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drivers: pinctrl: add TI CC32XX driver

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Add a new pinctrl driver for TI CC32XX SoC. The driver has not been
tested, just implemented following datasheet specs and checked that it
compiles. Consider this as a best-effort driver to remove custom pinmux
code in board files.

Signed-off-by: Gerard Marull-Paretas <gerard.marull@nordicsemi.no>
This commit is contained in:
Gerard Marull-Paretas 2023-06-12 13:41:32 +02:00 • committed by Anas Nashif
commit c0bc9f974f
9 changed files with 470 additions and 0 deletions
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1
soc/arm/ti_simplelink/cc32xx/CMakeLists.txt
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@ -1,6 +1,7 @@
# SPDX-License-Identifier: Apache-2.0
zephyr_sources(soc.c)
zephyr_include_directories(.)
if (DEFINED CONFIG_CC3220SF_DEBUG OR DEFINED CONFIG_CC3235SF_DEBUG)
zephyr_linker_sources(ROM_START SORT_KEY 0 cc32xx_debug.ld)

71
soc/arm/ti_simplelink/cc32xx/pinctrl_soc.h Normal file
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@ -0,0 +1,71 @@
/*
* Copyright (c) 2023 Nordic Semiconductor ASA
* SPDX-License-Identifier: Apache-2.0
*/
#ifndef ZEPHYR_SOC_ARM_TI_SIMPLELINK_CC32XX_PINCTRL_SOC_H_
#define ZEPHYR_SOC_ARM_TI_SIMPLELINK_CC32XX_PINCTRL_SOC_H_
#include <stdint.h>
#include <zephyr/devicetree.h>
#include <zephyr/sys/util.h>
#ifdef __cplusplus
extern "C" {
#endif
/** @cond INTERNAL_HIDDEN */
/** Type for TI CC32XX pin. */
typedef uint32_t pinctrl_soc_pin_t;
/**
* @name TI CC32XX pin configuration bit field positions and masks.
*/
#define TI_CC32XX_OPEN_DRAIN BIT(4)
#define TI_CC32XX_DRIVE_STRENGTH_MSK 0x7U
#define TI_CC32XX_DRIVE_STRENGTH_POS 5U
#define TI_CC32XX_PULL_UP BIT(8)
#define TI_CC32XX_PULL_DOWN BIT(9)
#define TI_CC32XX_PAD_OUT_OVERRIDE BIT(10)
#define TI_CC32XX_PAD_OUT_BUF_OVERRIDE BIT(11)
/** @} */
/**
* @brief Utility macro to initialize each pin.
*
* @param node_id Node identifier.
* @param prop Property name.
* @param idx Property entry index.
*/
#define Z_PINCTRL_STATE_PIN_INIT(node_id, prop, idx) \
(DT_PROP_BY_IDX(node_id, prop, idx) | \
(TI_CC32XX_OPEN_DRAIN * DT_PROP(node_id, drive_open_drain)) | \
(TI_CC32XX_PULL_UP * DT_PROP(node_id, bias_pull_down)) | \
(TI_CC32XX_PULL_DOWN * DT_PROP(node_id, bias_pull_up)) | \
((DT_ENUM_IDX(node_id, drive_strength) & TI_CC32XX_DRIVE_STRENGTH_MSK) \
<< TI_CC32XX_DRIVE_STRENGTH_POS) | \
TI_CC32XX_PAD_OUT_OVERRIDE | TI_CC32XX_PAD_OUT_BUF_OVERRIDE),
/**
* @brief Utility macro to initialize state pins contained in a given property.
*
* @param node_id Node identifier.
* @param prop Property name describing state pins.
*/
#define Z_PINCTRL_STATE_PINS_INIT(node_id, prop) \
{ \
DT_FOREACH_CHILD_VARGS(DT_PHANDLE(node_id, prop), DT_FOREACH_PROP_ELEM, pinmux, \
Z_PINCTRL_STATE_PIN_INIT) \
}
/** @endcond */
#ifdef __cplusplus
}
#endif
#endif /* ZEPHYR_SOC_ARM_TI_SIMPLELINK_CC32XX_PINCTRL_SOC_H_ */