diff --git a/arch/mips/mach-mscc/Kconfig b/arch/mips/mach-mscc/Kconfig
index fc6aa03..80e4b44 100644
--- a/arch/mips/mach-mscc/Kconfig
+++ b/arch/mips/mach-mscc/Kconfig
@@ -40,6 +40,13 @@
 	help
 	  This supports MSCC Jaguar2 family of SOCs.
 
+config SOC_SERVALT
+	bool "Servalt SOC Family"
+	select SOC_VCOREIII
+	select MSCC_BB_SPI
+	help
+	  This supports MSCC Servalt family of SOCs.
+
 endchoice
 
 config SYS_CONFIG_NAME
@@ -74,4 +81,5 @@
 
 source "board/mscc/jr2/Kconfig"
 
+source "board/mscc/servalt/Kconfig"
 endmenu
diff --git a/arch/mips/mach-mscc/cpu.c b/arch/mips/mach-mscc/cpu.c
index 4729b7a..1bfd636 100644
--- a/arch/mips/mach-mscc/cpu.c
+++ b/arch/mips/mach-mscc/cpu.c
@@ -91,7 +91,7 @@
 	writel(ICPU_SPI_MST_CFG_CS_DESELECT_TIME(0x19) +
 	       ICPU_SPI_MST_CFG_CLK_DIV(9), BASE_CFG + ICPU_SPI_MST_CFG);
 #endif
-#ifdef CONFIG_SOC_JR2
+#if defined(CONFIG_SOC_JR2) || defined(CONFIG_SOC_SERVALT)
 	writel(ICPU_SPI_MST_CFG_FAST_READ_ENA +
 	       ICPU_SPI_MST_CFG_CS_DESELECT_TIME(0x19) +
 	       ICPU_SPI_MST_CFG_CLK_DIV(14), BASE_CFG + ICPU_SPI_MST_CFG);
diff --git a/arch/mips/mach-mscc/dram.c b/arch/mips/mach-mscc/dram.c
index 8002e07..2073821 100644
--- a/arch/mips/mach-mscc/dram.c
+++ b/arch/mips/mach-mscc/dram.c
@@ -19,7 +19,8 @@
 
 	ret = hal_vcoreiii_train_bytelane(0);
 
-#if defined(CONFIG_SOC_OCELOT) || defined(CONFIG_SOC_JR2)
+#if defined(CONFIG_SOC_OCELOT) || defined(CONFIG_SOC_JR2) || \
+	defined(CONFIG_SOC_SERVALT)
 	if (ret)
 		return ret;
 	ret = hal_vcoreiii_train_bytelane(1);
diff --git a/arch/mips/mach-mscc/include/mach/common.h b/arch/mips/mach-mscc/include/mach/common.h
index b9e0939..97b3f82 100644
--- a/arch/mips/mach-mscc/include/mach/common.h
+++ b/arch/mips/mach-mscc/include/mach/common.h
@@ -21,6 +21,11 @@
 #include <mach/jr2/jr2_devcpu_gcb.h>
 #include <mach/jr2/jr2_devcpu_gcb_miim_regs.h>
 #include <mach/jr2/jr2_icpu_cfg.h>
+#elif defined(CONFIG_SOC_SERVALT)
+#include <mach/servalt/servalt.h>
+#include <mach/servalt/servalt_devcpu_gcb.h>
+#include <mach/servalt/servalt_devcpu_gcb_miim_regs.h>
+#include <mach/servalt/servalt_icpu_cfg.h>
 #else
 #error Unsupported platform
 #endif
diff --git a/arch/mips/mach-mscc/include/mach/ddr.h b/arch/mips/mach-mscc/include/mach/ddr.h
index 7552acb..ff32f22 100644
--- a/arch/mips/mach-mscc/include/mach/ddr.h
+++ b/arch/mips/mach-mscc/include/mach/ddr.h
@@ -161,7 +161,8 @@
 
 #endif
 
-#if defined(CONFIG_SOC_OCELOT) || defined(CONFIG_SOC_JR2)
+#if defined(CONFIG_SOC_OCELOT) || defined(CONFIG_SOC_JR2) || \
+	defined(CONFIG_SOC_SERVALT)
 #define MIPS_VCOREIII_MEMORY_16BIT 1
 #endif
 
@@ -239,7 +240,8 @@
 	ICPU_MEMCTRL_CFG_MSB_ROW_ADDR(VC3_MPAR_row_addr_cnt - 1) |	\
 	ICPU_MEMCTRL_CFG_MSB_COL_ADDR(VC3_MPAR_col_addr_cnt - 1)
 
-#if defined(CONFIG_SOC_OCELOT) || defined(CONFIG_SOC_JR2)
+#if defined(CONFIG_SOC_OCELOT) || defined(CONFIG_SOC_JR2) || \
+	defined(CONFIG_SOC_SERVALT)
 #define MSCC_MEMPARM_PERIOD					\
 	ICPU_MEMCTRL_REF_PERIOD_MAX_PEND_REF(8) |		\
 	ICPU_MEMCTRL_REF_PERIOD_REF_PERIOD(VC3_MPAR_tREFI)
@@ -378,7 +380,8 @@
 	PAUSE();
 }
 
-#if defined(CONFIG_SOC_OCELOT) || defined(CONFIG_SOC_JR2)
+#if defined(CONFIG_SOC_OCELOT) || defined(CONFIG_SOC_JR2) || \
+	defined(CONFIG_SOC_SERVALT)
 static u8 training_data[] = { 0xfe, 0x11, 0x33, 0x55, 0x77, 0x99, 0xbb, 0xdd };
 
 static inline void sleep_100ns(u32 val)
@@ -449,7 +452,7 @@
 
 	panic("DDR init failed\n");
 }
-#else				/* JR2 */
+#else				/* JR2 || ServalT */
 static inline void hal_vcoreiii_ddr_reset_assert(void)
 {
 	/* Ensure the memory controller physical iface is forced reset */
@@ -759,7 +762,8 @@
 	/* Wait for ZCAL to clear */
 	while (readl(BASE_CFG + ICPU_MEMPHY_ZCAL) & ICPU_MEMPHY_ZCAL_ZCAL_ENA)
 		;
-#if defined(CONFIG_SOC_OCELOT) || defined(CONFIG_SOC_JR2)
+#if defined(CONFIG_SOC_OCELOT) || defined(CONFIG_SOC_JR2) || \
+	defined(CONFIG_SOC_SERVALT)
 	/* Check no ZCAL_ERR */
 	if (readl(BASE_CFG + ICPU_MEMPHY_ZCAL_STAT)
 	    & ICPU_MEMPHY_ZCAL_STAT_ZCAL_ERR)
@@ -773,7 +777,8 @@
 	writel(MSCC_MEMPARM_MEMCFG, BASE_CFG + ICPU_MEMCTRL_CFG);
 	writel(MSCC_MEMPARM_PERIOD, BASE_CFG + ICPU_MEMCTRL_REF_PERIOD);
 
-#if defined(CONFIG_SOC_OCELOT) || defined(CONFIG_SOC_JR2)
+#if defined(CONFIG_SOC_OCELOT) || defined(CONFIG_SOC_JR2) || \
+	defined(CONFIG_SOC_SERVALT)
 	writel(MSCC_MEMPARM_TIMING0, BASE_CFG + ICPU_MEMCTRL_TIMING0);
 #else /* Luton */
 	clrbits_le32(BASE_CFG + ICPU_MEMCTRL_TIMING0, ((1 << 20) - 1));
@@ -799,7 +804,7 @@
 	hal_vcoreiii_ddr_reset_release();
 
 	writel(readl(BASE_CFG + ICPU_GPR(7)) + 1, BASE_CFG + ICPU_GPR(7));
-#elif defined(CONFIG_SOC_JR2)
+#elif defined(CONFIG_SOC_JR2) || defined(CONFIG_SOC_SERVALT)
 	writel(ICPU_MEMCTRL_TERMRES_CTRL_ODT_WR_ENA(3),
 	       BASE_CFG + ICPU_MEMCTRL_TERMRES_CTRL);
 #else				/* Luton */
@@ -820,7 +825,8 @@
 
 	/* Settle...? */
 	sleep_100ns(10000);
-#if defined(CONFIG_SOC_OCELOT) || defined(CONFIG_SOC_JR2)
+#if defined(CONFIG_SOC_OCELOT) || defined(CONFIG_SOC_JR2) || \
+	defined(CONFIG_SOC_SERVALT)
 	/* Establish data contents in DDR RAM for training */
 
 	__raw_writel(0xcacafefe, ((void __iomem *)MSCC_DDR_TO));
diff --git a/arch/mips/mach-mscc/include/mach/servalt/servalt.h b/arch/mips/mach-mscc/include/mach/servalt/servalt.h
new file mode 100644
index 0000000..9015bc7
--- /dev/null
+++ b/arch/mips/mach-mscc/include/mach/servalt/servalt.h
@@ -0,0 +1,24 @@
+/* SPDX-License-Identifier: (GPL-2.0+ OR MIT) */
+/*
+ * Microsemi Servalt Switch driver
+ *
+ * Copyright (c) 2018 Microsemi Corporation
+ */
+
+#ifndef _MSCC_SERVALT_H_
+#define _MSCC_SERVALT_H_
+
+#include <linux/bitops.h>
+#include <dm.h>
+
+/*
+ * Target offset base(s)
+ */
+#define MSCC_IO_ORIGIN1_OFFSET 0x70000000
+#define MSCC_IO_ORIGIN1_SIZE   0x00200000
+#define MSCC_IO_ORIGIN2_OFFSET 0x71000000
+#define MSCC_IO_ORIGIN2_SIZE   0x01000000
+#define BASE_CFG        ((void __iomem *)0x70000000)
+#define BASE_DEVCPU_GCB ((void __iomem *)0x71010000)
+
+#endif
diff --git a/arch/mips/mach-mscc/include/mach/servalt/servalt_devcpu_gcb.h b/arch/mips/mach-mscc/include/mach/servalt/servalt_devcpu_gcb.h
new file mode 100644
index 0000000..f6e7245
--- /dev/null
+++ b/arch/mips/mach-mscc/include/mach/servalt/servalt_devcpu_gcb.h
@@ -0,0 +1,20 @@
+/* SPDX-License-Identifier: (GPL-2.0+ OR MIT) */
+/*
+ * Copyright (c) 2018 Microsemi Corporation
+ */
+
+#ifndef _MSCC_SERVALT_DEVCPU_GCB_H_
+#define _MSCC_SERVALT_DEVCPU_GCB_H_
+
+#define PERF_GPR                                          0x4
+
+#define PERF_SOFT_RST                                     0x8
+
+#define PERF_SOFT_RST_SOFT_NON_CFG_RST                    BIT(2)
+#define PERF_SOFT_RST_SOFT_SWC_RST                        BIT(1)
+#define PERF_SOFT_RST_SOFT_CHIP_RST                       BIT(0)
+
+#define GPIO_GPIO_ALT(x)                                  (0x74 + 4 * (x))
+#define GPIO_GPIO_ALT1(x)                                 (0x7c + 4 * (x))
+
+#endif
diff --git a/arch/mips/mach-mscc/include/mach/servalt/servalt_devcpu_gcb_miim_regs.h b/arch/mips/mach-mscc/include/mach/servalt/servalt_devcpu_gcb_miim_regs.h
new file mode 100644
index 0000000..8c67190
--- /dev/null
+++ b/arch/mips/mach-mscc/include/mach/servalt/servalt_devcpu_gcb_miim_regs.h
@@ -0,0 +1,25 @@
+/* SPDX-License-Identifier: (GPL-2.0+ OR MIT) */
+/*
+ * Copyright (c) 2018 Microsemi Corporation
+ */
+
+#ifndef _MSCC_SERVALT_DEVCPU_GCB_MIIM_REGS_H_
+#define _MSCC_SERVALT_DEVCPU_GCB_MIIM_REGS_H_
+
+#define MIIM_MII_STATUS(gi)  (0xc4 + (gi * 36))
+#define MIIM_MII_CMD(gi)     (0xcc + (gi * 36))
+#define MIIM_MII_DATA(gi)    (0xd0 + (gi * 36))
+
+#define  MSCC_F_MII_STATUS_MIIM_STAT_BUSY(x)  ((x) ? BIT(3) : 0)
+
+#define MSCC_F_MII_CMD_MIIM_CMD_VLD(x)        ((x) ? BIT(31) : 0)
+#define MSCC_F_MII_CMD_MIIM_CMD_PHYAD(x)      (GENMASK(29, 25) & ((x) << 25))
+#define MSCC_F_MII_CMD_MIIM_CMD_REGAD(x)      (GENMASK(24, 20) & ((x) << 20))
+#define MSCC_F_MII_CMD_MIIM_CMD_WRDATA(x)     (GENMASK(19, 4) & ((x) << 4))
+#define MSCC_F_MII_CMD_MIIM_CMD_OPR_FIELD(x)  (GENMASK(2, 1) & ((x) << 1))
+#define MSCC_F_MII_CMD_MIIM_CMD_SCAN(x)       ((x) ? BIT(0) : 0)
+
+#define MSCC_M_MII_DATA_MIIM_DATA_SUCCESS     GENMASK(17, 16)
+#define MSCC_X_MII_DATA_MIIM_DATA_RDDATA(x)   (((x) >> 0) & GENMASK(15, 0))
+
+#endif
diff --git a/arch/mips/mach-mscc/include/mach/servalt/servalt_icpu_cfg.h b/arch/mips/mach-mscc/include/mach/servalt/servalt_icpu_cfg.h
new file mode 100644
index 0000000..491ead1
--- /dev/null
+++ b/arch/mips/mach-mscc/include/mach/servalt/servalt_icpu_cfg.h
@@ -0,0 +1,319 @@
+/* SPDX-License-Identifier: (GPL-2.0+ OR MIT) */
+/*
+ * Copyright (c) 2018 Microsemi Corporation
+ */
+
+#ifndef _MSCC_SERVALT_ICPU_CFG_H_
+#define _MSCC_SERVALT_ICPU_CFG_H_
+
+#define ICPU_GPR(x)                                       (0x4 * (x))
+#define ICPU_GPR_RSZ                                      0x8
+
+#define ICPU_RESET                                        0x20
+
+#define ICPU_RESET_CORE_RST_CPU_ONLY                      BIT(3)
+#define ICPU_RESET_CORE_RST_PROTECT                       BIT(2)
+#define ICPU_RESET_CORE_RST_FORCE                         BIT(1)
+#define ICPU_RESET_MEM_RST_FORCE                          BIT(0)
+
+#define ICPU_GENERAL_CTRL                                 0x24
+
+#define ICPU_GENERAL_CTRL_CPU_BUSIF_SLEEP_DIS             BIT(14)
+#define ICPU_GENERAL_CTRL_CPU_BUSIF_WERR_ENA              BIT(13)
+#define ICPU_GENERAL_CTRL_CPU_8051_IROM_ENA               BIT(12)
+#define ICPU_GENERAL_CTRL_CPU_MIPS_DIS                    BIT(11)
+#define ICPU_GENERAL_CTRL_IF_MIIM_SLV_ADDR_SEL            BIT(10)
+#define ICPU_GENERAL_CTRL_IF_MIIM_SLV_ENA                 BIT(9)
+#define ICPU_GENERAL_CTRL_IF_PI_SLV_DONEPOL               BIT(8)
+#define ICPU_GENERAL_CTRL_IF_PI_MST_ENA                   BIT(7)
+#define ICPU_GENERAL_CTRL_IF_PI_SLV_ENA                   BIT(6)
+#define ICPU_GENERAL_CTRL_IF_SI_OWNER(x)                  (((x) << 4) & GENMASK(5, 4))
+#define ICPU_GENERAL_CTRL_IF_SI_OWNER_M                   GENMASK(5, 4)
+#define ICPU_GENERAL_CTRL_IF_SI_OWNER_X(x)                (((x) & GENMASK(5, 4)) >> 4)
+#define ICPU_GENERAL_CTRL_SIMC_SSP_ENA                    BIT(3)
+#define ICPU_GENERAL_CTRL_CPU_BE_ENA                      BIT(2)
+#define ICPU_GENERAL_CTRL_CPU_DIS                         BIT(1)
+#define ICPU_GENERAL_CTRL_BOOT_MODE_ENA                   BIT(0)
+
+#define ICPU_SPI_MST_CFG                                  0x3c
+
+#define ICPU_SPI_MST_CFG_A32B_ENA                         BIT(11)
+#define ICPU_SPI_MST_CFG_FAST_READ_ENA                    BIT(10)
+#define ICPU_SPI_MST_CFG_CS_DESELECT_TIME(x)              (((x) << 5) & GENMASK(9, 5))
+#define ICPU_SPI_MST_CFG_CS_DESELECT_TIME_M               GENMASK(9, 5)
+#define ICPU_SPI_MST_CFG_CS_DESELECT_TIME_X(x)            (((x) & GENMASK(9, 5)) >> 5)
+#define ICPU_SPI_MST_CFG_CLK_DIV(x)                       ((x) & GENMASK(4, 0))
+#define ICPU_SPI_MST_CFG_CLK_DIV_M                        GENMASK(4, 0)
+
+#define ICPU_SW_MODE                                      0x50
+
+#define ICPU_SW_MODE_SW_PIN_CTRL_MODE                     BIT(13)
+#define ICPU_SW_MODE_SW_SPI_SCK                           BIT(12)
+#define ICPU_SW_MODE_SW_SPI_SCK_OE                        BIT(11)
+#define ICPU_SW_MODE_SW_SPI_SDO                           BIT(10)
+#define ICPU_SW_MODE_SW_SPI_SDO_OE                        BIT(9)
+#define ICPU_SW_MODE_SW_SPI_CS(x)                         (((x) << 5) & GENMASK(8, 5))
+#define ICPU_SW_MODE_SW_SPI_CS_M                          GENMASK(8, 5)
+#define ICPU_SW_MODE_SW_SPI_CS_X(x)                       (((x) & GENMASK(8, 5)) >> 5)
+#define ICPU_SW_MODE_SW_SPI_CS_OE(x)                      (((x) << 1) & GENMASK(4, 1))
+#define ICPU_SW_MODE_SW_SPI_CS_OE_M                       GENMASK(4, 1)
+#define ICPU_SW_MODE_SW_SPI_CS_OE_X(x)                    (((x) & GENMASK(4, 1)) >> 1)
+#define ICPU_SW_MODE_SW_SPI_SDI                           BIT(0)
+
+#define ICPU_INTR_ENA                                     0x88
+
+#define ICPU_DST_INTR_MAP(x)                              (0x98 + 0x4 * (x))
+#define ICPU_DST_INTR_MAP_RSZ                             0x4
+
+#define ICPU_TIMER_TICK_DIV                               0xe8
+
+#define ICPU_TIMER_VALUE(x)                               (0xec + 0x4 * (x))
+#define ICPU_TIMER_VALUE_RSZ                              0x2
+
+#define ICPU_TIMER_CTRL(x)                                (0x104 + 0x4 * (x))
+#define ICPU_TIMER_CTRL_RSZ                               0x2
+
+#define ICPU_TIMER_CTRL_MAX_FREQ_ENA                      BIT(3)
+#define ICPU_TIMER_CTRL_ONE_SHOT_ENA                      BIT(2)
+#define ICPU_TIMER_CTRL_TIMER_ENA                         BIT(1)
+#define ICPU_TIMER_CTRL_FORCE_RELOAD                      BIT(0)
+
+#define ICPU_MEMCTRL_CTRL                                 0x110
+
+#define ICPU_MEMCTRL_CTRL_PWR_DOWN                        BIT(3)
+#define ICPU_MEMCTRL_CTRL_MDSET                           BIT(2)
+#define ICPU_MEMCTRL_CTRL_STALL_REF_ENA                   BIT(1)
+#define ICPU_MEMCTRL_CTRL_INITIALIZE                      BIT(0)
+
+#define ICPU_MEMCTRL_CFG                                  0x114
+
+#define ICPU_MEMCTRL_CFG_DDR_512MBYTE_PLUS                BIT(16)
+#define ICPU_MEMCTRL_CFG_DDR_ECC_ERR_ENA                  BIT(15)
+#define ICPU_MEMCTRL_CFG_DDR_ECC_COR_ENA                  BIT(14)
+#define ICPU_MEMCTRL_CFG_DDR_ECC_ENA                      BIT(13)
+#define ICPU_MEMCTRL_CFG_DDR_WIDTH                        BIT(12)
+#define ICPU_MEMCTRL_CFG_DDR_MODE                         BIT(11)
+#define ICPU_MEMCTRL_CFG_BURST_SIZE                       BIT(10)
+#define ICPU_MEMCTRL_CFG_BURST_LEN                        BIT(9)
+#define ICPU_MEMCTRL_CFG_BANK_CNT                         BIT(8)
+#define ICPU_MEMCTRL_CFG_MSB_ROW_ADDR(x)                  (((x) << 4) & GENMASK(7, 4))
+#define ICPU_MEMCTRL_CFG_MSB_ROW_ADDR_M                   GENMASK(7, 4)
+#define ICPU_MEMCTRL_CFG_MSB_ROW_ADDR_X(x)                (((x) & GENMASK(7, 4)) >> 4)
+#define ICPU_MEMCTRL_CFG_MSB_COL_ADDR(x)                  ((x) & GENMASK(3, 0))
+#define ICPU_MEMCTRL_CFG_MSB_COL_ADDR_M                   GENMASK(3, 0)
+
+#define ICPU_MEMCTRL_STAT                                 0x118
+
+#define ICPU_MEMCTRL_STAT_RDATA_MASKED                    BIT(5)
+#define ICPU_MEMCTRL_STAT_RDATA_DUMMY                     BIT(4)
+#define ICPU_MEMCTRL_STAT_RDATA_ECC_ERR                   BIT(3)
+#define ICPU_MEMCTRL_STAT_RDATA_ECC_COR                   BIT(2)
+#define ICPU_MEMCTRL_STAT_PWR_DOWN_ACK                    BIT(1)
+#define ICPU_MEMCTRL_STAT_INIT_DONE                       BIT(0)
+
+#define ICPU_MEMCTRL_REF_PERIOD                           0x11c
+
+#define ICPU_MEMCTRL_REF_PERIOD_MAX_PEND_REF(x)           (((x) << 16) & GENMASK(19, 16))
+#define ICPU_MEMCTRL_REF_PERIOD_MAX_PEND_REF_M            GENMASK(19, 16)
+#define ICPU_MEMCTRL_REF_PERIOD_MAX_PEND_REF_X(x)         (((x) & GENMASK(19, 16)) >> 16)
+#define ICPU_MEMCTRL_REF_PERIOD_REF_PERIOD(x)             ((x) & GENMASK(15, 0))
+#define ICPU_MEMCTRL_REF_PERIOD_REF_PERIOD_M              GENMASK(15, 0)
+
+#define ICPU_MEMCTRL_ZQCAL                                0x120
+
+#define ICPU_MEMCTRL_ZQCAL_ZQCAL_LONG                     BIT(1)
+#define ICPU_MEMCTRL_ZQCAL_ZQCAL_SHORT                    BIT(0)
+
+#define ICPU_MEMCTRL_TIMING0                              0x124
+
+#define ICPU_MEMCTRL_TIMING0_RD_TO_WR_DLY(x)              (((x) << 28) & GENMASK(31, 28))
+#define ICPU_MEMCTRL_TIMING0_RD_TO_WR_DLY_M               GENMASK(31, 28)
+#define ICPU_MEMCTRL_TIMING0_RD_TO_WR_DLY_X(x)            (((x) & GENMASK(31, 28)) >> 28)
+#define ICPU_MEMCTRL_TIMING0_WR_CS_CHANGE_DLY(x)          (((x) << 24) & GENMASK(27, 24))
+#define ICPU_MEMCTRL_TIMING0_WR_CS_CHANGE_DLY_M           GENMASK(27, 24)
+#define ICPU_MEMCTRL_TIMING0_WR_CS_CHANGE_DLY_X(x)        (((x) & GENMASK(27, 24)) >> 24)
+#define ICPU_MEMCTRL_TIMING0_RD_CS_CHANGE_DLY(x)          (((x) << 20) & GENMASK(23, 20))
+#define ICPU_MEMCTRL_TIMING0_RD_CS_CHANGE_DLY_M           GENMASK(23, 20)
+#define ICPU_MEMCTRL_TIMING0_RD_CS_CHANGE_DLY_X(x)        (((x) & GENMASK(23, 20)) >> 20)
+#define ICPU_MEMCTRL_TIMING0_RAS_TO_PRECH_DLY(x)          (((x) << 16) & GENMASK(19, 16))
+#define ICPU_MEMCTRL_TIMING0_RAS_TO_PRECH_DLY_M           GENMASK(19, 16)
+#define ICPU_MEMCTRL_TIMING0_RAS_TO_PRECH_DLY_X(x)        (((x) & GENMASK(19, 16)) >> 16)
+#define ICPU_MEMCTRL_TIMING0_WR_TO_PRECH_DLY(x)           (((x) << 12) & GENMASK(15, 12))
+#define ICPU_MEMCTRL_TIMING0_WR_TO_PRECH_DLY_M            GENMASK(15, 12)
+#define ICPU_MEMCTRL_TIMING0_WR_TO_PRECH_DLY_X(x)         (((x) & GENMASK(15, 12)) >> 12)
+#define ICPU_MEMCTRL_TIMING0_RD_TO_PRECH_DLY(x)           (((x) << 8) & GENMASK(11, 8))
+#define ICPU_MEMCTRL_TIMING0_RD_TO_PRECH_DLY_M            GENMASK(11, 8)
+#define ICPU_MEMCTRL_TIMING0_RD_TO_PRECH_DLY_X(x)         (((x) & GENMASK(11, 8)) >> 8)
+#define ICPU_MEMCTRL_TIMING0_WR_DATA_XFR_DLY(x)           (((x) << 4) & GENMASK(7, 4))
+#define ICPU_MEMCTRL_TIMING0_WR_DATA_XFR_DLY_M            GENMASK(7, 4)
+#define ICPU_MEMCTRL_TIMING0_WR_DATA_XFR_DLY_X(x)         (((x) & GENMASK(7, 4)) >> 4)
+#define ICPU_MEMCTRL_TIMING0_RD_DATA_XFR_DLY(x)           ((x) & GENMASK(3, 0))
+#define ICPU_MEMCTRL_TIMING0_RD_DATA_XFR_DLY_M            GENMASK(3, 0)
+
+#define ICPU_MEMCTRL_TIMING1                              0x128
+
+#define ICPU_MEMCTRL_TIMING1_RAS_TO_RAS_SAME_BANK_DLY(x)  (((x) << 24) & GENMASK(31, 24))
+#define ICPU_MEMCTRL_TIMING1_RAS_TO_RAS_SAME_BANK_DLY_M   GENMASK(31, 24)
+#define ICPU_MEMCTRL_TIMING1_RAS_TO_RAS_SAME_BANK_DLY_X(x) (((x) & GENMASK(31, 24)) >> 24)
+#define ICPU_MEMCTRL_TIMING1_BANK8_FAW_DLY(x)             (((x) << 16) & GENMASK(23, 16))
+#define ICPU_MEMCTRL_TIMING1_BANK8_FAW_DLY_M              GENMASK(23, 16)
+#define ICPU_MEMCTRL_TIMING1_BANK8_FAW_DLY_X(x)           (((x) & GENMASK(23, 16)) >> 16)
+#define ICPU_MEMCTRL_TIMING1_PRECH_TO_RAS_DLY(x)          (((x) << 12) & GENMASK(15, 12))
+#define ICPU_MEMCTRL_TIMING1_PRECH_TO_RAS_DLY_M           GENMASK(15, 12)
+#define ICPU_MEMCTRL_TIMING1_PRECH_TO_RAS_DLY_X(x)        (((x) & GENMASK(15, 12)) >> 12)
+#define ICPU_MEMCTRL_TIMING1_RAS_TO_RAS_DLY(x)            (((x) << 8) & GENMASK(11, 8))
+#define ICPU_MEMCTRL_TIMING1_RAS_TO_RAS_DLY_M             GENMASK(11, 8)
+#define ICPU_MEMCTRL_TIMING1_RAS_TO_RAS_DLY_X(x)          (((x) & GENMASK(11, 8)) >> 8)
+#define ICPU_MEMCTRL_TIMING1_RAS_TO_CAS_DLY(x)            (((x) << 4) & GENMASK(7, 4))
+#define ICPU_MEMCTRL_TIMING1_RAS_TO_CAS_DLY_M             GENMASK(7, 4)
+#define ICPU_MEMCTRL_TIMING1_RAS_TO_CAS_DLY_X(x)          (((x) & GENMASK(7, 4)) >> 4)
+#define ICPU_MEMCTRL_TIMING1_WR_TO_RD_DLY(x)              ((x) & GENMASK(3, 0))
+#define ICPU_MEMCTRL_TIMING1_WR_TO_RD_DLY_M               GENMASK(3, 0)
+
+#define ICPU_MEMCTRL_TIMING2                              0x12c
+
+#define ICPU_MEMCTRL_TIMING2_PRECH_ALL_DLY(x)             (((x) << 28) & GENMASK(31, 28))
+#define ICPU_MEMCTRL_TIMING2_PRECH_ALL_DLY_M              GENMASK(31, 28)
+#define ICPU_MEMCTRL_TIMING2_PRECH_ALL_DLY_X(x)           (((x) & GENMASK(31, 28)) >> 28)
+#define ICPU_MEMCTRL_TIMING2_MDSET_DLY(x)                 (((x) << 24) & GENMASK(27, 24))
+#define ICPU_MEMCTRL_TIMING2_MDSET_DLY_M                  GENMASK(27, 24)
+#define ICPU_MEMCTRL_TIMING2_MDSET_DLY_X(x)               (((x) & GENMASK(27, 24)) >> 24)
+#define ICPU_MEMCTRL_TIMING2_REF_DLY(x)                   (((x) << 16) & GENMASK(23, 16))
+#define ICPU_MEMCTRL_TIMING2_REF_DLY_M                    GENMASK(23, 16)
+#define ICPU_MEMCTRL_TIMING2_REF_DLY_X(x)                 (((x) & GENMASK(23, 16)) >> 16)
+#define ICPU_MEMCTRL_TIMING2_INIT_DLY(x)                  ((x) & GENMASK(15, 0))
+#define ICPU_MEMCTRL_TIMING2_INIT_DLY_M                   GENMASK(15, 0)
+
+#define ICPU_MEMCTRL_TIMING3                              0x130
+
+#define ICPU_MEMCTRL_TIMING3_RMW_DLY(x)                   (((x) << 16) & GENMASK(19, 16))
+#define ICPU_MEMCTRL_TIMING3_RMW_DLY_M                    GENMASK(19, 16)
+#define ICPU_MEMCTRL_TIMING3_RMW_DLY_X(x)                 (((x) & GENMASK(19, 16)) >> 16)
+#define ICPU_MEMCTRL_TIMING3_ODT_RD_DLY(x)                (((x) << 12) & GENMASK(15, 12))
+#define ICPU_MEMCTRL_TIMING3_ODT_RD_DLY_M                 GENMASK(15, 12)
+#define ICPU_MEMCTRL_TIMING3_ODT_RD_DLY_X(x)              (((x) & GENMASK(15, 12)) >> 12)
+#define ICPU_MEMCTRL_TIMING3_ODT_WR_DLY(x)                (((x) << 8) & GENMASK(11, 8))
+#define ICPU_MEMCTRL_TIMING3_ODT_WR_DLY_M                 GENMASK(11, 8)
+#define ICPU_MEMCTRL_TIMING3_ODT_WR_DLY_X(x)              (((x) & GENMASK(11, 8)) >> 8)
+#define ICPU_MEMCTRL_TIMING3_LOCAL_ODT_RD_DLY(x)          (((x) << 4) & GENMASK(7, 4))
+#define ICPU_MEMCTRL_TIMING3_LOCAL_ODT_RD_DLY_M           GENMASK(7, 4)
+#define ICPU_MEMCTRL_TIMING3_LOCAL_ODT_RD_DLY_X(x)        (((x) & GENMASK(7, 4)) >> 4)
+#define ICPU_MEMCTRL_TIMING3_WR_TO_RD_CS_CHANGE_DLY(x)    ((x) & GENMASK(3, 0))
+#define ICPU_MEMCTRL_TIMING3_WR_TO_RD_CS_CHANGE_DLY_M     GENMASK(3, 0)
+
+#define ICPU_MEMCTRL_TIMING4                              0x134
+
+#define ICPU_MEMCTRL_TIMING4_ZQCAL_INIT_DLY(x)            (((x) << 20) & GENMASK(31, 20))
+#define ICPU_MEMCTRL_TIMING4_ZQCAL_INIT_DLY_M             GENMASK(31, 20)
+#define ICPU_MEMCTRL_TIMING4_ZQCAL_INIT_DLY_X(x)          (((x) & GENMASK(31, 20)) >> 20)
+#define ICPU_MEMCTRL_TIMING4_ZQCAL_LONG_DLY(x)            (((x) << 8) & GENMASK(19, 8))
+#define ICPU_MEMCTRL_TIMING4_ZQCAL_LONG_DLY_M             GENMASK(19, 8)
+#define ICPU_MEMCTRL_TIMING4_ZQCAL_LONG_DLY_X(x)          (((x) & GENMASK(19, 8)) >> 8)
+#define ICPU_MEMCTRL_TIMING4_ZQCAL_SHORT_DLY(x)           ((x) & GENMASK(7, 0))
+#define ICPU_MEMCTRL_TIMING4_ZQCAL_SHORT_DLY_M            GENMASK(7, 0)
+
+#define ICPU_MEMCTRL_MR0_VAL                              0x138
+
+#define ICPU_MEMCTRL_MR1_VAL                              0x13c
+
+#define ICPU_MEMCTRL_MR2_VAL                              0x140
+
+#define ICPU_MEMCTRL_MR3_VAL                              0x144
+
+#define ICPU_MEMCTRL_TERMRES_CTRL                         0x148
+
+#define ICPU_MEMCTRL_TERMRES_CTRL_ODT_RD_EXT              BIT(11)
+#define ICPU_MEMCTRL_TERMRES_CTRL_ODT_RD_ENA(x)           (((x) << 7) & GENMASK(10, 7))
+#define ICPU_MEMCTRL_TERMRES_CTRL_ODT_RD_ENA_M            GENMASK(10, 7)
+#define ICPU_MEMCTRL_TERMRES_CTRL_ODT_RD_ENA_X(x)         (((x) & GENMASK(10, 7)) >> 7)
+#define ICPU_MEMCTRL_TERMRES_CTRL_ODT_WR_EXT              BIT(6)
+#define ICPU_MEMCTRL_TERMRES_CTRL_ODT_WR_ENA(x)           (((x) << 2) & GENMASK(5, 2))
+#define ICPU_MEMCTRL_TERMRES_CTRL_ODT_WR_ENA_M            GENMASK(5, 2)
+#define ICPU_MEMCTRL_TERMRES_CTRL_ODT_WR_ENA_X(x)         (((x) & GENMASK(5, 2)) >> 2)
+#define ICPU_MEMCTRL_TERMRES_CTRL_LOCAL_ODT_RD_EXT        BIT(1)
+#define ICPU_MEMCTRL_TERMRES_CTRL_LOCAL_ODT_RD_ENA        BIT(0)
+
+#define ICPU_MEMCTRL_DFT                                  0x14c
+
+#define ICPU_MEMCTRL_DFT_DDRDFT_LBW                       BIT(7)
+#define ICPU_MEMCTRL_DFT_DDRDFT_GATE_ENA                  BIT(6)
+#define ICPU_MEMCTRL_DFT_DDRDFT_TERM_ENA                  BIT(5)
+#define ICPU_MEMCTRL_DFT_DDRDFT_A10                       BIT(4)
+#define ICPU_MEMCTRL_DFT_DDRDFT_STAT                      BIT(3)
+#define ICPU_MEMCTRL_DFT_DDRDFT_MODE(x)                   (((x) << 1) & GENMASK(2, 1))
+#define ICPU_MEMCTRL_DFT_DDRDFT_MODE_M                    GENMASK(2, 1)
+#define ICPU_MEMCTRL_DFT_DDRDFT_MODE_X(x)                 (((x) & GENMASK(2, 1)) >> 1)
+#define ICPU_MEMCTRL_DFT_DDRDFT_ENA                       BIT(0)
+
+#define ICPU_MEMCTRL_DQS_DLY(x)                           (0x150 + 0x4 * (x))
+#define ICPU_MEMCTRL_DQS_DLY_RSZ                          0x2
+
+#define ICPU_MEMCTRL_DQS_DLY_TRAIN_DQ_ENA                 BIT(11)
+#define ICPU_MEMCTRL_DQS_DLY_DQS_DLY_TRM1(x)              (((x) << 8) & GENMASK(10, 8))
+#define ICPU_MEMCTRL_DQS_DLY_DQS_DLY_TRM1_M               GENMASK(10, 8)
+#define ICPU_MEMCTRL_DQS_DLY_DQS_DLY_TRM1_X(x)            (((x) & GENMASK(10, 8)) >> 8)
+#define ICPU_MEMCTRL_DQS_DLY_DQS_DLY_TRM0(x)              (((x) << 5) & GENMASK(7, 5))
+#define ICPU_MEMCTRL_DQS_DLY_DQS_DLY_TRM0_M               GENMASK(7, 5)
+#define ICPU_MEMCTRL_DQS_DLY_DQS_DLY_TRM0_X(x)            (((x) & GENMASK(7, 5)) >> 5)
+#define ICPU_MEMCTRL_DQS_DLY_DQS_DLY(x)                   ((x) & GENMASK(4, 0))
+#define ICPU_MEMCTRL_DQS_DLY_DQS_DLY_M                    GENMASK(4, 0)
+
+#define ICPU_MEMCTRL_DQS_AUTO                             (0x158 + 0x4 * (x))
+#define ICPU_MEMCTRL_DQS_AUTO_RSZ                         0x2
+
+#define ICPU_MEMCTRL_DQS_AUTO_DQS_DRIFT(x)                (((x) << 6) & GENMASK(7, 6))
+#define ICPU_MEMCTRL_DQS_AUTO_DQS_DRIFT_M                 GENMASK(7, 6)
+#define ICPU_MEMCTRL_DQS_AUTO_DQS_DRIFT_X(x)              (((x) & GENMASK(7, 6)) >> 6)
+#define ICPU_MEMCTRL_DQS_AUTO_DQS_OVERFLOW                BIT(5)
+#define ICPU_MEMCTRL_DQS_AUTO_DQS_UNDERFLOW               BIT(4)
+#define ICPU_MEMCTRL_DQS_AUTO_DQS_AUTO_SRC                BIT(3)
+#define ICPU_MEMCTRL_DQS_AUTO_DQS_AUTO_UP                 BIT(2)
+#define ICPU_MEMCTRL_DQS_AUTO_DQS_AUTO_DOWN               BIT(1)
+#define ICPU_MEMCTRL_DQS_AUTO_DQS_AUTO_ENA                BIT(0)
+
+#define ICPU_MEMPHY_CFG                                   0x160
+
+#define ICPU_MEMPHY_CFG_PHY_FLUSH_DIS                     BIT(10)
+#define ICPU_MEMPHY_CFG_PHY_RD_ADJ_DIS                    BIT(9)
+#define ICPU_MEMPHY_CFG_PHY_DQS_EXT                       BIT(8)
+#define ICPU_MEMPHY_CFG_PHY_FIFO_RST                      BIT(7)
+#define ICPU_MEMPHY_CFG_PHY_DLL_BL_RST                    BIT(6)
+#define ICPU_MEMPHY_CFG_PHY_DLL_CL_RST                    BIT(5)
+#define ICPU_MEMPHY_CFG_PHY_ODT_OE                        BIT(4)
+#define ICPU_MEMPHY_CFG_PHY_CK_OE                         BIT(3)
+#define ICPU_MEMPHY_CFG_PHY_CL_OE                         BIT(2)
+#define ICPU_MEMPHY_CFG_PHY_SSTL_ENA                      BIT(1)
+#define ICPU_MEMPHY_CFG_PHY_RST                           BIT(0)
+
+#define ICPU_MEMPHY_ZCAL                                  0x188
+
+#define ICPU_MEMPHY_ZCAL_ZCAL_CLK_SEL                     BIT(9)
+#define ICPU_MEMPHY_ZCAL_ZCAL_PROG_ODT(x)                 (((x) << 5) & GENMASK(8, 5))
+#define ICPU_MEMPHY_ZCAL_ZCAL_PROG_ODT_M                  GENMASK(8, 5)
+#define ICPU_MEMPHY_ZCAL_ZCAL_PROG_ODT_X(x)               (((x) & GENMASK(8, 5)) >> 5)
+#define ICPU_MEMPHY_ZCAL_ZCAL_PROG(x)                     (((x) << 1) & GENMASK(4, 1))
+#define ICPU_MEMPHY_ZCAL_ZCAL_PROG_M                      GENMASK(4, 1)
+#define ICPU_MEMPHY_ZCAL_ZCAL_PROG_X(x)                   (((x) & GENMASK(4, 1)) >> 1)
+#define ICPU_MEMPHY_ZCAL_ZCAL_ENA                         BIT(0)
+
+#define ICPU_MEMPHY_ZCAL_STAT                             0x18c
+
+#define ICPU_MEMPHY_ZCAL_STAT_ZCAL_ZCTRL(x)               (((x) << 12) & GENMASK(31, 12))
+#define ICPU_MEMPHY_ZCAL_STAT_ZCAL_ZCTRL_M                GENMASK(31, 12)
+#define ICPU_MEMPHY_ZCAL_STAT_ZCAL_ZCTRL_X(x)             (((x) & GENMASK(31, 12)) >> 12)
+#define ICPU_MEMPHY_ZCAL_STAT_ZCAL_STAT_ODTPU(x)          (((x) << 8) & GENMASK(9, 8))
+#define ICPU_MEMPHY_ZCAL_STAT_ZCAL_STAT_ODTPU_M           GENMASK(9, 8)
+#define ICPU_MEMPHY_ZCAL_STAT_ZCAL_STAT_ODTPU_X(x)        (((x) & GENMASK(9, 8)) >> 8)
+#define ICPU_MEMPHY_ZCAL_STAT_ZCAL_STAT_ODTPD(x)          (((x) << 6) & GENMASK(7, 6))
+#define ICPU_MEMPHY_ZCAL_STAT_ZCAL_STAT_ODTPD_M           GENMASK(7, 6)
+#define ICPU_MEMPHY_ZCAL_STAT_ZCAL_STAT_ODTPD_X(x)        (((x) & GENMASK(7, 6)) >> 6)
+#define ICPU_MEMPHY_ZCAL_STAT_ZCAL_STAT_PU(x)             (((x) << 4) & GENMASK(5, 4))
+#define ICPU_MEMPHY_ZCAL_STAT_ZCAL_STAT_PU_M              GENMASK(5, 4)
+#define ICPU_MEMPHY_ZCAL_STAT_ZCAL_STAT_PU_X(x)           (((x) & GENMASK(5, 4)) >> 4)
+#define ICPU_MEMPHY_ZCAL_STAT_ZCAL_STAT_PD(x)             (((x) << 2) & GENMASK(3, 2))
+#define ICPU_MEMPHY_ZCAL_STAT_ZCAL_STAT_PD_M              GENMASK(3, 2)
+#define ICPU_MEMPHY_ZCAL_STAT_ZCAL_STAT_PD_X(x)           (((x) & GENMASK(3, 2)) >> 2)
+#define ICPU_MEMPHY_ZCAL_STAT_ZCAL_ERR                    BIT(1)
+#define ICPU_MEMPHY_ZCAL_STAT_ZCAL_DONE                   BIT(0)
+
+#endif
diff --git a/arch/mips/mach-mscc/reset.c b/arch/mips/mach-mscc/reset.c
index e0e610a..3740225 100644
--- a/arch/mips/mach-mscc/reset.c
+++ b/arch/mips/mach-mscc/reset.c
@@ -12,7 +12,7 @@
 
 void _machine_restart(void)
 {
-#if defined(CONFIG_SOC_JR2)
+#if defined(CONFIG_SOC_JR2) || defined(CONFIG_SOC_SERVALT)
 	register u32 reg = readl(BASE_CFG + ICPU_GENERAL_CTRL);
 	/* Set owner */
 	reg &= ~ICPU_GENERAL_CTRL_IF_SI_OWNER_M;