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X-Original-Sender: bh74.an@samsung.com X-Original-Authentication-Results: mx.google.com; spf=neutral (google.com: patch+caf_=patchwork-forward=linaro.org@linaro.org does not designate permitted sender hosts) smtp.mail=patch+caf_=patchwork-forward=linaro.org@linaro.org Mailing-list: list patchwork-forward@linaro.org; contact patchwork-forward+owners@linaro.org X-Google-Group-Id: 836684582541 List-Post: , List-Help: , List-Archive: List-Unsubscribe: , Content-type: text/plain; charset=us-ascii Content-transfer-encoding: 7bit Content-language: ko This patch adds the condition for non fixed burst mode and seperates into two conditions for pbl value. Signed-off-by: Byungho An --- drivers/net/ethernet/samsung/sxgbe/sxgbe_dma.c | 32 ++++++++++++++++++++--- drivers/net/ethernet/samsung/sxgbe/sxgbe_dma.h | 2 +- drivers/net/ethernet/samsung/sxgbe/sxgbe_main.c | 3 ++- 3 files changed, 32 insertions(+), 5 deletions(-) diff --git a/drivers/net/ethernet/samsung/sxgbe/sxgbe_dma.c b/drivers/net/ethernet/samsung/sxgbe/sxgbe_dma.c index bb9b5b8..49240c9 100644 --- a/drivers/net/ethernet/samsung/sxgbe/sxgbe_dma.c +++ b/drivers/net/ethernet/samsung/sxgbe/sxgbe_dma.c @@ -45,7 +45,8 @@ static int sxgbe_dma_init(void __iomem *ioaddr, int fix_burst, int burst_map) static void sxgbe_dma_channel_init(void __iomem *ioaddr, int cha_num, int fix_burst, int pbl, dma_addr_t dma_tx, - dma_addr_t dma_rx, int t_rsize, int r_rsize) + dma_addr_t dma_rx, int t_rsize, int r_rsize, + int buf_size) { u32 reg_val; dma_addr_t dma_addr; @@ -57,12 +58,37 @@ static void sxgbe_dma_channel_init(void __iomem *ioaddr, int cha_num, writel(reg_val, ioaddr + SXGBE_DMA_CHA_CTL_REG(cha_num)); /* program the TX pbl */ reg_val = readl(ioaddr + SXGBE_DMA_CHA_TXCTL_REG(cha_num)); - reg_val |= (pbl << SXGBE_DMA_TXPBL_LSHIFT); + reg_val |= pbl << SXGBE_DMA_TXPBL_LSHIFT; writel(reg_val, ioaddr + SXGBE_DMA_CHA_TXCTL_REG(cha_num)); /* program the RX pbl */ reg_val = readl(ioaddr + SXGBE_DMA_CHA_RXCTL_REG(cha_num)); - reg_val |= (pbl << SXGBE_DMA_RXPBL_LSHIFT); + reg_val |= pbl << SXGBE_DMA_RXPBL_LSHIFT; writel(reg_val, ioaddr + SXGBE_DMA_CHA_RXCTL_REG(cha_num)); + } else { + if (pbl > 32) { + /* program the pblx8 */ + reg_val |= SXGBE_DMA_PBL_X8MODE; + writel(reg_val, ioaddr + SXGBE_DMA_CHA_CTL_REG(cha_num)); + /* program the TX pbl */ + reg_val = readl(ioaddr + SXGBE_DMA_CHA_TXCTL_REG(cha_num)); + reg_val |= (pbl >> 3) << SXGBE_DMA_TXPBL_LSHIFT; + writel(reg_val, ioaddr + SXGBE_DMA_CHA_TXCTL_REG(cha_num)); + /* program the RX pbl */ + reg_val = readl(ioaddr + SXGBE_DMA_CHA_RXCTL_REG(cha_num)); + reg_val |= (pbl >> 3) << SXGBE_DMA_RXPBL_LSHIFT | + buf_size << SXGBE_DMA_BLENMAP_LSHIFT; + writel(reg_val, ioaddr + SXGBE_DMA_CHA_RXCTL_REG(cha_num)); + } else { + /* program the TX pbl */ + reg_val = readl(ioaddr + SXGBE_DMA_CHA_TXCTL_REG(cha_num)); + reg_val |= pbl << SXGBE_DMA_TXPBL_LSHIFT; + writel(reg_val, ioaddr + SXGBE_DMA_CHA_TXCTL_REG(cha_num)); + /* program the RX pbl */ + reg_val = readl(ioaddr + SXGBE_DMA_CHA_RXCTL_REG(cha_num)); + reg_val |= pbl << SXGBE_DMA_RXPBL_LSHIFT | + buf_size << SXGBE_DMA_BLENMAP_LSHIFT; + writel(reg_val, ioaddr + SXGBE_DMA_CHA_RXCTL_REG(cha_num)); + } } /* program desc registers */ diff --git a/drivers/net/ethernet/samsung/sxgbe/sxgbe_dma.h b/drivers/net/ethernet/samsung/sxgbe/sxgbe_dma.h index 1607b54..843fa9b 100644 --- a/drivers/net/ethernet/samsung/sxgbe/sxgbe_dma.h +++ b/drivers/net/ethernet/samsung/sxgbe/sxgbe_dma.h @@ -25,7 +25,7 @@ struct sxgbe_dma_ops { int (*init)(void __iomem *ioaddr, int fix_burst, int burst_map); void (*cha_init)(void __iomem *ioaddr, int cha_num, int fix_burst, int pbl, dma_addr_t dma_tx, dma_addr_t dma_rx, - int t_rzie, int r_rsize); + int t_rzie, int r_rsize, int buf_size); void (*enable_dma_transmission)(void __iomem *ioaddr, int dma_cnum); void (*enable_dma_irq)(void __iomem *ioaddr, int dma_cnum); void (*disable_dma_irq)(void __iomem *ioaddr, int dma_cnum); diff --git a/drivers/net/ethernet/samsung/sxgbe/sxgbe_main.c b/drivers/net/ethernet/samsung/sxgbe/sxgbe_main.c index 82a9a98..93bf151 100644 --- a/drivers/net/ethernet/samsung/sxgbe/sxgbe_main.c +++ b/drivers/net/ethernet/samsung/sxgbe/sxgbe_main.c @@ -944,7 +944,8 @@ static int sxgbe_init_dma_engine(struct sxgbe_priv_data *priv) fixed_burst, pbl, (priv->txq[queue_num])->dma_tx_phy, (priv->rxq[queue_num])->dma_rx_phy, - priv->dma_tx_size, priv->dma_rx_size); + priv->dma_tx_size, priv->dma_rx_size, + priv->dma_buf_sz); return priv->hw->dma->init(priv->ioaddr, fixed_burst, burst_map); }