4  * SPDX-License-Identifier: Apache-2.0
15 #include <zephyr/dt-bindings/interrupt-controller/ite-intc.h>
19  * ITE EC chip from dtsi (include status disable). Both it81202 and
34 /* PLL Frequency Auto-Calibration Control 0 Register */
44 /* PLL Frequency Auto-Calibration Control 2 Register */
79 		return -ERANGE;  in chip_get_pll_freq()
91 	 * for deep doze / sleep mode  in chip_pll_ctrl()
180 	/* Enable HW timer to wakeup chip from the sleep mode */  in chip_run_pll_sequence()
186 	 * into wakeup from the sleep mode.  in chip_run_pll_sequence()
188 	 * enter sleep mode, and wait HW timer to wakeup chip to  in chip_run_pll_sequence()
191 	IT8XXX2_ECPM_PLLFREQR = pll->pll_freq;  in chip_run_pll_sequence()
192 	/* Pre-set FND clock frequency = PLL / 3 */  in chip_run_pll_sequence()
194 	/* JTAG and EC */  in chip_run_pll_sequence()
195 	IT8XXX2_ECPM_SCDCR3 = (pll->div_jtag << 4) | pll->div_ec;  in chip_run_pll_sequence()
196 	/* Chip sleep after wait for interrupt (wfi) instruction */  in chip_run_pll_sequence()
198 	/* Chip sleep and wait timer wake it up */  in chip_run_pll_sequence()
200 	/* New FND and MCU clock frequency */  in chip_run_pll_sequence()
201 	IT8XXX2_ECPM_SCDCR0 = (pll->div_fnd << 4) | pll->div_mcu;  in chip_run_pll_sequence()
204 	/* USB and UART */  in chip_run_pll_sequence()
205 	IT8XXX2_ECPM_SCDCR1 = (pll->div_usb << 4) | pll->div_uart;  in chip_run_pll_sequence()
206 	/* SSPI and SMB */  in chip_run_pll_sequence()
207 	IT8XXX2_ECPM_SCDCR2 = (pll->div_sspi << 4) | pll->div_smb;  in chip_run_pll_sequence()
208 	/* USBPD and PWM */  in chip_run_pll_sequence()
209 	IT8XXX2_ECPM_SCDCR4 = (pll->div_usbpd << 4) | pll->div_pwm;  in chip_run_pll_sequence()
214 	/* Re-configure PLL clock or not. */  in chip_configure_pll()
215 	if (((IT8XXX2_ECPM_PLLFREQR & 0xf) != pll->pll_freq) ||  in chip_configure_pll()
216 		((IT8XXX2_ECPM_SCDCR0 & 0xf0) != (pll->div_fnd << 4)) ||  in chip_configure_pll()
217 		((IT8XXX2_ECPM_SCDCR3 & 0xf) != pll->div_ec)) {  in chip_configure_pll()
298 	 * called without interrupts locked. Hence we disable M-mode external  in riscv_idle()
306 	 * mode will disable CPU and RAM clocks, enable eSPI transaction  in riscv_idle()
322 		 * register is non-zero.  in riscv_idle()
324 		 * it means that EC waked-up by the above issue not an  in riscv_idle()
341 	 * Enable M-mode external interrupt  in riscv_idle()
380 	usb_regs->port0_misc_control &= ~PULL_DOWN_EN;  in ite_it8xxx2_init()
381 	usb_regs->port1_misc_control &= ~PULL_DOWN_EN;  in ite_it8xxx2_init()
385 	 * bit7: wake up CPU if it is in low power mode and  in ite_it8xxx2_init()
388 	gctrl_regs->GCTRL_WMCR |= BIT(7);  in ite_it8xxx2_init()
394 	gctrl_regs->GCTRL_MCCR &= ~IT8XXX2_GCTRL_USB_DEBUG_EN;  in ite_it8xxx2_init()
397 	 * Disable this feature that can detect pre-define hardware  in ite_it8xxx2_init()
419 	gctrl_regs->GCTRL_RSTDMMC |= IT8XXX2_GCTRL_UART1SD;  in ite_it8xxx2_init()
421 	gctrl_regs->GCTRL_RSTC4 = IT8XXX2_GCTRL_RUART1;  in ite_it8xxx2_init()
424 	gpio_regs->GPIO_GCR1 |= IT8XXX2_GPIO_U1CTRL_SIN0_SOUT0_EN;  in ite_it8xxx2_init()
431 	gpio_regs->GPIO_GCR21 &= ~(IT8XXX2_GPIO_GPH1VS | IT8XXX2_GPIO_GPH2VS);  in ite_it8xxx2_init()
437 	gctrl_regs->GCTRL_RSTDMMC |= IT8XXX2_GCTRL_UART2SD;  in ite_it8xxx2_init()
439 	gctrl_regs->GCTRL_RSTC4 = IT8XXX2_GCTRL_RUART2;  in ite_it8xxx2_init()
442 	gpio_regs->GPIO_GCR1 |= IT8XXX2_GPIO_U2CTRL_SIN1_SOUT1_EN;  in ite_it8xxx2_init()
466 		/* Power down all CC, and disable CC voltage detector */  in ite_it8xxx2_init()
467 		base->CCGCR |= (IT8XXX2_USBPD_DISABLE_CC |  in ite_it8xxx2_init()
470 		 * Disconnect CC analog module (ex.UP/RD/DET/TX/RX), and  in ite_it8xxx2_init()
473 		base->CCCSR |= (IT8XXX2_USBPD_CC2_DISCONNECT |  in ite_it8xxx2_init()
478 		base->CCPSR |= (IT8XXX2_USBPD_DISCONNECT_POWER_CC2 |  in ite_it8xxx2_init()
480 		/* Dis-connect 5.1K dead battery resistor to CC */  in ite_it8xxx2_init()
481 		base->CCPSR |= (IT8XXX2_USBPD_DISCONNECT_5_1K_CC2_DB |  in ite_it8xxx2_init()