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Message-ID: <20250915142908.18737-1-nicolas.ferre@microchip.com>
Date: Mon, 15 Sep 2025 16:29:07 +0200
From: <nicolas.ferre@...rochip.com>
To: Alexandre Belloni <alexandre.belloni@...tlin.com>, Claudiu Beznea
<claudiu.beznea@...on.dev>
CC: <linux-kernel@...r.kernel.org>, <linux-arm-kernel@...ts.infradead.org>,
Cristian Birsan <cristian.birsan@...rochip.com>, Ryan Wanner
<ryan.wanner@...rochip.com>, Varshini Rajendran
<varshini.rajendran@...rochip.com>, Mihai Sain <mihai.sain@...rochip.com>
Subject: [PATCH 1/2] clk: at91: add ACR in all PLL settings
From: Cristian Birsan <cristian.birsan@...rochip.com>
Add the ACR register to all PLL settings and provide the correct
ACR value for each PLL used in different SoCs.
Suggested-by: Mihai Sain <mihai.sain@...rochip.com>
Signed-off-by: Cristian Birsan <cristian.birsan@...rochip.com>
[nicolas.ferre@...rochip.com: add sama7d65 and review commit message]
Signed-off-by: Nicolas Ferre <nicolas.ferre@...rochip.com>
---
drivers/clk/at91/pmc.h | 1 +
drivers/clk/at91/sam9x60.c | 2 ++
drivers/clk/at91/sam9x7.c | 5 +++++
drivers/clk/at91/sama7d65.c | 4 ++++
drivers/clk/at91/sama7g5.c | 2 ++
5 files changed, 14 insertions(+)
diff --git a/drivers/clk/at91/pmc.h b/drivers/clk/at91/pmc.h
index 4fb29ca111f7..5daa32c4cf25 100644
--- a/drivers/clk/at91/pmc.h
+++ b/drivers/clk/at91/pmc.h
@@ -80,6 +80,7 @@ struct clk_pll_characteristics {
u16 *icpll;
u8 *out;
u8 upll : 1;
+ u32 acr;
};
struct clk_programmable_layout {
diff --git a/drivers/clk/at91/sam9x60.c b/drivers/clk/at91/sam9x60.c
index db6db9e2073e..18baf4a256f4 100644
--- a/drivers/clk/at91/sam9x60.c
+++ b/drivers/clk/at91/sam9x60.c
@@ -36,6 +36,7 @@ static const struct clk_pll_characteristics plla_characteristics = {
.num_output = ARRAY_SIZE(plla_outputs),
.output = plla_outputs,
.core_output = core_outputs,
+ .acr = UL(0x00020010),
};
static const struct clk_range upll_outputs[] = {
@@ -48,6 +49,7 @@ static const struct clk_pll_characteristics upll_characteristics = {
.output = upll_outputs,
.core_output = core_outputs,
.upll = true,
+ .acr = UL(0x12023010), /* fIN = [18 MHz, 32 MHz]*/
};
static const struct clk_pll_layout pll_frac_layout = {
diff --git a/drivers/clk/at91/sam9x7.c b/drivers/clk/at91/sam9x7.c
index 740f52906f6b..89868a0aeaba 100644
--- a/drivers/clk/at91/sam9x7.c
+++ b/drivers/clk/at91/sam9x7.c
@@ -107,6 +107,7 @@ static const struct clk_pll_characteristics plla_characteristics = {
.num_output = ARRAY_SIZE(plla_outputs),
.output = plla_outputs,
.core_output = plla_core_outputs,
+ .acr = UL(0x00020010), /* Old ACR_DEFAULT_PLLA value */
};
static const struct clk_pll_characteristics upll_characteristics = {
@@ -115,6 +116,7 @@ static const struct clk_pll_characteristics upll_characteristics = {
.output = upll_outputs,
.core_output = upll_core_outputs,
.upll = true,
+ .acr = UL(0x12023010), /* fIN=[20 MHz, 32 MHz] */
};
static const struct clk_pll_characteristics lvdspll_characteristics = {
@@ -122,6 +124,7 @@ static const struct clk_pll_characteristics lvdspll_characteristics = {
.num_output = ARRAY_SIZE(lvdspll_outputs),
.output = lvdspll_outputs,
.core_output = lvdspll_core_outputs,
+ .acr = UL(0x12023010), /* fIN=[20 MHz, 32 MHz] */
};
static const struct clk_pll_characteristics audiopll_characteristics = {
@@ -129,6 +132,7 @@ static const struct clk_pll_characteristics audiopll_characteristics = {
.num_output = ARRAY_SIZE(audiopll_outputs),
.output = audiopll_outputs,
.core_output = audiopll_core_outputs,
+ .acr = UL(0x12023010), /* fIN=[20 MHz, 32 MHz] */
};
static const struct clk_pll_characteristics plladiv2_characteristics = {
@@ -136,6 +140,7 @@ static const struct clk_pll_characteristics plladiv2_characteristics = {
.num_output = ARRAY_SIZE(plladiv2_outputs),
.output = plladiv2_outputs,
.core_output = plladiv2_core_outputs,
+ .acr = UL(0x00020010), /* Old ACR_DEFAULT_PLLA value */
};
/* Layout for fractional PLL ID PLLA. */
diff --git a/drivers/clk/at91/sama7d65.c b/drivers/clk/at91/sama7d65.c
index a5d40df8b2f2..7dee2b160ffb 100644
--- a/drivers/clk/at91/sama7d65.c
+++ b/drivers/clk/at91/sama7d65.c
@@ -138,6 +138,7 @@ static const struct clk_pll_characteristics cpu_pll_characteristics = {
.num_output = ARRAY_SIZE(cpu_pll_outputs),
.output = cpu_pll_outputs,
.core_output = core_outputs,
+ .acr = UL(0x00070010),
};
/* PLL characteristics. */
@@ -146,6 +147,7 @@ static const struct clk_pll_characteristics pll_characteristics = {
.num_output = ARRAY_SIZE(pll_outputs),
.output = pll_outputs,
.core_output = core_outputs,
+ .acr = UL(0x00070010),
};
static const struct clk_pll_characteristics lvdspll_characteristics = {
@@ -153,6 +155,7 @@ static const struct clk_pll_characteristics lvdspll_characteristics = {
.num_output = ARRAY_SIZE(lvdspll_outputs),
.output = lvdspll_outputs,
.core_output = lvdspll_core_outputs,
+ .acr = UL(0x00070010),
};
static const struct clk_pll_characteristics upll_characteristics = {
@@ -160,6 +163,7 @@ static const struct clk_pll_characteristics upll_characteristics = {
.num_output = ARRAY_SIZE(upll_outputs),
.output = upll_outputs,
.core_output = upll_core_outputs,
+ .acr = UL(0x12020010),
.upll = true,
};
diff --git a/drivers/clk/at91/sama7g5.c b/drivers/clk/at91/sama7g5.c
index 8385badc1c70..1340c2b00619 100644
--- a/drivers/clk/at91/sama7g5.c
+++ b/drivers/clk/at91/sama7g5.c
@@ -113,6 +113,7 @@ static const struct clk_pll_characteristics cpu_pll_characteristics = {
.num_output = ARRAY_SIZE(cpu_pll_outputs),
.output = cpu_pll_outputs,
.core_output = core_outputs,
+ .acr = UL(0x00070010),
};
/* PLL characteristics. */
@@ -121,6 +122,7 @@ static const struct clk_pll_characteristics pll_characteristics = {
.num_output = ARRAY_SIZE(pll_outputs),
.output = pll_outputs,
.core_output = core_outputs,
+ .acr = UL(0x00070010),
};
/*
--
2.43.0
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