diff --git a/MAINTAINERS b/MAINTAINERS index 1039269676..2881d9e1f8 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -526,6 +526,7 @@ F: configs/mscc* F: drivers/gpio/mscc_sgpio.c F: drivers/spi/mscc_bb_spi.c F: include/configs/vcoreiii.h +F: drivers/pinctrl/mscc/ MIPS JZ4780 M: Ezequiel Garcia diff --git a/drivers/pinctrl/mscc/Kconfig b/drivers/pinctrl/mscc/Kconfig index cfc6c06076..d07ea1b320 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 6910671728..8038d54222 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 d74b8a6649..bd3e6ea328 100644 --- a/drivers/pinctrl/mscc/mscc-common.c +++ b/drivers/pinctrl/mscc/mscc-common.c @@ -22,16 +22,37 @@ #include #include "mscc-common.h" -#define MSCC_GPIO_OUT_SET 0x0 -#define MSCC_GPIO_OUT_CLR 0x4 -#define MSCC_GPIO_OUT 0x8 -#define MSCC_GPIO_IN 0xc -#define MSCC_GPIO_OE 0x10 -#define MSCC_GPIO_INTR 0x14 -#define MSCC_GPIO_INTR_ENA 0x18 -#define MSCC_GPIO_INTR_IDENT 0x1c -#define MSCC_GPIO_ALT0 0x20 -#define MSCC_GPIO_ALT1 0x24 +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); +} + +static 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); +} + +static 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) { @@ -67,7 +88,7 @@ static int mscc_pinmux_set_mux(struct udevice *dev, { struct mscc_pinctrl *info = dev_get_priv(dev); struct mscc_pin_caps *pin = info->mscc_pins[pin_selector].drv_data; - int f; + int f, offset, regoff; f = mscc_pin_function_idx(pin_selector, selector, info->mscc_pins); if (f < 0) @@ -79,15 +100,22 @@ 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. */ + offset = pin->pin; + regoff = info->mscc_gpios[MSCC_GPIO_ALT0]; + if (offset >= 32) { + offset = offset % 32; + regoff = info->mscc_gpios[MSCC_GPIO_ALT1]; + } + if (f & BIT(0)) - setbits_le32(info->regs + MSCC_GPIO_ALT0, BIT(pin->pin)); + mscc_setbits(offset, info->regs + regoff); else - clrbits_le32(info->regs + MSCC_GPIO_ALT0, BIT(pin->pin)); + mscc_clrbits(offset, info->regs + regoff); if (f & BIT(1)) - setbits_le32(info->regs + MSCC_GPIO_ALT1, BIT(pin->pin - 1)); + mscc_setbits(offset, info->regs + regoff + 4); else - clrbits_le32(info->regs + MSCC_GPIO_ALT1, BIT(pin->pin - 1)); + mscc_clrbits(offset, info->regs + regoff + 4); return 0; } @@ -120,8 +148,8 @@ 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; @@ -150,9 +178,15 @@ 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 + info->mscc_gpios[MSCC_GPIO_OE]) & + BIT(offset % 32)) + val = mscc_readl(offset, + info->regs + info->mscc_gpios[MSCC_GPIO_OUT]); + else + val = mscc_readl(offset, + info->regs + info->mscc_gpios[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) @@ -160,9 +194,11 @@ 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 + info->mscc_gpios[MSCC_GPIO_OUT_SET]); else - writel(BIT(offset), info->regs + MSCC_GPIO_OUT_CLR); + mscc_writel(offset, + info->regs + info->mscc_gpios[MSCC_GPIO_OUT_CLR]); return 0; } @@ -172,16 +208,16 @@ 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 + info->mscc_gpios[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) { struct mscc_pinctrl *info = dev_get_priv(dev->parent); - clrbits_le32(info->regs + MSCC_GPIO_OE, BIT(offset)); + mscc_clrbits(offset, info->regs + info->mscc_gpios[MSCC_GPIO_OE]); return 0; } @@ -191,7 +227,7 @@ 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 + info->mscc_gpios[MSCC_GPIO_OE]); return mscc_gpio_set(dev, offset, value); } @@ -215,7 +251,8 @@ 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, + const unsigned long *mscc_gpios) { struct mscc_pinctrl *priv = dev_get_priv(dev); int ret; @@ -230,6 +267,7 @@ int mscc_pinctrl_probe(struct udevice *dev, int num_func, priv->mscc_pins = mscc_pins; priv->num_pins = num_pins; priv->function_names = function_names; + priv->mscc_gpios = mscc_gpios; ret = mscc_pinctrl_register(dev, priv); return ret; diff --git a/drivers/pinctrl/mscc/mscc-common.h b/drivers/pinctrl/mscc/mscc-common.h index b0001db44c..3c5c1faf84 100644 --- a/drivers/pinctrl/mscc/mscc-common.h +++ b/drivers/pinctrl/mscc/mscc-common.h @@ -9,6 +9,19 @@ #define MSCC_FUNC_PER_PIN 4 +enum mscc_regs_gpio { + MSCC_GPIO_OUT_SET, + MSCC_GPIO_OUT_CLR, + MSCC_GPIO_OUT, + MSCC_GPIO_IN, + MSCC_GPIO_OE, + MSCC_GPIO_INTR, + MSCC_GPIO_INTR_ENA, + MSCC_GPIO_INTR_IDENT, + MSCC_GPIO_ALT0, + MSCC_GPIO_ALT1, +}; + struct mscc_pin_caps { unsigned int pin; unsigned char functions[MSCC_FUNC_PER_PIN]; @@ -41,11 +54,13 @@ struct mscc_pinctrl { const struct mscc_pin_data *mscc_pins; int num_pins; char * const *function_names; + const unsigned long *mscc_gpios; }; 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, + const unsigned long *mscc_gpios); const struct pinctrl_ops mscc_pinctrl_ops; const struct dm_gpio_ops mscc_gpio_ops; diff --git a/drivers/pinctrl/mscc/pinctrl-jr2.c b/drivers/pinctrl/mscc/pinctrl-jr2.c new file mode 100644 index 0000000000..72a9470854 --- /dev/null +++ b/drivers/pinctrl/mscc/pinctrl-jr2.c @@ -0,0 +1,323 @@ +// SPDX-License-Identifier: (GPL-2.0 OR MIT) +/* + * Microsemi SoCs pinctrl driver + * + * Author: + * Copyright (c) 2018 Microsemi Corporation + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include "mscc-common.h" + +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_SG0, + FUNC_SG1, + FUNC_SG2, + FUNC_SI, + FUNC_TACHO, + FUNC_TWI, + FUNC_TWI2, + FUNC_TWI_SCL_M, + FUNC_UART, + FUNC_UART2, + FUNC_MAX +}; + +static char * const 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_SG0] = "sg0", + [FUNC_SG1] = "sg1", + [FUNC_SG2] = "sg2", + [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", +}; + +#define JR2_P(p, f0, f1) \ +static struct mscc_pin_caps jr2_pin_##p = { \ + .pin = p, \ + .functions = { \ + FUNC_GPIO, FUNC_##f0, FUNC_##f1, FUNC_NONE \ + }, \ +} + +JR2_P(0, SG0, NONE); +JR2_P(1, SG0, NONE); +JR2_P(2, SG0, NONE); +JR2_P(3, SG0, NONE); +JR2_P(4, SG1, NONE); +JR2_P(5, SG1, NONE); +JR2_P(6, IRQ0_IN, IRQ0_OUT); +JR2_P(7, IRQ1_IN, IRQ1_OUT); +JR2_P(8, PTP0, NONE); +JR2_P(9, PTP1, NONE); +JR2_P(10, UART, NONE); +JR2_P(11, UART, NONE); +JR2_P(12, SG1, NONE); +JR2_P(13, SG1, NONE); +JR2_P(14, TWI, TWI_SCL_M); +JR2_P(15, TWI, NONE); +JR2_P(16, SI, TWI_SCL_M); +JR2_P(17, SI, TWI_SCL_M); +JR2_P(18, SI, TWI_SCL_M); +JR2_P(19, PCI_WAKE, NONE); +JR2_P(20, IRQ0_OUT, TWI_SCL_M); +JR2_P(21, IRQ1_OUT, TWI_SCL_M); +JR2_P(22, TACHO, NONE); +JR2_P(23, PWM, NONE); +JR2_P(24, UART2, NONE); +JR2_P(25, UART2, SI); +JR2_P(26, PTP2, SI); +JR2_P(27, PTP3, SI); +JR2_P(28, TWI2, SI); +JR2_P(29, TWI, SI); +JR2_P(30, SG2, SI); +JR2_P(31, SG2, SI); +JR2_P(32, SG2, SI); +JR2_P(33, SG2, SI); +JR2_P(34, NONE, TWI_SCL_M); +JR2_P(35, NONE, TWI_SCL_M); +JR2_P(36, NONE, TWI_SCL_M); +JR2_P(37, NONE, TWI_SCL_M); +JR2_P(38, NONE, TWI_SCL_M); +JR2_P(39, NONE, TWI_SCL_M); +JR2_P(40, NONE, TWI_SCL_M); +JR2_P(41, NONE, TWI_SCL_M); +JR2_P(42, NONE, TWI_SCL_M); +JR2_P(43, NONE, TWI_SCL_M); +JR2_P(44, NONE, SFP8); +JR2_P(45, NONE, SFP9); +JR2_P(46, NONE, SFP10); +JR2_P(47, NONE, SFP11); +JR2_P(48, SFP0, NONE); +JR2_P(49, SFP1, SI); +JR2_P(50, SFP2, SI); +JR2_P(51, SFP3, SI); +JR2_P(52, SFP4, NONE); +JR2_P(53, SFP5, NONE); +JR2_P(54, SFP6, NONE); +JR2_P(55, SFP7, NONE); +JR2_P(56, MIIM1, SFP12); +JR2_P(57, MIIM1, SFP13); +JR2_P(58, MIIM2, SFP14); +JR2_P(59, MIIM2, SFP15); +JR2_P(60, NONE, NONE); +JR2_P(61, NONE, NONE); +JR2_P(62, NONE, NONE); +JR2_P(63, NONE, NONE); + +#define JR2_PIN(n) { \ + .name = "GPIO_"#n, \ + .drv_data = &jr2_pin_##n \ +} + +static 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), +}; + +static const unsigned long jr2_gpios[] = { + [MSCC_GPIO_OUT_SET] = 0x00, + [MSCC_GPIO_OUT_CLR] = 0x08, + [MSCC_GPIO_OUT] = 0x10, + [MSCC_GPIO_IN] = 0x18, + [MSCC_GPIO_OE] = 0x20, + [MSCC_GPIO_INTR] = 0x28, + [MSCC_GPIO_INTR_ENA] = 0x30, + [MSCC_GPIO_INTR_IDENT] = 0x38, + [MSCC_GPIO_ALT0] = 0x40, + [MSCC_GPIO_ALT1] = 0x48, +}; + +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, +}; + +static 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, + jr2_gpios); + + 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,jaguar2-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, +}; diff --git a/drivers/pinctrl/mscc/pinctrl-luton.c b/drivers/pinctrl/mscc/pinctrl-luton.c index 7166588e3c..17fbc53c25 100644 --- a/drivers/pinctrl/mscc/pinctrl-luton.c +++ b/drivers/pinctrl/mscc/pinctrl-luton.c @@ -123,6 +123,19 @@ static const struct mscc_pin_data luton_pins[] = { LUTON_PIN(31), }; +static const unsigned long luton_gpios[] = { + [MSCC_GPIO_OUT_SET] = 0x00, + [MSCC_GPIO_OUT_CLR] = 0x04, + [MSCC_GPIO_OUT] = 0x08, + [MSCC_GPIO_IN] = 0x0c, + [MSCC_GPIO_OE] = 0x10, + [MSCC_GPIO_INTR] = 0x14, + [MSCC_GPIO_INTR_ENA] = 0x18, + [MSCC_GPIO_INTR_IDENT] = 0x1c, + [MSCC_GPIO_ALT0] = 0x20, + [MSCC_GPIO_ALT1] = 0x24, +}; + static int luton_gpio_probe(struct udevice *dev) { struct gpio_dev_priv *uc_priv; @@ -146,7 +159,8 @@ int luton_pinctrl_probe(struct udevice *dev) int ret; ret = mscc_pinctrl_probe(dev, FUNC_MAX, luton_pins, - ARRAY_SIZE(luton_pins), luton_function_names); + ARRAY_SIZE(luton_pins), luton_function_names, + luton_gpios); if (ret) return ret; diff --git a/drivers/pinctrl/mscc/pinctrl-ocelot.c b/drivers/pinctrl/mscc/pinctrl-ocelot.c index 10f9b90aad..49e026bc98 100644 --- a/drivers/pinctrl/mscc/pinctrl-ocelot.c +++ b/drivers/pinctrl/mscc/pinctrl-ocelot.c @@ -138,6 +138,19 @@ static const struct mscc_pin_data ocelot_pins[] = { OCELOT_PIN(21), }; +static const unsigned long ocelot_gpios[] = { + [MSCC_GPIO_OUT_SET] = 0x00, + [MSCC_GPIO_OUT_CLR] = 0x04, + [MSCC_GPIO_OUT] = 0x08, + [MSCC_GPIO_IN] = 0x0c, + [MSCC_GPIO_OE] = 0x10, + [MSCC_GPIO_INTR] = 0x14, + [MSCC_GPIO_INTR_ENA] = 0x18, + [MSCC_GPIO_INTR_IDENT] = 0x1c, + [MSCC_GPIO_ALT0] = 0x20, + [MSCC_GPIO_ALT1] = 0x24, +}; + static int ocelot_gpio_probe(struct udevice *dev) { struct gpio_dev_priv *uc_priv; @@ -162,7 +175,8 @@ int ocelot_pinctrl_probe(struct udevice *dev) ret = mscc_pinctrl_probe(dev, FUNC_MAX, ocelot_pins, ARRAY_SIZE(ocelot_pins), - ocelot_function_names); + ocelot_function_names, + ocelot_gpios); if (ret) return ret;