[PATCH 0/2] Add AST2700 PECI clock support

[PATCH 0/2] Add AST2700 PECI clock support

[Ryan Chen]

Add the PECI clock for the AST2700 SoC1. The PECI clock is a mux
controlled by SCU1_CLK_SEL2 bit 16, selecting between the 25MHz CLKIN
and HPLL/4.

Signed-off-by: Ryan Chen <ryan_chen@aspeedtech.com>
---
Ryan Chen (2):
      dt-bindings: clock: ast2700: add PECI clock
      clk: aspeed: add AST2700 PECI clock

 drivers/clk/aspeed/clk-ast2700.c               | 10 ++++++++++
 include/dt-bindings/clock/aspeed,ast2700-scu.h |  2 ++
 2 files changed, 12 insertions(+)
---
base-commit: 948efecf22e49aa4bf55bb73ec79a0ddcfd38571
change-id: 20260623-peci_clk-ba87e043ee5f

Best regards,
-- 
Ryan Chen <ryan_chen@aspeedtech.com>

[PATCH 1/2] dt-bindings: clock: ast2700: add PECI clock

[Ryan Chen]

Add SCU1_CLK_PECI for the SoC1 PECI controller clock source, and
SCU1_CLK_HPLL_DIV4 which serves as one of the PECI clock mux parents.

Signed-off-by: Ryan Chen <ryan_chen@aspeedtech.com>
---
 include/dt-bindings/clock/aspeed,ast2700-scu.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/include/dt-bindings/clock/aspeed,ast2700-scu.h b/include/dt-bindings/clock/aspeed,ast2700-scu.h
index bacf712e8e04..138f78ce5f07 100644
--- a/include/dt-bindings/clock/aspeed,ast2700-scu.h
+++ b/include/dt-bindings/clock/aspeed,ast2700-scu.h
@@ -163,5 +163,7 @@
 #define SCU1_CLK_GATE_PORTDUSB2CLK	85
 #define SCU1_CLK_GATE_LTPI1TXCLK	86
 #define SCU1_CLK_I3C				87
+#define SCU1_CLK_HPLL_DIV4		88
+#define SCU1_CLK_PECI			89
 
 #endif

-- 
2.34.1

Re: [PATCH 1/2] dt-bindings: clock: ast2700: add PECI clock

[Conor Dooley]

[-- Attachment #1: Type: text/plain, Size: 75 bytes --]

Acked-by: Conor Dooley <conor.dooley@microchip.com>
pw-bot: not-applicable

[-- Attachment #2: signature.asc --]
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[PATCH 2/2] clk: aspeed: add AST2700 PECI clock

[Ryan Chen]

Register the SoC1 PECI clock as a mux selected by SCU1_CLK_SEL2 bit 16,
choosing between the 25MHz CLKIN and HPLL/4. Add the HPLL/4 fixed factor
clock to serve as the second mux parent.

Signed-off-by: Ryan Chen <ryan_chen@aspeedtech.com>
---
 drivers/clk/aspeed/clk-ast2700.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/drivers/clk/aspeed/clk-ast2700.c b/drivers/clk/aspeed/clk-ast2700.c
index 8b7b382f6f3e..5f499ec0e1d1 100644
--- a/drivers/clk/aspeed/clk-ast2700.c
+++ b/drivers/clk/aspeed/clk-ast2700.c
@@ -273,6 +273,13 @@ static const unsigned int sdclk_parent_ids[] = {
 
 static const struct clk_hw *sdclk_parent_hws[ARRAY_SIZE(sdclk_parent_ids)];
 
+static const unsigned int peciclk_parent_ids[] = {
+	SCU1_CLKIN,
+	SCU1_CLK_HPLL_DIV4
+};
+
+static const struct clk_hw *peciclk_parent_hws[ARRAY_SIZE(peciclk_parent_ids)];
+
 #define FIXED_CLK(_id, _name, _rate) \
 	{ \
 		.id = _id,	\
@@ -458,6 +465,7 @@ static const struct ast2700_clk_info ast2700_scu1_clk_info[] __initconst = {
 	PLL_CLK(SCU1_CLK_HPLL, CLK_PLL, "soc1-hpll", SCU1_CLKIN, SCU1_HPLL_PARAM),
 	PLL_CLK(SCU1_CLK_APLL, CLK_PLL, "soc1-apll", SCU1_CLKIN, SCU1_APLL_PARAM),
 	PLL_CLK(SCU1_CLK_DPLL, CLK_PLL, "soc1-dpll", SCU1_CLKIN, SCU1_DPLL_PARAM),
+	FIXED_FACTOR_CLK(SCU1_CLK_HPLL_DIV4, "soc1-hpll_div4", SCU1_CLK_HPLL, 1, 4),
 	FIXED_FACTOR_CLK(SCU1_CLK_APLL_DIV2, "soc1-apll_div2", SCU1_CLK_APLL, 1, 2),
 	FIXED_FACTOR_CLK(SCU1_CLK_APLL_DIV4, "soc1-apll_div4", SCU1_CLK_APLL, 1, 4),
 	FIXED_FACTOR_CLK(SCU1_CLK_CAN, "canclk", SCU1_CLK_APLL, 1, 10),
@@ -481,6 +489,8 @@ static const struct ast2700_clk_info ast2700_scu1_clk_info[] __initconst = {
 		uxclk_parent_hws, SCU1_CLK_SEL2, 0, 2),
 	MUX_CLK(SCU1_CLK_HUXCLK, "huxclk", uxclk_parent_ids, ARRAY_SIZE(uxclk_parent_ids),
 		uxclk_parent_hws, SCU1_CLK_SEL2, 3, 2),
+	MUX_CLK(SCU1_CLK_PECI, "peciclk", peciclk_parent_ids, ARRAY_SIZE(peciclk_parent_ids),
+		peciclk_parent_hws, SCU1_CLK_SEL2, 16, 1),
 	DIVIDER_CLK(SCU1_CLK_SDCLK, "sdclk", SCU1_CLK_SDMUX,
 		    SCU1_CLK_SEL1, 14, 3, ast2700_clk_div_table),
 	PLL_CLK(SCU1_CLK_UARTX, CLK_UART_PLL, "uartxclk", SCU1_CLK_UXCLK, SCU1_UXCLK_CTRL),

-- 
2.34.1