diff options
| author | Jingchang Lu <jingchang.lu@freescale.com> | 2014-06-12 07:36:36 (GMT) |
|---|---|---|
| committer | Matthew Weigel <Matthew.Weigel@freescale.com> | 2014-12-11 18:38:13 (GMT) |
| commit | 20af0dc3a4003cdfaaac974dfe131e030b857dcd (patch) | |
| tree | 51ded5e6ea17d1b534026d857c7849bf3c014bec /drivers/net/ethernet | |
| parent | ca304d82b88b85de467539cecd67fc00c94e52f0 (diff) | |
| download | linux-fsl-qoriq-20af0dc3a4003cdfaaac974dfe131e030b857dcd.tar.xz | |
gianfar: Add dma transfer endian property support
Signed-off-by: Jason Jin <Jason.Jin@freescale.com>
Signed-off-by: Jingchang Lu <jingchang.lu@freescale.com>
Change-Id: I3958f741a54691a882323a95b56bc7d8cb1311c4
Reviewed-on: http://git.am.freescale.net:8181/21179
Reviewed-by: Sandeep Malik <Sandeep.Malik@freescale.com>
Tested-by: Review Code-CDREVIEW <CDREVIEW@freescale.com>
Diffstat (limited to 'drivers/net/ethernet')
| -rw-r--r-- | drivers/net/ethernet/freescale/gianfar.c | 5 | ||||
| -rw-r--r-- | drivers/net/ethernet/freescale/gianfar.h | 4 |
2 files changed, 9 insertions, 0 deletions
diff --git a/drivers/net/ethernet/freescale/gianfar.c b/drivers/net/ethernet/freescale/gianfar.c index 65fc7f6..2f67fe8 100644 --- a/drivers/net/ethernet/freescale/gianfar.c +++ b/drivers/net/ethernet/freescale/gianfar.c @@ -955,6 +955,9 @@ static int gfar_of_init(struct platform_device *ofdev, struct net_device **pdev) /* Find the TBI PHY. If it's not there, we don't support SGMII */ priv->tbi_node = of_parse_phandle(np, "tbi-handle", 0); + + priv->dma_endian_le = of_property_read_bool(np, "fsl,dma-endian-le"); + #if defined CONFIG_FSL_GIANFAR_1588 /* Handle IEEE1588 node */ if (!gfar_ptp_init(np, priv)) @@ -2181,6 +2184,8 @@ void gfar_start(struct gfar_private *priv) /* Initialize DMACTRL to have WWR and WOP */ tempval = gfar_read(®s->dmactrl); tempval |= DMACTRL_INIT_SETTINGS; + if (priv->dma_endian_le) + tempval |= DMACTRL_LE; gfar_write(®s->dmactrl, tempval); /* Make sure we aren't stopped */ diff --git a/drivers/net/ethernet/freescale/gianfar.h b/drivers/net/ethernet/freescale/gianfar.h index d27ee80..f7c14a5 100644 --- a/drivers/net/ethernet/freescale/gianfar.h +++ b/drivers/net/ethernet/freescale/gianfar.h @@ -309,6 +309,7 @@ extern const char gfar_driver_version[]; #endif #define DMACTRL_GRS 0x00000010 #define DMACTRL_GTS 0x00000008 +#define DMACTRL_LE 0x00008000 #define TSTAT_CLEAR_THALT_ALL 0xFF000000 #define TSTAT_CLEAR_THALT 0x80000000 @@ -1331,6 +1332,9 @@ struct gfar_private { /* L2 SRAM alloc of BDs */ bd_l2sram_en:1; + /* little endian dma buffer and descriptor host interface */ + unsigned int dma_endian_le; + /* The total tx and rx ring size for the enabled queues */ unsigned int total_tx_ring_size; unsigned int total_rx_ring_size; |