[PATCH 10/11] pmu: axp318w: implement pmic/regulator support
Yixun Lan
dlan at gentoo.org
Sun Nov 16 15:44:01 CET 2025
The PMIC is also known as AXP819 in vendor pmu code
For DCDC6, 8, 9, the underlying hardware support more than two levels
voltage step tuning, but for now only first two levels are implemented
in this driver, hence highest voltage will be limited at seccond level.
It actual meets board requirement in current design, and we've verified
it in Radxa Cubie A7A board.
Following are detail explanation of voltage tuning stpes for those DCDCs:
DCDC | voltage range | units | steps | implemented
6 | 0.5 - 1.2 | 10 mV | 71 | Y
. | 1.22 - 1.54 | 20 mV | 17 | Y
. | 1.8 - 2.4 | 20 mV | 31 | N
. | 2.44 - 2.76 | 40 mV | 9 | N
--------------------------------------------------
8/9 | 0.5 - 1.2 | 10 mV | 71 | Y
. | 1.22 - 1.84 | 20 mV | 32 | Y
. | 1.9 - 3.4 | 100mV | 16 | N
Signed-off-by: Yixun Lan <dlan at gentoo.org>
---
drivers/power/Kconfig | 10 +++++++
drivers/power/pmic/axp.c | 1 +
drivers/power/regulator/axp_regulator.c | 50 +++++++++++++++++++++++++++++++++
include/axp_pmic.h | 1 +
4 files changed, 62 insertions(+)
diff --git a/drivers/power/Kconfig b/drivers/power/Kconfig
index d17337c0c3f..1b06d8a66c7 100644
--- a/drivers/power/Kconfig
+++ b/drivers/power/Kconfig
@@ -58,6 +58,7 @@ choice
default AXP209_POWER if MACH_SUN4I || MACH_SUN5I || MACH_SUN7I
default AXP221_POWER if MACH_SUN6I || MACH_SUN8I_A23 || MACH_SUN8I_A33 || MACH_SUN8I_R40
default AXP818_POWER if MACH_SUN8I_A83T
+ default AXP318W_POWER if MACH_SUN60I_A733
default SUNXI_NO_PMIC if MACH_SUNXI_H3_H5 || MACH_SUN50I || MACH_SUN8I_V3S
config SUNXI_NO_PMIC
@@ -140,6 +141,14 @@ config AXP818_POWER
Say y here to enable support for the axp818 pmic found on
A83T dev board.
+config AXP318W_POWER
+ bool "axp318w pmic support"
+ select AXP_PMIC_BUS
+ select CMD_POWEROFF
+ ---help---
+ Select this to enable support for the AXP318W PMIC found on some
+ A733 boards.
+
config SY8106A_POWER
bool "SY8106A pmic support"
depends on MACH_SUNXI_H3_H5
@@ -154,6 +163,7 @@ config AXP_I2C_ADDRESS
depends on ARCH_SUNXI && !SUNXI_NO_PMIC
default 0x36 if AXP305_POWER
default 0x36 if AXP313_POWER
+ default 0x36 if AXP318W_POWER
default 0x30 if AXP152_POWER
default 0x34
---help---
diff --git a/drivers/power/pmic/axp.c b/drivers/power/pmic/axp.c
index 1204ec00f8d..7d8348b0769 100644
--- a/drivers/power/pmic/axp.c
+++ b/drivers/power/pmic/axp.c
@@ -95,6 +95,7 @@ static const struct udevice_id axp_pmic_ids[] = {
{ .compatible = "x-powers,axp806", .data = AXP806_ID },
{ .compatible = "x-powers,axp809", .data = AXP809_ID },
{ .compatible = "x-powers,axp813", .data = AXP813_ID },
+ { .compatible = "x-powers,axp318w", .data = AXP318_ID },
{ }
};
diff --git a/drivers/power/regulator/axp_regulator.c b/drivers/power/regulator/axp_regulator.c
index 7794a4f5d92..34c575e16eb 100644
--- a/drivers/power/regulator/axp_regulator.c
+++ b/drivers/power/regulator/axp_regulator.c
@@ -189,6 +189,55 @@ static const struct axp_regulator_plat axp313_regulators[] = {
{ }
};
+ /*
+ * Only two level step tuning is implemented for DCDC6, 8, 9
+ * so the voltage below is not support in this driver
+ * DCDC6: 20 (v1.8 - 2.4v), 40 (2.44v - 2.76v)
+ * DCDC8,9: 100 (1.9v - 3.4v)
+ */
+static const struct axp_regulator_plat axp318_regulators[] = {
+ { "dcdc1", 0x10, BIT(0), 0x12, 0x1f, 1000, 3400, 100, 0 },
+ { "dcdc2", 0x10, BIT(1), 0x13, 0x7f, 500, 1540, 10, 70 },
+ { "dcdc3", 0x10, BIT(2), 0x14, 0x7f, 500, 1540, 10, 70 },
+ { "dcdc4", 0x10, BIT(3), 0x15, 0x7f, 500, 1540, 10, 70 },
+ { "dcdc5", 0x10, BIT(4), 0x16, 0x7f, 500, 1540, 10, 70 },
+ { "dcdc6", 0x10, BIT(5), 0x17, 0x7f, 500, 1540, 10, 70 },
+ { "dcdc7", 0x10, BIT(6), 0x18, 0x7f, 500, 1840, 10, 70 },
+ { "dcdc8", 0x10, BIT(7), 0x19, 0x7f, 500, 1840, 10, 70 },
+ { "dcdc9", 0x11, BIT(0), 0x1a, 0x7f, 500, 1840, 10, 70 },
+ { "aldo1", 0x20, BIT(0), 0x24, 0x1f, 500, 3400, 100, NA },
+ { "aldo2", 0x20, BIT(1), 0x25, 0x1f, 500, 3400, 100, NA },
+ { "aldo3", 0x20, BIT(2), 0x26, 0x1f, 500, 3400, 100, NA },
+ { "aldo4", 0x20, BIT(3), 0x27, 0x1f, 500, 3400, 100, NA },
+ { "aldo5", 0x20, BIT(4), 0x28, 0x1f, 500, 3400, 100, NA },
+ { "aldo6", 0x20, BIT(5), 0x29, 0x1f, 500, 3400, 100, NA },
+ { "bldo1", 0x20, BIT(6), 0x2a, 0x1f, 500, 3400, 100, NA },
+ { "bldo2", 0x20, BIT(7), 0x2b, 0x1f, 500, 3400, 100, NA },
+ { "bldo3", 0x21, BIT(0), 0x2c, 0x1f, 500, 3400, 100, NA },
+ { "bldo4", 0x21, BIT(1), 0x2d, 0x1f, 500, 3400, 100, NA },
+ { "bldo5", 0x21, BIT(2), 0x2e, 0x1f, 500, 3400, 100, NA },
+ { "cldo1", 0x21, BIT(3), 0x2f, 0x1f, 500, 3400, 100, NA },
+ { "cldo2", 0x21, BIT(4), 0x30, 0x1f, 500, 3400, 100, NA },
+ { "cldo3", 0x21, BIT(5), 0x31, 0x1f, 500, 3400, 100, NA },
+ { "cldo4", 0x21, BIT(6), 0x32, 0x1f, 500, 3400, 100, NA },
+ { "cldo5", 0x21, BIT(7), 0x33, 0x1f, 500, 3400, 100, NA },
+ { "dldo1", 0x22, BIT(0), 0x34, 0x1f, 500, 3400, 100, NA },
+ { "dldo2", 0x22, BIT(1), 0x35, 0x1f, 500, 3400, 100, NA },
+ { "dldo3", 0x22, BIT(2), 0x36, 0x1f, 500, 3400, 100, NA },
+ { "dldo4", 0x22, BIT(3), 0x37, 0x1f, 500, 3400, 100, NA },
+ { "dldo5", 0x22, BIT(4), 0x38, 0x1f, 500, 3400, 100, NA },
+ { "dldo6", 0x22, BIT(5), 0x39, 0x1f, 500, 3400, 100, NA },
+ { "eldo1", 0x22, BIT(6), 0x3a, 0x1f, 500, 1500, 25, NA },
+ { "eldo2", 0x22, BIT(7), 0x3b, 0x1f, 500, 1500, 25, NA },
+ { "eldo3", 0x23, BIT(0), 0x3c, 0x1f, 500, 1500, 25, NA },
+ { "eldo4", 0x23, BIT(1), 0x3d, 0x1f, 500, 1500, 25, NA },
+ { "eldo5", 0x23, BIT(2), 0x3e, 0x1f, 500, 1500, 25, NA },
+ { "eldo6", 0x23, BIT(3), 0x3f, 0x1f, 500, 1500, 25, NA },
+ { "dc1sw1", 0x11, BIT(3), NA, NA, NA, NA, NA, NA },
+ { "dc1sw2", 0x11, BIT(4), NA, NA, NA, NA, NA, NA },
+ { }
+};
+
/*
* The "dcdc2" regulator has another range, beyond 1.54V up to 3.4V, in
* steps of 100mV. We cannot model this easily, but also don't need that,
@@ -318,6 +367,7 @@ static const struct axp_regulator_plat *const axp_regulators[] = {
[AXP221_ID] = axp22x_regulators,
[AXP223_ID] = axp22x_regulators,
[AXP313_ID] = axp313_regulators,
+ [AXP318_ID] = axp318_regulators,
[AXP323_ID] = axp313_regulators,
[AXP717_ID] = axp717_regulators,
[AXP803_ID] = axp803_regulators,
diff --git a/include/axp_pmic.h b/include/axp_pmic.h
index 1806a7270a0..2f547da74c2 100644
--- a/include/axp_pmic.h
+++ b/include/axp_pmic.h
@@ -39,6 +39,7 @@ enum {
AXP806_ID,
AXP809_ID,
AXP813_ID,
+ AXP318_ID,
};
int axp_set_dcdc1(unsigned int mvolt);
--
2.51.2
More information about the U-Boot
mailing list