netdev - [PATCH][v2] ibm_newemac: Added 16K Tx FIFO size support for EMAC4

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Message-Id: <1255019541-1974-1-git-send-email-dmitchell@appliedmicro.com>
Date:	Thu,  8 Oct 2009 11:32:21 -0500
From:	Dave Mitchell <dmitchell@...liedmicro.com>
To:	netdev@...r.kernel.org
Cc:	linuxppc-dev@...ts.ozlabs.org,
	Dave Mitchell <dmitchell@...liedmicro.com>
Subject: [PATCH][v2] ibm_newemac: Added 16K Tx FIFO size support for EMAC4

Some of the EMAC V4 implementations support 16K Tx FIFOs. This
patch adds support for this functionality and fixes typos in the
Tx FIFO size error messages.

Signed-off-by: Dave Mitchell <dmitchell@...liedmicro.com>
Acked-by: Prodyut Hazarika <phazarika@...liedmicro.com>
Acked-by: Victor Gallardo <vgallardo@...liedmicro.com>
Acked-by: Loc Ho <lho@...liedmicro.com>
---
 v1->v2: local date/time was out-of-sync and thus mail was as well
 
 drivers/net/ibm_newemac/core.c |    7 +++++--
 drivers/net/ibm_newemac/emac.h |    1 +
 2 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ibm_newemac/core.c b/drivers/net/ibm_newemac/core.c
index 89c82c5..c6591cb 100644
--- a/drivers/net/ibm_newemac/core.c
+++ b/drivers/net/ibm_newemac/core.c
@@ -443,7 +443,7 @@ static u32 __emac_calc_base_mr1(struct emac_instance *dev, int tx_size, int rx_s
 		ret |= EMAC_MR1_TFS_2K;
 		break;
 	default:
-		printk(KERN_WARNING "%s: Unknown Rx FIFO size %d\n",
+		printk(KERN_WARNING "%s: Unknown Tx FIFO size %d\n",
 		       dev->ndev->name, tx_size);
 	}
 
@@ -470,6 +470,9 @@ static u32 __emac4_calc_base_mr1(struct emac_instance *dev, int tx_size, int rx_
 	DBG2(dev, "__emac4_calc_base_mr1" NL);
 
 	switch(tx_size) {
+	case 16384:
+		ret |= EMAC4_MR1_TFS_16K;
+		break;
 	case 4096:
 		ret |= EMAC4_MR1_TFS_4K;
 		break;
@@ -477,7 +480,7 @@ static u32 __emac4_calc_base_mr1(struct emac_instance *dev, int tx_size, int rx_
 		ret |= EMAC4_MR1_TFS_2K;
 		break;
 	default:
-		printk(KERN_WARNING "%s: Unknown Rx FIFO size %d\n",
+		printk(KERN_WARNING "%s: Unknown Tx FIFO size %d\n",
 		       dev->ndev->name, tx_size);
 	}
 
diff --git a/drivers/net/ibm_newemac/emac.h b/drivers/net/ibm_newemac/emac.h
index 0afc2cf..d34adf9 100644
--- a/drivers/net/ibm_newemac/emac.h
+++ b/drivers/net/ibm_newemac/emac.h
@@ -153,6 +153,7 @@ struct emac_regs {
 #define EMAC4_MR1_RFS_16K		0x00280000
 #define EMAC4_MR1_TFS_2K       		0x00020000
 #define EMAC4_MR1_TFS_4K		0x00030000
+#define EMAC4_MR1_TFS_16K		0x00050000
 #define EMAC4_MR1_TR			0x00008000
 #define EMAC4_MR1_MWSW_001		0x00001000
 #define EMAC4_MR1_JPSM			0x00000800
-- 
1.6.3.2

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