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- /*
- * 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,
- };
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