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[PULL,22/29] net/dp8393x: fix hardware reset

Message ID 1434101736-11558-23-git-send-email-leon.alrae@imgtec.com
State New
Headers show

Commit Message

Leon Alrae June 12, 2015, 9:35 a.m. UTC 
From: Hervé Poussineau <hpoussin@reactos.org>

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>
---
 hw/net/dp8393x.c | 1 +
 1 file changed, 1 insertion(+)
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Patch

diff --git a/hw/net/dp8393x.c b/hw/net/dp8393x.c
index ff633f7..cd889bc 100644
--- a/hw/net/dp8393x.c
+++ b/hw/net/dp8393x.c
@@ -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);