From b68d185ab12b1fc8000432c5d5ab5404d4788b4c Mon Sep 17 00:00:00 2001 From: Josh Boyer Date: Thu, 4 Sep 2008 02:57:57 +0000 Subject: [PATCH] ibm_newemac: Allow the "no flow control" EMAC feature to work Some PowerPC 40x chips have errata that force us not to use the integrated flow control. We have the feature defined, but it currently can't be used because it is never added to EMAC_FTRS_POSSIBLE. This adds a Kconfig option for affected platforms to select and puts the feature in the EMAC_FTRS_POSSIBLE list. This is set for PowerPC 405EZ platforms as well. Signed-off-by: Josh Boyer Acked-by: Benjamin Herrenschmidt Acked-by: Jeff Garzik Signed-off-by: Josh Boyer --- drivers/net/ibm_newemac/Kconfig | 4 ++++ drivers/net/ibm_newemac/core.c | 2 ++ drivers/net/ibm_newemac/core.h | 3 +++ 3 files changed, 9 insertions(+) diff --git a/drivers/net/ibm_newemac/Kconfig b/drivers/net/ibm_newemac/Kconfig index 70a3272ee99..dfb6547c37c 100644 --- a/drivers/net/ibm_newemac/Kconfig +++ b/drivers/net/ibm_newemac/Kconfig @@ -62,3 +62,7 @@ config IBM_NEW_EMAC_TAH config IBM_NEW_EMAC_EMAC4 bool default n + +config IBM_NEW_EMAC_NO_FLOW_CTRL + bool + default n diff --git a/drivers/net/ibm_newemac/core.c b/drivers/net/ibm_newemac/core.c index ccd9d9058f6..4e633870e6e 100644 --- a/drivers/net/ibm_newemac/core.c +++ b/drivers/net/ibm_newemac/core.c @@ -2567,6 +2567,8 @@ 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")) + dev->features |= EMAC_FTR_NO_FLOW_CONTROL_40x; } /* Fixup some feature bits based on the device tree */ diff --git a/drivers/net/ibm_newemac/core.h b/drivers/net/ibm_newemac/core.h index 6545e69d12c..59e5a5d802f 100644 --- a/drivers/net/ibm_newemac/core.h +++ b/drivers/net/ibm_newemac/core.h @@ -340,6 +340,9 @@ enum { #endif #ifdef CONFIG_IBM_NEW_EMAC_RGMII EMAC_FTR_HAS_RGMII | +#endif +#ifdef CONFIG_IBM_NEW_EMAC_NO_FLOW_CTRL + EMAC_FTR_NO_FLOW_CONTROL_40x | #endif EMAC_FTR_440EP_PHY_CLK_FIX, }; -- 2.41.0