diff options
| -rw-r--r-- | arch/sandbox/dts/sandbox.dts | 19 | ||||
| -rw-r--r-- | configs/sandbox_defconfig | 3 | ||||
| -rw-r--r-- | drivers/pinctrl/Kconfig | 8 | ||||
| -rw-r--r-- | drivers/pinctrl/Makefile | 2 | ||||
| -rw-r--r-- | drivers/pinctrl/pinctrl-sandbox.c | 147 |
5 files changed, 179 insertions, 0 deletions
diff --git a/arch/sandbox/dts/sandbox.dts b/arch/sandbox/dts/sandbox.dts index 758c4a536c2..65b9125f5fc 100644 --- a/arch/sandbox/dts/sandbox.dts +++ b/arch/sandbox/dts/sandbox.dts @@ -92,6 +92,8 @@ reg = <0 0>; compatible = "sandbox,i2c"; clock-frequency = <400000>; + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_i2c0>; eeprom@2c { reg = <0x2c>; compatible = "i2c-eeprom"; @@ -136,6 +138,21 @@ }; }; + pinctrl { + compatible = "sandbox,pinctrl"; + + pinctrl_i2c0: i2c0 { + groups = "i2c"; + function = "i2c"; + bias-pull-up; + }; + + pinctrl_serial0: uart0 { + groups = "serial_a"; + function = "serial"; + }; + }; + spi@0 { #address-cells = <1>; #size-cells = <0>; @@ -172,6 +189,8 @@ uart0: serial { compatible = "sandbox,serial"; sandbox,text-colour = "cyan"; + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_serial0>; }; usb@0 { diff --git a/configs/sandbox_defconfig b/configs/sandbox_defconfig index 4034a2ea716..e9e1597f9ac 100644 --- a/configs/sandbox_defconfig +++ b/configs/sandbox_defconfig @@ -36,6 +36,9 @@ CONFIG_DM_TPM=y CONFIG_TPM_TIS_SANDBOX=y CONFIG_SYS_I2C_SANDBOX=y CONFIG_SANDBOX_SPI=y +CONFIG_PINCTRL=y +CONFIG_PINCONF=y +CONFIG_PINCTRL_SANDBOX=y CONFIG_SANDBOX_GPIO=y CONFIG_DM_PMIC=y CONFIG_DM_PMIC_SANDBOX=y diff --git a/drivers/pinctrl/Kconfig b/drivers/pinctrl/Kconfig index 6ac56ebe7d0..30b8e452efe 100644 --- a/drivers/pinctrl/Kconfig +++ b/drivers/pinctrl/Kconfig @@ -96,6 +96,14 @@ config SPL_PINCONF if PINCTRL || SPL_PINCTRL +config PINCTRL_SANDBOX + bool "Sandbox pinctrl driver" + depends on SANDBOX + help + This enables pinctrl driver for sandbox. Currently, this driver + actually does nothing but print debug messages when pinctrl + operations are invoked. + endif endmenu diff --git a/drivers/pinctrl/Makefile b/drivers/pinctrl/Makefile index a713c7db905..35decf49c32 100644 --- a/drivers/pinctrl/Makefile +++ b/drivers/pinctrl/Makefile @@ -1,2 +1,4 @@ obj-y += pinctrl-uclass.o obj-$(CONFIG_$(SPL_)PINCTRL_GENERIC) += pinctrl-generic.o + +obj-$(CONFIG_PINCTRL_SANDBOX) += pinctrl-sandbox.o diff --git a/drivers/pinctrl/pinctrl-sandbox.c b/drivers/pinctrl/pinctrl-sandbox.c new file mode 100644 index 00000000000..ab03d8bad4a --- /dev/null +++ b/drivers/pinctrl/pinctrl-sandbox.c @@ -0,0 +1,147 @@ +/* + * Copyright (C) 2015 Masahiro Yamada <yamada.masahiro@socionext.com> + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +/* #define DEBUG */ + +#include <common.h> +#include <dm/device.h> +#include <dm/pinctrl.h> + +static const char * const sandbox_pins[] = { + "SCL", + "SDA", + "TX", + "RX", +}; + +static const char * const sandbox_groups[] = { + "i2c", + "serial_a", + "serial_b", + "spi", +}; + +static const char * const sandbox_functions[] = { + "i2c", + "serial", + "spi", +}; + +static const struct pinconf_param sandbox_conf_params[] = { + { "bias-disable", PIN_CONFIG_BIAS_DISABLE, 0 }, + { "bias-high-impedance", PIN_CONFIG_BIAS_HIGH_IMPEDANCE, 0 }, + { "bias-bus-hold", PIN_CONFIG_BIAS_BUS_HOLD, 0 }, + { "bias-pull-up", PIN_CONFIG_BIAS_PULL_UP, 1 }, + { "bias-pull-down", PIN_CONFIG_BIAS_PULL_DOWN, 1 }, + { "bias-pull-pin-default", PIN_CONFIG_BIAS_PULL_PIN_DEFAULT, 1 }, + { "drive-open-drain", PIN_CONFIG_DRIVE_OPEN_DRAIN, 0 }, + { "drive-open-source", PIN_CONFIG_DRIVE_OPEN_SOURCE, 0 }, + { "drive-strength", PIN_CONFIG_DRIVE_STRENGTH, 0 }, + { "input-enable", PIN_CONFIG_INPUT_ENABLE, 1 }, + { "input-disable", PIN_CONFIG_INPUT_ENABLE, 0 }, +}; + +static int sandbox_get_pins_count(struct udevice *dev) +{ + return ARRAY_SIZE(sandbox_pins); +} + +static const char *sandbox_get_pin_name(struct udevice *dev, unsigned selector) +{ + return sandbox_pins[selector]; +} + +static int sandbox_get_groups_count(struct udevice *dev) +{ + return ARRAY_SIZE(sandbox_groups); +} + +static const char *sandbox_get_group_name(struct udevice *dev, + unsigned selector) +{ + return sandbox_groups[selector]; +} + +static int sandbox_get_functions_count(struct udevice *dev) +{ + return ARRAY_SIZE(sandbox_functions); +} + +static const char *sandbox_get_function_name(struct udevice *dev, + unsigned selector) +{ + return sandbox_functions[selector]; +} + +static int sandbox_pinmux_set(struct udevice *dev, unsigned pin_selector, + unsigned func_selector) +{ + debug("sandbox pinmux: pin = %d (%s), function = %d (%s)\n", + pin_selector, sandbox_get_pin_name(dev, pin_selector), + func_selector, sandbox_get_function_name(dev, func_selector)); + + return 0; +} + +static int sandbox_pinmux_group_set(struct udevice *dev, + unsigned group_selector, + unsigned func_selector) +{ + debug("sandbox pinmux: group = %d (%s), function = %d (%s)\n", + group_selector, sandbox_get_group_name(dev, group_selector), + func_selector, sandbox_get_function_name(dev, func_selector)); + + return 0; +} + +static int sandbox_pinconf_set(struct udevice *dev, unsigned pin_selector, + unsigned param, unsigned argument) +{ + debug("sandbox pinconf: pin = %d (%s), param = %d, arg = %d\n", + pin_selector, sandbox_get_pin_name(dev, pin_selector), + param, argument); + + return 0; +} + +static int sandbox_pinconf_group_set(struct udevice *dev, + unsigned group_selector, + unsigned param, unsigned argument) +{ + debug("sandbox pinconf: group = %d (%s), param = %d, arg = %d\n", + group_selector, sandbox_get_group_name(dev, group_selector), + param, argument); + + return 0; +} + +const struct pinctrl_ops sandbox_pinctrl_ops = { + .get_pins_count = sandbox_get_pins_count, + .get_pin_name = sandbox_get_pin_name, + .get_groups_count = sandbox_get_groups_count, + .get_group_name = sandbox_get_group_name, + .get_functions_count = sandbox_get_functions_count, + .get_function_name = sandbox_get_function_name, + .pinmux_set = sandbox_pinmux_set, + .pinmux_group_set = sandbox_pinmux_group_set, + .pinconf_num_params = ARRAY_SIZE(sandbox_conf_params), + .pinconf_params = sandbox_conf_params, + .pinconf_set = sandbox_pinconf_set, + .pinconf_group_set = sandbox_pinconf_group_set, + .set_state = pinctrl_generic_set_state, +}; + +static const struct udevice_id sandbox_pinctrl_match[] = { + { .compatible = "sandbox,pinctrl" }, + { /* sentinel */ } +}; + +U_BOOT_DRIVER(sandbox_pinctrl) = { + .name = "sandbox_pinctrl", + .id = UCLASS_PINCTRL, + .of_match = sandbox_pinctrl_match, + .ops = &sandbox_pinctrl_ops, +}; |