sfc: Expose flash region storing boot code as MTD
The boot code that appears as a PCI expansion ROM on the SFC4000 is
stored in flash. Expose this as a standard MTD device to allow for
in-place upgrades.
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
diff --git a/drivers/net/sfc/efx.c b/drivers/net/sfc/efx.c
index 5b05789..f913937 100644
--- a/drivers/net/sfc/efx.c
+++ b/drivers/net/sfc/efx.c
@@ -1459,6 +1459,7 @@
struct efx_nic *efx = netdev_priv(net_dev);
strcpy(efx->name, net_dev->name);
+ efx_mtd_rename(efx);
}
return NOTIFY_DONE;
@@ -1550,6 +1551,7 @@
efx_stop_all(efx);
mutex_lock(&efx->mac_lock);
+ mutex_lock(&efx->spi_lock);
rc = falcon_xmac_get_settings(efx, ecmd);
if (rc)
@@ -1582,6 +1584,7 @@
EFX_ERR(efx, "could not restore PHY settings\n");
}
+ mutex_unlock(&efx->spi_lock);
mutex_unlock(&efx->mac_lock);
if (ok) {
@@ -1777,6 +1780,7 @@
memset(efx, 0, sizeof(*efx));
spin_lock_init(&efx->biu_lock);
spin_lock_init(&efx->phy_lock);
+ mutex_init(&efx->spi_lock);
INIT_WORK(&efx->reset_work, efx_reset_work);
INIT_DELAYED_WORK(&efx->monitor_work, efx_monitor);
efx->pci_dev = pci_dev;
@@ -1911,6 +1915,8 @@
if (!efx)
return;
+ efx_mtd_remove(efx);
+
/* Mark the NIC as fini, then stop the interface */
rtnl_lock();
efx->state = STATE_FINI;
@@ -2077,6 +2083,7 @@
EFX_LOG(efx, "initialisation successful\n");
+ efx_mtd_probe(efx); /* allowed to fail */
return 0;
fail5: