diff mbox series

[v2,1/2] clk: renesas: r9a09g047: Add support for xspi mux and divider

Message ID 20250408113845.130950-2-biju.das.jz@bp.renesas.com (mailing list archive)
State Under Review
Headers show
Series Add RZ/G3E XSPI clocks | expand

Commit Message

Biju Das April 8, 2025, 11:38 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>
---
v1->v2:
 * Updated LAST_DT_CORE_CLK macro
 * Replaced DEF_SDIV->DEF_CSDIV macro
 * Added spi_clk_spi as core clk
 * Updated CSDIV0_DIVCTL3 macro.
 This patch depend upon 
[1] https://lore.kernel.org/all/20250401143537.224047-2-biju.das.jz@bp.renesas.com/
[2] https://lore.kernel.org/all/20250407165202.197570-4-prabhakar.mahadev-lad.rj@bp.renesas.com/
---
 drivers/clk/renesas/r9a09g047-cpg.c | 28 +++++++++++++++++++++++++++-
 drivers/clk/renesas/rzv2h-cpg.h     |  3 +++
 2 files changed, 30 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/drivers/clk/renesas/r9a09g047-cpg.c b/drivers/clk/renesas/r9a09g047-cpg.c
index 7b9311af603e..741ee025ce02 100644
--- a/drivers/clk/renesas/r9a09g047-cpg.c
+++ b/drivers/clk/renesas/r9a09g047-cpg.c
@@ -16,7 +16,7 @@ 
 
 enum clk_ids {
 	/* Core Clock Outputs exported to DT */
-	LAST_DT_CORE_CLK = R9A09G047_IOTOP_0_SHCLK,
+	LAST_DT_CORE_CLK = R9A09G047_SPI_CLK_SPI,
 
 	/* External Input Clocks */
 	CLK_AUDIO_EXTAL,
@@ -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_CSDIV(".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),
@@ -108,6 +133,7 @@  static const struct cpg_core_clk r9a09g047_core_clks[] __initconst = {
 	DEF_DDIV("ca55_0_coreclk3", R9A09G047_CA55_0_CORECLK3, CLK_PLLCA55,
 		 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),
 };
 
 static const struct rzv2h_mod_clk r9a09g047_mod_clks[] __initconst = {
diff --git a/drivers/clk/renesas/rzv2h-cpg.h b/drivers/clk/renesas/rzv2h-cpg.h
index e730179d92aa..dd75a3682b19 100644
--- a/drivers/clk/renesas/rzv2h-cpg.h
+++ b/drivers/clk/renesas/rzv2h-cpg.h
@@ -116,11 +116,14 @@  struct smuxed {
 
 #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 CSDIV0_DIVCTL3	DDIV_PACK_NO_RMW(CPG_CSDIV0, 12, 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 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)