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-rw-r--r--roms/u-boot/drivers/power/axp818.c268
1 files changed, 268 insertions, 0 deletions
diff --git a/roms/u-boot/drivers/power/axp818.c b/roms/u-boot/drivers/power/axp818.c
new file mode 100644
index 000000000..0531707c8
--- /dev/null
+++ b/roms/u-boot/drivers/power/axp818.c
@@ -0,0 +1,268 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * AXP818 driver based on AXP221 driver
+ *
+ *
+ * (C) Copyright 2015 Vishnu Patekar <vishnuptekar0510@gmail.com>
+ *
+ * Based on axp221.c
+ * (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/gpio.h>
+#include <asm/arch/pmic_bus.h>
+#include <axp_pmic.h>
+
+static u8 axp818_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;
+}
+
+int axp_set_dcdc1(unsigned int mvolt)
+{
+ int ret;
+ u8 cfg = axp818_mvolt_to_cfg(mvolt, 1600, 3400, 100);
+
+ if (mvolt == 0)
+ return pmic_bus_clrbits(AXP818_OUTPUT_CTRL1,
+ AXP818_OUTPUT_CTRL1_DCDC1_EN);
+
+ ret = pmic_bus_write(AXP818_DCDC1_CTRL, cfg);
+ if (ret)
+ return ret;
+
+ return pmic_bus_setbits(AXP818_OUTPUT_CTRL1,
+ AXP818_OUTPUT_CTRL1_DCDC1_EN);
+}
+
+int axp_set_dcdc2(unsigned int mvolt)
+{
+ int ret;
+ u8 cfg;
+
+ if (mvolt >= 1220)
+ cfg = 70 + axp818_mvolt_to_cfg(mvolt, 1220, 1300, 20);
+ else
+ cfg = axp818_mvolt_to_cfg(mvolt, 500, 1200, 10);
+
+ if (mvolt == 0)
+ return pmic_bus_clrbits(AXP818_OUTPUT_CTRL1,
+ AXP818_OUTPUT_CTRL1_DCDC2_EN);
+
+ ret = pmic_bus_write(AXP818_DCDC2_CTRL, cfg);
+ if (ret)
+ return ret;
+
+ return pmic_bus_setbits(AXP818_OUTPUT_CTRL1,
+ AXP818_OUTPUT_CTRL1_DCDC2_EN);
+}
+
+int axp_set_dcdc3(unsigned int mvolt)
+{
+ int ret;
+ u8 cfg;
+
+ if (mvolt >= 1220)
+ cfg = 70 + axp818_mvolt_to_cfg(mvolt, 1220, 1300, 20);
+ else
+ cfg = axp818_mvolt_to_cfg(mvolt, 500, 1200, 10);
+
+ if (mvolt == 0)
+ return pmic_bus_clrbits(AXP818_OUTPUT_CTRL1,
+ AXP818_OUTPUT_CTRL1_DCDC3_EN);
+
+ ret = pmic_bus_write(AXP818_DCDC3_CTRL, cfg);
+ if (ret)
+ return ret;
+
+ return pmic_bus_setbits(AXP818_OUTPUT_CTRL1,
+ AXP818_OUTPUT_CTRL1_DCDC3_EN);
+}
+
+int axp_set_dcdc5(unsigned int mvolt)
+{
+ int ret;
+ u8 cfg;
+
+ if (mvolt >= 1140)
+ cfg = 32 + axp818_mvolt_to_cfg(mvolt, 1140, 1840, 20);
+ else
+ cfg = axp818_mvolt_to_cfg(mvolt, 800, 1120, 10);
+
+ if (mvolt == 0)
+ return pmic_bus_clrbits(AXP818_OUTPUT_CTRL1,
+ AXP818_OUTPUT_CTRL1_DCDC5_EN);
+
+ ret = pmic_bus_write(AXP818_DCDC5_CTRL, cfg);
+ if (ret)
+ return ret;
+
+ return pmic_bus_setbits(AXP818_OUTPUT_CTRL1,
+ AXP818_OUTPUT_CTRL1_DCDC5_EN);
+}
+
+int axp_set_aldo(int aldo_num, unsigned int mvolt)
+{
+ int ret;
+ u8 cfg;
+
+ if (aldo_num < 1 || aldo_num > 3)
+ return -EINVAL;
+
+ if (mvolt == 0)
+ return pmic_bus_clrbits(AXP818_OUTPUT_CTRL3,
+ AXP818_OUTPUT_CTRL3_ALDO1_EN << (aldo_num - 1));
+
+ cfg = axp818_mvolt_to_cfg(mvolt, 700, 3300, 100);
+ ret = pmic_bus_write(AXP818_ALDO1_CTRL + (aldo_num - 1), cfg);
+ if (ret)
+ return ret;
+
+ return pmic_bus_setbits(AXP818_OUTPUT_CTRL3,
+ AXP818_OUTPUT_CTRL3_ALDO1_EN << (aldo_num - 1));
+}
+
+/* TODO: re-work other AXP drivers to consolidate ALDO functions. */
+int axp_set_aldo1(unsigned int mvolt)
+{
+ return axp_set_aldo(1, mvolt);
+}
+
+int axp_set_aldo2(unsigned int mvolt)
+{
+ return axp_set_aldo(2, mvolt);
+}
+
+int axp_set_aldo3(unsigned int mvolt)
+{
+ return axp_set_aldo(3, mvolt);
+}
+
+int axp_set_dldo(int dldo_num, unsigned int mvolt)
+{
+ int ret;
+ u8 cfg;
+
+ if (dldo_num < 1 || dldo_num > 4)
+ return -EINVAL;
+
+ if (mvolt == 0)
+ return pmic_bus_clrbits(AXP818_OUTPUT_CTRL2,
+ AXP818_OUTPUT_CTRL2_DLDO1_EN << (dldo_num - 1));
+
+ cfg = axp818_mvolt_to_cfg(mvolt, 700, 3300, 100);
+ if (dldo_num == 2 && mvolt > 3300)
+ cfg += 1 + axp818_mvolt_to_cfg(mvolt, 3400, 4200, 200);
+ ret = pmic_bus_write(AXP818_DLDO1_CTRL + (dldo_num - 1), cfg);
+ if (ret)
+ return ret;
+
+ return pmic_bus_setbits(AXP818_OUTPUT_CTRL2,
+ AXP818_OUTPUT_CTRL2_DLDO1_EN << (dldo_num - 1));
+}
+
+int axp_set_eldo(int eldo_num, unsigned int mvolt)
+{
+ int ret;
+ u8 cfg;
+
+ if (eldo_num < 1 || eldo_num > 3)
+ return -EINVAL;
+
+ if (mvolt == 0)
+ return pmic_bus_clrbits(AXP818_OUTPUT_CTRL2,
+ AXP818_OUTPUT_CTRL2_ELDO1_EN << (eldo_num - 1));
+
+ cfg = axp818_mvolt_to_cfg(mvolt, 700, 1900, 50);
+ ret = pmic_bus_write(AXP818_ELDO1_CTRL + (eldo_num - 1), cfg);
+ if (ret)
+ return ret;
+
+ return pmic_bus_setbits(AXP818_OUTPUT_CTRL2,
+ AXP818_OUTPUT_CTRL2_ELDO1_EN << (eldo_num - 1));
+}
+
+int axp_set_fldo(int fldo_num, unsigned int mvolt)
+{
+ int ret;
+ u8 cfg;
+
+ if (fldo_num < 1 || fldo_num > 3)
+ return -EINVAL;
+
+ if (mvolt == 0)
+ return pmic_bus_clrbits(AXP818_OUTPUT_CTRL3,
+ AXP818_OUTPUT_CTRL3_FLDO1_EN << (fldo_num - 1));
+
+ if (fldo_num < 3) {
+ cfg = axp818_mvolt_to_cfg(mvolt, 700, 1450, 50);
+ ret = pmic_bus_write(AXP818_FLDO1_CTRL + (fldo_num - 1), cfg);
+ } else {
+ /*
+ * Special case for FLDO3, which is DCDC5 / 2 or FLDOIN / 2
+ * Since FLDOIN is unknown, test against DCDC5.
+ */
+ if (mvolt * 2 == CONFIG_AXP_DCDC5_VOLT)
+ ret = pmic_bus_clrbits(AXP818_FLDO2_3_CTRL,
+ AXP818_FLDO2_3_CTRL_FLDO3_VOL);
+ else
+ ret = pmic_bus_setbits(AXP818_FLDO2_3_CTRL,
+ AXP818_FLDO2_3_CTRL_FLDO3_VOL);
+ }
+ if (ret)
+ return ret;
+
+ return pmic_bus_setbits(AXP818_OUTPUT_CTRL3,
+ AXP818_OUTPUT_CTRL3_FLDO1_EN << (fldo_num - 1));
+}
+
+int axp_set_sw(bool on)
+{
+ if (on)
+ return pmic_bus_setbits(AXP818_OUTPUT_CTRL2,
+ AXP818_OUTPUT_CTRL2_SW_EN);
+
+ return pmic_bus_clrbits(AXP818_OUTPUT_CTRL2,
+ AXP818_OUTPUT_CTRL2_SW_EN);
+}
+
+int axp_init(void)
+{
+ u8 axp_chip_id;
+ int ret;
+
+ ret = pmic_bus_init();
+ if (ret)
+ return ret;
+
+ ret = pmic_bus_read(AXP818_CHIP_ID, &axp_chip_id);
+ if (ret)
+ return ret;
+
+ if (!(axp_chip_id == 0x51))
+ return -ENODEV;
+ else
+ return ret;
+
+ return 0;
+}
+
+int do_poweroff(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
+{
+ pmic_bus_write(AXP818_SHUTDOWN, AXP818_SHUTDOWN_POWEROFF);
+
+ /* infinite loop during shutdown */
+ while (1) {}
+
+ /* not reached */
+ return 0;
+}