Commit 9f93ac8d authored by LABBE Corentin's avatar LABBE Corentin Committed by David S. Miller
Browse files

net-next: stmmac: Add dwmac-sun8i 



The dwmac-sun8i is a heavy hacked version of stmmac hardware by
allwinner.
In fact the only common part is the descriptor management and the first
register function.

Signed-off-by: default avatarCorentin Labbe <clabbe.montjoie@gmail.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent ce5a4ff3

drivers/net/ethernet/stmicro/stmmac/Kconfig

+11 −0
Original line number Diff line number Diff line
@@ -145,6 +145,17 @@ config DWMAC_SUNXI 
	  This selects Allwinner SoC glue layer support for the

	  stmmac device driver. This driver is used for A20/A31

	  GMAC ethernet controller.



config DWMAC_SUN8I

	tristate "Allwinner sun8i GMAC support"

	default ARCH_SUNXI

	depends on OF && (ARCH_SUNXI || COMPILE_TEST)

	---help---

	  Support for Allwinner H3 A83T A64 EMAC ethernet controllers.



	  This selects Allwinner SoC glue layer support for the

	  stmmac device driver. This driver is used for H3/A83T/A64

	  EMAC ethernet controller.

endif



config STMMAC_PCI

drivers/net/ethernet/stmicro/stmmac/Makefile

+1 −0
Original line number Diff line number Diff line
@@ -16,6 +16,7 @@ obj-$(CONFIG_DWMAC_SOCFPGA) += dwmac-altr-socfpga.o 
obj-$(CONFIG_DWMAC_STI)		+= dwmac-sti.o

obj-$(CONFIG_DWMAC_STM32)	+= dwmac-stm32.o

obj-$(CONFIG_DWMAC_SUNXI)	+= dwmac-sunxi.o

obj-$(CONFIG_DWMAC_SUN8I)	+= dwmac-sun8i.o

obj-$(CONFIG_DWMAC_DWC_QOS_ETH)	+= dwmac-dwc-qos-eth.o

obj-$(CONFIG_DWMAC_GENERIC)	+= dwmac-generic.o

stmmac-platform-objs:= stmmac_platform.o

drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c

0 → 100644
+990 −0

File added.

Preview size limit exceeded, changes collapsed.

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

+15 −0
Original line number Diff line number Diff line
@@ -235,6 +235,17 @@ static void stmmac_clk_csr_set(struct stmmac_priv *priv) 
		else if ((clk_rate >= CSR_F_250M) && (clk_rate < CSR_F_300M))

			priv->clk_csr = STMMAC_CSR_250_300M;

	}



	if (priv->plat->has_sun8i) {

		if (clk_rate > 160000000)

			priv->clk_csr = 0x03;

		else if (clk_rate > 80000000)

			priv->clk_csr = 0x02;

		else if (clk_rate > 40000000)

			priv->clk_csr = 0x01;

		else

			priv->clk_csr = 0;

	}

}



static void print_pkt(unsigned char *buf, int len)
@@ -3955,6 +3966,10 @@ static int stmmac_hw_init(struct stmmac_priv *priv) 


	priv->hw = mac;



	/* dwmac-sun8i only work in chain mode */

	if (priv->plat->has_sun8i)

		chain_mode = 1;



	/* To use the chained or ring mode */

	if (priv->synopsys_id >= DWMAC_CORE_4_00) {

		priv->hw->mode = &dwmac4_ring_mode_ops;

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

+7 −2
Original line number Diff line number Diff line
@@ -309,6 +309,12 @@ static int stmmac_dt_phy(struct plat_stmmacenet_data *plat, 
			 struct device_node *np, struct device *dev)

{

	bool mdio = true;

	static const struct of_device_id need_mdio_ids[] = {

		{ .compatible = "snps,dwc-qos-ethernet-4.10" },

		{ .compatible = "allwinner,sun8i-a83t-emac" },

		{ .compatible = "allwinner,sun8i-h3-emac" },

		{ .compatible = "allwinner,sun50i-a64-emac" },

	};



	/* If phy-handle property is passed from DT, use it as the PHY */

	plat->phy_node = of_parse_phandle(np, "phy-handle", 0);
@@ -325,8 +331,7 @@ static int stmmac_dt_phy(struct plat_stmmacenet_data *plat, 
		mdio = false;

	}



	/* exception for dwmac-dwc-qos-eth glue logic */

	if (of_device_is_compatible(np, "snps,dwc-qos-ethernet-4.10")) {

	if (of_match_node(need_mdio_ids, np)) {

		plat->mdio_node = of_get_child_by_name(np, "mdio");

	} else {

		/**