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146 lines
3.9 KiB
146 lines
3.9 KiB
// SPDX-License-Identifier: GPL-2.0+ |
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/* |
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* Copyright (C) 2015 Masahiro Yamada <[email protected]> |
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*/ |
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/* #define DEBUG */ |
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#include <common.h> |
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#include <dm.h> |
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#include <dm/pinctrl.h> |
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static const char * const sandbox_pins[] = { |
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"SCL", |
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"SDA", |
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"TX", |
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"RX", |
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}; |
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static const char * const sandbox_groups[] = { |
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"i2c", |
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"serial_a", |
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"serial_b", |
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"spi", |
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}; |
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static const char * const sandbox_functions[] = { |
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"i2c", |
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"serial", |
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"spi", |
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}; |
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static const struct pinconf_param sandbox_conf_params[] = { |
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{ "bias-disable", PIN_CONFIG_BIAS_DISABLE, 0 }, |
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{ "bias-high-impedance", PIN_CONFIG_BIAS_HIGH_IMPEDANCE, 0 }, |
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{ "bias-bus-hold", PIN_CONFIG_BIAS_BUS_HOLD, 0 }, |
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{ "bias-pull-up", PIN_CONFIG_BIAS_PULL_UP, 1 }, |
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{ "bias-pull-down", PIN_CONFIG_BIAS_PULL_DOWN, 1 }, |
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{ "bias-pull-pin-default", PIN_CONFIG_BIAS_PULL_PIN_DEFAULT, 1 }, |
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{ "drive-open-drain", PIN_CONFIG_DRIVE_OPEN_DRAIN, 0 }, |
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{ "drive-open-source", PIN_CONFIG_DRIVE_OPEN_SOURCE, 0 }, |
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{ "drive-strength", PIN_CONFIG_DRIVE_STRENGTH, 0 }, |
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{ "input-enable", PIN_CONFIG_INPUT_ENABLE, 1 }, |
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{ "input-disable", PIN_CONFIG_INPUT_ENABLE, 0 }, |
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}; |
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static int sandbox_get_pins_count(struct udevice *dev) |
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{ |
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return ARRAY_SIZE(sandbox_pins); |
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} |
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static const char *sandbox_get_pin_name(struct udevice *dev, unsigned selector) |
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{ |
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return sandbox_pins[selector]; |
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} |
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static int sandbox_get_groups_count(struct udevice *dev) |
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{ |
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return ARRAY_SIZE(sandbox_groups); |
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} |
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static const char *sandbox_get_group_name(struct udevice *dev, |
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unsigned selector) |
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{ |
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return sandbox_groups[selector]; |
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} |
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static int sandbox_get_functions_count(struct udevice *dev) |
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{ |
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return ARRAY_SIZE(sandbox_functions); |
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} |
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static const char *sandbox_get_function_name(struct udevice *dev, |
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unsigned selector) |
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{ |
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return sandbox_functions[selector]; |
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} |
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static int sandbox_pinmux_set(struct udevice *dev, unsigned pin_selector, |
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unsigned func_selector) |
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{ |
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debug("sandbox pinmux: pin = %d (%s), function = %d (%s)\n", |
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pin_selector, sandbox_get_pin_name(dev, pin_selector), |
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func_selector, sandbox_get_function_name(dev, func_selector)); |
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return 0; |
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} |
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static int sandbox_pinmux_group_set(struct udevice *dev, |
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unsigned group_selector, |
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unsigned func_selector) |
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{ |
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debug("sandbox pinmux: group = %d (%s), function = %d (%s)\n", |
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group_selector, sandbox_get_group_name(dev, group_selector), |
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func_selector, sandbox_get_function_name(dev, func_selector)); |
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return 0; |
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} |
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static int sandbox_pinconf_set(struct udevice *dev, unsigned pin_selector, |
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unsigned param, unsigned argument) |
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{ |
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debug("sandbox pinconf: pin = %d (%s), param = %d, arg = %d\n", |
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pin_selector, sandbox_get_pin_name(dev, pin_selector), |
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param, argument); |
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return 0; |
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} |
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static int sandbox_pinconf_group_set(struct udevice *dev, |
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unsigned group_selector, |
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unsigned param, unsigned argument) |
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{ |
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debug("sandbox pinconf: group = %d (%s), param = %d, arg = %d\n", |
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group_selector, sandbox_get_group_name(dev, group_selector), |
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param, argument); |
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return 0; |
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} |
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const struct pinctrl_ops sandbox_pinctrl_ops = { |
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.get_pins_count = sandbox_get_pins_count, |
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.get_pin_name = sandbox_get_pin_name, |
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.get_groups_count = sandbox_get_groups_count, |
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.get_group_name = sandbox_get_group_name, |
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.get_functions_count = sandbox_get_functions_count, |
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.get_function_name = sandbox_get_function_name, |
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.pinmux_set = sandbox_pinmux_set, |
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.pinmux_group_set = sandbox_pinmux_group_set, |
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.pinconf_num_params = ARRAY_SIZE(sandbox_conf_params), |
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.pinconf_params = sandbox_conf_params, |
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.pinconf_set = sandbox_pinconf_set, |
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.pinconf_group_set = sandbox_pinconf_group_set, |
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.set_state = pinctrl_generic_set_state, |
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}; |
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static const struct udevice_id sandbox_pinctrl_match[] = { |
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{ .compatible = "sandbox,pinctrl" }, |
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{ /* sentinel */ } |
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}; |
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U_BOOT_DRIVER(sandbox_pinctrl) = { |
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.name = "sandbox_pinctrl", |
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.id = UCLASS_PINCTRL, |
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.of_match = sandbox_pinctrl_match, |
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.ops = &sandbox_pinctrl_ops, |
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};
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