diff options
| author | Peter Crosthwaite <peter.crosthwaite@xilinx.com> | 2015-05-14 19:23:27 -0700 |
|---|---|---|
| committer | Peter Maydell <peter.maydell@linaro.org> | 2015-05-18 16:41:14 +0100 |
| commit | b79b9d28f6b8f7879c50b6c053b4e3796de5b7d0 (patch) | |
| tree | 060d1fee224d52653c2fd3577a3603faa99f89c2 /hw/arm/xlnx-ep108.c | |
| parent | 859a0c5b5fb8be0c1ed78d96695a162c9210e1e6 (diff) | |
arm: xlnx-ep108: Add external RAM
Zynq MPSoC supports external DDR RAM. Add a RAM at 0 to the model.
Reviewed-by: Alistair Francis <alistair.francis@xilinx.com>
Tested-by: Alistair Francis <alistair.francis@xilinx.com>
Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Message-id: 2c25e2a4198402a6477aef2975d5df7c415dd341.1431381507.git.peter.crosthwaite@xilinx.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Diffstat (limited to 'hw/arm/xlnx-ep108.c')
| -rw-r--r-- | hw/arm/xlnx-ep108.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/hw/arm/xlnx-ep108.c b/hw/arm/xlnx-ep108.c index 81704bb8f1..46f145b97d 100644 --- a/hw/arm/xlnx-ep108.c +++ b/hw/arm/xlnx-ep108.c @@ -18,11 +18,16 @@ #include "hw/arm/xlnx-zynqmp.h" #include "hw/boards.h" #include "qemu/error-report.h" +#include "exec/address-spaces.h" typedef struct XlnxEP108 { XlnxZynqMPState soc; + MemoryRegion ddr_ram; } XlnxEP108; +/* Max 2GB RAM */ +#define EP108_MAX_RAM_SIZE 0x80000000ull + static void xlnx_ep108_init(MachineState *machine) { XlnxEP108 *s = g_new0(XlnxEP108, 1); @@ -37,6 +42,21 @@ static void xlnx_ep108_init(MachineState *machine) error_report("%s", error_get_pretty(err)); exit(1); } + + if (machine->ram_size > EP108_MAX_RAM_SIZE) { + error_report("WARNING: RAM size " RAM_ADDR_FMT " above max supported, " + "reduced to %llx", machine->ram_size, EP108_MAX_RAM_SIZE); + machine->ram_size = EP108_MAX_RAM_SIZE; + } + + if (machine->ram_size <= 0x08000000) { + qemu_log("WARNING: RAM size " RAM_ADDR_FMT " is small for EP108", + machine->ram_size); + } + + memory_region_allocate_system_memory(&s->ddr_ram, NULL, "ddr-ram", + machine->ram_size); + memory_region_add_subregion(get_system_memory(), 0, &s->ddr_ram); } static QEMUMachine xlnx_ep108_machine = { |