[PATCH v1 1/5] configs: verdin-imx8mm: enable RNG support for KASLR

Emanuele Ghidoli ghidoliemanuele at gmail.com
Tue Jul 1 15:44:56 CEST 2025


From: Emanuele Ghidoli <emanuele.ghidoli at toradex.com>

Enable DM_RNG in U-Boot to automatically populate /chosen/kaslr-seed
and enable CAAM to provide entropy.

Signed-off-by: Emanuele Ghidoli <emanuele.ghidoli at toradex.com>
---
 configs/verdin-imx8mm_defconfig | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/configs/verdin-imx8mm_defconfig b/configs/verdin-imx8mm_defconfig
index 7db6e81ee6d1..ea085acd28f7 100644
--- a/configs/verdin-imx8mm_defconfig
+++ b/configs/verdin-imx8mm_defconfig
@@ -76,6 +76,7 @@ CONFIG_CMD_TIME=y
 CONFIG_CMD_UUID=y
 CONFIG_CMD_PMIC=y
 CONFIG_CMD_REGULATOR=y
+# CONFIG_CMD_HASH is not set
 CONFIG_CMD_EXT4_WRITE=y
 # CONFIG_ISO_PARTITION is not set
 # CONFIG_SPL_EFI_PARTITION is not set
@@ -99,6 +100,7 @@ CONFIG_SPL_CLK_COMPOSITE_CCF=y
 CONFIG_CLK_COMPOSITE_CCF=y
 CONFIG_SPL_CLK_IMX8MM=y
 CONFIG_CLK_IMX8MM=y
+CONFIG_FSL_CAAM=y
 CONFIG_USB_FUNCTION_FASTBOOT=y
 CONFIG_FASTBOOT_BUF_ADDR=0x44200000
 CONFIG_FASTBOOT_FLASH=y
@@ -108,7 +110,6 @@ CONFIG_GPIO_HOG=y
 CONFIG_SPL_GPIO_HOG=y
 CONFIG_MXC_GPIO=y
 CONFIG_DM_I2C=y
-CONFIG_MISC=y
 CONFIG_I2C_EEPROM=y
 CONFIG_SUPPORT_EMMC_BOOT=y
 CONFIG_MMC_IO_VOLTAGE=y
@@ -139,6 +140,7 @@ CONFIG_SPL_DM_PMIC_PCA9450=y
 CONFIG_DM_REGULATOR=y
 CONFIG_DM_REGULATOR_FIXED=y
 CONFIG_DM_REGULATOR_GPIO=y
+CONFIG_DM_RNG=y
 CONFIG_DM_SERIAL=y
 CONFIG_MXC_UART=y
 CONFIG_SYSRESET=y
@@ -161,4 +163,5 @@ CONFIG_CI_UDC=y
 CONFIG_SDP_LOADADDR=0x40400000
 CONFIG_SPL_USB_SDP_SUPPORT=y
 CONFIG_IMX_WATCHDOG=y
+# CONFIG_SPL_SHA_HW_ACCEL is not set
 CONFIG_HEXDUMP=y
-- 
2.43.0



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