diff mbox series

[v3,09/16] aspeed/smc: Add AST2700 support

Message ID 20240416091904.935283-10-jamin_lin@aspeedtech.com (mailing list archive)
State New, archived
Headers show
Series Add AST2700 support | expand

Commit Message

Jamin Lin April 16, 2024, 9:18 a.m. UTC 
AST2700 fmc/spi controller's address decoding unit is 64KB
and only bits [31:16] are used for decoding. Introduce seg_to_reg
and reg_to_seg handlers for ast2700 fmc/spi controller.
In addition, adds ast2700 fmc, spi0, spi1, and spi2 class init handler.

Signed-off-by: Troy Lee <troy_lee@aspeedtech.com>
Signed-off-by: Jamin Lin <jamin_lin@aspeedtech.com>
---
 hw/ssi/aspeed_smc.c | 222 +++++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 220 insertions(+), 2 deletions(-)

Comments

Cédric Le Goater April 18, 2024, 4:14 p.m. UTC | #1 
On 4/16/24 11:18, Jamin Lin wrote:
> AST2700 fmc/spi controller's address decoding unit is 64KB
> and only bits [31:16] are used for decoding. Introduce seg_to_reg
> and reg_to_seg handlers for ast2700 fmc/spi controller.
> In addition, adds ast2700 fmc, spi0, spi1, and spi2 class init handler.
> 
> Signed-off-by: Troy Lee <troy_lee@aspeedtech.com>
> Signed-off-by: Jamin Lin <jamin_lin@aspeedtech.com>


Reviewed-by: Cédric Le Goater <clg@kaod.org>

Thanks,

C.


> ---
>   hw/ssi/aspeed_smc.c | 222 +++++++++++++++++++++++++++++++++++++++++++-
>   1 file changed, 220 insertions(+), 2 deletions(-)
> 
> diff --git a/hw/ssi/aspeed_smc.c b/hw/ssi/aspeed_smc.c
> index a67cac3d0f..e768e5463c 100644
> --- a/hw/ssi/aspeed_smc.c
> +++ b/hw/ssi/aspeed_smc.c
> @@ -185,7 +185,7 @@
>    *   0: 4 bytes
>    *   0x7FFFFF: 32M bytes
>    *
> - * DMA length is from 1 byte to 32MB (AST2600, AST10x0)
> + * DMA length is from 1 byte to 32MB (AST2600, AST10x0 and AST2700)
>    *   0: 1 byte
>    *   0x1FFFFFF: 32M bytes
>    */
> @@ -670,7 +670,7 @@ static const MemoryRegionOps aspeed_smc_flash_ops = {
>       .endianness = DEVICE_LITTLE_ENDIAN,
>       .valid = {
>           .min_access_size = 1,
> -        .max_access_size = 4,
> +        .max_access_size = 8,
>       },
>   };
>   
> @@ -1951,6 +1951,220 @@ static const TypeInfo aspeed_1030_spi2_info = {
>       .class_init = aspeed_1030_spi2_class_init,
>   };
>   
> +/*
> + * The FMC Segment Registers of the AST2700 have a 64KB unit.
> + * Only bits [31:16] are used for decoding.
> + */
> +#define AST2700_SEG_ADDR_MASK 0xffff0000
> +
> +static uint32_t aspeed_2700_smc_segment_to_reg(const AspeedSMCState *s,
> +                                               const AspeedSegments *seg)
> +{
> +    uint32_t reg = 0;
> +
> +    /* Disabled segments have a nil register */
> +    if (!seg->size) {
> +        return 0;
> +    }
> +
> +    reg |= (seg->addr & AST2700_SEG_ADDR_MASK) >> 16; /* start offset */
> +    reg |= (seg->addr + seg->size - 1) & AST2700_SEG_ADDR_MASK; /* end offset */
> +    return reg;
> +}
> +
> +static void aspeed_2700_smc_reg_to_segment(const AspeedSMCState *s,
> +                                           uint32_t reg, AspeedSegments *seg)
> +{
> +    uint32_t start_offset = (reg << 16) & AST2700_SEG_ADDR_MASK;
> +    uint32_t end_offset = reg & AST2700_SEG_ADDR_MASK;
> +    AspeedSMCClass *asc = ASPEED_SMC_GET_CLASS(s);
> +
> +    if (reg) {
> +        seg->addr = asc->flash_window_base + start_offset;
> +        seg->size = end_offset + (64 * KiB) - start_offset;
> +    } else {
> +        seg->addr = asc->flash_window_base;
> +        seg->size = 0;
> +    }
> +}
> +
> +static const uint32_t aspeed_2700_fmc_resets[ASPEED_SMC_R_MAX] = {
> +    [R_CONF] = (CONF_FLASH_TYPE_SPI << CONF_FLASH_TYPE0 |
> +            CONF_FLASH_TYPE_SPI << CONF_FLASH_TYPE1),
> +    [R_CE_CTRL] = 0x0000aa00,
> +    [R_CTRL0] = 0x406b0641,
> +    [R_CTRL1] = 0x00000400,
> +    [R_CTRL2] = 0x00000400,
> +    [R_CTRL3] = 0x00000400,
> +    [R_SEG_ADDR0] = 0x08000000,
> +    [R_SEG_ADDR1] = 0x10000800,
> +    [R_SEG_ADDR2] = 0x00000000,
> +    [R_SEG_ADDR3] = 0x00000000,
> +    [R_DUMMY_DATA] = 0x00010000,
> +    [R_DMA_DRAM_ADDR_HIGH] = 0x00000000,
> +    [R_TIMINGS] = 0x007b0000,
> +};
> +
> +static const AspeedSegments aspeed_2700_fmc_segments[] = {
> +    { 0x0, 128 * MiB }, /* start address is readonly */
> +    { 128 * MiB, 128 * MiB }, /* default is disabled but needed for -kernel */
> +    { 256 * MiB, 128 * MiB }, /* default is disabled but needed for -kernel */
> +    { 0x0, 0 }, /* disabled */
> +};
> +
> +static void aspeed_2700_fmc_class_init(ObjectClass *klass, void *data)
> +{
> +    DeviceClass *dc = DEVICE_CLASS(klass);
> +    AspeedSMCClass *asc = ASPEED_SMC_CLASS(klass);
> +
> +    dc->desc               = "Aspeed 2700 FMC Controller";
> +    asc->r_conf            = R_CONF;
> +    asc->r_ce_ctrl         = R_CE_CTRL;
> +    asc->r_ctrl0           = R_CTRL0;
> +    asc->r_timings         = R_TIMINGS;
> +    asc->nregs_timings     = 3;
> +    asc->conf_enable_w0    = CONF_ENABLE_W0;
> +    asc->cs_num_max        = 3;
> +    asc->segments          = aspeed_2700_fmc_segments;
> +    asc->segment_addr_mask = 0xffffffff;
> +    asc->resets            = aspeed_2700_fmc_resets;
> +    asc->flash_window_base = 0x100000000;
> +    asc->flash_window_size = 1 * GiB;
> +    asc->features          = ASPEED_SMC_FEATURE_DMA |
> +                             ASPEED_SMC_FEATURE_DMA_DRAM_ADDR_HIGH;
> +    asc->dma_flash_mask    = 0x2FFFFFFC;
> +    asc->dma_dram_mask     = 0xFFFFFFFC;
> +    asc->dma_start_length  = 1;
> +    asc->nregs             = ASPEED_SMC_R_MAX;
> +    asc->segment_to_reg    = aspeed_2700_smc_segment_to_reg;
> +    asc->reg_to_segment    = aspeed_2700_smc_reg_to_segment;
> +    asc->dma_ctrl          = aspeed_2600_smc_dma_ctrl;
> +}
> +
> +static const TypeInfo aspeed_2700_fmc_info = {
> +    .name =  "aspeed.fmc-ast2700",
> +    .parent = TYPE_ASPEED_SMC,
> +    .class_init = aspeed_2700_fmc_class_init,
> +};
> +
> +static const AspeedSegments aspeed_2700_spi0_segments[] = {
> +    { 0x0, 128 * MiB }, /* start address is readonly */
> +    { 128 * MiB, 128 * MiB }, /* start address is readonly */
> +    { 0x0, 0 }, /* disabled */
> +};
> +
> +static void aspeed_2700_spi0_class_init(ObjectClass *klass, void *data)
> +{
> +    DeviceClass *dc = DEVICE_CLASS(klass);
> +    AspeedSMCClass *asc = ASPEED_SMC_CLASS(klass);
> +
> +    dc->desc               = "Aspeed 2700 SPI0 Controller";
> +    asc->r_conf            = R_CONF;
> +    asc->r_ce_ctrl         = R_CE_CTRL;
> +    asc->r_ctrl0           = R_CTRL0;
> +    asc->r_timings         = R_TIMINGS;
> +    asc->nregs_timings     = 2;
> +    asc->conf_enable_w0    = CONF_ENABLE_W0;
> +    asc->cs_num_max        = 2;
> +    asc->segments          = aspeed_2700_spi0_segments;
> +    asc->segment_addr_mask = 0xffffffff;
> +    asc->flash_window_base = 0x180000000;
> +    asc->flash_window_size = 1 * GiB;
> +    asc->features          = ASPEED_SMC_FEATURE_DMA |
> +                             ASPEED_SMC_FEATURE_DMA_DRAM_ADDR_HIGH;
> +    asc->dma_flash_mask    = 0x2FFFFFFC;
> +    asc->dma_dram_mask     = 0xFFFFFFFC;
> +    asc->dma_start_length  = 1;
> +    asc->nregs             = ASPEED_SMC_R_MAX;
> +    asc->segment_to_reg    = aspeed_2700_smc_segment_to_reg;
> +    asc->reg_to_segment    = aspeed_2700_smc_reg_to_segment;
> +    asc->dma_ctrl          = aspeed_2600_smc_dma_ctrl;
> +}
> +
> +static const TypeInfo aspeed_2700_spi0_info = {
> +    .name =  "aspeed.spi0-ast2700",
> +    .parent = TYPE_ASPEED_SMC,
> +    .class_init = aspeed_2700_spi0_class_init,
> +};
> +
> +static const AspeedSegments aspeed_2700_spi1_segments[] = {
> +    { 0x0, 128 * MiB }, /* start address is readonly */
> +    { 0x0, 0 }, /* disabled */
> +};
> +
> +static void aspeed_2700_spi1_class_init(ObjectClass *klass, void *data)
> +{
> +    DeviceClass *dc = DEVICE_CLASS(klass);
> +    AspeedSMCClass *asc = ASPEED_SMC_CLASS(klass);
> +
> +    dc->desc               = "Aspeed 2700 SPI1 Controller";
> +    asc->r_conf            = R_CONF;
> +    asc->r_ce_ctrl         = R_CE_CTRL;
> +    asc->r_ctrl0           = R_CTRL0;
> +    asc->r_timings         = R_TIMINGS;
> +    asc->nregs_timings     = 2;
> +    asc->conf_enable_w0    = CONF_ENABLE_W0;
> +    asc->cs_num_max        = 2;
> +    asc->segments          = aspeed_2700_spi1_segments;
> +    asc->segment_addr_mask = 0xffffffff;
> +    asc->flash_window_base = 0x200000000;
> +    asc->flash_window_size = 1 * GiB;
> +    asc->features          = ASPEED_SMC_FEATURE_DMA |
> +                             ASPEED_SMC_FEATURE_DMA_DRAM_ADDR_HIGH;
> +    asc->dma_flash_mask    = 0x2FFFFFFC;
> +    asc->dma_dram_mask     = 0xFFFFFFFC;
> +    asc->dma_start_length  = 1;
> +    asc->nregs             = ASPEED_SMC_R_MAX;
> +    asc->segment_to_reg    = aspeed_2700_smc_segment_to_reg;
> +    asc->reg_to_segment    = aspeed_2700_smc_reg_to_segment;
> +    asc->dma_ctrl          = aspeed_2600_smc_dma_ctrl;
> +}
> +
> +static const TypeInfo aspeed_2700_spi1_info = {
> +        .name =  "aspeed.spi1-ast2700",
> +        .parent = TYPE_ASPEED_SMC,
> +        .class_init = aspeed_2700_spi1_class_init,
> +};
> +
> +static const AspeedSegments aspeed_2700_spi2_segments[] = {
> +    { 0x0, 128 * MiB }, /* start address is readonly */
> +    { 0x0, 0 }, /* disabled */
> +};
> +
> +static void aspeed_2700_spi2_class_init(ObjectClass *klass, void *data)
> +{
> +    DeviceClass *dc = DEVICE_CLASS(klass);
> +    AspeedSMCClass *asc = ASPEED_SMC_CLASS(klass);
> +
> +    dc->desc               = "Aspeed 2700 SPI2 Controller";
> +    asc->r_conf            = R_CONF;
> +    asc->r_ce_ctrl         = R_CE_CTRL;
> +    asc->r_ctrl0           = R_CTRL0;
> +    asc->r_timings         = R_TIMINGS;
> +    asc->nregs_timings     = 2;
> +    asc->conf_enable_w0    = CONF_ENABLE_W0;
> +    asc->cs_num_max        = 2;
> +    asc->segments          = aspeed_2700_spi2_segments;
> +    asc->segment_addr_mask = 0xffffffff;
> +    asc->flash_window_base = 0x280000000;
> +    asc->flash_window_size = 1 * GiB;
> +    asc->features          = ASPEED_SMC_FEATURE_DMA |
> +                             ASPEED_SMC_FEATURE_DMA_DRAM_ADDR_HIGH;
> +    asc->dma_flash_mask    = 0x0FFFFFFC;
> +    asc->dma_dram_mask     = 0xFFFFFFFC;
> +    asc->dma_start_length  = 1;
> +    asc->nregs             = ASPEED_SMC_R_MAX;
> +    asc->segment_to_reg    = aspeed_2700_smc_segment_to_reg;
> +    asc->reg_to_segment    = aspeed_2700_smc_reg_to_segment;
> +    asc->dma_ctrl          = aspeed_2600_smc_dma_ctrl;
> +}
> +
> +static const TypeInfo aspeed_2700_spi2_info = {
> +        .name =  "aspeed.spi2-ast2700",
> +        .parent = TYPE_ASPEED_SMC,
> +        .class_init = aspeed_2700_spi2_class_init,
> +};
> +
>   static void aspeed_smc_register_types(void)
>   {
>       type_register_static(&aspeed_smc_flash_info);
> @@ -1967,6 +2181,10 @@ static void aspeed_smc_register_types(void)
>       type_register_static(&aspeed_1030_fmc_info);
>       type_register_static(&aspeed_1030_spi1_info);
>       type_register_static(&aspeed_1030_spi2_info);
> +    type_register_static(&aspeed_2700_fmc_info);
> +    type_register_static(&aspeed_2700_spi0_info);
> +    type_register_static(&aspeed_2700_spi1_info);
> +    type_register_static(&aspeed_2700_spi2_info);
>   }
>   
>   type_init(aspeed_smc_register_types)
diff mbox series

Patch

diff --git a/hw/ssi/aspeed_smc.c b/hw/ssi/aspeed_smc.c
index a67cac3d0f..e768e5463c 100644
--- a/hw/ssi/aspeed_smc.c
+++ b/hw/ssi/aspeed_smc.c
@@ -185,7 +185,7 @@ 
  *   0: 4 bytes
  *   0x7FFFFF: 32M bytes
  *
- * DMA length is from 1 byte to 32MB (AST2600, AST10x0)
+ * DMA length is from 1 byte to 32MB (AST2600, AST10x0 and AST2700)
  *   0: 1 byte
  *   0x1FFFFFF: 32M bytes
  */
@@ -670,7 +670,7 @@  static const MemoryRegionOps aspeed_smc_flash_ops = {
     .endianness = DEVICE_LITTLE_ENDIAN,
     .valid = {
         .min_access_size = 1,
-        .max_access_size = 4,
+        .max_access_size = 8,
     },
 };
 
@@ -1951,6 +1951,220 @@  static const TypeInfo aspeed_1030_spi2_info = {
     .class_init = aspeed_1030_spi2_class_init,
 };
 
+/*
+ * The FMC Segment Registers of the AST2700 have a 64KB unit.
+ * Only bits [31:16] are used for decoding.
+ */
+#define AST2700_SEG_ADDR_MASK 0xffff0000
+
+static uint32_t aspeed_2700_smc_segment_to_reg(const AspeedSMCState *s,
+                                               const AspeedSegments *seg)
+{
+    uint32_t reg = 0;
+
+    /* Disabled segments have a nil register */
+    if (!seg->size) {
+        return 0;
+    }
+
+    reg |= (seg->addr & AST2700_SEG_ADDR_MASK) >> 16; /* start offset */
+    reg |= (seg->addr + seg->size - 1) & AST2700_SEG_ADDR_MASK; /* end offset */
+    return reg;
+}
+
+static void aspeed_2700_smc_reg_to_segment(const AspeedSMCState *s,
+                                           uint32_t reg, AspeedSegments *seg)
+{
+    uint32_t start_offset = (reg << 16) & AST2700_SEG_ADDR_MASK;
+    uint32_t end_offset = reg & AST2700_SEG_ADDR_MASK;
+    AspeedSMCClass *asc = ASPEED_SMC_GET_CLASS(s);
+
+    if (reg) {
+        seg->addr = asc->flash_window_base + start_offset;
+        seg->size = end_offset + (64 * KiB) - start_offset;
+    } else {
+        seg->addr = asc->flash_window_base;
+        seg->size = 0;
+    }
+}
+
+static const uint32_t aspeed_2700_fmc_resets[ASPEED_SMC_R_MAX] = {
+    [R_CONF] = (CONF_FLASH_TYPE_SPI << CONF_FLASH_TYPE0 |
+            CONF_FLASH_TYPE_SPI << CONF_FLASH_TYPE1),
+    [R_CE_CTRL] = 0x0000aa00,
+    [R_CTRL0] = 0x406b0641,
+    [R_CTRL1] = 0x00000400,
+    [R_CTRL2] = 0x00000400,
+    [R_CTRL3] = 0x00000400,
+    [R_SEG_ADDR0] = 0x08000000,
+    [R_SEG_ADDR1] = 0x10000800,
+    [R_SEG_ADDR2] = 0x00000000,
+    [R_SEG_ADDR3] = 0x00000000,
+    [R_DUMMY_DATA] = 0x00010000,
+    [R_DMA_DRAM_ADDR_HIGH] = 0x00000000,
+    [R_TIMINGS] = 0x007b0000,
+};
+
+static const AspeedSegments aspeed_2700_fmc_segments[] = {
+    { 0x0, 128 * MiB }, /* start address is readonly */
+    { 128 * MiB, 128 * MiB }, /* default is disabled but needed for -kernel */
+    { 256 * MiB, 128 * MiB }, /* default is disabled but needed for -kernel */
+    { 0x0, 0 }, /* disabled */
+};
+
+static void aspeed_2700_fmc_class_init(ObjectClass *klass, void *data)
+{
+    DeviceClass *dc = DEVICE_CLASS(klass);
+    AspeedSMCClass *asc = ASPEED_SMC_CLASS(klass);
+
+    dc->desc               = "Aspeed 2700 FMC Controller";
+    asc->r_conf            = R_CONF;
+    asc->r_ce_ctrl         = R_CE_CTRL;
+    asc->r_ctrl0           = R_CTRL0;
+    asc->r_timings         = R_TIMINGS;
+    asc->nregs_timings     = 3;
+    asc->conf_enable_w0    = CONF_ENABLE_W0;
+    asc->cs_num_max        = 3;
+    asc->segments          = aspeed_2700_fmc_segments;
+    asc->segment_addr_mask = 0xffffffff;
+    asc->resets            = aspeed_2700_fmc_resets;
+    asc->flash_window_base = 0x100000000;
+    asc->flash_window_size = 1 * GiB;
+    asc->features          = ASPEED_SMC_FEATURE_DMA |
+                             ASPEED_SMC_FEATURE_DMA_DRAM_ADDR_HIGH;
+    asc->dma_flash_mask    = 0x2FFFFFFC;
+    asc->dma_dram_mask     = 0xFFFFFFFC;
+    asc->dma_start_length  = 1;
+    asc->nregs             = ASPEED_SMC_R_MAX;
+    asc->segment_to_reg    = aspeed_2700_smc_segment_to_reg;
+    asc->reg_to_segment    = aspeed_2700_smc_reg_to_segment;
+    asc->dma_ctrl          = aspeed_2600_smc_dma_ctrl;
+}
+
+static const TypeInfo aspeed_2700_fmc_info = {
+    .name =  "aspeed.fmc-ast2700",
+    .parent = TYPE_ASPEED_SMC,
+    .class_init = aspeed_2700_fmc_class_init,
+};
+
+static const AspeedSegments aspeed_2700_spi0_segments[] = {
+    { 0x0, 128 * MiB }, /* start address is readonly */
+    { 128 * MiB, 128 * MiB }, /* start address is readonly */
+    { 0x0, 0 }, /* disabled */
+};
+
+static void aspeed_2700_spi0_class_init(ObjectClass *klass, void *data)
+{
+    DeviceClass *dc = DEVICE_CLASS(klass);
+    AspeedSMCClass *asc = ASPEED_SMC_CLASS(klass);
+
+    dc->desc               = "Aspeed 2700 SPI0 Controller";
+    asc->r_conf            = R_CONF;
+    asc->r_ce_ctrl         = R_CE_CTRL;
+    asc->r_ctrl0           = R_CTRL0;
+    asc->r_timings         = R_TIMINGS;
+    asc->nregs_timings     = 2;
+    asc->conf_enable_w0    = CONF_ENABLE_W0;
+    asc->cs_num_max        = 2;
+    asc->segments          = aspeed_2700_spi0_segments;
+    asc->segment_addr_mask = 0xffffffff;
+    asc->flash_window_base = 0x180000000;
+    asc->flash_window_size = 1 * GiB;
+    asc->features          = ASPEED_SMC_FEATURE_DMA |
+                             ASPEED_SMC_FEATURE_DMA_DRAM_ADDR_HIGH;
+    asc->dma_flash_mask    = 0x2FFFFFFC;
+    asc->dma_dram_mask     = 0xFFFFFFFC;
+    asc->dma_start_length  = 1;
+    asc->nregs             = ASPEED_SMC_R_MAX;
+    asc->segment_to_reg    = aspeed_2700_smc_segment_to_reg;
+    asc->reg_to_segment    = aspeed_2700_smc_reg_to_segment;
+    asc->dma_ctrl          = aspeed_2600_smc_dma_ctrl;
+}
+
+static const TypeInfo aspeed_2700_spi0_info = {
+    .name =  "aspeed.spi0-ast2700",
+    .parent = TYPE_ASPEED_SMC,
+    .class_init = aspeed_2700_spi0_class_init,
+};
+
+static const AspeedSegments aspeed_2700_spi1_segments[] = {
+    { 0x0, 128 * MiB }, /* start address is readonly */
+    { 0x0, 0 }, /* disabled */
+};
+
+static void aspeed_2700_spi1_class_init(ObjectClass *klass, void *data)
+{
+    DeviceClass *dc = DEVICE_CLASS(klass);
+    AspeedSMCClass *asc = ASPEED_SMC_CLASS(klass);
+
+    dc->desc               = "Aspeed 2700 SPI1 Controller";
+    asc->r_conf            = R_CONF;
+    asc->r_ce_ctrl         = R_CE_CTRL;
+    asc->r_ctrl0           = R_CTRL0;
+    asc->r_timings         = R_TIMINGS;
+    asc->nregs_timings     = 2;
+    asc->conf_enable_w0    = CONF_ENABLE_W0;
+    asc->cs_num_max        = 2;
+    asc->segments          = aspeed_2700_spi1_segments;
+    asc->segment_addr_mask = 0xffffffff;
+    asc->flash_window_base = 0x200000000;
+    asc->flash_window_size = 1 * GiB;
+    asc->features          = ASPEED_SMC_FEATURE_DMA |
+                             ASPEED_SMC_FEATURE_DMA_DRAM_ADDR_HIGH;
+    asc->dma_flash_mask    = 0x2FFFFFFC;
+    asc->dma_dram_mask     = 0xFFFFFFFC;
+    asc->dma_start_length  = 1;
+    asc->nregs             = ASPEED_SMC_R_MAX;
+    asc->segment_to_reg    = aspeed_2700_smc_segment_to_reg;
+    asc->reg_to_segment    = aspeed_2700_smc_reg_to_segment;
+    asc->dma_ctrl          = aspeed_2600_smc_dma_ctrl;
+}
+
+static const TypeInfo aspeed_2700_spi1_info = {
+        .name =  "aspeed.spi1-ast2700",
+        .parent = TYPE_ASPEED_SMC,
+        .class_init = aspeed_2700_spi1_class_init,
+};
+
+static const AspeedSegments aspeed_2700_spi2_segments[] = {
+    { 0x0, 128 * MiB }, /* start address is readonly */
+    { 0x0, 0 }, /* disabled */
+};
+
+static void aspeed_2700_spi2_class_init(ObjectClass *klass, void *data)
+{
+    DeviceClass *dc = DEVICE_CLASS(klass);
+    AspeedSMCClass *asc = ASPEED_SMC_CLASS(klass);
+
+    dc->desc               = "Aspeed 2700 SPI2 Controller";
+    asc->r_conf            = R_CONF;
+    asc->r_ce_ctrl         = R_CE_CTRL;
+    asc->r_ctrl0           = R_CTRL0;
+    asc->r_timings         = R_TIMINGS;
+    asc->nregs_timings     = 2;
+    asc->conf_enable_w0    = CONF_ENABLE_W0;
+    asc->cs_num_max        = 2;
+    asc->segments          = aspeed_2700_spi2_segments;
+    asc->segment_addr_mask = 0xffffffff;
+    asc->flash_window_base = 0x280000000;
+    asc->flash_window_size = 1 * GiB;
+    asc->features          = ASPEED_SMC_FEATURE_DMA |
+                             ASPEED_SMC_FEATURE_DMA_DRAM_ADDR_HIGH;
+    asc->dma_flash_mask    = 0x0FFFFFFC;
+    asc->dma_dram_mask     = 0xFFFFFFFC;
+    asc->dma_start_length  = 1;
+    asc->nregs             = ASPEED_SMC_R_MAX;
+    asc->segment_to_reg    = aspeed_2700_smc_segment_to_reg;
+    asc->reg_to_segment    = aspeed_2700_smc_reg_to_segment;
+    asc->dma_ctrl          = aspeed_2600_smc_dma_ctrl;
+}
+
+static const TypeInfo aspeed_2700_spi2_info = {
+        .name =  "aspeed.spi2-ast2700",
+        .parent = TYPE_ASPEED_SMC,
+        .class_init = aspeed_2700_spi2_class_init,
+};
+
 static void aspeed_smc_register_types(void)
 {
     type_register_static(&aspeed_smc_flash_info);
@@ -1967,6 +2181,10 @@  static void aspeed_smc_register_types(void)
     type_register_static(&aspeed_1030_fmc_info);
     type_register_static(&aspeed_1030_spi1_info);
     type_register_static(&aspeed_1030_spi2_info);
+    type_register_static(&aspeed_2700_fmc_info);
+    type_register_static(&aspeed_2700_spi0_info);
+    type_register_static(&aspeed_2700_spi1_info);
+    type_register_static(&aspeed_2700_spi2_info);
 }
 
 type_init(aspeed_smc_register_types)