diff --git a/board/czechlight/clearfog/linux.fragment b/board/czechlight/clearfog/linux.fragment
index 744e96d..71cd8bd 100644
--- a/board/czechlight/clearfog/linux.fragment
+++ b/board/czechlight/clearfog/linux.fragment
@@ -1,3 +1,6 @@
+# enable 1GB of RAM, not just 750 MB
+CONFIG_HIGHMEM=y
+
 # this is a part of the Clearfog Base carrier
 CONFIG_SENSORS_MCP3021=y
 
diff --git a/board/czechlight/clearfog/patches/linux.patch b/board/czechlight/clearfog/patches/linux.patch
index 62b40b0..b5ab6b3 100644
--- a/board/czechlight/clearfog/patches/linux.patch
+++ b/board/czechlight/clearfog/patches/linux.patch
@@ -130,7 +130,7 @@
  	data->ngpio = ngpio;
  
 diff --git a/drivers/spi/spi-orion.c b/drivers/spi/spi-orion.c
-index c7266ef295fd..576bce155456 100644
+index 1f59beb7d27e..afbcc92dcaf8 100644
 --- a/drivers/spi/spi-orion.c
 +++ b/drivers/spi/spi-orion.c
 @@ -88,10 +88,6 @@ struct orion_direct_acc {
@@ -171,7 +171,7 @@
  
  	if (vaddr && xfer->tx_buf && word_len == 8) {
  		unsigned int cnt = count / 4;
-@@ -682,7 +678,6 @@ static int orion_spi_probe(struct platform_device *pdev)
+@@ -681,7 +677,6 @@ static int orion_spi_probe(struct platform_device *pdev)
  	}
  
  	for_each_available_child_of_node(pdev->dev.of_node, np) {
@@ -179,7 +179,7 @@
  		u32 cs;
  		int cs_gpio;
  
-@@ -750,13 +745,14 @@ static int orion_spi_probe(struct platform_device *pdev)
+@@ -749,13 +744,14 @@ static int orion_spi_probe(struct platform_device *pdev)
  		 * This needs to get extended for the direct SPI-NOR / SPI-NAND
  		 * support, once this gets implemented.
  		 */
diff --git a/configs/czechlight_beaglebone_defconfig b/configs/czechlight_beaglebone_defconfig
index d43a1ab..8b859d3 100644
--- a/configs/czechlight_beaglebone_defconfig
+++ b/configs/czechlight_beaglebone_defconfig
@@ -22,7 +22,7 @@
 BR2_ROOTFS_POST_SCRIPT_ARGS="-c $(BR2_EXTERNAL_CZECHLIGHT_PATH)/board/czechlight/beaglebone/genimage.cfg"
 BR2_LINUX_KERNEL=y
 BR2_LINUX_KERNEL_CUSTOM_VERSION=y
-BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="5.5.8"
+BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="5.6.7"
 BR2_LINUX_KERNEL_DEFCONFIG="omap2plus"
 BR2_LINUX_KERNEL_CONFIG_FRAGMENT_FILES="$(BR2_EXTERNAL_CZECHLIGHT_PATH)/board/czechlight/common/linux.fragment $(BR2_EXTERNAL_CZECHLIGHT_PATH)/board/czechlight/beaglebone/linux.fragment"
 BR2_LINUX_KERNEL_DTS_SUPPORT=y
diff --git a/configs/czechlight_clearfog_defconfig b/configs/czechlight_clearfog_defconfig
index 9ae3715..f68fd78 100644
--- a/configs/czechlight_clearfog_defconfig
+++ b/configs/czechlight_clearfog_defconfig
@@ -25,7 +25,7 @@
 BR2_ROOTFS_POST_SCRIPT_ARGS="-c $(BR2_EXTERNAL_CZECHLIGHT_PATH)/board/czechlight/clearfog/genimage.cfg"
 BR2_LINUX_KERNEL=y
 BR2_LINUX_KERNEL_CUSTOM_VERSION=y
-BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="5.5.8"
+BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="5.6.7"
 BR2_LINUX_KERNEL_PATCH="$(BR2_EXTERNAL_CZECHLIGHT_PATH)/board/czechlight/clearfog/patches/linux.patch"
 BR2_LINUX_KERNEL_DEFCONFIG="mvebu_v7"
 BR2_LINUX_KERNEL_CONFIG_FRAGMENT_FILES="$(BR2_EXTERNAL_CZECHLIGHT_PATH)/board/czechlight/clearfog/linux.fragment $(BR2_EXTERNAL_CZECHLIGHT_PATH)/board/czechlight/common/linux.fragment"