Author: ian
Date: Fri Jun 22 20:45:40 2018
New Revision: 335564
URL: https://svnweb.freebsd.org/changeset/base/335564
Log:
Add spigen(4) fdt data overlays for RPI-B, RPI-2.
By adding spigen-rpi{2,-b}.dtso to fdt_overlays= in loader.conf, the fdt data
will set up the correct pinmux and device nodes to create a spigen(4) device
for each available chipselect pin.
Submitted by: Bob Frazier
Differential Revision: https://reviews.freebsd.org/D15067
Added:
head/sys/dts/arm/overlays/spigen-rpi-b.dtso (contents, props changed)
head/sys/dts/arm/overlays/spigen-rpi2.dtso (contents, props changed)
Modified:
head/sys/modules/dtb/rpi/Makefile
Added: head/sys/dts/arm/overlays/spigen-rpi-b.dtso
==============================================================================
--- /dev/null 00:00:00 1970 (empty, because file is newly added)
+++ head/sys/dts/arm/overlays/spigen-rpi-b.dtso Fri Jun 22 20:45:40 2018
(r335564)
@@ -0,0 +1,29 @@
+/* $FreeBSD$ */
+
+/dts-v1/;
+/plugin/;
+
+/ {
+ compatible = "brcm,bcm2835";
+};
+
+&{/soc/spi@7e204000} {
+ status = "okay";
+
+ spigen0: spigen0 {
+ compatible = "freebsd,spigen";
+ reg = <0>;
+ status = "okay";
+ };
+ spigen1: spigen1 {
+ compatible = "freebsd,spigen";
+ reg = <1>;
+ status = "okay";
+ };
+};
+
+&{/soc/gpio@7e200000/spi0_cs_pins} {
+ brcm,pins = <8 7>;
+ brcm,function = <4>; /* ALT0 */
+};
+
Added: head/sys/dts/arm/overlays/spigen-rpi2.dtso
==============================================================================
--- /dev/null 00:00:00 1970 (empty, because file is newly added)
+++ head/sys/dts/arm/overlays/spigen-rpi2.dtso Fri Jun 22 20:45:40 2018
(r335564)
@@ -0,0 +1,37 @@
+/* $FreeBSD$ */
+
+/dts-v1/;
+/plugin/;
+
+/ {
+ compatible = "brcm,bcm2836";
+};
+
+&{/soc/spi@7e204000} {
+ status = "okay";
+ spigen0: spigen0 {
+ compatible = "freebsd,spigen";
+ reg = <0>;
+ status = "okay";
+ };
+ spigen1: spigen1 {
+ compatible = "freebsd,spigen";
+ reg = <1>;
+ status = "okay";
+ };
+ spigen2: spigen2 {
+ compatible = "freebsd,spigen";
+ reg = <2>;
+ status = "okay";
+ };
+};
+
+&{/soc/gpio@7e200000/spi0_cs_pins} {
+ brcm,pins = <8 7 16>;
+ brcm,function = <4>; /* ALT0 */
+};
+
+&{/soc/gpio@7e200000/spi0_gpio7} {
+ brcm,pins = <7 8 16 9 10 11>;
+};
+
Modified: head/sys/modules/dtb/rpi/Makefile
==============================================================================
--- head/sys/modules/dtb/rpi/Makefile Fri Jun 22 20:27:40 2018
(r335563)
+++ head/sys/modules/dtb/rpi/Makefile Fri Jun 22 20:45:40 2018
(r335564)
@@ -2,6 +2,10 @@
# DTS files for the Raspberry Pi-B
DTS=rpi.dts rpi2.dts
+DTSO= \
+ spigen-rpi-b.dtso \
+ spigen-rpi2.dtso \
+
LINKS= \
${DTBDIR}/rpi.dtb ${DTBDIR}/bcm2835-rpi-b.dtb \
${DTBDIR}/rpi.dtb ${DTBDIR}/bcm2835-rpi-b-rev2.dtb \
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