+// SPDX-License-Identifier: GPL-2.0+
/*
- * (C) Copyright 2013 Oliver Schinagl <oliver@schinagl.nl>
+ * AXP221 and AXP223 driver
+ *
+ * IMPORTANT when making changes to this file check that the registers
+ * used are the same for the axp221 and axp223.
*
- * SPDX-License-Identifier: GPL-2.0+
+ * (C) Copyright 2014 Hans de Goede <hdegoede@redhat.com>
+ * (C) Copyright 2013 Oliver Schinagl <oliver@schinagl.nl>
*/
#include <common.h>
+#include <command.h>
#include <errno.h>
-#include <asm/arch/p2wi.h>
-#include <axp221.h>
+#include <asm/arch/pmic_bus.h>
+#include <axp_pmic.h>
static u8 axp221_mvolt_to_cfg(int mvolt, int min, int max, int div)
{
return (mvolt - min) / div;
}
-static int axp221_setbits(u8 reg, u8 bits)
+int axp_set_dcdc1(unsigned int mvolt)
{
int ret;
- u8 val;
+ u8 cfg = axp221_mvolt_to_cfg(mvolt, 1600, 3400, 100);
+
+ if (mvolt == 0)
+ return pmic_bus_clrbits(AXP221_OUTPUT_CTRL1,
+ AXP221_OUTPUT_CTRL1_DCDC1_EN);
+
+ ret = pmic_bus_write(AXP221_DCDC1_CTRL, cfg);
+ if (ret)
+ return ret;
- ret = p2wi_read(reg, &val);
+ ret = pmic_bus_setbits(AXP221_OUTPUT_CTRL2,
+ AXP221_OUTPUT_CTRL2_DCDC1SW_EN);
if (ret)
return ret;
- val |= bits;
- return p2wi_write(reg, val);
+ return pmic_bus_setbits(AXP221_OUTPUT_CTRL1,
+ AXP221_OUTPUT_CTRL1_DCDC1_EN);
}
-int axp221_set_dcdc1(unsigned int mvolt)
+int axp_set_dcdc2(unsigned int mvolt)
{
int ret;
- u8 cfg = axp221_mvolt_to_cfg(mvolt, 1600, 3400, 100);
+ u8 cfg = axp221_mvolt_to_cfg(mvolt, 600, 1540, 20);
- ret = p2wi_write(AXP221_DCDC1_CTRL, cfg);
+ if (mvolt == 0)
+ return pmic_bus_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_CTRL2,
- AXP221_OUTPUT_CTRL2_DCDC1_EN);
+ return pmic_bus_setbits(AXP221_OUTPUT_CTRL1,
+ AXP221_OUTPUT_CTRL1_DCDC2_EN);
}
-int axp221_set_dcdc2(unsigned int mvolt)
+int axp_set_dcdc3(unsigned int mvolt)
{
- u8 cfg = axp221_mvolt_to_cfg(mvolt, 600, 1540, 20);
+ int ret;
+ u8 cfg = axp221_mvolt_to_cfg(mvolt, 600, 1860, 20);
- return p2wi_write(AXP221_DCDC2_CTRL, cfg);
-}
+ if (mvolt == 0)
+ return pmic_bus_clrbits(AXP221_OUTPUT_CTRL1,
+ AXP221_OUTPUT_CTRL1_DCDC3_EN);
-int axp221_set_dcdc3(unsigned int mvolt)
-{
- u8 cfg = axp221_mvolt_to_cfg(mvolt, 600, 1860, 20);
+ ret = pmic_bus_write(AXP221_DCDC3_CTRL, cfg);
+ if (ret)
+ return ret;
- return p2wi_write(AXP221_DCDC3_CTRL, cfg);
+ return pmic_bus_setbits(AXP221_OUTPUT_CTRL1,
+ AXP221_OUTPUT_CTRL1_DCDC3_EN);
}
-int axp221_set_dcdc4(unsigned int mvolt)
+int axp_set_dcdc4(unsigned int mvolt)
{
+ int ret;
u8 cfg = axp221_mvolt_to_cfg(mvolt, 600, 1540, 20);
- return p2wi_write(AXP221_DCDC4_CTRL, cfg);
-}
+ if (mvolt == 0)
+ return pmic_bus_clrbits(AXP221_OUTPUT_CTRL1,
+ AXP221_OUTPUT_CTRL1_DCDC4_EN);
-int axp221_set_dcdc5(unsigned int mvolt)
-{
- u8 cfg = axp221_mvolt_to_cfg(mvolt, 1000, 2550, 50);
+ ret = pmic_bus_write(AXP221_DCDC4_CTRL, cfg);
+ if (ret)
+ return ret;
- return p2wi_write(AXP221_DCDC5_CTRL, cfg);
+ return pmic_bus_setbits(AXP221_OUTPUT_CTRL1,
+ AXP221_OUTPUT_CTRL1_DCDC4_EN);
}
-int axp221_set_dldo1(unsigned int mvolt)
+int axp_set_dcdc5(unsigned int mvolt)
{
int ret;
- u8 cfg = axp221_mvolt_to_cfg(mvolt, 700, 3300, 100);
+ u8 cfg = axp221_mvolt_to_cfg(mvolt, 1000, 2550, 50);
+
+ if (mvolt == 0)
+ return pmic_bus_clrbits(AXP221_OUTPUT_CTRL1,
+ AXP221_OUTPUT_CTRL1_DCDC5_EN);
- ret = p2wi_write(AXP221_DLDO1_CTRL, cfg);
+ ret = pmic_bus_write(AXP221_DCDC5_CTRL, cfg);
if (ret)
return ret;
- return axp221_setbits(AXP221_OUTPUT_CTRL2,
- AXP221_OUTPUT_CTRL2_DLDO1_EN);
+ return pmic_bus_setbits(AXP221_OUTPUT_CTRL1,
+ AXP221_OUTPUT_CTRL1_DCDC5_EN);
}
-int axp221_set_dldo2(unsigned int mvolt)
+int axp_set_aldo1(unsigned int mvolt)
{
int ret;
u8 cfg = axp221_mvolt_to_cfg(mvolt, 700, 3300, 100);
- ret = p2wi_write(AXP221_DLDO2_CTRL, cfg);
+ if (mvolt == 0)
+ return pmic_bus_clrbits(AXP221_OUTPUT_CTRL1,
+ AXP221_OUTPUT_CTRL1_ALDO1_EN);
+
+ ret = pmic_bus_write(AXP221_ALDO1_CTRL, cfg);
if (ret)
return ret;
- return axp221_setbits(AXP221_OUTPUT_CTRL2,
- AXP221_OUTPUT_CTRL2_DLDO2_EN);
+ return pmic_bus_setbits(AXP221_OUTPUT_CTRL1,
+ AXP221_OUTPUT_CTRL1_ALDO1_EN);
}
-int axp221_set_dldo3(unsigned int mvolt)
+int axp_set_aldo2(unsigned int mvolt)
{
int ret;
u8 cfg = axp221_mvolt_to_cfg(mvolt, 700, 3300, 100);
- ret = p2wi_write(AXP221_DLDO3_CTRL, cfg);
+ if (mvolt == 0)
+ return pmic_bus_clrbits(AXP221_OUTPUT_CTRL1,
+ AXP221_OUTPUT_CTRL1_ALDO2_EN);
+
+ ret = pmic_bus_write(AXP221_ALDO2_CTRL, cfg);
if (ret)
return ret;
- return axp221_setbits(AXP221_OUTPUT_CTRL2,
- AXP221_OUTPUT_CTRL2_DLDO3_EN);
+ return pmic_bus_setbits(AXP221_OUTPUT_CTRL1,
+ AXP221_OUTPUT_CTRL1_ALDO2_EN);
}
-int axp221_set_dldo4(unsigned int mvolt)
+int axp_set_aldo3(unsigned int mvolt)
{
int ret;
u8 cfg = axp221_mvolt_to_cfg(mvolt, 700, 3300, 100);
- ret = p2wi_write(AXP221_DLDO4_CTRL, cfg);
+ if (mvolt == 0)
+ return pmic_bus_clrbits(AXP221_OUTPUT_CTRL3,
+ AXP221_OUTPUT_CTRL3_ALDO3_EN);
+
+ ret = pmic_bus_write(AXP221_ALDO3_CTRL, cfg);
if (ret)
return ret;
- return axp221_setbits(AXP221_OUTPUT_CTRL2,
- AXP221_OUTPUT_CTRL2_DLDO4_EN);
+ return pmic_bus_setbits(AXP221_OUTPUT_CTRL3,
+ AXP221_OUTPUT_CTRL3_ALDO3_EN);
}
-int axp221_set_aldo1(unsigned int mvolt)
+int axp_set_dldo(int dldo_num, unsigned int mvolt)
{
- int ret;
u8 cfg = axp221_mvolt_to_cfg(mvolt, 700, 3300, 100);
+ int ret;
+
+ if (dldo_num < 1 || dldo_num > 4)
+ return -EINVAL;
- ret = p2wi_write(AXP221_ALDO1_CTRL, cfg);
+ if (mvolt == 0)
+ return pmic_bus_clrbits(AXP221_OUTPUT_CTRL2,
+ AXP221_OUTPUT_CTRL2_DLDO1_EN << (dldo_num - 1));
+
+ ret = pmic_bus_write(AXP221_DLDO1_CTRL + (dldo_num - 1), cfg);
if (ret)
return ret;
- return axp221_setbits(AXP221_OUTPUT_CTRL1,
- AXP221_OUTPUT_CTRL1_ALDO1_EN);
+ return pmic_bus_setbits(AXP221_OUTPUT_CTRL2,
+ AXP221_OUTPUT_CTRL2_DLDO1_EN << (dldo_num - 1));
}
-int axp221_set_aldo2(unsigned int mvolt)
+int axp_set_eldo(int eldo_num, unsigned int mvolt)
{
int ret;
u8 cfg = axp221_mvolt_to_cfg(mvolt, 700, 3300, 100);
- ret = p2wi_write(AXP221_ALDO2_CTRL, cfg);
+ if (eldo_num < 1 || eldo_num > 3)
+ return -EINVAL;
+
+ if (mvolt == 0)
+ return pmic_bus_clrbits(AXP221_OUTPUT_CTRL2,
+ AXP221_OUTPUT_CTRL2_ELDO1_EN << (eldo_num - 1));
+
+ ret = pmic_bus_write(AXP221_ELDO1_CTRL + (eldo_num - 1), cfg);
if (ret)
return ret;
- return axp221_setbits(AXP221_OUTPUT_CTRL1,
- AXP221_OUTPUT_CTRL1_ALDO2_EN);
+ return pmic_bus_setbits(AXP221_OUTPUT_CTRL2,
+ AXP221_OUTPUT_CTRL2_ELDO1_EN << (eldo_num - 1));
}
-int axp221_set_aldo3(unsigned int mvolt)
+int axp_init(void)
{
+ u8 axp_chip_id;
int ret;
- u8 cfg = axp221_mvolt_to_cfg(mvolt, 700, 3300, 100);
- ret = p2wi_write(AXP221_ALDO3_CTRL, cfg);
+ ret = pmic_bus_init();
+ if (ret)
+ return ret;
+
+ ret = pmic_bus_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;
+
+ /*
+ * Turn off LDOIO regulators / tri-state GPIO pins, when rebooting
+ * from android these are sometimes on.
+ */
+ ret = pmic_bus_write(AXP_GPIO0_CTRL, AXP_GPIO_CTRL_INPUT);
if (ret)
return ret;
- return axp221_setbits(AXP221_OUTPUT_CTRL3,
- AXP221_OUTPUT_CTRL3_ALDO3_EN);
+ ret = pmic_bus_write(AXP_GPIO1_CTRL, AXP_GPIO_CTRL_INPUT);
+ if (ret)
+ return ret;
+
+ return 0;
}
-int axp221_init(void)
+int axp_get_sid(unsigned int *sid)
{
- u8 axp_chip_id;
- int ret;
+ u8 *dest = (u8 *)sid;
+ int i, ret;
- p2wi_init();
- ret = p2wi_change_to_p2wi_mode(AXP221_CHIP_ADDR, AXP221_CTRL_ADDR,
- AXP221_INIT_DATA);
+ ret = pmic_bus_init();
if (ret)
return ret;
- ret = p2wi_read(AXP221_CHIP_ID, &axp_chip_id);
+ ret = pmic_bus_write(AXP221_PAGE, 1);
if (ret)
return ret;
- if (!(axp_chip_id == 0x6 || axp_chip_id == 0x7 || axp_chip_id == 0x17))
- return -ENODEV;
+ for (i = 0; i < 16; i++) {
+ ret = pmic_bus_read(AXP221_SID + i, &dest[i]);
+ if (ret)
+ return ret;
+ }
+
+ pmic_bus_write(AXP221_PAGE, 0);
+
+ for (i = 0; i < 4; i++)
+ sid[i] = be32_to_cpu(sid[i]);
+
+ return 0;
+}
+
+int do_poweroff(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+{
+ pmic_bus_write(AXP221_SHUTDOWN, AXP221_SHUTDOWN_POWEROFF);
+
+ /* infinite loop during shutdown */
+ while (1) {}
+ /* not reached */
return 0;
}
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