| /* |
| * Copyright (c) 2017, NXP |
| * |
| * SPDX-License-Identifier: Apache-2.0 |
| */ |
| |
| #include <zephyr/init.h> |
| #include <soc.h> |
| #include <zephyr/dt-bindings/rdc/imx_rdc.h> |
| #include <zephyr/devicetree.h> |
| #include "wdog_imx.h" |
| |
| /* Initialize clock. */ |
| void SOC_ClockInit(void) |
| { |
| /* OSC/PLL is already initialized by Cortex-A7 (u-boot) */ |
| |
| /* |
| * Disable WDOG3 |
| * Note : The WDOG clock Root is shared by all the 4 WDOGs, |
| * so Zephyr code should avoid closing it |
| */ |
| CCM_UpdateRoot(CCM, ccmRootWdog, ccmRootmuxWdogOsc24m, 0, 0); |
| CCM_EnableRoot(CCM, ccmRootWdog); |
| CCM_ControlGate(CCM, ccmCcgrGateWdog3, ccmClockNeededRun); |
| |
| RDC_SetPdapAccess(RDC, rdcPdapWdog3, |
| RDC_DOMAIN_PERM(M4_DOMAIN_ID, RDC_DOMAIN_PERM_RW), |
| false, false); |
| |
| WDOG_DisablePowerdown(WDOG3); |
| |
| CCM_ControlGate(CCM, ccmCcgrGateWdog3, ccmClockNotNeeded); |
| |
| /* We need system PLL Div2 to run M4 core */ |
| CCM_ControlGate(CCM, ccmPllGateSys, ccmClockNeededRun); |
| CCM_ControlGate(CCM, ccmPllGateSysDiv2, ccmClockNeededRun); |
| |
| /* Enable clock gate for IP bridge and IO mux */ |
| CCM_ControlGate(CCM, ccmCcgrGateIpmux1, ccmClockNeededRun); |
| CCM_ControlGate(CCM, ccmCcgrGateIpmux2, ccmClockNeededRun); |
| CCM_ControlGate(CCM, ccmCcgrGateIpmux3, ccmClockNeededRun); |
| CCM_ControlGate(CCM, ccmCcgrGateIomux, ccmClockNeededRun); |
| CCM_ControlGate(CCM, ccmCcgrGateIomuxLpsr, ccmClockNeededRun); |
| |
| /* Enable clock gate for RDC */ |
| CCM_ControlGate(CCM, ccmCcgrGateRdc, ccmClockNeededRun); |
| } |
| |
| void SOC_RdcInit(void) |
| { |
| /* Move M4 core to specific RDC domain */ |
| RDC_SetDomainID(RDC, rdcMdaM4, M4_DOMAIN_ID, false); |
| } |
| |
| #ifdef CONFIG_GPIO_IMX |
| static void nxp_mcimx7_gpio_config(void) |
| { |
| |
| #if DT_NODE_HAS_STATUS(DT_NODELABEL(gpio1), okay) |
| RDC_SetPdapAccess(RDC, rdcPdapGpio1, RDC_DT_VAL(gpio1), false, false); |
| /* Enable gpio clock gate */ |
| CCM_ControlGate(CCM, ccmCcgrGateGpio1, ccmClockNeededRunWait); |
| #endif |
| |
| |
| #if DT_NODE_HAS_STATUS(DT_NODELABEL(gpio2), okay) |
| RDC_SetPdapAccess(RDC, rdcPdapGpio2, RDC_DT_VAL(gpio2), false, false); |
| /* Enable gpio clock gate */ |
| CCM_ControlGate(CCM, ccmCcgrGateGpio2, ccmClockNeededRunWait); |
| #endif |
| |
| |
| #if DT_NODE_HAS_STATUS(DT_NODELABEL(gpio7), okay) |
| RDC_SetPdapAccess(RDC, rdcPdapGpio7, RDC_DT_VAL(gpio7), false, false); |
| /* Enable gpio clock gate */ |
| CCM_ControlGate(CCM, ccmCcgrGateGpio7, ccmClockNeededRunWait); |
| #endif |
| |
| } |
| #endif /* CONFIG_GPIO_IMX */ |
| |
| #ifdef CONFIG_UART_IMX |
| static void nxp_mcimx7_uart_config(void) |
| { |
| |
| #if DT_NODE_HAS_STATUS(DT_NODELABEL(uart2), okay) |
| /* We need to grasp board uart exclusively */ |
| RDC_SetPdapAccess(RDC, rdcPdapUart2, RDC_DT_VAL(uart2), false, false); |
| /* Select clock derived from OSC clock(24M) */ |
| CCM_UpdateRoot(CCM, ccmRootUart2, ccmRootmuxUartOsc24m, 0, 0); |
| /* Enable uart clock */ |
| CCM_EnableRoot(CCM, ccmRootUart2); |
| /* |
| * IC Limitation |
| * M4 stop will cause A7 UART lose functionality |
| * So we need UART clock all the time |
| */ |
| CCM_ControlGate(CCM, ccmCcgrGateUart2, ccmClockNeededAll); |
| #endif |
| |
| #if DT_NODE_HAS_STATUS(DT_NODELABEL(uart6), okay) |
| /* We need to grasp board uart exclusively */ |
| RDC_SetPdapAccess(RDC, rdcPdapUart6, RDC_DT_VAL(uart6), false, false); |
| /* Select clock derived from OSC clock(24M) */ |
| CCM_UpdateRoot(CCM, ccmRootUart6, ccmRootmuxUartOsc24m, 0, 0); |
| /* Enable uart clock */ |
| CCM_EnableRoot(CCM, ccmRootUart6); |
| /* |
| * IC Limitation |
| * M4 stop will cause A7 UART lose functionality |
| * So we need UART clock all the time |
| */ |
| CCM_ControlGate(CCM, ccmCcgrGateUart6, ccmClockNeededAll); |
| #endif |
| } |
| #endif /* CONFIG_UART_IMX */ |
| |
| |
| #ifdef CONFIG_I2C_IMX |
| static void nxp_mcimx7_i2c_config(void) |
| { |
| |
| #if DT_NODE_HAS_STATUS(DT_NODELABEL(i2c1), okay) |
| /* In this example, we need to grasp board I2C exclusively */ |
| RDC_SetPdapAccess(RDC, rdcPdapI2c1, RDC_DT_VAL(i2c1), false, false); |
| /* Select I2C clock derived from OSC clock(24M) */ |
| CCM_UpdateRoot(CCM, ccmRootI2c1, ccmRootmuxI2cOsc24m, 0, 0); |
| /* Enable I2C clock */ |
| CCM_EnableRoot(CCM, ccmRootI2c1); |
| CCM_ControlGate(CCM, ccmCcgrGateI2c1, ccmClockNeededRunWait); |
| #endif |
| |
| #if DT_NODE_HAS_STATUS(DT_NODELABEL(i2c2), okay) |
| /* In this example, we need to grasp board I2C exclusively */ |
| RDC_SetPdapAccess(RDC, rdcPdapI2c2, RDC_DT_VAL(i2c2), false, false); |
| /* Select I2C clock derived from OSC clock(24M) */ |
| CCM_UpdateRoot(CCM, ccmRootI2c2, ccmRootmuxI2cOsc24m, 0, 0); |
| /* Enable I2C clock */ |
| CCM_EnableRoot(CCM, ccmRootI2c2); |
| CCM_ControlGate(CCM, ccmCcgrGateI2c2, ccmClockNeededRunWait); |
| #endif |
| |
| #if DT_NODE_HAS_STATUS(DT_NODELABEL(i2c3), okay) |
| /* In this example, we need to grasp board I2C exclusively */ |
| RDC_SetPdapAccess(RDC, rdcPdapI2c3, RDC_DT_VAL(i2c3), false, false); |
| /* Select I2C clock derived from OSC clock(24M) */ |
| CCM_UpdateRoot(CCM, ccmRootI2c3, ccmRootmuxI2cOsc24m, 0, 0); |
| /* Enable I2C clock */ |
| CCM_EnableRoot(CCM, ccmRootI2c3); |
| CCM_ControlGate(CCM, ccmCcgrGateI2c3, ccmClockNeededRunWait); |
| #endif |
| |
| #if DT_NODE_HAS_STATUS(DT_NODELABEL(i2c4), okay) |
| /* In this example, we need to grasp board I2C exclusively */ |
| RDC_SetPdapAccess(RDC, rdcPdapI2c4, RDC_DT_VAL(i2c4), false, false); |
| /* Select I2C clock derived from OSC clock(24M) */ |
| CCM_UpdateRoot(CCM, ccmRootI2c4, ccmRootmuxI2cOsc24m, 0, 0); |
| /* Enable I2C clock */ |
| CCM_EnableRoot(CCM, ccmRootI2c4); |
| CCM_ControlGate(CCM, ccmCcgrGateI2c4, ccmClockNeededRunWait); |
| #endif |
| |
| } |
| #endif /* CONFIG_I2C_IMX */ |
| |
| #ifdef CONFIG_PWM_IMX |
| static void nxp_mcimx7_pwm_config(void) |
| { |
| |
| #if DT_NODE_HAS_STATUS(DT_NODELABEL(pwm1), okay) |
| /* We need to grasp board pwm exclusively */ |
| RDC_SetPdapAccess(RDC, rdcPdapPwm1, RDC_DT_VAL(pwm1), false, false); |
| /* Select clock derived from OSC clock(24M) */ |
| CCM_UpdateRoot(CCM, ccmRootPwm1, ccmRootmuxPwmOsc24m, 0, 0); |
| /* Enable pwm clock */ |
| CCM_EnableRoot(CCM, ccmRootPwm1); |
| CCM_ControlGate(CCM, ccmCcgrGatePwm1, ccmClockNeededAll); |
| #endif |
| |
| #if DT_NODE_HAS_STATUS(DT_NODELABEL(pwm2), okay) |
| /* We need to grasp board pwm exclusively */ |
| RDC_SetPdapAccess(RDC, rdcPdapPwm2, RDC_DT_VAL(pwm2), false, false); |
| /* Select clock derived from OSC clock(24M) */ |
| CCM_UpdateRoot(CCM, ccmRootPwm2, ccmRootmuxPwmOsc24m, 0, 0); |
| /* Enable pwm clock */ |
| CCM_EnableRoot(CCM, ccmRootPwm2); |
| CCM_ControlGate(CCM, ccmCcgrGatePwm2, ccmClockNeededAll); |
| #endif |
| |
| #if DT_NODE_HAS_STATUS(DT_NODELABEL(pwm3), okay) |
| /* We need to grasp board pwm exclusively */ |
| RDC_SetPdapAccess(RDC, rdcPdapPwm3, RDC_DT_VAL(pwm3), false, false); |
| /* Select clock derived from OSC clock(24M) */ |
| CCM_UpdateRoot(CCM, ccmRootPwm3, ccmRootmuxPwmOsc24m, 0, 0); |
| /* Enable pwm clock */ |
| CCM_EnableRoot(CCM, ccmRootPwm3); |
| CCM_ControlGate(CCM, ccmCcgrGatePwm3, ccmClockNeededAll); |
| #endif |
| |
| #if DT_NODE_HAS_STATUS(DT_NODELABEL(pwm4), okay) |
| /* We need to grasp board pwm exclusively */ |
| RDC_SetPdapAccess(RDC, rdcPdapPwm4, RDC_DT_VAL(pwm4), false, false); |
| /* Select clock derived from OSC clock(24M) */ |
| CCM_UpdateRoot(CCM, ccmRootPwm4, ccmRootmuxPwmOsc24m, 0, 0); |
| /* Enable pwm clock */ |
| CCM_EnableRoot(CCM, ccmRootPwm4); |
| CCM_ControlGate(CCM, ccmCcgrGatePwm4, ccmClockNeededAll); |
| #endif |
| |
| } |
| #endif /* CONFIG_PWM_IMX */ |
| |
| #ifdef CONFIG_IPM_IMX |
| static void nxp_mcimx7_mu_config(void) |
| { |
| /* Set access to MU B for M4 core */ |
| RDC_SetPdapAccess(RDC, rdcPdapMuB, RDC_DT_VAL(mub), false, false); |
| |
| /* Enable clock gate for MU*/ |
| CCM_ControlGate(CCM, ccmCcgrGateMu, ccmClockNeededRun); |
| } |
| #endif /* CONFIG_IPM_IMX */ |
| |
| static int nxp_mcimx7_init(void) |
| { |
| |
| /* SoC specific RDC settings */ |
| SOC_RdcInit(); |
| |
| /* BoC specific clock settings */ |
| SOC_ClockInit(); |
| |
| #ifdef CONFIG_GPIO_IMX |
| nxp_mcimx7_gpio_config(); |
| #endif /* CONFIG_GPIO_IMX */ |
| |
| #ifdef CONFIG_UART_IMX |
| nxp_mcimx7_uart_config(); |
| #endif /* CONFIG_UART_IMX */ |
| |
| #ifdef CONFIG_I2C_IMX |
| nxp_mcimx7_i2c_config(); |
| #endif /* CONFIG_I2C_IMX */ |
| |
| #ifdef CONFIG_PWM_IMX |
| nxp_mcimx7_pwm_config(); |
| #endif /* CONFIG_PWM_IMX */ |
| |
| #ifdef CONFIG_IPM_IMX |
| nxp_mcimx7_mu_config(); |
| #endif /* CONFIG_IPM_IMX */ |
| |
| return 0; |
| } |
| |
| SYS_INIT(nxp_mcimx7_init, PRE_KERNEL_1, 0); |