diff options
Diffstat (limited to 'drivers/net/ethernet/stmicro/stmmac/dwxgmac2_dma.c')
| -rw-r--r-- | drivers/net/ethernet/stmicro/stmmac/dwxgmac2_dma.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwxgmac2_dma.c b/drivers/net/ethernet/stmicro/stmmac/dwxgmac2_dma.c index bbbfa793a367..77308c5c5d29 100644 --- a/drivers/net/ethernet/stmicro/stmmac/dwxgmac2_dma.c +++ b/drivers/net/ethernet/stmicro/stmmac/dwxgmac2_dma.c @@ -429,6 +429,7 @@ static void dwxgmac2_get_hw_feature(void __iomem *ioaddr, /* MAC HW feature 3 */ hw_cap = readl(ioaddr + XGMAC_HW_FEATURE3); + dma_cap->tbssel = (hw_cap & XGMAC_HWFEAT_TBSSEL) >> 27; dma_cap->fpesel = (hw_cap & XGMAC_HWFEAT_FPESEL) >> 26; dma_cap->estwid = (hw_cap & XGMAC_HWFEAT_ESTWID) >> 23; dma_cap->estdep = (hw_cap & XGMAC_HWFEAT_ESTDEP) >> 20; @@ -523,6 +524,28 @@ static void dwxgmac2_enable_sph(void __iomem *ioaddr, bool en, u32 chan) writel(value, ioaddr + XGMAC_DMA_CH_CONTROL(chan)); } +static int dwxgmac2_enable_tbs(void __iomem *ioaddr, bool en, u32 chan) +{ + u32 value = readl(ioaddr + XGMAC_DMA_CH_TX_CONTROL(chan)); + + if (en) + value |= XGMAC_EDSE; + else + value &= ~XGMAC_EDSE; + + writel(value, ioaddr + XGMAC_DMA_CH_TX_CONTROL(chan)); + + value = readl(ioaddr + XGMAC_DMA_CH_TX_CONTROL(chan)) & XGMAC_EDSE; + if (en && !value) + return -EIO; + + writel(XGMAC_DEF_FTOS, ioaddr + XGMAC_DMA_TBS_CTRL0); + writel(XGMAC_DEF_FTOS, ioaddr + XGMAC_DMA_TBS_CTRL1); + writel(XGMAC_DEF_FTOS, ioaddr + XGMAC_DMA_TBS_CTRL2); + writel(XGMAC_DEF_FTOS, ioaddr + XGMAC_DMA_TBS_CTRL3); + return 0; +} + const struct stmmac_dma_ops dwxgmac210_dma_ops = { .reset = dwxgmac2_dma_reset, .init = dwxgmac2_dma_init, @@ -550,4 +573,5 @@ const struct stmmac_dma_ops dwxgmac210_dma_ops = { .qmode = dwxgmac2_qmode, .set_bfsize = dwxgmac2_set_bfsize, .enable_sph = dwxgmac2_enable_sph, + .enable_tbs = dwxgmac2_enable_tbs, }; |