mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-05 20:54:31 +00:00
5c7f10fda3
The A31 uses the AXP221 pmic for various voltages. Signed-off-by: Oliver Schinagl <oliver@schinagl.nl> Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Ian Campbell <ijc@hellion.org.uk> -- Changes in v2: -Rebase Changes in v3: -Add support for all dldo and aldo-s -Add Kconfig option to select building AXP221 and to select voltage of dldo and aldo-s Changes in v4: -Add axp221_setbits helper function -Use symbolic names for enabled bits in CTRL1 - CTRL3 registers
186 lines
3.5 KiB
C
186 lines
3.5 KiB
C
/*
|
|
* (C) Copyright 2013 Oliver Schinagl <oliver@schinagl.nl>
|
|
*
|
|
* SPDX-License-Identifier: GPL-2.0+
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <errno.h>
|
|
#include <asm/arch/p2wi.h>
|
|
#include <axp221.h>
|
|
|
|
static u8 axp221_mvolt_to_cfg(int mvolt, int min, int max, int div)
|
|
{
|
|
if (mvolt < min)
|
|
mvolt = min;
|
|
else if (mvolt > max)
|
|
mvolt = max;
|
|
|
|
return (mvolt - min) / div;
|
|
}
|
|
|
|
static int axp221_setbits(u8 reg, u8 bits)
|
|
{
|
|
int ret;
|
|
u8 val;
|
|
|
|
ret = p2wi_read(reg, &val);
|
|
if (ret)
|
|
return ret;
|
|
|
|
val |= bits;
|
|
return p2wi_write(reg, val);
|
|
}
|
|
|
|
int axp221_set_dcdc1(unsigned int mvolt)
|
|
{
|
|
int ret;
|
|
u8 cfg = axp221_mvolt_to_cfg(mvolt, 1600, 3400, 100);
|
|
|
|
ret = p2wi_write(AXP221_DCDC1_CTRL, cfg);
|
|
if (ret)
|
|
return ret;
|
|
|
|
return axp221_setbits(AXP221_OUTPUT_CTRL2,
|
|
AXP221_OUTPUT_CTRL2_DCDC1_EN);
|
|
}
|
|
|
|
int axp221_set_dcdc2(unsigned int mvolt)
|
|
{
|
|
u8 cfg = axp221_mvolt_to_cfg(mvolt, 600, 1540, 20);
|
|
|
|
return p2wi_write(AXP221_DCDC2_CTRL, cfg);
|
|
}
|
|
|
|
int axp221_set_dcdc3(unsigned int mvolt)
|
|
{
|
|
u8 cfg = axp221_mvolt_to_cfg(mvolt, 600, 1860, 20);
|
|
|
|
return p2wi_write(AXP221_DCDC3_CTRL, cfg);
|
|
}
|
|
|
|
int axp221_set_dcdc4(unsigned int mvolt)
|
|
{
|
|
u8 cfg = axp221_mvolt_to_cfg(mvolt, 600, 1540, 20);
|
|
|
|
return p2wi_write(AXP221_DCDC4_CTRL, cfg);
|
|
}
|
|
|
|
int axp221_set_dcdc5(unsigned int mvolt)
|
|
{
|
|
u8 cfg = axp221_mvolt_to_cfg(mvolt, 1000, 2550, 50);
|
|
|
|
return p2wi_write(AXP221_DCDC5_CTRL, cfg);
|
|
}
|
|
|
|
int axp221_set_dldo1(unsigned int mvolt)
|
|
{
|
|
int ret;
|
|
u8 cfg = axp221_mvolt_to_cfg(mvolt, 700, 3300, 100);
|
|
|
|
ret = p2wi_write(AXP221_DLDO1_CTRL, cfg);
|
|
if (ret)
|
|
return ret;
|
|
|
|
return axp221_setbits(AXP221_OUTPUT_CTRL2,
|
|
AXP221_OUTPUT_CTRL2_DLDO1_EN);
|
|
}
|
|
|
|
int axp221_set_dldo2(unsigned int mvolt)
|
|
{
|
|
int ret;
|
|
u8 cfg = axp221_mvolt_to_cfg(mvolt, 700, 3300, 100);
|
|
|
|
ret = p2wi_write(AXP221_DLDO2_CTRL, cfg);
|
|
if (ret)
|
|
return ret;
|
|
|
|
return axp221_setbits(AXP221_OUTPUT_CTRL2,
|
|
AXP221_OUTPUT_CTRL2_DLDO2_EN);
|
|
}
|
|
|
|
int axp221_set_dldo3(unsigned int mvolt)
|
|
{
|
|
int ret;
|
|
u8 cfg = axp221_mvolt_to_cfg(mvolt, 700, 3300, 100);
|
|
|
|
ret = p2wi_write(AXP221_DLDO3_CTRL, cfg);
|
|
if (ret)
|
|
return ret;
|
|
|
|
return axp221_setbits(AXP221_OUTPUT_CTRL2,
|
|
AXP221_OUTPUT_CTRL2_DLDO3_EN);
|
|
}
|
|
|
|
int axp221_set_dldo4(unsigned int mvolt)
|
|
{
|
|
int ret;
|
|
u8 cfg = axp221_mvolt_to_cfg(mvolt, 700, 3300, 100);
|
|
|
|
ret = p2wi_write(AXP221_DLDO4_CTRL, cfg);
|
|
if (ret)
|
|
return ret;
|
|
|
|
return axp221_setbits(AXP221_OUTPUT_CTRL2,
|
|
AXP221_OUTPUT_CTRL2_DLDO4_EN);
|
|
}
|
|
|
|
int axp221_set_aldo1(unsigned int mvolt)
|
|
{
|
|
int ret;
|
|
u8 cfg = axp221_mvolt_to_cfg(mvolt, 700, 3300, 100);
|
|
|
|
ret = p2wi_write(AXP221_ALDO1_CTRL, cfg);
|
|
if (ret)
|
|
return ret;
|
|
|
|
return axp221_setbits(AXP221_OUTPUT_CTRL1,
|
|
AXP221_OUTPUT_CTRL1_ALDO1_EN);
|
|
}
|
|
|
|
int axp221_set_aldo2(unsigned int mvolt)
|
|
{
|
|
int ret;
|
|
u8 cfg = axp221_mvolt_to_cfg(mvolt, 700, 3300, 100);
|
|
|
|
ret = p2wi_write(AXP221_ALDO2_CTRL, cfg);
|
|
if (ret)
|
|
return ret;
|
|
|
|
return axp221_setbits(AXP221_OUTPUT_CTRL1,
|
|
AXP221_OUTPUT_CTRL1_ALDO2_EN);
|
|
}
|
|
|
|
int axp221_set_aldo3(unsigned int mvolt)
|
|
{
|
|
int ret;
|
|
u8 cfg = axp221_mvolt_to_cfg(mvolt, 700, 3300, 100);
|
|
|
|
ret = p2wi_write(AXP221_ALDO3_CTRL, cfg);
|
|
if (ret)
|
|
return ret;
|
|
|
|
return axp221_setbits(AXP221_OUTPUT_CTRL3,
|
|
AXP221_OUTPUT_CTRL3_ALDO3_EN);
|
|
}
|
|
|
|
int axp221_init(void)
|
|
{
|
|
u8 axp_chip_id;
|
|
int ret;
|
|
|
|
p2wi_init();
|
|
ret = p2wi_change_to_p2wi_mode(AXP221_CHIP_ADDR, AXP221_CTRL_ADDR,
|
|
AXP221_INIT_DATA);
|
|
if (ret)
|
|
return ret;
|
|
|
|
ret = p2wi_read(AXP221_CHIP_ID, &axp_chip_id);
|
|
if (ret)
|
|
return ret;
|
|
|
|
if (!(axp_chip_id == 0x6 || axp_chip_id == 0x7 || axp_chip_id == 0x17))
|
|
return -ENODEV;
|
|
|
|
return 0;
|
|
}
|