| /* |
| * Copyright (c) 2023, NXP |
| * |
| * SPDX-License-Identifier: Apache-2.0 |
| */ |
| |
| #include <fsl_clock.h> |
| #include <soc.h> |
| |
| /* reimplementation of non-inline CLOCK_GetFreq(kCLOCK_Usb1PllPfd0Clk) */ |
| static uint32_t clock_get_usb1_pll_pfd0_clk(void) |
| { |
| uint32_t freq; |
| |
| if (!CLOCK_IsPllEnabled(CCM_ANALOG, kCLOCK_PllUsb1)) { |
| return 0; |
| } |
| |
| freq = CLOCK_GetPllBypassRefClk(CCM_ANALOG, kCLOCK_PllUsb1); |
| |
| if (CLOCK_IsPllBypassed(CCM_ANALOG, kCLOCK_PllUsb1)) { |
| return freq; |
| } |
| |
| freq *= ((CCM_ANALOG->PLL_USB1 & CCM_ANALOG_PLL_USB1_DIV_SELECT_MASK) != 0) ? 22 : 20; |
| |
| /* get current USB1 PLL PFD output frequency */ |
| freq /= (CCM_ANALOG->PFD_480 & CCM_ANALOG_PFD_480_PFD0_FRAC_MASK) >> |
| CCM_ANALOG_PFD_480_PFD0_FRAC_SHIFT; |
| freq *= 18; |
| |
| return freq; |
| } |
| |
| void flexspi_clock_set_div(uint32_t value) |
| { |
| CLOCK_DisableClock(kCLOCK_FlexSpi); |
| |
| CLOCK_SetDiv(kCLOCK_FlexspiDiv, value); |
| |
| CLOCK_EnableClock(kCLOCK_FlexSpi); |
| } |
| |
| uint32_t flexspi_clock_get_freq(void) |
| { |
| uint32_t divider; |
| uint32_t frequency; |
| |
| divider = CLOCK_GetDiv(kCLOCK_FlexspiDiv); |
| |
| frequency = clock_get_usb1_pll_pfd0_clk() / (divider + 1); |
| |
| return frequency; |
| } |