[PATCH v9 0/9] Initial Marvell PXA1908 support

[PATCH v9 0/9] Initial Marvell PXA1908 support

[Duje Mihanović]

Hello,

This series adds initial support for the Marvell PXA1908 SoC and
"samsung,coreprimevelte", a smartphone using the SoC.

USB works and the phone can boot a rootfs from an SD card, but there are
some warnings in the dmesg:

During SMP initialization:
[    0.006519] CPU features: SANITY CHECK: Unexpected variation in SYS_CNTFRQ_EL0. Boot CPU: 0x000000018cba80, CPU1: 0x00000000000000
[    0.006542] CPU features: Unsupported CPU feature variation detected.
[    0.006589] CPU1: Booted secondary processor 0x0000000001 [0x410fd032]
[    0.010710] Detected VIPT I-cache on CPU2
[    0.010716] CPU features: SANITY CHECK: Unexpected variation in SYS_CNTFRQ_EL0. Boot CPU: 0x000000018cba80, CPU2: 0x00000000000000
[    0.010758] CPU2: Booted secondary processor 0x0000000002 [0x410fd032]
[    0.014849] Detected VIPT I-cache on CPU3
[    0.014855] CPU features: SANITY CHECK: Unexpected variation in SYS_CNTFRQ_EL0. Boot CPU: 0x000000018cba80, CPU3: 0x00000000000000
[    0.014895] CPU3: Booted secondary processor 0x0000000003 [0x410fd032]

SMMU probing fails:
[    0.101798] arm-smmu c0010000.iommu: probing hardware configuration...
[    0.101809] arm-smmu c0010000.iommu: SMMUv1 with:
[    0.101816] arm-smmu c0010000.iommu:         no translation support!

A 3.14 based Marvell tree is available on GitHub
acorn-marvell/brillo_pxa_kernel, and a Samsung one on GitHub
CoderCharmander/g361f-kernel.

Andreas Färber attempted to upstream support for this SoC in 2017:
https://lore.kernel.org/lkml/20170222022929.10540-1-afaerber@suse.de/

Signed-off-by: Duje Mihanović <duje.mihanovic@skole.hr>

Changes in v9:
- Update trailers and rebase on v6.9-rc2, no changes
- Link to v8: https://lore.kernel.org/20240110-pxa1908-lkml-v8-0-fea768a59474@skole.hr

Changes in v8:
- Drop SSPA patch
- Drop broken-cd from eMMC node
- Specify S-Boot hardcoded initramfs location in device tree
- Add ARM PMU node
- Correct inverted modem memory base and size
- Update trailers
- Rebase on next-20240110
- Link to v7: https://lore.kernel.org/20231102-pxa1908-lkml-v7-0-cabb1a0cb52b@skole.hr
  and https://lore.kernel.org/20231102152033.5511-1-duje.mihanovic@skole.hr

Changes in v7:
- Suppress SND_MMP_SOC_SSPA on ARM64
- Update trailers
- Rebase on v6.6-rc7
- Link to v6: https://lore.kernel.org/r/20231010-pxa1908-lkml-v6-0-b2fe09240cf8@skole.hr

Changes in v6:
- Address maintainer comments:
  - Add "marvell,pxa1908-padconf" binding to pinctrl-single driver
- Drop GPIO patch as it's been pulled
- Update trailers
- Rebase on v6.6-rc5
- Link to v5: https://lore.kernel.org/r/20230812-pxa1908-lkml-v5-0-a5d51937ee34@skole.hr

Changes in v5:
- Address maintainer comments:
  - Move *_NR_CLKS to clock driver from dt binding file
- Allocate correct number of clocks for each block instead of blindly
  allocating 50 for each
- Link to v4: https://lore.kernel.org/r/20230807-pxa1908-lkml-v4-0-cb387d73b452@skole.hr

Changes in v4:
- Address maintainer comments:
  - Relicense clock binding file to BSD-2
- Add pinctrl-names to SD card node
- Add vgic registers to GIC node
- Rebase on v6.5-rc5
- Link to v3: https://lore.kernel.org/r/20230804-pxa1908-lkml-v3-0-8e48fca37099@skole.hr

Changes in v3:
- Address maintainer comments:
  - Drop GPIO dynamic allocation patch
  - Move clock register offsets into driver (instead of bindings file)
  - Add missing Tested-by trailer to u32_fract patch
  - Move SoC binding to arm/mrvl/mrvl.yaml
- Add serial0 alias and stdout-path to board dts to enable UART
  debugging
- Rebase on v6.5-rc4
- Link to v2: https://lore.kernel.org/r/20230727162909.6031-1-duje.mihanovic@skole.hr

Changes in v2:
- Remove earlycon patch as it's been merged into tty-next
- Address maintainer comments:
  - Clarify GPIO regressions on older PXA platforms
  - Add Fixes tag to commit disabling GPIO pinctrl calls for this SoC
  - Add missing includes to clock driver
  - Clock driver uses HZ_PER_MHZ, u32_fract and GENMASK
  - Dual license clock bindings
  - Change clock IDs to decimal
  - Fix underscores in dt node names
  - Move chosen node to top of board dts
  - Clean up documentation
  - Reorder commits
  - Drop pxa,rev-id
- Rename muic-i2c to i2c-muic
- Reword some commits
- Move framebuffer node to chosen
- Add aliases for mmc nodes
- Rebase on v6.5-rc3
- Link to v1: https://lore.kernel.org/r/20230721210042.21535-1-duje.mihanovic@skole.hr

---
Andy Shevchenko (1):
      clk: mmp: Switch to use struct u32_fract instead of custom one

Duje Mihanović (8):
      dt-bindings: pinctrl: pinctrl-single: add marvell,pxa1908-padconf compatible
      pinctrl: single: add marvell,pxa1908-padconf compatible
      dt-bindings: clock: Add Marvell PXA1908 clock bindings
      clk: mmp: Add Marvell PXA1908 clock driver
      dt-bindings: marvell: Document PXA1908 SoC
      arm64: Kconfig.platforms: Add config for Marvell PXA1908 platform
      arm64: dts: Add DTS for Marvell PXA1908 and samsung,coreprimevelte
      MAINTAINERS: add myself as Marvell PXA1908 maintainer

 .../devicetree/bindings/arm/mrvl/mrvl.yaml         |   5 +
 .../devicetree/bindings/clock/marvell,pxa1908.yaml |  48 +++
 .../bindings/pinctrl/pinctrl-single.yaml           |   4 +
 MAINTAINERS                                        |   9 +
 arch/arm64/Kconfig.platforms                       |   8 +
 arch/arm64/boot/dts/marvell/Makefile               |   3 +
 .../dts/marvell/pxa1908-samsung-coreprimevelte.dts | 336 +++++++++++++++++++++
 arch/arm64/boot/dts/marvell/pxa1908.dtsi           | 304 +++++++++++++++++++
 drivers/clk/mmp/Makefile                           |   2 +-
 drivers/clk/mmp/clk-frac.c                         |  57 ++--
 drivers/clk/mmp/clk-of-mmp2.c                      |  26 +-
 drivers/clk/mmp/clk-of-pxa168.c                    |   4 +-
 drivers/clk/mmp/clk-of-pxa1908.c                   | 328 ++++++++++++++++++++
 drivers/clk/mmp/clk-of-pxa1928.c                   |   6 +-
 drivers/clk/mmp/clk-of-pxa910.c                    |   4 +-
 drivers/clk/mmp/clk.h                              |  10 +-
 drivers/pinctrl/pinctrl-single.c                   |   1 +
 include/dt-bindings/clock/marvell,pxa1908.h        |  88 ++++++
 18 files changed, 1186 insertions(+), 57 deletions(-)
---
base-commit: 39cd87c4eb2b893354f3b850f916353f2658ae6f
change-id: 20230803-pxa1908-lkml-6830e8da45c7

Best regards,
-- 
Duje Mihanović <duje.mihanovic@skole.hr>

[PATCH v9 1/9] clk: mmp: Switch to use struct u32_fract instead of custom one

[Duje Mihanović]

From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>

The struct mmp_clk_factor_tbl repeats the generic struct u32_fract.
Kill the custom one and use the generic one instead.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Tested-by: Duje Mihanović <duje.mihanovic@skole.hr>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Duje Mihanović <duje.mihanovic@skole.hr>
---
 drivers/clk/mmp/clk-frac.c       | 57 ++++++++++++++++++++--------------------
 drivers/clk/mmp/clk-of-mmp2.c    | 26 +++++++++---------
 drivers/clk/mmp/clk-of-pxa168.c  |  4 +--
 drivers/clk/mmp/clk-of-pxa1928.c |  6 ++---
 drivers/clk/mmp/clk-of-pxa910.c  |  4 +--
 drivers/clk/mmp/clk.h            | 10 +++----
 6 files changed, 51 insertions(+), 56 deletions(-)

diff --git a/drivers/clk/mmp/clk-frac.c b/drivers/clk/mmp/clk-frac.c
index 1b90867b60c4..6556f6ada2e8 100644
--- a/drivers/clk/mmp/clk-frac.c
+++ b/drivers/clk/mmp/clk-frac.c
@@ -26,14 +26,15 @@ static long clk_factor_round_rate(struct clk_hw *hw, unsigned long drate,
 {
 	struct mmp_clk_factor *factor = to_clk_factor(hw);
 	u64 rate = 0, prev_rate;
+	struct u32_fract *d;
 	int i;
 
 	for (i = 0; i < factor->ftbl_cnt; i++) {
-		prev_rate = rate;
-		rate = *prate;
-		rate *= factor->ftbl[i].den;
-		do_div(rate, factor->ftbl[i].num * factor->masks->factor);
+		d = &factor->ftbl[i];
 
+		prev_rate = rate;
+		rate = (u64)(*prate) * d->denominator;
+		do_div(rate, d->numerator * factor->masks->factor);
 		if (rate > drate)
 			break;
 	}
@@ -52,23 +53,22 @@ static unsigned long clk_factor_recalc_rate(struct clk_hw *hw,
 {
 	struct mmp_clk_factor *factor = to_clk_factor(hw);
 	struct mmp_clk_factor_masks *masks = factor->masks;
-	unsigned int val, num, den;
+	struct u32_fract d;
+	unsigned int val;
 	u64 rate;
 
 	val = readl_relaxed(factor->base);
 
 	/* calculate numerator */
-	num = (val >> masks->num_shift) & masks->num_mask;
+	d.numerator = (val >> masks->num_shift) & masks->num_mask;
 
 	/* calculate denominator */
-	den = (val >> masks->den_shift) & masks->den_mask;
-
-	if (!den)
+	d.denominator = (val >> masks->den_shift) & masks->den_mask;
+	if (!d.denominator)
 		return 0;
 
-	rate = parent_rate;
-	rate *= den;
-	do_div(rate, num * factor->masks->factor);
+	rate = (u64)parent_rate * d.denominator;
+	do_div(rate, d.numerator * factor->masks->factor);
 
 	return rate;
 }
@@ -82,18 +82,18 @@ static int clk_factor_set_rate(struct clk_hw *hw, unsigned long drate,
 	int i;
 	unsigned long val;
 	unsigned long flags = 0;
+	struct u32_fract *d;
 	u64 rate = 0;
 
 	for (i = 0; i < factor->ftbl_cnt; i++) {
-		rate = prate;
-		rate *= factor->ftbl[i].den;
-		do_div(rate, factor->ftbl[i].num * factor->masks->factor);
+		d = &factor->ftbl[i];
 
+		rate = (u64)prate * d->denominator;
+		do_div(rate, d->numerator * factor->masks->factor);
 		if (rate > drate)
 			break;
 	}
-	if (i > 0)
-		i--;
+	d = i ? &factor->ftbl[i - 1] : &factor->ftbl[0];
 
 	if (factor->lock)
 		spin_lock_irqsave(factor->lock, flags);
@@ -101,10 +101,10 @@ static int clk_factor_set_rate(struct clk_hw *hw, unsigned long drate,
 	val = readl_relaxed(factor->base);
 
 	val &= ~(masks->num_mask << masks->num_shift);
-	val |= (factor->ftbl[i].num & masks->num_mask) << masks->num_shift;
+	val |= (d->numerator & masks->num_mask) << masks->num_shift;
 
 	val &= ~(masks->den_mask << masks->den_shift);
-	val |= (factor->ftbl[i].den & masks->den_mask) << masks->den_shift;
+	val |= (d->denominator & masks->den_mask) << masks->den_shift;
 
 	writel_relaxed(val, factor->base);
 
@@ -118,7 +118,8 @@ static int clk_factor_init(struct clk_hw *hw)
 {
 	struct mmp_clk_factor *factor = to_clk_factor(hw);
 	struct mmp_clk_factor_masks *masks = factor->masks;
-	u32 val, num, den;
+	struct u32_fract d;
+	u32 val;
 	int i;
 	unsigned long flags = 0;
 
@@ -128,23 +129,22 @@ static int clk_factor_init(struct clk_hw *hw)
 	val = readl(factor->base);
 
 	/* calculate numerator */
-	num = (val >> masks->num_shift) & masks->num_mask;
+	d.numerator = (val >> masks->num_shift) & masks->num_mask;
 
 	/* calculate denominator */
-	den = (val >> masks->den_shift) & masks->den_mask;
+	d.denominator = (val >> masks->den_shift) & masks->den_mask;
 
 	for (i = 0; i < factor->ftbl_cnt; i++)
-		if (den == factor->ftbl[i].den && num == factor->ftbl[i].num)
+		if (d.denominator == factor->ftbl[i].denominator &&
+		    d.numerator == factor->ftbl[i].numerator)
 			break;
 
 	if (i >= factor->ftbl_cnt) {
 		val &= ~(masks->num_mask << masks->num_shift);
-		val |= (factor->ftbl[0].num & masks->num_mask) <<
-			masks->num_shift;
+		val |= (factor->ftbl[0].numerator & masks->num_mask) << masks->num_shift;
 
 		val &= ~(masks->den_mask << masks->den_shift);
-		val |= (factor->ftbl[0].den & masks->den_mask) <<
-			masks->den_shift;
+		val |= (factor->ftbl[0].denominator & masks->den_mask) << masks->den_shift;
 	}
 
 	if (!(val & masks->enable_mask) || i >= factor->ftbl_cnt) {
@@ -168,8 +168,7 @@ static const struct clk_ops clk_factor_ops = {
 struct clk *mmp_clk_register_factor(const char *name, const char *parent_name,
 		unsigned long flags, void __iomem *base,
 		struct mmp_clk_factor_masks *masks,
-		struct mmp_clk_factor_tbl *ftbl,
-		unsigned int ftbl_cnt, spinlock_t *lock)
+		struct u32_fract *ftbl, unsigned int ftbl_cnt, spinlock_t *lock)
 {
 	struct mmp_clk_factor *factor;
 	struct clk_init_data init;
diff --git a/drivers/clk/mmp/clk-of-mmp2.c b/drivers/clk/mmp/clk-of-mmp2.c
index eaad36ee323d..a4f15cee630e 100644
--- a/drivers/clk/mmp/clk-of-mmp2.c
+++ b/drivers/clk/mmp/clk-of-mmp2.c
@@ -143,9 +143,9 @@ static struct mmp_clk_factor_masks uart_factor_masks = {
 	.den_shift = 0,
 };
 
-static struct mmp_clk_factor_tbl uart_factor_tbl[] = {
-	{.num = 8125, .den = 1536},	/*14.745MHZ */
-	{.num = 3521, .den = 689},	/*19.23MHZ */
+static struct u32_fract uart_factor_tbl[] = {
+	{ .numerator = 8125, .denominator = 1536 },	/* 14.745MHZ */
+	{ .numerator = 3521, .denominator =  689 },	/* 19.23MHZ */
 };
 
 static struct mmp_clk_factor_masks i2s_factor_masks = {
@@ -157,16 +157,16 @@ static struct mmp_clk_factor_masks i2s_factor_masks = {
 	.enable_mask = 0xd0000000,
 };
 
-static struct mmp_clk_factor_tbl i2s_factor_tbl[] = {
-	{.num = 24868, .den =  511},	/*  2.0480 MHz */
-	{.num = 28003, .den =  793},	/*  2.8224 MHz */
-	{.num = 24941, .den = 1025},	/*  4.0960 MHz */
-	{.num = 28003, .den = 1586},	/*  5.6448 MHz */
-	{.num = 31158, .den = 2561},	/*  8.1920 MHz */
-	{.num = 16288, .den = 1845},	/* 11.2896 MHz */
-	{.num = 20772, .den = 2561},	/* 12.2880 MHz */
-	{.num =  8144, .den = 1845},	/* 22.5792 MHz */
-	{.num = 10386, .den = 2561},	/* 24.5760 MHz */
+static struct u32_fract i2s_factor_tbl[] = {
+	{ .numerator = 24868, .denominator =  511 },	/*  2.0480 MHz */
+	{ .numerator = 28003, .denominator =  793 },	/*  2.8224 MHz */
+	{ .numerator = 24941, .denominator = 1025 },	/*  4.0960 MHz */
+	{ .numerator = 28003, .denominator = 1586 },	/*  5.6448 MHz */
+	{ .numerator = 31158, .denominator = 2561 },	/*  8.1920 MHz */
+	{ .numerator = 16288, .denominator = 1845 },	/* 11.2896 MHz */
+	{ .numerator = 20772, .denominator = 2561 },	/* 12.2880 MHz */
+	{ .numerator =  8144, .denominator = 1845 },	/* 22.5792 MHz */
+	{ .numerator = 10386, .denominator = 2561 },	/* 24.5760 MHz */
 };
 
 static DEFINE_SPINLOCK(acgr_lock);
diff --git a/drivers/clk/mmp/clk-of-pxa168.c b/drivers/clk/mmp/clk-of-pxa168.c
index c5a7ba1deaa3..5f250427e60d 100644
--- a/drivers/clk/mmp/clk-of-pxa168.c
+++ b/drivers/clk/mmp/clk-of-pxa168.c
@@ -106,8 +106,8 @@ static struct mmp_clk_factor_masks uart_factor_masks = {
 	.den_shift = 0,
 };
 
-static struct mmp_clk_factor_tbl uart_factor_tbl[] = {
-	{.num = 8125, .den = 1536},	/*14.745MHZ */
+static struct u32_fract uart_factor_tbl[] = {
+	{ .numerator = 8125, .denominator = 1536 },	/* 14.745MHZ */
 };
 
 static void pxa168_pll_init(struct pxa168_clk_unit *pxa_unit)
diff --git a/drivers/clk/mmp/clk-of-pxa1928.c b/drivers/clk/mmp/clk-of-pxa1928.c
index 9def4b5f10e9..ebb6e278eda3 100644
--- a/drivers/clk/mmp/clk-of-pxa1928.c
+++ b/drivers/clk/mmp/clk-of-pxa1928.c
@@ -61,9 +61,9 @@ static struct mmp_clk_factor_masks uart_factor_masks = {
 	.den_shift = 0,
 };
 
-static struct mmp_clk_factor_tbl uart_factor_tbl[] = {
-	{.num = 832, .den = 234},	/*58.5MHZ */
-	{.num = 1, .den = 1},		/*26MHZ */
+static struct u32_fract uart_factor_tbl[] = {
+	{ .numerator = 832, .denominator = 234 },	/* 58.5MHZ */
+	{ .numerator =   1, .denominator =   1 },	/* 26MHZ */
 };
 
 static void pxa1928_pll_init(struct pxa1928_clk_unit *pxa_unit)
diff --git a/drivers/clk/mmp/clk-of-pxa910.c b/drivers/clk/mmp/clk-of-pxa910.c
index 7a38c424782e..fe65e7bdb411 100644
--- a/drivers/clk/mmp/clk-of-pxa910.c
+++ b/drivers/clk/mmp/clk-of-pxa910.c
@@ -86,8 +86,8 @@ static struct mmp_clk_factor_masks uart_factor_masks = {
 	.den_shift = 0,
 };
 
-static struct mmp_clk_factor_tbl uart_factor_tbl[] = {
-	{.num = 8125, .den = 1536},	/*14.745MHZ */
+static struct u32_fract uart_factor_tbl[] = {
+	{ .numerator = 8125, .denominator = 1536 },	/* 14.745MHZ */
 };
 
 static void pxa910_pll_init(struct pxa910_clk_unit *pxa_unit)
diff --git a/drivers/clk/mmp/clk.h b/drivers/clk/mmp/clk.h
index 55ac05379781..c83cec169ddc 100644
--- a/drivers/clk/mmp/clk.h
+++ b/drivers/clk/mmp/clk.h
@@ -3,6 +3,7 @@
 #define __MACH_MMP_CLK_H
 
 #include <linux/clk-provider.h>
+#include <linux/math.h>
 #include <linux/pm_domain.h>
 #include <linux/clkdev.h>
 
@@ -20,16 +21,11 @@ struct mmp_clk_factor_masks {
 	unsigned int enable_mask;
 };
 
-struct mmp_clk_factor_tbl {
-	unsigned int num;
-	unsigned int den;
-};
-
 struct mmp_clk_factor {
 	struct clk_hw hw;
 	void __iomem *base;
 	struct mmp_clk_factor_masks *masks;
-	struct mmp_clk_factor_tbl *ftbl;
+	struct u32_fract *ftbl;
 	unsigned int ftbl_cnt;
 	spinlock_t *lock;
 };
@@ -37,7 +33,7 @@ struct mmp_clk_factor {
 extern struct clk *mmp_clk_register_factor(const char *name,
 		const char *parent_name, unsigned long flags,
 		void __iomem *base, struct mmp_clk_factor_masks *masks,
-		struct mmp_clk_factor_tbl *ftbl, unsigned int ftbl_cnt,
+		struct u32_fract *ftbl, unsigned int ftbl_cnt,
 		spinlock_t *lock);
 
 /* Clock type "mix" */

-- 
2.44.0

[PATCH v9 2/9] dt-bindings: pinctrl: pinctrl-single: add marvell,pxa1908-padconf compatible

[Duje Mihanović]

Add the "marvell,pxa1908-padconf" compatible to allow migrating to a
separate pinctrl driver later.

Reviewed-by: Rob Herring <robh@kernel.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Duje Mihanović <duje.mihanovic@skole.hr>
---
 Documentation/devicetree/bindings/pinctrl/pinctrl-single.yaml | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/Documentation/devicetree/bindings/pinctrl/pinctrl-single.yaml b/Documentation/devicetree/bindings/pinctrl/pinctrl-single.yaml
index c11495524dd2..1ce24ad8bc73 100644
--- a/Documentation/devicetree/bindings/pinctrl/pinctrl-single.yaml
+++ b/Documentation/devicetree/bindings/pinctrl/pinctrl-single.yaml
@@ -33,6 +33,10 @@ properties:
               - ti,omap5-padconf
               - ti,j7200-padconf
           - const: pinctrl-single
+      - items:
+          - enum:
+              - marvell,pxa1908-padconf
+          - const: pinconf-single
 
   reg:
     maxItems: 1

-- 
2.44.0

[PATCH v9 3/9] pinctrl: single: add marvell,pxa1908-padconf compatible

[Duje Mihanović]

Add the "marvell,pxa1908-padconf" compatible to allow migrating to a
separate pinctrl driver later.

Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Duje Mihanović <duje.mihanovic@skole.hr>
---
 drivers/pinctrl/pinctrl-single.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/pinctrl/pinctrl-single.c b/drivers/pinctrl/pinctrl-single.c
index 19cc0db771a5..c15bf3cbabd7 100644
--- a/drivers/pinctrl/pinctrl-single.c
+++ b/drivers/pinctrl/pinctrl-single.c
@@ -1967,6 +1967,7 @@ static const struct pcs_soc_data pinconf_single = {
 };
 
 static const struct of_device_id pcs_of_match[] = {
+	{ .compatible = "marvell,pxa1908-padconf", .data = &pinconf_single },
 	{ .compatible = "ti,am437-padconf", .data = &pinctrl_single_am437x },
 	{ .compatible = "ti,am654-padconf", .data = &pinctrl_single_am654 },
 	{ .compatible = "ti,dra7-padconf", .data = &pinctrl_single_dra7 },

-- 
2.44.0

[PATCH v9 4/9] dt-bindings: clock: Add Marvell PXA1908 clock bindings

[Duje Mihanović]

Add dt bindings and documentation for the Marvell PXA1908 clock
controller.

Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Signed-off-by: Duje Mihanović <duje.mihanovic@skole.hr>
---
 .../devicetree/bindings/clock/marvell,pxa1908.yaml | 48 ++++++++++++
 include/dt-bindings/clock/marvell,pxa1908.h        | 88 ++++++++++++++++++++++
 2 files changed, 136 insertions(+)

diff --git a/Documentation/devicetree/bindings/clock/marvell,pxa1908.yaml b/Documentation/devicetree/bindings/clock/marvell,pxa1908.yaml
new file mode 100644
index 000000000000..4e78933232b6
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/marvell,pxa1908.yaml
@@ -0,0 +1,48 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/marvell,pxa1908.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Marvell PXA1908 Clock Controllers
+
+maintainers:
+  - Duje Mihanović <duje.mihanovic@skole.hr>
+
+description: |
+  The PXA1908 clock subsystem generates and supplies clock to various
+  controllers within the PXA1908 SoC. The PXA1908 contains numerous clock
+  controller blocks, with the ones currently supported being APBC, APBCP, MPMU
+  and APMU roughly corresponding to internal buses.
+
+  All these clock identifiers could be found in <include/dt-bindings/marvell,pxa1908.h>.
+
+properties:
+  compatible:
+    enum:
+      - marvell,pxa1908-apbc
+      - marvell,pxa1908-apbcp
+      - marvell,pxa1908-mpmu
+      - marvell,pxa1908-apmu
+
+  reg:
+    maxItems: 1
+
+  '#clock-cells':
+    const: 1
+
+required:
+  - compatible
+  - reg
+  - '#clock-cells'
+
+additionalProperties: false
+
+examples:
+  # APMU block:
+  - |
+    clock-controller@d4282800 {
+      compatible = "marvell,pxa1908-apmu";
+      reg = <0xd4282800 0x400>;
+      #clock-cells = <1>;
+    };
diff --git a/include/dt-bindings/clock/marvell,pxa1908.h b/include/dt-bindings/clock/marvell,pxa1908.h
new file mode 100644
index 000000000000..fb15b0d0cd4c
--- /dev/null
+++ b/include/dt-bindings/clock/marvell,pxa1908.h
@@ -0,0 +1,88 @@
+/* SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause */
+#ifndef __DTS_MARVELL_PXA1908_CLOCK_H
+#define __DTS_MARVELL_PXA1908_CLOCK_H
+
+/* plls */
+#define PXA1908_CLK_CLK32		1
+#define PXA1908_CLK_VCTCXO		2
+#define PXA1908_CLK_PLL1_624		3
+#define PXA1908_CLK_PLL1_416		4
+#define PXA1908_CLK_PLL1_499		5
+#define PXA1908_CLK_PLL1_832		6
+#define PXA1908_CLK_PLL1_1248		7
+#define PXA1908_CLK_PLL1_D2		8
+#define PXA1908_CLK_PLL1_D4		9
+#define PXA1908_CLK_PLL1_D8		10
+#define PXA1908_CLK_PLL1_D16		11
+#define PXA1908_CLK_PLL1_D6		12
+#define PXA1908_CLK_PLL1_D12		13
+#define PXA1908_CLK_PLL1_D24		14
+#define PXA1908_CLK_PLL1_D48		15
+#define PXA1908_CLK_PLL1_D96		16
+#define PXA1908_CLK_PLL1_D13		17
+#define PXA1908_CLK_PLL1_32		18
+#define PXA1908_CLK_PLL1_208		19
+#define PXA1908_CLK_PLL1_117		20
+#define PXA1908_CLK_PLL1_416_GATE	21
+#define PXA1908_CLK_PLL1_624_GATE	22
+#define PXA1908_CLK_PLL1_832_GATE	23
+#define PXA1908_CLK_PLL1_1248_GATE	24
+#define PXA1908_CLK_PLL1_D2_GATE	25
+#define PXA1908_CLK_PLL1_499_EN		26
+#define PXA1908_CLK_PLL2VCO		27
+#define PXA1908_CLK_PLL2		28
+#define PXA1908_CLK_PLL2P		29
+#define PXA1908_CLK_PLL2VCODIV3		30
+#define PXA1908_CLK_PLL3VCO		31
+#define PXA1908_CLK_PLL3		32
+#define PXA1908_CLK_PLL3P		33
+#define PXA1908_CLK_PLL3VCODIV3		34
+#define PXA1908_CLK_PLL4VCO		35
+#define PXA1908_CLK_PLL4		36
+#define PXA1908_CLK_PLL4P		37
+#define PXA1908_CLK_PLL4VCODIV3		38
+
+/* apb (apbc) peripherals */
+#define PXA1908_CLK_UART0		1
+#define PXA1908_CLK_UART1		2
+#define PXA1908_CLK_GPIO		3
+#define PXA1908_CLK_PWM0		4
+#define PXA1908_CLK_PWM1		5
+#define PXA1908_CLK_PWM2		6
+#define PXA1908_CLK_PWM3		7
+#define PXA1908_CLK_SSP0		8
+#define PXA1908_CLK_SSP1		9
+#define PXA1908_CLK_IPC_RST		10
+#define PXA1908_CLK_RTC			11
+#define PXA1908_CLK_TWSI0		12
+#define PXA1908_CLK_KPC			13
+#define PXA1908_CLK_SWJTAG		14
+#define PXA1908_CLK_SSP2		15
+#define PXA1908_CLK_TWSI1		16
+#define PXA1908_CLK_THERMAL		17
+#define PXA1908_CLK_TWSI3		18
+
+/* apb (apbcp) peripherals */
+#define PXA1908_CLK_UART2		1
+#define PXA1908_CLK_TWSI2		2
+#define PXA1908_CLK_AICER		3
+
+/* axi (apmu) peripherals */
+#define PXA1908_CLK_CCIC1		1
+#define PXA1908_CLK_ISP			2
+#define PXA1908_CLK_DSI1		3
+#define PXA1908_CLK_DISP1		4
+#define PXA1908_CLK_CCIC0		5
+#define PXA1908_CLK_SDH0		6
+#define PXA1908_CLK_SDH1		7
+#define PXA1908_CLK_USB			8
+#define PXA1908_CLK_NF			9
+#define PXA1908_CLK_CORE_DEBUG		10
+#define PXA1908_CLK_VPU			11
+#define PXA1908_CLK_GC			12
+#define PXA1908_CLK_SDH2		13
+#define PXA1908_CLK_GC2D		14
+#define PXA1908_CLK_TRACE		15
+#define PXA1908_CLK_DVC_DFC_DEBUG	16
+
+#endif

-- 
2.44.0

[PATCH v9 5/9] clk: mmp: Add Marvell PXA1908 clock driver

[Duje Mihanović]

Add driver for Marvell PXA1908 clock controller blocks. The SoC has
numerous clock controller blocks, currently supporting APBC, APBCP, MPMU
and APMU.

Signed-off-by: Duje Mihanović <duje.mihanovic@skole.hr>
---
 drivers/clk/mmp/Makefile         |   2 +-
 drivers/clk/mmp/clk-of-pxa1908.c | 328 +++++++++++++++++++++++++++++++++++++++
 2 files changed, 329 insertions(+), 1 deletion(-)

diff --git a/drivers/clk/mmp/Makefile b/drivers/clk/mmp/Makefile
index 441bf83080a1..69f9c3afde83 100644
--- a/drivers/clk/mmp/Makefile
+++ b/drivers/clk/mmp/Makefile
@@ -11,4 +11,4 @@ obj-$(CONFIG_MACH_MMP_DT) += clk-of-pxa168.o clk-of-pxa910.o
 obj-$(CONFIG_COMMON_CLK_MMP2) += clk-of-mmp2.o clk-pll.o pwr-island.o
 obj-$(CONFIG_COMMON_CLK_MMP2_AUDIO) += clk-audio.o
 
-obj-y += clk-of-pxa1928.o
+obj-$(CONFIG_ARCH_MMP) += clk-of-pxa1928.o clk-of-pxa1908.o
diff --git a/drivers/clk/mmp/clk-of-pxa1908.c b/drivers/clk/mmp/clk-of-pxa1908.c
new file mode 100644
index 000000000000..6f1f6e25a718
--- /dev/null
+++ b/drivers/clk/mmp/clk-of-pxa1908.c
@@ -0,0 +1,328 @@
+// SPDX-License-Identifier: GPL-2.0-only
+#include <linux/bits.h>
+#include <linux/clk-provider.h>
+#include <linux/of_address.h>
+#include <linux/slab.h>
+#include <linux/spinlock.h>
+#include <linux/units.h>
+
+#include <dt-bindings/clock/marvell,pxa1908.h>
+
+#include "clk.h"
+
+#define APMU_CLK_GATE_CTRL	0x40
+#define MPMU_UART_PLL		0x14
+
+#define APBC_UART0		0x0
+#define APBC_UART1		0x4
+#define APBC_GPIO		0x8
+#define APBC_PWM0		0xc
+#define APBC_PWM1		0x10
+#define APBC_PWM2		0x14
+#define APBC_PWM3		0x18
+#define APBC_SSP0		0x1c
+#define APBC_SSP1		0x20
+#define APBC_IPC_RST		0x24
+#define APBC_RTC		0x28
+#define APBC_TWSI0		0x2c
+#define APBC_KPC		0x30
+#define APBC_SWJTAG		0x40
+#define APBC_SSP2		0x4c
+#define APBC_TWSI1		0x60
+#define APBC_THERMAL		0x6c
+#define APBC_TWSI3		0x70
+
+#define APBCP_UART2		0x1c
+#define APBCP_TWSI2		0x28
+#define APBCP_AICER		0x38
+
+#define APMU_CCIC1		0x24
+#define APMU_ISP		0x38
+#define APMU_DSI1		0x44
+#define APMU_DISP1		0x4c
+#define APMU_CCIC0		0x50
+#define APMU_SDH0		0x54
+#define APMU_SDH1		0x58
+#define APMU_USB		0x5c
+#define APMU_NF			0x60
+#define APMU_VPU		0xa4
+#define APMU_GC			0xcc
+#define APMU_SDH2		0xe0
+#define APMU_GC2D		0xf4
+#define APMU_TRACE		0x108
+#define APMU_DVC_DFC_DEBUG	0x140
+
+#define MPMU_NR_CLKS		39
+#define APBC_NR_CLKS		19
+#define APBCP_NR_CLKS		4
+#define APMU_NR_CLKS		17
+
+struct pxa1908_clk_unit {
+	struct mmp_clk_unit unit;
+	void __iomem *mpmu_base;
+	void __iomem *apmu_base;
+	void __iomem *apbc_base;
+	void __iomem *apbcp_base;
+	void __iomem *apbs_base;
+	void __iomem *ciu_base;
+};
+
+static struct mmp_param_fixed_rate_clk fixed_rate_clks[] = {
+	{PXA1908_CLK_CLK32, "clk32", NULL, 0, 32768},
+	{PXA1908_CLK_VCTCXO, "vctcxo", NULL, 0, 26 * HZ_PER_MHZ},
+	{PXA1908_CLK_PLL1_624, "pll1_624", NULL, 0, 624 * HZ_PER_MHZ},
+	{PXA1908_CLK_PLL1_416, "pll1_416", NULL, 0, 416 * HZ_PER_MHZ},
+	{PXA1908_CLK_PLL1_499, "pll1_499", NULL, 0, 499 * HZ_PER_MHZ},
+	{PXA1908_CLK_PLL1_832, "pll1_832", NULL, 0, 832 * HZ_PER_MHZ},
+	{PXA1908_CLK_PLL1_1248, "pll1_1248", NULL, 0, 1248 * HZ_PER_MHZ},
+};
+
+static struct mmp_param_fixed_factor_clk fixed_factor_clks[] = {
+	{PXA1908_CLK_PLL1_D2, "pll1_d2", "pll1_624", 1, 2, 0},
+	{PXA1908_CLK_PLL1_D4, "pll1_d4", "pll1_d2", 1, 2, 0},
+	{PXA1908_CLK_PLL1_D6, "pll1_d6", "pll1_d2", 1, 3, 0},
+	{PXA1908_CLK_PLL1_D8, "pll1_d8", "pll1_d4", 1, 2, 0},
+	{PXA1908_CLK_PLL1_D12, "pll1_d12", "pll1_d6", 1, 2, 0},
+	{PXA1908_CLK_PLL1_D13, "pll1_d13", "pll1_624", 1, 13, 0},
+	{PXA1908_CLK_PLL1_D16, "pll1_d16", "pll1_d8", 1, 2, 0},
+	{PXA1908_CLK_PLL1_D24, "pll1_d24", "pll1_d12", 1, 2, 0},
+	{PXA1908_CLK_PLL1_D48, "pll1_d48", "pll1_d24", 1, 2, 0},
+	{PXA1908_CLK_PLL1_D96, "pll1_d96", "pll1_d48", 1, 2, 0},
+	{PXA1908_CLK_PLL1_32, "pll1_32", "pll1_d13", 2, 3, 0},
+	{PXA1908_CLK_PLL1_208, "pll1_208", "pll1_d2", 2, 3, 0},
+	{PXA1908_CLK_PLL1_117, "pll1_117", "pll1_624", 3, 16, 0},
+};
+
+static struct mmp_clk_factor_masks uart_factor_masks = {
+	.factor = 2,
+	.num_mask = GENMASK(12, 0),
+	.den_mask = GENMASK(12, 0),
+	.num_shift = 16,
+	.den_shift = 0,
+};
+
+static struct u32_fract uart_factor_tbl[] = {
+	{.numerator = 8125, .denominator = 1536},	/* 14.745MHz */
+};
+
+static DEFINE_SPINLOCK(pll1_lock);
+static struct mmp_param_general_gate_clk pll1_gate_clks[] = {
+	{PXA1908_CLK_PLL1_D2_GATE, "pll1_d2_gate", "pll1_d2", 0, APMU_CLK_GATE_CTRL, 29, 0, &pll1_lock},
+	{PXA1908_CLK_PLL1_416_GATE, "pll1_416_gate", "pll1_416", 0, APMU_CLK_GATE_CTRL, 27, 0, &pll1_lock},
+	{PXA1908_CLK_PLL1_624_GATE, "pll1_624_gate", "pll1_624", 0, APMU_CLK_GATE_CTRL, 26, 0, &pll1_lock},
+	{PXA1908_CLK_PLL1_832_GATE, "pll1_832_gate", "pll1_832", 0, APMU_CLK_GATE_CTRL, 30, 0, &pll1_lock},
+	{PXA1908_CLK_PLL1_1248_GATE, "pll1_1248_gate", "pll1_1248", 0, APMU_CLK_GATE_CTRL, 28, 0, &pll1_lock},
+};
+
+static void pxa1908_pll_init(struct pxa1908_clk_unit *pxa_unit)
+{
+	struct mmp_clk_unit *unit = &pxa_unit->unit;
+
+	mmp_register_fixed_rate_clks(unit, fixed_rate_clks,
+					ARRAY_SIZE(fixed_rate_clks));
+
+	mmp_register_fixed_factor_clks(unit, fixed_factor_clks,
+					ARRAY_SIZE(fixed_factor_clks));
+
+	mmp_clk_register_factor("uart_pll", "pll1_d4",
+			CLK_SET_RATE_PARENT,
+			pxa_unit->mpmu_base + MPMU_UART_PLL,
+			&uart_factor_masks, uart_factor_tbl,
+			ARRAY_SIZE(uart_factor_tbl), NULL);
+
+}
+
+static DEFINE_SPINLOCK(pwm0_lock);
+static DEFINE_SPINLOCK(pwm2_lock);
+
+static DEFINE_SPINLOCK(uart0_lock);
+static DEFINE_SPINLOCK(uart1_lock);
+static DEFINE_SPINLOCK(uart2_lock);
+
+static const char * const uart_parent_names[] = {"pll1_117", "uart_pll"};
+static const char * const ssp_parent_names[] = {"pll1_d16", "pll1_d48", "pll1_d24", "pll1_d12"};
+
+static struct mmp_param_gate_clk apbc_gate_clks[] = {
+	{PXA1908_CLK_TWSI0, "twsi0_clk", "pll1_32", CLK_SET_RATE_PARENT, APBC_TWSI0, 0x7, 3, 0, 0, NULL},
+	{PXA1908_CLK_TWSI1, "twsi1_clk", "pll1_32", CLK_SET_RATE_PARENT, APBC_TWSI1, 0x7, 3, 0, 0, NULL},
+	{PXA1908_CLK_TWSI3, "twsi3_clk", "pll1_32", CLK_SET_RATE_PARENT, APBC_TWSI3, 0x7, 3, 0, 0, NULL},
+	{PXA1908_CLK_GPIO, "gpio_clk", "vctcxo", CLK_SET_RATE_PARENT, APBC_GPIO, 0x7, 3, 0, 0, NULL},
+	{PXA1908_CLK_KPC, "kpc_clk", "clk32", CLK_SET_RATE_PARENT, APBC_KPC, 0x7, 3, 0, MMP_CLK_GATE_NEED_DELAY, NULL},
+	{PXA1908_CLK_RTC, "rtc_clk", "clk32", CLK_SET_RATE_PARENT, APBC_RTC, 0x87, 0x83, 0, MMP_CLK_GATE_NEED_DELAY, NULL},
+	{PXA1908_CLK_PWM0, "pwm0_clk", "pwm01_apb_share", CLK_SET_RATE_PARENT, APBC_PWM0, 0x2, 2, 0, 0, &pwm0_lock},
+	{PXA1908_CLK_PWM1, "pwm1_clk", "pwm01_apb_share", CLK_SET_RATE_PARENT, APBC_PWM1, 0x6, 2, 0, 0, NULL},
+	{PXA1908_CLK_PWM2, "pwm2_clk", "pwm23_apb_share", CLK_SET_RATE_PARENT, APBC_PWM2, 0x2, 2, 0, 0, NULL},
+	{PXA1908_CLK_PWM3, "pwm3_clk", "pwm23_apb_share", CLK_SET_RATE_PARENT, APBC_PWM3, 0x6, 2, 0, 0, NULL},
+	{PXA1908_CLK_UART0, "uart0_clk", "uart0_mux", CLK_SET_RATE_PARENT, APBC_UART0, 0x7, 3, 0, 0, &uart0_lock},
+	{PXA1908_CLK_UART1, "uart1_clk", "uart1_mux", CLK_SET_RATE_PARENT, APBC_UART1, 0x7, 3, 0, 0, &uart1_lock},
+};
+
+static struct mmp_param_mux_clk apbc_mux_clks[] = {
+	{0, "uart0_mux", uart_parent_names, ARRAY_SIZE(uart_parent_names), CLK_SET_RATE_PARENT, APBC_UART0, 4, 3, 0, &uart0_lock},
+	{0, "uart1_mux", uart_parent_names, ARRAY_SIZE(uart_parent_names), CLK_SET_RATE_PARENT, APBC_UART1, 4, 3, 0, &uart1_lock},
+	{0, "ssp0_mux", ssp_parent_names, ARRAY_SIZE(ssp_parent_names), 0, APBC_SSP0, 4, 3, 0, NULL},
+	{0, "ssp2_mux", ssp_parent_names, ARRAY_SIZE(ssp_parent_names), 0, APBC_SSP2, 4, 3, 0, NULL},
+};
+
+static void pxa1908_apb_periph_clk_init(struct pxa1908_clk_unit *pxa_unit)
+{
+	struct mmp_clk_unit *unit = &pxa_unit->unit;
+
+	mmp_clk_register_gate(NULL, "pwm01_apb_share", "pll1_d48",
+			CLK_SET_RATE_PARENT,
+			pxa_unit->apbc_base + APBC_PWM0,
+			0x5, 1, 0, 0, &pwm0_lock);
+	mmp_clk_register_gate(NULL, "pwm23_apb_share", "pll1_d48",
+			CLK_SET_RATE_PARENT,
+			pxa_unit->apbc_base + APBC_PWM2,
+			0x5, 1, 0, 0, &pwm2_lock);
+	mmp_register_mux_clks(unit, apbc_mux_clks, pxa_unit->apbc_base,
+			ARRAY_SIZE(apbc_mux_clks));
+	mmp_register_gate_clks(unit, apbc_gate_clks, pxa_unit->apbc_base,
+			ARRAY_SIZE(apbc_gate_clks));
+}
+
+static struct mmp_param_gate_clk apbcp_gate_clks[] = {
+	{PXA1908_CLK_UART2, "uart2_clk", "uart2_mux", CLK_SET_RATE_PARENT, APBCP_UART2, 0x7, 0x3, 0x0, 0, &uart2_lock},
+	{PXA1908_CLK_TWSI2, "twsi2_clk", "pll1_32", CLK_SET_RATE_PARENT, APBCP_TWSI2, 0x7, 0x3, 0x0, 0, NULL},
+	{PXA1908_CLK_AICER, "ripc_clk", NULL, 0, APBCP_AICER, 0x7, 0x2, 0x0, 0, NULL},
+};
+
+static struct mmp_param_mux_clk apbcp_mux_clks[] = {
+	{0, "uart2_mux", uart_parent_names, ARRAY_SIZE(uart_parent_names), CLK_SET_RATE_PARENT, APBCP_UART2, 4, 3, 0, &uart2_lock},
+};
+
+static void pxa1908_apb_p_periph_clk_init(struct pxa1908_clk_unit *pxa_unit)
+{
+	struct mmp_clk_unit *unit = &pxa_unit->unit;
+
+	mmp_register_mux_clks(unit, apbcp_mux_clks, pxa_unit->apbcp_base,
+			ARRAY_SIZE(apbcp_mux_clks));
+	mmp_register_gate_clks(unit, apbcp_gate_clks, pxa_unit->apbcp_base,
+			ARRAY_SIZE(apbcp_gate_clks));
+}
+
+static DEFINE_SPINLOCK(sdh0_lock);
+static DEFINE_SPINLOCK(sdh1_lock);
+static DEFINE_SPINLOCK(sdh2_lock);
+
+static const char * const sdh_parent_names[] = {"pll1_416", "pll1_624"};
+
+static struct mmp_clk_mix_config sdh_mix_config = {
+	.reg_info = DEFINE_MIX_REG_INFO(3, 8, 2, 6, 11),
+};
+
+static struct mmp_param_gate_clk apmu_gate_clks[] = {
+	{PXA1908_CLK_USB, "usb_clk", NULL, 0, APMU_USB, 0x9, 0x9, 0x1, 0, NULL},
+	{PXA1908_CLK_SDH0, "sdh0_clk", "sdh0_mix_clk", CLK_SET_RATE_PARENT | CLK_SET_RATE_UNGATE, APMU_SDH0, 0x12, 0x12, 0x0, 0, &sdh0_lock},
+	{PXA1908_CLK_SDH1, "sdh1_clk", "sdh1_mix_clk", CLK_SET_RATE_PARENT | CLK_SET_RATE_UNGATE, APMU_SDH1, 0x12, 0x12, 0x0, 0, &sdh1_lock},
+	{PXA1908_CLK_SDH2, "sdh2_clk", "sdh2_mix_clk", CLK_SET_RATE_PARENT | CLK_SET_RATE_UNGATE, APMU_SDH2, 0x12, 0x12, 0x0, 0, &sdh2_lock}
+};
+
+static void pxa1908_axi_periph_clk_init(struct pxa1908_clk_unit *pxa_unit)
+{
+	struct mmp_clk_unit *unit = &pxa_unit->unit;
+
+	mmp_register_general_gate_clks(unit, pll1_gate_clks,
+			pxa_unit->apmu_base, ARRAY_SIZE(pll1_gate_clks));
+
+	sdh_mix_config.reg_info.reg_clk_ctrl = pxa_unit->apmu_base + APMU_SDH0;
+	mmp_clk_register_mix(NULL, "sdh0_mix_clk", sdh_parent_names,
+			ARRAY_SIZE(sdh_parent_names), CLK_SET_RATE_PARENT,
+			&sdh_mix_config, &sdh0_lock);
+	sdh_mix_config.reg_info.reg_clk_ctrl = pxa_unit->apmu_base + APMU_SDH1;
+	mmp_clk_register_mix(NULL, "sdh1_mix_clk", sdh_parent_names,
+			ARRAY_SIZE(sdh_parent_names), CLK_SET_RATE_PARENT,
+			&sdh_mix_config, &sdh1_lock);
+	sdh_mix_config.reg_info.reg_clk_ctrl = pxa_unit->apmu_base + APMU_SDH2;
+	mmp_clk_register_mix(NULL, "sdh2_mix_clk", sdh_parent_names,
+			ARRAY_SIZE(sdh_parent_names), CLK_SET_RATE_PARENT,
+			&sdh_mix_config, &sdh2_lock);
+
+	mmp_register_gate_clks(unit, apmu_gate_clks, pxa_unit->apmu_base,
+			ARRAY_SIZE(apmu_gate_clks));
+}
+
+static void __init pxa1908_apbc_clk_init(struct device_node *np)
+{
+	struct pxa1908_clk_unit *pxa_unit;
+
+	pxa_unit = kzalloc(sizeof(*pxa_unit), GFP_KERNEL);
+	if (!pxa_unit)
+		return;
+
+	pxa_unit->apbc_base = of_iomap(np, 0);
+	if (!pxa_unit->apbc_base) {
+		pr_err("failed to map apbc registers\n");
+		kfree(pxa_unit);
+		return;
+	}
+
+	mmp_clk_init(np, &pxa_unit->unit, APBC_NR_CLKS);
+
+	pxa1908_apb_periph_clk_init(pxa_unit);
+}
+CLK_OF_DECLARE(pxa1908_apbc, "marvell,pxa1908-apbc", pxa1908_apbc_clk_init);
+
+static void __init pxa1908_apbcp_clk_init(struct device_node *np)
+{
+	struct pxa1908_clk_unit *pxa_unit;
+
+	pxa_unit = kzalloc(sizeof(*pxa_unit), GFP_KERNEL);
+	if (!pxa_unit)
+		return;
+
+	pxa_unit->apbcp_base = of_iomap(np, 0);
+	if (!pxa_unit->apbcp_base) {
+		pr_err("failed to map apbcp registers\n");
+		kfree(pxa_unit);
+		return;
+	}
+
+	mmp_clk_init(np, &pxa_unit->unit, APBCP_NR_CLKS);
+
+	pxa1908_apb_p_periph_clk_init(pxa_unit);
+}
+CLK_OF_DECLARE(pxa1908_apbcp, "marvell,pxa1908-apbcp", pxa1908_apbcp_clk_init);
+
+static void __init pxa1908_mpmu_clk_init(struct device_node *np)
+{
+	struct pxa1908_clk_unit *pxa_unit;
+
+	pxa_unit = kzalloc(sizeof(*pxa_unit), GFP_KERNEL);
+	if (!pxa_unit)
+		return;
+
+	pxa_unit->mpmu_base = of_iomap(np, 0);
+	if (!pxa_unit->mpmu_base) {
+		pr_err("failed to map mpmu registers\n");
+		kfree(pxa_unit);
+		return;
+	}
+
+	mmp_clk_init(np, &pxa_unit->unit, MPMU_NR_CLKS);
+
+	pxa1908_pll_init(pxa_unit);
+}
+CLK_OF_DECLARE(pxa1908_mpmu, "marvell,pxa1908-mpmu", pxa1908_mpmu_clk_init);
+
+static void __init pxa1908_apmu_clk_init(struct device_node *np)
+{
+	struct pxa1908_clk_unit *pxa_unit;
+
+	pxa_unit = kzalloc(sizeof(*pxa_unit), GFP_KERNEL);
+	if (!pxa_unit)
+		return;
+
+	pxa_unit->apmu_base = of_iomap(np, 0);
+	if (!pxa_unit->apmu_base) {
+		pr_err("failed to map apmu registers\n");
+		kfree(pxa_unit);
+		return;
+	}
+
+	mmp_clk_init(np, &pxa_unit->unit, APMU_NR_CLKS);
+
+	pxa1908_axi_periph_clk_init(pxa_unit);
+}
+CLK_OF_DECLARE(pxa1908_apmu, "marvell,pxa1908-apmu", pxa1908_apmu_clk_init);

-- 
2.44.0

[PATCH v9 6/9] dt-bindings: marvell: Document PXA1908 SoC

[Duje Mihanović]

Add dt binding for the Marvell PXA1908 SoC.

Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Duje Mihanović <duje.mihanovic@skole.hr>
---
 Documentation/devicetree/bindings/arm/mrvl/mrvl.yaml | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/Documentation/devicetree/bindings/arm/mrvl/mrvl.yaml b/Documentation/devicetree/bindings/arm/mrvl/mrvl.yaml
index 4c43eaf3632e..f73bb8ec3a1a 100644
--- a/Documentation/devicetree/bindings/arm/mrvl/mrvl.yaml
+++ b/Documentation/devicetree/bindings/arm/mrvl/mrvl.yaml
@@ -35,6 +35,11 @@ properties:
           - enum:
               - dell,wyse-ariel
           - const: marvell,mmp3
+      - description: PXA1908 based boards
+        items:
+          - enum:
+              - samsung,coreprimevelte
+          - const: marvell,pxa1908
 
 additionalProperties: true
 

-- 
2.44.0

[PATCH v9 7/9] arm64: Kconfig.platforms: Add config for Marvell PXA1908 platform

[Duje Mihanović]

Add ARCH_MMP configuration option for Marvell PXA1908 SoC.

Signed-off-by: Duje Mihanović <duje.mihanovic@skole.hr>
---
 arch/arm64/Kconfig.platforms | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/arch/arm64/Kconfig.platforms b/arch/arm64/Kconfig.platforms
index 24335565bad5..d71b0b6e75aa 100644
--- a/arch/arm64/Kconfig.platforms
+++ b/arch/arm64/Kconfig.platforms
@@ -168,6 +168,14 @@ config ARCH_MESON
 	  This enables support for the arm64 based Amlogic SoCs
 	  such as the s905, S905X/D, S912, A113X/D or S905X/D2
 
+config ARCH_MMP
+	bool "Marvell MMP SoC Family"
+	select PINCTRL
+	select PINCTRL_SINGLE
+	help
+	  This enables support for Marvell MMP SoC family, currently
+	  supporting PXA1908 aka IAP140.
+
 config ARCH_MVEBU
 	bool "Marvell EBU SoC Family"
 	select ARMADA_AP806_SYSCON

-- 
2.44.0

[PATCH v9 8/9] arm64: dts: Add DTS for Marvell PXA1908 and samsung,coreprimevelte

[Duje Mihanović]

Add DTS for Marvell PXA1908 SoC and Samsung Galaxy Core Prime Value
Edition LTE, a smartphone based on said SoC.

Signed-off-by: Duje Mihanović <duje.mihanovic@skole.hr>

To: Michael Turquette <mturquette@baylibre.com>, 
 Stephen Boyd <sboyd@kernel.org>, Linus Walleij <linus.walleij@linaro.org>, 
 Rob Herring <robh+dt@kernel.org>, 
 Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>, 
 Conor Dooley <conor+dt@kernel.org>, Tony Lindgren <tony@atomide.com>, 
 Haojian Zhuang <haojian.zhuang@linaro.org>, 
 =?utf-8?q?Duje_Mihanovi=C4=87?= <duje.mihanovic@skole.hr>, 
 Lubomir Rintel <lkundrak@v3.sk>, Catalin Marinas <catalin.marinas@arm.com>, 
 Will Deacon <will@kernel.org>, Kees Cook <keescook@chromium.org>, 
 Tony Luck <tony.luck@intel.com>, 
 "Guilherme G. Piccoli" <gpiccoli@igalia.com>, Rob Herring <robh@kernel.org>
Cc: phone-devel@vger.kernel.org, ~postmarketos/upstreaming@lists.sr.ht, 
 Karel Balej <balejk@matfyz.cz>, David Wronek <david@mainlining.org>, 
 linux-clk@vger.kernel.org, linux-kernel@vger.kernel.org, 
 linux-gpio@vger.kernel.org, devicetree@vger.kernel.org, 
 linux-arm-kernel@lists.infradead.org
---
 arch/arm64/boot/dts/marvell/Makefile          |   3 +
 .../pxa1908-samsung-coreprimevelte.dts        | 336 ++++++++++++++++++
 arch/arm64/boot/dts/marvell/pxa1908.dtsi      | 304 ++++++++++++++++
 3 files changed, 643 insertions(+)
 create mode 100644 arch/arm64/boot/dts/marvell/pxa1908-samsung-coreprimevelte.dts
 create mode 100644 arch/arm64/boot/dts/marvell/pxa1908.dtsi

diff --git a/arch/arm64/boot/dts/marvell/Makefile b/arch/arm64/boot/dts/marvell/Makefile
index 99b8cb3c49e1..687c256d95fe 100644
--- a/arch/arm64/boot/dts/marvell/Makefile
+++ b/arch/arm64/boot/dts/marvell/Makefile
@@ -28,3 +28,6 @@ dtb-$(CONFIG_ARCH_MVEBU) += cn9130-crb-A.dtb
 dtb-$(CONFIG_ARCH_MVEBU) += cn9130-crb-B.dtb
 dtb-$(CONFIG_ARCH_MVEBU) += ac5x-rd-carrier-cn9131.dtb
 dtb-$(CONFIG_ARCH_MVEBU) += ac5-98dx35xx-rd.dtb
+
+# MMP SoC Family
+dtb-$(CONFIG_ARCH_MMP) += pxa1908-samsung-coreprimevelte.dtb
diff --git a/arch/arm64/boot/dts/marvell/pxa1908-samsung-coreprimevelte.dts b/arch/arm64/boot/dts/marvell/pxa1908-samsung-coreprimevelte.dts
new file mode 100644
index 000000000000..4aac4c120087
--- /dev/null
+++ b/arch/arm64/boot/dts/marvell/pxa1908-samsung-coreprimevelte.dts
@@ -0,0 +1,336 @@
+// SPDX-License-Identifier: GPL-2.0-only
+#include "pxa1908.dtsi"
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/linux-event-codes.h>
+
+/ {
+	model = "Samsung Galaxy Core Prime VE LTE";
+	compatible = "samsung,coreprimevelte", "marvell,pxa1908";
+
+	aliases {
+		mmc0 = &sdh2; /* eMMC */
+		mmc1 = &sdh0; /* SD card */
+		serial0 = &uart0;
+	};
+
+	chosen {
+		#address-cells = <2>;
+		#size-cells = <2>;
+		ranges;
+
+		stdout-path = "serial0:115200n8";
+
+		/* S-Boot places the initramfs here */
+		linux,initrd-start = <0x4d70000>;
+		linux,initrd-end = <0x5000000>;
+
+		fb0: framebuffer@17177000 {
+			compatible = "simple-framebuffer";
+			reg = <0 0x17177000 0 (480 * 800 * 4)>;
+			width = <480>;
+			height = <800>;
+			stride = <(480 * 4)>;
+			format = "a8r8g8b8";
+		};
+	};
+
+	/* Bootloader fills this in */
+	memory {
+		device_type = "memory";
+		reg = <0 0 0 0>;
+	};
+
+	reserved-memory {
+		#address-cells = <2>;
+		#size-cells = <2>;
+		ranges;
+
+		framebuffer@17000000 {
+			reg = <0 0x17000000 0 0x1800000>;
+			no-map;
+		};
+
+		gpu@9000000 {
+			reg = <0 0x9000000 0 0x1000000>;
+		};
+
+		/* Communications processor, aka modem */
+		cp@5000000 {
+			reg = <0 0x5000000 0 0x3000000>;
+		};
+
+		cm3@a000000 {
+			reg = <0 0xa000000 0 0x80000>;
+		};
+
+		seclog@8000000 {
+			reg = <0 0x8000000 0 0x100000>;
+		};
+
+		ramoops@8100000 {
+			compatible = "ramoops";
+			reg = <0 0x8100000 0 0x40000>;
+			record-size = <0x8000>;
+			console-size = <0x20000>;
+			max-reason = <5>;
+		};
+	};
+
+
+	i2c-muic {
+		compatible = "i2c-gpio";
+		sda-gpios = <&gpio 30 (GPIO_ACTIVE_HIGH|GPIO_OPEN_DRAIN)>;
+		scl-gpios = <&gpio 29 (GPIO_ACTIVE_HIGH|GPIO_OPEN_DRAIN)>;
+		i2c-gpio,delay-us = <3>;
+		i2c-gpio,timeout-ms = <100>;
+		#address-cells = <1>;
+		#size-cells = <0>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&i2c_muic_pins>;
+
+		muic: extcon@14 {
+			compatible = "siliconmitus,sm5504-muic";
+			reg = <0x14>;
+			interrupt-parent = <&gpio>;
+			interrupts = <0 IRQ_TYPE_EDGE_FALLING>;
+		};
+	};
+
+	gpio-keys {
+		compatible = "gpio-keys";
+		pinctrl-names = "default";
+		pinctrl-0 = <&gpio_keys_pins>;
+		autorepeat;
+
+		key-home {
+			label = "Home";
+			linux,code = <KEY_HOME>;
+			gpios = <&gpio 50 GPIO_ACTIVE_LOW>;
+		};
+
+		key-volup {
+			label = "Volume Up";
+			linux,code = <KEY_VOLUMEUP>;
+			gpios = <&gpio 16 GPIO_ACTIVE_LOW>;
+		};
+
+		key-voldown {
+			label = "Volume Down";
+			linux,code = <KEY_VOLUMEDOWN>;
+			gpios = <&gpio 17 GPIO_ACTIVE_LOW>;
+		};
+	};
+};
+
+&smmu {
+	status = "okay";
+};
+
+&pmx {
+	pinctrl-single,gpio-range = <&range 55 55 0>,
+				    <&range 110 32 0>,
+				    <&range 52 1 0>;
+
+	pinctrl-names = "default";
+	pinctrl-0 = <&board_pins_1 &board_pins_2 &board_pins_3>;
+
+	board_pins_1: pinmux-board-1 {
+		pinctrl-single,pins = <
+			0x160 0
+			0x164 0
+			0x168 0
+			0x16c 0
+		>;
+		pinctrl-single,drive-strength = <0x1000 0x1800>;
+		pinctrl-single,bias-pullup = <0x8000 0x8000 0 0xc000>;
+		pinctrl-single,bias-pulldown = <0x8000 0x8000 0 0xa000>;
+		pinctrl-single,input-schmitt = <0 0x30>;
+		pinctrl-single,input-schmitt-enable = <0x40 0 0x40 0x40>;
+		pinctrl-single,low-power-mode = <0x288 0x388>;
+	};
+
+	board_pins_2: pinmux-board-2 {
+		pinctrl-single,pins = <
+			0x44 1
+			0x48 1
+			0x20 1
+			0x18 1
+			0x14 1
+			0x10 1
+			0xc 1
+			0x8 1
+			0x68 1
+			0x58 0
+			0x54 0
+			0x7c 0
+			0x6c 0
+			0x70 0
+			0x4c 1
+			0x50 1
+			0xac 0
+			0x90 0
+			0x8c 0
+			0x88 0
+			0x84 0
+			0xc8 0
+			0x128 0
+			0x190 0
+			0x194 0
+			0x1a0 0
+			0x114 0
+			0x118 0
+			0x1d8 0
+			0x1e4 0
+			0xe8 0
+			0x100 0
+			0x204 0
+			0x210 0
+			0x218 0
+		>;
+		pinctrl-single,bias-pullup = <0xc000 0xc000 0 0xc000>;
+		pinctrl-single,bias-pulldown = <0x8000 0xa000 0x8000 0xc000>;
+		pinctrl-single,low-power-mode = <0x288 0x388>;
+	};
+
+	board_pins_3: pinmux-board-3 {
+		pinctrl-single,pins = <
+			0x260 0
+			0x264 0
+			0x268 0
+			0x26c 0
+			0x270 0
+			0x274 0
+			0x78 0
+			0x74 0
+			0xb0 1
+		>;
+		pinctrl-single,drive-strength = <0x1000 0x1800>;
+		pinctrl-single,bias-pullup = <0 0xc000 0 0xc000>;
+		pinctrl-single,bias-pulldown = <0 0xa000 0 0xa000>;
+		pinctrl-single,input-schmitt = <0 0x30>;
+		pinctrl-single,input-schmitt-enable = <0x40 0 0x40 0x40>;
+		pinctrl-single,low-power-mode = <0 0x388>;
+	};
+
+	uart0_pins: pinmux-uart0 {
+		pinctrl-single,pins = <
+			0x198 6
+			0x19c 6
+		>;
+		pinctrl-single,drive-strength = <0x1000 0x1800>;
+		pinctrl-single,bias-pullup = <0 0xc000 0 0xc000>;
+		pinctrl-single,bias-pulldown = <0 0xa000 0 0xa000>;
+		pinctrl-single,input-schmitt = <0 0x30>;
+		pinctrl-single,input-schmitt-enable = <0x40 0 0x40 0x40>;
+		pinctrl-single,low-power-mode = <0 0x388>;
+	};
+
+	gpio_keys_pins: pinmux-gpio-keys {
+		pinctrl-single,pins = <
+			0x11c 0
+			0x120 0
+			0x1a4 0
+		>;
+		pinctrl-single,drive-strength = <0x1000 0x1800>;
+		pinctrl-single,bias-pullup = <0xc000 0xc000 0 0xc000>;
+		pinctrl-single,bias-pulldown = <0x8000 0xa0000 0x8000 0xa000>;
+		pinctrl-single,input-schmitt = <0 0x30>;
+		pinctrl-single,input-schmitt-enable = <0x40 0 0x40 0x40>;
+		pinctrl-single,low-power-mode = <0 0x388>;
+	};
+
+	i2c_muic_pins: pinmux-i2c-muic {
+		pinctrl-single,pins = <
+			0x154 0
+			0x150 0
+		>;
+		pinctrl-single,drive-strength = <0x1000 0x1800>;
+		pinctrl-single,bias-pullup = <0 0xc000 0 0xc000>;
+		pinctrl-single,bias-pulldown = <0 0xa000 0 0xa000>;
+		pinctrl-single,input-schmitt = <0 0x30>;
+		pinctrl-single,input-schmitt-enable = <0x40 0 0x40 0x40>;
+		pinctrl-single,low-power-mode = <0x288 0x388>;
+	};
+
+	sdh0_pins_1: pinmux-sdh0-1 {
+		pinctrl-single,pins = <
+			0x108 0
+		>;
+		pinctrl-single,drive-strength = <0x1000 0x1800>;
+		pinctrl-single,bias-pullup = <0xc000 0xc000 0 0xc000>;
+		pinctrl-single,bias-pulldown = <0x8000 0xa000 0x8000 0xa000>;
+		pinctrl-single,input-schmitt = <0 0x30>;
+		pinctrl-single,input-schmitt-enable = <0x40 0 0x40 0x40>;
+		pinctrl-single,low-power-mode = <0 0x388>;
+	};
+
+	sdh0_pins_2: pinmux-sdh0-2 {
+		pinctrl-single,pins = <
+			0x94 0
+			0x98 0
+			0x9c 0
+			0xa0 0
+			0xa4 0
+		>;
+		pinctrl-single,drive-strength = <0x800 0x1800>;
+		pinctrl-single,bias-pullup = <0xc000 0xc000 0 0xc000>;
+		pinctrl-single,bias-pulldown = <0x8000 0xa000 0x8000 0xa000>;
+		pinctrl-single,input-schmitt = <0 0x30>;
+		pinctrl-single,input-schmitt-enable = <0x40 0 0x40 0x40>;
+		pinctrl-single,low-power-mode = <0 0x388>;
+	};
+
+	sdh0_pins_3: pinmux-sdh0-3 {
+		pinctrl-single,pins = <
+			0xa8 0
+		>;
+		pinctrl-single,drive-strength = <0x1000 0x1800>;
+		pinctrl-single,bias-pullup = <0 0xc000 0 0xc000>;
+		pinctrl-single,bias-pulldown = <0 0xa000 0 0xa000>;
+		pinctrl-single,input-schmitt = <0 0x30>;
+		pinctrl-single,input-schmitt-enable = <0x40 0 0x40 0x40>;
+		pinctrl-single,low-power-mode = <0x208 0x388>;
+	};
+};
+
+&uart0 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&uart0_pins>;
+};
+
+&twsi0 {
+	status = "okay";
+};
+
+&twsi1 {
+	status = "okay";
+};
+
+&twsi2 {
+	status = "okay";
+};
+
+&twsi3 {
+	status = "okay";
+};
+
+&usb {
+	extcon = <&muic>, <&muic>;
+};
+
+&sdh2 {
+	/* Disabled for now because initialization fails with -ETIMEDOUT. */
+	status = "disabled";
+	bus-width = <8>;
+	non-removable;
+	mmc-ddr-1_8v;
+};
+
+&sdh0 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&sdh0_pins_1 &sdh0_pins_2 &sdh0_pins_3>;
+	cd-gpios = <&gpio 11 0>;
+	cd-inverted;
+	bus-width = <4>;
+	wp-inverted;
+};
diff --git a/arch/arm64/boot/dts/marvell/pxa1908.dtsi b/arch/arm64/boot/dts/marvell/pxa1908.dtsi
new file mode 100644
index 000000000000..9933cec5b7d2
--- /dev/null
+++ b/arch/arm64/boot/dts/marvell/pxa1908.dtsi
@@ -0,0 +1,304 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/dts-v1/;
+
+#include <dt-bindings/interrupt-controller/arm-gic.h>
+#include <dt-bindings/clock/marvell,pxa1908.h>
+
+/ {
+	model = "Marvell Armada PXA1908";
+	compatible = "marvell,pxa1908";
+	#address-cells = <2>;
+	#size-cells = <2>;
+	interrupt-parent = <&gic>;
+
+	cpus {
+		#address-cells = <2>;
+		#size-cells = <0>;
+
+		cpu0: cpu@0 {
+			device_type = "cpu";
+			compatible = "arm,cortex-a53";
+			reg = <0 0>;
+			enable-method = "psci";
+		};
+
+		cpu1: cpu@1 {
+			device_type = "cpu";
+			compatible = "arm,cortex-a53";
+			reg = <0 1>;
+			enable-method = "psci";
+		};
+
+		cpu2: cpu@2 {
+			device_type = "cpu";
+			compatible = "arm,cortex-a53";
+			reg = <0 2>;
+			enable-method = "psci";
+		};
+
+		cpu3: cpu@3 {
+			device_type = "cpu";
+			compatible = "arm,cortex-a53";
+			reg = <0 3>;
+			enable-method = "psci";
+		};
+	};
+
+	pmu {
+		compatible = "arm,cortex-a53-pmu";
+		interrupts = <GIC_SPI 84 IRQ_TYPE_LEVEL_HIGH>,
+			<GIC_SPI 85 IRQ_TYPE_LEVEL_HIGH>,
+			<GIC_SPI 86 IRQ_TYPE_LEVEL_HIGH>,
+			<GIC_SPI 87 IRQ_TYPE_LEVEL_HIGH>;
+		interrupt-affinity = <&cpu0>, <&cpu1>, <&cpu2>, <&cpu3>;
+	};
+
+	psci {
+		compatible = "arm,psci-0.2";
+		method = "smc";
+	};
+
+	timer {
+		compatible = "arm,armv8-timer";
+		interrupts = <GIC_PPI 13 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>,
+			<GIC_PPI 14 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>,
+			<GIC_PPI 11 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>,
+			<GIC_PPI 10 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>;
+	};
+
+	soc {
+		compatible = "simple-bus";
+		#address-cells = <2>;
+		#size-cells = <2>;
+		ranges;
+
+		smmu: iommu@c0010000 {
+			compatible = "arm,mmu-400";
+			reg = <0 0xc0010000 0 0x10000>;
+			#global-interrupts = <1>;
+			#iommu-cells = <1>;
+			interrupts = <GIC_SPI 78 IRQ_TYPE_LEVEL_HIGH>,
+				<GIC_SPI 78 IRQ_TYPE_LEVEL_HIGH>;
+			status = "disabled";
+		};
+
+		gic: interrupt-controller@d1df9000 {
+			compatible = "arm,gic-400";
+			reg = <0 0xd1df9000 0 0x1000>,
+				<0 0xd1dfa000 0 0x2000>,
+				/* The subsequent registers are guesses. */
+				<0 0xd1dfc000 0 0x2000>,
+				<0 0xd1dfe000 0 0x2000>;
+			interrupts = <GIC_PPI 9 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>;
+			interrupt-controller;
+			#interrupt-cells = <3>;
+		};
+
+		apb@d4000000 {
+			compatible = "simple-bus";
+			reg = <0 0xd4000000 0 0x200000>;
+			#address-cells = <1>;
+			#size-cells = <1>;
+			ranges = <0 0 0xd4000000 0x200000>;
+
+			pdma: dma-controller@0 {
+				compatible = "marvell,pdma-1.0";
+				reg = <0 0x10000>;
+				interrupts = <GIC_SPI 47 IRQ_TYPE_LEVEL_HIGH>;
+				dma-channels = <30>;
+				#dma-cells = <2>;
+			};
+
+			twsi1: i2c@10800 {
+				compatible = "mrvl,mmp-twsi";
+				#address-cells = <1>;
+				#size-cells = <0>;
+				reg = <0x10800 0x64>;
+				interrupts = <GIC_SPI 33 IRQ_TYPE_LEVEL_HIGH>;
+				clocks = <&apbc PXA1908_CLK_TWSI1>;
+				mrvl,i2c-fast-mode;
+				status = "disabled";
+			};
+
+			twsi0: i2c@11000 {
+				compatible = "mrvl,mmp-twsi";
+				#address-cells = <1>;
+				#size-cells = <0>;
+				reg = <0x11000 0x64>;
+				interrupts = <GIC_SPI 7 IRQ_TYPE_LEVEL_HIGH>;
+				clocks = <&apbc PXA1908_CLK_TWSI0>;
+				mrvl,i2c-fast-mode;
+				status = "disabled";
+			};
+
+			twsi3: i2c@13800 {
+				compatible = "mrvl,mmp-twsi";
+				#address-cells = <1>;
+				#size-cells = <0>;
+				reg = <0x13800 0x64>;
+				interrupts = <GIC_SPI 93 IRQ_TYPE_LEVEL_HIGH>;
+				clocks = <&apbc PXA1908_CLK_TWSI3>;
+				mrvl,i2c-fast-mode;
+				status = "disabled";
+			};
+
+			apbc: clock-controller@15000 {
+				compatible = "marvell,pxa1908-apbc";
+				reg = <0x15000 0x1000>;
+				#clock-cells = <1>;
+			};
+
+			uart0: serial@17000 {
+				compatible = "mrvl,mmp-uart", "intel,xscale-uart";
+				reg = <0x17000 0x1000>;
+				interrupts = <GIC_SPI 27 IRQ_TYPE_LEVEL_HIGH>;
+				clocks = <&apbc PXA1908_CLK_UART0>;
+				reg-shift = <2>;
+			};
+
+			uart1: serial@18000 {
+				compatible = "mrvl,mmp-uart", "intel,xscale-uart";
+				reg = <0x18000 0x1000>;
+				interrupts = <GIC_SPI 28 IRQ_TYPE_LEVEL_HIGH>;
+				clocks = <&apbc PXA1908_CLK_UART1>;
+				reg-shift = <2>;
+			};
+
+			gpio: gpio@19000 {
+				compatible = "marvell,mmp-gpio";
+				reg = <0x19000 0x800>;
+				#address-cells = <1>;
+				#size-cells = <1>;
+				gpio-controller;
+				#gpio-cells = <2>;
+				clocks = <&apbc PXA1908_CLK_GPIO>;
+				interrupts = <GIC_SPI 49 IRQ_TYPE_LEVEL_HIGH>;
+				interrupt-names = "gpio_mux";
+				interrupt-controller;
+				#interrupt-cells = <2>;
+				ranges = <0 0x19000 0x800>;
+
+				gpio@0 {
+					reg = <0x0 0x4>;
+				};
+
+				gpio@4 {
+					reg = <0x4 0x4>;
+				};
+
+				gpio@8 {
+					reg = <0x8 0x4>;
+				};
+
+				gpio@100 {
+					reg = <0x100 0x4>;
+				};
+			};
+
+			pmx: pinmux@1e000 {
+				compatible = "marvell,pxa1908-padconf", "pinconf-single";
+				reg = <0x1e000 0x330>;
+				#address-cells = <1>;
+				#size-cells = <1>;
+				#gpio-range-cells = <3>;
+				ranges;
+
+				#pinctrl-cells = <1>;
+				pinctrl-single,register-width = <32>;
+				pinctrl-single,function-mask = <7>;
+
+				range: gpio-range {
+					#pinctrl-single,gpio-range-cells = <3>;
+				};
+			};
+
+			uart2: serial@36000 {
+				compatible = "mrvl,mmp-uart", "intel,xscale-uart";
+				reg = <0x36000 0x1000>;
+				interrupts = <GIC_SPI 59 IRQ_TYPE_LEVEL_HIGH>;
+				clocks = <&apbcp PXA1908_CLK_UART2>;
+				reg-shift = <2>;
+			};
+
+			twsi2: i2c@37000 {
+				compatible = "mrvl,mmp-twsi";
+				#address-cells = <1>;
+				#size-cells = <0>;
+				reg = <0x37000 0x64>;
+				interrupts = <GIC_SPI 54 IRQ_TYPE_LEVEL_HIGH>;
+				clocks = <&apbcp PXA1908_CLK_TWSI2>;
+				mrvl,i2c-fast-mode;
+				status = "disabled";
+			};
+
+			apbcp: clock-controller@3b000 {
+				compatible = "marvell,pxa1908-apbcp";
+				reg = <0x3b000 0x1000>;
+				#clock-cells = <1>;
+			};
+
+			mpmu: clock-controller@50000 {
+				compatible = "marvell,pxa1908-mpmu";
+				reg = <0x50000 0x1000>;
+				#clock-cells = <1>;
+			};
+		};
+
+		axi@d4200000 {
+			compatible = "simple-bus";
+			reg = <0 0xd4200000 0 0x200000>;
+			#address-cells = <1>;
+			#size-cells = <1>;
+			ranges = <0 0 0xd4200000 0x200000>;
+
+			usbphy: phy@7000 {
+				compatible = "marvell,pxa1928-usb-phy";
+				reg = <0x7000 0x200>;
+				clocks = <&apmu PXA1908_CLK_USB>;
+				#phy-cells = <0>;
+			};
+
+			usb: usb@8000 {
+				compatible = "chipidea,usb2";
+				reg = <0x8000 0x200>;
+				interrupts = <GIC_SPI 44 IRQ_TYPE_LEVEL_HIGH>;
+				clocks = <&apmu PXA1908_CLK_USB>;
+				phys = <&usbphy>;
+				phy-names = "usb-phy";
+			};
+
+			sdh0: mmc@80000 {
+				compatible = "mrvl,pxav3-mmc";
+				reg = <0x80000 0x120>;
+				interrupts = <GIC_SPI 39 IRQ_TYPE_LEVEL_HIGH>;
+				clocks = <&apmu PXA1908_CLK_SDH0>;
+				clock-names = "io";
+				mrvl,clk-delay-cycles = <31>;
+			};
+
+			sdh1: mmc@80800 {
+				compatible = "mrvl,pxav3-mmc";
+				reg = <0x80800 0x120>;
+				interrupts = <GIC_SPI 39 IRQ_TYPE_LEVEL_HIGH>;
+				clocks = <&apmu PXA1908_CLK_SDH1>;
+				clock-names = "io";
+				mrvl,clk-delay-cycles = <31>;
+			};
+
+			sdh2: mmc@81000 {
+				compatible = "mrvl,pxav3-mmc";
+				reg = <0x81000 0x120>;
+				interrupts = <GIC_SPI 39 IRQ_TYPE_LEVEL_HIGH>;
+				clocks = <&apmu PXA1908_CLK_SDH2>;
+				clock-names = "io";
+				mrvl,clk-delay-cycles = <31>;
+			};
+
+			apmu: clock-controller@82800 {
+				compatible = "marvell,pxa1908-apmu";
+				reg = <0x82800 0x400>;
+				#clock-cells = <1>;
+			};
+		};
+	};
+};
-- 
2.44.0

[PATCH v9 9/9] MAINTAINERS: add myself as Marvell PXA1908 maintainer

[Duje Mihanović]

Add myself as the maintainer for Marvell PXA1908 SoC support.

Signed-off-by: Duje Mihanović <duje.mihanovic@skole.hr>
---
 MAINTAINERS | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/MAINTAINERS b/MAINTAINERS
index 7c121493f43d..a7c19ffb739e 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -2371,6 +2371,15 @@ F:	drivers/irqchip/irq-mvebu-*
 F:	drivers/pinctrl/mvebu/
 F:	drivers/rtc/rtc-armada38x.c
 
+ARM/Marvell PXA1908 SOC support
+M:	Duje Mihanović <duje.mihanovic@skole.hr>
+L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
+S:	Maintained
+T:	git https://gitlab.com/LegoLivesMatter/linux
+F:	arch/arm64/boot/dts/marvell/pxa1908*
+F:	drivers/clk/mmp/clk-of-pxa1908.c
+F:	include/dt-bindings/clock/marvell,pxa1908.h
+
 ARM/Mediatek RTC DRIVER
 M:	Eddie Huang <eddie.huang@mediatek.com>
 M:	Sean Wang <sean.wang@mediatek.com>
-- 
2.44.0

Re: [PATCH v9 0/9] Initial Marvell PXA1908 support

[Rob Herring]

On Tue, 02 Apr 2024 22:55:36 +0200, Duje Mihanović wrote:
> Hello,
> 
> This series adds initial support for the Marvell PXA1908 SoC and
> "samsung,coreprimevelte", a smartphone using the SoC.
> 
> USB works and the phone can boot a rootfs from an SD card, but there are
> some warnings in the dmesg:
> 
> During SMP initialization:
> [    0.006519] CPU features: SANITY CHECK: Unexpected variation in SYS_CNTFRQ_EL0. Boot CPU: 0x000000018cba80, CPU1: 0x00000000000000
> [    0.006542] CPU features: Unsupported CPU feature variation detected.
> [    0.006589] CPU1: Booted secondary processor 0x0000000001 [0x410fd032]
> [    0.010710] Detected VIPT I-cache on CPU2
> [    0.010716] CPU features: SANITY CHECK: Unexpected variation in SYS_CNTFRQ_EL0. Boot CPU: 0x000000018cba80, CPU2: 0x00000000000000
> [    0.010758] CPU2: Booted secondary processor 0x0000000002 [0x410fd032]
> [    0.014849] Detected VIPT I-cache on CPU3
> [    0.014855] CPU features: SANITY CHECK: Unexpected variation in SYS_CNTFRQ_EL0. Boot CPU: 0x000000018cba80, CPU3: 0x00000000000000
> [    0.014895] CPU3: Booted secondary processor 0x0000000003 [0x410fd032]
> 
> SMMU probing fails:
> [    0.101798] arm-smmu c0010000.iommu: probing hardware configuration...
> [    0.101809] arm-smmu c0010000.iommu: SMMUv1 with:
> [    0.101816] arm-smmu c0010000.iommu:         no translation support!
> 
> A 3.14 based Marvell tree is available on GitHub
> acorn-marvell/brillo_pxa_kernel, and a Samsung one on GitHub
> CoderCharmander/g361f-kernel.
> 
> Andreas Färber attempted to upstream support for this SoC in 2017:
> https://lore.kernel.org/lkml/20170222022929.10540-1-afaerber@suse.de/
> 
> Signed-off-by: Duje Mihanović <duje.mihanovic@skole.hr>
> 
> Changes in v9:
> - Update trailers and rebase on v6.9-rc2, no changes
> - Link to v8: https://lore.kernel.org/20240110-pxa1908-lkml-v8-0-fea768a59474@skole.hr
> 
> Changes in v8:
> - Drop SSPA patch
> - Drop broken-cd from eMMC node
> - Specify S-Boot hardcoded initramfs location in device tree
> - Add ARM PMU node
> - Correct inverted modem memory base and size
> - Update trailers
> - Rebase on next-20240110
> - Link to v7: https://lore.kernel.org/20231102-pxa1908-lkml-v7-0-cabb1a0cb52b@skole.hr
>   and https://lore.kernel.org/20231102152033.5511-1-duje.mihanovic@skole.hr
> 
> Changes in v7:
> - Suppress SND_MMP_SOC_SSPA on ARM64
> - Update trailers
> - Rebase on v6.6-rc7
> - Link to v6: https://lore.kernel.org/r/20231010-pxa1908-lkml-v6-0-b2fe09240cf8@skole.hr
> 
> Changes in v6:
> - Address maintainer comments:
>   - Add "marvell,pxa1908-padconf" binding to pinctrl-single driver
> - Drop GPIO patch as it's been pulled
> - Update trailers
> - Rebase on v6.6-rc5
> - Link to v5: https://lore.kernel.org/r/20230812-pxa1908-lkml-v5-0-a5d51937ee34@skole.hr
> 
> Changes in v5:
> - Address maintainer comments:
>   - Move *_NR_CLKS to clock driver from dt binding file
> - Allocate correct number of clocks for each block instead of blindly
>   allocating 50 for each
> - Link to v4: https://lore.kernel.org/r/20230807-pxa1908-lkml-v4-0-cb387d73b452@skole.hr
> 
> Changes in v4:
> - Address maintainer comments:
>   - Relicense clock binding file to BSD-2
> - Add pinctrl-names to SD card node
> - Add vgic registers to GIC node
> - Rebase on v6.5-rc5
> - Link to v3: https://lore.kernel.org/r/20230804-pxa1908-lkml-v3-0-8e48fca37099@skole.hr
> 
> Changes in v3:
> - Address maintainer comments:
>   - Drop GPIO dynamic allocation patch
>   - Move clock register offsets into driver (instead of bindings file)
>   - Add missing Tested-by trailer to u32_fract patch
>   - Move SoC binding to arm/mrvl/mrvl.yaml
> - Add serial0 alias and stdout-path to board dts to enable UART
>   debugging
> - Rebase on v6.5-rc4
> - Link to v2: https://lore.kernel.org/r/20230727162909.6031-1-duje.mihanovic@skole.hr
> 
> Changes in v2:
> - Remove earlycon patch as it's been merged into tty-next
> - Address maintainer comments:
>   - Clarify GPIO regressions on older PXA platforms
>   - Add Fixes tag to commit disabling GPIO pinctrl calls for this SoC
>   - Add missing includes to clock driver
>   - Clock driver uses HZ_PER_MHZ, u32_fract and GENMASK
>   - Dual license clock bindings
>   - Change clock IDs to decimal
>   - Fix underscores in dt node names
>   - Move chosen node to top of board dts
>   - Clean up documentation
>   - Reorder commits
>   - Drop pxa,rev-id
> - Rename muic-i2c to i2c-muic
> - Reword some commits
> - Move framebuffer node to chosen
> - Add aliases for mmc nodes
> - Rebase on v6.5-rc3
> - Link to v1: https://lore.kernel.org/r/20230721210042.21535-1-duje.mihanovic@skole.hr
> 
> ---
> Andy Shevchenko (1):
>       clk: mmp: Switch to use struct u32_fract instead of custom one
> 
> Duje Mihanović (8):
>       dt-bindings: pinctrl: pinctrl-single: add marvell,pxa1908-padconf compatible
>       pinctrl: single: add marvell,pxa1908-padconf compatible
>       dt-bindings: clock: Add Marvell PXA1908 clock bindings
>       clk: mmp: Add Marvell PXA1908 clock driver
>       dt-bindings: marvell: Document PXA1908 SoC
>       arm64: Kconfig.platforms: Add config for Marvell PXA1908 platform
>       arm64: dts: Add DTS for Marvell PXA1908 and samsung,coreprimevelte
>       MAINTAINERS: add myself as Marvell PXA1908 maintainer
> 
>  .../devicetree/bindings/arm/mrvl/mrvl.yaml         |   5 +
>  .../devicetree/bindings/clock/marvell,pxa1908.yaml |  48 +++
>  .../bindings/pinctrl/pinctrl-single.yaml           |   4 +
>  MAINTAINERS                                        |   9 +
>  arch/arm64/Kconfig.platforms                       |   8 +
>  arch/arm64/boot/dts/marvell/Makefile               |   3 +
>  .../dts/marvell/pxa1908-samsung-coreprimevelte.dts | 336 +++++++++++++++++++++
>  arch/arm64/boot/dts/marvell/pxa1908.dtsi           | 304 +++++++++++++++++++
>  drivers/clk/mmp/Makefile                           |   2 +-
>  drivers/clk/mmp/clk-frac.c                         |  57 ++--
>  drivers/clk/mmp/clk-of-mmp2.c                      |  26 +-
>  drivers/clk/mmp/clk-of-pxa168.c                    |   4 +-
>  drivers/clk/mmp/clk-of-pxa1908.c                   | 328 ++++++++++++++++++++
>  drivers/clk/mmp/clk-of-pxa1928.c                   |   6 +-
>  drivers/clk/mmp/clk-of-pxa910.c                    |   4 +-
>  drivers/clk/mmp/clk.h                              |  10 +-
>  drivers/pinctrl/pinctrl-single.c                   |   1 +
>  include/dt-bindings/clock/marvell,pxa1908.h        |  88 ++++++
>  18 files changed, 1186 insertions(+), 57 deletions(-)
> ---
> base-commit: 39cd87c4eb2b893354f3b850f916353f2658ae6f
> change-id: 20230803-pxa1908-lkml-6830e8da45c7
> 
> Best regards,
> --
> Duje Mihanović <duje.mihanovic@skole.hr>
> 
> 
> 


My bot found new DTB warnings on the .dts files added or changed in this
series.

Some warnings may be from an existing SoC .dtsi. Or perhaps the warnings
are fixed by another series. Ultimately, it is up to the platform
maintainer whether these warnings are acceptable or not. No need to reply
unless the platform maintainer has comments.

If you already ran DT checks and didn't see these error(s), then
make sure dt-schema is up to date:

  pip3 install dtschema --upgrade


New warnings running 'make CHECK_DTBS=y marvell/pxa1908-samsung-coreprimevelte.dtb' for 20240402-pxa1908-lkml-v9-0-25a003e83c6f@skole.hr:

arch/arm64/boot/dts/marvell/pxa1908-samsung-coreprimevelte.dtb: /: memory: False schema does not allow {'device_type': ['memory'], 'reg': [[0, 0, 0, 0]]}
	from schema $id: http://devicetree.org/schemas/root-node.yaml#
arch/arm64/boot/dts/marvell/pxa1908-samsung-coreprimevelte.dtb: pinmux@1e000: #size-cells: 0 was expected
	from schema $id: http://devicetree.org/schemas/pinctrl/pinctrl-single.yaml#
arch/arm64/boot/dts/marvell/pxa1908-samsung-coreprimevelte.dtb: pinmux@1e000: pinctrl-single,gpio-range: [[8, 55, 55, 0], [8, 110, 32, 0], [8, 52, 1, 0]] is too long
	from schema $id: http://devicetree.org/schemas/pinctrl/pinctrl-single.yaml#
arch/arm64/boot/dts/marvell/pxa1908-samsung-coreprimevelte.dtb: pinmux@1e000: 'pinmux-board-1', 'pinmux-board-2', 'pinmux-board-3', 'pinmux-gpio-keys', 'pinmux-i2c-muic', 'pinmux-sdh0-1', 'pinmux-sdh0-2', 'pinmux-sdh0-3', 'pinmux-uart0', 'ranges' do not match any of the regexes: '-pins(-[0-9]+)?$|-pin$', 'pinctrl-[0-9]+'
	from schema $id: http://devicetree.org/schemas/pinctrl/pinctrl-single.yaml#
arch/arm64/boot/dts/marvell/pxa1908-samsung-coreprimevelte.dtb: mmc@80000: pinctrl-names: ['default'] is too short
	from schema $id: http://devicetree.org/schemas/mmc/sdhci-pxa.yaml#
arch/arm64/boot/dts/marvell/pxa1908-samsung-coreprimevelte.dtb: mmc@80000: Unevaluated properties are not allowed ('pinctrl-names' was unexpected)
	from schema $id: http://devicetree.org/schemas/mmc/sdhci-pxa.yaml#

Re: [PATCH v9 1/9] clk: mmp: Switch to use struct u32_fract instead of custom one

[Stephen Boyd]

Quoting Duje Mihanović (2024-04-02 13:55:37)
> From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
> 
> The struct mmp_clk_factor_tbl repeats the generic struct u32_fract.
> Kill the custom one and use the generic one instead.
> 
> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
> Tested-by: Duje Mihanović <duje.mihanovic@skole.hr>
> Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
> Signed-off-by: Duje Mihanović <duje.mihanovic@skole.hr>
> ---

Reviewed-by: Stephen Boyd <sboyd@kernel.org>

> 
> diff --git a/drivers/clk/mmp/clk.h b/drivers/clk/mmp/clk.h
> index 55ac05379781..c83cec169ddc 100644
> --- a/drivers/clk/mmp/clk.h
> +++ b/drivers/clk/mmp/clk.h
> @@ -3,6 +3,7 @@
>  #define __MACH_MMP_CLK_H
>  
>  #include <linux/clk-provider.h>
> +#include <linux/math.h>
>  #include <linux/pm_domain.h>
>  #include <linux/clkdev.h>
> 

This clkdev include should be dropped in another patch.

Re: [PATCH v9 4/9] dt-bindings: clock: Add Marvell PXA1908 clock bindings

[Stephen Boyd]

Quoting Duje Mihanović (2024-04-02 13:55:40)
> Add dt bindings and documentation for the Marvell PXA1908 clock
> controller.
> 
> Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
> Signed-off-by: Duje Mihanović <duje.mihanovic@skole.hr>
> ---

Reviewed-by: Stephen Boyd <sboyd@kernel.org>

Re: [PATCH v9 5/9] clk: mmp: Add Marvell PXA1908 clock driver

[Stephen Boyd]

Quoting Duje Mihanović (2024-04-02 13:55:41)
> diff --git a/drivers/clk/mmp/clk-of-pxa1908.c b/drivers/clk/mmp/clk-of-pxa1908.c
> new file mode 100644
> index 000000000000..6f1f6e25a718
> --- /dev/null
> +++ b/drivers/clk/mmp/clk-of-pxa1908.c
> @@ -0,0 +1,328 @@
> +// SPDX-License-Identifier: GPL-2.0-only
[...]
> +static void __init pxa1908_apbc_clk_init(struct device_node *np)
> +{
> +       struct pxa1908_clk_unit *pxa_unit;
> +
> +       pxa_unit = kzalloc(sizeof(*pxa_unit), GFP_KERNEL);
> +       if (!pxa_unit)
> +               return;
> +
> +       pxa_unit->apbc_base = of_iomap(np, 0);
> +       if (!pxa_unit->apbc_base) {
> +               pr_err("failed to map apbc registers\n");
> +               kfree(pxa_unit);
> +               return;
> +       }
> +
> +       mmp_clk_init(np, &pxa_unit->unit, APBC_NR_CLKS);
> +
> +       pxa1908_apb_periph_clk_init(pxa_unit);
> +}
> +CLK_OF_DECLARE(pxa1908_apbc, "marvell,pxa1908-apbc", pxa1908_apbc_clk_init);

Is there a reason this file can't be a platform driver?

Re: [PATCH v9 5/9] clk: mmp: Add Marvell PXA1908 clock driver

[Duje Mihanović]

On 4/11/2024 10:00 AM, Stephen Boyd wrote:
> Quoting Duje Mihanović (2024-04-02 13:55:41)
>> diff --git a/drivers/clk/mmp/clk-of-pxa1908.c b/drivers/clk/mmp/clk-of-pxa1908.c
>> new file mode 100644
>> index 000000000000..6f1f6e25a718
>> --- /dev/null
>> +++ b/drivers/clk/mmp/clk-of-pxa1908.c
>> @@ -0,0 +1,328 @@
>> +// SPDX-License-Identifier: GPL-2.0-only
> [...]
>> +static void __init pxa1908_apbc_clk_init(struct device_node *np)
>> +{
>> +       struct pxa1908_clk_unit *pxa_unit;
>> +
>> +       pxa_unit = kzalloc(sizeof(*pxa_unit), GFP_KERNEL);
>> +       if (!pxa_unit)
>> +               return;
>> +
>> +       pxa_unit->apbc_base = of_iomap(np, 0);
>> +       if (!pxa_unit->apbc_base) {
>> +               pr_err("failed to map apbc registers\n");
>> +               kfree(pxa_unit);
>> +               return;
>> +       }
>> +
>> +       mmp_clk_init(np, &pxa_unit->unit, APBC_NR_CLKS);
>> +
>> +       pxa1908_apb_periph_clk_init(pxa_unit);
>> +}
>> +CLK_OF_DECLARE(pxa1908_apbc, "marvell,pxa1908-apbc", pxa1908_apbc_clk_init);
> 
> Is there a reason this file can't be a platform driver?

Not that I know of, I did it like this only because the other in-tree 
MMP clk drivers do so. I guess the initialization should look like any 
of the qcom GCC drivers then?

While at it, do you think the other MMP clk drivers could use a conversion?

Regards,
-- 
Duje

Re: [PATCH v9 5/9] clk: mmp: Add Marvell PXA1908 clock driver

[Stephen Boyd]

Quoting Duje Mihanović (2024-04-11 03:15:34)
> On 4/11/2024 10:00 AM, Stephen Boyd wrote:
> > 
> > Is there a reason this file can't be a platform driver?
> 
> Not that I know of, I did it like this only because the other in-tree 
> MMP clk drivers do so. I guess the initialization should look like any 
> of the qcom GCC drivers then?

Yes.

> 
> While at it, do you think the other MMP clk drivers could use a conversion?
> 

Sure, go for it. I'm a little wary if the conversion cannot be tested
though. It doesn't hurt that other drivers haven't been converted.

Re: [PATCH v9 5/9] clk: mmp: Add Marvell PXA1908 clock driver

[Duje Mihanović]

On Friday, April 12, 2024 4:57:09 AM GMT+2 Stephen Boyd wrote:
> Quoting Duje Mihanović (2024-04-11 03:15:34)
> 
> > On 4/11/2024 10:00 AM, Stephen Boyd wrote:
> > > Is there a reason this file can't be a platform driver?
> > 
> > Not that I know of, I did it like this only because the other in-tree
> > MMP clk drivers do so. I guess the initialization should look like any
> > of the qcom GCC drivers then?
> 
> Yes.

With the entire clock driver code in one file this is quite messy as I also 
needed to add module_init and module_exit functions to (un)register each 
platform driver, presumably because the module_platform_driver macro doesn't 
work with multiple platform drivers in one module. If I split up the driver 
code for each clock controller block into its own file (such as clk-of-
pxa1908-apbc.c) as I believe is the best option, should the commits be split 
up accordingly as well?

> > While at it, do you think the other MMP clk drivers could use a 
conversion?
> 
> I'm a little wary if the conversion cannot be tested though.

I'd rather leave it to someone with the hardware then, especially since the 
only reason I found out about the above is that the board I'm working on 
failed to boot completely without the module_init function.

Regards,
-- 
Duje

Re: [PATCH v9 5/9] clk: mmp: Add Marvell PXA1908 clock driver

[Stephen Boyd]

Quoting Duje Mihanović (2024-04-19 07:31:14)
> On Friday, April 12, 2024 4:57:09 AM GMT+2 Stephen Boyd wrote:
> > Quoting Duje Mihanović (2024-04-11 03:15:34)
> > 
> > > On 4/11/2024 10:00 AM, Stephen Boyd wrote:
> > > > Is there a reason this file can't be a platform driver?
> > > 
> > > Not that I know of, I did it like this only because the other in-tree
> > > MMP clk drivers do so. I guess the initialization should look like any
> > > of the qcom GCC drivers then?
> > 
> > Yes.
> 
> With the entire clock driver code in one file this is quite messy as I also 
> needed to add module_init and module_exit functions to (un)register each 
> platform driver, presumably because the module_platform_driver macro doesn't 
> work with multiple platform drivers in one module. If I split up the driver 
> code for each clock controller block into its own file (such as clk-of-
> pxa1908-apbc.c) as I believe is the best option, should the commits be split 
> up accordingly as well?

Sure. Why is 'of' in the name? Maybe that is unnecessary?

> 
> > > While at it, do you think the other MMP clk drivers could use a 
> conversion?
> > 
> > I'm a little wary if the conversion cannot be tested though.
> 
> I'd rather leave it to someone with the hardware then, especially since the 
> only reason I found out about the above is that the board I'm working on 
> failed to boot completely without the module_init function.
> 

Ok, sounds fine.

Re: [PATCH v9 5/9] clk: mmp: Add Marvell PXA1908 clock driver

[Duje Mihanović]

On 4/20/24 00:24, Stephen Boyd wrote:
> Quoting Duje Mihanović (2024-04-19 07:31:14)
>> On Friday, April 12, 2024 4:57:09 AM GMT+2 Stephen Boyd wrote:
>>> Quoting Duje Mihanović (2024-04-11 03:15:34)
>>>
>>>> On 4/11/2024 10:00 AM, Stephen Boyd wrote:
>>>>> Is there a reason this file can't be a platform driver?
>>>>
>>>> Not that I know of, I did it like this only because the other in-tree
>>>> MMP clk drivers do so. I guess the initialization should look like any
>>>> of the qcom GCC drivers then?
>>>
>>> Yes.
>>
>> With the entire clock driver code in one file this is quite messy as I also
>> needed to add module_init and module_exit functions to (un)register each
>> platform driver, presumably because the module_platform_driver macro doesn't
>> work with multiple platform drivers in one module. If I split up the driver
>> code for each clock controller block into its own file (such as clk-of-
>> pxa1908-apbc.c) as I believe is the best option, should the commits be split
>> up accordingly as well?
> 
> Sure. Why is 'of' in the name? Maybe that is unnecessary?

That seems to be a historical leftover from when Marvell was just adding 
DT support to the ARM32 MMP SoCs which Rob followed along with in the 
PXA1928 clk driver and so have I. Should I drop it then as Marvell has 
in the PXA1908 vendor kernel?

Regards,
--
Duje

Re: [PATCH v9 5/9] clk: mmp: Add Marvell PXA1908 clock driver

[Stephen Boyd]

Quoting Duje Mihanović (2024-04-20 06:32:56)
> On 4/20/24 00:24, Stephen Boyd wrote:
> > Quoting Duje Mihanović (2024-04-19 07:31:14)
> >> On Friday, April 12, 2024 4:57:09 AM GMT+2 Stephen Boyd wrote:
> >>> Quoting Duje Mihanović (2024-04-11 03:15:34)
> >>>
> >>>> On 4/11/2024 10:00 AM, Stephen Boyd wrote:
> >>>>> Is there a reason this file can't be a platform driver?
> >>>>
> >>>> Not that I know of, I did it like this only because the other in-tree
> >>>> MMP clk drivers do so. I guess the initialization should look like any
> >>>> of the qcom GCC drivers then?
> >>>
> >>> Yes.
> >>
> >> With the entire clock driver code in one file this is quite messy as I also
> >> needed to add module_init and module_exit functions to (un)register each
> >> platform driver, presumably because the module_platform_driver macro doesn't
> >> work with multiple platform drivers in one module. If I split up the driver
> >> code for each clock controller block into its own file (such as clk-of-
> >> pxa1908-apbc.c) as I believe is the best option, should the commits be split
> >> up accordingly as well?
> > 
> > Sure. Why is 'of' in the name? Maybe that is unnecessary?
> 
> That seems to be a historical leftover from when Marvell was just adding 
> DT support to the ARM32 MMP SoCs which Rob followed along with in the 
> PXA1928 clk driver and so have I. Should I drop it then as Marvell has 
> in the PXA1908 vendor kernel?
> 

Sounds good to me.