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net/dp8393x: fix hardware reset

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Documentation is not clear of what happens when doing a hardware reset,
but firmware expect all registers to be zero unless specified otherwise.

This fixes reboot on MIPS Magnum.

Signed-off-by: Hervé Poussineau <hpoussin@reactos.org>
Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
This commit is contained in:
Hervé Poussineau 2015-06-03 22:45:49 +02:00 committed by Leon Alrae
parent 409b52bfe1
commit bd8f1ebce4
1 changed files with 1 additions and 0 deletions
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hw/net/dp8393x.c
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@ -786,6 +786,7 @@ static void dp8393x_reset(DeviceState *dev)
dp8393xState *s = DP8393X(dev);
timer_del(s->watchdog);
memset(s->regs, 0, sizeof(s->regs));
s->regs[SONIC_CR] = SONIC_CR_RST | SONIC_CR_STP | SONIC_CR_RXDIS;
s->regs[SONIC_DCR] &= ~(SONIC_DCR_EXBUS | SONIC_DCR_LBR);
s->regs[SONIC_RCR] &= ~(SONIC_RCR_LB0 | SONIC_RCR_LB1 | SONIC_RCR_BRD | SONIC_RCR_RNT);