diff --git a/arch/x86/cpu/apollolake/cpu_common.c b/arch/x86/cpu/apollolake/cpu_common.c
index 63f6999b02..5d7d26b140 100644
--- a/arch/x86/cpu/apollolake/cpu_common.c
+++ b/arch/x86/cpu/apollolake/cpu_common.c
@@ -7,11 +7,17 @@
 #include <dm.h>
 #include <log.h>
 #include <asm/cpu_common.h>
+#include <asm/io.h>
 #include <asm/msr.h>
+#include <asm/pci.h>
 #include <asm/arch/cpu.h>
 #include <asm/arch/iomap.h>
+#include <asm/arch/uart.h>
 #include <power/acpi_pmc.h>
 
+/* Define this here to avoid referencing any drivers for the debug UART 1 */
+#define PCH_DEV_P2SB	PCI_BDF(0, 0x0d, 0)
+
 void cpu_flush_l1d_to_l2(void)
 {
 	struct msr_t msr;
@@ -40,3 +46,57 @@ void enable_pm_timer_emulation(const struct udevice *pmc)
 	debug("PM timer %x %x\n", msr.hi, msr.lo);
 	msr_write(MSR_EMULATE_PM_TIMER, msr);
 }
+
+static void pch_uart_init(void)
+{
+	/*
+	 * Set up the pinmux so that the UART rx/tx signals are connected
+	 * outside the SoC.
+	 *
+	 * There are about 500 lines of code required to program the GPIO
+	 * configuration for the UARTs. But it boils down to four writes, and
+	 * for the debug UART we want the minimum possible amount of code before
+	 * the UART is running. So just add the magic writes here. See
+	 * apl_hostbridge_early_init_pinctrl() for the full horror.
+	 */
+	if (PCI_FUNC(PCH_DEV_UART) == 1) {
+		writel(0x40000402, 0xd0c50650);
+		writel(0x3c47, 0xd0c50654);
+		writel(0x40000400, 0xd0c50658);
+		writel(0x3c48, 0xd0c5065c);
+	} else { /* UART2 */
+		writel(0x40000402, 0xd0c50670);
+		writel(0x3c4b, 0xd0c50674);
+		writel(0x40000400, 0xd0c50678);
+		writel(0x3c4c, 0xd0c5067c);
+	}
+
+#ifdef CONFIG_DEBUG_UART
+	apl_uart_init(PCH_DEV_UART, CONFIG_DEBUG_UART_BASE);
+#endif
+}
+
+static void p2sb_enable_bar(ulong bar)
+{
+	/* Enable PCR Base address in PCH */
+	pci_x86_write_config(PCH_DEV_P2SB, PCI_BASE_ADDRESS_0, bar,
+			     PCI_SIZE_32);
+	pci_x86_write_config(PCH_DEV_P2SB, PCI_BASE_ADDRESS_1, 0, PCI_SIZE_32);
+
+	/* Enable P2SB MSE */
+	pci_x86_write_config(PCH_DEV_P2SB, PCI_COMMAND,
+			     PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY,
+			     PCI_SIZE_8);
+}
+
+/*
+ * board_debug_uart_init() - Init the debug UART ready for use
+ *
+ * This is the minimum init needed to get the UART running. It avoids any
+ * drivers or complex code, so that the UART is running as soon as possible.
+ */
+void board_debug_uart_init(void)
+{
+	p2sb_enable_bar(IOMAP_P2SB_BAR);
+	pch_uart_init();
+}
diff --git a/arch/x86/cpu/apollolake/cpu_spl.c b/arch/x86/cpu/apollolake/cpu_spl.c
index 9a18476b22..8f48457ee2 100644
--- a/arch/x86/cpu/apollolake/cpu_spl.c
+++ b/arch/x86/cpu/apollolake/cpu_spl.c
@@ -31,68 +31,10 @@
 #include <asm/arch/lpc.h>
 #include <asm/arch/pch.h>
 #include <asm/arch/systemagent.h>
-#include <asm/arch/uart.h>
 #include <asm/fsp2/fsp_api.h>
 #include <linux/sizes.h>
 #include <power/acpi_pmc.h>
 
-/* Define this here to avoid referencing any drivers for the debug UART 1 */
-#define PCH_DEV_P2SB	PCI_BDF(0, 0x0d, 0)
-
-static void pch_uart_init(void)
-{
-	/*
-	 * Set up the pinmux so that the UART rx/tx signals are connected
-	 * outside the SoC.
-	 *
-	 * There are about 500 lines of code required to program the GPIO
-	 * configuration for the UARTs. But it boils down to four writes, and
-	 * for the debug UART we want the minimum possible amount of code before
-	 * the UART is running. So just add the magic writes here. See
-	 * apl_hostbridge_early_init_pinctrl() for the full horror.
-	 */
-	if (PCI_FUNC(PCH_DEV_UART) == 1) {
-		writel(0x40000402, 0xd0c50650);
-		writel(0x3c47, 0xd0c50654);
-		writel(0x40000400, 0xd0c50658);
-		writel(0x3c48, 0xd0c5065c);
-	} else { /* UART2 */
-		writel(0x40000402, 0xd0c50670);
-		writel(0x3c4b, 0xd0c50674);
-		writel(0x40000400, 0xd0c50678);
-		writel(0x3c4c, 0xd0c5067c);
-	}
-
-#ifdef CONFIG_DEBUG_UART
-	apl_uart_init(PCH_DEV_UART, CONFIG_DEBUG_UART_BASE);
-#endif
-}
-
-static void p2sb_enable_bar(ulong bar)
-{
-	/* Enable PCR Base address in PCH */
-	pci_x86_write_config(PCH_DEV_P2SB, PCI_BASE_ADDRESS_0, bar,
-			     PCI_SIZE_32);
-	pci_x86_write_config(PCH_DEV_P2SB, PCI_BASE_ADDRESS_1, 0, PCI_SIZE_32);
-
-	/* Enable P2SB MSE */
-	pci_x86_write_config(PCH_DEV_P2SB, PCI_COMMAND,
-			     PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY,
-			     PCI_SIZE_8);
-}
-
-/*
- * board_debug_uart_init() - Init the debug UART ready for use
- *
- * This is the minimum init needed to get the UART running. It avoids any
- * drivers or complex code, so that the UART is running as soon as possible.
- */
-void board_debug_uart_init(void)
-{
-	p2sb_enable_bar(IOMAP_P2SB_BAR);
-	pch_uart_init();
-}
-
 static int fast_spi_cache_bios_region(void)
 {
 	uint map_size, offset;
diff --git a/arch/x86/cpu/start_from_spl.S b/arch/x86/cpu/start_from_spl.S
index 905c825cdc..abfd4abb62 100644
--- a/arch/x86/cpu/start_from_spl.S
+++ b/arch/x86/cpu/start_from_spl.S
@@ -43,6 +43,10 @@ use_existing_stack:
 
 	call	board_init_f_init_reserve
 
+#ifdef CONFIG_DEBUG_UART
+	call	debug_uart_init
+#endif
+
 	call	x86_cpu_reinit_f
 	xorl	%eax, %eax
 	call	board_init_f
diff --git a/arch/x86/include/asm/arch-apollolake/uart.h b/arch/x86/include/asm/arch-apollolake/uart.h
index 38335b0490..c3ca171b83 100644
--- a/arch/x86/include/asm/arch-apollolake/uart.h
+++ b/arch/x86/include/asm/arch-apollolake/uart.h
@@ -6,6 +6,7 @@
 #ifndef _ASM_ARCH_UART_H
 #define _ASM_ARCH_UART_H
 
+#include <dt-structs.h>
 #include <ns16550.h>
 
 /**