[Qemu-devel] [RFC v4 2/5] hw/arm/digic: prepare DIGIC-based boards support

[Antony Pavlov <antonynpavlov@gmail.com>]

Also this patch adds initial support for Canon
PowerShot A1100 IS compact camera.

Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>
---
 hw/arm/Makefile.objs  |  2 +-
 hw/arm/digic_boards.c | 63 +++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 64 insertions(+), 1 deletion(-)
 create mode 100644 hw/arm/digic_boards.c

diff --git a/hw/arm/Makefile.objs b/hw/arm/Makefile.objs
index e140485..f6e9533 100644
--- a/hw/arm/Makefile.objs
+++ b/hw/arm/Makefile.objs
@@ -1,4 +1,4 @@
-obj-y += boot.o collie.o exynos4_boards.o gumstix.o highbank.o
+obj-y += boot.o collie.o digic_boards.o exynos4_boards.o gumstix.o highbank.o
 obj-y += integratorcp.o kzm.o mainstone.o musicpal.o nseries.o
 obj-y += omap_sx1.o palm.o realview.o spitz.o stellaris.o
 obj-y += tosa.o versatilepb.o vexpress.o xilinx_zynq.o z2.o
diff --git a/hw/arm/digic_boards.c b/hw/arm/digic_boards.c
new file mode 100644
index 0000000..0b99227
--- /dev/null
+++ b/hw/arm/digic_boards.c
@@ -0,0 +1,63 @@
+#include "hw/boards.h"
+#include "exec/address-spaces.h"
+#include "hw/arm/digic.h"
+
+typedef struct DigicBoardState {
+    DigicState *digic;
+    MemoryRegion ram;
+} DigicBoardState;
+
+typedef struct DigicBoard {
+    hwaddr ram_size;
+    hwaddr start_addr;
+} DigicBoard;
+
+static void digic4_board_setup_ram(DigicBoardState *s, hwaddr ram_size)
+{
+    memory_region_init_ram(&s->ram, NULL, "ram", ram_size);
+    memory_region_add_subregion(get_system_memory(), 0, &s->ram);
+    vmstate_register_ram_global(&s->ram);
+}
+
+static void digic4_board_init(DigicBoard *board)
+{
+    Error *err = NULL;
+
+    DigicBoardState *s = g_new(DigicBoardState, 1);
+
+    s->digic = DIGIC(object_new(TYPE_DIGIC));
+    object_property_set_bool(OBJECT(s->digic), true, "realized", &err);
+    if (err != NULL) {
+        fprintf(stderr, "Couldn't realize DIGIC SoC: %s\n",
+                error_get_pretty(err));
+        exit(1);
+    }
+
+    digic4_board_setup_ram(s, board->ram_size);
+
+    s->digic->cpu.env.regs[15] = board->start_addr;
+}
+
+static DigicBoard digic4_board_canon_a1100 = {
+    .ram_size = 64 * 1024 * 1024,
+    /* CHDK recommends this address for ROM disassembly */
+    .start_addr = 0xffc00000,
+};
+
+static void canon_a1100_init(QEMUMachineInitArgs *args)
+{
+    digic4_board_init(&digic4_board_canon_a1100);
+}
+
+static QEMUMachine canon_a1100 = {
+    .name = "canon-a1100",
+    .desc = "Canon PowerShot A1100 IS",
+    .init = &canon_a1100_init,
+};
+
+static void digic_register_machines(void)
+{
+    qemu_register_machine(&canon_a1100);
+}
+
+machine_init(digic_register_machines)
-- 
1.8.4.rc3