Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit fa067467 authored by Sonic Zhang's avatar Sonic Zhang Committed by David S. Miller
Browse files

stmmac: Add an optional device tree property "snps,burst_len" 



This property define the AXI bug lenth.

Signed-off-by: default avatarSonic Zhang <sonic.zhang@analog.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent dec2165f

Documentation/devicetree/bindings/net/stmmac.txt

+1 −0
Original line number Diff line number Diff line
@@ -43,6 +43,7 @@ Optional properties: 
  available this clock is used for programming the Timestamp Addend Register.

  If not passed then the system clock will be used and this is fine on some

  platforms.

- snps,burst_len: The AXI burst lenth value of the AXI BUS MODE register.



Examples:

drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c

+3 −0
Original line number Diff line number Diff line
@@ -235,6 +235,9 @@ static int stmmac_probe_config_dt(struct platform_device *pdev, 
			of_property_read_bool(np, "snps,fixed-burst");

		dma_cfg->mixed_burst =

			of_property_read_bool(np, "snps,mixed-burst");

		of_property_read_u32(np, "snps,burst_len", &dma_cfg->burst_len);

		if (dma_cfg->burst_len < 0 || dma_cfg->burst_len > 256)

			dma_cfg->burst_len = 0;

	}

	plat->force_thresh_dma_mode = of_property_read_bool(np, "snps,force_thresh_dma_mode");

	if (plat->force_thresh_dma_mode) {