diff options
Diffstat (limited to 'drivers/net/ethernet/stmicro/stmmac/dwmac4_dma.c')
| -rw-r--r-- | drivers/net/ethernet/stmicro/stmmac/dwmac4_dma.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac4_dma.c b/drivers/net/ethernet/stmicro/stmmac/dwmac4_dma.c index b24c89572745..36a0af8bf89f 100644 --- a/drivers/net/ethernet/stmicro/stmmac/dwmac4_dma.c +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac4_dma.c @@ -368,6 +368,7 @@ static void dwmac4_get_hw_feature(void __iomem *ioaddr, dma_cap->hash_tb_sz = (hw_cap & GMAC_HW_HASH_TB_SZ) >> 24; dma_cap->av = (hw_cap & GMAC_HW_FEAT_AVSEL) >> 20; dma_cap->tsoen = (hw_cap & GMAC_HW_TSOEN) >> 18; + dma_cap->sphen = (hw_cap & GMAC_HW_FEAT_SPHEN) >> 17; dma_cap->addr64 = (hw_cap & GMAC_HW_ADDR64) >> 14; switch (dma_cap->addr64) { @@ -460,6 +461,22 @@ static void dwmac4_set_bfsize(void __iomem *ioaddr, int bfsize, u32 chan) writel(value, ioaddr + DMA_CHAN_RX_CONTROL(chan)); } +static void dwmac4_enable_sph(void __iomem *ioaddr, bool en, u32 chan) +{ + u32 value = readl(ioaddr + GMAC_EXT_CONFIG); + + value &= ~GMAC_CONFIG_HDSMS; + value |= GMAC_CONFIG_HDSMS_256; /* Segment max 256 bytes */ + writel(value, ioaddr + GMAC_EXT_CONFIG); + + value = readl(ioaddr + DMA_CHAN_CONTROL(chan)); + if (en) + value |= DMA_CONTROL_SPH; + else + value &= ~DMA_CONTROL_SPH; + writel(value, ioaddr + DMA_CHAN_CONTROL(chan)); +} + const struct stmmac_dma_ops dwmac4_dma_ops = { .reset = dwmac4_dma_reset, .init = dwmac4_dma_init, @@ -486,6 +503,7 @@ const struct stmmac_dma_ops dwmac4_dma_ops = { .enable_tso = dwmac4_enable_tso, .qmode = dwmac4_qmode, .set_bfsize = dwmac4_set_bfsize, + .enable_sph = dwmac4_enable_sph, }; const struct stmmac_dma_ops dwmac410_dma_ops = { @@ -514,4 +532,5 @@ const struct stmmac_dma_ops dwmac410_dma_ops = { .enable_tso = dwmac4_enable_tso, .qmode = dwmac4_qmode, .set_bfsize = dwmac4_set_bfsize, + .enable_sph = dwmac4_enable_sph, }; |