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dwc: Add more delay for chip reset

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On rockchip board it seems that the value in the DTS
are not enough for reseting the chip, I don't know if
the value are really incorrect or if DELAY is not precise
enough or if the rockchip gpio driver have some "lag" of some
kind or not.
For now just add more delay.
This commit is contained in:
Emmanuel Vadot 2019-09-28 22:23:21 +00:00
parent 2a5509bf25
commit c069412ec3
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=352852
1 changed files with 3 additions and 6 deletions
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9
sys/dev/dwc/if_dwc.c
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@ -1074,16 +1074,13 @@ dwc_reset(device_t dev)
if (OF_hasprop(node, "snps,reset-active-low"))
pin_value = GPIO_PIN_HIGH;
if (flags & GPIO_ACTIVE_LOW)
pin_value = !pin_value;
GPIO_PIN_SETFLAGS(gpio, pin, GPIO_PIN_OUTPUT);
GPIO_PIN_SET(gpio, pin, pin_value);
DELAY(delay_prop[0]);
DELAY(delay_prop[0] * 5);
GPIO_PIN_SET(gpio, pin, !pin_value);
DELAY(delay_prop[1]);
DELAY(delay_prop[1] * 5);
GPIO_PIN_SET(gpio, pin, pin_value);
DELAY(delay_prop[2]);
DELAY(delay_prop[2] * 5);
return (0);
}