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clk: k6x: Enable High Speed RUN (HSRUN) mode for K66F SOC

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The NXP's Kinetics K66F is able to run with max frequency of 180MHz.
To achieve this goal the SMC's PMPROT and PMCTRL registers need to be
adjusted.

On the contrary the K64F doesn't support HSRUN run mode.

Signed-off-by: Lukasz Majewski <lukma@denx.de>
This commit is contained in:
Lukasz Majewski 2020-04-15 15:45:43 +02:00 • committed by Maureen Helm
commit 27b4e63d4f
1 changed files with 9 additions and 1 deletions
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10
soc/arm/nxp_kinetis/k6x/soc.c
View file

@ -33,6 +33,8 @@
#define TIMESRC_OSCERCLK (2)
#define RUNM_HSRUN (3)
static const osc_config_t oscConfig = {
.freq = CONFIG_OSC_XTAL0_FREQ,
.capLoad = 0,
@ -156,7 +158,13 @@ static int k6x_init(struct device *arg)
SYSMPU->CESR = temp_reg;
#endif /* !CONFIG_ARM_MPU */
/* Initialize PLL/system clock to 120 MHz */
#ifdef CONFIG_K6X_HSRUN
/* Switch to HSRUN mode */
SMC->PMPROT |= SMC_PMPROT_AHSRUN_MASK;
SMC->PMCTRL = (SMC->PMCTRL & ~SMC_PMCTRL_RUNM_MASK) |
SMC_PMCTRL_RUNM(RUNM_HSRUN);
#endif
/* Initialize PLL/system clock up to 180 MHz */
clock_init();
/*