Whitebox
/
u-boot
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

sunxi: axp221: Explicitly turn off unused voltages

Browse Source 
Explicitly turn off unused voltages, rather then leaving them as is. Likewise
explictly enabled the dcdc convertors, rather then assuming they are already
enabled at boot.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Ian Campbell <ijc@hellion.org.uk>
master
Hans de Goede 10 years ago
parent 1262a85fe3
commit 50e0d5e60b
4 changed files with 111 additions and 25 deletions
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
Show Stats Download Patch File Download Diff File
  1. 10
      board/sunxi/board.c
  2. 16
      drivers/power/Kconfig
  3. 102
      drivers/power/axp221.c
  4. 8
      include/axp221.h

10
board/sunxi/board.c
Unescape View File

@ -180,22 +180,12 @@ void sunxi_board_init(void)
power_failed |= axp221_set_dcdc3(1200);
power_failed |= axp221_set_dcdc4(1200);
power_failed |= axp221_set_dcdc5(1500);
#if CONFIG_AXP221_DLDO1_VOLT != -1
power_failed |= axp221_set_dldo1(CONFIG_AXP221_DLDO1_VOLT);
#endif
#if CONFIG_AXP221_DLDO4_VOLT != -1
power_failed |= axp221_set_dldo4(CONFIG_AXP221_DLDO4_VOLT);
#endif
#if CONFIG_AXP221_ALDO1_VOLT != -1
power_failed |= axp221_set_aldo1(CONFIG_AXP221_ALDO1_VOLT);
#endif
#if CONFIG_AXP221_ALDO2_VOLT != -1
power_failed |= axp221_set_aldo2(CONFIG_AXP221_ALDO2_VOLT);
#endif
#if CONFIG_AXP221_ALDO3_VOLT != -1
power_failed |= axp221_set_aldo3(CONFIG_AXP221_ALDO3_VOLT);
#endif
#endif
printf("DRAM:");
ramsize = sunxi_dram_init();

16
drivers/power/Kconfig
Unescape View File

@ -19,9 +19,9 @@ config AXP221_DCDC1_VOLT
config AXP221_DLDO1_VOLT
int "axp221 dldo1 voltage"
depends on AXP221_POWER
default -1
default 0
---help---
Set the voltage (mV) to program the axp221 dldo1 at, set to -1 to
Set the voltage (mV) to program the axp221 dldo1 at, set to 0 to
disable dldo1. On sun6i (A31) boards with ethernet this is often used
to power the ethernet phy. On sun8i (A23) boards this is often used to
power the wifi.
@ -29,17 +29,17 @@ config AXP221_DLDO1_VOLT
config AXP221_DLDO4_VOLT
int "axp221 dldo4 voltage"
depends on AXP221_POWER
default -1
default 0
---help---
Set the voltage (mV) to program the axp221 dldo4 at, set to -1 to
Set the voltage (mV) to program the axp221 dldo4 at, set to 0 to
disable dldo4.
config AXP221_ALDO1_VOLT
int "axp221 aldo1 voltage"
depends on AXP221_POWER
default -1
default 0
---help---
Set the voltage (mV) to program the axp221 aldo1 at, set to -1 to
Set the voltage (mV) to program the axp221 aldo1 at, set to 0 to
disable aldo1. On sun6i (A31) boards which have a wifi module this is
often used to power the wifi module.
@ -49,7 +49,7 @@ config AXP221_ALDO2_VOLT
default 1800 if MACH_SUN6I
default 2500 if MACH_SUN8I
---help---
Set the voltage (mV) to program the axp221 aldo2 at, set to -1 to
Set the voltage (mV) to program the axp221 aldo2 at, set to 0 to
disable aldo2. On sun6i (A31) boards this is typically connected to
VCC-PM, which powers the port M gpios, and should be set to 1.8V.
On sun8i (A23) this is typically connected to VDD-DLL and must be
@ -60,6 +60,6 @@ config AXP221_ALDO3_VOLT
depends on AXP221_POWER
default 3000
---help---
Set the voltage (mV) to program the axp221 aldo3 at, set to -1 to
Set the voltage (mV) to program the axp221 aldo3 at, set to 0 to
disable aldo3. This is typically connected to VCC-PLL and AVCC and
must be set to 3V.

102
drivers/power/axp221.c
Unescape View File

@ -80,45 +80,107 @@ static int axp221_setbits(u8 reg, u8 bits)
return pmic_bus_write(reg, val);
}
static int axp221_clrbits(u8 reg, u8 bits)
{
int ret;
u8 val;
ret = pmic_bus_read(reg, &val);
if (ret)
return ret;
val &= ~bits;
return pmic_bus_write(reg, val);
}
int axp221_set_dcdc1(unsigned int mvolt)
{
int ret;
u8 cfg = axp221_mvolt_to_cfg(mvolt, 1600, 3400, 100);
if (mvolt == 0)
return axp221_clrbits(AXP221_OUTPUT_CTRL1,
AXP221_OUTPUT_CTRL1_DCDC1_EN);
ret = pmic_bus_write(AXP221_DCDC1_CTRL, cfg);
if (ret)
return ret;
return axp221_setbits(AXP221_OUTPUT_CTRL2,
AXP221_OUTPUT_CTRL2_DCDC1_EN);
ret = axp221_setbits(AXP221_OUTPUT_CTRL2,
AXP221_OUTPUT_CTRL2_DCDC1SW_EN);
if (ret)
return ret;
return axp221_setbits(AXP221_OUTPUT_CTRL1,
AXP221_OUTPUT_CTRL1_DCDC1_EN);
}
int axp221_set_dcdc2(unsigned int mvolt)
{
int ret;
u8 cfg = axp221_mvolt_to_cfg(mvolt, 600, 1540, 20);
return pmic_bus_write(AXP221_DCDC2_CTRL, cfg);
if (mvolt == 0)
return axp221_clrbits(AXP221_OUTPUT_CTRL1,
AXP221_OUTPUT_CTRL1_DCDC2_EN);
ret = pmic_bus_write(AXP221_DCDC2_CTRL, cfg);
if (ret)
return ret;
return axp221_setbits(AXP221_OUTPUT_CTRL1,
AXP221_OUTPUT_CTRL1_DCDC2_EN);
}
int axp221_set_dcdc3(unsigned int mvolt)
{
int ret;
u8 cfg = axp221_mvolt_to_cfg(mvolt, 600, 1860, 20);
return pmic_bus_write(AXP221_DCDC3_CTRL, cfg);
if (mvolt == 0)
return axp221_clrbits(AXP221_OUTPUT_CTRL1,
AXP221_OUTPUT_CTRL1_DCDC3_EN);
ret = pmic_bus_write(AXP221_DCDC3_CTRL, cfg);
if (ret)
return ret;
return axp221_setbits(AXP221_OUTPUT_CTRL1,
AXP221_OUTPUT_CTRL1_DCDC3_EN);
}
int axp221_set_dcdc4(unsigned int mvolt)
{
int ret;
u8 cfg = axp221_mvolt_to_cfg(mvolt, 600, 1540, 20);
return pmic_bus_write(AXP221_DCDC4_CTRL, cfg);
if (mvolt == 0)
return axp221_clrbits(AXP221_OUTPUT_CTRL1,
AXP221_OUTPUT_CTRL1_DCDC4_EN);
ret = pmic_bus_write(AXP221_DCDC4_CTRL, cfg);
if (ret)
return ret;
return axp221_setbits(AXP221_OUTPUT_CTRL1,
AXP221_OUTPUT_CTRL1_DCDC4_EN);
}
int axp221_set_dcdc5(unsigned int mvolt)
{
int ret;
u8 cfg = axp221_mvolt_to_cfg(mvolt, 1000, 2550, 50);
return pmic_bus_write(AXP221_DCDC5_CTRL, cfg);
if (mvolt == 0)
return axp221_clrbits(AXP221_OUTPUT_CTRL1,
AXP221_OUTPUT_CTRL1_DCDC5_EN);
ret = pmic_bus_write(AXP221_DCDC5_CTRL, cfg);
if (ret)
return ret;
return axp221_setbits(AXP221_OUTPUT_CTRL1,
AXP221_OUTPUT_CTRL1_DCDC5_EN);
}
int axp221_set_dldo1(unsigned int mvolt)
@ -126,6 +188,10 @@ int axp221_set_dldo1(unsigned int mvolt)
int ret;
u8 cfg = axp221_mvolt_to_cfg(mvolt, 700, 3300, 100);
if (mvolt == 0)
return axp221_clrbits(AXP221_OUTPUT_CTRL2,
AXP221_OUTPUT_CTRL2_DLDO1_EN);
ret = pmic_bus_write(AXP221_DLDO1_CTRL, cfg);
if (ret)
return ret;
@ -139,6 +205,10 @@ int axp221_set_dldo2(unsigned int mvolt)
int ret;
u8 cfg = axp221_mvolt_to_cfg(mvolt, 700, 3300, 100);
if (mvolt == 0)
return axp221_clrbits(AXP221_OUTPUT_CTRL2,
AXP221_OUTPUT_CTRL2_DLDO2_EN);
ret = pmic_bus_write(AXP221_DLDO2_CTRL, cfg);
if (ret)
return ret;
@ -152,6 +222,10 @@ int axp221_set_dldo3(unsigned int mvolt)
int ret;
u8 cfg = axp221_mvolt_to_cfg(mvolt, 700, 3300, 100);
if (mvolt == 0)
return axp221_clrbits(AXP221_OUTPUT_CTRL2,
AXP221_OUTPUT_CTRL2_DLDO3_EN);
ret = pmic_bus_write(AXP221_DLDO3_CTRL, cfg);
if (ret)
return ret;
@ -165,6 +239,10 @@ int axp221_set_dldo4(unsigned int mvolt)
int ret;
u8 cfg = axp221_mvolt_to_cfg(mvolt, 700, 3300, 100);
if (mvolt == 0)
return axp221_clrbits(AXP221_OUTPUT_CTRL2,
AXP221_OUTPUT_CTRL2_DLDO4_EN);
ret = pmic_bus_write(AXP221_DLDO4_CTRL, cfg);
if (ret)
return ret;
@ -178,6 +256,10 @@ int axp221_set_aldo1(unsigned int mvolt)
int ret;
u8 cfg = axp221_mvolt_to_cfg(mvolt, 700, 3300, 100);
if (mvolt == 0)
return axp221_clrbits(AXP221_OUTPUT_CTRL1,
AXP221_OUTPUT_CTRL1_ALDO1_EN);
ret = pmic_bus_write(AXP221_ALDO1_CTRL, cfg);
if (ret)
return ret;
@ -191,6 +273,10 @@ int axp221_set_aldo2(unsigned int mvolt)
int ret;
u8 cfg = axp221_mvolt_to_cfg(mvolt, 700, 3300, 100);
if (mvolt == 0)
return axp221_clrbits(AXP221_OUTPUT_CTRL1,
AXP221_OUTPUT_CTRL1_ALDO2_EN);
ret = pmic_bus_write(AXP221_ALDO2_CTRL, cfg);
if (ret)
return ret;
@ -204,6 +290,10 @@ int axp221_set_aldo3(unsigned int mvolt)
int ret;
u8 cfg = axp221_mvolt_to_cfg(mvolt, 700, 3300, 100);
if (mvolt == 0)
return axp221_clrbits(AXP221_OUTPUT_CTRL3,
AXP221_OUTPUT_CTRL3_ALDO3_EN);
ret = pmic_bus_write(AXP221_ALDO3_CTRL, cfg);
if (ret)
return ret;

8
include/axp221.h
Unescape View File

@ -17,6 +17,12 @@
/* Page 0 addresses */
#define AXP221_CHIP_ID 0x03
#define AXP221_OUTPUT_CTRL1 0x10
#define AXP221_OUTPUT_CTRL1_DCDC0_EN (1 << 0)
#define AXP221_OUTPUT_CTRL1_DCDC1_EN (1 << 1)
#define AXP221_OUTPUT_CTRL1_DCDC2_EN (1 << 2)
#define AXP221_OUTPUT_CTRL1_DCDC3_EN (1 << 3)
#define AXP221_OUTPUT_CTRL1_DCDC4_EN (1 << 4)
#define AXP221_OUTPUT_CTRL1_DCDC5_EN (1 << 5)
#define AXP221_OUTPUT_CTRL1_ALDO1_EN (1 << 6)
#define AXP221_OUTPUT_CTRL1_ALDO2_EN (1 << 7)
#define AXP221_OUTPUT_CTRL2 0x12
@ -24,7 +30,7 @@
#define AXP221_OUTPUT_CTRL2_DLDO2_EN (1 << 4)
#define AXP221_OUTPUT_CTRL2_DLDO3_EN (1 << 5)
#define AXP221_OUTPUT_CTRL2_DLDO4_EN (1 << 6)
#define AXP221_OUTPUT_CTRL2_DCDC1_EN (1 << 7)
#define AXP221_OUTPUT_CTRL2_DCDC1SW_EN (1 << 7)
#define AXP221_OUTPUT_CTRL3 0x13
#define AXP221_OUTPUT_CTRL3_ALDO3_EN (1 << 7)
#define AXP221_DLDO1_CTRL 0x15

Write Preview
Loading…
Cancel
Save