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dwc: rockchip: Properly calculate mii clock based on pclk_mac

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This commit is contained in:
Emmanuel Vadot 2023-10-06 17:44:00 +02:00
parent 7854d0f658
commit cf037a17c7
1 changed files with 22 additions and 2 deletions
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24
sys/dev/dwc/if_dwc_rk.c
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@ -581,9 +581,29 @@ if_dwc_rk_init(device_t dev)
static int
if_dwc_rk_mii_clk(device_t dev)
{
struct if_dwc_rk_softc *sc;
uint64_t freq;
int rv;
/* Should be calculated from the clock */
return (GMAC_MII_CLK_150_250M_DIV102);
sc = device_get_softc(dev);
if ((rv = clk_get_freq(sc->pclk_mac, &freq)) != 0)
return (-rv);
freq = freq / 1000 / 1000;
if (freq >= 60 && freq <= 100)
return (GMAC_MII_CLK_60_100M_DIV42);
else if (freq >= 100 && freq <= 150)
return (GMAC_MII_CLK_100_150M_DIV62);
else if (freq >= 20 && freq <= 35)
return (GMAC_MII_CLK_25_35M_DIV16);
else if (freq >= 35 && freq <= 60)
return (GMAC_MII_CLK_35_60M_DIV26);
else if (freq >= 150 && freq <= 250)
return (GMAC_MII_CLK_150_250M_DIV102);
else if (freq >= 250 && freq <= 300)
return (GMAC_MII_CLK_250_300M_DIV124);
return (-ERANGE);
}
static int