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Signed-off-by: Ondrej Spacek Signed-off-by: Chester Lin --- No change in v2. drivers/net/ethernet/stmicro/stmmac/dwmac4_dma.c | 10 ++++++++++ drivers/net/ethernet/stmicro/stmmac/dwmac4_dma.h | 4 +++- drivers/net/ethernet/stmicro/stmmac/hwif.h | 5 +++++ drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 3 +++ include/linux/stmmac.h | 7 +++++++ 5 files changed, 28 insertions(+), 1 deletion(-) diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac4_dma.c b/drivers/net/ethernet/stmicro/stmmac/dwmac4_dma.c index d99fa028c646..4e6e2952abfd 100644 --- a/drivers/net/ethernet/stmicro/stmmac/dwmac4_dma.c +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac4_dma.c @@ -517,6 +517,15 @@ static int dwmac4_enable_tbs(void __iomem *ioaddr, bool en, u32 chan) return 0; } +static void dwmac4_axi4_cc(void __iomem *ioaddr, + struct stmmac_axi4_ace_ctrl *acecfg) +{ + /* Configure AXI4 cache coherency for Tx/Rx DMA channels */ + writel(acecfg->tx_ar_reg, ioaddr + DMA_AXI4_TX_AR_ACE_CONTROL); + writel(acecfg->rx_aw_reg, ioaddr + DMA_AXI4_RX_AW_ACE_CONTROL); + writel(acecfg->txrx_awar_reg, ioaddr + DMA_AXI4_TXRX_AWAR_ACE_CONTROL); +} + const struct stmmac_dma_ops dwmac4_dma_ops = { .reset = dwmac4_dma_reset, .init = dwmac4_dma_init, @@ -574,4 +583,5 @@ const struct stmmac_dma_ops dwmac410_dma_ops = { .set_bfsize = dwmac4_set_bfsize, .enable_sph = dwmac4_enable_sph, .enable_tbs = dwmac4_enable_tbs, + .axi4_cc = dwmac4_axi4_cc, }; diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac4_dma.h b/drivers/net/ethernet/stmicro/stmmac/dwmac4_dma.h index 9321879b599c..7f491f2651b2 100644 --- a/drivers/net/ethernet/stmicro/stmmac/dwmac4_dma.h +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac4_dma.h @@ -21,7 +21,9 @@ #define DMA_DEBUG_STATUS_0 0x0000100c #define DMA_DEBUG_STATUS_1 0x00001010 #define DMA_DEBUG_STATUS_2 0x00001014 -#define DMA_AXI_BUS_MODE 0x00001028 +#define DMA_AXI4_TX_AR_ACE_CONTROL 0x00001020 +#define DMA_AXI4_RX_AW_ACE_CONTROL 0x00001024 +#define DMA_AXI4_TXRX_AWAR_ACE_CONTROL 0x00001028 #define DMA_TBS_CTRL 0x00001050 /* DMA Bus Mode bitmap */ diff --git a/drivers/net/ethernet/stmicro/stmmac/hwif.h b/drivers/net/ethernet/stmicro/stmmac/hwif.h index 592b4067f9b8..bffe2ec36bb3 100644 --- a/drivers/net/ethernet/stmicro/stmmac/hwif.h +++ b/drivers/net/ethernet/stmicro/stmmac/hwif.h @@ -212,6 +212,9 @@ struct stmmac_dma_ops { void (*set_bfsize)(void __iomem *ioaddr, int bfsize, u32 chan); void (*enable_sph)(void __iomem *ioaddr, bool en, u32 chan); int (*enable_tbs)(void __iomem *ioaddr, bool en, u32 chan); + /* Configure AXI4 cache coherency for Tx and Rx DMA channels */ + void (*axi4_cc)(void __iomem *ioaddr, + struct stmmac_axi4_ace_ctrl *acecfg); }; #define stmmac_reset(__priv, __args...) \ @@ -272,6 +275,8 @@ struct stmmac_dma_ops { stmmac_do_void_callback(__priv, dma, enable_sph, __args) #define stmmac_enable_tbs(__priv, __args...) \ stmmac_do_callback(__priv, dma, enable_tbs, __args) +#define stmmac_axi4_cc(__priv, __args...) \ + stmmac_do_void_callback(__priv, dma, axi4_cc, __args) struct mac_device_info; struct net_device; diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c index ff0b32c9e748..c689723c7d93 100644 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c @@ -2917,6 +2917,9 @@ static int stmmac_init_dma_engine(struct stmmac_priv *priv) if (priv->plat->axi) stmmac_axi(priv, priv->ioaddr, priv->plat->axi); + if (priv->plat->axi4_ace_ctrl) + stmmac_axi4_cc(priv, priv->ioaddr, priv->plat->axi4_ace_ctrl); + /* DMA CSR Channel configuration */ for (chan = 0; chan < dma_csr_ch; chan++) { stmmac_init_chan(priv, priv->ioaddr, priv->plat->dma_cfg, chan); diff --git a/include/linux/stmmac.h b/include/linux/stmmac.h index 307980c808f7..23e740c6c7b8 100644 --- a/include/linux/stmmac.h +++ b/include/linux/stmmac.h @@ -115,6 +115,12 @@ struct stmmac_axi { bool axi_rb; }; +struct stmmac_axi4_ace_ctrl { + u32 tx_ar_reg; + u32 rx_aw_reg; + u32 txrx_awar_reg; +}; + #define EST_GCL 1024 struct stmmac_est { struct mutex lock; @@ -248,6 +254,7 @@ struct plat_stmmacenet_data { struct reset_control *stmmac_rst; struct reset_control *stmmac_ahb_rst; struct stmmac_axi *axi; + struct stmmac_axi4_ace_ctrl *axi4_ace_ctrl; int has_gmac4; bool has_sun8i; bool tso_en;