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| author | Jakub Kicinski <kuba@kernel.org> | 2022-06-17 06:13:52 +0300 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2022-06-17 06:13:52 +0300 |
| commit | 9cbc9911260f24cd3ce2bfb3bcdf4792366a5745 (patch) | |
| tree | 4600a657ac1e8977ff706bf398eb27de2dedab7f /drivers/net/ethernet/xilinx/xilinx_axienet_main.c | |
| parent | 5dcb50c009c9f8ec1cfca6a81a05c0060a5bbf68 (diff) | |
| parent | 48a23ec6ff2b2a5effe8d3ae5f17fc6b7f35df65 (diff) | |
| download | linux-9cbc9911260f24cd3ce2bfb3bcdf4792366a5745.tar.xz | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
No conflicts.
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'drivers/net/ethernet/xilinx/xilinx_axienet_main.c')
| -rw-r--r-- | drivers/net/ethernet/xilinx/xilinx_axienet_main.c | 29 |
1 files changed, 5 insertions, 24 deletions
diff --git a/drivers/net/ethernet/xilinx/xilinx_axienet_main.c b/drivers/net/ethernet/xilinx/xilinx_axienet_main.c index 93c9f305bba4..1760930ec0c4 100644 --- a/drivers/net/ethernet/xilinx/xilinx_axienet_main.c +++ b/drivers/net/ethernet/xilinx/xilinx_axienet_main.c @@ -133,30 +133,6 @@ static inline u32 axienet_dma_in32(struct axienet_local *lp, off_t reg) return ioread32(lp->dma_regs + reg); } -/** - * axienet_dma_out32 - Memory mapped Axi DMA register write. - * @lp: Pointer to axienet local structure - * @reg: Address offset from the base address of the Axi DMA core - * @value: Value to be written into the Axi DMA register - * - * This function writes the desired value into the corresponding Axi DMA - * register. - */ -static inline void axienet_dma_out32(struct axienet_local *lp, - off_t reg, u32 value) -{ - iowrite32(value, lp->dma_regs + reg); -} - -static void axienet_dma_out_addr(struct axienet_local *lp, off_t reg, - dma_addr_t addr) -{ - axienet_dma_out32(lp, reg, lower_32_bits(addr)); - - if (lp->features & XAE_FEATURE_DMA_64BIT) - axienet_dma_out32(lp, reg + 4, upper_32_bits(addr)); -} - static void desc_set_phys_addr(struct axienet_local *lp, dma_addr_t addr, struct axidma_bd *desc) { @@ -2061,6 +2037,11 @@ static int axienet_probe(struct platform_device *pdev) iowrite32(0x0, desc); } } + if (!IS_ENABLED(CONFIG_64BIT) && lp->features & XAE_FEATURE_DMA_64BIT) { + dev_err(&pdev->dev, "64-bit addressable DMA is not compatible with 32-bit archecture\n"); + ret = -EINVAL; + goto cleanup_clk; + } ret = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(addr_width)); if (ret) { |