[NOTFORMERGE PATCH 12/12] POC hw/pci-host/bonito: Fix BONGENCFG value after a warm-reset

["Philippe Mathieu-Daudé" <f4bug@amsat.org>]

The CPUSELFRESET bit should only be set on COLD reset.
To have the PMON firmware behave correctly after WARM
reset, we need to clear this bit.

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
---
Cc: Damien Hedde <damien.hedde@greensocs.com>
---
 hw/pci-host/bonito.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/hw/pci-host/bonito.c b/hw/pci-host/bonito.c
index 86aceb333a..60eab867f0 100644
--- a/hw/pci-host/bonito.c
+++ b/hw/pci-host/bonito.c
@@ -586,6 +586,12 @@ static int pci_bonito_map_irq(PCIDevice *pci_dev, int irq_num)
     }
 }
 
+static ResetType bonito_reset_type(PCIBonitoState *s)
+{
+    /* TODO: Use resettable_get_type(s) to also return RESET_TYPE_WARM */
+    return RESET_TYPE_COLD;
+}
+
 static void bonito_reset(void *opaque)
 {
     PCIBonitoState *s = opaque;
@@ -598,7 +604,8 @@ static void bonito_reset(void *opaque)
     val = FIELD_DP32(val, BONGENCFG, WRITEBEHIND, 1);
     val = FIELD_DP32(val, BONGENCFG, PREFETCH, 1);
     val = FIELD_DP32(val, BONGENCFG, UNCACHED, 1);
-    val = FIELD_DP32(val, BONGENCFG, CPUSELFRESET, 1);
+    val = FIELD_DP32(val, BONGENCFG, CPUSELFRESET,
+                     bonito_reset_type(s) == RESET_TYPE_COLD);
     s->regs[BONITO_BONGENCFG] = val;
 
     s->regs[BONITO_IODEVCFG] = 0x2bff8010;
-- 
2.21.3