clk: imx: scu: add enet rgmii gpr clocks

enet tx clk actually is sourced from a gpr divider, not default enet
clk. Add enet grp clocks for user to use correctly.

Cc: Abel Vesa <[email protected]>
Cc: Stephen Boyd <[email protected]>
Cc: Shawn Guo <[email protected]>
Signed-off-by: Dong Aisheng <[email protected]>
Reviewed-by: Abel Vesa <[email protected]>
Signed-off-by: Abel Vesa <[email protected]>

Author: Dong Aisheng

drivers/clk/imx/clk-imx8qxp.c

@@ -25,6 +25,16 @@ static const char *dc0_sels[] = {
 	"dc0_bypass0_clk",
 };
 
+static const char * const enet0_rgmii_txc_sels[] = {
+	"enet0_ref_div",
+	"clk_dummy",
+};
+
+static const char * const enet1_rgmii_txc_sels[] = {
+	"enet1_ref_div",
+	"clk_dummy",
+};
+
 static int imx8qxp_clk_probe(struct platform_device *pdev)
 {
 	struct device_node *ccm_node = pdev->dev.of_node;
@@ -80,12 +90,16 @@ static int imx8qxp_clk_probe(struct platform_device *pdev)
 	imx_clk_scu("sdhc0_clk", IMX_SC_R_SDHC_0, IMX_SC_PM_CLK_PER);
 	imx_clk_scu("sdhc1_clk", IMX_SC_R_SDHC_1, IMX_SC_PM_CLK_PER);
 	imx_clk_scu("sdhc2_clk", IMX_SC_R_SDHC_2, IMX_SC_PM_CLK_PER);
-	imx_clk_scu("enet0_clk", IMX_SC_R_ENET_0, IMX_SC_PM_CLK_PER);
+	imx_clk_scu("enet0_root_clk", IMX_SC_R_ENET_0, IMX_SC_PM_CLK_PER);
+	imx_clk_divider_gpr_scu("enet0_ref_div", "enet0_root_clk", IMX_SC_R_ENET_0, IMX_SC_C_CLKDIV);
+	imx_clk_mux_gpr_scu("enet0_rgmii_txc_sel", enet0_rgmii_txc_sels, ARRAY_SIZE(enet0_rgmii_txc_sels), IMX_SC_R_ENET_0, IMX_SC_C_TXCLK);
 	imx_clk_scu("enet0_bypass_clk", IMX_SC_R_ENET_0, IMX_SC_PM_CLK_BYPASS);
-	imx_clk_scu("enet0_rgmii_clk", IMX_SC_R_ENET_0, IMX_SC_PM_CLK_MISC0);
-	imx_clk_scu("enet1_clk", IMX_SC_R_ENET_1, IMX_SC_PM_CLK_PER);
+	imx_clk_scu("enet0_rgmii_rx_clk", IMX_SC_R_ENET_0, IMX_SC_PM_CLK_MISC0);
+	imx_clk_scu("enet1_root_clk", IMX_SC_R_ENET_1, IMX_SC_PM_CLK_PER);
+	imx_clk_divider_gpr_scu("enet1_ref_div", "enet1_root_clk", IMX_SC_R_ENET_1, IMX_SC_C_CLKDIV);
+	imx_clk_mux_gpr_scu("enet1_rgmii_txc_sel", enet1_rgmii_txc_sels, ARRAY_SIZE(enet1_rgmii_txc_sels), IMX_SC_R_ENET_1, IMX_SC_C_TXCLK);
 	imx_clk_scu("enet1_bypass_clk", IMX_SC_R_ENET_1, IMX_SC_PM_CLK_BYPASS);
-	imx_clk_scu("enet1_rgmii_clk", IMX_SC_R_ENET_1, IMX_SC_PM_CLK_MISC0);
+	imx_clk_scu("enet1_rgmii_rx_clk", IMX_SC_R_ENET_1, IMX_SC_PM_CLK_MISC0);
 	imx_clk_scu("gpmi_io_clk", IMX_SC_R_NAND, IMX_SC_PM_CLK_MST_BUS);
 	imx_clk_scu("gpmi_bch_clk", IMX_SC_R_NAND, IMX_SC_PM_CLK_PER);
 	imx_clk_scu("usb3_aclk_div", IMX_SC_R_USB_2, IMX_SC_PM_CLK_PER);