| # -*- coding: utf-8 -*- |
| # Copyright 2019 The Chromium OS Authors. All rights reserved. |
| # Use of this source code is governed by a BSD-style license that can be |
| # found in the LICENSE file. |
| |
| """Grunt configs.""" |
| |
| from __future__ import print_function |
| |
| |
| def is_fast_required(use_futility, servo): |
| """Returns true if --fast is necessary to flash successfully. |
| |
| The configurations in this function consistently fail on the verify step, |
| adding --fast removes verification of the flash and allows these configs to |
| flash properly. Meant to be a temporary hack until b/143240576 is fixed. |
| |
| Args: |
| use_futility (bool): True if futility is to be used, False if |
| flashrom. |
| servo (servo_lib.Servo): The type name of the servo device being used. |
| |
| Returns: |
| bool: True if fast is necessary, False otherwise. |
| """ |
| return use_futility and servo.is_v4 |
| |
| |
| def get_commands(servo): |
| """Get specific flash commands for grunt |
| |
| Each board needs specific commands including the voltage for Vref, to turn |
| on and turn off the SPI flash. The get_*_commands() functions provide a |
| board-specific set of commands for these tasks. The voltage for this board |
| needs to be set to 1.8 V. |
| |
| Args: |
| servo (servo_lib.Servo): The servo connected to the target DUT. |
| |
| Returns: |
| list: [dut_control_on, dut_control_off, flashrom_cmd, futility_cmd] |
| dut_control*=2d arrays formmated like [["cmd1", "arg1", "arg2"], |
| ["cmd2", "arg3", "arg4"]] |
| where cmd1 will be run before cmd2 |
| flashrom_cmd=command to flash via flashrom |
| futility_cmd=command to flash via futility |
| """ |
| dut_control_on = [] |
| dut_control_off = [] |
| if servo.is_v2: |
| dut_control_on.append([ |
| 'spi2_vref:pp1800', |
| 'spi2_buf_en:on', |
| 'spi2_buf_on_flex_en:on', |
| 'cold_reset:on', |
| ]) |
| dut_control_off.append([ |
| 'spi2_vref:off', |
| 'spi2_buf_en:off', |
| 'spi2_buf_on_flex_en:off', |
| 'cold_reset:off', |
| ]) |
| programmer = 'ft2232_spi:type=google-servo-v2,serial=%s' % servo.serial |
| elif servo.is_micro: |
| dut_control_on.append(['spi2_vref:pp1800', 'spi2_buf_en:on']) |
| dut_control_off.append(['spi2_vref:off', 'spi2_buf_en:off']) |
| programmer = 'raiden_debug_spi:serial=%s' % servo.serial |
| elif servo.is_ccd: |
| # Note nothing listed for flashing with ccd_cr50 on go/grunt-care. |
| # These commands were based off the commands for other boards. |
| programmer = 'raiden_debug_spi:target=AP,serial=%s' % servo.serial |
| else: |
| raise Exception('%s not supported' % servo.version) |
| |
| flashrom_cmd = ['flashrom', '-p', programmer, '-w'] |
| futility_cmd = ['futility', 'update', '-p', programmer, '-i'] |
| |
| return [dut_control_on, dut_control_off, flashrom_cmd, futility_cmd] |