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Differential D10385 Diff 38027 head/sys/arm/allwinner/clk/aw_pll.c

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head/sys/arm/allwinner/clk/aw_pll.c

Show First 20 Lines • Show All 859 Lines • ▼ Show 20 Linesa23_pll1_recalc(struct aw_pll_sc *sc, uint64_t *freq)
return (0); return (0);
} }
static int static int
h3_pll1_set_freq(struct aw_pll_sc *sc, uint64_t fin, uint64_t *fout, h3_pll1_set_freq(struct aw_pll_sc *sc, uint64_t fin, uint64_t *fout,
int flags) int flags)
{ {
struct aw_pll_factor *f; struct aw_pll_factor *f;
uint32_t val, n, k, m, p; uint32_t val, m, p;
int i; int i;
f = NULL; f = NULL;
for (i = 0; i < nitems(aw_a23_pll1_factors); i++) { for (i = 0; i < nitems(aw_a23_pll1_factors); i++) {
if (aw_a23_pll1_factors[i].freq == *fout) { if (aw_a23_pll1_factors[i].freq == *fout) {
f = &aw_a23_pll1_factors[i]; f = &aw_a23_pll1_factors[i];
break; break;
} }
} }
if (f == NULL) if (f == NULL)
return (EINVAL); return (EINVAL);
if ((flags & CLK_SET_DRYRUN) != 0) if ((flags & CLK_SET_DRYRUN) != 0)
return (0); return (0);
DEVICE_LOCK(sc); DEVICE_LOCK(sc);
PLL_READ(sc, &val); PLL_READ(sc, &val);
n = (val & A23_PLL1_FACTOR_N) >> A23_PLL1_FACTOR_N_SHIFT;
k = (val & A23_PLL1_FACTOR_K) >> A23_PLL1_FACTOR_K_SHIFT;
m = (val & A23_PLL1_FACTOR_M) >> A23_PLL1_FACTOR_M_SHIFT; m = (val & A23_PLL1_FACTOR_M) >> A23_PLL1_FACTOR_M_SHIFT;
p = (val & A23_PLL1_FACTOR_P) >> A23_PLL1_FACTOR_P_SHIFT; p = (val & A23_PLL1_FACTOR_P) >> A23_PLL1_FACTOR_P_SHIFT;
if (p < f->p) { if (p < f->p) {
val &= ~A23_PLL1_FACTOR_P; val &= ~A23_PLL1_FACTOR_P;
val |= (f->p << A23_PLL1_FACTOR_P_SHIFT); val |= (f->p << A23_PLL1_FACTOR_P_SHIFT);
PLL_WRITE(sc, val); PLL_WRITE(sc, val);
DELAY(2000); DELAY(2000);
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