[PATCH v3 3/5] hw/arm: xlnx-zynqmp: Add XLNX CSU DMA module

[Bin Meng]

From: Xuzhou Cheng <xuzhou.cheng@windriver.com>

Insert XLNX CSU DMA module to ZynqMP SoC, and connent the stream
link of GQSPI to CSU DMA.

Signed-off-by: Xuzhou Cheng <xuzhou.cheng@windriver.com>
Signed-off-by: Bin Meng <bin.meng@windriver.com>

---

Changes in v3:
- new patch: xlnx-zynqmp: Add XLNX CSU DMA module

 include/hw/arm/xlnx-zynqmp.h |  2 ++
 hw/arm/xlnx-zynqmp.c         | 14 ++++++++++++++
 hw/arm/Kconfig               |  1 +
 3 files changed, 17 insertions(+)

diff --git a/include/hw/arm/xlnx-zynqmp.h b/include/hw/arm/xlnx-zynqmp.h
index be15cc8..d387c85 100644
--- a/include/hw/arm/xlnx-zynqmp.h
+++ b/include/hw/arm/xlnx-zynqmp.h
@@ -35,6 +35,7 @@
 #include "target/arm/cpu.h"
 #include "qom/object.h"
 #include "net/can_emu.h"
+#include "hw/dma/xlnx_csu_dma.h"
 
 #define TYPE_XLNX_ZYNQMP "xlnx,zynqmp"
 OBJECT_DECLARE_SIMPLE_TYPE(XlnxZynqMPState, XLNX_ZYNQMP)
@@ -108,6 +109,7 @@ struct XlnxZynqMPState {
     XlnxZynqMPRTC rtc;
     XlnxZDMA gdma[XLNX_ZYNQMP_NUM_GDMA_CH];
     XlnxZDMA adma[XLNX_ZYNQMP_NUM_ADMA_CH];
+    XlnxCSUDMA csu_dma;
 
     char *boot_cpu;
     ARMCPU *boot_cpu_ptr;
diff --git a/hw/arm/xlnx-zynqmp.c b/hw/arm/xlnx-zynqmp.c
index 76b94a5..ed34692 100644
--- a/hw/arm/xlnx-zynqmp.c
+++ b/hw/arm/xlnx-zynqmp.c
@@ -63,6 +63,9 @@
 #define RTC_ADDR            0xffa60000
 #define RTC_IRQ             26
 
+#define CSU_DMA_ADDR        0xff0f0800
+#define CSU_DMA_IRQ         15
+
 #define SDHCI_CAPABILITIES  0x280737ec6481 /* Datasheet: UG1085 (v1.7) */
 
 static const uint64_t gem_addr[XLNX_ZYNQMP_NUM_GEMS] = {
@@ -284,6 +287,8 @@ static void xlnx_zynqmp_init(Object *obj)
     for (i = 0; i < XLNX_ZYNQMP_NUM_ADMA_CH; i++) {
         object_initialize_child(obj, "adma[*]", &s->adma[i], TYPE_XLNX_ZDMA);
     }
+
+    object_initialize_child(obj, "csu-dma", &s->csu_dma, TYPE_XLNX_CSU_DMA);
 }
 
 static void xlnx_zynqmp_realize(DeviceState *dev, Error **errp)
@@ -643,6 +648,15 @@ static void xlnx_zynqmp_realize(DeviceState *dev, Error 
**errp)
         sysbus_connect_irq(SYS_BUS_DEVICE(&s->adma[i]), 0,
                            gic_spi[adma_ch_intr[i]]);
     }
+
+    if (!sysbus_realize(SYS_BUS_DEVICE(&s->csu_dma), errp)) {
+        return;
+    }
+
+    sysbus_mmio_map(SYS_BUS_DEVICE(&s->csu_dma), 0, CSU_DMA_ADDR);
+    sysbus_connect_irq(SYS_BUS_DEVICE(&s->csu_dma), 0, gic_spi[CSU_DMA_IRQ]);
+    object_property_set_link(OBJECT(&s->qspi), "stream-connected-dma",
+                             OBJECT(&s->csu_dma), errp);
 }
 
 static Property xlnx_zynqmp_props[] = {
diff --git a/hw/arm/Kconfig b/hw/arm/Kconfig
index be017b9..0c0384c 100644
--- a/hw/arm/Kconfig
+++ b/hw/arm/Kconfig
@@ -353,6 +353,7 @@ config XLNX_ZYNQMP_ARM
     select SSI_M25P80
     select XILINX_AXI
     select XILINX_SPIPS
+    select XLNX_CSU_DMA
     select XLNX_ZYNQMP
     select XLNX_ZDMA
 
-- 
2.7.4