feat(nxp-clk): set rate for PLL objects
Add implementation for ARM PLL rate set mechanism.
Change-Id: Ic859567bd67747f173d425158cdc581801f7446c
Signed-off-by: Ghennadi Procopciuc <ghennadi.procopciuc@nxp.com>
diff --git a/drivers/nxp/clk/s32cc/s32cc_clk_drv.c b/drivers/nxp/clk/s32cc/s32cc_clk_drv.c
index 69a9d21..d4c6155 100644
--- a/drivers/nxp/clk/s32cc/s32cc_clk_drv.c
+++ b/drivers/nxp/clk/s32cc/s32cc_clk_drv.c
@@ -245,6 +245,28 @@
return -EINVAL;
}
+static int set_pll_freq(const struct s32cc_clk_obj *module, unsigned long rate,
+ unsigned long *orate, unsigned int *depth)
+{
+ struct s32cc_pll *pll = s32cc_obj2pll(module);
+ int ret;
+
+ ret = update_stack_depth(depth);
+ if (ret != 0) {
+ return ret;
+ }
+
+ if ((pll->vco_freq != 0UL) && (pll->vco_freq != rate)) {
+ ERROR("PLL frequency was already set\n");
+ return -EINVAL;
+ }
+
+ pll->vco_freq = rate;
+ *orate = pll->vco_freq;
+
+ return 0;
+}
+
static int set_module_rate(const struct s32cc_clk_obj *module,
unsigned long rate, unsigned long *orate,
unsigned int *depth)
@@ -263,9 +285,11 @@
case s32cc_osc_t:
ret = set_osc_freq(module, rate, orate, depth);
break;
+ case s32cc_pll_t:
+ ret = set_pll_freq(module, rate, orate, depth);
+ break;
case s32cc_clkmux_t:
case s32cc_shared_clkmux_t:
- case s32cc_pll_t:
case s32cc_pll_out_div_t:
ret = -ENOTSUP;
break;
diff --git a/drivers/nxp/clk/s32cc/s32cc_early_clks.c b/drivers/nxp/clk/s32cc/s32cc_early_clks.c
index 98f30d8..7ccfc00 100644
--- a/drivers/nxp/clk/s32cc/s32cc_early_clks.c
+++ b/drivers/nxp/clk/s32cc/s32cc_early_clks.c
@@ -9,6 +9,7 @@
#include <s32cc-clk-utils.h>
#define S32CC_FXOSC_FREQ (40U * MHZ)
+#define S32CC_ARM_PLL_VCO_FREQ (2U * GHZ)
int s32cc_init_early_clks(void)
{
@@ -31,6 +32,11 @@
return ret;
}
+ ret = clk_set_rate(S32CC_CLK_ARM_PLL_VCO, S32CC_ARM_PLL_VCO_FREQ, NULL);
+ if (ret != 0) {
+ return ret;
+ }
+
ret = clk_enable(S32CC_CLK_FXOSC);
if (ret != 0) {
return ret;
diff --git a/include/drivers/nxp/clk/s32cc/s32cc-clk-modules.h b/include/drivers/nxp/clk/s32cc/s32cc-clk-modules.h
index 6ffe321..1fe2719 100644
--- a/include/drivers/nxp/clk/s32cc/s32cc-clk-modules.h
+++ b/include/drivers/nxp/clk/s32cc/s32cc-clk-modules.h
@@ -188,4 +188,12 @@
return s32cc_obj2clkmux(clk->module);
}
+static inline struct s32cc_pll *s32cc_obj2pll(const struct s32cc_clk_obj *mod)
+{
+ uintptr_t pll_addr;
+
+ pll_addr = ((uintptr_t)mod) - offsetof(struct s32cc_pll, desc);
+ return (struct s32cc_pll *)pll_addr;
+}
+
#endif /* S32CC_CLK_MODULES_H */