Add CDMA matmul sequencer

sdk/software/examples/asm/dma.h

@@ -18,6 +18,19 @@ typedef struct {
 #define CDMA_MUX_BASE 0xbf300000
 #define DMA_CH(i)     ((volatile dma_ch_regs_t*)(CDMA_MUX_BASE + (i) * 0x40))
 
+typedef struct {
+    volatile u32 CTRL;       // 0x200: bit0 start
+    volatile u32 STATUS;     // 0x204: bit0 busy, bit1 done (W1C)
+    volatile u32 SRC_BASE;   // 0x208
+    volatile u32 DST_BASE;   // 0x20C
+    volatile u32 GROUPS;     // 0x210
+    volatile u32 MAT_BASE;   // 0x214
+    volatile u32 SRC_STRIDE; // 0x218
+    volatile u32 DST_STRIDE; // 0x21C
+} dma_seq_regs_t;
+
+#define DMA_SEQ ((volatile dma_seq_regs_t*)(CDMA_MUX_BASE + 0x200))
+
 // CTRL 寄存器位定义
 #define CTRL_START_BIT       (1 << 0)
 #define CTRL_BURST_SIZE(x)   (((x) & 0x7) << 3)  // Bits [5:3]: AXI AxSIZE (0=1B, 1=2B, 2=4B, 3=8B)
@@ -33,5 +46,9 @@ typedef struct {
 #define STATUS_BUSY_BIT      (1 << 0)
 #define STATUS_DONE_BIT      (1 << 1)
 
+#define SEQ_START_BIT        (1 << 0)
+#define SEQ_BUSY_BIT         (1 << 0)
+#define SEQ_DONE_BIT         (1 << 1)
+
 void dma_start_transfer(int ch_id, u32 src, u32 dst, u32 bytes, u32 tag);
 void dma_wait_polling(int ch_id);