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-rwxr-xr-xmeta-facebook/meta-wedge/recipes-wedge/fan-ctrl/fan-ctrl/init_pwm.sh71
1 files changed, 0 insertions, 71 deletions
diff --git a/meta-facebook/meta-wedge/recipes-wedge/fan-ctrl/fan-ctrl/init_pwm.sh b/meta-facebook/meta-wedge/recipes-wedge/fan-ctrl/fan-ctrl/init_pwm.sh
deleted file mode 100755
index cf545be..0000000
--- a/meta-facebook/meta-wedge/recipes-wedge/fan-ctrl/fan-ctrl/init_pwm.sh
+++ /dev/null
@@ -1,71 +0,0 @@
-#!/bin/sh
-#
-# Copyright 2004-present Facebook. All Rights Reserved.
-#
-# This program file is free software; you can redistribute it and/or modify it
-# under the terms of the GNU General Public License as published by the
-# Free Software Foundation; version 2 of the License.
-#
-# This program is distributed in the hope that it will be useful, but WITHOUT
-# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-# FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
-# for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program in a file named COPYING; if not, write to the
-# Free Software Foundation, Inc.,
-# 51 Franklin Street, Fifth Floor,
-# Boston, MA 02110-1301 USA
-#
-PWM_DIR=/sys/devices/platform/ast_pwm_tacho.0
-
-set -e
-
-# The PWM frequency is
-
-# clk_source / ((2 ^ division_) * (2 * division_l) * (unit + 1))
-#
-# Our clk_source is 24Mhz. 4-pin fans are generally supposed to be driven with
-# a 25Khz PWM control signal. Therefore we want the divisor to equal 960.
-#
-# We also want the unit to be as large as possible, since this controls the
-# granularity with which we can modulate the PWM signal. The following
-# settings allow us to set the fan from 0 to 100% in increments of 1/96th.
-#
-# The AST chip supports 3 different PWM clock configurations, but we only use
-# type M for now.
-echo 0 > $PWM_DIR/pwm_type_m_division_h
-echo 5 > $PWM_DIR/pwm_type_m_division_l
-echo 95 > $PWM_DIR/pwm_type_m_unit
-
-# On wedge, there are 4 fans connected.
-# Each fan has one PWM input and 2 tacho outputs.
-# Here is the mapping between the fan and PWN/Tacho,
-# staring from the one from the edge
-# Fan 0: PWM 7, Tacho3, Tacho7
-# Fan 1: PWM 6, Tacho2, Tacho6
-# Fan 2: PWM 0, Tacho0, Tacho4
-# Fan 3: PWM 1, Tacho1, Tacho5
-
-# For each fan, setting the type, and 100% initially
-for pwm in 0 1 6 7; do
- echo 0 > $PWM_DIR/pwm${pwm}_type
- echo 0 > $PWM_DIR/pwm${pwm}_rising
- echo 0 > $PWM_DIR/pwm${pwm}_falling
- echo 1 > $PWM_DIR/pwm${pwm}_en
-done
-
-# Enable Tach 0..7
-echo 0 > $PWM_DIR/tacho0_source
-echo 0 > $PWM_DIR/tacho4_source
-echo 1 > $PWM_DIR/tacho1_source
-echo 1 > $PWM_DIR/tacho5_source
-echo 6 > $PWM_DIR/tacho2_source
-echo 6 > $PWM_DIR/tacho6_source
-echo 7 > $PWM_DIR/tacho3_source
-echo 7 > $PWM_DIR/tacho7_source
-t=0
-while [ $t -le 7 ]; do
- echo 1 > $PWM_DIR/tacho${t}_en
- t=$((t+1))
-done
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