diff options
| -rw-r--r-- | src/drivers/net/phantom/phantom.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/src/drivers/net/phantom/phantom.c b/src/drivers/net/phantom/phantom.c index a1313dc3..6c7d1fc9 100644 --- a/src/drivers/net/phantom/phantom.c +++ b/src/drivers/net/phantom/phantom.c @@ -1673,6 +1673,17 @@ static int phantom_init_cmdpeg ( struct phantom_nic *phantom ) { uint32_t cmdpeg_state; uint32_t last_cmdpeg_state = 0; + /* Check for a previous initialisation. This could have + * happened if, for example, the BIOS used the UNDI API to + * drive the NIC prior to a full PXE boot. + */ + cmdpeg_state = phantom_readl ( phantom, UNM_NIC_REG_CMDPEG_STATE ); + if ( cmdpeg_state == UNM_NIC_REG_CMDPEG_STATE_INITIALIZE_ACK ) { + DBGC ( phantom, "Phantom %p command PEG already initialized\n", + phantom ); + return 0; + } + /* If this was a cold boot, check that the hardware came up ok */ cold_boot = phantom_readl ( phantom, UNM_CAM_RAM_COLD_BOOT ); if ( cold_boot == UNM_CAM_RAM_COLD_BOOT_MAGIC ) { |