[PATCH v3 2/7] hw/riscv: k230: add gsdma in K230 board

This commit replaces the unimplemented part of GSDMA in K230. And connect the interrupt to plic.

Update K230.rst.

Signed-off-by: Tao Ding <[email protected]>
Reviewed-by: Junze Cao <[email protected]>
Reviewed-by: Daniel Henrique Barboza <[email protected]>
---
 docs/system/riscv/k230.rst |  1 +
 hw/riscv/Kconfig           |  1 +
 hw/riscv/k230.c            | 12 +++++++++---
 include/hw/riscv/k230.h    |  3 +++
 4 files changed, 14 insertions(+), 3 deletions(-)

diff --git a/docs/system/riscv/k230.rst b/docs/system/riscv/k230.rst
index cea8202e55..a426a1d776 100644
--- a/docs/system/riscv/k230.rst
+++ b/docs/system/riscv/k230.rst
@@ -20,6 +20,7 @@ The ``k230`` machine supports the following devices:
 * Platform-Level Interrupt Controller (PLIC)
 * 2 K230 Watchdog Timer
 * 5 UART
+* System Direct Memory Access (SDMA)
 
 Boot options
 ------------
diff --git a/hw/riscv/Kconfig b/hw/riscv/Kconfig
index de37c08cae..d28ac06043 100644
--- a/hw/riscv/Kconfig
+++ b/hw/riscv/Kconfig
@@ -162,3 +162,4 @@ config K230
     select SERIAL_MM
     select UNIMP
     select K230_WDT
+    select K230_GSDMA
diff --git a/hw/riscv/k230.c b/hw/riscv/k230.c
index 656f28190c..c80bd65694 100644
--- a/hw/riscv/k230.c
+++ b/hw/riscv/k230.c
@@ -110,6 +110,7 @@ static void k230_soc_init(Object *obj)
     object_initialize_child(obj, "c908-cpu", cpu0, TYPE_RISCV_HART_ARRAY);
     object_initialize_child(obj, "k230-wdt0", &s->wdt[0], TYPE_K230_WDT);
     object_initialize_child(obj, "k230-wdt1", &s->wdt[1], TYPE_K230_WDT);
+    object_initialize_child(obj, "k230-gsdma", &s->gsdma, TYPE_K230_GSDMA);
 
     qdev_prop_set_uint32(DEVICE(cpu0), "hartid-base", 0);
     qdev_prop_set_string(DEVICE(cpu0), "cpu-type", TYPE_RISCV_CPU_THEAD_C908);
@@ -206,6 +207,14 @@ static void k230_soc_realize(DeviceState *dev, Error **errp)
     sysbus_connect_irq(SYS_BUS_DEVICE(&s->wdt[1]), 0,
                        qdev_get_gpio_in(DEVICE(s->c908_plic), K230_WDT1_IRQ));
 
+    /* Gsdma */
+    if (!sysbus_realize(SYS_BUS_DEVICE(&s->gsdma), errp)) {
+        return;
+    }
+    sysbus_mmio_map(SYS_BUS_DEVICE(&s->gsdma), 0, memmap[K230_DEV_GSDMA].base);
+    sysbus_connect_irq(SYS_BUS_DEVICE(&s->gsdma), 0,
+                       qdev_get_gpio_in(DEVICE(s->c908_plic), K230_GSDMA_IRQ));
+
     /* unimplemented devices */
     create_unimplemented_device("kpu.l2-cache",
                                 memmap[K230_DEV_KPU_L2_CACHE].base,
@@ -221,9 +230,6 @@ static void k230_soc_realize(DeviceState *dev, Error **errp)
                                 memmap[K230_DEV_AI_2D_ENGINE].base,
                                 memmap[K230_DEV_AI_2D_ENGINE].size);
 
-    create_unimplemented_device("gsdma", memmap[K230_DEV_GSDMA].base,
-                                memmap[K230_DEV_GSDMA].size);
-
     create_unimplemented_device("dma", memmap[K230_DEV_DMA].base,
                                 memmap[K230_DEV_DMA].size);
 
diff --git a/include/hw/riscv/k230.h b/include/hw/riscv/k230.h
index 592e1c26bf..156a386edc 100644
--- a/include/hw/riscv/k230.h
+++ b/include/hw/riscv/k230.h
@@ -18,6 +18,7 @@
 #include "hw/core/boards.h"
 #include "hw/riscv/riscv_hart.h"
 #include "hw/watchdog/k230_wdt.h"
+#include "hw/dma/k230_gsdma.h"
 
 #define C908_CPU_HARTID   (0)
 
@@ -33,6 +34,7 @@ typedef struct K230SoCState {
     RISCVHartArrayState c908_cpu; /* Small core */
 
     K230WdtState wdt[2];
+    K230GSDMAState gsdma;
     MemoryRegion sram;
     MemoryRegion bootrom;
 
@@ -129,6 +131,7 @@ enum {
     K230_UART4_IRQ  = 20,
     K230_WDT0_IRQ   = 107,
     K230_WDT1_IRQ   = 108,
+    K230_GSDMA_IRQ  = 140,
 };
 
 #define K230_UART_COUNT 5
-- 
2.43.0