diff options
| -rw-r--r-- | arch/arm/cpu/armv8/imx8m/soc.c | 42 | ||||
| -rw-r--r-- | include/configs/imx8mq_evk.h | 2 |
2 files changed, 44 insertions, 0 deletions
diff --git a/arch/arm/cpu/armv8/imx8m/soc.c b/arch/arm/cpu/armv8/imx8m/soc.c index 65c5f9ff65..4bd8ec6386 100644 --- a/arch/arm/cpu/armv8/imx8m/soc.c +++ b/arch/arm/cpu/armv8/imx8m/soc.c @@ -12,6 +12,7 @@ #include <asm/imx-common/boot_mode.h> #include <asm/armv8/mmu.h> #include <errno.h> +#include <fdt_support.h> DECLARE_GLOBAL_DATA_PTR; @@ -365,3 +366,44 @@ void get_board_serial(struct tag_serialnr *serialnr) serialnr->high = 0; } #endif + +#ifdef CONFIG_OF_SYSTEM_SETUP +int ft_system_setup(void *blob, bd_t *bd) +{ + if (get_boot_device() == USB_BOOT) { + const char *nodes_path[] = { + "/dcss@32e00000", + "/hdmi@32c00000", + }; + + int i = 0; + int rc; + int nodeoff; + const char *status = "disabled"; + + for (i = 0; i < ARRAY_SIZE(nodes_path); i++) { + nodeoff = fdt_path_offset(blob, nodes_path[i]); + if (nodeoff < 0) + continue; /* Not found, skip it */ + + printf("Found %s node\n", nodes_path[i]); + +add_status: + rc = fdt_setprop(blob, nodeoff, "status", status, strlen(status) + 1); + if (rc) { + if (rc == -FDT_ERR_NOSPACE) { + rc = fdt_increase_size(blob, 512); + if (!rc) + goto add_status; + } + printf("Unable to update property %s:%s, err=%s\n", + nodes_path[i], "status", fdt_strerror(rc)); + } else { + printf("Modify %s:%s disabled\n", + nodes_path[i], "status"); + } + } + } + return 0; +} +#endif diff --git a/include/configs/imx8mq_evk.h b/include/configs/imx8mq_evk.h index fe8d775173..9dfba26b07 100644 --- a/include/configs/imx8mq_evk.h +++ b/include/configs/imx8mq_evk.h @@ -271,6 +271,8 @@ #define CONFIG_CMD_EXT2 #endif +#define CONFIG_OF_SYSTEM_SETUP + #if defined(CONFIG_ANDROID_SUPPORT) #include "imx8mq_evk_android.h" #endif |