[PATCH 2/3] hw/riscv: sifive_e: Support the watchdog timer of HiFive 1 rev b.

[Tommy Wu]

Create the AON device when we realize the sifive_e machine.
This patch only implemented the functionality of the watchdog timer,
not all the functionality of the AON device.

Signed-off-by: Tommy Wu <tommy.wu@sifive.com>
---
 hw/riscv/Kconfig            | 1 +
 hw/riscv/sifive_e.c         | 5 +++--
 include/hw/riscv/sifive_e.h | 7 ++++---
 3 files changed, 8 insertions(+), 5 deletions(-)

diff --git a/hw/riscv/Kconfig b/hw/riscv/Kconfig
index 79ff61c464..50890b1b75 100644
--- a/hw/riscv/Kconfig
+++ b/hw/riscv/Kconfig
@@ -59,6 +59,7 @@ config SIFIVE_E
     select SIFIVE_PLIC
     select SIFIVE_UART
     select SIFIVE_E_PRCI
+    select SIFIVE_E_AON
     select UNIMP
 
 config SIFIVE_U
diff --git a/hw/riscv/sifive_e.c b/hw/riscv/sifive_e.c
index d65d2fd869..f9c05cfd3a 100644
--- a/hw/riscv/sifive_e.c
+++ b/hw/riscv/sifive_e.c
@@ -45,6 +45,7 @@
 #include "hw/intc/riscv_aclint.h"
 #include "hw/intc/sifive_plic.h"
 #include "hw/misc/sifive_e_prci.h"
+#include "hw/misc/sifive_e_aon.h"
 #include "chardev/char.h"
 #include "sysemu/sysemu.h"
 
@@ -222,8 +223,8 @@ static void sifive_e_soc_realize(DeviceState *dev, Error 
**errp)
         RISCV_ACLINT_DEFAULT_MTIMER_SIZE, 0, ms->smp.cpus,
         RISCV_ACLINT_DEFAULT_MTIMECMP, RISCV_ACLINT_DEFAULT_MTIME,
         RISCV_ACLINT_DEFAULT_TIMEBASE_FREQ, false);
-    create_unimplemented_device("riscv.sifive.e.aon",
-        memmap[SIFIVE_E_DEV_AON].base, memmap[SIFIVE_E_DEV_AON].size);
+    sifive_e_aon_create(sys_mem, memmap[SIFIVE_E_DEV_AON].base,
+        qdev_get_gpio_in(DEVICE(s->plic), SIFIVE_E_AON_WDT_IRQ));
     sifive_e_prci_create(memmap[SIFIVE_E_DEV_PRCI].base);
 
     /* GPIO */
diff --git a/include/hw/riscv/sifive_e.h b/include/hw/riscv/sifive_e.h
index 83604da805..7de2221564 100644
--- a/include/hw/riscv/sifive_e.h
+++ b/include/hw/riscv/sifive_e.h
@@ -75,9 +75,10 @@ enum {
 };
 
 enum {
-    SIFIVE_E_UART0_IRQ  = 3,
-    SIFIVE_E_UART1_IRQ  = 4,
-    SIFIVE_E_GPIO0_IRQ0 = 8
+    SIFIVE_E_AON_WDT_IRQ  = 1,
+    SIFIVE_E_UART0_IRQ    = 3,
+    SIFIVE_E_UART1_IRQ    = 4,
+    SIFIVE_E_GPIO0_IRQ0   = 8
 };
 
 #define SIFIVE_E_PLIC_HART_CONFIG "M"
-- 
2.27.0