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authorRonan Le Martret <ronan.lemartret@iot.bzh>2018-08-28 06:57:55 +0000
committerJan-Simon Moeller <jsmoeller@linuxfoundation.org>2018-11-13 13:57:43 +0000
commit4e09f80c89189b60293c70922b121313d59a0699 (patch)
treeca2d47f1c698104e968e9e9cd6db77519e761923 /meta-agl-bsp/meta-rcar-gen3/recipes-kernel/linux/files
parent64b4b013867a540800f67cdfea435723f7791931 (diff)
[RCAR] ADSP enable and add sound hardware abstraction in DT
The ADSP on Renesas SoCs required a reserved memory area to become enabled, and this needs to be done manually. This patch adds sound hardware abstraction information for the m3ulcb and m3ulcb-kf (kingfisher) device trees. This is helpful on-board the ADSP for dynamically determining sound hardware at runtime, allowing single binaries to be used between the two boards. Future work will incorporate the h3ulcb and Salvator boards into the abstraction. Bug-AGL: SPEC-1227 Bug-AGL: SPEC-1424 Bug-AGL: SPEC-1571 Change-Id: I78edc5854a95520276bdcd9fd9766a120d2c04d7 Signed-off-by: Ronan Le Martret <ronan.lemartret@iot.bzh> Signed-off-by: Mark Farrugia <mark.farrugia@fiberdyne.com.au> Signed-off-by: Ronan Le Martret <ronan.lemartret@iot.bzh>
Diffstat (limited to 'meta-agl-bsp/meta-rcar-gen3/recipes-kernel/linux/files')
-rw-r--r--meta-agl-bsp/meta-rcar-gen3/recipes-kernel/linux/files/0004-ADSP-enable-and-add-sound-hardware-abstraction.patch121
1 files changed, 121 insertions, 0 deletions
diff --git a/meta-agl-bsp/meta-rcar-gen3/recipes-kernel/linux/files/0004-ADSP-enable-and-add-sound-hardware-abstraction.patch b/meta-agl-bsp/meta-rcar-gen3/recipes-kernel/linux/files/0004-ADSP-enable-and-add-sound-hardware-abstraction.patch
new file mode 100644
index 000000000..e0e726994
--- /dev/null
+++ b/meta-agl-bsp/meta-rcar-gen3/recipes-kernel/linux/files/0004-ADSP-enable-and-add-sound-hardware-abstraction.patch
@@ -0,0 +1,121 @@
+The ADSP on Renesas SoCs required a reserved memory area to become
+enabled, and this needs to be done manually.
+
+This patch adds sound hardware abstraction information for the m3ulcb
+and m3ulcb-kf (kingfisher) device trees. This is helpful on-board the
+ADSP for dynamically determining sound hardware at runtime, allowing
+single binaries to be used between the two boards.
+
+Future work will incorporate the h3ulcb and Salvator boards into the
+abstraction.
+
+Signed-off-by: Mark Farrugia <mark.farrugia@fiberdyne.com.au>
+---
+diff --git a/arch/arm64/boot/dts/renesas/r8a7796-m3ulcb-kf.dts b/arch/arm64/boot/dts/renesas/r8a7796-m3ulcb-kf.dts
+index de2390f009e7..4ccfa8315d17 100644
+--- a/arch/arm64/boot/dts/renesas/r8a7796-m3ulcb-kf.dts
++++ b/arch/arm64/boot/dts/renesas/r8a7796-m3ulcb-kf.dts
+@@ -17,3 +17,35 @@
+ compatible = "shimafuji,kingfisher", "renesas,m3ulcb",
+ "renesas,r8a7796";
+ };
++
++&adsp {
++
++ /* ADSP playback setting for pcm3168 */
++ adsp_playback0: adsp,playback {
++ mode = "tdm";
++ clock-mode = "master";
++ bus-width = <24>;
++ ssi = <3>;
++ bus-if = <0>;
++ channels = <8>;
++ pin-share-ssi = <4>;
++ };
++
++ /* ADSP capture setting for pcm3168 */
++ adsp_capture0: adsp,capture {
++ mode = "tdm";
++ clock-mode = "slave";
++ bus-width = <24>;
++ ssi = <4>;
++ bus-if = <0>;
++ channels = <8>;
++ pin-share-ssi = <3>;
++ };
++
++ adsp,ports {
++ port@0 {
++ playback = <&adsp_playback0>;
++ capture = <&adsp_capture0>;
++ };
++ };
++};
+\ No newline at end of file
+diff --git a/arch/arm64/boot/dts/renesas/r8a7796-m3ulcb.dts b/arch/arm64/boot/dts/renesas/r8a7796-m3ulcb.dts
+index 1cd64c1b3b31..71e59da3528d 100644
+--- a/arch/arm64/boot/dts/renesas/r8a7796-m3ulcb.dts
++++ b/arch/arm64/boot/dts/renesas/r8a7796-m3ulcb.dts
+@@ -45,11 +45,18 @@
+ reg = <0x00000000 0x54000000 0x0 0x03000000>;
+ };
+
++ /* For Audio DSP */
++ adsp_reserved: linux,adsp {
++ compatible = "shared-dma-pool";
++ reusable;
++ reg = <0x00000000 0x57000000 0x0 0x01000000>;
++ };
++
+ /* global autoconfigured region for contiguous allocations */
+ linux,cma {
+ compatible = "shared-dma-pool";
+ reusable;
+- reg = <0x00000000 0x57000000 0x0 0x19000000>;
++ reg = <0x00000000 0x58000000 0x0 0x18000000>;
+ linux,cma-default;
+ };
+
+@@ -110,6 +117,42 @@
+ "dclkin.0", "dclkin.1", "dclkin.2";
+ };
+
++&adsp {
++ status = "okay";
++ clock-frequency = <12288000 11289600>;
++ audio-clocks = <22579200 24576000>;
++ memory-region = <&adsp_reserved>;
++
++ /* ADSP playback setting for ak4613 */
++ adsp_playback0: adsp,playback {
++ mode = "i2s";
++ clock-mode = "master";
++ bus-width = <16>;
++ ssi = <0>;
++ bus-if = <0>;
++ channels = <2>;
++ pin-share-ssi = <1>;
++ };
++
++ /* ADSP capture setting for ak4613 */
++ adsp_capture0: adsp,capture {
++ mode = "i2s";
++ clock-mode = "slave";
++ bus-width = <16>;
++ ssi = <1>;
++ bus-if = <0>;
++ channels = <2>;
++ pin-share-ssi = <0>;
++ };
++
++ adsp,ports {
++ port@0 {
++ playback = <&adsp_playback0>;
++ capture = <&adsp_capture0>;
++ };
++ };
++};
++
+ &vspb {
+ status = "okay";
+ };