diff mbox series

[6/6] clk: renesas: r9a09g057: Add clock and reset entries for GBETH0/1

Message ID 20250328200105.176129-7-prabhakar.mahadev-lad.rj@bp.renesas.com (mailing list archive)
State Under Review
Headers show
Series clk: renesas: rzv2h: Add clock and reset entries for USB2 and GBETH | expand

Commit Message

Lad, Prabhakar March 28, 2025, 8:01 p.m. UTC 
From: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>

Add clock and reset entries for GBETH instances. Include core clocks for
PTP, sourced from PLLETH, and add PLLs, dividers, and static mux clocks
used as clock sources for the GBETH IP.

Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
---
 drivers/clk/renesas/r9a09g057-cpg.c | 72 +++++++++++++++++++++++++++++
 drivers/clk/renesas/rzv2h-cpg.h     | 11 +++++
 2 files changed, 83 insertions(+)
diff mbox series

Patch

diff --git a/drivers/clk/renesas/r9a09g057-cpg.c b/drivers/clk/renesas/r9a09g057-cpg.c
index 3c40e36259fe..057bfa0e2a57 100644
--- a/drivers/clk/renesas/r9a09g057-cpg.c
+++ b/drivers/clk/renesas/r9a09g057-cpg.c
@@ -29,6 +29,7 @@  enum clk_ids {
 	CLK_PLLDTY,
 	CLK_PLLCA55,
 	CLK_PLLVDO,
+	CLK_PLLETH,
 	CLK_PLLGPU,
 
 	/* Internal Core Clocks */
@@ -49,6 +50,14 @@  enum clk_ids {
 	CLK_PLLVDO_CRU1,
 	CLK_PLLVDO_CRU2,
 	CLK_PLLVDO_CRU3,
+	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_PLLGPU_GEAR,
 
 	/* Module Clocks */
@@ -78,6 +87,19 @@  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-rxc-rxclk" };
+static const char * const smux2_gbe0_txclk[] = { ".plleth_gbe0", "et0-txc-txclk" };
+static const char * const smux2_gbe1_rxclk[] = { ".plleth_gbe1", "et1-rxc-rxclk" };
+static const char * const smux2_gbe1_txclk[] = { ".plleth_gbe1", "et1-txc-txclk" };
+
 static const struct cpg_core_clk r9a09g057_core_clks[] __initconst = {
 	/* External Clock Inputs */
 	DEF_INPUT("audio_extal", CLK_AUDIO_EXTAL),
@@ -90,6 +112,7 @@  static const struct cpg_core_clk r9a09g057_core_clks[] __initconst = {
 	DEF_FIXED(".plldty", CLK_PLLDTY, CLK_QEXTAL, 200, 3),
 	DEF_PLL(".pllca55", CLK_PLLCA55, CLK_QEXTAL, PLLCA55),
 	DEF_FIXED(".pllvdo", CLK_PLLVDO, CLK_QEXTAL, 105, 2),
+	DEF_FIXED(".plleth", CLK_PLLETH, CLK_QEXTAL, 125, 3),
 	DEF_PLL(".pllgpu", CLK_PLLGPU, CLK_QEXTAL, PLLGPU),
 
 	/* Internal Core Clocks */
@@ -115,6 +138,17 @@  static const struct cpg_core_clk r9a09g057_core_clks[] __initconst = {
 	DEF_DDIV(".pllvdo_cru2", CLK_PLLVDO_CRU2, CLK_PLLVDO, CDDIV4_DIVCTL1, dtable_2_4),
 	DEF_DDIV(".pllvdo_cru3", CLK_PLLVDO_CRU3, CLK_PLLVDO, CDDIV4_DIVCTL2, dtable_2_4),
 
+	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_DDIV(".pllgpu_gear", CLK_PLLGPU_GEAR, CLK_PLLGPU, CDDIV3_DIVCTL1, dtable_2_64),
 
 	/* Core Clocks */
@@ -130,6 +164,10 @@  static const struct cpg_core_clk r9a09g057_core_clks[] __initconst = {
 	DEF_FIXED("iotop_0_shclk", R9A09G057_IOTOP_0_SHCLK, CLK_PLLCM33_DIV16, 1, 1),
 	DEF_FIXED("usb2_0_clk_core0", R9A09G057_USB2_0_CLK_CORE0, CLK_QEXTAL, 1, 1),
 	DEF_FIXED("usb2_0_clk_core1", R9A09G057_USB2_0_CLK_CORE1, CLK_QEXTAL, 1, 1),
+	DEF_FIXED("gbeth_0_clk_ptp_ref_i", R9A09G057_GBETH_0_CLK_PTP_REF_I,
+		  CLK_PLLETH_DIV_125_FIX, 1, 1),
+	DEF_FIXED("gbeth_1_clk_ptp_ref_i", R9A09G057_GBETH_1_CLK_PTP_REF_I,
+		  CLK_PLLETH_DIV_125_FIX, 1, 1),
 };
 
 static const struct rzv2h_mod_clk r9a09g057_mod_clks[] __initconst = {
@@ -233,6 +271,38 @@  static const struct rzv2h_mod_clk r9a09g057_mod_clks[] __initconst = {
 						BUS_MSTOP(7, BIT(10))),
 	DEF_MOD("usb2_0_pclk_usbtst1",		CLK_PLLDTY_ACPU_DIV4, 11, 7, 5, 23,
 						BUS_MSTOP(7, BIT(11))),
+	DEF_MOD_EXTERNAL("gbeth_0_clk_tx_i",	CLK_SMUX2_GBE0_TXCLK, 11, 8, 5, 24,
+						BUS_MSTOP(8, BIT(5)),
+						0x300, 8, 1),
+	DEF_MOD_EXTERNAL("gbeth_0_clk_rx_i",	CLK_SMUX2_GBE0_RXCLK, 11, 9, 5, 25,
+						BUS_MSTOP(8, BIT(5)),
+						0x300, 12, 1),
+	DEF_MOD_EXTERNAL("gbeth_0_clk_tx_180_i", CLK_SMUX2_GBE0_TXCLK, 11, 10, 5, 26,
+						BUS_MSTOP(8, BIT(5)),
+						0x300, 8, 1),
+	DEF_MOD_EXTERNAL("gbeth_0_clk_rx_180_i", CLK_SMUX2_GBE0_RXCLK, 11, 11, 5, 27,
+						BUS_MSTOP(8, BIT(5)),
+						0x300, 12, 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_EXTERNAL("gbeth_1_clk_tx_i",	CLK_SMUX2_GBE1_TXCLK, 11, 14, 5, 30,
+						BUS_MSTOP(8, BIT(6)),
+						0x304, 8, 1),
+	DEF_MOD_EXTERNAL("gbeth_1_clk_rx_i",	CLK_SMUX2_GBE1_RXCLK, 11, 15, 5, 31,
+						BUS_MSTOP(8, BIT(6)),
+						0x304, 12, 1),
+	DEF_MOD_EXTERNAL("gbeth_1_clk_tx_180_i", CLK_SMUX2_GBE1_TXCLK, 12, 0, 6, 0,
+						BUS_MSTOP(8, BIT(6)),
+						0x304, 8, 1),
+	DEF_MOD_EXTERNAL("gbeth_1_clk_rx_180_i", CLK_SMUX2_GBE1_RXCLK, 12, 1, 6, 1,
+						BUS_MSTOP(8, BIT(6)),
+						0x304, 12, 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,
@@ -304,6 +374,8 @@  static const struct rzv2h_reset r9a09g057_resets[] __initconst = {
 	DEF_RST(10, 13, 4, 30),		/* USB2_0_U2H1_HRESETN */
 	DEF_RST(10, 14, 4, 31),		/* USB2_0_U2P_EXL_SYSRST */
 	DEF_RST(10, 15, 5, 0),		/* USB2_0_PRESETN */
+	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 */
diff --git a/drivers/clk/renesas/rzv2h-cpg.h b/drivers/clk/renesas/rzv2h-cpg.h
index 0277871e298b..2250436c4c24 100644
--- a/drivers/clk/renesas/rzv2h-cpg.h
+++ b/drivers/clk/renesas/rzv2h-cpg.h
@@ -81,10 +81,13 @@  struct smuxed {
 		.width = _width, \
 	})
 
+#define CPG_SSEL0		(0x300)
+#define CPG_SSEL1		(0x304)
 #define CPG_CDDIV0		(0x400)
 #define CPG_CDDIV1		(0x404)
 #define CPG_CDDIV3		(0x40C)
 #define CPG_CDDIV4		(0x410)
+#define CPG_CSDIV0		(0x500)
 
 #define CDDIV0_DIVCTL1	DDIV_PACK(CPG_CDDIV0, 4, 3, 1)
 #define CDDIV0_DIVCTL2	DDIV_PACK(CPG_CDDIV0, 8, 3, 2)
@@ -99,6 +102,14 @@  struct smuxed {
 #define CDDIV4_DIVCTL1	DDIV_PACK(CPG_CDDIV4, 4, 1, 17)
 #define CDDIV4_DIVCTL2	DDIV_PACK(CPG_CDDIV4, 8, 1, 18)
 
+#define CSDIV0_DIVCTL0	DDIV_PACK(CPG_CSDIV0, 0, 2, CSDIV_NO_MON)
+#define CSDIV0_DIVCTL1	DDIV_PACK(CPG_CSDIV0, 4, 2, CSDIV_NO_MON)
+
+#define SSEL0_SELCTL2	SMUX_PACK(CPG_SSEL0, 8, 1)
+#define SSEL0_SELCTL3	SMUX_PACK(CPG_SSEL0, 12, 1)
+#define SSEL1_SELCTL0	SMUX_PACK(CPG_SSEL1, 0, 1)
+#define SSEL1_SELCTL1	SMUX_PACK(CPG_SSEL1, 4, 1)
+
 #define BUS_MSTOP_IDX_MASK	GENMASK(31, 16)
 #define BUS_MSTOP_BITS_MASK	GENMASK(15, 0)
 #define BUS_MSTOP(idx, mask)	(FIELD_PREP_CONST(BUS_MSTOP_IDX_MASK, (idx)) | \