On 11.05.23 01:37, Jules Maselbas wrote: > sunxi pinctrl driver, adapted from Linux, is split in two parts: > - pinctrl-sunxi.c that implement sunxi-generic gpio and function mux > - pinctrl-sun50i-a64.c that only declare sun50i's pin functions
Could you describe why the pin functions is needed? Is this just sanity checking? > --- > drivers/pinctrl/Kconfig | 2 + > drivers/pinctrl/Makefile | 1 + > drivers/pinctrl/sunxi/Kconfig | 15 + > drivers/pinctrl/sunxi/Makefile | 3 + > drivers/pinctrl/sunxi/pinctrl-sun50i-a64.c | 593 +++++++++++++++++++++ > drivers/pinctrl/sunxi/pinctrl-sunxi.c | 371 +++++++++++++ > drivers/pinctrl/sunxi/pinctrl-sunxi.h | 224 ++++++++ > 7 files changed, 1209 insertions(+) > create mode 100644 drivers/pinctrl/sunxi/Kconfig > create mode 100644 drivers/pinctrl/sunxi/Makefile > create mode 100644 drivers/pinctrl/sunxi/pinctrl-sun50i-a64.c > create mode 100644 drivers/pinctrl/sunxi/pinctrl-sunxi.c > create mode 100644 drivers/pinctrl/sunxi/pinctrl-sunxi.h > > diff --git a/drivers/pinctrl/Kconfig b/drivers/pinctrl/Kconfig > index 2ff99a39c8..0b3d79d1cc 100644 > --- a/drivers/pinctrl/Kconfig > +++ b/drivers/pinctrl/Kconfig > @@ -105,6 +105,8 @@ config PINCTRL_STM32 > default y if ARCH_STM32 > help > Pinmux and GPIO controller found on STM32 family > + > +source "drivers/pinctrl/sunxi/Kconfig" > endif > > endmenu > diff --git a/drivers/pinctrl/Makefile b/drivers/pinctrl/Makefile > index f1a5fa5715..3bc718d355 100644 > --- a/drivers/pinctrl/Makefile > +++ b/drivers/pinctrl/Makefile > @@ -16,3 +16,4 @@ obj-$(CONFIG_PINCTRL_VF610) += pinctrl-vf610.o > obj-$(CONFIG_PINCTRL_STM32) += pinctrl-stm32.o > > obj-$(CONFIG_ARCH_MVEBU) += mvebu/ > +obj-$(CONFIG_ARCH_SUNXI) += sunxi/ > diff --git a/drivers/pinctrl/sunxi/Kconfig b/drivers/pinctrl/sunxi/Kconfig > new file mode 100644 > index 0000000000..36168dc2bb > --- /dev/null > +++ b/drivers/pinctrl/sunxi/Kconfig > @@ -0,0 +1,15 @@ > +# SPDX-License-Identifier: GPL-2.0-only > +if ARCH_SUNXI > + > +config PINCTRL_SUNXI > + bool > + select PINMUX Undefined > + select GENERIC_PINCONF Undefined > + select GPIOLIB > + > +config PINCTRL_SUN50I_A64 > + bool "Support for the Allwinner A64 PIO" > + default ARM64 && ARCH_SUNXI ARM64 undefined > + select PINCTRL_SUNXI > + > +endif > diff --git a/drivers/pinctrl/sunxi/Makefile b/drivers/pinctrl/sunxi/Makefile > new file mode 100644 > index 0000000000..db0ff5b50b > --- /dev/null > +++ b/drivers/pinctrl/sunxi/Makefile > @@ -0,0 +1,3 @@ > +# SPDX-License-Identifier: GPL-2.0 > +obj-$(CONFIG_ARCH_SUNXI) += pinctrl-sunxi.o > +obj-$(CONFIG_PINCTRL_SUN50I_A64) += pinctrl-sun50i-a64.o > diff --git a/drivers/pinctrl/sunxi/pinctrl-sun50i-a64.c > b/drivers/pinctrl/sunxi/pinctrl-sun50i-a64.c > new file mode 100644 > index 0000000000..4a087802c8 > --- /dev/null > +++ b/drivers/pinctrl/sunxi/pinctrl-sun50i-a64.c > @@ -0,0 +1,593 @@ > +/* > + * Allwinner A64 SoCs pinctrl driver. > + * > + * Copyright (C) 2016 - ARM Ltd. > + * Author: Andre Przywara <[email protected]> > + * > + * Based on pinctrl-sun7i-a20.c, which is: > + * Copyright (C) 2014 Maxime Ripard <[email protected]> > + * > + * 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. SPDX? > + */ > + > +#include <common.h> > +#include <init.h> > + > +#include "pinctrl-sunxi.h" > + > +static const struct sunxi_desc_pin a64_pins[] = { > + SUNXI_PIN(SUNXI_PINCTRL_PIN(B, 0), > + SUNXI_FUNCTION(0x0, "gpio_in"), > + SUNXI_FUNCTION(0x1, "gpio_out"), > + SUNXI_FUNCTION(0x2, "uart2"), /* TX */ > + SUNXI_FUNCTION(0x4, "jtag"), /* MS0 */ > + SUNXI_FUNCTION_IRQ_BANK(0x6, 0, 0)), /* EINT0 */ > + SUNXI_PIN(SUNXI_PINCTRL_PIN(B, 1), > + SUNXI_FUNCTION(0x0, "gpio_in"), > + SUNXI_FUNCTION(0x1, "gpio_out"), > + SUNXI_FUNCTION(0x2, "uart2"), /* RX */ > + SUNXI_FUNCTION(0x4, "jtag"), /* CK0 */ > + SUNXI_FUNCTION(0x5, "sim"), /* VCCEN */ > + SUNXI_FUNCTION_IRQ_BANK(0x6, 0, 1)), /* EINT1 */ > + SUNXI_PIN(SUNXI_PINCTRL_PIN(B, 2), > + SUNXI_FUNCTION(0x0, "gpio_in"), > + SUNXI_FUNCTION(0x1, "gpio_out"), > + SUNXI_FUNCTION(0x2, "uart2"), /* RTS */ > + SUNXI_FUNCTION(0x4, "jtag"), /* DO0 */ > + SUNXI_FUNCTION(0x5, "sim"), /* VPPEN */ > + SUNXI_FUNCTION_IRQ_BANK(0x6, 0, 2)), /* EINT2 */ > + SUNXI_PIN(SUNXI_PINCTRL_PIN(B, 3), > + SUNXI_FUNCTION(0x0, "gpio_in"), > + SUNXI_FUNCTION(0x1, "gpio_out"), > + SUNXI_FUNCTION(0x2, "uart2"), /* CTS */ > + SUNXI_FUNCTION(0x3, "i2s0"), /* MCLK */ > + SUNXI_FUNCTION(0x4, "jtag"), /* DI0 */ > + SUNXI_FUNCTION(0x5, "sim"), /* VPPPP */ > + SUNXI_FUNCTION_IRQ_BANK(0x6, 0, 3)), /* EINT3 */ > + SUNXI_PIN(SUNXI_PINCTRL_PIN(B, 4), > + SUNXI_FUNCTION(0x0, "gpio_in"), > + SUNXI_FUNCTION(0x1, "gpio_out"), > + SUNXI_FUNCTION(0x2, "aif2"), /* SYNC */ > + SUNXI_FUNCTION(0x3, "i2s0"), /* SYNC */ > + SUNXI_FUNCTION(0x5, "sim"), /* CLK */ > + SUNXI_FUNCTION_IRQ_BANK(0x6, 0, 4)), /* EINT4 */ > + SUNXI_PIN(SUNXI_PINCTRL_PIN(B, 5), > + SUNXI_FUNCTION(0x0, "gpio_in"), > + SUNXI_FUNCTION(0x1, "gpio_out"), > + SUNXI_FUNCTION(0x2, "aif2"), /* BCLK */ > + SUNXI_FUNCTION(0x3, "i2s0"), /* BCLK */ > + SUNXI_FUNCTION(0x5, "sim"), /* DATA */ > + SUNXI_FUNCTION_IRQ_BANK(0x6, 0, 5)), /* EINT5 */ > + SUNXI_PIN(SUNXI_PINCTRL_PIN(B, 6), > + SUNXI_FUNCTION(0x0, "gpio_in"), > + SUNXI_FUNCTION(0x1, "gpio_out"), > + SUNXI_FUNCTION(0x2, "aif2"), /* DOUT */ > + SUNXI_FUNCTION(0x3, "i2s0"), /* DOUT */ > + SUNXI_FUNCTION(0x5, "sim"), /* RST */ > + SUNXI_FUNCTION_IRQ_BANK(0x6, 0, 6)), /* EINT6 */ > + SUNXI_PIN(SUNXI_PINCTRL_PIN(B, 7), > + SUNXI_FUNCTION(0x0, "gpio_in"), > + SUNXI_FUNCTION(0x1, "gpio_out"), > + SUNXI_FUNCTION(0x2, "aif2"), /* DIN */ > + SUNXI_FUNCTION(0x3, "i2s0"), /* DIN */ > + SUNXI_FUNCTION(0x5, "sim"), /* DET */ > + SUNXI_FUNCTION_IRQ_BANK(0x6, 0, 7)), /* EINT7 */ > + SUNXI_PIN(SUNXI_PINCTRL_PIN(B, 8), > + SUNXI_FUNCTION(0x0, "gpio_in"), > + SUNXI_FUNCTION(0x1, "gpio_out"), > + SUNXI_FUNCTION(0x4, "uart0"), /* TX */ > + SUNXI_FUNCTION_IRQ_BANK(0x6, 0, 8)), /* EINT8 */ > + SUNXI_PIN(SUNXI_PINCTRL_PIN(B, 9), > + SUNXI_FUNCTION(0x0, "gpio_in"), > + SUNXI_FUNCTION(0x1, "gpio_out"), > + SUNXI_FUNCTION(0x4, "uart0"), /* RX */ > + SUNXI_FUNCTION_IRQ_BANK(0x6, 0, 9)), /* EINT9 */ > + /* Hole */ > + SUNXI_PIN(SUNXI_PINCTRL_PIN(C, 0), > + SUNXI_FUNCTION(0x0, "gpio_in"), > + SUNXI_FUNCTION(0x1, "gpio_out"), > + SUNXI_FUNCTION(0x2, "nand0"), /* NWE */ > + SUNXI_FUNCTION(0x4, "spi0")), /* MOSI */ > + SUNXI_PIN(SUNXI_PINCTRL_PIN(C, 1), > + SUNXI_FUNCTION(0x0, "gpio_in"), > + SUNXI_FUNCTION(0x1, "gpio_out"), > + SUNXI_FUNCTION(0x2, "nand0"), /* NALE */ > + SUNXI_FUNCTION(0x3, "mmc2"), /* DS */ > + SUNXI_FUNCTION(0x4, "spi0")), /* MISO */ > + SUNXI_PIN(SUNXI_PINCTRL_PIN(C, 2), > + SUNXI_FUNCTION(0x0, "gpio_in"), > + SUNXI_FUNCTION(0x1, "gpio_out"), > + SUNXI_FUNCTION(0x2, "nand0"), /* NCLE */ > + SUNXI_FUNCTION(0x4, "spi0")), /* SCK */ > + SUNXI_PIN(SUNXI_PINCTRL_PIN(C, 3), > + SUNXI_FUNCTION(0x0, "gpio_in"), > + SUNXI_FUNCTION(0x1, "gpio_out"), > + SUNXI_FUNCTION(0x2, "nand0"), /* NCE1 */ > + SUNXI_FUNCTION(0x4, "spi0")), /* CS */ > + SUNXI_PIN(SUNXI_PINCTRL_PIN(C, 4), > + SUNXI_FUNCTION(0x0, "gpio_in"), > + SUNXI_FUNCTION(0x1, "gpio_out"), > + SUNXI_FUNCTION(0x2, "nand0")), /* NCE0 */ > + SUNXI_PIN(SUNXI_PINCTRL_PIN(C, 5), > + SUNXI_FUNCTION(0x0, "gpio_in"), > + SUNXI_FUNCTION(0x1, "gpio_out"), > + SUNXI_FUNCTION(0x2, "nand0"), /* NRE# */ > + SUNXI_FUNCTION(0x3, "mmc2")), /* CLK */ > + SUNXI_PIN(SUNXI_PINCTRL_PIN(C, 6), > + SUNXI_FUNCTION(0x0, "gpio_in"), > + SUNXI_FUNCTION(0x1, "gpio_out"), > + SUNXI_FUNCTION(0x2, "nand0"), /* NRB0 */ > + SUNXI_FUNCTION(0x3, "mmc2")), /* CMD */ > + SUNXI_PIN(SUNXI_PINCTRL_PIN(C, 7), > + SUNXI_FUNCTION(0x0, "gpio_in"), > + SUNXI_FUNCTION(0x1, "gpio_out"), > + SUNXI_FUNCTION(0x2, "nand0")), /* NRB1 */ > + SUNXI_PIN(SUNXI_PINCTRL_PIN(C, 8), > + SUNXI_FUNCTION(0x0, "gpio_in"), > + SUNXI_FUNCTION(0x1, "gpio_out"), > + SUNXI_FUNCTION(0x2, "nand0"), /* NDQ0 */ > + SUNXI_FUNCTION(0x3, "mmc2")), /* D0 */ > + SUNXI_PIN(SUNXI_PINCTRL_PIN(C, 9), > + SUNXI_FUNCTION(0x0, "gpio_in"), > + SUNXI_FUNCTION(0x1, "gpio_out"), > + SUNXI_FUNCTION(0x2, "nand0"), /* NDQ1 */ > + SUNXI_FUNCTION(0x3, "mmc2")), /* D1 */ > + SUNXI_PIN(SUNXI_PINCTRL_PIN(C, 10), > + SUNXI_FUNCTION(0x0, "gpio_in"), > + SUNXI_FUNCTION(0x1, "gpio_out"), > + SUNXI_FUNCTION(0x2, "nand0"), /* NDQ2 */ > + SUNXI_FUNCTION(0x3, "mmc2")), /* D2 */ > + SUNXI_PIN(SUNXI_PINCTRL_PIN(C, 11), > + SUNXI_FUNCTION(0x0, "gpio_in"), > + SUNXI_FUNCTION(0x1, "gpio_out"), > + SUNXI_FUNCTION(0x2, "nand0"), /* NDQ3 */ > + SUNXI_FUNCTION(0x3, "mmc2")), /* D3 */ > + SUNXI_PIN(SUNXI_PINCTRL_PIN(C, 12), > + SUNXI_FUNCTION(0x0, "gpio_in"), > + SUNXI_FUNCTION(0x1, "gpio_out"), > + SUNXI_FUNCTION(0x2, "nand0"), /* NDQ4 */ > + SUNXI_FUNCTION(0x3, "mmc2")), /* D4 */ > + SUNXI_PIN(SUNXI_PINCTRL_PIN(C, 13), > + SUNXI_FUNCTION(0x0, "gpio_in"), > + SUNXI_FUNCTION(0x1, "gpio_out"), > + SUNXI_FUNCTION(0x2, "nand0"), /* NDQ5 */ > + SUNXI_FUNCTION(0x3, "mmc2")), /* D5 */ > + SUNXI_PIN(SUNXI_PINCTRL_PIN(C, 14), > + SUNXI_FUNCTION(0x0, "gpio_in"), > + SUNXI_FUNCTION(0x1, "gpio_out"), > + SUNXI_FUNCTION(0x2, "nand0"), /* NDQ6 */ > + SUNXI_FUNCTION(0x3, "mmc2")), /* D6 */ > + SUNXI_PIN(SUNXI_PINCTRL_PIN(C, 15), > + SUNXI_FUNCTION(0x0, "gpio_in"), > + SUNXI_FUNCTION(0x1, "gpio_out"), > + SUNXI_FUNCTION(0x2, "nand0"), /* NDQ7 */ > + SUNXI_FUNCTION(0x3, "mmc2")), /* D7 */ > + SUNXI_PIN(SUNXI_PINCTRL_PIN(C, 16), > + SUNXI_FUNCTION(0x0, "gpio_in"), > + SUNXI_FUNCTION(0x1, "gpio_out"), > + SUNXI_FUNCTION(0x2, "nand0"), /* NDQS */ > + SUNXI_FUNCTION(0x3, "mmc2")), /* RST */ > + /* Hole */ > + SUNXI_PIN(SUNXI_PINCTRL_PIN(D, 0), > + SUNXI_FUNCTION(0x0, "gpio_in"), > + SUNXI_FUNCTION(0x1, "gpio_out"), > + SUNXI_FUNCTION(0x2, "lcd0"), /* D2 */ > + SUNXI_FUNCTION(0x3, "uart3"), /* TX */ > + SUNXI_FUNCTION(0x4, "spi1"), /* CS */ > + SUNXI_FUNCTION(0x5, "ccir")), /* CLK */ > + SUNXI_PIN(SUNXI_PINCTRL_PIN(D, 1), > + SUNXI_FUNCTION(0x0, "gpio_in"), > + SUNXI_FUNCTION(0x1, "gpio_out"), > + SUNXI_FUNCTION(0x2, "lcd0"), /* D3 */ > + SUNXI_FUNCTION(0x3, "uart3"), /* RX */ > + SUNXI_FUNCTION(0x4, "spi1"), /* CLK */ > + SUNXI_FUNCTION(0x5, "ccir")), /* DE */ > + SUNXI_PIN(SUNXI_PINCTRL_PIN(D, 2), > + SUNXI_FUNCTION(0x0, "gpio_in"), > + SUNXI_FUNCTION(0x1, "gpio_out"), > + SUNXI_FUNCTION(0x2, "lcd0"), /* D4 */ > + SUNXI_FUNCTION(0x3, "uart4"), /* TX */ > + SUNXI_FUNCTION(0x4, "spi1"), /* MOSI */ > + SUNXI_FUNCTION(0x5, "ccir")), /* HSYNC */ > + SUNXI_PIN(SUNXI_PINCTRL_PIN(D, 3), > + SUNXI_FUNCTION(0x0, "gpio_in"), > + SUNXI_FUNCTION(0x1, "gpio_out"), > + SUNXI_FUNCTION(0x2, "lcd0"), /* D5 */ > + SUNXI_FUNCTION(0x3, "uart4"), /* RX */ > + SUNXI_FUNCTION(0x4, "spi1"), /* MISO */ > + SUNXI_FUNCTION(0x5, "ccir")), /* VSYNC */ > + SUNXI_PIN(SUNXI_PINCTRL_PIN(D, 4), > + SUNXI_FUNCTION(0x0, "gpio_in"), > + SUNXI_FUNCTION(0x1, "gpio_out"), > + SUNXI_FUNCTION(0x2, "lcd0"), /* D6 */ > + SUNXI_FUNCTION(0x3, "uart4"), /* RTS */ > + SUNXI_FUNCTION(0x5, "ccir")), /* D0 */ > + SUNXI_PIN(SUNXI_PINCTRL_PIN(D, 5), > + SUNXI_FUNCTION(0x0, "gpio_in"), > + SUNXI_FUNCTION(0x1, "gpio_out"), > + SUNXI_FUNCTION(0x2, "lcd0"), /* D7 */ > + SUNXI_FUNCTION(0x3, "uart4"), /* CTS */ > + SUNXI_FUNCTION(0x5, "ccir")), /* D1 */ > + SUNXI_PIN(SUNXI_PINCTRL_PIN(D, 6), > + SUNXI_FUNCTION(0x0, "gpio_in"), > + SUNXI_FUNCTION(0x1, "gpio_out"), > + SUNXI_FUNCTION(0x2, "lcd0"), /* D10 */ > + SUNXI_FUNCTION(0x5, "ccir")), /* D2 */ > + SUNXI_PIN(SUNXI_PINCTRL_PIN(D, 7), > + SUNXI_FUNCTION(0x0, "gpio_in"), > + SUNXI_FUNCTION(0x1, "gpio_out"), > + SUNXI_FUNCTION(0x2, "lcd0"), /* D11 */ > + SUNXI_FUNCTION(0x5, "ccir")), /* D3 */ > + SUNXI_PIN(SUNXI_PINCTRL_PIN(D, 8), > + SUNXI_FUNCTION(0x0, "gpio_in"), > + SUNXI_FUNCTION(0x1, "gpio_out"), > + SUNXI_FUNCTION(0x2, "lcd0"), /* D12 */ > + SUNXI_FUNCTION(0x4, "emac"), /* ERXD3 */ > + SUNXI_FUNCTION(0x5, "ccir")), /* D4 */ > + SUNXI_PIN(SUNXI_PINCTRL_PIN(D, 9), > + SUNXI_FUNCTION(0x0, "gpio_in"), > + SUNXI_FUNCTION(0x1, "gpio_out"), > + SUNXI_FUNCTION(0x2, "lcd0"), /* D13 */ > + SUNXI_FUNCTION(0x4, "emac"), /* ERXD2 */ > + SUNXI_FUNCTION(0x5, "ccir")), /* D5 */ > + SUNXI_PIN(SUNXI_PINCTRL_PIN(D, 10), > + SUNXI_FUNCTION(0x0, "gpio_in"), > + SUNXI_FUNCTION(0x1, "gpio_out"), > + SUNXI_FUNCTION(0x2, "lcd0"), /* D14 */ > + SUNXI_FUNCTION(0x4, "emac")), /* ERXD1 */ > + SUNXI_PIN(SUNXI_PINCTRL_PIN(D, 11), > + SUNXI_FUNCTION(0x0, "gpio_in"), > + SUNXI_FUNCTION(0x1, "gpio_out"), > + SUNXI_FUNCTION(0x2, "lcd0"), /* D15 */ > + SUNXI_FUNCTION(0x4, "emac")), /* ERXD0 */ > + SUNXI_PIN(SUNXI_PINCTRL_PIN(D, 12), > + SUNXI_FUNCTION(0x0, "gpio_in"), > + SUNXI_FUNCTION(0x1, "gpio_out"), > + SUNXI_FUNCTION(0x2, "lcd0"), /* D18 */ > + SUNXI_FUNCTION(0x3, "lvds0"), /* VP0 */ > + SUNXI_FUNCTION(0x4, "emac")), /* ERXCK */ > + SUNXI_PIN(SUNXI_PINCTRL_PIN(D, 13), > + SUNXI_FUNCTION(0x0, "gpio_in"), > + SUNXI_FUNCTION(0x1, "gpio_out"), > + SUNXI_FUNCTION(0x2, "lcd0"), /* D19 */ > + SUNXI_FUNCTION(0x3, "lvds0"), /* VN0 */ > + SUNXI_FUNCTION(0x4, "emac")), /* ERXCTL */ > + SUNXI_PIN(SUNXI_PINCTRL_PIN(D, 14), > + SUNXI_FUNCTION(0x0, "gpio_in"), > + SUNXI_FUNCTION(0x1, "gpio_out"), > + SUNXI_FUNCTION(0x2, "lcd0"), /* D20 */ > + SUNXI_FUNCTION(0x3, "lvds0"), /* VP1 */ > + SUNXI_FUNCTION(0x4, "emac")), /* ENULL */ > + SUNXI_PIN(SUNXI_PINCTRL_PIN(D, 15), > + SUNXI_FUNCTION(0x0, "gpio_in"), > + SUNXI_FUNCTION(0x1, "gpio_out"), > + SUNXI_FUNCTION(0x2, "lcd0"), /* D21 */ > + SUNXI_FUNCTION(0x3, "lvds0"), /* VN1 */ > + SUNXI_FUNCTION(0x4, "emac"), /* ETXD3 */ > + SUNXI_FUNCTION(0x5, "ccir")), /* D6 */ > + SUNXI_PIN(SUNXI_PINCTRL_PIN(D, 16), > + SUNXI_FUNCTION(0x0, "gpio_in"), > + SUNXI_FUNCTION(0x1, "gpio_out"), > + SUNXI_FUNCTION(0x2, "lcd0"), /* D22 */ > + SUNXI_FUNCTION(0x3, "lvds0"), /* VP2 */ > + SUNXI_FUNCTION(0x4, "emac"), /* ETXD2 */ > + SUNXI_FUNCTION(0x5, "ccir")), /* D7 */ > + SUNXI_PIN(SUNXI_PINCTRL_PIN(D, 17), > + SUNXI_FUNCTION(0x0, "gpio_in"), > + SUNXI_FUNCTION(0x1, "gpio_out"), > + SUNXI_FUNCTION(0x2, "lcd0"), /* D23 */ > + SUNXI_FUNCTION(0x3, "lvds0"), /* VN2 */ > + SUNXI_FUNCTION(0x4, "emac")), /* ETXD1 */ > + SUNXI_PIN(SUNXI_PINCTRL_PIN(D, 18), > + SUNXI_FUNCTION(0x0, "gpio_in"), > + SUNXI_FUNCTION(0x1, "gpio_out"), > + SUNXI_FUNCTION(0x2, "lcd0"), /* CLK */ > + SUNXI_FUNCTION(0x3, "lvds0"), /* VPC */ > + SUNXI_FUNCTION(0x4, "emac")), /* ETXD0 */ > + SUNXI_PIN(SUNXI_PINCTRL_PIN(D, 19), > + SUNXI_FUNCTION(0x0, "gpio_in"), > + SUNXI_FUNCTION(0x1, "gpio_out"), > + SUNXI_FUNCTION(0x2, "lcd0"), /* DE */ > + SUNXI_FUNCTION(0x3, "lvds0"), /* VNC */ > + SUNXI_FUNCTION(0x4, "emac")), /* ETXCK */ > + SUNXI_PIN(SUNXI_PINCTRL_PIN(D, 20), > + SUNXI_FUNCTION(0x0, "gpio_in"), > + SUNXI_FUNCTION(0x1, "gpio_out"), > + SUNXI_FUNCTION(0x2, "lcd0"), /* HSYNC */ > + SUNXI_FUNCTION(0x3, "lvds0"), /* VP3 */ > + SUNXI_FUNCTION(0x4, "emac")), /* ETXCTL */ > + SUNXI_PIN(SUNXI_PINCTRL_PIN(D, 21), > + SUNXI_FUNCTION(0x0, "gpio_in"), > + SUNXI_FUNCTION(0x1, "gpio_out"), > + SUNXI_FUNCTION(0x2, "lcd0"), /* VSYNC */ > + SUNXI_FUNCTION(0x3, "lvds0"), /* VN3 */ > + SUNXI_FUNCTION(0x4, "emac")), /* ECLKIN */ > + SUNXI_PIN(SUNXI_PINCTRL_PIN(D, 22), > + SUNXI_FUNCTION(0x0, "gpio_in"), > + SUNXI_FUNCTION(0x1, "gpio_out"), > + SUNXI_FUNCTION(0x2, "pwm"), /* PWM0 */ > + SUNXI_FUNCTION(0x4, "emac")), /* EMDC */ > + SUNXI_PIN(SUNXI_PINCTRL_PIN(D, 23), > + SUNXI_FUNCTION(0x0, "gpio_in"), > + SUNXI_FUNCTION(0x1, "gpio_out"), > + SUNXI_FUNCTION(0x4, "emac")), /* EMDIO */ > + SUNXI_PIN(SUNXI_PINCTRL_PIN(D, 24), > + SUNXI_FUNCTION(0x0, "gpio_in"), > + SUNXI_FUNCTION(0x1, "gpio_out")), > + /* Hole */ > + SUNXI_PIN(SUNXI_PINCTRL_PIN(E, 0), > + SUNXI_FUNCTION(0x0, "gpio_in"), > + SUNXI_FUNCTION(0x1, "gpio_out"), > + SUNXI_FUNCTION(0x2, "csi"), /* PCK */ > + SUNXI_FUNCTION(0x4, "ts")), /* CLK */ > + SUNXI_PIN(SUNXI_PINCTRL_PIN(E, 1), > + SUNXI_FUNCTION(0x0, "gpio_in"), > + SUNXI_FUNCTION(0x1, "gpio_out"), > + SUNXI_FUNCTION(0x2, "csi"), /* CK */ > + SUNXI_FUNCTION(0x4, "ts")), /* ERR */ > + SUNXI_PIN(SUNXI_PINCTRL_PIN(E, 2), > + SUNXI_FUNCTION(0x0, "gpio_in"), > + SUNXI_FUNCTION(0x1, "gpio_out"), > + SUNXI_FUNCTION(0x2, "csi"), /* HSYNC */ > + SUNXI_FUNCTION(0x4, "ts")), /* SYNC */ > + SUNXI_PIN(SUNXI_PINCTRL_PIN(E, 3), > + SUNXI_FUNCTION(0x0, "gpio_in"), > + SUNXI_FUNCTION(0x1, "gpio_out"), > + SUNXI_FUNCTION(0x2, "csi"), /* VSYNC */ > + SUNXI_FUNCTION(0x4, "ts")), /* DVLD */ > + SUNXI_PIN(SUNXI_PINCTRL_PIN(E, 4), > + SUNXI_FUNCTION(0x0, "gpio_in"), > + SUNXI_FUNCTION(0x1, "gpio_out"), > + SUNXI_FUNCTION(0x2, "csi"), /* D0 */ > + SUNXI_FUNCTION(0x4, "ts")), /* D0 */ > + SUNXI_PIN(SUNXI_PINCTRL_PIN(E, 5), > + SUNXI_FUNCTION(0x0, "gpio_in"), > + SUNXI_FUNCTION(0x1, "gpio_out"), > + SUNXI_FUNCTION(0x2, "csi"), /* D1 */ > + SUNXI_FUNCTION(0x4, "ts")), /* D1 */ > + SUNXI_PIN(SUNXI_PINCTRL_PIN(E, 6), > + SUNXI_FUNCTION(0x0, "gpio_in"), > + SUNXI_FUNCTION(0x1, "gpio_out"), > + SUNXI_FUNCTION(0x2, "csi"), /* D2 */ > + SUNXI_FUNCTION(0x4, "ts")), /* D2 */ > + SUNXI_PIN(SUNXI_PINCTRL_PIN(E, 7), > + SUNXI_FUNCTION(0x0, "gpio_in"), > + SUNXI_FUNCTION(0x1, "gpio_out"), > + SUNXI_FUNCTION(0x2, "csi"), /* D3 */ > + SUNXI_FUNCTION(0x4, "ts")), /* D3 */ > + SUNXI_PIN(SUNXI_PINCTRL_PIN(E, 8), > + SUNXI_FUNCTION(0x0, "gpio_in"), > + SUNXI_FUNCTION(0x1, "gpio_out"), > + SUNXI_FUNCTION(0x2, "csi"), /* D4 */ > + SUNXI_FUNCTION(0x4, "ts")), /* D4 */ > + SUNXI_PIN(SUNXI_PINCTRL_PIN(E, 9), > + SUNXI_FUNCTION(0x0, "gpio_in"), > + SUNXI_FUNCTION(0x1, "gpio_out"), > + SUNXI_FUNCTION(0x2, "csi"), /* D5 */ > + SUNXI_FUNCTION(0x4, "ts")), /* D5 */ > + SUNXI_PIN(SUNXI_PINCTRL_PIN(E, 10), > + SUNXI_FUNCTION(0x0, "gpio_in"), > + SUNXI_FUNCTION(0x1, "gpio_out"), > + SUNXI_FUNCTION(0x2, "csi"), /* D6 */ > + SUNXI_FUNCTION(0x4, "ts")), /* D6 */ > + SUNXI_PIN(SUNXI_PINCTRL_PIN(E, 11), > + SUNXI_FUNCTION(0x0, "gpio_in"), > + SUNXI_FUNCTION(0x1, "gpio_out"), > + SUNXI_FUNCTION(0x2, "csi"), /* D7 */ > + SUNXI_FUNCTION(0x4, "ts")), /* D7 */ > + SUNXI_PIN(SUNXI_PINCTRL_PIN(E, 12), > + SUNXI_FUNCTION(0x0, "gpio_in"), > + SUNXI_FUNCTION(0x1, "gpio_out"), > + SUNXI_FUNCTION(0x2, "csi")), /* SCK */ > + SUNXI_PIN(SUNXI_PINCTRL_PIN(E, 13), > + SUNXI_FUNCTION(0x0, "gpio_in"), > + SUNXI_FUNCTION(0x1, "gpio_out"), > + SUNXI_FUNCTION(0x2, "csi")), /* SDA */ > + SUNXI_PIN(SUNXI_PINCTRL_PIN(E, 14), > + SUNXI_FUNCTION(0x0, "gpio_in"), > + SUNXI_FUNCTION(0x1, "gpio_out"), > + SUNXI_FUNCTION(0x2, "pll"), /* LOCK_DBG */ > + SUNXI_FUNCTION(0x3, "i2c2")), /* SCK */ > + SUNXI_PIN(SUNXI_PINCTRL_PIN(E, 15), > + SUNXI_FUNCTION(0x0, "gpio_in"), > + SUNXI_FUNCTION(0x1, "gpio_out"), > + SUNXI_FUNCTION(0x3, "i2c2")), /* SDA */ > + SUNXI_PIN(SUNXI_PINCTRL_PIN(E, 16), > + SUNXI_FUNCTION(0x0, "gpio_in"), > + SUNXI_FUNCTION(0x1, "gpio_out")), > + SUNXI_PIN(SUNXI_PINCTRL_PIN(E, 17), > + SUNXI_FUNCTION(0x0, "gpio_in"), > + SUNXI_FUNCTION(0x1, "gpio_out")), > + /* Hole */ > + SUNXI_PIN(SUNXI_PINCTRL_PIN(F, 0), > + SUNXI_FUNCTION(0x0, "gpio_in"), > + SUNXI_FUNCTION(0x1, "gpio_out"), > + SUNXI_FUNCTION(0x2, "mmc0"), /* D1 */ > + SUNXI_FUNCTION(0x3, "jtag")), /* MSI */ > + SUNXI_PIN(SUNXI_PINCTRL_PIN(F, 1), > + SUNXI_FUNCTION(0x0, "gpio_in"), > + SUNXI_FUNCTION(0x1, "gpio_out"), > + SUNXI_FUNCTION(0x2, "mmc0"), /* D0 */ > + SUNXI_FUNCTION(0x3, "jtag")), /* DI1 */ > + SUNXI_PIN(SUNXI_PINCTRL_PIN(F, 2), > + SUNXI_FUNCTION(0x0, "gpio_in"), > + SUNXI_FUNCTION(0x1, "gpio_out"), > + SUNXI_FUNCTION(0x2, "mmc0"), /* CLK */ > + SUNXI_FUNCTION(0x3, "uart0")), /* TX */ > + SUNXI_PIN(SUNXI_PINCTRL_PIN(F, 3), > + SUNXI_FUNCTION(0x0, "gpio_in"), > + SUNXI_FUNCTION(0x1, "gpio_out"), > + SUNXI_FUNCTION(0x2, "mmc0"), /* CMD */ > + SUNXI_FUNCTION(0x3, "jtag")), /* DO1 */ > + SUNXI_PIN(SUNXI_PINCTRL_PIN(F, 4), > + SUNXI_FUNCTION(0x0, "gpio_in"), > + SUNXI_FUNCTION(0x1, "gpio_out"), > + SUNXI_FUNCTION(0x2, "mmc0"), /* D3 */ > + SUNXI_FUNCTION(0x3, "uart0")), /* RX */ > + SUNXI_PIN(SUNXI_PINCTRL_PIN(F, 5), > + SUNXI_FUNCTION(0x0, "gpio_in"), > + SUNXI_FUNCTION(0x1, "gpio_out"), > + SUNXI_FUNCTION(0x2, "mmc0"), /* D2 */ > + SUNXI_FUNCTION(0x3, "jtag")), /* CK1 */ > + SUNXI_PIN(SUNXI_PINCTRL_PIN(F, 6), > + SUNXI_FUNCTION(0x0, "gpio_in"), > + SUNXI_FUNCTION(0x1, "gpio_out")), > + /* Hole */ > + SUNXI_PIN(SUNXI_PINCTRL_PIN(G, 0), > + SUNXI_FUNCTION(0x0, "gpio_in"), > + SUNXI_FUNCTION(0x1, "gpio_out"), > + SUNXI_FUNCTION(0x2, "mmc1"), /* CLK */ > + SUNXI_FUNCTION_IRQ_BANK(0x6, 1, 0)), /* EINT0 */ > + SUNXI_PIN(SUNXI_PINCTRL_PIN(G, 1), > + SUNXI_FUNCTION(0x0, "gpio_in"), > + SUNXI_FUNCTION(0x1, "gpio_out"), > + SUNXI_FUNCTION(0x2, "mmc1"), /* CMD */ > + SUNXI_FUNCTION_IRQ_BANK(0x6, 1, 1)), /* EINT1 */ > + SUNXI_PIN(SUNXI_PINCTRL_PIN(G, 2), > + SUNXI_FUNCTION(0x0, "gpio_in"), > + SUNXI_FUNCTION(0x1, "gpio_out"), > + SUNXI_FUNCTION(0x2, "mmc1"), /* D0 */ > + SUNXI_FUNCTION_IRQ_BANK(0x6, 1, 2)), /* EINT2 */ > + SUNXI_PIN(SUNXI_PINCTRL_PIN(G, 3), > + SUNXI_FUNCTION(0x0, "gpio_in"), > + SUNXI_FUNCTION(0x1, "gpio_out"), > + SUNXI_FUNCTION(0x2, "mmc1"), /* D1 */ > + SUNXI_FUNCTION_IRQ_BANK(0x6, 1, 3)), /* EINT3 */ > + SUNXI_PIN(SUNXI_PINCTRL_PIN(G, 4), > + SUNXI_FUNCTION(0x0, "gpio_in"), > + SUNXI_FUNCTION(0x1, "gpio_out"), > + SUNXI_FUNCTION(0x2, "mmc1"), /* D2 */ > + SUNXI_FUNCTION_IRQ_BANK(0x6, 1, 4)), /* EINT4 */ > + SUNXI_PIN(SUNXI_PINCTRL_PIN(G, 5), > + SUNXI_FUNCTION(0x0, "gpio_in"), > + SUNXI_FUNCTION(0x1, "gpio_out"), > + SUNXI_FUNCTION(0x2, "mmc1"), /* D3 */ > + SUNXI_FUNCTION_IRQ_BANK(0x6, 1, 5)), /* EINT5 */ > + SUNXI_PIN(SUNXI_PINCTRL_PIN(G, 6), > + SUNXI_FUNCTION(0x0, "gpio_in"), > + SUNXI_FUNCTION(0x1, "gpio_out"), > + SUNXI_FUNCTION(0x2, "uart1"), /* TX */ > + SUNXI_FUNCTION_IRQ_BANK(0x6, 1, 6)), /* EINT6 */ > + SUNXI_PIN(SUNXI_PINCTRL_PIN(G, 7), > + SUNXI_FUNCTION(0x0, "gpio_in"), > + SUNXI_FUNCTION(0x1, "gpio_out"), > + SUNXI_FUNCTION(0x2, "uart1"), /* RX */ > + SUNXI_FUNCTION_IRQ_BANK(0x6, 1, 7)), /* EINT7 */ > + SUNXI_PIN(SUNXI_PINCTRL_PIN(G, 8), > + SUNXI_FUNCTION(0x0, "gpio_in"), > + SUNXI_FUNCTION(0x1, "gpio_out"), > + SUNXI_FUNCTION(0x2, "uart1"), /* RTS */ > + SUNXI_FUNCTION_IRQ_BANK(0x6, 1, 8)), /* EINT8 */ > + SUNXI_PIN(SUNXI_PINCTRL_PIN(G, 9), > + SUNXI_FUNCTION(0x0, "gpio_in"), > + SUNXI_FUNCTION(0x1, "gpio_out"), > + SUNXI_FUNCTION(0x2, "uart1"), /* CTS */ > + SUNXI_FUNCTION_IRQ_BANK(0x6, 1, 9)), /* EINT9 */ > + SUNXI_PIN(SUNXI_PINCTRL_PIN(G, 10), > + SUNXI_FUNCTION(0x0, "gpio_in"), > + SUNXI_FUNCTION(0x1, "gpio_out"), > + SUNXI_FUNCTION(0x2, "aif3"), /* SYNC */ > + SUNXI_FUNCTION(0x3, "i2s1"), /* SYNC */ > + SUNXI_FUNCTION_IRQ_BANK(0x6, 1, 10)), /* EINT10 */ > + SUNXI_PIN(SUNXI_PINCTRL_PIN(G, 11), > + SUNXI_FUNCTION(0x0, "gpio_in"), > + SUNXI_FUNCTION(0x1, "gpio_out"), > + SUNXI_FUNCTION(0x2, "aif3"), /* BCLK */ > + SUNXI_FUNCTION(0x3, "i2s1"), /* BCLK */ > + SUNXI_FUNCTION_IRQ_BANK(0x6, 1, 11)), /* EINT11 */ > + SUNXI_PIN(SUNXI_PINCTRL_PIN(G, 12), > + SUNXI_FUNCTION(0x0, "gpio_in"), > + SUNXI_FUNCTION(0x1, "gpio_out"), > + SUNXI_FUNCTION(0x2, "aif3"), /* DOUT */ > + SUNXI_FUNCTION(0x3, "i2s1"), /* DOUT */ > + SUNXI_FUNCTION_IRQ_BANK(0x6, 1, 12)), /* EINT12 */ > + SUNXI_PIN(SUNXI_PINCTRL_PIN(G, 13), > + SUNXI_FUNCTION(0x0, "gpio_in"), > + SUNXI_FUNCTION(0x1, "gpio_out"), > + SUNXI_FUNCTION(0x2, "aif3"), /* DIN */ > + SUNXI_FUNCTION(0x3, "i2s1"), /* DIN */ > + SUNXI_FUNCTION_IRQ_BANK(0x6, 1, 13)), /* EINT13 */ > + /* Hole */ > + SUNXI_PIN(SUNXI_PINCTRL_PIN(H, 0), > + SUNXI_FUNCTION(0x0, "gpio_in"), > + SUNXI_FUNCTION(0x1, "gpio_out"), > + SUNXI_FUNCTION(0x2, "i2c0"), /* SCK */ > + SUNXI_FUNCTION_IRQ_BANK(0x6, 2, 0)), /* EINT0 */ > + SUNXI_PIN(SUNXI_PINCTRL_PIN(H, 1), > + SUNXI_FUNCTION(0x0, "gpio_in"), > + SUNXI_FUNCTION(0x1, "gpio_out"), > + SUNXI_FUNCTION(0x2, "i2c0"), /* SDA */ > + SUNXI_FUNCTION_IRQ_BANK(0x6, 2, 1)), /* EINT1 */ > + SUNXI_PIN(SUNXI_PINCTRL_PIN(H, 2), > + SUNXI_FUNCTION(0x0, "gpio_in"), > + SUNXI_FUNCTION(0x1, "gpio_out"), > + SUNXI_FUNCTION(0x2, "i2c1"), /* SCK */ > + SUNXI_FUNCTION_IRQ_BANK(0x6, 2, 2)), /* EINT2 */ > + SUNXI_PIN(SUNXI_PINCTRL_PIN(H, 3), > + SUNXI_FUNCTION(0x0, "gpio_in"), > + SUNXI_FUNCTION(0x1, "gpio_out"), > + SUNXI_FUNCTION(0x2, "i2c1"), /* SDA */ > + SUNXI_FUNCTION_IRQ_BANK(0x6, 2, 3)), /* EINT3 */ > + SUNXI_PIN(SUNXI_PINCTRL_PIN(H, 4), > + SUNXI_FUNCTION(0x0, "gpio_in"), > + SUNXI_FUNCTION(0x1, "gpio_out"), > + SUNXI_FUNCTION(0x2, "uart3"), /* TX */ > + SUNXI_FUNCTION_IRQ_BANK(0x6, 2, 4)), /* EINT4 */ > + SUNXI_PIN(SUNXI_PINCTRL_PIN(H, 5), > + SUNXI_FUNCTION(0x0, "gpio_in"), > + SUNXI_FUNCTION(0x1, "gpio_out"), > + SUNXI_FUNCTION(0x2, "uart3"), /* RX */ > + SUNXI_FUNCTION_IRQ_BANK(0x6, 2, 5)), /* EINT5 */ > + SUNXI_PIN(SUNXI_PINCTRL_PIN(H, 6), > + SUNXI_FUNCTION(0x0, "gpio_in"), > + SUNXI_FUNCTION(0x1, "gpio_out"), > + SUNXI_FUNCTION(0x2, "uart3"), /* RTS */ > + SUNXI_FUNCTION_IRQ_BANK(0x6, 2, 6)), /* EINT6 */ > + SUNXI_PIN(SUNXI_PINCTRL_PIN(H, 7), > + SUNXI_FUNCTION(0x0, "gpio_in"), > + SUNXI_FUNCTION(0x1, "gpio_out"), > + SUNXI_FUNCTION(0x2, "uart3"), /* CTS */ > + SUNXI_FUNCTION_IRQ_BANK(0x6, 2, 7)), /* EINT7 */ > + SUNXI_PIN(SUNXI_PINCTRL_PIN(H, 8), > + SUNXI_FUNCTION(0x0, "gpio_in"), > + SUNXI_FUNCTION(0x1, "gpio_out"), > + SUNXI_FUNCTION(0x2, "spdif"), /* OUT */ > + SUNXI_FUNCTION_IRQ_BANK(0x6, 2, 8)), /* EINT8 */ > + SUNXI_PIN(SUNXI_PINCTRL_PIN(H, 9), > + SUNXI_FUNCTION(0x0, "gpio_in"), > + SUNXI_FUNCTION(0x1, "gpio_out"), > + SUNXI_FUNCTION_IRQ_BANK(0x6, 2, 9)), /* EINT9 */ > + SUNXI_PIN(SUNXI_PINCTRL_PIN(H, 10), > + SUNXI_FUNCTION(0x0, "gpio_in"), > + SUNXI_FUNCTION(0x1, "gpio_out"), > + SUNXI_FUNCTION(0x2, "mic"), /* CLK */ > + SUNXI_FUNCTION_IRQ_BANK(0x6, 2, 10)), /* EINT10 */ > + SUNXI_PIN(SUNXI_PINCTRL_PIN(H, 11), > + SUNXI_FUNCTION(0x0, "gpio_in"), > + SUNXI_FUNCTION(0x1, "gpio_out"), > + SUNXI_FUNCTION(0x2, "mic"), /* DATA */ > + SUNXI_FUNCTION_IRQ_BANK(0x6, 2, 11)), /* EINT11 */ > +}; > + > +static const struct sunxi_pinctrl_desc a64_pinctrl_data = { > + .pins = a64_pins, > + .npins = ARRAY_SIZE(a64_pins), > +}; > + > +static const struct of_device_id a64_pinctrl_dt_match[] = { > + { > + .compatible = "allwinner,sun50i-a64-pinctrl", > + .data = &a64_pinctrl_data > + }, { > + /* sentinel */ > + } > +}; > + > +static struct driver a64_pinctrl_driver = { > + .name = "sun50i-a64-pinctrl", > + .probe = sunxi_pinctrl_probe, > + .of_compatible = DRV_OF_COMPAT(a64_pinctrl_dt_match), > +}; > +core_platform_driver(a64_pinctrl_driver); > diff --git a/drivers/pinctrl/sunxi/pinctrl-sunxi.c > b/drivers/pinctrl/sunxi/pinctrl-sunxi.c > new file mode 100644 > index 0000000000..e2bde96c70 > --- /dev/null > +++ b/drivers/pinctrl/sunxi/pinctrl-sunxi.c > @@ -0,0 +1,371 @@ > +// SPDX-License-Identifier: GPL-2.0-only > + > +#define pr_fmt(fmt) "pinctrl-sunxi: " fmt > + > +#include <common.h> > +#include <io.h> > +#include <of.h> > +#include <of_address.h> > +#include <malloc.h> > +#include <linux/clk.h> > + > +#include "pinctrl-sunxi.h" > + > +/* This driver assumes the gpio function mux value will not change */ > +#define FUNC_GPIO_IN 0 > +#define FUNC_GPIO_OUT 1 > + > +static struct sunxi_pinctrl *to_sunxi_pinctrl(struct pinctrl_device *pdev) > +{ > + return container_of(pdev, struct sunxi_pinctrl, pdev); > +} > + > +static void sunxi_pinctrl_set_pull(struct sunxi_pinctrl *pinctrl, > + u16 pin, u32 pull) > +{ > + u32 reg = sunxi_pull_reg(pin); > + u32 off = sunxi_pull_offset(pin); > + u32 msk = MUX_PINS_MASK << off; > + u32 val = readl(pinctrl->base + reg); > + > + val &= ~msk; > + val |= (pull << off) & msk; > + writel(val, pinctrl->base + reg); > +} > + > +static void sunxi_pinctrl_set_dlevel(struct sunxi_pinctrl *pinctrl, > + u16 pin, u32 lvl) > +{ > + u32 reg = sunxi_dlevel_reg(pin); > + u32 off = sunxi_dlevel_offset(pin); > + u32 msk = MUX_PINS_MASK << off; > + u32 val = readl(pinctrl->base + reg); > + > + val &= ~msk; > + val |= (lvl << off) & msk; > + writel(val, pinctrl->base + reg); > +} > + > +static void sunxi_pinctrl_set_mux(struct sunxi_pinctrl *pinctrl, > + u16 pin, u8 mux) > +{ > + u32 reg = sunxi_mux_reg(pin); > + u32 off = sunxi_mux_offset(pin); > + u32 msk = MUX_PINS_MASK << off; > + u32 val = readl(pinctrl->base + reg); > + > + val &= ~msk; > + val |= (mux << off) & msk; > + writel(val, pinctrl->base + reg); > +} > + > +static u8 sunxi_pinctrl_get_mux(struct sunxi_pinctrl *pinctrl, u16 pin) > +{ > + u32 reg = sunxi_mux_reg(pin); > + u32 off = sunxi_mux_offset(pin); > + u32 val = readl(pinctrl->base + reg); > + > + return (val >> off) & MUX_PINS_MASK; > +} > + > +static void sunxi_pinctrl_set_conf(struct sunxi_pinctrl *pinctrl, > + u16 pin, struct device_node *node) > +{ > + u32 val; > + > + if (of_find_property(node, "bias-pull-up", NULL)) > + sunxi_pinctrl_set_pull(pinctrl, pin, 1); > + if (of_find_property(node, "bias-pull-down", NULL)) > + sunxi_pinctrl_set_pull(pinctrl, pin, 2); > + if (of_find_property(node, "bias-disable", NULL)) > + sunxi_pinctrl_set_pull(pinctrl, pin, 0); > + > + if (!of_property_read_u32(node, "drive-strength", &val)) { > + val = rounddown(val, 10) / 10 - 1; > + sunxi_pinctrl_set_dlevel(pinctrl, pin, val); > + } > +} > + > +static const char *sunxi_pinctrl_parse_function_prop(struct device_node > *node) > +{ > + const char *function; > + int ret; > + > + /* Try the generic binding */ > + ret = of_property_read_string(node, "function", &function); > + if (!ret) > + return function; > + > + /* And fall back to our legacy one */ > + ret = of_property_read_string(node, "allwinner,function", &function); > + if (!ret) > + return function; > + > + return NULL; > +} > + > +static struct property *sunxi_pinctrl_find_pins_prop(struct device_node > *node) > +{ > + struct property *prop; > + > + /* Try the generic binding */ > + prop = of_find_property(node, "pins", NULL); > + if (prop) > + return prop; > + > + /* And fall back to our legacy one */ > + prop = of_find_property(node, "allwinner,pins", NULL); > + if (prop) > + return prop; > + > + return NULL; > +} > + > +#define sunxi_pinctrl_of_pins_for_each_string(np, prop, s) \ > + for (prop = sunxi_pinctrl_find_pins_prop(np), \ > + s = of_prop_next_string(prop, NULL); \ > + s; \ > + s = of_prop_next_string(prop, s)) > + > + > +static const struct sunxi_desc_pin * > +sunxi_pinctrl_find_pin(struct sunxi_pinctrl *pinctrl, const char *pin_name) > +{ > + const struct sunxi_desc_pin *pin; > + int i; > + > + for (i = 0; i < pinctrl->desc->npins; i++) { > + pin = &pinctrl->desc->pins[i]; > + if (!strcmp(pin->pin.name, pin_name)) > + return pin; > + } > + > + return NULL; > +} > + > +static const struct sunxi_desc_function * > +sunxi_pinctrl_find_func(struct sunxi_pinctrl *pinctrl, > + const char *pin_name, const char *func_name) > +{ > + const struct sunxi_desc_pin *pin; > + const struct sunxi_desc_function *func; > + > + pin = sunxi_pinctrl_find_pin(pinctrl, pin_name); > + if (!pin) > + return NULL; > + > + for (func = pin->functions; func->name; func++) > + if (!strcmp(func->name, func_name)) > + return func; > + > + return NULL; > +} > + > +static int sunxi_pinctrl_set_func(struct sunxi_pinctrl *pinctrl, > + struct device_node *np, > + const char *pin_name, const char *func_name) > +{ > + struct device *dev = pinctrl->pdev.dev; > + const struct sunxi_desc_pin *pin; > + const struct sunxi_desc_function *func; > + > + dev_dbg(dev, "setfunc %s @ %s\n", func_name, pin_name); > + > + pin = sunxi_pinctrl_find_pin(pinctrl, pin_name); > + if (!pin) { > + dev_err(dev, "pin %s not found\n", pin_name); > + return -EINVAL; > + } > + > + func = sunxi_pinctrl_find_func(pinctrl, pin_name, func_name); > + if (!func) { > + dev_err(dev, "func %s not found\n", func_name); > + return -EINVAL; > + } > + > + sunxi_pinctrl_set_mux(pinctrl, pin->pin.number, func->muxval); > + sunxi_pinctrl_set_conf(pinctrl, pin->pin.number, np); > + > + return 0; > +} > + > +static int sunxi_pinctrl_set_state(struct pinctrl_device *pdev, struct > device_node *np) > +{ > + struct sunxi_pinctrl *pinctrl = to_sunxi_pinctrl(pdev); > + struct device *dev = pinctrl->pdev.dev; > + struct property *prop; > + const char *func_name; > + const char *pin_name; > + > + func_name = sunxi_pinctrl_parse_function_prop(np); > + if (!func_name) { > + dev_err(dev, "%s: missing 'function' property\n", > np->full_name); > + return -EINVAL; > + } > + > + sunxi_pinctrl_of_pins_for_each_string(np, prop, pin_name) { > + sunxi_pinctrl_set_func(pinctrl, np, pin_name, func_name); > + } > + > + return 0; > +} > + > +static int sunxi_pinctrl_set_direction(struct pinctrl_device *pdev, unsigned > int gpio, bool in) > +{ > + struct sunxi_pinctrl *pinctrl = to_sunxi_pinctrl(pdev); > + u32 func = in ? FUNC_GPIO_IN : FUNC_GPIO_OUT; > + > + sunxi_pinctrl_set_mux(pinctrl, gpio, func); > + > + return 0; > +} > + > +static int sunxi_gpio_get(struct gpio_chip *chip, unsigned gpio) > +{ > + struct sunxi_pinctrl *pinctrl = chip->dev->priv; > + u32 reg = sunxi_data_reg(gpio); > + u32 bit = sunxi_data_offset(gpio); > + u32 val = readl(pinctrl->base + reg); > + > + return val & BIT(bit); > +} > + > +static void sunxi_gpio_set(struct gpio_chip *chip, unsigned gpio, int value) > +{ > + struct sunxi_pinctrl *pinctrl = chip->dev->priv; > + u32 reg = sunxi_data_reg(gpio); > + u32 bit = sunxi_data_offset(gpio); > + u32 val = readl(pinctrl->base + reg); > + > + if (value) > + val |= BIT(bit); > + else > + val &= ~BIT(bit); > + writel(val, pinctrl->base + reg); > +} > + > +static int sunxi_gpio_direction_output(struct gpio_chip *chip, > + unsigned gpio, int value) > +{ > + struct sunxi_pinctrl *pinctrl = chip->dev->priv; > + > + sunxi_gpio_set(chip, gpio, value); > + sunxi_pinctrl_set_mux(pinctrl, gpio, FUNC_GPIO_OUT); > + > + return 0; > +} > + > +static int sunxi_gpio_direction_input(struct gpio_chip *chip, > + unsigned gpio) > +{ > + struct sunxi_pinctrl *pinctrl = chip->dev->priv; > + > + sunxi_pinctrl_set_mux(pinctrl, gpio, FUNC_GPIO_IN); > + > + return 0; > +} > + > +static int sunxi_gpio_get_direction(struct gpio_chip *chip, unsigned gpio) > +{ > + struct sunxi_pinctrl *pinctrl = chip->dev->priv; > + u32 func = sunxi_pinctrl_get_mux(pinctrl, gpio); > + > + if (func == FUNC_GPIO_IN) > + return GPIOF_DIR_IN; > + if (func == FUNC_GPIO_OUT) > + return GPIOF_DIR_OUT; > + return -EINVAL; > +} > + > +static int sunxi_gpio_of_xlate(struct gpio_chip *chip, > + const struct of_phandle_args *gpiospec, > + u32 *flags) > +{ > + int pin, base; > + > + if (gpiospec->args_count != 3) > + return -EINVAL; > + > + base = PINS_PER_BANK * gpiospec->args[0]; > + pin = base + gpiospec->args[1]; > + > + if (pin > chip->ngpio) > + return -EINVAL; > + > + if (flags) > + *flags = gpiospec->args[2]; > + > + return pin; > +} > + > +static struct pinctrl_ops sunxi_pinctrl_ops = { > + .set_state = sunxi_pinctrl_set_state, > + .set_direction = sunxi_pinctrl_set_direction, > +}; > + > +static struct gpio_ops sunxi_gpio_ops = { > + .request = sunxi_gpio_direction_input, /* switch to input function */ > + .direction_input = sunxi_gpio_direction_input, > + .direction_output = sunxi_gpio_direction_output, > + .get_direction = sunxi_gpio_get_direction, > + .get = sunxi_gpio_get, > + .set = sunxi_gpio_set, > + .of_xlate = sunxi_gpio_of_xlate, > +}; > + > +int sunxi_pinctrl_probe(struct device *dev) > +{ > + const struct sunxi_pinctrl_desc *desc; > + struct sunxi_pinctrl *pinctrl; > + struct resource *iores; > + int ret; > + > + if (!IS_ENABLED(CONFIG_PINCTRL)) > + return 0; > + > + desc = device_get_match_data(dev); > + if (!desc) > + return -EINVAL; > + > + iores = dev_request_mem_resource(dev, 0); > + if (IS_ERR(iores)) > + return PTR_ERR(iores); > + > + pinctrl = xzalloc(sizeof(*pinctrl)); > + dev->priv = pinctrl; > + pinctrl->base = IOMEM(iores->start); > + > + pinctrl->desc = desc; > + pinctrl->pdev.dev = dev; > + pinctrl->pdev.ops = &sunxi_pinctrl_ops; > + > + ret = pinctrl_register(&pinctrl->pdev); > + if (ret) { > + dev_err(dev, "couldn't register %s driver\n", "pinctrl"); > + goto err; > + } > + dev_dbg(dev, "sunxi %s registered\n", "pinctrl"); > + > + pinctrl->chip.dev = dev; > + pinctrl->chip.ops = &sunxi_gpio_ops; > + /* only the first 8 bank are supported */ > + pinctrl->chip.base = 0; > + pinctrl->chip.ngpio = 8 * PINS_PER_BANK; > + > + if (of_property_read_bool(dev->of_node, "gpio-controller")) { > + ret = gpiochip_add(&pinctrl->chip); > + if (ret) { > + dev_err(dev, "couldn't register %s driver\n", > "gpio-chip"); > + goto pinctrl_unregister; > + } > + dev_dbg(dev, "sunxi %s registered\n", "gpio-chip"); > + } > + return 0; > + > +pinctrl_unregister: > + pinctrl_unregister(&pinctrl->pdev); > +err: > + release_region(iores); > + free(pinctrl); > + return ret; > +} > diff --git a/drivers/pinctrl/sunxi/pinctrl-sunxi.h > b/drivers/pinctrl/sunxi/pinctrl-sunxi.h > new file mode 100644 > index 0000000000..630f1ef98e > --- /dev/null > +++ b/drivers/pinctrl/sunxi/pinctrl-sunxi.h > @@ -0,0 +1,224 @@ > +/* SPDX-License-Identifier: GPL-2.0-only */ > +/* > + * Allwinner A1X SoCs pinctrl driver. > + * > + * Copyright (C) 2012 Maxime Ripard > + * > + * Maxime Ripard <[email protected]> > + * > + * 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. > + */ > + > +#ifndef __PINCTRL_SUNXI_H > +#define __PINCTRL_SUNXI_H > + > +#include <pinctrl.h> > +#include <gpio.h> > + > +#define PA_BASE 0 > +#define PB_BASE 32 > +#define PC_BASE 64 > +#define PD_BASE 96 > +#define PE_BASE 128 > +#define PF_BASE 160 > +#define PG_BASE 192 > +#define PH_BASE 224 > +#define PI_BASE 256 > +#define PL_BASE 352 > +#define PM_BASE 384 > +#define PN_BASE 416 > + > +#define SUNXI_PIN_NAME_MAX_LEN 5 > + > +#define BANK_MEM_SIZE 0x24 > +#define MUX_REGS_OFFSET 0x0 > +#define DATA_REGS_OFFSET 0x10 > +#define DLEVEL_REGS_OFFSET 0x14 > +#define PULL_REGS_OFFSET 0x1c > + > +#define PINS_PER_BANK 32 > +#define MUX_PINS_PER_REG 8 > +#define MUX_PINS_BITS 4 > +#define MUX_PINS_MASK 0x0f > +#define DATA_PINS_PER_REG 32 > +#define DATA_PINS_BITS 1 > +#define DATA_PINS_MASK 0x01 > +#define DLEVEL_PINS_PER_REG 16 > +#define DLEVEL_PINS_BITS 2 > +#define DLEVEL_PINS_MASK 0x03 > +#define PULL_PINS_PER_REG 16 > +#define PULL_PINS_BITS 2 > +#define PULL_PINS_MASK 0x03 > + > +#define GRP_CFG_REG 0x300 > + > +#define IO_BIAS_MASK GENMASK(3, 0) > + > +#define SUN4I_FUNC_INPUT 0 > +#define SUN4I_FUNC_IRQ 6 > + > +#define PINCTRL_SUN5I_A10S BIT(1) > +#define PINCTRL_SUN5I_A13 BIT(2) > +#define PINCTRL_SUN5I_GR8 BIT(3) > +#define PINCTRL_SUN6I_A31 BIT(4) > +#define PINCTRL_SUN6I_A31S BIT(5) > +#define PINCTRL_SUN4I_A10 BIT(6) > +#define PINCTRL_SUN7I_A20 BIT(7) > +#define PINCTRL_SUN8I_R40 BIT(8) > +#define PINCTRL_SUN8I_V3 BIT(9) > +#define PINCTRL_SUN8I_V3S BIT(10) > + > +#define PIO_POW_MOD_SEL_REG 0x340 > + > +enum sunxi_desc_bias_voltage { > + BIAS_VOLTAGE_NONE, > + /* > + * Bias voltage configuration is done through > + * Pn_GRP_CONFIG registers, as seen on A80 SoC. > + */ > + BIAS_VOLTAGE_GRP_CONFIG, > + /* > + * Bias voltage is set through PIO_POW_MOD_SEL_REG > + * register, as seen on H6 SoC, for example. > + */ > + BIAS_VOLTAGE_PIO_POW_MODE_SEL, > +}; > + > +struct sunxi_desc_function { > + const char *name; > + u8 muxval; > +}; > + > +struct sunxi_desc_pin { > + struct { > + const char name[6]; > + u16 number; > + } pin; > + const struct sunxi_desc_function *functions; > +}; > + > +struct sunxi_pinctrl_desc { > + const struct sunxi_desc_pin *pins; > + size_t npins; > + unsigned pin_base; > + bool disable_strict_mode; > + enum sunxi_desc_bias_voltage io_bias_cfg_variant; > +}; > + > +struct sunxi_pinctrl { > + void __iomem *base; > + struct gpio_chip chip; > + struct pinctrl_device pdev; > + const struct sunxi_pinctrl_desc *desc; > +}; > + > +#define SUNXI_PIN(_pin, ...) \ > + { \ > + .pin = _pin, \ > + .functions = (struct sunxi_desc_function[]){ \ > + __VA_ARGS__, { } }, \ > + } > + > +#define SUNXI_PINCTRL_PIN(bank, pin) \ > + { \ > + .name = "P" #bank #pin, \ > + .number = P ## bank ## _BASE + (pin) \ > + } > + > +#define SUNXI_FUNCTION(_val, _name) \ > + { \ > + .name = _name, \ > + .muxval = _val, \ > + } > + > +#define SUNXI_FUNCTION_IRQ_BANK(...) {} > + > +/* > + * The sunXi PIO registers are organized as is: > + * 0x00 - 0x0c Muxing values. > + * 8 pins per register, each pin having a 4bits value > + * 0x10 Pin values > + * 32 bits per register, each pin corresponding to one bit > + * 0x14 - 0x18 Drive level > + * 16 pins per register, each pin having a 2bits value > + * 0x1c - 0x20 Pull-Up values > + * 16 pins per register, each pin having a 2bits value > + * > + * This is for the first bank. Each bank will have the same layout, > + * with an offset being a multiple of 0x24. > + * > + * The following functions calculate from the pin number the register > + * and the bit offset that we should access. > + */ > +static inline u32 sunxi_mux_reg(u16 pin) > +{ > + u8 bank = pin / PINS_PER_BANK; > + u32 offset = bank * BANK_MEM_SIZE; > + offset += MUX_REGS_OFFSET; > + offset += pin % PINS_PER_BANK / MUX_PINS_PER_REG * 0x04; > + return round_down(offset, 4); > +} > + > +static inline u32 sunxi_mux_offset(u16 pin) > +{ > + u32 pin_num = pin % MUX_PINS_PER_REG; > + return pin_num * MUX_PINS_BITS; > +} > + > +static inline u32 sunxi_data_reg(u16 pin) > +{ > + u8 bank = pin / PINS_PER_BANK; > + u32 offset = bank * BANK_MEM_SIZE; > + offset += DATA_REGS_OFFSET; > + offset += pin % PINS_PER_BANK / DATA_PINS_PER_REG * 0x04; > + return round_down(offset, 4); > +} > + > +static inline u32 sunxi_data_offset(u16 pin) > +{ > + u32 pin_num = pin % DATA_PINS_PER_REG; > + return pin_num * DATA_PINS_BITS; > +} > + > +static inline u32 sunxi_dlevel_reg(u16 pin) > +{ > + u8 bank = pin / PINS_PER_BANK; > + u32 offset = bank * BANK_MEM_SIZE; > + offset += DLEVEL_REGS_OFFSET; > + offset += pin % PINS_PER_BANK / DLEVEL_PINS_PER_REG * 0x04; > + return round_down(offset, 4); > +} > + > +static inline u32 sunxi_dlevel_offset(u16 pin) > +{ > + u32 pin_num = pin % DLEVEL_PINS_PER_REG; > + return pin_num * DLEVEL_PINS_BITS; > +} > + > +static inline u32 sunxi_pull_reg(u16 pin) > +{ > + u8 bank = pin / PINS_PER_BANK; > + u32 offset = bank * BANK_MEM_SIZE; > + offset += PULL_REGS_OFFSET; > + offset += pin % PINS_PER_BANK / PULL_PINS_PER_REG * 0x04; > + return round_down(offset, 4); > +} > + > +static inline u32 sunxi_pull_offset(u16 pin) > +{ > + u32 pin_num = pin % PULL_PINS_PER_REG; > + return pin_num * PULL_PINS_BITS; > +} > + > +static inline u32 sunxi_grp_config_reg(u16 pin) > +{ > + u8 bank = pin / PINS_PER_BANK; > + > + return GRP_CFG_REG + bank * 0x4; > +} > + > +int sunxi_pinctrl_probe(struct device *dev); > + > +#endif /* __PINCTRL_SUNXI_H */ -- Pengutronix e.K. | | Steuerwalder Str. 21 | http://www.pengutronix.de/ | 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 | Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 |
