On Fri, Sep 11, 2020 at 5:46 AM Philippe Mathieu-Daudé <f4...@amsat.org>
wrote:
>
>
> On 9/11/20 7:20 AM, Havard Skinnemoen via wrote:
> > 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 <kft...@nuvoton.com>
> > Reviewed-by: Cédric Le Goater <c...@kaod.org>
> > Tested-by: Cédric Le Goater <c...@kaod.org>
> > Tested-by: Philippe Mathieu-Daudé <f4...@amsat.org>
> > Signed-off-by: Havard Skinnemoen <hskinnem...@google.com>
> > ---
> > hw/arm/npcm7xx_boards.c | 20 ++++++++++++++++++++
> > 1 file changed, 20 insertions(+)
> >
> > diff --git a/hw/arm/npcm7xx_boards.c b/hw/arm/npcm7xx_boards.c
> > index b4c772d6b5..79e2e2744c 100644
> > --- a/hw/arm/npcm7xx_boards.c
> > +++ b/hw/arm/npcm7xx_boards.c
> > @@ -20,6 +20,7 @@
> > #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));
>
> Nitpicking: add definition for '0' magic number
> (consider as future cleanup).
>
Thanks. I've made the change, but won't send it out until this series is
merged, or I'll fold it in if I need to do another iteration for other
reasons.
> 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));
>
> Reviewed-by: Philippe Mathieu-Daudé <f4...@amsat.org>
>
> > npcm7xx_load_kernel(machine, soc);
> > }
> >
> >
>
