
> > +}
> > +
> > +static struct driver jr2_gpio_driver = {
> > + .name = "jr2-gpio",
> > + .id = UCLASS_GPIO,
> > + .probe = jr2_gpio_probe,
> > + .ops = &mscc_gpio_ops,
> > +};
> > +
> > +int jr2_pinctrl_probe(struct udevice *dev)
> > +{
> > + int ret;
> > +
> > + ret = mscc_pinctrl_probe(dev, FUNC_MAX, jr2_pins,
> > + ARRAY_SIZE(jr2_pins),
> > + jr2_function_names);
> > +
> > + if (ret)
> > + return ret;
> > +
> > + ret = device_bind(dev, &jr2_gpio_driver, "jr2-gpio", NULL,
> > + dev_of_offset(dev), NULL);
> > +
> > + if (ret)
> > + return ret;
> > +
> > + return 0;
> > +}
> > +
> > +static const struct udevice_id jr2_pinctrl_of_match[] = {
> > + { .compatible = "mscc,jr2-pinctrl" },
> > + {},
> > +};
> > +
> > +U_BOOT_DRIVER(jr2_pinctrl) = {
> > + .name = "jr2-pinctrl",
> > + .id = UCLASS_PINCTRL,
> > + .of_match = of_match_ptr(jr2_pinctrl_of_match),
> > + .probe = jr2_pinctrl_probe,
> > + .priv_auto_alloc_size = sizeof(struct mscc_pinctrl),
> > + .ops = &mscc_pinctrl_ops,
> > +};
> >
>
> --
> - Daniel
--
/Horatiu
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