ibm_newemac: Fix new MAL feature handling

Support for new features needed by the PPC 405EZ boards
introduced some errors in the MAL and EMAC feature handling.
This broke 'allmodconfig' builds as CONFIG_PPC_DCR_NATIVE is
not set for those.

This patch fixes these errors by wrapping the code in the
appropriate #ifdefs.

Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>

2 files changed, 23 insertions, 2 deletions

diff --git a/drivers/net/ibm_newemac/core.c b/drivers/net/ibm_newemac/core.c
index efcf21c9f5c7..2ee2622258f5 100644
--- a/drivers/net/ibm_newemac/core.c
+++ b/drivers/net/ibm_newemac/core.c
@@ -2604,8 +2604,16 @@ static int __devinit emac_init_config(struct emac_instance *dev)
                 if (of_device_is_compatible(np, "ibm,emac-440ep") ||
                     of_device_is_compatible(np, "ibm,emac-440gr"))
                         dev->features |= EMAC_FTR_440EP_PHY_CLK_FIX;
-                if (of_device_is_compatible(np, "ibm,emac-405ez"))
+                if (of_device_is_compatible(np, "ibm,emac-405ez")) {
+#ifdef CONFIG_IBM_NEW_EMAC_NO_FLOW_CONTROL
                         dev->features |= EMAC_FTR_NO_FLOW_CONTROL_40x;
+#else
+                        printk(KERN_ERR "%s: Flow control not disabled!\n",
+                                        np->full_name);
+                        return -ENXIO;
+#endif
+                }
+
         }
 
         /* Fixup some feature bits based on the device tree */
diff --git a/drivers/net/ibm_newemac/mal.c b/drivers/net/ibm_newemac/mal.c
index 1839d3f154a3..ecf9798987fa 100644
--- a/drivers/net/ibm_newemac/mal.c
+++ b/drivers/net/ibm_newemac/mal.c
@@ -280,9 +280,11 @@ static irqreturn_t mal_txeob(int irq, void *dev_instance)
         mal_schedule_poll(mal);
         set_mal_dcrn(mal, MAL_TXEOBISR, r);
 
+#ifdef CONFIG_PPC_DCR_NATIVE
         if (mal_has_feature(mal, MAL_FTR_CLEAR_ICINTSTAT))
                 mtdcri(SDR0, DCRN_SDR_ICINTSTAT,
                                 (mfdcri(SDR0, DCRN_SDR_ICINTSTAT) | ICINTSTAT_ICTX));
+#endif
 
         return IRQ_HANDLED;
 }
@@ -298,9 +300,11 @@ static irqreturn_t mal_rxeob(int irq, void *dev_instance)
         mal_schedule_poll(mal);
         set_mal_dcrn(mal, MAL_RXEOBISR, r);
 
+#ifdef CONFIG_PPC_DCR_NATIVE
         if (mal_has_feature(mal, MAL_FTR_CLEAR_ICINTSTAT))
                 mtdcri(SDR0, DCRN_SDR_ICINTSTAT,
                                 (mfdcri(SDR0, DCRN_SDR_ICINTSTAT) | ICINTSTAT_ICRX));
+#endif
 
         return IRQ_HANDLED;
 }
@@ -572,9 +576,18 @@ static int __devinit mal_probe(struct of_device *ofdev,
                 goto fail;
         }
 
-        if (of_device_is_compatible(ofdev->node, "ibm,mcmal-405ez"))
+        if (of_device_is_compatible(ofdev->node, "ibm,mcmal-405ez")) {
+#if defined(CONFIG_IBM_NEW_EMAC_MAL_CLR_ICINTSTAT) && \
+                defined(CONFIG_IBM_NEW_EMAC_MAL_COMMON_ERR)
                 mal->features |= (MAL_FTR_CLEAR_ICINTSTAT |
                                 MAL_FTR_COMMON_ERR_INT);
+#else
+                printk(KERN_ERR "%s: Support for 405EZ not enabled!\n",
+                                ofdev->node->full_name);
+                err = -ENODEV;
+                goto fail;
+#endif
+        }
 
         mal->txeob_irq = irq_of_parse_and_map(ofdev->node, 0);
         mal->rxeob_irq = irq_of_parse_and_map(ofdev->node, 1);