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-rw-r--r--hw/arm/aspeed.c4
-rw-r--r--hw/arm/aspeed_ast27x0.c18
-rw-r--r--hw/block/m25p80.c63
-rw-r--r--hw/block/m25p80_sfdp.c36
-rw-r--r--hw/block/m25p80_sfdp.h2
-rw-r--r--hw/gpio/aspeed_gpio.c427
-rw-r--r--hw/misc/aspeed_hace.c104
-rw-r--r--hw/ssi/aspeed_smc.c40
8 files changed, 607 insertions, 87 deletions
diff --git a/hw/arm/aspeed.c b/hw/arm/aspeed.c
index cf0c6c580b..b4b1ce9efb 100644
--- a/hw/arm/aspeed.c
+++ b/hw/arm/aspeed.c
@@ -1642,8 +1642,8 @@ static void aspeed_minibmc_machine_ast1030_evb_class_init(ObjectClass *oc,
     mc->init = aspeed_minibmc_machine_init;
     amc->i2c_init = ast1030_evb_i2c_init;
     mc->default_ram_size = 0;
-    amc->fmc_model = "sst25vf032b";
-    amc->spi_model = "sst25vf032b";
+    amc->fmc_model = "w25q80bl";
+    amc->spi_model = "w25q256";
     amc->num_cs = 2;
     amc->macs_mask = 0;
     aspeed_machine_class_init_cpus_defaults(mc);
diff --git a/hw/arm/aspeed_ast27x0.c b/hw/arm/aspeed_ast27x0.c
index 761ee11657..dca660eb6b 100644
--- a/hw/arm/aspeed_ast27x0.c
+++ b/hw/arm/aspeed_ast27x0.c
@@ -62,6 +62,7 @@ static const hwaddr aspeed_soc_ast2700_memmap[] = {
     [ASPEED_GIC_REDIST]    =  0x12280000,
     [ASPEED_DEV_ADC]       =  0x14C00000,
     [ASPEED_DEV_I2C]       =  0x14C0F000,
+    [ASPEED_DEV_GPIO]      =  0x14C0B000,
 };
 
 #define AST2700_MAX_IRQ 288
@@ -87,8 +88,7 @@ static const int aspeed_soc_ast2700_irqmap[] = {
     [ASPEED_DEV_ADC]       = 130,
     [ASPEED_DEV_XDMA]      = 5,
     [ASPEED_DEV_EMMC]      = 15,
-    [ASPEED_DEV_GPIO]      = 11,
-    [ASPEED_DEV_GPIO_1_8V] = 130,
+    [ASPEED_DEV_GPIO]      = 130,
     [ASPEED_DEV_RTC]       = 13,
     [ASPEED_DEV_TIMER1]    = 16,
     [ASPEED_DEV_TIMER2]    = 17,
@@ -124,7 +124,7 @@ static const int aspeed_soc_ast2700_gic128_intcmap[] = {
 static const int aspeed_soc_ast2700_gic130_intcmap[] = {
     [ASPEED_DEV_I2C]        = 0,
     [ASPEED_DEV_ADC]        = 16,
-    [ASPEED_DEV_GPIO_1_8V]  = 18,
+    [ASPEED_DEV_GPIO]       = 18,
 };
 
 /* GICINT 131 */
@@ -373,6 +373,9 @@ static void aspeed_soc_ast2700_init(Object *obj)
 
     snprintf(typename, sizeof(typename), "aspeed.i2c-%s", socname);
     object_initialize_child(obj, "i2c", &s->i2c, typename);
+
+    snprintf(typename, sizeof(typename), "aspeed.gpio-%s", socname);
+    object_initialize_child(obj, "gpio", &s->gpio, typename);
 }
 
 /*
@@ -658,6 +661,15 @@ static void aspeed_soc_ast2700_realize(DeviceState *dev, Error **errp)
         sysbus_connect_irq(SYS_BUS_DEVICE(&s->i2c.busses[i]), 0, irq);
     }
 
+    /* GPIO */
+    if (!sysbus_realize(SYS_BUS_DEVICE(&s->gpio), errp)) {
+        return;
+    }
+    aspeed_mmio_map(s, SYS_BUS_DEVICE(&s->gpio), 0,
+                    sc->memmap[ASPEED_DEV_GPIO]);
+    sysbus_connect_irq(SYS_BUS_DEVICE(&s->gpio), 0,
+                       aspeed_soc_get_irq(s, ASPEED_DEV_GPIO));
+
     create_unimplemented_device("ast2700.dpmcu", 0x11000000, 0x40000);
     create_unimplemented_device("ast2700.iomem0", 0x12000000, 0x01000000);
     create_unimplemented_device("ast2700.iomem1", 0x14000000, 0x01000000);
diff --git a/hw/block/m25p80.c b/hw/block/m25p80.c
index f7123f9e68..e2e84f8b5f 100644
--- a/hw/block/m25p80.c
+++ b/hw/block/m25p80.c
@@ -61,7 +61,8 @@ typedef struct FlashPartInfo {
      */
     uint8_t id[SPI_NOR_MAX_ID_LEN];
     uint8_t id_len;
-    /* there is confusion between manufacturers as to what a sector is. In this
+    /*
+     * there is confusion between manufacturers as to what a sector is. In this
      * device model, a "sector" is the size that is erased by the ERASE_SECTOR
      * command (opcode 0xd8).
      */
@@ -168,7 +169,7 @@ typedef struct FlashPartInfo {
 /*
  * Spansion read mode command length in bytes,
  * the mode is currently not supported.
-*/
+ */
 
 #define SPANSION_CONTINUOUS_READ_MODE_CMD_LEN 1
 #define WINBOND_CONTINUOUS_READ_MODE_CMD_LEN 1
@@ -189,7 +190,8 @@ static const FlashPartInfo known_devices[] = {
 
     { INFO("at45db081d",  0x1f2500,      0,  64 << 10,  16, ER_4K) },
 
-    /* Atmel EEPROMS - it is assumed, that don't care bit in command
+    /*
+     * Atmel EEPROMS - it is assumed, that don't care bit in command
      * is set to 0. Block protection is not supported.
      */
     { INFO("at25128a-nonjedec", 0x0,     0,         1, 131072, EEPROM) },
@@ -275,10 +277,13 @@ static const FlashPartInfo known_devices[] = {
     { INFO_STACKED("n25q00a",   0x20bb21, 0x1000, 64 << 10, 2048, ER_4K, 4) },
     { INFO_STACKED("mt25ql01g", 0x20ba21, 0x1040, 64 << 10, 2048, ER_4K, 2) },
     { INFO_STACKED("mt25qu01g", 0x20bb21, 0x1040, 64 << 10, 2048, ER_4K, 2) },
-    { INFO_STACKED("mt25ql02g", 0x20ba22, 0x1040, 64 << 10, 4096, ER_4K | ER_32K, 2) },
-    { INFO_STACKED("mt25qu02g", 0x20bb22, 0x1040, 64 << 10, 4096, ER_4K | ER_32K, 2) },
+    { INFO_STACKED("mt25ql02g", 0x20ba22, 0x1040, 64 << 10, 4096,
+                   ER_4K | ER_32K, 2) },
+    { INFO_STACKED("mt25qu02g", 0x20bb22, 0x1040, 64 << 10, 4096,
+                   ER_4K | ER_32K, 2) },
 
-    /* Spansion -- single (large) sector size only, at least
+    /*
+     * Spansion -- single (large) sector size only, at least
      * for the chips listed here (without boot sectors).
      */
     { INFO("s25sl032p",   0x010215, 0x4d00,  64 << 10,  64, ER_4K) },
@@ -351,7 +356,8 @@ static const FlashPartInfo known_devices[] = {
     { INFO("w25x64",      0xef3017,      0,  64 << 10, 128, ER_4K) },
     { INFO("w25q64",      0xef4017,      0,  64 << 10, 128, ER_4K) },
     { INFO("w25q80",      0xef5014,      0,  64 << 10,  16, ER_4K) },
-    { INFO("w25q80bl",    0xef4014,      0,  64 << 10,  16, ER_4K) },
+    { INFO("w25q80bl",    0xef4014,      0,  64 << 10,  16, ER_4K),
+      .sfdp_read = m25p80_sfdp_w25q80bl },
     { INFO("w25q256",     0xef4019,      0,  64 << 10, 512, ER_4K),
       .sfdp_read = m25p80_sfdp_w25q256 },
     { INFO("w25q512jv",   0xef4020,      0,  64 << 10, 1024, ER_4K),
@@ -425,6 +431,11 @@ typedef enum {
     RDCR_EQIO = 0x35,
     RSTQIO = 0xf5,
 
+    /*
+     * Winbond: 0x31 - write status register 2
+     */
+    WRSR2 = 0x31,
+
     RNVCR = 0xB5,
     WNVCR = 0xB1,
 
@@ -549,7 +560,8 @@ static void blk_sync_complete(void *opaque, int ret)
     qemu_iovec_destroy(iov);
     g_free(iov);
 
-    /* do nothing. Masters do not directly interact with the backing store,
+    /*
+     * do nothing. Masters do not directly interact with the backing store,
      * only the working copy so no mutexing required.
      */
 }
@@ -815,6 +827,15 @@ static void complete_collecting_data(Flash *s)
             s->write_enable = false;
         }
         break;
+    case WRSR2:
+        switch (get_man(s)) {
+        case MAN_WINBOND:
+            s->quad_enable = !!(s->data[0] & 0x02);
+            break;
+        default:
+            break;
+        }
+        break;
     case BRWR:
     case EXTEND_ADDR_WRITE:
         s->ear = s->data[0];
@@ -1274,7 +1295,31 @@ static void decode_new_cmd(Flash *s, uint32_t value)
         }
         s->pos = 0;
         break;
+    case WRSR2:
+        /*
+         * If WP# is low and status_register_write_disabled is high,
+         * status register writes are disabled.
+         * This is also called "hardware protected mode" (HPM). All other
+         * combinations of the two states are called "software protected mode"
+         * (SPM), and status register writes are permitted.
+         */
+        if ((s->wp_level == 0 && s->status_register_write_disabled)
+            || !s->write_enable) {
+            qemu_log_mask(LOG_GUEST_ERROR,
+                          "M25P80: Status register 2 write is disabled!\n");
+            break;
+        }
 
+        switch (get_man(s)) {
+        case MAN_WINBOND:
+            s->needed_bytes = 1;
+            s->state = STATE_COLLECTING_DATA;
+            s->pos = 0;
+            break;
+        default:
+            break;
+        }
+        break;
     case WRDI:
         s->write_enable = false;
         if (get_man(s) == MAN_SST) {
@@ -1843,7 +1888,7 @@ static void m25p80_register_types(void)
 
     type_register_static(&m25p80_info);
     for (i = 0; i < ARRAY_SIZE(known_devices); ++i) {
-        TypeInfo ti = {
+        const TypeInfo ti = {
             .name       = known_devices[i].part_name,
             .parent     = TYPE_M25P80,
             .class_init = m25p80_class_init,
diff --git a/hw/block/m25p80_sfdp.c b/hw/block/m25p80_sfdp.c
index 82d84cc21f..a03a291a09 100644
--- a/hw/block/m25p80_sfdp.c
+++ b/hw/block/m25p80_sfdp.c
@@ -404,6 +404,42 @@ static const uint8_t sfdp_w25q01jvq[] = {
 };
 define_sfdp_read(w25q01jvq);
 
+static const uint8_t sfdp_w25q80bl[] = {
+    0x53, 0x46, 0x44, 0x50, 0x05, 0x01, 0x00, 0xff,
+    0x00, 0x05, 0x01, 0x10, 0x80, 0x00, 0x00, 0xff,
+    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+    0xe5, 0x20, 0xf1, 0xff, 0xff, 0xff, 0x7f, 0x00,
+    0x44, 0xeb, 0x08, 0x6b, 0x08, 0x3b, 0x42, 0xbb,
+    0xee, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00, 0x00,
+    0xff, 0xff, 0x00, 0x00, 0x0c, 0x20, 0x0f, 0x52,
+    0x10, 0xd8, 0x00, 0x00, 0x23, 0x02, 0xa6, 0x00,
+    0x81, 0x6c, 0x14, 0xa7, 0xed, 0x61, 0x76, 0x33,
+    0x7a, 0x75, 0x7a, 0x75, 0xf7, 0xa2, 0xd5, 0x5c,
+    0x00, 0xf7, 0x1d, 0xff, 0xe9, 0x30, 0xc0, 0x80,
+    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+};
+define_sfdp_read(w25q80bl);
+
 /*
  * Integrated Silicon Solution (ISSI)
  */
diff --git a/hw/block/m25p80_sfdp.h b/hw/block/m25p80_sfdp.h
index 89c2d8f72d..35785686a0 100644
--- a/hw/block/m25p80_sfdp.h
+++ b/hw/block/m25p80_sfdp.h
@@ -25,7 +25,7 @@ uint8_t m25p80_sfdp_mx66l1g45g(uint32_t addr);
 
 uint8_t m25p80_sfdp_w25q256(uint32_t addr);
 uint8_t m25p80_sfdp_w25q512jv(uint32_t addr);
-
+uint8_t m25p80_sfdp_w25q80bl(uint32_t addr);
 uint8_t m25p80_sfdp_w25q01jvq(uint32_t addr);
 
 uint8_t m25p80_sfdp_is25wp256(uint32_t addr);
diff --git a/hw/gpio/aspeed_gpio.c b/hw/gpio/aspeed_gpio.c
index 71756664dd..a5b3f454e8 100644
--- a/hw/gpio/aspeed_gpio.c
+++ b/hw/gpio/aspeed_gpio.c
@@ -227,6 +227,38 @@ REG32(GPIO_INDEX_REG, 0x2AC)
     FIELD(GPIO_INDEX_REG, COMMAND_SRC_1, 21, 1)
     FIELD(GPIO_INDEX_REG, INPUT_MASK, 20, 1)
 
+/* AST2700 GPIO Register Address Offsets */
+REG32(GPIO_2700_DEBOUNCE_TIME_1, 0x000)
+REG32(GPIO_2700_DEBOUNCE_TIME_2, 0x004)
+REG32(GPIO_2700_DEBOUNCE_TIME_3, 0x008)
+REG32(GPIO_2700_INT_STATUS_1, 0x100)
+REG32(GPIO_2700_INT_STATUS_2, 0x104)
+REG32(GPIO_2700_INT_STATUS_3, 0x108)
+REG32(GPIO_2700_INT_STATUS_4, 0x10C)
+REG32(GPIO_2700_INT_STATUS_5, 0x110)
+REG32(GPIO_2700_INT_STATUS_6, 0x114)
+REG32(GPIO_2700_INT_STATUS_7, 0x118)
+/* GPIOA0 - GPIOAA7 Control Register */
+REG32(GPIO_A0_CONTROL, 0x180)
+    SHARED_FIELD(GPIO_CONTROL_OUT_DATA, 0, 1)
+    SHARED_FIELD(GPIO_CONTROL_DIRECTION, 1, 1)
+    SHARED_FIELD(GPIO_CONTROL_INT_ENABLE, 2, 1)
+    SHARED_FIELD(GPIO_CONTROL_INT_SENS_0, 3, 1)
+    SHARED_FIELD(GPIO_CONTROL_INT_SENS_1, 4, 1)
+    SHARED_FIELD(GPIO_CONTROL_INT_SENS_2, 5, 1)
+    SHARED_FIELD(GPIO_CONTROL_RESET_TOLERANCE, 6, 1)
+    SHARED_FIELD(GPIO_CONTROL_DEBOUNCE_1, 7, 1)
+    SHARED_FIELD(GPIO_CONTROL_DEBOUNCE_2, 8, 1)
+    SHARED_FIELD(GPIO_CONTROL_INPUT_MASK, 9, 1)
+    SHARED_FIELD(GPIO_CONTROL_BLINK_COUNTER_1, 10, 1)
+    SHARED_FIELD(GPIO_CONTROL_BLINK_COUNTER_2, 11, 1)
+    SHARED_FIELD(GPIO_CONTROL_INT_STATUS, 12, 1)
+    SHARED_FIELD(GPIO_CONTROL_IN_DATA, 13, 1)
+    SHARED_FIELD(GPIO_CONTROL_RESERVED, 14, 18)
+REG32(GPIO_AA7_CONTROL, 0x4DC)
+#define GPIO_2700_MEM_SIZE 0x4E0
+#define GPIO_2700_REG_ARRAY_SIZE (GPIO_2700_MEM_SIZE >> 2)
+
 static int aspeed_evaluate_irq(GPIOSets *regs, int gpio_prev_high, int gpio)
 {
     uint32_t falling_edge = 0, rising_edge = 0;
@@ -340,7 +372,8 @@ static void aspeed_gpio_set_pin_level(AspeedGPIOState *s, uint32_t set_idx,
         value &= ~pin_mask;
     }
 
-    aspeed_gpio_update(s, &s->sets[set_idx], value, ~s->sets[set_idx].direction);
+    aspeed_gpio_update(s, &s->sets[set_idx], value,
+                       ~s->sets[set_idx].direction);
 }
 
 /*
@@ -629,7 +662,6 @@ static uint64_t aspeed_gpio_read(void *opaque, hwaddr offset, uint32_t size)
 static void aspeed_gpio_write_index_mode(void *opaque, hwaddr offset,
                                                 uint64_t data, uint32_t size)
 {
-
     AspeedGPIOState *s = ASPEED_GPIO(opaque);
     AspeedGPIOClass *agc = ASPEED_GPIO_GET_CLASS(s);
     const GPIOSetProperties *props;
@@ -641,7 +673,7 @@ static void aspeed_gpio_write_index_mode(void *opaque, hwaddr offset,
     uint32_t pin_idx = reg_idx_number % ASPEED_GPIOS_PER_SET;
     uint32_t group_idx = pin_idx / GPIOS_PER_GROUP;
     uint32_t reg_value = 0;
-    uint32_t cleared;
+    uint32_t pending = 0;
 
     set = &s->sets[set_idx];
     props = &agc->props[set_idx];
@@ -703,16 +735,23 @@ static void aspeed_gpio_write_index_mode(void *opaque, hwaddr offset,
                               FIELD_EX32(data, GPIO_INDEX_REG, INT_SENS_2));
         set->int_sens_2 = update_value_control_source(set, set->int_sens_2,
                                                       reg_value);
-        /* set interrupt status */
-        reg_value = set->int_status;
-        reg_value = deposit32(reg_value, pin_idx, 1,
-                              FIELD_EX32(data, GPIO_INDEX_REG, INT_STATUS));
-        cleared = ctpop32(reg_value & set->int_status);
-        if (s->pending && cleared) {
-            assert(s->pending >= cleared);
-            s->pending -= cleared;
+        /* interrupt status */
+        if (FIELD_EX32(data, GPIO_INDEX_REG, INT_STATUS)) {
+            /* pending is either 1 or 0 for a 1-bit field */
+            pending = extract32(set->int_status, pin_idx, 1);
+
+            assert(s->pending >= pending);
+
+            /* No change to s->pending if pending is 0 */
+            s->pending -= pending;
+
+            /*
+             * The write acknowledged the interrupt regardless of whether it
+             * was pending or not. The post-condition is that it mustn't be
+             * pending. Unconditionally clear the status bit.
+             */
+            set->int_status = deposit32(set->int_status, pin_idx, 1, 0);
         }
-        set->int_status &= ~reg_value;
         break;
     case gpio_reg_idx_debounce:
         reg_value = set->debounce_1;
@@ -963,7 +1002,317 @@ static void aspeed_gpio_set_pin(Object *obj, Visitor *v, const char *name,
     aspeed_gpio_set_pin_level(s, set_idx, pin, level);
 }
 
-/****************** Setup functions ******************/
+static uint64_t aspeed_gpio_2700_read_control_reg(AspeedGPIOState *s,
+                                    uint32_t pin)
+{
+    AspeedGPIOClass *agc = ASPEED_GPIO_GET_CLASS(s);
+    GPIOSets *set;
+    uint64_t value = 0;
+    uint32_t set_idx;
+    uint32_t pin_idx;
+
+    set_idx = pin / ASPEED_GPIOS_PER_SET;
+    pin_idx = pin % ASPEED_GPIOS_PER_SET;
+
+    if (set_idx >= agc->nr_gpio_sets) {
+        qemu_log_mask(LOG_GUEST_ERROR, "%s: set index: %d, out of bounds\n",
+                      __func__, set_idx);
+        return 0;
+    }
+
+    set = &s->sets[set_idx];
+    value = SHARED_FIELD_DP32(value, GPIO_CONTROL_OUT_DATA,
+                              extract32(set->data_read, pin_idx, 1));
+    value = SHARED_FIELD_DP32(value, GPIO_CONTROL_DIRECTION,
+                              extract32(set->direction, pin_idx, 1));
+    value = SHARED_FIELD_DP32(value, GPIO_CONTROL_INT_ENABLE,
+                              extract32(set->int_enable, pin_idx, 1));
+    value = SHARED_FIELD_DP32(value, GPIO_CONTROL_INT_SENS_0,
+                              extract32(set->int_sens_0, pin_idx, 1));
+    value = SHARED_FIELD_DP32(value, GPIO_CONTROL_INT_SENS_1,
+                              extract32(set->int_sens_1, pin_idx, 1));
+    value = SHARED_FIELD_DP32(value, GPIO_CONTROL_INT_SENS_2,
+                              extract32(set->int_sens_2, pin_idx, 1));
+    value = SHARED_FIELD_DP32(value, GPIO_CONTROL_RESET_TOLERANCE,
+                              extract32(set->reset_tol, pin_idx, 1));
+    value = SHARED_FIELD_DP32(value, GPIO_CONTROL_DEBOUNCE_1,
+                              extract32(set->debounce_1, pin_idx, 1));
+    value = SHARED_FIELD_DP32(value, GPIO_CONTROL_DEBOUNCE_2,
+                              extract32(set->debounce_2, pin_idx, 1));
+    value = SHARED_FIELD_DP32(value, GPIO_CONTROL_INPUT_MASK,
+                              extract32(set->input_mask, pin_idx, 1));
+    value = SHARED_FIELD_DP32(value, GPIO_CONTROL_INT_STATUS,
+                              extract32(set->int_status, pin_idx, 1));
+    value = SHARED_FIELD_DP32(value, GPIO_CONTROL_IN_DATA,
+                              extract32(set->data_value, pin_idx, 1));
+    return value;
+}
+
+static void aspeed_gpio_2700_write_control_reg(AspeedGPIOState *s,
+                                uint32_t pin, uint64_t data)
+{
+    AspeedGPIOClass *agc = ASPEED_GPIO_GET_CLASS(s);
+    const GPIOSetProperties *props;
+    GPIOSets *set;
+    uint32_t set_idx;
+    uint32_t pin_idx;
+    uint32_t group_value = 0;
+    uint32_t pending = 0;
+
+    set_idx = pin / ASPEED_GPIOS_PER_SET;
+    pin_idx = pin % ASPEED_GPIOS_PER_SET;
+
+    if (set_idx >= agc->nr_gpio_sets) {
+        qemu_log_mask(LOG_GUEST_ERROR, "%s: set index: %d, out of bounds\n",
+                      __func__, set_idx);
+        return;
+    }
+
+    set = &s->sets[set_idx];
+    props = &agc->props[set_idx];
+
+    /* direction */
+    group_value = set->direction;
+    group_value = deposit32(group_value, pin_idx, 1,
+                            SHARED_FIELD_EX32(data, GPIO_CONTROL_DIRECTION));
+    /*
+     * where data is the value attempted to be written to the pin:
+     * pin type      | input mask | output mask | expected value
+     * ------------------------------------------------------------
+     * bidirectional  |   1       |   1        |  data
+     * input only     |   1       |   0        |   0
+     * output only    |   0       |   1        |   1
+     * no pin         |   0       |   0        |   0
+     *
+     * which is captured by:
+     * data = ( data | ~input) & output;
+     */
+    group_value = (group_value | ~props->input) & props->output;
+    set->direction = update_value_control_source(set, set->direction,
+                                                 group_value);
+
+    /* out data */
+    group_value = set->data_read;
+    group_value = deposit32(group_value, pin_idx, 1,
+                            SHARED_FIELD_EX32(data, GPIO_CONTROL_OUT_DATA));
+    group_value &= props->output;
+    group_value = update_value_control_source(set, set->data_read,
+                                              group_value);
+    set->data_read = group_value;
+
+    /* interrupt enable */
+    group_value = set->int_enable;
+    group_value = deposit32(group_value, pin_idx, 1,
+                            SHARED_FIELD_EX32(data, GPIO_CONTROL_INT_ENABLE));
+    set->int_enable = update_value_control_source(set, set->int_enable,
+                                                  group_value);
+
+    /* interrupt sensitivity type 0 */
+    group_value = set->int_sens_0;
+    group_value = deposit32(group_value, pin_idx, 1,
+                            SHARED_FIELD_EX32(data, GPIO_CONTROL_INT_SENS_0));
+    set->int_sens_0 = update_value_control_source(set, set->int_sens_0,
+                                                  group_value);
+
+    /* interrupt sensitivity type 1 */
+    group_value = set->int_sens_1;
+    group_value = deposit32(group_value, pin_idx, 1,
+                            SHARED_FIELD_EX32(data, GPIO_CONTROL_INT_SENS_1));
+    set->int_sens_1 = update_value_control_source(set, set->int_sens_1,
+                                                  group_value);
+
+    /* interrupt sensitivity type 2 */
+    group_value = set->int_sens_2;
+    group_value = deposit32(group_value, pin_idx, 1,
+                            SHARED_FIELD_EX32(data, GPIO_CONTROL_INT_SENS_2));
+    set->int_sens_2 = update_value_control_source(set, set->int_sens_2,
+                                                  group_value);
+
+    /* reset tolerance enable */
+    group_value = set->reset_tol;
+    group_value = deposit32(group_value, pin_idx, 1,
+                        SHARED_FIELD_EX32(data, GPIO_CONTROL_RESET_TOLERANCE));
+    set->reset_tol = update_value_control_source(set, set->reset_tol,
+                                                 group_value);
+
+    /* debounce 1 */
+    group_value = set->debounce_1;
+    group_value = deposit32(group_value, pin_idx, 1,
+                            SHARED_FIELD_EX32(data, GPIO_CONTROL_DEBOUNCE_1));
+    set->debounce_1 = update_value_control_source(set, set->debounce_1,
+                                                  group_value);
+
+    /* debounce 2 */
+    group_value = set->debounce_2;
+    group_value = deposit32(group_value, pin_idx, 1,
+                            SHARED_FIELD_EX32(data, GPIO_CONTROL_DEBOUNCE_2));
+    set->debounce_2 = update_value_control_source(set, set->debounce_2,
+                                                  group_value);
+
+    /* input mask */
+    group_value = set->input_mask;
+    group_value = deposit32(group_value, pin_idx, 1,
+                            SHARED_FIELD_EX32(data, GPIO_CONTROL_INPUT_MASK));
+    /*
+     * feeds into interrupt generation
+     * 0: read from data value reg will be updated
+     * 1: read from data value reg will not be updated
+     */
+    set->input_mask = group_value & props->input;
+
+    /* blink counter 1 */
+    /* blink counter 2 */
+    /* unimplement */
+
+    /* interrupt status */
+    if (SHARED_FIELD_EX32(data, GPIO_CONTROL_INT_STATUS)) {
+        /* pending is either 1 or 0 for a 1-bit field */
+        pending = extract32(set->int_status, pin_idx, 1);
+
+        assert(s->pending >= pending);
+
+        /* No change to s->pending if pending is 0 */
+        s->pending -= pending;
+
+        /*
+         * The write acknowledged the interrupt regardless of whether it
+         * was pending or not. The post-condition is that it mustn't be
+         * pending. Unconditionally clear the status bit.
+         */
+        set->int_status = deposit32(set->int_status, pin_idx, 1, 0);
+    }
+
+    aspeed_gpio_update(s, set, set->data_value, UINT32_MAX);
+    return;
+}
+
+static uint64_t aspeed_gpio_2700_read(void *opaque, hwaddr offset,
+                                uint32_t size)
+{
+    AspeedGPIOState *s = ASPEED_GPIO(opaque);
+    AspeedGPIOClass *agc = ASPEED_GPIO_GET_CLASS(s);
+    GPIOSets *set;
+    uint64_t value;
+    uint64_t reg;
+    uint32_t pin;
+    uint32_t idx;
+
+    reg = offset >> 2;
+
+    if (reg >= agc->reg_table_count) {
+        qemu_log_mask(LOG_GUEST_ERROR,
+                      "%s: offset 0x%" PRIx64 " out of bounds\n",
+                      __func__, offset);
+        return 0;
+    }
+
+    switch (reg) {
+    case R_GPIO_2700_DEBOUNCE_TIME_1 ... R_GPIO_2700_DEBOUNCE_TIME_3:
+        idx = reg - R_GPIO_2700_DEBOUNCE_TIME_1;
+
+        if (idx >= ASPEED_GPIO_NR_DEBOUNCE_REGS) {
+            qemu_log_mask(LOG_GUEST_ERROR,
+                          "%s: debounce index: %d, out of bounds\n",
+                          __func__, idx);
+            return 0;
+        }
+
+        value = (uint64_t) s->debounce_regs[idx];
+        break;
+    case R_GPIO_2700_INT_STATUS_1 ... R_GPIO_2700_INT_STATUS_7:
+        idx = reg - R_GPIO_2700_INT_STATUS_1;
+
+        if (idx >= agc->nr_gpio_sets) {
+            qemu_log_mask(LOG_GUEST_ERROR,
+                          "%s: interrupt status index: %d, out of bounds\n",
+                          __func__, idx);
+            return 0;
+        }
+
+        set = &s->sets[idx];
+        value = (uint64_t) set->int_status;
+        break;
+    case R_GPIO_A0_CONTROL ... R_GPIO_AA7_CONTROL:
+        pin = reg - R_GPIO_A0_CONTROL;
+
+        if (pin >= agc->nr_gpio_pins) {
+            qemu_log_mask(LOG_GUEST_ERROR, "%s: invalid pin number: %d\n",
+                          __func__, pin);
+               return 0;
+        }
+
+        value = aspeed_gpio_2700_read_control_reg(s, pin);
+        break;
+    default:
+        qemu_log_mask(LOG_GUEST_ERROR, "%s: no getter for offset 0x%"
+                      PRIx64"\n", __func__, offset);
+        return 0;
+    }
+
+    trace_aspeed_gpio_read(offset, value);
+    return value;
+}
+
+static void aspeed_gpio_2700_write(void *opaque, hwaddr offset,
+                                uint64_t data, uint32_t size)
+{
+    AspeedGPIOState *s = ASPEED_GPIO(opaque);
+    AspeedGPIOClass *agc = ASPEED_GPIO_GET_CLASS(s);
+    uint64_t reg;
+    uint32_t pin;
+    uint32_t idx;
+
+    trace_aspeed_gpio_write(offset, data);
+
+    reg = offset >> 2;
+
+    if (reg >= agc->reg_table_count) {
+        qemu_log_mask(LOG_GUEST_ERROR,
+                      "%s: offset 0x%" PRIx64 " out of bounds\n",
+                      __func__, offset);
+        return;
+    }
+
+    switch (reg) {
+    case R_GPIO_2700_DEBOUNCE_TIME_1 ... R_GPIO_2700_DEBOUNCE_TIME_3:
+        idx = reg - R_GPIO_2700_DEBOUNCE_TIME_1;
+
+        if (idx >= ASPEED_GPIO_NR_DEBOUNCE_REGS) {
+            qemu_log_mask(LOG_GUEST_ERROR,
+                          "%s: debounce index: %d out of bounds\n",
+                          __func__, idx);
+            return;
+        }
+
+        s->debounce_regs[idx] = (uint32_t) data;
+        break;
+    case R_GPIO_A0_CONTROL ... R_GPIO_AA7_CONTROL:
+        pin = reg - R_GPIO_A0_CONTROL;
+
+        if (pin >= agc->nr_gpio_pins) {
+            qemu_log_mask(LOG_GUEST_ERROR, "%s: invalid pin number: %d\n",
+                          __func__, pin);
+            return;
+        }
+
+        if (SHARED_FIELD_EX32(data, GPIO_CONTROL_RESERVED)) {
+            qemu_log_mask(LOG_GUEST_ERROR, "%s: invalid reserved data: 0x%"
+                          PRIx64"\n", __func__, data);
+            return;
+        }
+
+        aspeed_gpio_2700_write_control_reg(s, pin, data);
+        break;
+    default:
+        qemu_log_mask(LOG_GUEST_ERROR, "%s: no setter for offset 0x%"
+                      PRIx64"\n", __func__, offset);
+        break;
+    }
+
+    return;
+}
+
+/* Setup functions */
 static const GPIOSetProperties ast2400_set_props[ASPEED_GPIO_MAX_NR_SETS] = {
     [0] = {0xffffffff,  0xffffffff,  {"A", "B", "C", "D"} },
     [1] = {0xffffffff,  0xffffffff,  {"E", "F", "G", "H"} },
@@ -1009,6 +1358,16 @@ static GPIOSetProperties ast1030_set_props[ASPEED_GPIO_MAX_NR_SETS] = {
     [5] = {0x000000ff,  0x00000000,  {"U"} },
 };
 
+static GPIOSetProperties ast2700_set_props[ASPEED_GPIO_MAX_NR_SETS] = {
+    [0] = {0xffffffff,  0xffffffff,  {"A", "B", "C", "D"} },
+    [1] = {0x0fffffff,  0x0fffffff,  {"E", "F", "G", "H"} },
+    [2] = {0xffffffff,  0xffffffff,  {"I", "J", "K", "L"} },
+    [3] = {0xffffffff,  0xffffffff,  {"M", "N", "O", "P"} },
+    [4] = {0xffffffff,  0xffffffff,  {"Q", "R", "S", "T"} },
+    [5] = {0xffffffff,  0xffffffff,  {"U", "V", "W", "X"} },
+    [6] = {0x00ffffff,  0x00ffffff,  {"Y", "Z", "AA"} },
+};
+
 static const MemoryRegionOps aspeed_gpio_ops = {
     .read       = aspeed_gpio_read,
     .write      = aspeed_gpio_write,
@@ -1017,6 +1376,14 @@ static const MemoryRegionOps aspeed_gpio_ops = {
     .valid.max_access_size = 4,
 };
 
+static const MemoryRegionOps aspeed_gpio_2700_ops = {
+    .read       = aspeed_gpio_2700_read,
+    .write      = aspeed_gpio_2700_write,
+    .endianness = DEVICE_LITTLE_ENDIAN,
+    .valid.min_access_size = 4,
+    .valid.max_access_size = 4,
+};
+
 static void aspeed_gpio_reset(DeviceState *dev)
 {
     AspeedGPIOState *s = ASPEED_GPIO(dev);
@@ -1046,8 +1413,8 @@ static void aspeed_gpio_realize(DeviceState *dev, Error **errp)
         }
     }
 
-    memory_region_init_io(&s->iomem, OBJECT(s), &aspeed_gpio_ops, s,
-            TYPE_ASPEED_GPIO, 0x800);
+    memory_region_init_io(&s->iomem, OBJECT(s), agc->reg_ops, s,
+                          TYPE_ASPEED_GPIO, agc->mem_size);
 
     sysbus_init_mmio(sbd, &s->iomem);
 }
@@ -1130,6 +1497,8 @@ static void aspeed_gpio_ast2400_class_init(ObjectClass *klass, void *data)
     agc->nr_gpio_sets = 7;
     agc->reg_table = aspeed_3_3v_gpios;
     agc->reg_table_count = GPIO_3_3V_REG_ARRAY_SIZE;
+    agc->mem_size = 0x1000;
+    agc->reg_ops = &aspeed_gpio_ops;
 }
 
 static void aspeed_gpio_2500_class_init(ObjectClass *klass, void *data)
@@ -1141,6 +1510,8 @@ static void aspeed_gpio_2500_class_init(ObjectClass *klass, void *data)
     agc->nr_gpio_sets = 8;
     agc->reg_table = aspeed_3_3v_gpios;
     agc->reg_table_count = GPIO_3_3V_REG_ARRAY_SIZE;
+    agc->mem_size = 0x1000;
+    agc->reg_ops = &aspeed_gpio_ops;
 }
 
 static void aspeed_gpio_ast2600_3_3v_class_init(ObjectClass *klass, void *data)
@@ -1152,6 +1523,8 @@ static void aspeed_gpio_ast2600_3_3v_class_init(ObjectClass *klass, void *data)
     agc->nr_gpio_sets = 7;
     agc->reg_table = aspeed_3_3v_gpios;
     agc->reg_table_count = GPIO_3_3V_REG_ARRAY_SIZE;
+    agc->mem_size = 0x800;
+    agc->reg_ops = &aspeed_gpio_ops;
 }
 
 static void aspeed_gpio_ast2600_1_8v_class_init(ObjectClass *klass, void *data)
@@ -1163,6 +1536,8 @@ static void aspeed_gpio_ast2600_1_8v_class_init(ObjectClass *klass, void *data)
     agc->nr_gpio_sets = 2;
     agc->reg_table = aspeed_1_8v_gpios;
     agc->reg_table_count = GPIO_1_8V_REG_ARRAY_SIZE;
+    agc->mem_size = 0x800;
+    agc->reg_ops = &aspeed_gpio_ops;
 }
 
 static void aspeed_gpio_1030_class_init(ObjectClass *klass, void *data)
@@ -1174,6 +1549,20 @@ static void aspeed_gpio_1030_class_init(ObjectClass *klass, void *data)
     agc->nr_gpio_sets = 6;
     agc->reg_table = aspeed_3_3v_gpios;
     agc->reg_table_count = GPIO_3_3V_REG_ARRAY_SIZE;
+    agc->mem_size = 0x1000;
+    agc->reg_ops = &aspeed_gpio_ops;
+}
+
+static void aspeed_gpio_2700_class_init(ObjectClass *klass, void *data)
+{
+    AspeedGPIOClass *agc = ASPEED_GPIO_CLASS(klass);
+
+    agc->props = ast2700_set_props;
+    agc->nr_gpio_pins = 216;
+    agc->nr_gpio_sets = 7;
+    agc->reg_table_count = GPIO_2700_REG_ARRAY_SIZE;
+    agc->mem_size = 0x1000;
+    agc->reg_ops = &aspeed_gpio_2700_ops;
 }
 
 static const TypeInfo aspeed_gpio_info = {
@@ -1220,6 +1609,13 @@ static const TypeInfo aspeed_gpio_ast1030_info = {
     .instance_init  = aspeed_gpio_init,
 };
 
+static const TypeInfo aspeed_gpio_ast2700_info = {
+    .name           = TYPE_ASPEED_GPIO "-ast2700",
+    .parent         = TYPE_ASPEED_GPIO,
+    .class_init     = aspeed_gpio_2700_class_init,
+    .instance_init  = aspeed_gpio_init,
+};
+
 static void aspeed_gpio_register_types(void)
 {
     type_register_static(&aspeed_gpio_info);
@@ -1228,6 +1624,7 @@ static void aspeed_gpio_register_types(void)
     type_register_static(&aspeed_gpio_ast2600_3_3v_info);
     type_register_static(&aspeed_gpio_ast2600_1_8v_info);
     type_register_static(&aspeed_gpio_ast1030_info);
+    type_register_static(&aspeed_gpio_ast2700_info);
 }
 
 type_init(aspeed_gpio_register_types);
diff --git a/hw/misc/aspeed_hace.c b/hw/misc/aspeed_hace.c
index b6f43f65b2..bc1d66ad80 100644
--- a/hw/misc/aspeed_hace.c
+++ b/hw/misc/aspeed_hace.c
@@ -1,6 +1,7 @@
 /*
  * ASPEED Hash and Crypto Engine
  *
+ * Copyright (c) 2024 Seagate Technology LLC and/or its Affiliates
  * Copyright (C) 2021 IBM Corp.
  *
  * Joel Stanley <joel@jms.id.au>
@@ -151,49 +152,28 @@ static int reconstruct_iov(AspeedHACEState *s, struct iovec *iov, int id,
     return iov_count;
 }
 
-/**
- * Generate iov for accumulative mode.
- *
- * @param s             aspeed hace state object
- * @param iov           iov of the current request
- * @param id            index of the current iov
- * @param req_len       length of the current request
- *
- * @return count of iov
- */
-static int gen_acc_mode_iov(AspeedHACEState *s, struct iovec *iov, int id,
-                            hwaddr *req_len)
-{
-    uint32_t pad_offset;
-    uint32_t total_msg_len;
-    s->total_req_len += *req_len;
-
-    if (has_padding(s, &iov[id], *req_len, &total_msg_len, &pad_offset)) {
-        if (s->iov_count) {
-            return reconstruct_iov(s, iov, id, &pad_offset);
-        }
-
-        *req_len -= s->total_req_len - total_msg_len;
-        s->total_req_len = 0;
-        iov[id].iov_len = *req_len;
-    } else {
-        s->iov_cache[s->iov_count].iov_base = iov->iov_base;
-        s->iov_cache[s->iov_count].iov_len = *req_len;
-        ++s->iov_count;
-    }
-
-    return id + 1;
-}
-
 static void do_hash_operation(AspeedHACEState *s, int algo, bool sg_mode,
                               bool acc_mode)
 {
     struct iovec iov[ASPEED_HACE_MAX_SG];
+    uint32_t total_msg_len;
+    uint32_t pad_offset;
     g_autofree uint8_t *digest_buf = NULL;
     size_t digest_len = 0;
-    int niov = 0;
+    bool sg_acc_mode_final_request = false;
     int i;
     void *haddr;
+    Error *local_err = NULL;
+
+    if (acc_mode && s->hash_ctx == NULL) {
+        s->hash_ctx = qcrypto_hash_new(algo, &local_err);
+        if (s->hash_ctx == NULL) {
+            qemu_log_mask(LOG_GUEST_ERROR, "qcrypto hash failed : %s",
+                          error_get_pretty(local_err));
+            error_free(local_err);
+            return;
+        }
+    }
 
     if (sg_mode) {
         uint32_t len = 0;
@@ -226,8 +206,16 @@ static void do_hash_operation(AspeedHACEState *s, int algo, bool sg_mode,
             }
             iov[i].iov_base = haddr;
             if (acc_mode) {
-                niov = gen_acc_mode_iov(s, iov, i, &plen);
-
+                s->total_req_len += plen;
+
+                if (has_padding(s, &iov[i], plen, &total_msg_len,
+                                &pad_offset)) {
+                    /* Padding being present indicates the final request */
+                    sg_acc_mode_final_request = true;
+                    iov[i].iov_len = pad_offset;
+                } else {
+                    iov[i].iov_len = plen;
+                }
             } else {
                 iov[i].iov_len = plen;
             }
@@ -252,21 +240,42 @@ static void do_hash_operation(AspeedHACEState *s, int algo, bool sg_mode,
              * required to check whether cache is empty. If no, we should
              * combine cached iov and the current iov.
              */
-            uint32_t total_msg_len;
-            uint32_t pad_offset;
             s->total_req_len += len;
             if (has_padding(s, iov, len, &total_msg_len, &pad_offset)) {
-                niov = reconstruct_iov(s, iov, 0, &pad_offset);
+                i = reconstruct_iov(s, iov, 0, &pad_offset);
             }
         }
     }
 
-    if (niov) {
-        i = niov;
-    }
+    if (acc_mode) {
+        if (qcrypto_hash_updatev(s->hash_ctx, iov, i, &local_err) < 0) {
+            qemu_log_mask(LOG_GUEST_ERROR, "qcrypto hash update failed : %s",
+                          error_get_pretty(local_err));
+            error_free(local_err);
+            return;
+        }
+
+        if (sg_acc_mode_final_request) {
+            if (qcrypto_hash_finalize_bytes(s->hash_ctx, &digest_buf,
+                                            &digest_len, &local_err)) {
+                qemu_log_mask(LOG_GUEST_ERROR,
+                              "qcrypto hash finalize failed : %s",
+                              error_get_pretty(local_err));
+                error_free(local_err);
+                local_err = NULL;
+            }
 
-    if (qcrypto_hash_bytesv(algo, iov, i, &digest_buf, &digest_len, NULL) < 0) {
-        qemu_log_mask(LOG_GUEST_ERROR, "%s: qcrypto failed\n", __func__);
+            qcrypto_hash_free(s->hash_ctx);
+
+            s->hash_ctx = NULL;
+            s->iov_count = 0;
+            s->total_req_len = 0;
+        }
+    } else if (qcrypto_hash_bytesv(algo, iov, i, &digest_buf,
+                                   &digest_len, &local_err) < 0) {
+        qemu_log_mask(LOG_GUEST_ERROR, "qcrypto hash bytesv failed : %s",
+                      error_get_pretty(local_err));
+        error_free(local_err);
         return;
     }
 
@@ -397,6 +406,11 @@ static void aspeed_hace_reset(DeviceState *dev)
 {
     struct AspeedHACEState *s = ASPEED_HACE(dev);
 
+    if (s->hash_ctx != NULL) {
+        qcrypto_hash_free(s->hash_ctx);
+        s->hash_ctx = NULL;
+    }
+
     memset(s->regs, 0, sizeof(s->regs));
     s->iov_count = 0;
     s->total_req_len = 0;
diff --git a/hw/ssi/aspeed_smc.c b/hw/ssi/aspeed_smc.c
index e3fdc66cb2..033cbbb59b 100644
--- a/hw/ssi/aspeed_smc.c
+++ b/hw/ssi/aspeed_smc.c
@@ -417,7 +417,7 @@ static void aspeed_smc_flash_do_select(AspeedSMCFlash *fl, bool unselect)
     AspeedSMCState *s = fl->controller;
 
     trace_aspeed_smc_flash_select(fl->cs, unselect ? "un" : "");
-
+    s->unselect = unselect;
     qemu_set_irq(s->cs_lines[fl->cs], unselect);
 }
 
@@ -677,22 +677,35 @@ static const MemoryRegionOps aspeed_smc_flash_ops = {
 static void aspeed_smc_flash_update_ctrl(AspeedSMCFlash *fl, uint32_t value)
 {
     AspeedSMCState *s = fl->controller;
-    bool unselect;
+    bool unselect = false;
+    uint32_t old_mode;
+    uint32_t new_mode;
+
+    old_mode = s->regs[s->r_ctrl0 + fl->cs] & CTRL_CMD_MODE_MASK;
+    new_mode = value & CTRL_CMD_MODE_MASK;
 
-    /* User mode selects the CS, other modes unselect */
-    unselect = (value & CTRL_CMD_MODE_MASK) != CTRL_USERMODE;
+    if (old_mode == CTRL_USERMODE) {
+        if (new_mode != CTRL_USERMODE) {
+            unselect = true;
+        }
 
-    /* A change of CTRL_CE_STOP_ACTIVE from 0 to 1, unselects the CS */
-    if (!(s->regs[s->r_ctrl0 + fl->cs] & CTRL_CE_STOP_ACTIVE) &&
-        value & CTRL_CE_STOP_ACTIVE) {
-        unselect = true;
+        /* A change of CTRL_CE_STOP_ACTIVE from 0 to 1, unselects the CS */
+        if (!(s->regs[s->r_ctrl0 + fl->cs] & CTRL_CE_STOP_ACTIVE) &&
+            value & CTRL_CE_STOP_ACTIVE) {
+            unselect = true;
+        }
+    } else {
+        if (new_mode != CTRL_USERMODE) {
+            unselect = true;
+        }
     }
 
     s->regs[s->r_ctrl0 + fl->cs] = value;
 
-    s->snoop_index = unselect ? SNOOP_OFF : SNOOP_START;
-
-    aspeed_smc_flash_do_select(fl, unselect);
+    if (unselect != s->unselect) {
+        s->snoop_index = unselect ? SNOOP_OFF : SNOOP_START;
+        aspeed_smc_flash_do_select(fl, unselect);
+    }
 }
 
 static void aspeed_smc_reset(DeviceState *d)
@@ -729,6 +742,8 @@ static void aspeed_smc_reset(DeviceState *d)
         qemu_set_irq(s->cs_lines[i], true);
     }
 
+    s->unselect = true;
+
     /* setup the default segment register values and regions for all */
     for (i = 0; i < asc->cs_num_max; ++i) {
         aspeed_smc_flash_set_segment_region(s, i,
@@ -1261,12 +1276,13 @@ static void aspeed_smc_realize(DeviceState *dev, Error **errp)
 
 static const VMStateDescription vmstate_aspeed_smc = {
     .name = "aspeed.smc",
-    .version_id = 2,
+    .version_id = 3,
     .minimum_version_id = 2,
     .fields = (const VMStateField[]) {
         VMSTATE_UINT32_ARRAY(regs, AspeedSMCState, ASPEED_SMC_R_MAX),
         VMSTATE_UINT8(snoop_index, AspeedSMCState),
         VMSTATE_UINT8(snoop_dummies, AspeedSMCState),
+        VMSTATE_BOOL_V(unselect, AspeedSMCState, 3),
         VMSTATE_END_OF_LIST()
     }
 };