From: Tero Kristo t-kristo@ti.com

Adaptive Voltage Scaling is a technology used in TI SoCs to optimize the operating voltage based on characterization data written to efuse during production. Add a driver to support this feature for K3 line of SoCs, initially for AM65x.

Signed-off-by: Tero Kristo t-kristo@ti.com Signed-off-by: Keerthy j-keerthy@ti.com ---

Changes in v3:

* No change

Changes in v2:

* Moved under drivers/misc.

drivers/misc/Kconfig | 9 ++ drivers/misc/Makefile | 1 + drivers/misc/k3_avs.c | 366 ++++++++++++++++++++++++++++++++++++++++++ include/k3-avs.h | 28 ++++ 4 files changed, 404 insertions(+) create mode 100644 drivers/misc/k3_avs.c create mode 100644 include/k3-avs.h

diff --git a/drivers/misc/Kconfig b/drivers/misc/Kconfig index ba50893b43..f6147238a4 100644 --- a/drivers/misc/Kconfig +++ b/drivers/misc/Kconfig @@ -412,4 +412,13 @@ config IHS_FPGA by the devices. This driver supports both CON and CPU variants of the devices, depending on the device tree entry.

+config K3_AVS0 + depends on ARCH_K3 && SPL_DM_REGULATOR + bool "AVS class 0 support for K3 devices" + help + K3 devices have the optimized voltage values for the main voltage + domains stored in efuse within the VTM IP. This driver reads the + optimized voltage from the efuse, so that it can be programmed + to the PMIC on board. + endmenu diff --git a/drivers/misc/Makefile b/drivers/misc/Makefile index 0001d105ba..74d01ef392 100644 --- a/drivers/misc/Makefile +++ b/drivers/misc/Makefile @@ -65,3 +65,4 @@ obj-$(CONFIG_TWL4030_LED) += twl4030_led.o obj-$(CONFIG_VEXPRESS_CONFIG) += vexpress_config.o obj-$(CONFIG_WINBOND_W83627) += winbond_w83627.o obj-$(CONFIG_JZ4780_EFUSE) += jz4780_efuse.o +obj-$(CONFIG_K3_AVS0) += k3_avs.o diff --git a/drivers/misc/k3_avs.c b/drivers/misc/k3_avs.c new file mode 100644 index 0000000000..dd7fc3d585 --- /dev/null +++ b/drivers/misc/k3_avs.c @@ -0,0 +1,366 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Texas Instruments' K3 Clas 0 Adaptive Voltage Scaling driver + * + * Copyright (C) 2019 Texas Instruments Incorporated - http://www.ti.com/ + * Tero Kristo t-kristo@ti.com + * + */ + +#include <common.h> +#include <dm.h> +#include <errno.h> +#include <asm/io.h> +#include <i2c.h> +#include <k3-avs.h> +#include <power/regulator.h> + +#define AM6_VTM_DEVINFO(i) (priv->base + 0x100 + 0x20 * (i)) +#define AM6_VTM_OPPVID_VD(i) (priv->base + 0x104 + 0x20 * (i)) + +#define AM6_VTM_AVS0_SUPPORTED BIT(12) + +#define AM6_VTM_OPP_SHIFT(opp) (8 * (opp)) +#define AM6_VTM_OPP_MASK 0xff + +#define VD_FLAG_INIT_DONE BIT(0) + +struct k3_avs_privdata { + void *base; + struct vd_config *vd_config; +}; + +struct opp { + u32 freq; + u32 volt; +}; + +struct vd_data { + int id; + u8 opp; + u8 flags; + int dev_id; + int clk_id; + struct opp opps[NUM_OPPS]; + struct udevice *supply; +}; + +struct vd_config { + struct vd_data *vds; + u32 (*efuse_xlate)(struct k3_avs_privdata *priv, int idx, int opp); +}; + +static struct k3_avs_privdata *k3_avs_priv; + +/** + * am6_efuse_voltage: read efuse voltage from VTM + * @priv: driver private data + * @idx: VD to read efuse for + * @opp: opp id to read + * + * Reads efuse value for the specified OPP, and converts the register + * value to a voltage. Returns the voltage in uV, or 0 if nominal voltage + * should be used. + * + * Efuse val to volt conversion logic: + * + * val > 171 volt increments in 20mV steps with base 171 => 1.66V + * val between 115 to 11 increments in 10mV steps with base 115 => 1.1V + * val between 15 to 115 increments in 5mV steps with base 15 => .6V + * val between 1 to 15 increments in 20mv steps with base 0 => .3V + * val 0 is invalid + */ +static u32 am6_efuse_xlate(struct k3_avs_privdata *priv, int idx, int opp) +{ + u32 val = readl(AM6_VTM_OPPVID_VD(idx)); + + val >>= AM6_VTM_OPP_SHIFT(opp); + val &= AM6_VTM_OPP_MASK; + + if (!val) + return 0; + + if (val > 171) + return 1660000 + 20000 * (val - 171); + + if (val > 115) + return 1100000 + 10000 * (val - 115); + + if (val > 15) + return 600000 + 5000 * (val - 15); + + return 300000 + 20000 * val; +} + +static int k3_avs_program_voltage(struct k3_avs_privdata *priv, + struct vd_data *vd, + int opp_id) +{ + u32 volt = vd->opps[opp_id].volt; + struct vd_data *vd2; + + if (!vd->supply) + return -ENODEV; + + vd->opp = opp_id; + vd->flags |= VD_FLAG_INIT_DONE; + + /* Take care of ganged rails and pick the Max amongst them*/ + for (vd2 = priv->vd_config->vds; vd2->id >= 0; vd2++) { + if (vd == vd2) + continue; + + if (vd2->supply != vd->supply) + continue; + + if (vd2->opps[vd2->opp].volt > volt) + volt = vd2->opps[vd2->opp].volt; + + vd2->flags |= VD_FLAG_INIT_DONE; + } + + return regulator_set_value(vd->supply, volt); +} + +static struct vd_data *get_vd(struct k3_avs_privdata *priv, int idx) +{ + struct vd_data *vd; + + for (vd = priv->vd_config->vds; vd->id >= 0 && vd->id != idx; vd++) + ; + + if (vd->id < 0) + return NULL; + + return vd; +} + +/** + * k3_avs_set_opp: Sets the voltage for an arbitrary VD rail + * @dev: AVS device + * @vdd_id: voltage domain ID + * @opp_id: OPP ID + * + * Programs the desired OPP value for the defined voltage rail. This + * should be called from board files if reconfiguration is desired. + * Returns 0 on success, negative error value on failure. + */ +int k3_avs_set_opp(struct udevice *dev, int vdd_id, int opp_id) +{ + struct k3_avs_privdata *priv = dev_get_priv(dev); + struct vd_data *vd; + + vd = get_vd(priv, vdd_id); + if (!vd) + return -EINVAL; + + return k3_avs_program_voltage(priv, vd, opp_id); +} + +static int match_opp(struct vd_data *vd, u32 freq) +{ + struct opp *opp; + int opp_id; + + for (opp_id = 0; opp_id < NUM_OPPS; opp_id++) { + opp = &vd->opps[opp_id]; + if (opp->freq == freq) + return opp_id; + } + + printf("No matching OPP found for freq %d.\n", freq); + + return -EINVAL; +} + +/** + * k3_avs_notify_freq: Notify clock rate change towards AVS subsystem + * @dev_id: Device ID for the clock to be changed + * @clk_id: Clock ID for the clock to be changed + * @freq: New frequency for clock + * + * Checks if the provided clock is the MPU clock or not, if not, return + * immediately. If MPU clock is provided, maps the provided MPU frequency + * towards an MPU OPP, and programs the voltage to the regulator. Return 0 + * on success, negative error value on failure. + */ +int k3_avs_notify_freq(int dev_id, int clk_id, u32 freq) +{ + int opp_id; + struct k3_avs_privdata *priv = k3_avs_priv; + struct vd_data *vd; + + for (vd = priv->vd_config->vds; vd->id >= 0; vd++) { + if (vd->dev_id != dev_id || vd->clk_id != clk_id) + continue; + + opp_id = match_opp(vd, freq); + if (opp_id < 0) + return opp_id; + + vd->opp = opp_id; + return k3_avs_program_voltage(priv, vd, opp_id); + } + + return -EINVAL; +} + +static int k3_avs_configure(struct udevice *dev, struct k3_avs_privdata *priv) +{ + struct vd_config *conf; + int ret; + char pname[20]; + struct vd_data *vd; + + conf = (void *)dev_get_driver_data(dev); + + priv->vd_config = conf; + + for (vd = conf->vds; vd->id >= 0; vd++) { + sprintf(pname, "vdd-supply-%d", vd->id); + ret = device_get_supply_regulator(dev, pname, &vd->supply); + if (ret) + dev_warn(dev, "supply not found for VD%d.\n", vd->id); + + sprintf(pname, "ti,default-opp-%d", vd->id); + ret = dev_read_u32_default(dev, pname, -1); + if (ret != -1) + vd->opp = ret; + } + + return 0; +} + +/** + * k3_avs_probe: parses VD info from VTM, and re-configures the OPP data + * + * Parses all VDs on a device calculating the AVS class-0 voltages for them, + * and updates the vd_data based on this. The vd_data itself shall be used + * to program the required OPPs later on. Returns 0 on success, negative + * error value on failure. + */ +static int k3_avs_probe(struct udevice *dev) +{ + int opp_id; + u32 volt; + struct opp *opp; + struct k3_avs_privdata *priv; + struct vd_data *vd; + int ret; + + priv = dev_get_priv(dev); + + k3_avs_priv = priv; + + ret = k3_avs_configure(dev, priv); + if (ret) + return ret; + + priv->base = dev_read_addr_ptr(dev); + if (!priv->base) + return -ENODEV; + + for (vd = priv->vd_config->vds; vd->id >= 0; vd++) { + if (!(readl(AM6_VTM_DEVINFO(vd->id)) & + AM6_VTM_AVS0_SUPPORTED)) { + dev_warn(dev, "AVS-class 0 not supported for VD%d\n", + vd->id); + continue; + } + + for (opp_id = 0; opp_id < NUM_OPPS; opp_id++) { + opp = &vd->opps[opp_id]; + + if (!opp->freq) + continue; + + volt = priv->vd_config->efuse_xlate(priv, vd->id, + opp_id); + if (volt) + opp->volt = volt; + } + } + + for (vd = priv->vd_config->vds; vd->id >= 0; vd++) { + if (vd->flags & VD_FLAG_INIT_DONE) + continue; + + k3_avs_program_voltage(priv, vd, vd->opp); + } + + return 0; +} + +static struct vd_data am654_vd_data[] = { + { + .id = AM6_VDD_CORE, + .dev_id = 82, /* AM6_DEV_CBASS0 */ + .clk_id = 0, /* main sysclk0 */ + .opp = AM6_OPP_NOM, + .opps = { + [AM6_OPP_NOM] = { + .volt = 1000000, + .freq = 250000000, /* CBASS0 */ + }, + }, + }, + { + .id = AM6_VDD_MPU0, + .dev_id = 202, /* AM6_DEV_COMPUTE_CLUSTER_A53_0 */ + .clk_id = 0, /* ARM clock */ + .opp = AM6_OPP_NOM, + .opps = { + [AM6_OPP_NOM] = { + .volt = 1000000, + .freq = 800000000, + }, + [AM6_OPP_OD] = { + .volt = 1100000, + .freq = 1000000000, + }, + [AM6_OPP_TURBO] = { + .volt = 1220000, + .freq = 1100000000, + }, + }, + }, + { + .id = AM6_VDD_MPU1, + .opp = AM6_OPP_NOM, + .dev_id = 204, /* AM6_DEV_COMPUTE_CLUSTER_A53_2 */ + .clk_id = 0, /* ARM clock */ + .opps = { + [AM6_OPP_NOM] = { + .volt = 1000000, + .freq = 800000000, + }, + [AM6_OPP_OD] = { + .volt = 1100000, + .freq = 1000000000, + }, + [AM6_OPP_TURBO] = { + .volt = 1220000, + .freq = 1100000000, + }, + }, + }, + { .id = -1 }, +}; + +static struct vd_config am654_vd_config = { + .efuse_xlate = am6_efuse_xlate, + .vds = am654_vd_data, +}; + +static const struct udevice_id k3_avs_ids[] = { + { .compatible = "ti,am654-avs", .data = (ulong)&am654_vd_config }, + {} +}; + +U_BOOT_DRIVER(k3_avs) = { + .name = "k3_avs", + .of_match = k3_avs_ids, + .id = UCLASS_MISC, + .probe = k3_avs_probe, + .priv_auto_alloc_size = sizeof(struct k3_avs_privdata), +}; diff --git a/include/k3-avs.h b/include/k3-avs.h new file mode 100644 index 0000000000..9867481617 --- /dev/null +++ b/include/k3-avs.h @@ -0,0 +1,28 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Texas Instruments' K3 Adaptive Voltage Scaling driver + * + * Copyright (C) 2019 Texas Instruments Incorporated - http://www.ti.com/ + * Tero Kristo t-kristo@ti.com + * + */ + +#ifndef _K3_AVS0_ +#define _K3_AVS0_ + +#define AM6_VDD_WKUP 0 +#define AM6_VDD_MCU 1 +#define AM6_VDD_CORE 2 +#define AM6_VDD_MPU0 3 +#define AM6_VDD_MPU1 4 + +#define NUM_OPPS 4 + +#define AM6_OPP_NOM 1 +#define AM6_OPP_OD 2 +#define AM6_OPP_TURBO 3 + +int k3_avs_set_opp(struct udevice *dev, int vdd_id, int opp_id); +int k3_avs_notify_freq(int dev_id, int clk_id, u32 freq); + +#endif

Notify AVS driver upon setting clock rate so that voltage is changed accordingly.

Signed-off-by: Keerthy j-keerthy@ti.com --- Changes in v3:

* No change

Changes in v2:

* No change

drivers/clk/clk-ti-sci.c | 5 +++++ 1 file changed, 5 insertions(+)

diff --git a/drivers/clk/clk-ti-sci.c b/drivers/clk/clk-ti-sci.c index c25415d410..478349f22f 100644 --- a/drivers/clk/clk-ti-sci.c +++ b/drivers/clk/clk-ti-sci.c @@ -13,6 +13,7 @@ #include <errno.h> #include <clk-uclass.h> #include <linux/soc/ti/ti_sci_protocol.h> +#include <k3-avs.h>

/** * struct ti_sci_clk_data - clock controller information structure @@ -101,6 +102,10 @@ static ulong ti_sci_clk_set_rate(struct clk *clk, ulong rate)

debug("%s(clk=%p, rate=%lu)\n", __func__, clk, rate);

+#ifdef CONFIG_K3_AVS0 + k3_avs_notify_freq(clk->id, clk->data, rate); +#endif + /* Ask for exact frequency by using same value for min/target/max */ ret = cops->set_freq(sci, clk->id, clk->data, rate, rate, rate); if (ret)

From: Tero Kristo t-kristo@ti.com

TPS6236x is a family of step down DC-DC converters optimized for battery powered portable applications for a small solution size. Add a regulator driver for supporting these devices.

Signed-off-by: Tero Kristo t-kristo@ti.com Signed-off-by: Keerthy j-keerthy@ti.com ---

Changes in v3:

* No change

Changes in v2:

* No change

drivers/power/regulator/Kconfig | 10 ++ drivers/power/regulator/Makefile | 1 + drivers/power/regulator/tps62360_regulator.c | 123 +++++++++++++++++++ 3 files changed, 134 insertions(+) create mode 100644 drivers/power/regulator/tps62360_regulator.c

diff --git a/drivers/power/regulator/Kconfig b/drivers/power/regulator/Kconfig index 9aa00fad42..56d68ee40e 100644 --- a/drivers/power/regulator/Kconfig +++ b/drivers/power/regulator/Kconfig @@ -273,6 +273,16 @@ config DM_REGULATOR_TPS65910 regulator types of the TPS65910 (BUCK, BOOST and LDO). It implements the get/set api for value and enable.

+config DM_REGULATOR_TPS62360 + bool "Enable driver for TPS6236x Power Regulator" + depends on DM_REGULATOR + help + The TPS6236X DC/DC step down converter provides a single output + power line peaking at 3A current. This driver supports all four + variants of the chip (TPS62360, TPS62361, TPS62362, TPS62363). It + implements the get/set api for value only, as the power line is + always on. + config DM_REGULATOR_STPMIC1 bool "Enable driver for STPMIC1 regulators" depends on DM_REGULATOR && PMIC_STPMIC1 diff --git a/drivers/power/regulator/Makefile b/drivers/power/regulator/Makefile index 6a3d4bbee4..9198841b4f 100644 --- a/drivers/power/regulator/Makefile +++ b/drivers/power/regulator/Makefile @@ -26,4 +26,5 @@ obj-$(CONFIG_$(SPL_)DM_REGULATOR_LP873X) += lp873x_regulator.o obj-$(CONFIG_$(SPL_)DM_REGULATOR_LP87565) += lp87565_regulator.o obj-$(CONFIG_$(SPL_)DM_REGULATOR_STM32_VREFBUF) += stm32-vrefbuf.o obj-$(CONFIG_DM_REGULATOR_TPS65910) += tps65910_regulator.o +obj-$(CONFIG_DM_REGULATOR_TPS62360) += tps62360_regulator.o obj-$(CONFIG_$(SPL_)DM_REGULATOR_STPMIC1) += stpmic1.o diff --git a/drivers/power/regulator/tps62360_regulator.c b/drivers/power/regulator/tps62360_regulator.c new file mode 100644 index 0000000000..3b123f503c --- /dev/null +++ b/drivers/power/regulator/tps62360_regulator.c @@ -0,0 +1,123 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Copyright (C) 2019 Texas Instruments Incorporated - http://www.ti.com/ + * Tero Kristo t-kristo@ti.com + */ + +#include <common.h> +#include <dm.h> +#include <i2c.h> +#include <power/regulator.h> + +#define TPS62360_REG_SET0 0 + +#define TPS62360_I2C_CHIP 0x60 + +#define TPS62360_VSEL_STEPSIZE 10000 /* In uV */ + +struct tps62360_regulator_config { + u32 vmin; + u32 vmax; +}; + +struct tps62360_regulator_pdata { + u8 vsel_offset; + struct udevice *i2c; + struct tps62360_regulator_config *config; +}; + +/* + * TPS62362/TPS62363 are just re-using these values for now, their preset + * voltage values are just different compared to TPS62360/TPS62361. + */ +static struct tps62360_regulator_config tps62360_data = { + .vmin = 770000, + .vmax = 1400000, +}; + +static struct tps62360_regulator_config tps62361_data = { + .vmin = 500000, + .vmax = 1770000, +}; + +static int tps62360_regulator_set_value(struct udevice *dev, int uV) +{ + struct tps62360_regulator_pdata *pdata = dev_get_platdata(dev); + u8 regval; + + if (uV < pdata->config->vmin || uV > pdata->config->vmax) + return -EINVAL; + + uV -= pdata->config->vmin; + + uV = DIV_ROUND_UP(uV, TPS62360_VSEL_STEPSIZE); + + if (uV > U8_MAX) + return -EINVAL; + + regval = (u8)uV; + + return dm_i2c_write(pdata->i2c, TPS62360_REG_SET0 + pdata->vsel_offset, + &regval, 1); +} + +static int tps62360_regulator_get_value(struct udevice *dev) +{ + u8 regval; + int ret; + struct tps62360_regulator_pdata *pdata = dev_get_platdata(dev); + + ret = dm_i2c_read(pdata->i2c, TPS62360_REG_SET0 + pdata->vsel_offset, + &regval, 1); + if (ret) { + dev_err(dev, "i2c read failed: %d\n", ret); + return ret; + } + + return (u32)regval * TPS62360_VSEL_STEPSIZE + pdata->config->vmin; +} + +static int tps62360_regulator_ofdata_to_platdata(struct udevice *dev) +{ + struct tps62360_regulator_pdata *pdata = dev_get_platdata(dev); + u8 vsel0; + u8 vsel1; + int ret; + + pdata->config = (void *)dev_get_driver_data(dev); + + vsel0 = dev_read_bool(dev, "ti,vsel0-state-high"); + vsel1 = dev_read_bool(dev, "ti,vsel1-state-high"); + + pdata->vsel_offset = vsel0 + vsel1 * 2; + + ret = i2c_get_chip(dev->parent, TPS62360_I2C_CHIP, 1, &pdata->i2c); + if (ret) { + dev_err(dev, "i2c dev get failed.\n"); + return ret; + } + + return 0; +} + +static const struct dm_regulator_ops tps62360_regulator_ops = { + .get_value = tps62360_regulator_get_value, + .set_value = tps62360_regulator_set_value, +}; + +static const struct udevice_id tps62360_regulator_ids[] = { + { .compatible = "ti,tps62360", .data = (ulong)&tps62360_data }, + { .compatible = "ti,tps62361", .data = (ulong)&tps62361_data }, + { .compatible = "ti,tps62362", .data = (ulong)&tps62360_data }, + { .compatible = "ti,tps62363", .data = (ulong)&tps62361_data }, + { }, +}; + +U_BOOT_DRIVER(tps62360_regulator) = { + .name = "tps62360_regulator", + .id = UCLASS_REGULATOR, + .ops = &tps62360_regulator_ops, + .of_match = tps62360_regulator_ids, + .platdata_auto_alloc_size = sizeof(struct tps62360_regulator_pdata), + .ofdata_to_platdata = tps62360_regulator_ofdata_to_platdata, +};

j721e SoCs have different OPP tables. Add support for the same.

Note: DM Still has lot of voltages TBD hence the correct values need to be programmed once they are published.

Signed-off-by: Keerthy j-keerthy@ti.com --- Changes in v3:

* No change

Changes in v2:

* No change

drivers/misc/k3_avs.c | 22 ++++++++++++++++++++++ include/k3-avs.h | 2 ++ 2 files changed, 24 insertions(+)

diff --git a/drivers/misc/k3_avs.c b/drivers/misc/k3_avs.c index dd7fc3d585..c19c3c0646 100644 --- a/drivers/misc/k3_avs.c +++ b/drivers/misc/k3_avs.c @@ -347,6 +347,27 @@ static struct vd_data am654_vd_data[] = { { .id = -1 }, };

+static struct vd_data j721e_vd_data[] = { + { + .id = J721E_VDD_MPU, + .opp = AM6_OPP_NOM, + .dev_id = 202, /* J721E_DEV_A72SS0_CORE0 */ + .clk_id = 2, /* ARM clock */ + .opps = { + [AM6_OPP_NOM] = { + .volt = 880000, /* TBD in DM */ + .freq = 2000000000, + }, + }, + }, + { .id = -1 }, +}; + +static struct vd_config j721e_vd_config = { + .efuse_xlate = am6_efuse_xlate, + .vds = j721e_vd_data, +}; + static struct vd_config am654_vd_config = { .efuse_xlate = am6_efuse_xlate, .vds = am654_vd_data, @@ -354,6 +375,7 @@ static struct vd_config am654_vd_config = {

static const struct udevice_id k3_avs_ids[] = { { .compatible = "ti,am654-avs", .data = (ulong)&am654_vd_config }, + { .compatible = "ti,j721e-avs", .data = (ulong)&j721e_vd_config }, {} };

diff --git a/include/k3-avs.h b/include/k3-avs.h index 9867481617..e3c3cafbb9 100644 --- a/include/k3-avs.h +++ b/include/k3-avs.h @@ -16,6 +16,8 @@ #define AM6_VDD_MPU0 3 #define AM6_VDD_MPU1 4

+#define J721E_VDD_MPU 2 + #define NUM_OPPS 4

#define AM6_OPP_NOM 1

Add support to bind the regulators/child nodes with the pmic.

Signed-off-by: Keerthy j-keerthy@ti.com --- Changes in v3:

* No change

Changes in v2:

* No change

drivers/power/pmic/Kconfig | 7 +++ drivers/power/pmic/Makefile | 1 + drivers/power/pmic/tps65941.c | 83 +++++++++++++++++++++++++++++++++++ include/power/tps65941.h | 26 +++++++++++ 4 files changed, 117 insertions(+) create mode 100644 drivers/power/pmic/tps65941.c create mode 100644 include/power/tps65941.h

diff --git a/drivers/power/pmic/Kconfig b/drivers/power/pmic/Kconfig index 586772fdec..9d3667a867 100644 --- a/drivers/power/pmic/Kconfig +++ b/drivers/power/pmic/Kconfig @@ -267,3 +267,10 @@ config SPL_PMIC_LP87565 help The LP87565 is a PMIC containing a bunch of SMPS. This driver binds the pmic children in SPL. + +config PMIC_TPS65941 + bool "Enable driver for Texas Instruments TPS65941 PMIC" + depends on DM_PMIC + help + The TPS65941 is a PMIC containing a bunch of SMPS & LDOs. + This driver binds the pmic children. diff --git a/drivers/power/pmic/Makefile b/drivers/power/pmic/Makefile index 888dbb2857..ec64327805 100644 --- a/drivers/power/pmic/Makefile +++ b/drivers/power/pmic/Makefile @@ -39,3 +39,4 @@ obj-$(CONFIG_POWER_TPS65218) += pmic_tps65218.o obj-$(CONFIG_POWER_TPS65910) += pmic_tps65910.o obj-$(CONFIG_POWER_HI6553) += pmic_hi6553.o obj-$(CONFIG_POWER_MC34VR500) += pmic_mc34vr500.o +obj-$(CONFIG_PMIC_TPS65941) += tps65941.o diff --git a/drivers/power/pmic/tps65941.c b/drivers/power/pmic/tps65941.c new file mode 100644 index 0000000000..e8f3c950bd --- /dev/null +++ b/drivers/power/pmic/tps65941.c @@ -0,0 +1,83 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * (C) Copyright 2019 Texas Instruments Incorporated, <www.ti.com> + * Keerthy j-keerthy@ti.com + */ + +#include <common.h> +#include <fdtdec.h> +#include <errno.h> +#include <dm.h> +#include <i2c.h> +#include <power/pmic.h> +#include <power/regulator.h> +#include <power/tps65941.h> +#include <dm/device.h> + +static const struct pmic_child_info pmic_children_info[] = { + { .prefix = "ldo", .driver = TPS65941_LDO_DRIVER }, + { .prefix = "buck", .driver = TPS65941_BUCK_DRIVER }, + { }, +}; + +static int tps65941_write(struct udevice *dev, uint reg, const uint8_t *buff, + int len) +{ + if (dm_i2c_write(dev, reg, buff, len)) { + pr_err("write error to device: %p register: %#x!\n", dev, reg); + return -EIO; + } + + return 0; +} + +static int tps65941_read(struct udevice *dev, uint reg, uint8_t *buff, int len) +{ + if (dm_i2c_read(dev, reg, buff, len)) { + pr_err("read error from device: %p register: %#x!\n", dev, reg); + return -EIO; + } + + return 0; +} + +static int tps65941_bind(struct udevice *dev) +{ + ofnode regulators_node; + int children; + + regulators_node = dev_read_subnode(dev, "regulators"); + if (!ofnode_valid(regulators_node)) { + debug("%s: %s regulators subnode not found!\n", __func__, + dev->name); + return -ENXIO; + } + + debug("%s: '%s' - found regulators subnode\n", __func__, dev->name); + + children = pmic_bind_children(dev, regulators_node, pmic_children_info); + if (!children) + printf("%s: %s - no child found\n", __func__, dev->name); + + /* Always return success for this device */ + return 0; +} + +static struct dm_pmic_ops tps65941_ops = { + .read = tps65941_read, + .write = tps65941_write, +}; + +static const struct udevice_id tps65941_ids[] = { + { .compatible = "ti,tps659411", .data = TPS659411 }, + { .compatible = "ti,tps659413", .data = TPS659413 }, + { } +}; + +U_BOOT_DRIVER(pmic_tps65941) = { + .name = "tps65941_pmic", + .id = UCLASS_PMIC, + .of_match = tps65941_ids, + .bind = tps65941_bind, + .ops = &tps65941_ops, +}; diff --git a/include/power/tps65941.h b/include/power/tps65941.h new file mode 100644 index 0000000000..2d48b31ae3 --- /dev/null +++ b/include/power/tps65941.h @@ -0,0 +1,26 @@ +#define TPS659411 0x0 +#define TPS659412 0x1 +#define TPS659413 0x2 +#define TPS659414 0x3 + +/* I2C device address for pmic tps65941 */ +#define TPS65941_I2C_ADDR (0x12 >> 1) +#define TPS65941_LDO_NUM 4 +#define TPS65941_BUCK_NUM 5 + +/* Drivers name */ +#define TPS65941_LDO_DRIVER "tps65941_ldo" +#define TPS65941_BUCK_DRIVER "tps65941_buck" + +#define TPS65941_BUCK_VOLT_MASK 0xFF +#define TPS65941_BUCK_VOLT_MAX_HEX 0xFF +#define TPS65941_BUCK_VOLT_MAX 3340000 +#define TPS65941_BUCK_MODE_MASK 0x1 + +#define TPS65941_LDO_VOLT_MASK 0x3E +#define TPS65941_LDO_VOLT_MAX_HEX 0x3A +#define TPS65941_LDO_VOLT_MIN_HEX 0x4 +#define TPS65941_LDO_VOLT_MAX 3300000 +#define TPS65941_LDO_MODE_MASK 0x1 +#define TPS65941_LDO_BYPASS_EN 0x80 +#define TP65941_BUCK_CONF_SLEW_MASK 0x7

The driver provides regulator set/get voltage enable/disable functions for tps65941 family of PMICs.

Signed-off-by: Keerthy j-keerthy@ti.com --- Changes in v3:

* No change

Changes in v2:

* No change

drivers/power/regulator/Kconfig | 10 + drivers/power/regulator/Makefile | 1 + drivers/power/regulator/tps65941_regulator.c | 407 +++++++++++++++++++ 3 files changed, 418 insertions(+) create mode 100644 drivers/power/regulator/tps65941_regulator.c

diff --git a/drivers/power/regulator/Kconfig b/drivers/power/regulator/Kconfig index 56d68ee40e..25fc787a29 100644 --- a/drivers/power/regulator/Kconfig +++ b/drivers/power/regulator/Kconfig @@ -323,3 +323,13 @@ config SPL_DM_REGULATOR_LP873X This enables implementation of driver-model regulator uclass features for REGULATOR LP873X and the family of LP873X PMICs. The driver implements get/set api for: value and enable in SPL. + +config DM_REGULATOR_TPS65941 + bool "Enable driver for TPS65941 PMIC regulators" + depends on PMIC_TPS65941 + help + This enables implementation of driver-model regulator uclass + features for REGULATOR TPS65941 and the family of TPS65941 PMICs. + TPS65941 series of PMICs have 5 single phase BUCKs that can also + be configured in multi phase modes & 4 LDOs. The driver implements + get/set api for value and enable. diff --git a/drivers/power/regulator/Makefile b/drivers/power/regulator/Makefile index 9198841b4f..b611c901ba 100644 --- a/drivers/power/regulator/Makefile +++ b/drivers/power/regulator/Makefile @@ -28,3 +28,4 @@ obj-$(CONFIG_$(SPL_)DM_REGULATOR_STM32_VREFBUF) += stm32-vrefbuf.o obj-$(CONFIG_DM_REGULATOR_TPS65910) += tps65910_regulator.o obj-$(CONFIG_DM_REGULATOR_TPS62360) += tps62360_regulator.o obj-$(CONFIG_$(SPL_)DM_REGULATOR_STPMIC1) += stpmic1.o +obj-$(CONFIG_DM_REGULATOR_TPS65941) += tps65941_regulator.o diff --git a/drivers/power/regulator/tps65941_regulator.c b/drivers/power/regulator/tps65941_regulator.c new file mode 100644 index 0000000000..a00ef58129 --- /dev/null +++ b/drivers/power/regulator/tps65941_regulator.c @@ -0,0 +1,407 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * (C) Copyright 2019 + * Texas Instruments Incorporated, <www.ti.com> + * + * Keerthy j-keerthy@ti.com + */ + +#include <common.h> +#include <fdtdec.h> +#include <errno.h> +#include <dm.h> +#include <i2c.h> +#include <power/pmic.h> +#include <power/regulator.h> +#include <power/tps65941.h> + +static const char tps65941_buck_ctrl[TPS65941_BUCK_NUM] = {0x4, 0x6, 0x8, 0xA, + 0xC}; +static const char tps65941_buck_vout[TPS65941_BUCK_NUM] = {0xE, 0x10, 0x12, + 0x14, 0x16}; +static const char tps65941_ldo_ctrl[TPS65941_BUCK_NUM] = {0x1D, 0x1E, 0x1F, + 0x20}; +static const char tps65941_ldo_vout[TPS65941_BUCK_NUM] = {0x23, 0x24, 0x25, + 0x26}; + +static int tps65941_buck_enable(struct udevice *dev, int op, bool *enable) +{ + int ret; + unsigned int adr; + struct dm_regulator_uclass_platdata *uc_pdata; + + uc_pdata = dev_get_uclass_platdata(dev); + adr = uc_pdata->ctrl_reg; + + ret = pmic_reg_read(dev->parent, adr); + if (ret < 0) + return ret; + + if (op == PMIC_OP_GET) { + ret &= TPS65941_BUCK_MODE_MASK; + + if (ret) + *enable = true; + else + *enable = false; + + return 0; + } else if (op == PMIC_OP_SET) { + if (*enable) + ret |= TPS65941_BUCK_MODE_MASK; + else + ret &= ~TPS65941_BUCK_MODE_MASK; + ret = pmic_reg_write(dev->parent, adr, ret); + if (ret) + return ret; + } + + return 0; +} + +static int tps65941_buck_volt2val(int uV) +{ + if (uV > TPS65941_BUCK_VOLT_MAX) + return -EINVAL; + else if (uV > 1650000) + return (uV - 1660000) / 20000 + 0xAB; + else if (uV > 1110000) + return (uV - 1110000) / 10000 + 0x73; + else if (uV > 600000) + return (uV - 600000) / 5000 + 0x0F; + else if (uV >= 300000) + return (uV - 300000) / 20000 + 0x00; + else + return -EINVAL; +} + +static int tps65941_buck_val2volt(int val) +{ + if (val > TPS65941_BUCK_VOLT_MAX_HEX) + return -EINVAL; + else if (val > 0xAB) + return 1660000 + (val - 0xAB) * 20000; + else if (val > 0x73) + return 1100000 + (val - 0x73) * 10000; + else if (val > 0xF) + return 600000 + (val - 0xF) * 5000; + else if (val >= 0x0) + return 300000 + val * 5000; + else + return -EINVAL; +} + +int tps65941_lookup_slew(int id) +{ + switch (id) { + case 0: + return 33000; + case 1: + return 20000; + case 2: + return 10000; + case 3: + return 5000; + case 4: + return 2500; + case 5: + return 1300; + case 6: + return 630; + case 7: + return 310; + default: + return -1; + } +} + +static int tps65941_buck_val(struct udevice *dev, int op, int *uV) +{ + unsigned int hex, adr; + int ret, delta, uwait, slew; + struct dm_regulator_uclass_platdata *uc_pdata; + + uc_pdata = dev_get_uclass_platdata(dev); + + if (op == PMIC_OP_GET) + *uV = 0; + + adr = uc_pdata->volt_reg; + + ret = pmic_reg_read(dev->parent, adr); + if (ret < 0) + return ret; + + ret &= TPS65941_BUCK_VOLT_MASK; + ret = tps65941_buck_val2volt(ret); + if (ret < 0) + return ret; + + if (op == PMIC_OP_GET) { + *uV = ret; + return 0; + } + + /* + * Compute the delta voltage, find the slew rate and wait + * for the appropriate amount of time after voltage switch + */ + if (*uV > ret) + delta = *uV - ret; + else + delta = ret - *uV; + + slew = pmic_reg_read(dev->parent, uc_pdata->ctrl_reg + 1); + if (slew < 0) + return ret; + + slew &= TP65941_BUCK_CONF_SLEW_MASK; + slew = tps65941_lookup_slew(slew); + if (slew <= 0) + return ret; + + uwait = delta / slew; + + hex = tps65941_buck_volt2val(*uV); + if (hex < 0) + return hex; + + ret &= 0x0; + ret = hex; + + ret = pmic_reg_write(dev->parent, adr, ret); + + udelay(uwait); + + return ret; +} + +static int tps65941_ldo_enable(struct udevice *dev, int op, bool *enable) +{ + int ret; + unsigned int adr; + struct dm_regulator_uclass_platdata *uc_pdata; + + uc_pdata = dev_get_uclass_platdata(dev); + adr = uc_pdata->ctrl_reg; + + ret = pmic_reg_read(dev->parent, adr); + if (ret < 0) + return ret; + + if (op == PMIC_OP_GET) { + ret &= TPS65941_LDO_MODE_MASK; + + if (ret) + *enable = true; + else + *enable = false; + + return 0; + } else if (op == PMIC_OP_SET) { + if (*enable) + ret |= TPS65941_LDO_MODE_MASK; + else + ret &= ~TPS65941_LDO_MODE_MASK; + ret = pmic_reg_write(dev->parent, adr, ret); + if (ret) + return ret; + } + + return 0; +} + +static int tps65941_ldo_val2volt(int val) +{ + if (val > TPS65941_LDO_VOLT_MAX_HEX || val < TPS65941_LDO_VOLT_MIN_HEX) + return -EINVAL; + else if (val >= TPS65941_LDO_VOLT_MIN_HEX) + return 600000 + (val - TPS65941_LDO_VOLT_MIN_HEX) * 50000; + else + return -EINVAL; +} + +static int tps65941_ldo_val(struct udevice *dev, int op, int *uV) +{ + unsigned int hex, adr; + int ret; + struct dm_regulator_uclass_platdata *uc_pdata; + + uc_pdata = dev_get_uclass_platdata(dev); + + if (op == PMIC_OP_GET) + *uV = 0; + + adr = uc_pdata->volt_reg; + + ret = pmic_reg_read(dev->parent, adr); + if (ret < 0) + return ret; + + ret &= TPS65941_LDO_VOLT_MASK; + ret = tps65941_ldo_val2volt(ret); + if (ret < 0) + return ret; + + if (op == PMIC_OP_GET) { + *uV = ret; + return 0; + } + + hex = tps65941_buck_volt2val(*uV); + if (hex < 0) + return hex; + + ret &= 0x0; + ret = hex; + + ret = pmic_reg_write(dev->parent, adr, ret); + + return ret; +} + +static int tps65941_ldo_probe(struct udevice *dev) +{ + struct dm_regulator_uclass_platdata *uc_pdata; + int idx; + + uc_pdata = dev_get_uclass_platdata(dev); + uc_pdata->type = REGULATOR_TYPE_LDO; + + idx = dev->driver_data; + if (idx == 1 || idx == 2 || idx == 3 || idx == 4) { + debug("Single phase regulator\n"); + } else { + printf("Wrong ID for regulator\n"); + return -EINVAL; + } + + uc_pdata->ctrl_reg = tps65941_ldo_ctrl[idx - 1]; + uc_pdata->volt_reg = tps65941_ldo_vout[idx - 1]; + + return 0; +} + +static int tps65941_buck_probe(struct udevice *dev) +{ + struct dm_regulator_uclass_platdata *uc_pdata; + int idx; + + uc_pdata = dev_get_uclass_platdata(dev); + uc_pdata->type = REGULATOR_TYPE_BUCK; + + idx = dev->driver_data; + if (idx == 1 || idx == 2 || idx == 3 || idx == 4 || idx == 5) { + debug("Single phase regulator\n"); + } else if (idx == 12) { + idx = 1; + } else if (idx == 34) { + idx = 3; + } else if (idx == 1234) { + idx = 1; + } else { + printf("Wrong ID for regulator\n"); + return -EINVAL; + } + + uc_pdata->ctrl_reg = tps65941_buck_ctrl[idx - 1]; + uc_pdata->volt_reg = tps65941_buck_vout[idx - 1]; + + return 0; +} + +static int ldo_get_value(struct udevice *dev) +{ + int uV; + int ret; + + ret = tps65941_ldo_val(dev, PMIC_OP_GET, &uV); + if (ret) + return ret; + + return uV; +} + +static int ldo_set_value(struct udevice *dev, int uV) +{ + return tps65941_ldo_val(dev, PMIC_OP_SET, &uV); +} + +static int ldo_get_enable(struct udevice *dev) +{ + bool enable = false; + int ret; + + ret = tps65941_ldo_enable(dev, PMIC_OP_GET, &enable); + if (ret) + return ret; + + return enable; +} + +static int ldo_set_enable(struct udevice *dev, bool enable) +{ + return tps65941_ldo_enable(dev, PMIC_OP_SET, &enable); +} + +static int buck_get_value(struct udevice *dev) +{ + int uV; + int ret; + + ret = tps65941_buck_val(dev, PMIC_OP_GET, &uV); + if (ret) + return ret; + + return uV; +} + +static int buck_set_value(struct udevice *dev, int uV) +{ + return tps65941_buck_val(dev, PMIC_OP_SET, &uV); +} + +static int buck_get_enable(struct udevice *dev) +{ + bool enable = false; + int ret; + + ret = tps65941_buck_enable(dev, PMIC_OP_GET, &enable); + if (ret) + return ret; + + return enable; +} + +static int buck_set_enable(struct udevice *dev, bool enable) +{ + return tps65941_buck_enable(dev, PMIC_OP_SET, &enable); +} + +static const struct dm_regulator_ops tps65941_ldo_ops = { + .get_value = ldo_get_value, + .set_value = ldo_set_value, + .get_enable = ldo_get_enable, + .set_enable = ldo_set_enable, +}; + +U_BOOT_DRIVER(tps65941_ldo) = { + .name = TPS65941_LDO_DRIVER, + .id = UCLASS_REGULATOR, + .ops = &tps65941_ldo_ops, + .probe = tps65941_ldo_probe, +}; + +static const struct dm_regulator_ops tps65941_buck_ops = { + .get_value = buck_get_value, + .set_value = buck_set_value, + .get_enable = buck_get_enable, + .set_enable = buck_set_enable, +}; + +U_BOOT_DRIVER(tps65941_buck) = { + .name = TPS65941_BUCK_DRIVER, + .id = UCLASS_REGULATOR, + .ops = &tps65941_buck_ops, + .probe = tps65941_buck_probe, +};

Initialize AVS class 0 so that mpu voltage rail is programmed to the AVS class 0 compensated value.

Signed-off-by: Keerthy j-keerthy@ti.com --- Changes in v3:

* No change

Changes in v2:

* uclass_get_device_by_driver used in place getting the first uclass Instance.

arch/arm/mach-k3/am6_init.c | 7 +++++++ 1 file changed, 7 insertions(+)

diff --git a/arch/arm/mach-k3/am6_init.c b/arch/arm/mach-k3/am6_init.c index 0b564f7bd1..99edcd9a24 100644 --- a/arch/arm/mach-k3/am6_init.c +++ b/arch/arm/mach-k3/am6_init.c @@ -116,6 +116,13 @@ void board_init_f(ulong dummy) /* Perform EEPROM-based board detection */ do_board_detect();

+#if defined(CONFIG_CPU_V7R) && defined(CONFIG_K3_AVS0) + ret = uclass_get_device_by_driver(UCLASS_MISC, DM_GET_DRIVER(k3_avs), + &dev); + if (ret) + printf("AVS init failed: %d\n", ret); +#endif + #ifdef CONFIG_K3_AM654_DDRSS ret = uclass_get_device(UCLASS_RAM, 0, &dev); if (ret)

Initialize avs class 0

Signed-off-by: Keerthy j-keerthy@ti.com --- Changes in v3:

* No change

Changes in v2:

* No change

arch/arm/mach-k3/j721e_init.c | 7 +++++++ 1 file changed, 7 insertions(+)

diff --git a/arch/arm/mach-k3/j721e_init.c b/arch/arm/mach-k3/j721e_init.c index 5e3813252b..d0bf86abeb 100644 --- a/arch/arm/mach-k3/j721e_init.c +++ b/arch/arm/mach-k3/j721e_init.c @@ -118,6 +118,13 @@ void board_init_f(ulong dummy) preloader_console_init(); #endif

+#if defined(CONFIG_CPU_V7R) && defined(CONFIG_K3_AVS0) + ret = uclass_get_device_by_driver(UCLASS_MISC, DM_GET_DRIVER(k3_avs), + &dev); + if (ret) + printf("AVS init failed: %d\n", ret); +#endif + #if defined(CONFIG_K3_J721E_DDRSS) ret = uclass_get_device(UCLASS_RAM, 0, &dev); if (ret)

Add VTM node for voltage and thermal management. For u-boot, this is needed for supporting AVS class 0, as the efuse values for the OPPs are stored under the VTM.

Signed-off-by: Tero Kristo t-kristo@ti.com Signed-off-by: Keerthy j-keerthy@ti.com --- Changes in v3:

* Moved from generic wakeup.dtsi to r5 board file.

Changes in v2:

* No change

arch/arm/dts/k3-am654-r5-base-board.dts | 7 +++++++ 1 file changed, 7 insertions(+)

diff --git a/arch/arm/dts/k3-am654-r5-base-board.dts b/arch/arm/dts/k3-am654-r5-base-board.dts index 174d202306..6ab0f4af10 100644 --- a/arch/arm/dts/k3-am654-r5-base-board.dts +++ b/arch/arm/dts/k3-am654-r5-base-board.dts @@ -97,6 +97,13 @@ u-boot,dm-spl; };

+ wkup_vtm0: wkup_vtm@42050000 { + compatible = "ti,am654-vtm", "ti,am654-avs"; + reg = <0x42050000 0x25c>; + power-domains = <&k3_pds 80>; + #thermal-sensor-cells = <1>; + }; + clk_200mhz: dummy_clock { compatible = "fixed-clock"; #clock-cells = <0>;

From: Tero Kristo t-kristo@ti.com

Enable wkup_i2c0 as this is needed for voltage control.

Signed-off-by: Tero Kristo t-kristo@ti.com Signed-off-by: Keerthy j-keerthy@ti.com --- Changes in v3:

* No change

Changes in v2:

* No change

arch/arm/dts/k3-am654-r5-base-board.dts | 1 + 1 file changed, 1 insertion(+)

diff --git a/arch/arm/dts/k3-am654-r5-base-board.dts b/arch/arm/dts/k3-am654-r5-base-board.dts index 6ab0f4af10..98868afd9c 100644 --- a/arch/arm/dts/k3-am654-r5-base-board.dts +++ b/arch/arm/dts/k3-am654-r5-base-board.dts @@ -218,4 +218,5 @@ pinctrl-names = "default"; pinctrl-0 = <&wkup_i2c0_pins_default>; clock-frequency = <400000>; + u-boot,dm-spl; };

From: Tero Kristo t-kristo@ti.com

MPU voltage on AM65x-evm is controlled via the TPS62363 chip attached to i2c0 bus. Add device node for this so that it can be controlled via a regulator driver.

Signed-off-by: Tero Kristo t-kristo@ti.com Signed-off-by: Keerthy j-keerthy@ti.com --- Changes in v3:

* No change

Changes in v2:

* No change

arch/arm/dts/k3-am654-r5-base-board.dts | 13 +++++++++++++ 1 file changed, 13 insertions(+)

diff --git a/arch/arm/dts/k3-am654-r5-base-board.dts b/arch/arm/dts/k3-am654-r5-base-board.dts index 98868afd9c..baa3a2c9e7 100644 --- a/arch/arm/dts/k3-am654-r5-base-board.dts +++ b/arch/arm/dts/k3-am654-r5-base-board.dts @@ -219,4 +219,17 @@ pinctrl-0 = <&wkup_i2c0_pins_default>; clock-frequency = <400000>; u-boot,dm-spl; + + vdd_mpu: tps62363@60 { + compatible = "ti,tps62363"; + reg = <0x60>; + regulator-name = "VDD_MPU"; + regulator-min-microvolt = <500000>; + regulator-max-microvolt = <1770000>; + regulator-always-on; + regulator-boot-on; + ti,vsel0-state-high; + ti,vsel1-state-high; + u-boot,dm-spl; + }; };

From: Tero Kristo t-kristo@ti.com

Link the vdd-supplies for the voltage domains under the VTM node. Also, enable the node under SPL. This will enable the AVS class 0 support on am65x-evm board.

Signed-off-by: Tero Kristo t-kristo@ti.com Signed-off-by: Keerthy j-keerthy@ti.com --- Changes in v3:

* No change

Changes in v2:

* No change

arch/arm/dts/k3-am654-r5-base-board.dts | 6 ++++++ 1 file changed, 6 insertions(+)

diff --git a/arch/arm/dts/k3-am654-r5-base-board.dts b/arch/arm/dts/k3-am654-r5-base-board.dts index baa3a2c9e7..5c110ef9dd 100644 --- a/arch/arm/dts/k3-am654-r5-base-board.dts +++ b/arch/arm/dts/k3-am654-r5-base-board.dts @@ -138,6 +138,12 @@ power-domains = <&k3_pds 146 TI_SCI_PD_SHARED>; };

+&wkup_vtm0 { + vdd-supply-3 = <&vdd_mpu>; + vdd-supply-4 = <&vdd_mpu>; + u-boot,dm-spl; +}; + &wkup_pmx0 { u-boot,dm-spl; wkup_uart0_pins_default: wkup_uart0_pins_default {

Add VTM node for voltage and thermal management. For u-boot, this is needed for supporting AVS class 0, as the efuse values for the OPPs are stored under the VTM.

Signed-off-by: Keerthy j-keerthy@ti.com --- Changes in v3:

* No change

Changes in v2:

* No change

arch/arm/dts/k3-j721e-r5-common-proc-board.dts | 7 +++++++ 1 file changed, 7 insertions(+)

diff --git a/arch/arm/dts/k3-j721e-r5-common-proc-board.dts b/arch/arm/dts/k3-j721e-r5-common-proc-board.dts index 54d7998d27..e569809fcb 100644 --- a/arch/arm/dts/k3-j721e-r5-common-proc-board.dts +++ b/arch/arm/dts/k3-j721e-r5-common-proc-board.dts @@ -59,6 +59,13 @@ mboxes= <&mcu_secproxy 4>, <&mcu_secproxy 5>; mbox-names = "tx", "rx"; }; + + wkup_vtm0: wkup_vtm@42040000 { + compatible = "ti,am654-vtm", "ti,j721e-avs"; + reg = <0x0 0x42040000 0x0 0x330>; + power-domains = <&k3_pds 154 TI_SCI_PD_EXCLUSIVE>; + #thermal-sensor-cells = <1>; + }; };

&dmsc {

Add tps65941 node and dependent wkup_i2c0 node needed for AVS class 0 support

Signed-off-by: Keerthy j-keerthy@ti.com --- Changes in v3:

* No change

Changes in v2:

* No change

arch/arm/dts/k3-j721e-mcu-wakeup.dtsi | 11 +++++++ .../arm/dts/k3-j721e-r5-common-proc-board.dts | 32 +++++++++++++++++++ 2 files changed, 43 insertions(+)

diff --git a/arch/arm/dts/k3-j721e-mcu-wakeup.dtsi b/arch/arm/dts/k3-j721e-mcu-wakeup.dtsi index b958b5b3c1..0ed09e469f 100644 --- a/arch/arm/dts/k3-j721e-mcu-wakeup.dtsi +++ b/arch/arm/dts/k3-j721e-mcu-wakeup.dtsi @@ -57,6 +57,17 @@ clock-names = "fclk"; };

+ wkup_i2c0: i2c@42120000 { + compatible = "ti,j721e-i2c", "ti,omap4-i2c"; + reg = <0x0 0x42120000 0x0 0x100>; + interrupts = <GIC_SPI 896 IRQ_TYPE_LEVEL_HIGH>; + #address-cells = <1>; + #size-cells = <0>; + clock-names = "fck"; + clocks = <&k3_clks 197 0>; + power-domains = <&k3_pds 197 TI_SCI_PD_EXCLUSIVE>; + }; + mcu_uart0: serial@40a00000 { compatible = "ti,j721e-uart", "ti,am654-uart"; reg = <0x00 0x40a00000 0x00 0x100>; diff --git a/arch/arm/dts/k3-j721e-r5-common-proc-board.dts b/arch/arm/dts/k3-j721e-r5-common-proc-board.dts index e569809fcb..165c38da4b 100644 --- a/arch/arm/dts/k3-j721e-r5-common-proc-board.dts +++ b/arch/arm/dts/k3-j721e-r5-common-proc-board.dts @@ -93,6 +93,13 @@ J721E_WKUP_IOPAD(0xe0, PIN_OUTPUT, 0) /* (G29) WKUP_GPIO0_12.MCU_UART0_TXD */ >; }; + + wkup_i2c0_pins_default: wkup-i2c0-pins-default { + pinctrl-single,pins = < + J721E_WKUP_IOPAD(0xf8, PIN_INPUT_PULLUP, 0) /* (J25) WKUP_I2C0_SCL */ + J721E_WKUP_IOPAD(0xfc, PIN_INPUT_PULLUP, 0) /* (H24) WKUP_I2C0_SDA */ + >; + }; };

&main_pmx0 { @@ -147,4 +154,29 @@ ti,driver-strength-ohm = <50>; };

+&wkup_i2c0 { + u-boot,dm-spl; + tps659413a: tps659413a@48 { + reg = <0x48>; + compatible = "ti,tps659413"; + u-boot,dm-spl; + pinctrl-names = "default"; + pinctrl-0 = <&wkup_i2c0_pins_default>; + clock-frequency = <400000>; + + regulators: regulators { + u-boot,dm-spl; + buck12_reg: buck12 { + /*VDD_MPU*/ + regulator-name = "buck12"; + regulator-min-microvolt = <800000>; + regulator-max-microvolt = <1250000>; + regulator-always-on; + regulator-boot-on; + u-boot,dm-spl; + }; + }; + }; +}; + #include "k3-j721e-common-proc-board-u-boot.dtsi"

Hook buck12_reg to vtm avs supply

Signed-off-by: Keerthy j-keerthy@ti.com --- Changes in v3:

* No change

Changes in v2:

* No change

arch/arm/dts/k3-j721e-r5-common-proc-board.dts | 5 +++++ 1 file changed, 5 insertions(+)

diff --git a/arch/arm/dts/k3-j721e-r5-common-proc-board.dts b/arch/arm/dts/k3-j721e-r5-common-proc-board.dts index 165c38da4b..41af48214f 100644 --- a/arch/arm/dts/k3-j721e-r5-common-proc-board.dts +++ b/arch/arm/dts/k3-j721e-r5-common-proc-board.dts @@ -179,4 +179,9 @@ }; };

+&wkup_vtm0 { + vdd-supply-2 = <&buck12_reg>; + u-boot,dm-spl; +}; + #include "k3-j721e-common-proc-board-u-boot.dtsi"

From: Tero Kristo t-kristo@ti.com

TPS62363 is used to control the MPU_VDD voltage, so enable the driver for this.

Signed-off-by: Tero Kristo t-kristo@ti.com Signed-off-by: Keerthy j-keerthy@ti.com --- Changes in v3:

* No change

Changes in v2:

* No change

configs/am65x_evm_r5_defconfig | 1 + 1 file changed, 1 insertion(+)

diff --git a/configs/am65x_evm_r5_defconfig b/configs/am65x_evm_r5_defconfig index d0619e9b7a..a721b24ba4 100644 --- a/configs/am65x_evm_r5_defconfig +++ b/configs/am65x_evm_r5_defconfig @@ -84,6 +84,7 @@ CONFIG_DM_REGULATOR=y CONFIG_SPL_DM_REGULATOR=y CONFIG_DM_REGULATOR_GPIO=y CONFIG_SPL_DM_REGULATOR_GPIO=y +CONFIG_DM_REGULATOR_TPS62360=y CONFIG_RAM=y CONFIG_SPL_RAM=y CONFIG_K3_SYSTEM_CONTROLLER=y

From: Tero Kristo t-kristo@ti.com

Enable AVS class 0 support for the R5 SPL bootloader.

Signed-off-by: Tero Kristo t-kristo@ti.com Signed-off-by: Keerthy j-keerthy@ti.com --- Changes in v3:

* No change

Changes in v2:

* No change

configs/am65x_evm_r5_defconfig | 1 + 1 file changed, 1 insertion(+)

diff --git a/configs/am65x_evm_r5_defconfig b/configs/am65x_evm_r5_defconfig index a721b24ba4..4f122808de 100644 --- a/configs/am65x_evm_r5_defconfig +++ b/configs/am65x_evm_r5_defconfig @@ -99,3 +99,4 @@ CONFIG_TIMER=y CONFIG_SPL_TIMER=y CONFIG_OMAP_TIMER=y CONFIG_FS_FAT_MAX_CLUSTSIZE=16384 +CONFIG_K3_AVS0=y

Enable AVS Class 0 & dependent config options.

Signed-off-by: Keerthy j-keerthy@ti.com --- Changes in v3:

* No change

Changes in v2:

* No change

configs/j721e_evm_r5_defconfig | 9 +++++++++ 1 file changed, 9 insertions(+)

diff --git a/configs/j721e_evm_r5_defconfig b/configs/j721e_evm_r5_defconfig index b7168eceb4..2b6dbf5a49 100644 --- a/configs/j721e_evm_r5_defconfig +++ b/configs/j721e_evm_r5_defconfig @@ -59,10 +59,14 @@ CONFIG_CLK_TI_SCI=y CONFIG_TI_SCI_PROTOCOL=y CONFIG_DM_GPIO=y CONFIG_DA8XX_GPIO=y +CONFIG_DM_I2C=y +CONFIG_I2C_SET_DEFAULT_BUS_NUM=y +CONFIG_SYS_I2C_OMAP24XX=y CONFIG_DM_MAILBOX=y CONFIG_K3_SEC_PROXY=y CONFIG_MISC=y CONFIG_FS_LOADER=y +CONFIG_K3_AVS0=y CONFIG_DM_MMC=y CONFIG_MMC_SDHCI=y CONFIG_MMC_SDHCI_AM654=y @@ -76,6 +80,11 @@ CONFIG_SPL_PINCTRL=y CONFIG_PINCTRL_SINGLE=y CONFIG_POWER_DOMAIN=y CONFIG_TI_SCI_POWER_DOMAIN=y +CONFIG_DM_PMIC=y +CONFIG_PMIC_TPS65941=y +CONFIG_DM_REGULATOR=y +CONFIG_SPL_DM_REGULATOR=y +CONFIG_DM_REGULATOR_TPS65941=y CONFIG_K3_SYSTEM_CONTROLLER=y CONFIG_REMOTEPROC_TI_K3_ARM64=y CONFIG_DM_RESET=y