clk: renesas: r9a09g047: Add clock and reset signals for the GBETH IPs

Add clock and reset entries for the Gigabit Ethernet Interfaces (GBETH 0-1)
IPs found on the RZ/G3E SoC. This includes various PLLs, dividers, and mux
clocks needed by these two GBETH IPs.

Reviewed-by: Biju Das <[email protected]>
Signed-off-by: John Madieu <[email protected]>
Reviewed-by: Geert Uytterhoeven <[email protected]>
Link: https://lore.kernel.org/[email protected]
Signed-off-by: Geert Uytterhoeven <[email protected]>

Author: John Madieu

drivers/clk/renesas/r9a09g047-cpg.c

@@ -29,6 +29,7 @@ enum clk_ids {
 	CLK_PLLDTY,
 	CLK_PLLCA55,
 	CLK_PLLVDO,
+	CLK_PLLETH,
 
 	/* Internal Core Clocks */
 	CLK_PLLCM33_DIV3,
@@ -46,6 +47,15 @@ enum clk_ids {
 	CLK_PLLDTY_ACPU,
 	CLK_PLLDTY_ACPU_DIV2,
 	CLK_PLLDTY_ACPU_DIV4,
+	CLK_PLLDTY_DIV8,
+	CLK_PLLETH_DIV_250_FIX,
+	CLK_PLLETH_DIV_125_FIX,
+	CLK_CSDIV_PLLETH_GBE0,
+	CLK_CSDIV_PLLETH_GBE1,
+	CLK_SMUX2_GBE0_TXCLK,
+	CLK_SMUX2_GBE0_RXCLK,
+	CLK_SMUX2_GBE1_TXCLK,
+	CLK_SMUX2_GBE1_RXCLK,
 	CLK_PLLDTY_DIV16,
 	CLK_PLLVDO_CRU0,
 	CLK_PLLVDO_GPU,
@@ -85,7 +95,18 @@ static const struct clk_div_table dtable_2_64[] = {
 	{0, 0},
 };
 
+static const struct clk_div_table dtable_2_100[] = {
+	{0, 2},
+	{1, 10},
+	{2, 100},
+	{0, 0},
+};
+
 /* Mux clock tables */
+static const char * const smux2_gbe0_rxclk[] = { ".plleth_gbe0", "et0_rxclk" };
+static const char * const smux2_gbe0_txclk[] = { ".plleth_gbe0", "et0_txclk" };
+static const char * const smux2_gbe1_rxclk[] = { ".plleth_gbe1", "et1_rxclk" };
+static const char * const smux2_gbe1_txclk[] = { ".plleth_gbe1", "et1_txclk" };
 static const char * const smux2_xspi_clk0[] = { ".pllcm33_div3", ".pllcm33_div4" };
 static const char * const smux2_xspi_clk1[] = { ".smux2_xspi_clk0", ".pllcm33_div5" };
 
@@ -100,6 +121,7 @@ static const struct cpg_core_clk r9a09g047_core_clks[] __initconst = {
 	DEF_FIXED(".pllcln", CLK_PLLCLN, CLK_QEXTAL, 200, 3),
 	DEF_FIXED(".plldty", CLK_PLLDTY, CLK_QEXTAL, 200, 3),
 	DEF_PLL(".pllca55", CLK_PLLCA55, CLK_QEXTAL, PLLCA55),
+	DEF_FIXED(".plleth", CLK_PLLETH, CLK_QEXTAL, 125, 3),
 	DEF_FIXED(".pllvdo", CLK_PLLVDO, CLK_QEXTAL, 105, 2),
 
 	/* Internal Core Clocks */
@@ -122,6 +144,18 @@ static const struct cpg_core_clk r9a09g047_core_clks[] __initconst = {
 	DEF_DDIV(".plldty_acpu", CLK_PLLDTY_ACPU, CLK_PLLDTY, CDDIV0_DIVCTL2, dtable_2_64),
 	DEF_FIXED(".plldty_acpu_div2", CLK_PLLDTY_ACPU_DIV2, CLK_PLLDTY_ACPU, 1, 2),
 	DEF_FIXED(".plldty_acpu_div4", CLK_PLLDTY_ACPU_DIV4, CLK_PLLDTY_ACPU, 1, 4),
+	DEF_FIXED(".plldty_div8", CLK_PLLDTY_DIV8, CLK_PLLDTY, 1, 8),
+
+	DEF_FIXED(".plleth_250_fix", CLK_PLLETH_DIV_250_FIX, CLK_PLLETH, 1, 4),
+	DEF_FIXED(".plleth_125_fix", CLK_PLLETH_DIV_125_FIX, CLK_PLLETH_DIV_250_FIX, 1, 2),
+	DEF_CSDIV(".plleth_gbe0", CLK_CSDIV_PLLETH_GBE0, CLK_PLLETH_DIV_250_FIX,
+		  CSDIV0_DIVCTL0, dtable_2_100),
+	DEF_CSDIV(".plleth_gbe1", CLK_CSDIV_PLLETH_GBE1, CLK_PLLETH_DIV_250_FIX,
+		  CSDIV0_DIVCTL1, dtable_2_100),
+	DEF_SMUX(".smux2_gbe0_txclk", CLK_SMUX2_GBE0_TXCLK, SSEL0_SELCTL2, smux2_gbe0_txclk),
+	DEF_SMUX(".smux2_gbe0_rxclk", CLK_SMUX2_GBE0_RXCLK, SSEL0_SELCTL3, smux2_gbe0_rxclk),
+	DEF_SMUX(".smux2_gbe1_txclk", CLK_SMUX2_GBE1_TXCLK, SSEL1_SELCTL0, smux2_gbe1_txclk),
+	DEF_SMUX(".smux2_gbe1_rxclk", CLK_SMUX2_GBE1_RXCLK, SSEL1_SELCTL1, smux2_gbe1_rxclk),
 	DEF_FIXED(".plldty_div16", CLK_PLLDTY_DIV16, CLK_PLLDTY, 1, 16),
 
 	DEF_DDIV(".pllvdo_cru0", CLK_PLLVDO_CRU0, CLK_PLLVDO, CDDIV3_DIVCTL3, dtable_2_4),
@@ -139,6 +173,10 @@ static const struct cpg_core_clk r9a09g047_core_clks[] __initconst = {
 		 CDDIV1_DIVCTL3, dtable_1_8),
 	DEF_FIXED("iotop_0_shclk", R9A09G047_IOTOP_0_SHCLK, CLK_PLLCM33_DIV16, 1, 1),
 	DEF_FIXED("spi_clk_spi", R9A09G047_SPI_CLK_SPI, CLK_PLLCM33_XSPI, 1, 2),
+	DEF_FIXED("gbeth_0_clk_ptp_ref_i", R9A09G047_GBETH_0_CLK_PTP_REF_I,
+		  CLK_PLLETH_DIV_125_FIX, 1, 1),
+	DEF_FIXED("gbeth_1_clk_ptp_ref_i", R9A09G047_GBETH_1_CLK_PTP_REF_I,
+		  CLK_PLLETH_DIV_125_FIX, 1, 1),
 };
 
 static const struct rzv2h_mod_clk r9a09g047_mod_clks[] __initconst = {
@@ -220,6 +258,30 @@ static const struct rzv2h_mod_clk r9a09g047_mod_clks[] __initconst = {
 						BUS_MSTOP(8, BIT(4))),
 	DEF_MOD("sdhi_2_aclk",			CLK_PLLDTY_ACPU_DIV4, 10, 14, 5, 14,
 						BUS_MSTOP(8, BIT(4))),
+	DEF_MOD_MUX_EXTERNAL("gbeth_0_clk_tx_i", CLK_SMUX2_GBE0_TXCLK, 11, 8, 5, 24,
+						BUS_MSTOP(8, BIT(5)), 1),
+	DEF_MOD_MUX_EXTERNAL("gbeth_0_clk_rx_i", CLK_SMUX2_GBE0_RXCLK, 11, 9, 5, 25,
+						BUS_MSTOP(8, BIT(5)), 1),
+	DEF_MOD_MUX_EXTERNAL("gbeth_0_clk_tx_180_i", CLK_SMUX2_GBE0_TXCLK, 11, 10, 5, 26,
+						BUS_MSTOP(8, BIT(5)), 1),
+	DEF_MOD_MUX_EXTERNAL("gbeth_0_clk_rx_180_i", CLK_SMUX2_GBE0_RXCLK, 11, 11, 5, 27,
+						BUS_MSTOP(8, BIT(5)), 1),
+	DEF_MOD("gbeth_0_aclk_csr_i",		CLK_PLLDTY_DIV8, 11, 12, 5, 28,
+						BUS_MSTOP(8, BIT(5))),
+	DEF_MOD("gbeth_0_aclk_i",		CLK_PLLDTY_DIV8, 11, 13, 5, 29,
+						BUS_MSTOP(8, BIT(5))),
+	DEF_MOD_MUX_EXTERNAL("gbeth_1_clk_tx_i", CLK_SMUX2_GBE1_TXCLK, 11, 14, 5, 30,
+						BUS_MSTOP(8, BIT(6)), 1),
+	DEF_MOD_MUX_EXTERNAL("gbeth_1_clk_rx_i", CLK_SMUX2_GBE1_RXCLK, 11, 15, 5, 31,
+						BUS_MSTOP(8, BIT(6)), 1),
+	DEF_MOD_MUX_EXTERNAL("gbeth_1_clk_tx_180_i", CLK_SMUX2_GBE1_TXCLK, 12, 0, 6, 0,
+						BUS_MSTOP(8, BIT(6)), 1),
+	DEF_MOD_MUX_EXTERNAL("gbeth_1_clk_rx_180_i", CLK_SMUX2_GBE1_RXCLK, 12, 1, 6, 1,
+						BUS_MSTOP(8, BIT(6)), 1),
+	DEF_MOD("gbeth_1_aclk_csr_i",		CLK_PLLDTY_DIV8, 12, 2, 6, 2,
+						BUS_MSTOP(8, BIT(6))),
+	DEF_MOD("gbeth_1_aclk_i",		CLK_PLLDTY_DIV8, 12, 3, 6, 3,
+						BUS_MSTOP(8, BIT(6))),
 	DEF_MOD("cru_0_aclk",			CLK_PLLDTY_ACPU_DIV2, 13, 2, 6, 18,
 						BUS_MSTOP(9, BIT(4))),
 	DEF_MOD_NO_PM("cru_0_vclk",		CLK_PLLVDO_CRU0, 13, 3, 6, 19,
@@ -263,6 +325,8 @@ static const struct rzv2h_reset r9a09g047_resets[] __initconst = {
 	DEF_RST(10, 7, 4, 24),		/* SDHI_0_IXRST */
 	DEF_RST(10, 8, 4, 25),		/* SDHI_1_IXRST */
 	DEF_RST(10, 9, 4, 26),		/* SDHI_2_IXRST */
+	DEF_RST(11, 0, 5, 1),		/* GBETH_0_ARESETN_I */
+	DEF_RST(11, 1, 5, 2),		/* GBETH_1_ARESETN_I */
 	DEF_RST(12, 5, 5, 22),		/* CRU_0_PRESETN */
 	DEF_RST(12, 6, 5, 23),		/* CRU_0_ARESETN */
 	DEF_RST(12, 7, 5, 24),		/* CRU_0_S_RESETN */