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https://github.com/brain-hackers/u-boot-brain
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b5ee48c099
This patch adds support for more PMBus compatible devices to the NXP drivers for its QorIQ family devices. At runtime, the voltage regulator is queried over I2C, and the required voltage multiplier determined. This change supports the DIRECT and LINEAR PMBus voltage reporting modes. Previously, the driver only supported a few specific devices such as the IR36021 and LTC3882, so this change allows the QorIQ series to be used with a much larger variety of core voltage regulator devices. checkpatch warning "Use if (IS_DEFINED (...))" was ignored to maintain consistency with the existing code. Signed-off-by: Stephen Carlson <stcarlso@linux.microsoft.com> Signed-off-by: Wasim Khan <wasim.khan@nxp.com> Tested-by: Wasim Khan <wasim.khan@nxp.com> [Rebased] Signed-off-by: Priyanka Jain <priyanka.jain@nxp.com>
76 lines
2.4 KiB
C
76 lines
2.4 KiB
C
/* SPDX-License-Identifier: GPL-2.0+ */
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/*
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* Copyright 2014 Freescale Semiconductor, Inc.
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* Copyright 2020 NXP
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*/
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#ifndef __VID_H_
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#define __VID_H_
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/* IR36021 command codes */
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#define IR36021_LOOP1_MANUAL_ID_OFFSET 0x6A
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#define IR36021_LOOP1_VOUT_OFFSET 0x9A
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#define IR36021_MFR_ID_OFFSET 0x92
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#define IR36021_MFR_ID 0x43
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#define IR36021_INTEL_MODE_OFFSET 0x14
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#define IR36021_MODE_MASK 0x20
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#define IR36021_INTEL_MODE 0x00
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#define IR36021_AMD_MODE 0x20
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/* Step the IR regulator in 5mV increments */
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#define IR_VDD_STEP_DOWN 5
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#define IR_VDD_STEP_UP 5
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/* LTC3882 */
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#define PMBUS_CMD_WRITE_PROTECT 0x10
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/*
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* WRITE_PROTECT command supported values
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* 0x80: Disable all writes except WRITE_PROTECT, PAGE,
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* STORE_USER_ALL and MFR_EE_UNLOCK commands.
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* 0x40: Disable all writes except WRITE_PROTECT, PAGE, STORE_USER_ALL,
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* MFR_EE_UNLOCK, OPERATION, CLEAR_PEAKS and CLEAR_FAULTS commands.
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* Individual faults can also be cleared by writing a 1 to the
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* respective status bit.
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* 0x20: Disable all writes except WRITE_PROTECT, PAGE, STORE_USER_ ALL,
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* MFR_EE_UNLOCK, OPERATION, CLEAR_PEAKS, CLEAR_FAULTS, ON_OFF_CONFIG
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* and VOUT_COMMAND commands. Individual faults can be cleared by
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* writing a 1 to the respective status bit.
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* 0x00: Enables write to all commands
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*/
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#define EN_WRITE_ALL_CMD (0)
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#ifdef CONFIG_TARGET_LX2160ARDB
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/* The lowest and highest voltage allowed*/
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#define VDD_MV_MIN 775
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#define VDD_MV_MAX 855
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#endif
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#if defined(CONFIG_TARGET_LX2160AQDS) || defined(CONFIG_TARGET_LX2162AQDS)
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/* The lowest and highest voltage allowed*/
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#define VDD_MV_MIN 775
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#define VDD_MV_MAX 925
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#endif
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/* PM Bus commands code for LTC3882*/
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#define PWM_CHANNEL0 0x0
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#define PMBUS_CMD_PAGE 0x0
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#define PMBUS_CMD_READ_VOUT 0x8B
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#define PMBUS_CMD_VOUT_MODE 0x20
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#define PMBUS_CMD_VOUT_COMMAND 0x21
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#define PMBUS_CMD_PAGE_PLUS_WRITE 0x05
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#if defined(CONFIG_TARGET_LX2160AQDS) || defined(CONFIG_TARGET_LX2162AQDS) || \
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defined(CONFIG_TARGET_LX2160ARDB)
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/* Voltage monitor on channel 2*/
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#define I2C_VOL_MONITOR_BUS_V_OFFSET 0x2
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#define I2C_VOL_MONITOR_BUS_V_OVF 0x1
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#define I2C_VOL_MONITOR_BUS_V_SHIFT 3
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#define I2C_VOL_MONITOR_ADDR 0x63
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#define I2C_MUX_CH_VOL_MONITOR 0xA
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#endif
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int adjust_vdd(ulong vdd_override);
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u16 soc_get_fuse_vid(int vid_index);
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#endif /* __VID_H_ */
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