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power: pmic: sunxi: add SPL support for the AXP803

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The AXP803 has been around for about a decade now, but so far we didn't
need SPL support, since the DRAM rail was wired up correctly at reset.

Now some boards using the A133 SoC use the (compatible) AXP707 with DDR4
memory, which requires the SPL to set the required 1.1V voltage manually.

Add the descriptions for the DC/DC regulators of the AXP803, and enable
that when CONFIG_AXP803_POWER is enabled.

Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Acked-by: Jernej Skrabec <jernej.skrabec@gmail.com>
This commit is contained in:
Andre Przywara
2024-10-20 17:36:19 +01:00
parent 720023c85f
commit 6ba4d46ef6
4 changed files with 33 additions and 5 deletions
Download Patch File Download Diff File Expand all files Collapse all files

5
board/sunxi/board.c
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@@ -563,7 +563,8 @@ void sunxi_board_init(void)
#if defined CONFIG_AXP152_POWER || defined CONFIG_AXP209_POWER || \
defined CONFIG_AXP221_POWER || defined CONFIG_AXP305_POWER || \
defined CONFIG_AXP809_POWER || defined CONFIG_AXP818_POWER || \
defined CONFIG_AXP313_POWER || defined CONFIG_AXP717_POWER
defined CONFIG_AXP313_POWER || defined CONFIG_AXP717_POWER || \
defined CONFIG_AXP803_POWER
power_failed = axp_init();
if (IS_ENABLED(CONFIG_AXP_DISABLE_BOOT_ON_POWERON) && !power_failed) {
@@ -581,6 +582,8 @@ void sunxi_board_init(void)
#endif
#ifdef CONFIG_AXP_DCDC2_VOLT
power_failed |= axp_set_dcdc2(CONFIG_AXP_DCDC2_VOLT);
#endif
#ifdef CONFIG_AXP_DCDC3_VOLT
power_failed |= axp_set_dcdc3(CONFIG_AXP_DCDC3_VOLT);
#endif
#ifdef CONFIG_AXP_DCDC4_VOLT

15
drivers/power/Kconfig
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@@ -116,6 +116,12 @@ config AXP717_POWER
---help---
Select this to enable support for the AXP717 PMIC found on some boards.
config AXP803_POWER
bool "AXP803 PMIC support"
select AXP_PMIC_BUS
---help---
Select this to enable support for the AXP803 PMIC found on some boards.
config AXP809_POWER
bool "axp809 pmic support"
depends on MACH_SUN9I
@@ -144,8 +150,8 @@ endchoice
config AXP_DCDC1_VOLT
int "axp pmic dcdc1 voltage"
depends on AXP221_POWER || AXP809_POWER || AXP818_POWER
default 3300 if AXP818_POWER || MACH_SUN8I_R40
depends on AXP221_POWER || AXP809_POWER || AXP818_POWER || AXP803_POWER
default 3300 if AXP818_POWER || MACH_SUN8I_R40 || AXP803_POWER
default 3000 if MACH_SUN6I || MACH_SUN8I || MACH_SUN9I
---help---
Set the voltage (mV) to program the axp pmic dcdc1 at, set to 0 to
@@ -158,11 +164,12 @@ config AXP_DCDC1_VOLT
config AXP_DCDC2_VOLT
int "axp pmic dcdc2 voltage"
depends on AXP152_POWER || AXP209_POWER || AXP221_POWER || AXP809_POWER || AXP818_POWER || AXP313_POWER || AXP717_POWER
depends on AXP152_POWER || AXP209_POWER || AXP221_POWER || AXP809_POWER || AXP818_POWER || AXP313_POWER || AXP717_POWER || AXP803_POWER
default 900 if AXP818_POWER
default 1400 if AXP152_POWER || AXP209_POWER
default 1000 if AXP313_POWER
default 1000 if AXP717_POWER
default 1000 if AXP803_POWER
default 1200 if MACH_SUN6I
default 1100 if MACH_SUN8I
default 0 if MACH_SUN9I
@@ -219,7 +226,7 @@ config AXP_DCDC4_VOLT
config AXP_DCDC5_VOLT
int "axp pmic dcdc5 voltage"
depends on AXP221_POWER || AXP809_POWER || AXP818_POWER
depends on AXP221_POWER || AXP809_POWER || AXP818_POWER || AXP803_POWER
default 1500 if MACH_SUN6I || MACH_SUN8I || MACH_SUN9I
---help---
Set the voltage (mV) to program the axp pmic dcdc5 at, set to 0 to

1
drivers/power/Makefile
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@@ -17,6 +17,7 @@ obj-$(CONFIG_AXP313_POWER) += axp_spl.o
obj-$(CONFIG_AXP717_POWER) += axp_spl.o
obj-$(CONFIG_AXP809_POWER) += axp809.o
obj-$(CONFIG_AXP818_POWER) += axp818.o
obj-$(CONFIG_AXP803_POWER) += axp_spl.o
endif
obj-$(CONFIG_EXYNOS_TMU) += exynos-tmu.o
obj-$(CONFIG_SY8106A_POWER) += sy8106a.o

17
drivers/power/axp_spl.c
View File

@@ -36,6 +36,23 @@ static const struct axp_reg_desc_spl axp_spl_dcdc_regulators[] = {
#define AXP_SHUTDOWN_REG 0x27
#define AXP_SHUTDOWN_MASK BIT(0)
#elif defined(CONFIG_AXP803_POWER) /* AXP803 */
static const struct axp_reg_desc_spl axp_spl_dcdc_regulators[] = {
{ 0x10, BIT(0), 0x20, 0x1f, 1600, 3400, 100, NA },
{ 0x10, BIT(1), 0x21, 0x7f, 500, 1300, 10, 70 },
{ 0x10, BIT(2), 0x22, 0x7f, 500, 1300, 10, 70 },
{ 0x10, BIT(3), 0x23, 0x7f, 500, 1300, 10, 70 },
{ 0x10, BIT(4), 0x24, 0x7f, 800, 1840, 10, 32 },
{ 0x10, BIT(5), 0x25, 0x7f, 600, 1520, 10, 50 },
};
#define AXP_CHIP_VERSION 0x3
#define AXP_CHIP_VERSION_MASK 0xcf
#define AXP_CHIP_ID 0x41
#define AXP_SHUTDOWN_REG 0x32
#define AXP_SHUTDOWN_MASK BIT(7)
#elif defined(CONFIG_AXP313_POWER) /* AXP313 */
static const struct axp_reg_desc_spl axp_spl_dcdc_regulators[] = {