diff mbox series

[v2,05/12] lasi: allow access to LAN MAC address registers

Message ID 20240209115633.55823-6-deller@kernel.org (mailing list archive)
State New, archived
Headers show
Series target/hppa: Enhancements and fixes | expand

Commit Message

Helge Deller Feb. 9, 2024, 11:56 a.m. UTC 
From: Helge Deller <deller@gmx.de>

Firmware and qemu reads and writes the MAC address for the LASI LAN via
registers in LASI. Allow those accesses and return zero even if LASI
LAN isn't enabled to avoid HPMCs (=crashes).

Signed-off-by: Helge Deller <deller@gmx.de>
---
 hw/misc/lasi.c | 2 ++
 1 file changed, 2 insertions(+)
diff mbox series

Patch

diff --git a/hw/misc/lasi.c b/hw/misc/lasi.c
index 003f5b5ed8..9cfa5bb316 100644
--- a/hw/misc/lasi.c
+++ b/hw/misc/lasi.c
@@ -38,6 +38,7 @@  static bool lasi_chip_mem_valid(void *opaque, hwaddr addr,
     case LASI_LPT:
     case LASI_UART:
     case LASI_LAN:
+    case LASI_LAN + 12: /* LASI LAN MAC */
     case LASI_RTC:
 
     case LASI_PCR ... LASI_AMR:
@@ -78,6 +79,7 @@  static MemTxResult lasi_chip_read_with_attrs(void *opaque, hwaddr addr,
     case LASI_LPT:
     case LASI_UART:
     case LASI_LAN:
+    case LASI_LAN + 12:
         val = 0;
         break;
     case LASI_RTC: