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_...@aspeedtech.com>
Signed-off-by: Jamin Lin <jamin_...@aspeedtech.com>
---
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)
--
2.25.1
