diff --git a/boards/novacustom-v540tu/novacustom-v540tu.config b/boards/novacustom-v540tu/novacustom-v540tu.config
index a4935210..7938254f 100644
--- a/boards/novacustom-v540tu/novacustom-v540tu.config
+++ b/boards/novacustom-v540tu/novacustom-v540tu.config
@@ -2,7 +2,7 @@
 
 export CONFIG_COREBOOT=y
 export CONFIG_COREBOOT_VERSION=dasharo
-export CONFIG_LINUX_VERSION=6.1.8
+export CONFIG_LINUX_VERSION=6.11.9
 
 CONFIG_COREBOOT_CONFIG=config/coreboot-novacustom-v540tu.config
 CONFIG_LINUX_CONFIG=config/linux-nitropad-x.config
diff --git a/modules/linux b/modules/linux
index 416d2b8d..464130f9 100644
--- a/modules/linux
+++ b/modules/linux
@@ -34,6 +34,9 @@ linux_hash := 40f014d53e81f204f6d2a364aae4201ae07970dd1b70dc602d7c66c1a140f558
 else ifeq "$(CONFIG_LINUX_VERSION)" "6.1.8"
 linux_version := 6.1.8
 linux_hash := b60bb53ab8ba370a270454b11e93d41af29126fc72bd6ede517673e2e57b816d
+else ifeq "$(CONFIG_LINUX_VERSION)" "6.11.9"
+linux_version := 6.11.9
+linux_hash := 75658a7aa3bd9598c96ee1e5862c5e1d34fced75c28d825c727a1510a6f384b4
 else
 $(error "$(BOARD): does not specify linux kernel version under CONFIG_LINUX_VERSION")
 endif 
@@ -280,7 +283,7 @@ linux.save_in_versioned_defconfig_format:
 
 # This one can be used in kernel version bump, which will accept all new defconfig options for the new version.
 #  PLEASE VERIFY CHANGES AND KEEP THINGS MINIMAL IN PRs.
-linux.save_in_oldconfig_format_in_place:
+linux.save_in_olddefconfig_format_in_place:
 	mkdir -p "$(build)/$(linux_dir)" \
 	&& cp "$(pwd)/$(linux_kconfig)" "$(build)/$(linux_dir)/.config" \
 	&& $(MAKE) -C "$(build)/$(linux_base_dir)" \
diff --git a/patches/linux-6.11.9/0001-fake-acpi.patch b/patches/linux-6.11.9/0001-fake-acpi.patch
new file mode 100644
index 00000000..0c8b3b54
--- /dev/null
+++ b/patches/linux-6.11.9/0001-fake-acpi.patch
@@ -0,0 +1,32 @@
+diff --recursive -u ./clean/linux-4.9.80/drivers/acpi/acpica/evxfevnt.c linux-4.9.80/drivers/acpi/acpica/evxfevnt.c
+--- ./clean/linux-4.9.80/drivers/acpi/acpica/evxfevnt.c	2018-02-03 11:05:43.000000000 -0500
++++ linux-4.9.80/drivers/acpi/acpica/evxfevnt.c	2018-02-07 15:51:28.786502597 -0500
+@@ -111,6 +111,8 @@
+ 	}
+ 
+ 	ACPI_ERROR((AE_INFO, "Hardware did not enter ACPI mode"));
++printk("%s:%d faking ACPI mode\n", __func__, __LINE__);
++	return_ACPI_STATUS(AE_OK);
+ 	return_ACPI_STATUS(AE_NO_HARDWARE_RESPONSE);
+ }
+ 
+diff --recursive -u ./clean/linux-4.9.80/drivers/acpi/acpica/hwacpi.c linux-4.9.80/drivers/acpi/acpica/hwacpi.c
+--- ./clean/linux-4.9.80/drivers/acpi/acpica/hwacpi.c	2018-02-03 11:05:43.000000000 -0500
++++ linux-4.9.80/drivers/acpi/acpica/hwacpi.c	2018-02-07 15:51:35.126557868 -0500
+@@ -168,12 +168,16 @@
+ 
+ 	status = acpi_read_bit_register(ACPI_BITREG_SCI_ENABLE, &value);
+ 	if (ACPI_FAILURE(status)) {
++printk("%s:%d faking ACPI mode\n", __func__, __LINE__);
++		return_UINT32(ACPI_SYS_MODE_ACPI);
+ 		return_UINT32(ACPI_SYS_MODE_LEGACY);
+ 	}
+ 
+ 	if (value) {
+ 		return_UINT32(ACPI_SYS_MODE_ACPI);
+ 	} else {
++//printk("%s:%d faking ACPI mode\n", __func__, __LINE__);
++//		return_UINT32(ACPI_SYS_MODE_ACPI);
+ 		return_UINT32(ACPI_SYS_MODE_LEGACY);
+ 	}
+ }
diff --git a/patches/linux-6.11.9/0010-winterfell-ahci.patch b/patches/linux-6.11.9/0010-winterfell-ahci.patch
new file mode 100644
index 00000000..7f241773
--- /dev/null
+++ b/patches/linux-6.11.9/0010-winterfell-ahci.patch
@@ -0,0 +1,18 @@
+diff --recursive -u ./clean/linux-4.9.80/drivers/ata/libahci.c linux-4.9.80/drivers/ata/libahci.c
+--- ./clean/linux-4.9.80/drivers/ata/libahci.c	2018-02-03 11:05:43.000000000 -0500
++++ linux-4.9.80/drivers/ata/libahci.c	2018-02-07 18:02:32.526535910 -0500
+@@ -537,8 +537,12 @@
+ 	}
+ 
+ 	/* fabricate port_map from cap.nr_ports for < AHCI 1.3 */
+-	if (!port_map && vers < 0x10300) {
+-		port_map = (1 << ahci_nr_ports(cap)) - 1;
++	if (!port_map) { //  && vers < 0x10300) {
++		printk("%s: saved_port=%02x\n", __func__, hpriv->saved_port_map);
++		writel(0x1, mmio + HOST_PORTS_IMPL);
++		port_map = readl(mmio + HOST_PORTS_IMPL);
++
++		//port_map = (1 << ahci_nr_ports(cap)) - 1;
+ 		dev_warn(dev, "forcing PORTS_IMPL to 0x%lx\n", port_map);
+ 
+ 		/* write the fixed up value to the PI register */