[meta-arago] [meta-processor-sdk 3/5] [PATCH v3] linux-processor-sdk-4.14.inc: add device tree file for pru-adc demo

[Hongmei Gou]

Signed-off-by: Hongmei Gou <***@ti.com>
---
v3 change: add space when appending am335x-boneblack-pru-adc.dtb

.../linux/files/ti33x/am335x-pru-adc.dtsi | 68 ++++++++++++++++++++++
recipes-kernel/linux/linux-processor-sdk-4.14.inc | 20 ++++++-
2 files changed, 87 insertions(+), 1 deletion(-)
create mode 100644 recipes-kernel/linux/files/ti33x/am335x-pru-adc.dtsi

diff --git a/recipes-kernel/linux/files/ti33x/am335x-pru-adc.dtsi b/recipes-kernel/linux/files/ti33x/am335x-pru-adc.dtsi
new file mode 100644
index 0000000..b50c106
--- /dev/null
+++ b/recipes-kernel/linux/files/ti33x/am335x-pru-adc.dtsi
@@ -0,0 +1,68 @@
+&am33xx_pinmux {
+ pru_adc_bone_pins: pru_adc_bone_pins {
+ pinctrl-single,pins = <
+ 0x0a0 0x2e /* MISO_1, lcd_data0, MUX_MODE6 | INPUT, P8.45, PRU1[0] GPI/GPO */
+ 0x0a4 0x2e /* MISO_2, lcd_data1, MUX_MODE6 | INPUT, P8.46, PRU1[1] GPI/GPO */
+ 0x0a8 0x2e /* MISO_3, lcd_data2, MUX_MODE6 | INPUT, P8.43, PRU1[2] GPI/GPO */
+ 0x0ac 0x2e /* MISO_4, lcd_data3, MUX_MODE6 | INPUT, P8.44, PRU1[3] GPI/GPO */
+ 0x0b0 0x2e /* MISO_5, lcd_data4, MUX_MODE6 | INPUT, P8.41, PRU1[4] GPI/GPO */
+ 0x0b4 0x2e /* MISO_6, lcd_data5, MUX_MODE6 | INPUT, P8.42, PRU1[5] GPI/GPO */
+ 0x0b8 0x05 /* CS_12, lcd_data6, MUX_MODE5 | OUTPUT, P8.39, PRU1[6] GPI/GPO */
+ 0x0bc 0x05 /* MOSI_1, lcd_data7, MUX_MODE5 | OUTPUT, P8.40, PRU1[7] GPI/GPO */
+ 0x0e0 0x05 /* MOSI_2, lcd_vsync, MUX_MODE5 | OUTPUT, P8.27, PRU1[8] GPI/GPO */
+ 0x0e4 0x05 /* MOSI_3, lcd_hsync, MUX_MODE5 | OUTPUT, P8.29, PRU1[9] GPI/GPO */
+ 0x0e8 0x05 /* MOSI_4, lcd_pclk, MUX_MODE5 | OUTPUT, P8.28, PRU1[10] GPI/GPO */
+ 0x0ec 0x05 /* MOSI_5, lcd_ac_bias_en, MUX_MODE5 | OUTPUT, P8.30, PRU1[11] GPI/GPO */
+ 0x080 0x05 /* MOSI_6, gpmc_csn1, MUX_MODE5 | OUTPUT, P8.21, PRU1[12] GPI/GPO */
+ 0x084 0x05 /* SCLK_OUT, gpmc_csn2, MUX_MODE5 | OUTPUT, P8.20, PRU1[13] GPI/GPO */
+ 0x038 0x07 /* OE, GPIO1_14, MUX_MODE7 | OUTPUT, P8.16, GPIO1_14 GPIO */
+ >;
+ };
+};
+
+&pruss {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pru_adc_bone_pins>;
+};
+
+/* Reserve 256kB DDR memory for the ping/pong buffers */
+/{
+ reserved-memory {
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges;
+
+ pruadc_reserved: ***@0x9ffc0000 {
+ reg = <0x9ffc0000 0x00040000>;
+ no-map;
+ status = "okay";
+ };
+ };
+
+ hdmi {
+ status = "disabled";
+ };
+};
+
+/* Disable the following nodes due to pin mux conflicts with PRU signals needed */
+&tda19988 {
+ status = "disabled";
+};
+
+&lcdc {
+ status = "disabled";
+};
+
+&mcasp0 {
+ status = "disabled";
+};
+
+&mmc2 {
+ status = "disabled";
+};
+
+/{
+ sound {
+ status = "disabled";
+ };
+};
diff --git a/recipes-kernel/linux/linux-processor-sdk-4.14.inc b/recipes-kernel/linux/linux-processor-sdk-4.14.inc
index de8950b..b1caa68 100644
--- a/recipes-kernel/linux/linux-processor-sdk-4.14.inc
+++ b/recipes-kernel/linux/linux-processor-sdk-4.14.inc
@@ -1,4 +1,4 @@
-PR_append = ".tisdk0"
+PR_append = ".tisdk1"

FILESEXTRAPATHS_prepend := "${THISDIR}/${PN}-4.14:${THISDIR}/files:"

@@ -6,6 +6,8 @@ FILESEXTRAPATHS_prepend := "${THISDIR}/${PN}-4.14:${THISDIR}/files:"

SRC_URI_append = " file://jailhouse.cfg"

+SRC_URI_append_ti33x = " file://am335x-pru-adc.dtsi"
+
KERNEL_CONFIG_FRAGMENTS_append_am57xx-evm = " ${WORKDIR}/jailhouse.cfg"

AM57XX_KERNEL_DEVICETREE = " \
@@ -20,6 +22,22 @@ AM57XX_KERNEL_DEVICETREE = " \
am574x-idk-pps.dtb \
"

+do_setup_adc() {
+:
+}
+
+do_setup_adc_ti33x() {
+ dts="am335x-boneblack-pru-adc.dts"
+ dtsi="am335x-pru-adc.dtsi"
+ cp ${S}/arch/arm/boot/dts/am335x-boneblack.dts ${S}/arch/arm/boot/dts/$dts
+ cp ${WORKDIR}/${dtsi} ${S}/arch/arm/boot/dts/
+ echo "#include \"${dtsi}\"" >> ${S}/arch/arm/boot/dts/$dts
+}
+
+do_patch[postfuncs] += "do_setup_adc"
+
+KERNEL_DEVICETREE_append_ti33x = " am335x-boneblack-pru-adc.dtb"
+
KERNEL_DEVICETREE_append_am57xx-evm = " ${AM57XX_KERNEL_DEVICETREE}"
KERNEL_DEVICETREE_append_am57xx-hs-evm = " ${AM57XX_KERNEL_DEVICETREE}"