@@ -19,6 +19,7 @@
#include "hw/arm/npcm7xx.h"
#include "hw/core/cpu.h"
#include "hw/loader.h"
+#include "hw/qdev-properties.h"
#include "qapi/error.h"
#include "qemu-common.h"
#include "qemu/units.h"
@@ -55,6 +56,22 @@ static void npcm7xx_load_bootrom(MachineState *machine, NPCM7xxState *soc)
}
}
+static void npcm7xx_connect_flash(NPCM7xxFIUState *fiu, int cs_no,
+ const char *flash_type, DriveInfo *dinfo)
+{
+ DeviceState *flash;
+ qemu_irq flash_cs;
+
+ flash = qdev_new(flash_type);
+ if (dinfo) {
+ qdev_prop_set_drive(flash, "drive", blk_by_legacy_dinfo(dinfo));
+ }
+ qdev_realize_and_unref(flash, BUS(fiu->spi), &error_fatal);
+
+ flash_cs = qdev_get_gpio_in_named(flash, SSI_GPIO_CS, 0);
+ qdev_connect_gpio_out_named(DEVICE(fiu), "cs", cs_no, flash_cs);
+}
+
static void npcm7xx_connect_dram(NPCM7xxState *soc, MemoryRegion *dram)
{
memory_region_add_subregion(get_system_memory(), NPCM7XX_DRAM_BA, dram);
@@ -92,6 +109,7 @@ static void npcm750_evb_init(MachineState *machine)
qdev_realize(DEVICE(soc), NULL, &error_fatal);
npcm7xx_load_bootrom(machine, soc);
+ npcm7xx_connect_flash(&soc->fiu[0], 0, "w25q256", drive_get(IF_MTD, 0, 0));
npcm7xx_load_kernel(machine, soc);
}
@@ -104,6 +122,8 @@ static void quanta_gsj_init(MachineState *machine)
qdev_realize(DEVICE(soc), NULL, &error_fatal);
npcm7xx_load_bootrom(machine, soc);
+ npcm7xx_connect_flash(&soc->fiu[0], 0, "mx25l25635e",
+ drive_get(IF_MTD, 0, 0));
npcm7xx_load_kernel(machine, soc);
}
This allows these NPCM7xx-based boards to boot from a flash image, e.g. one built with OpenBMC. For example like this: IMAGE=${OPENBMC}/build/tmp/deploy/images/gsj/image-bmc qemu-system-arm -machine quanta-gsj -nographic \ -drive file=${IMAGE},if=mtd,bus=0,unit=0,format=raw,snapshot=on Reviewed-by: Tyrone Ting <kfting@nuvoton.com> Reviewed-by: Cédric Le Goater <clg@kaod.org> Tested-by: Cédric Le Goater <clg@kaod.org> Signed-off-by: Havard Skinnemoen <hskinnemoen@google.com> --- hw/arm/npcm7xx_boards.c | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+)