Author: phk
Date: Sun Jan 21 21:27:41 2018
New Revision: 328223
URL: https://svnweb.freebsd.org/changeset/base/328223
Log:
Rename rpi_pwm to bcm283x_pwm, and build it on armv[67] and arm64.
Truncate ratio if period is lowered.
Tested on Rpi2 and Rpi3.
Rpi3 requires DTB->DTS->edit->DTB hack
Added:
head/sys/modules/bcm283x_pwm/
- copied from r328222, head/sys/modules/rpi_pwm/
Deleted:
head/sys/modules/rpi_pwm/
Modified:
head/sys/arm/broadcom/bcm2835/bcm2835_pwm.c
head/sys/modules/Makefile
head/sys/modules/bcm283x_pwm/Makefile
Modified: head/sys/arm/broadcom/bcm2835/bcm2835_pwm.c
==============================================================================
--- head/sys/arm/broadcom/bcm2835/bcm2835_pwm.c Sun Jan 21 21:09:08 2018
(r328222)
+++ head/sys/arm/broadcom/bcm2835/bcm2835_pwm.c Sun Jan 21 21:27:41 2018
(r328223)
@@ -160,6 +160,8 @@ bcm_pwm_reconf(struct bcm_pwm_softc *sc)
/* Config PWM */
W_RNG(sc, sc->period);
+ if (sc->ratio > sc->period)
+ sc->ratio = sc->period;
W_DAT(sc, sc->ratio);
/* Start PWM */
Modified: head/sys/modules/Makefile
==============================================================================
--- head/sys/modules/Makefile Sun Jan 21 21:09:08 2018 (r328222)
+++ head/sys/modules/Makefile Sun Jan 21 21:27:41 2018 (r328223)
@@ -60,6 +60,7 @@ SUBDIR= \
${_autofs} \
${_auxio} \
${_bce} \
+ ${_bcm283x_pwm} \
bfe \
bge \
bhnd \
@@ -804,6 +805,10 @@ _cloudabi32= cloudabi32
_cloudabi64= cloudabi64
.endif
+.endif
+
+.if ${MACHINE_ARCH:Marmv[67]*} != "" || ${MACHINE_CPUARCH} == "aarch64"
+_bcm283x_pwm= bcm283x_pwm
.endif
.if ${MACHINE_ARCH:Marmv[67]*} != ""
Modified: head/sys/modules/bcm283x_pwm/Makefile
==============================================================================
--- head/sys/modules/rpi_pwm/Makefile Sun Jan 21 21:09:08 2018
(r328222)
+++ head/sys/modules/bcm283x_pwm/Makefile Sun Jan 21 21:27:41 2018
(r328223)
@@ -2,7 +2,7 @@
.PATH: ${SRCTOP}/sys/arm/broadcom/bcm2835/
-KMOD= rpi_pwm
+KMOD= bcm283x_pwm
SRCS= bcm2835_pwm.c
SRCS+= bus_if.h device_if.h ofw_bus_if.h
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