diff mbox series

[3/4] clk: renesas: r9a09g047: Add support for xspi mux and divider

Message ID 20250303110433.76576-4-biju.das.jz@bp.renesas.com (mailing list archive)
State New
Delegated to: Geert Uytterhoeven
Headers show
Series Add RZ/G3E XSPI clocks | expand

Commit Message

Biju Das March 3, 2025, 11:04 a.m. UTC 
The mux smux2_xspi_clk{0,1} used for selecting spi and spix2 clocks and
pllcm33_xspi divider to select different clock rates. Add support for
both.

Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
---
 drivers/clk/renesas/r9a09g047-cpg.c | 25 +++++++++++++++++++++++++
 drivers/clk/renesas/rzv2h-cpg.h     |  7 +++++++
 2 files changed, 32 insertions(+)
diff mbox series

Patch

diff --git a/drivers/clk/renesas/r9a09g047-cpg.c b/drivers/clk/renesas/r9a09g047-cpg.c
index ff015b3b4d2f..05d8ccc81157 100644
--- a/drivers/clk/renesas/r9a09g047-cpg.c
+++ b/drivers/clk/renesas/r9a09g047-cpg.c
@@ -31,7 +31,13 @@  enum clk_ids {
 	CLK_PLLVDO,
 
 	/* Internal Core Clocks */
+	CLK_PLLCM33_DIV3,
+	CLK_PLLCM33_DIV4,
+	CLK_PLLCM33_DIV5,
 	CLK_PLLCM33_DIV16,
+	CLK_SMUX2_XSPI_CLK0,
+	CLK_SMUX2_XSPI_CLK1,
+	CLK_PLLCM33_XSPI,
 	CLK_PLLCLN_DIV2,
 	CLK_PLLCLN_DIV8,
 	CLK_PLLCLN_DIV16,
@@ -60,6 +66,14 @@  static const struct clk_div_table dtable_2_4[] = {
 	{0, 0},
 };
 
+static const struct clk_div_table dtable_2_16[] = {
+	{0, 2},
+	{1, 4},
+	{2, 8},
+	{3, 16},
+	{0, 0},
+};
+
 static const struct clk_div_table dtable_2_64[] = {
 	{0, 2},
 	{1, 4},
@@ -69,6 +83,10 @@  static const struct clk_div_table dtable_2_64[] = {
 	{0, 0},
 };
 
+/* Mux clock tables */
+static const char * const smux2_xspi_clk0[] = { ".pllcm33_div3", ".pllcm33_div4" };
+static const char * const smux2_xspi_clk1[] = { ".smux2_xspi_clk0", ".pllcm33_div5" };
+
 static const struct cpg_core_clk r9a09g047_core_clks[] __initconst = {
 	/* External Clock Inputs */
 	DEF_INPUT("audio_extal", CLK_AUDIO_EXTAL),
@@ -83,8 +101,15 @@  static const struct cpg_core_clk r9a09g047_core_clks[] __initconst = {
 	DEF_FIXED(".pllvdo", CLK_PLLVDO, CLK_QEXTAL, 105, 2),
 
 	/* Internal Core Clocks */
+	DEF_FIXED(".pllcm33_div3", CLK_PLLCM33_DIV3, CLK_PLLCM33, 1, 3),
+	DEF_FIXED(".pllcm33_div4", CLK_PLLCM33_DIV4, CLK_PLLCM33, 1, 4),
+	DEF_FIXED(".pllcm33_div5", CLK_PLLCM33_DIV5, CLK_PLLCM33, 1, 5),
 	DEF_FIXED(".pllcm33_div16", CLK_PLLCM33_DIV16, CLK_PLLCM33, 1, 16),
 
+	DEF_SMUX(".smux2_xspi_clk0", CLK_SMUX2_XSPI_CLK0, SSEL1_SELCTL2, smux2_xspi_clk0),
+	DEF_SMUX(".smux2_xspi_clk1", CLK_SMUX2_XSPI_CLK1, SSEL1_SELCTL3, smux2_xspi_clk1),
+	DEF_SDIV(".pllcm33_xspi", CLK_PLLCM33_XSPI, CLK_SMUX2_XSPI_CLK1, CSDIV0_DIVCTL3,
+		 dtable_2_16),
 	DEF_FIXED(".pllcln_div2", CLK_PLLCLN_DIV2, CLK_PLLCLN, 1, 2),
 	DEF_FIXED(".pllcln_div8", CLK_PLLCLN_DIV8, CLK_PLLCLN, 1, 8),
 	DEF_FIXED(".pllcln_div16", CLK_PLLCLN_DIV16, CLK_PLLCLN, 1, 16),
diff --git a/drivers/clk/renesas/rzv2h-cpg.h b/drivers/clk/renesas/rzv2h-cpg.h
index 1905e3a4afad..1f0e67f33cf9 100644
--- a/drivers/clk/renesas/rzv2h-cpg.h
+++ b/drivers/clk/renesas/rzv2h-cpg.h
@@ -61,10 +61,12 @@  struct smuxed {
 		.width = _width, \
 	})
 
+#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_DIVCTL2	DDIV_PACK(CPG_CDDIV0, 8, 3, 2)
 #define CDDIV1_DIVCTL0	DDIV_PACK(CPG_CDDIV1, 0, 2, 4)
@@ -76,6 +78,11 @@  struct smuxed {
 #define CDDIV4_DIVCTL1	DDIV_PACK(CPG_CDDIV4, 4, 1, 17)
 #define CDDIV4_DIVCTL2	DDIV_PACK(CPG_CDDIV4, 8, 1, 18)
 
+#define CSDIV0_DIVCTL3	DDIV_PACK(CPG_CSDIV0, 12, 2, CSDIV_NO_MON)
+
+#define SSEL1_SELCTL2	SMUX_PACK(CPG_SSEL1, 8, 1)
+#define SSEL1_SELCTL3	SMUX_PACK(CPG_SSEL1, 12, 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)) | \