blob: 36095b2a923a6584cafe7a097d8867368d76329c [file] [log] [blame]
/*
* Copyright (c) 2019, NXP
* SPDX-License-Identifier: Apache-2.0
*/
#include <zephyr/init.h>
#include <zephyr/devicetree.h>
#include <fsl_common.h>
#include <fsl_iocon.h>
#include <soc.h>
static int lpcxpresso_55s69_pinmux_init(void)
{
#if (DT_NODE_HAS_COMPAT_STATUS(DT_NODELABEL(flexcomm6), nxp_lpc_i2s, okay)) && \
(DT_NODE_HAS_COMPAT_STATUS(DT_NODELABEL(flexcomm7), nxp_lpc_i2s, okay)) && \
CONFIG_I2S
/*
* Flexcomm 6 and 7 are connected to codec on board, and shared signal
* sets are used to enable one I2S device to handle RX and one to handle
* TX
*/
CLOCK_EnableClock(kCLOCK_Sysctl);
/* Set shared signal set 0 SCK, WS from Transmit I2S - Flexcomm 7 */
SYSCTL->SHAREDCTRLSET[0] = SYSCTL_SHAREDCTRLSET_SHAREDSCKSEL(7) |
SYSCTL_SHAREDCTRLSET_SHAREDWSSEL(7);
#ifdef CONFIG_I2S_TEST_SEPARATE_DEVICES
/* Select Data in from Transmit I2S - Flexcomm 7 */
SYSCTL->SHAREDCTRLSET[0] |= SYSCTL_SHAREDCTRLSET_SHAREDDATASEL(7);
/* Enable Transmit I2S - Flexcomm 7 for Shared Data Out */
SYSCTL->SHAREDCTRLSET[0] |= SYSCTL_SHAREDCTRLSET_FC7DATAOUTEN(1);
#endif
/* Set Receive I2S - Flexcomm 6 SCK, WS from shared signal set 0 */
SYSCTL->FCCTRLSEL[6] = SYSCTL_FCCTRLSEL_SCKINSEL(1) |
SYSCTL_FCCTRLSEL_WSINSEL(1);
/* Set Transmit I2S - Flexcomm 7 SCK, WS from shared signal set 0 */
SYSCTL->FCCTRLSEL[7] = SYSCTL_FCCTRLSEL_SCKINSEL(1) |
SYSCTL_FCCTRLSEL_WSINSEL(1);
#ifdef CONFIG_I2S_TEST_SEPARATE_DEVICES
/* Select Receive I2S - Flexcomm 6 Data in from shared signal set 0 */
SYSCTL->FCCTRLSEL[6] |= SYSCTL_FCCTRLSEL_DATAINSEL(1);
/* Select Transmit I2S - Flexcomm 7 Data out to shared signal set 0 */
SYSCTL->FCCTRLSEL[7] |= SYSCTL_FCCTRLSEL_DATAOUTSEL(1);
#endif
#endif
return 0;
}
SYS_INIT(lpcxpresso_55s69_pinmux_init, PRE_KERNEL_1, 0);