[PATCH v2 2/2] clk: renesas: r9a09g077: Add Ethernet Subsystem core and module clocks

From: Prabhakar
Date: Mon Sep 01 2025 - 14:30:41 EST


From: Lad Prabhakar <prabhakar.mahadev-lad.rj@xxxxxxxxxxxxxx>

Add module and core clocks used by Ethernet Subsystem (Ethernet_SS),
Ethernet MAC (GMAC), Ethernet Switch (ETHSW).

Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@xxxxxxxxxxxxxx>
---
v1->v2:
- Dropped an unnecessary extra line in core clocks
- Sorted the module clocks in ascending order of their IDs
---
drivers/clk/renesas/r9a09g077-cpg.c | 17 ++++++++++++++++-
1 file changed, 16 insertions(+), 1 deletion(-)

diff --git a/drivers/clk/renesas/r9a09g077-cpg.c b/drivers/clk/renesas/r9a09g077-cpg.c
index 1fdd764f9b91..8a544ef48397 100644
--- a/drivers/clk/renesas/r9a09g077-cpg.c
+++ b/drivers/clk/renesas/r9a09g077-cpg.c
@@ -72,7 +72,7 @@ enum rzt2h_clk_types {

enum clk_ids {
/* Core Clock Outputs exported to DT */
- LAST_DT_CORE_CLK = R9A09G077_USB_CLK,
+ LAST_DT_CORE_CLK = R9A09G077_GMAC2_PCLKAH,

/* External Input Clocks */
CLK_EXTAL,
@@ -166,11 +166,21 @@ static const struct cpg_core_clk r9a09g077_core_clks[] __initconst = {
DEF_DIV("CA55S", R9A09G077_CLK_CA55S, CLK_SEL_CLK_PLL0, DIVCA55S,
dtable_1_2),
DEF_FIXED("PCLKGPTL", R9A09G077_CLK_PCLKGPTL, CLK_SEL_CLK_PLL1, 2, 1),
+ DEF_FIXED("PCLKH", R9A09G077_CLK_PCLKH, CLK_SEL_CLK_PLL1, 4, 1),
DEF_FIXED("PCLKM", R9A09G077_CLK_PCLKM, CLK_SEL_CLK_PLL1, 8, 1),
DEF_FIXED("PCLKL", R9A09G077_CLK_PCLKL, CLK_SEL_CLK_PLL1, 16, 1),
+ DEF_FIXED("PCLKAH", R9A09G077_CLK_PCLKAH, CLK_PLL4D1, 6, 1),
DEF_FIXED("PCLKAM", R9A09G077_CLK_PCLKAM, CLK_PLL4D1, 12, 1),
DEF_FIXED("SDHI_CLKHS", R9A09G077_SDHI_CLKHS, CLK_SEL_CLK_PLL2, 1, 1),
DEF_FIXED("USB_CLK", R9A09G077_USB_CLK, CLK_PLL4D1, 48, 1),
+ DEF_FIXED("ETCLKA", R9A09G077_ETCLKA, CLK_SEL_CLK_PLL1, 5, 1),
+ DEF_FIXED("ETCLKB", R9A09G077_ETCLKB, CLK_SEL_CLK_PLL1, 8, 1),
+ DEF_FIXED("ETCLKC", R9A09G077_ETCLKC, CLK_SEL_CLK_PLL1, 10, 1),
+ DEF_FIXED("ETCLKD", R9A09G077_ETCLKD, CLK_SEL_CLK_PLL1, 20, 1),
+ DEF_FIXED("ETCLKE", R9A09G077_ETCLKE, CLK_SEL_CLK_PLL1, 40, 1),
+ DEF_FIXED("GMAC0_PCLKH", R9A09G077_GMAC0_PCLKH, R9A09G077_CLK_PCLKH, 1, 1),
+ DEF_FIXED("GMAC1_PCLKH", R9A09G077_GMAC1_PCLKAH, R9A09G077_CLK_PCLKAH, 1, 1),
+ DEF_FIXED("GMAC2_PCLKH", R9A09G077_GMAC2_PCLKAH, R9A09G077_CLK_PCLKAH, 1, 1),
};

static const struct mssr_mod_clk r9a09g077_mod_clks[] __initconst = {
@@ -181,7 +191,12 @@ static const struct mssr_mod_clk r9a09g077_mod_clks[] __initconst = {
DEF_MOD("sci4fck", 12, CLK_SCI4ASYNC),
DEF_MOD("iic0", 100, R9A09G077_CLK_PCLKL),
DEF_MOD("iic1", 101, R9A09G077_CLK_PCLKL),
+ DEF_MOD("gmac0", 400, R9A09G077_CLK_PCLKM),
+ DEF_MOD("ethsw", 401, R9A09G077_CLK_PCLKM),
+ DEF_MOD("ethss", 403, R9A09G077_CLK_PCLKM),
DEF_MOD("usb", 408, R9A09G077_CLK_PCLKAM),
+ DEF_MOD("gmac1", 416, R9A09G077_CLK_PCLKAM),
+ DEF_MOD("gmac2", 417, R9A09G077_CLK_PCLKAM),
DEF_MOD("sci5fck", 600, CLK_SCI5ASYNC),
DEF_MOD("iic2", 601, R9A09G077_CLK_PCLKL),
DEF_MOD("sdhi0", 1212, R9A09G077_CLK_PCLKAM),
--
2.51.0