leandrof/u-boot
1
0
Fork 1
Code Issues Pull Requests Packages Projects Releases Wiki Activity

imx: kontron-sl-mx8mm: Prepare for I2C display detection in environment script

Browse Source 
Enable the I2C bus and set a env variable for the reset GPIO of the touch
controller. This allows us to probe the panel in a script.

Signed-off-by: Frieder Schrempf <frieder.schrempf@kontron.de>
Reviewed-by: Fabio Estevam <festevam@denx.de>
This commit is contained in:
Frieder Schrempf
2022-08-24 15:59:20 +02:00
committed by Stefano Babic
parent ba30cc2227
commit 5bc21d3869
4 changed files with 31 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

13
arch/arm/dts/imx8mm-kontron-bl-common-u-boot.dtsi
View File

@@ -48,8 +48,17 @@
&i2c2 {
status = "okay";
u-boot,dm-spl;
u-boot,dm-pre-reloc;
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_i2c2>;
};
&iomuxc {
pinctrl_i2c2: i2c2grp {
fsl,pins = <
MX8MM_IOMUXC_I2C2_SCL_I2C2_SCL 0x400001c3
MX8MM_IOMUXC_I2C2_SDA_I2C2_SDA 0x400001c3
>;
};
};
&pinctrl_ecspi1 {

8
arch/arm/dts/imx8mm-kontron-bl-osm-s-u-boot.dtsi
View File

@@ -4,3 +4,11 @@
*/
#include "imx8mm-kontron-bl-common-u-boot.dtsi"
&iomuxc {
pinctrl_touch: touchgrp {
fsl,pins = <
MX8MM_IOMUXC_SAI5_RXD2_GPIO3_IO23 0x19 /* Touch Reset */
>;
};
};

8
arch/arm/dts/imx8mm-kontron-bl-u-boot.dtsi
View File

@@ -4,3 +4,11 @@
*/
#include "imx8mm-kontron-bl-common-u-boot.dtsi"
&iomuxc {
pinctrl_touch: touchgrp {
fsl,pins = <
MX8MM_IOMUXC_SAI1_TXD3_GPIO4_IO15 0x19 /* Touch Reset */
>;
};
};

5
board/kontron/sl-mx8mm/sl-mx8mm.c
View File

@@ -126,8 +126,11 @@ int board_late_init(void)
if (!fdt_node_check_compatible(gd->fdt_blob, 0, "kontron,imx8mm-n802x-som") ||
!fdt_node_check_compatible(gd->fdt_blob, 0, "kontron,imx8mm-osm-s")) {
env_set("som_type", "osm-s");
else
env_set("touch_rst_gpio", "111");
} else {
env_set("som_type", "sl");
env_set("touch_rst_gpio", "87");
}
return 0;
}