diff --git a/arch/arm/include/asm/arch-mx6/imx-regs.h b/arch/arm/include/asm/arch-mx6/imx-regs.h
index 48ce0ed..8513406 100644
--- a/arch/arm/include/asm/arch-mx6/imx-regs.h
+++ b/arch/arm/include/asm/arch-mx6/imx-regs.h
@@ -482,10 +482,11 @@
 
 #define src_base ((struct src *)SRC_BASE_ADDR)
 
-#define SRC_SCR_M4_ENABLE_OFFSET                22
-#define SRC_SCR_M4_ENABLE_MASK                  (1 << 22)
-#define SRC_SCR_M4C_NON_SCLR_RST_OFFSET         4
-#define SRC_SCR_M4C_NON_SCLR_RST_MASK           (1 << 4)
+#define SRC_M4_REG_OFFSET		0
+#define SRC_M4_ENABLE_OFFSET		22
+#define SRC_M4_ENABLE_MASK		BIT(22)
+#define SRC_M4C_NON_SCLR_RST_OFFSET	4
+#define SRC_M4C_NON_SCLR_RST_MASK	BIT(4)
 
 /* GPR1 bitfields */
 #define IOMUXC_GPR1_APP_CLK_REQ_N		BIT(30)
diff --git a/arch/arm/include/asm/arch-mx7/imx-regs.h b/arch/arm/include/asm/arch-mx7/imx-regs.h
index f0693f9..a421b9b 100644
--- a/arch/arm/include/asm/arch-mx7/imx-regs.h
+++ b/arch/arm/include/asm/arch-mx7/imx-regs.h
@@ -264,10 +264,12 @@
 	u32 ddrc_rcr;
 };
 
-#define SRC_M4RCR_M4C_NON_SCLR_RST_OFFSET	0
-#define SRC_M4RCR_M4C_NON_SCLR_RST_MASK		(1 << 0)
-#define SRC_M4RCR_ENABLE_M4_OFFSET		3
-#define SRC_M4RCR_ENABLE_M4_MASK		(1 << 3)
+#define SRC_M4_REG_OFFSET		0xC
+#define SRC_M4C_NON_SCLR_RST_OFFSET	0
+#define SRC_M4C_NON_SCLR_RST_MASK	BIT(0)
+#define SRC_M4_ENABLE_OFFSET		3
+#define SRC_M4_ENABLE_MASK		BIT(3)
+
 #define SRC_DDRC_RCR_DDRC_CORE_RST_OFFSET	1
 #define SRC_DDRC_RCR_DDRC_CORE_RST_MASK		(1 << 1)
 
diff --git a/arch/arm/mach-imx/imx_bootaux.c b/arch/arm/mach-imx/imx_bootaux.c
index b62dfbf..0272851 100644
--- a/arch/arm/mach-imx/imx_bootaux.c
+++ b/arch/arm/mach-imx/imx_bootaux.c
@@ -5,21 +5,41 @@
  */
 
 #include <common.h>
+#include <asm/io.h>
 #include <command.h>
 #include <linux/compiler.h>
 
-/* Allow for arch specific config before we boot */
-int __weak arch_auxiliary_core_up(u32 core_id, u32 boot_private_data)
+int arch_auxiliary_core_up(u32 core_id, ulong boot_private_data)
 {
-	/* please define platform specific arch_auxiliary_core_up() */
-	return CMD_RET_FAILURE;
+	ulong stack, pc;
+
+	if (!boot_private_data)
+		return -EINVAL;
+
+	stack = *(ulong *)boot_private_data;
+	pc = *(ulong *)(boot_private_data + 4);
+
+	/* Set the stack and pc to M4 bootROM */
+	writel(stack, M4_BOOTROM_BASE_ADDR);
+	writel(pc, M4_BOOTROM_BASE_ADDR + 4);
+
+	/* Enable M4 */
+	clrsetbits_le32(SRC_BASE_ADDR + SRC_M4_REG_OFFSET,
+			SRC_M4C_NON_SCLR_RST_MASK, SRC_M4_ENABLE_MASK);
+
+	return 0;
 }
 
-/* Allow for arch specific config before we boot */
-int __weak arch_auxiliary_core_check_up(u32 core_id)
+int arch_auxiliary_core_check_up(u32 core_id)
 {
-	/* please define platform specific arch_auxiliary_core_check_up() */
-	return 0;
+	unsigned int val;
+
+	val = readl(SRC_BASE_ADDR + SRC_M4_REG_OFFSET);
+
+	if (val & SRC_M4C_NON_SCLR_RST_MASK)
+		return 0;  /* assert in reset */
+
+	return 1;
 }
 
 /*
diff --git a/arch/arm/mach-imx/mx6/soc.c b/arch/arm/mach-imx/mx6/soc.c
index b3bee58..9b3d8f6 100644
--- a/arch/arm/mach-imx/mx6/soc.c
+++ b/arch/arm/mach-imx/mx6/soc.c
@@ -666,41 +666,3 @@
 		writel(0x007F007F, &iomux->gpr[7]);
 	}
 }
-
-#ifdef CONFIG_IMX_BOOTAUX
-int arch_auxiliary_core_up(u32 core_id, u32 boot_private_data)
-{
-	struct src *src_reg;
-	u32 stack, pc;
-
-	if (!boot_private_data)
-		return -EINVAL;
-
-	stack = *(u32 *)boot_private_data;
-	pc = *(u32 *)(boot_private_data + 4);
-
-	/* Set the stack and pc to M4 bootROM */
-	writel(stack, M4_BOOTROM_BASE_ADDR);
-	writel(pc, M4_BOOTROM_BASE_ADDR + 4);
-
-	/* Enable M4 */
-	src_reg = (struct src *)SRC_BASE_ADDR;
-	clrsetbits_le32(&src_reg->scr, SRC_SCR_M4C_NON_SCLR_RST_MASK,
-			SRC_SCR_M4_ENABLE_MASK);
-
-	return 0;
-}
-
-int arch_auxiliary_core_check_up(u32 core_id)
-{
-	struct src *src_reg = (struct src *)SRC_BASE_ADDR;
-	unsigned val;
-
-	val = readl(&src_reg->scr);
-
-	if (val & SRC_SCR_M4C_NON_SCLR_RST_MASK)
-		return 0;  /* assert in reset */
-
-	return 1;
-}
-#endif
diff --git a/arch/arm/mach-imx/mx7/soc.c b/arch/arm/mach-imx/mx7/soc.c
index 10dec8b..72dbd62 100644
--- a/arch/arm/mach-imx/mx7/soc.c
+++ b/arch/arm/mach-imx/mx7/soc.c
@@ -208,42 +208,6 @@
 }
 #endif
 
-#ifdef CONFIG_IMX_BOOTAUX
-int arch_auxiliary_core_up(u32 core_id, u32 boot_private_data)
-{
-	u32 stack, pc;
-	struct src *src_reg = (struct src *)SRC_BASE_ADDR;
-
-	if (!boot_private_data)
-		return 1;
-
-	stack = *(u32 *)boot_private_data;
-	pc = *(u32 *)(boot_private_data + 4);
-
-	/* Set the stack and pc to M4 bootROM */
-	writel(stack, M4_BOOTROM_BASE_ADDR);
-	writel(pc, M4_BOOTROM_BASE_ADDR + 4);
-
-	/* Enable M4 */
-	clrsetbits_le32(&src_reg->m4rcr, SRC_M4RCR_M4C_NON_SCLR_RST_MASK,
-			SRC_M4RCR_ENABLE_M4_MASK);
-
-	return 0;
-}
-
-int arch_auxiliary_core_check_up(u32 core_id)
-{
-	uint32_t val;
-	struct src *src_reg = (struct src *)SRC_BASE_ADDR;
-
-	val = readl(&src_reg->m4rcr);
-	if (val & 0x00000001)
-		return 0; /* assert in reset */
-
-	return 1;
-}
-#endif
-
 void set_wdog_reset(struct wdog_regs *wdog)
 {
 	u32 reg = readw(&wdog->wcr);