7291450151
During the migration to Hw model V2 the PR #63495 was not fully reported. This change is adding the support Serial Wire / JTAG port pins Signed-off-by: Francois Ramu <francois.ramu@st.com>
41 lines
1 KiB
C
41 lines
1 KiB
C
/*
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* Copyright (c) 2023 STMicroelectronics
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include <zephyr/drivers/pinctrl.h>
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#include <zephyr/init.h>
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#define SWJ_NODE DT_NODELABEL(swj_port)
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PINCTRL_DT_DEFINE(SWJ_NODE);
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const struct pinctrl_dev_config *swj_pcfg = PINCTRL_DT_DEV_CONFIG_GET(SWJ_NODE);
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/*
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* Serial Wire / JTAG port pins are enabled as part of SoC default configuration.
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* When debug access is not needed and in case power consumption performance is
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* expected, configure matching pins to analog in order to save power.
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*/
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static int swj_to_analog(void)
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{
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int err;
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/* Set Serial Wire / JTAG port pins to analog mode */
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err = pinctrl_apply_state(swj_pcfg, PINCTRL_STATE_SLEEP);
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if (err < 0) {
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__ASSERT(0, "SWJ pinctrl setup failed");
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return err;
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}
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return 0;
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}
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/* Run this routine as the earliest pin configuration in the target,
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* to avoid potential conflicts with devices accessing SWJ-DG pins for
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* their own needs.
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*/
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SYS_INIT(swj_to_analog, PRE_KERNEL_1, CONFIG_SWJ_ANALOG_PRIORITY);
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