[PATCH 6.1.y-cip 10/85] clk: renesas: r9a09g057: Add CA55 core clocks

Tommaso Merciai
2025-03-13T01:32:55Z

From: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>

commit 8cce33aed0b6383e91bb9d26dae11b1293101381 upstream.

Add CA55 core clocks which are derived from PLLCA55.

Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/20240918135957.290101-1-prabhakar.mahadev-lad.rj@bp.renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
---
drivers/clk/renesas/r9a09g057-cpg.c | 16 ++++++++++++++++
drivers/clk/renesas/rzv2h-cpg.h | 5 +++++
2 files changed, 21 insertions(+)

diff --git a/drivers/clk/renesas/r9a09g057-cpg.c b/drivers/clk/renesas/r9a09g057-cpg.c
index 3ee32db5c0af..a426d0aa4592 100644
--- a/drivers/clk/renesas/r9a09g057-cpg.c
+++ b/drivers/clk/renesas/r9a09g057-cpg.c
@@ -41,6 +41,14 @@ enum clk_ids {
MOD_CLK_BASE,
};

+static const struct clk_div_table dtable_1_8[] = {
+ {0, 1},
+ {1, 2},
+ {2, 4},
+ {3, 8},
+ {0, 0},
+};
+
static const struct clk_div_table dtable_2_64[] = {
{0, 2},
{1, 4},
@@ -74,6 +82,14 @@ static const struct cpg_core_clk r9a09g057_core_clks[] __initconst = {

/* Core Clocks */
DEF_FIXED("sys_0_pclk", R9A09G057_SYS_0_PCLK, CLK_QEXTAL, 1, 1),
+ DEF_DDIV("ca55_0_coreclk0", R9A09G057_CA55_0_CORE_CLK0, CLK_PLLCA55,
+ CDDIV1_DIVCTL0, dtable_1_8),
+ DEF_DDIV("ca55_0_coreclk1", R9A09G057_CA55_0_CORE_CLK1, CLK_PLLCA55,
+ CDDIV1_DIVCTL1, dtable_1_8),
+ DEF_DDIV("ca55_0_coreclk2", R9A09G057_CA55_0_CORE_CLK2, CLK_PLLCA55,
+ CDDIV1_DIVCTL2, dtable_1_8),
+ DEF_DDIV("ca55_0_coreclk3", R9A09G057_CA55_0_CORE_CLK3, CLK_PLLCA55,
+ CDDIV1_DIVCTL3, dtable_1_8),
DEF_FIXED("iotop_0_shclk", R9A09G057_IOTOP_0_SHCLK, CLK_PLLCM33_DIV16, 1, 1),
};

diff --git a/drivers/clk/renesas/rzv2h-cpg.h b/drivers/clk/renesas/rzv2h-cpg.h
index 60016b6122a9..0723df4c1134 100644
--- a/drivers/clk/renesas/rzv2h-cpg.h
+++ b/drivers/clk/renesas/rzv2h-cpg.h
@@ -32,8 +32,13 @@ struct ddiv {
})

#define CPG_CDDIV0 (0x400)
+#define CPG_CDDIV1 (0x404)

#define CDDIV0_DIVCTL2 DDIV_PACK(CPG_CDDIV0, 8, 3, 2)
+#define CDDIV1_DIVCTL0 DDIV_PACK(CPG_CDDIV1, 0, 2, 4)
+#define CDDIV1_DIVCTL1 DDIV_PACK(CPG_CDDIV1, 4, 2, 5)
+#define CDDIV1_DIVCTL2 DDIV_PACK(CPG_CDDIV1, 8, 2, 6)
+#define CDDIV1_DIVCTL3 DDIV_PACK(CPG_CDDIV1, 12, 2, 7)

/**
* Definitions of CPG Core Clocks
--
2.43.0