Hi Corey,

On Thu, Feb 6, 2020 at 10:09 PM Niek Linnenbank <nieklinnenb...@gmail.com>
wrote:

> Hi Corey,
>
> On Mon, Feb 3, 2020 at 2:10 PM Corey Minyard <cminy...@mvista.com> wrote:
>
>> On Sun, Feb 02, 2020 at 10:27:49PM +0100, Niek Linnenbank wrote:
>> > Hi Corey,
>> >
>> > Thanks for reviewing!
>> >
>> > On Mon, Jan 20, 2020 at 6:59 PM Corey Minyard <cminy...@mvista.com>
>> wrote:
>> >
>> > > On Sat, Jan 18, 2020 at 04:25:08PM +0100, Philippe Mathieu-Daudé
>> wrote:
>> > > > Cc'ing Corey/David for good advices about using UUID.
>> > >
>> > > Is there any reason you didn't use the built-in qemu UUID for this?
>> It
>> > > would simplify things in general.
>> > >
>> >
>> > Currently the Allwinner SID device is using the QemuUUID type from
>> > include/qemu/uuid.h.
>> > Is that the build-in UUID you are referring to or should I use something
>> > else?
>>
>> You are using the QemuUUID type, which is of course what you should do,
>> but you aren't using the UUID generated by qemu (at least that I can
>> find).
>> That in include/sysemu/sysemu.h and is named qemu_uuid.  Whether you
>> should use that or not depends on your needs.  If you just need some
>> uuid, then that's what you should probably use.  If you need something
>> the user can individually control for this device, for instance, then
>> that probably won't do.
>>
>
> Ah I did not know about the qemu_uuid variable, thanks for pointing that
> out.
> Basically the SID identifier is a number that is unique for each board
> that comes
> out of the factory. It is currently used by U-Boot to as input to generate
> a MAC address.
>
> If I understand correctly, qemu_uuid is optional and by default zero.
> However the SID value should not be zero, as otherwise U-Boot can't pick a
> MAC address
> resulting in a non-working ethernet device.
>
> Currently the hw/arm/orangepi.c machine specifies a fixed SID to be used
> for the emulated board,
> also containing a prefix (8100c002) that indicates the H3 chipset. One
> thing that I am strugling with is that
> I'm not able to override the property using '-global', if
> hw/arm/orangepi.c initializes the property with qdev_prop_set_string:
>
> $ qemu-system-arm -M orangepi-pc -kernel u-boot -nographic -nic user \
> -global allwinner-sid.identifier=8100c002-0001-0002-0003-000044556688
>
> If I don't set the property in hw/arm/orangepi.c, I can set it with
> '-global'. Do you perhaps have a
> recommendation how to improve that? Basically what is needed is that the
> machine sets the default
> property including the chip prefix, and that the user can override it.
> Although it is not required for a
> working emulated board, it would be a nice-to-have that the user can set
> it.
>

FYI and possibly others who have a similar usecase, I figured out how to do
this. In the machine init function,
after creating the new SoC object, simply check if the identifier has a
value:

+    if (qemu_uuid_is_null(&s->h3->sid.identifier)) {
+        qdev_prop_set_string(DEVICE(s->h3), "identifier",
+                             "8100c002-0001-0002-0003-000044556677");
+    }

That way, if the user passed -global to override it, the machine will not
overrule the user's value
and by default the machine sets an identifier containing the H3 specific
chip prefix.

Regards,
Niek


>
>> >
>> >
>> > > Also, in case no one else say, you have tabs in your code that you
>> need
>> > > to get rid of.
>> > >
>> > >
>> > If there are any tabs in the code, it was not intended. I re-checked
>> this
>> > patch and others
>> > again but found no tabs in the code.
>> > Could you please point out where you found the extra tabs?
>>
>> My apologies, I saw 1-character misalignments, and that usually means
>> that there's a tab.  But it looks like it has something to do with the
>> way it was forwarded.  I didn't get the original email.
>>
>> Ah yes that is possible indeed. I'll add you to the CC list for the next
> version of this patch series.
>
> Regards,
> Niek
>
>
>> -corey
>>
>> >
>> > Regards,
>> > Niek
>> >
>> >
>> > > -corey
>> > >
>> > > >
>> > > > On 1/8/20 9:00 PM, Niek Linnenbank wrote:
>> > > > > The Security Identifier device found in various Allwinner System
>> on
>> > > Chip
>> > > > > designs gives applications a per-board unique identifier. This
>> commit
>> > > > > adds support for the Allwinner Security Identifier using a 128-bit
>> > > > > UUID value as input.
>> > > > >
>> > > > > Signed-off-by: Niek Linnenbank <nieklinnenb...@gmail.com>
>> > > > > ---
>> > > > >   include/hw/arm/allwinner-h3.h   |   3 +
>> > > > >   include/hw/misc/allwinner-sid.h |  61 ++++++++++++
>> > > > >   hw/arm/allwinner-h3.c           |  11 ++-
>> > > > >   hw/arm/orangepi.c               |   4 +
>> > > > >   hw/misc/allwinner-sid.c         | 170
>> > > ++++++++++++++++++++++++++++++++
>> > > > >   hw/misc/Makefile.objs           |   1 +
>> > > > >   hw/misc/trace-events            |   4 +
>> > > > >   7 files changed, 253 insertions(+), 1 deletion(-)
>> > > > >   create mode 100644 include/hw/misc/allwinner-sid.h
>> > > > >   create mode 100644 hw/misc/allwinner-sid.c
>> > > > >
>> > > > > diff --git a/include/hw/arm/allwinner-h3.h
>> > > b/include/hw/arm/allwinner-h3.h
>> > > > > index 5a25a92eae..9ed365507c 100644
>> > > > > --- a/include/hw/arm/allwinner-h3.h
>> > > > > +++ b/include/hw/arm/allwinner-h3.h
>> > > > > @@ -46,6 +46,7 @@
>> > > > >   #include "hw/misc/allwinner-h3-ccu.h"
>> > > > >   #include "hw/misc/allwinner-cpucfg.h"
>> > > > >   #include "hw/misc/allwinner-h3-sysctrl.h"
>> > > > > +#include "hw/misc/allwinner-sid.h"
>> > > > >   #include "target/arm/cpu.h"
>> > > > >   /**
>> > > > > @@ -63,6 +64,7 @@ enum {
>> > > > >       AW_H3_SRAM_A2,
>> > > > >       AW_H3_SRAM_C,
>> > > > >       AW_H3_SYSCTRL,
>> > > > > +    AW_H3_SID,
>> > > > >       AW_H3_EHCI0,
>> > > > >       AW_H3_OHCI0,
>> > > > >       AW_H3_EHCI1,
>> > > > > @@ -115,6 +117,7 @@ typedef struct AwH3State {
>> > > > >       AwH3ClockCtlState ccu;
>> > > > >       AwCpuCfgState cpucfg;
>> > > > >       AwH3SysCtrlState sysctrl;
>> > > > > +    AwSidState sid;
>> > > > >       GICState gic;
>> > > > >       MemoryRegion sram_a1;
>> > > > >       MemoryRegion sram_a2;
>> > > > > diff --git a/include/hw/misc/allwinner-sid.h
>> > > b/include/hw/misc/allwinner-sid.h
>> > > > > new file mode 100644
>> > > > > index 0000000000..41189967e2
>> > > > > --- /dev/null
>> > > > > +++ b/include/hw/misc/allwinner-sid.h
>> > > > > @@ -0,0 +1,61 @@
>> > > > > +/*
>> > > > > + * Allwinner Security ID emulation
>> > > > > + *
>> > > > > + * Copyright (C) 2019 Niek Linnenbank <nieklinnenb...@gmail.com>
>> > > > > + *
>> > > > > + * This program is free software: you can redistribute it and/or
>> > > modify
>> > > > > + * it under the terms of the GNU General Public License as
>> published
>> > > by
>> > > > > + * the Free Software Foundation, either version 2 of the
>> License, or
>> > > > > + * (at your option) any later version.
>> > > > > + *
>> > > > > + * This program is distributed in the hope that it will be
>> useful,
>> > > > > + * but WITHOUT ANY WARRANTY; without even the implied warranty of
>> > > > > + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
>> > > > > + * GNU General Public License for more details.
>> > > > > + *
>> > > > > + * You should have received a copy of the GNU General Public
>> License
>> > > > > + * along with this program.  If not, see <
>> > > http://www.gnu.org/licenses/>.
>> > > > > + */
>> > > > > +
>> > > > > +#ifndef HW_MISC_ALLWINNER_SID_H
>> > > > > +#define HW_MISC_ALLWINNER_SID_H
>> > > > > +
>> > > > > +#include "qemu/osdep.h"
>> > > > > +#include "qom/object.h"
>> > > > > +#include "hw/sysbus.h"
>> > > > > +#include "qemu/uuid.h"
>> > > > > +
>> > > > > +/**
>> > > > > + * Object model
>> > > > > + * @{
>> > > > > + */
>> > > > > +
>> > > > > +#define TYPE_AW_SID    "allwinner-sid"
>> > > > > +#define AW_SID(obj) \
>> > > > > +    OBJECT_CHECK(AwSidState, (obj), TYPE_AW_SID)
>> > > > > +
>> > > > > +/** @} */
>> > > > > +
>> > > > > +/**
>> > > > > + * Allwinner Security ID object instance state
>> > > > > + */
>> > > > > +typedef struct AwSidState {
>> > > > > +    /*< private >*/
>> > > > > +    SysBusDevice parent_obj;
>> > > > > +    /*< public >*/
>> > > > > +
>> > > > > +    /** Maps I/O registers in physical memory */
>> > > > > +    MemoryRegion iomem;
>> > > > > +
>> > > > > +    /** Control register defines how and what to read */
>> > > > > +    uint32_t control;
>> > > > > +
>> > > > > +    /** RdKey register contains the data retrieved by the device
>> */
>> > > > > +    uint32_t rdkey;
>> > > > > +
>> > > > > +    /** Stores the emulated device identifier */
>> > > > > +    QemuUUID identifier;
>> > > > > +
>> > > > > +} AwSidState;
>> > > > > +
>> > > > > +#endif /* HW_MISC_ALLWINNER_SID_H */
>> > > > > diff --git a/hw/arm/allwinner-h3.c b/hw/arm/allwinner-h3.c
>> > > > > index e9ad6d23df..af7317e86a 100644
>> > > > > --- a/hw/arm/allwinner-h3.c
>> > > > > +++ b/hw/arm/allwinner-h3.c
>> > > > > @@ -36,6 +36,7 @@ const hwaddr allwinner_h3_memmap[] = {
>> > > > >       [AW_H3_SRAM_A2]    = 0x00044000,
>> > > > >       [AW_H3_SRAM_C]     = 0x00010000,
>> > > > >       [AW_H3_SYSCTRL]    = 0x01c00000,
>> > > > > +    [AW_H3_SID]        = 0x01c14000,
>> > > > >       [AW_H3_EHCI0]      = 0x01c1a000,
>> > > > >       [AW_H3_OHCI0]      = 0x01c1a400,
>> > > > >       [AW_H3_EHCI1]      = 0x01c1b000,
>> > > > > @@ -76,7 +77,6 @@ struct AwH3Unimplemented {
>> > > > >       { "mmc0",      0x01c0f000, 4 * KiB },
>> > > > >       { "mmc1",      0x01c10000, 4 * KiB },
>> > > > >       { "mmc2",      0x01c11000, 4 * KiB },
>> > > > > -    { "sid",       0x01c14000, 1 * KiB },
>> > > > >       { "crypto",    0x01c15000, 4 * KiB },
>> > > > >       { "msgbox",    0x01c17000, 4 * KiB },
>> > > > >       { "spinlock",  0x01c18000, 4 * KiB },
>> > > > > @@ -196,6 +196,11 @@ static void allwinner_h3_init(Object *obj)
>> > > > >       sysbus_init_child_obj(obj, "cpucfg", &s->cpucfg,
>> > > sizeof(s->cpucfg),
>> > > > >                             TYPE_AW_CPUCFG);
>> > > > > +
>> > > > > +    sysbus_init_child_obj(obj, "sid", &s->sid, sizeof(s->sid),
>> > > > > +                          TYPE_AW_SID);
>> > > > > +    object_property_add_alias(obj, "identifier", OBJECT(&s->sid),
>> > > > > +                              "identifier", &error_abort);
>> > > > >   }
>> > > > >   static void allwinner_h3_realize(DeviceState *dev, Error **errp)
>> > > > > @@ -316,6 +321,10 @@ static void allwinner_h3_realize(DeviceState
>> > > *dev, Error **errp)
>> > > > >       qdev_init_nofail(DEVICE(&s->cpucfg));
>> > > > >       sysbus_mmio_map(SYS_BUS_DEVICE(&s->cpucfg), 0,
>> > > s->memmap[AW_H3_CPUCFG]);
>> > > > > +    /* Security Identifier */
>> > > > > +    qdev_init_nofail(DEVICE(&s->sid));
>> > > > > +    sysbus_mmio_map(SYS_BUS_DEVICE(&s->sid), 0,
>> s->memmap[AW_H3_SID]);
>> > > > > +
>> > > > >       /* Universal Serial Bus */
>> > > > >       sysbus_create_simple(TYPE_AW_H3_EHCI,
>> s->memmap[AW_H3_EHCI0],
>> > > > >                            qdev_get_gpio_in(DEVICE(&s->gic),
>> > > > > diff --git a/hw/arm/orangepi.c b/hw/arm/orangepi.c
>> > > > > index 051184f14f..a7f870c88b 100644
>> > > > > --- a/hw/arm/orangepi.c
>> > > > > +++ b/hw/arm/orangepi.c
>> > > > > @@ -54,6 +54,10 @@ static void orangepi_init(MachineState
>> *machine)
>> > > > >       object_property_set_int(OBJECT(s->h3), 24000000,
>> "clk1-freq",
>> > > > >                               &error_abort);
>> > > > > +    /* Setup SID properties */
>> > > > > +    qdev_prop_set_string(DEVICE(s->h3), "identifier",
>> > > > > +                         "8100c002-0001-0002-0003-000044556677");
>> > > > > +
>> > > > >       /* Mark H3 object realized */
>> > > > >       object_property_set_bool(OBJECT(s->h3), true, "realized",
>> > > &error_abort);
>> > > > > diff --git a/hw/misc/allwinner-sid.c b/hw/misc/allwinner-sid.c
>> > > > > new file mode 100644
>> > > > > index 0000000000..954de935bc
>> > > > > --- /dev/null
>> > > > > +++ b/hw/misc/allwinner-sid.c
>> > > > > @@ -0,0 +1,170 @@
>> > > > > +/*
>> > > > > + * Allwinner Security ID emulation
>> > > > > + *
>> > > > > + * Copyright (C) 2019 Niek Linnenbank <nieklinnenb...@gmail.com>
>> > > > > + *
>> > > > > + * This program is free software: you can redistribute it and/or
>> > > modify
>> > > > > + * it under the terms of the GNU General Public License as
>> published
>> > > by
>> > > > > + * the Free Software Foundation, either version 2 of the
>> License, or
>> > > > > + * (at your option) any later version.
>> > > > > + *
>> > > > > + * This program is distributed in the hope that it will be
>> useful,
>> > > > > + * but WITHOUT ANY WARRANTY; without even the implied warranty of
>> > > > > + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
>> > > > > + * GNU General Public License for more details.
>> > > > > + *
>> > > > > + * You should have received a copy of the GNU General Public
>> License
>> > > > > + * along with this program.  If not, see <
>> > > http://www.gnu.org/licenses/>.
>> > > > > + */
>> > > > > +
>> > > > > +#include "qemu/osdep.h"
>> > > > > +#include "qemu/units.h"
>> > > > > +#include "hw/sysbus.h"
>> > > > > +#include "migration/vmstate.h"
>> > > > > +#include "qemu/log.h"
>> > > > > +#include "qemu/module.h"
>> > > > > +#include "qemu/guest-random.h"
>> > > > > +#include "qapi/error.h"
>> > > > > +#include "hw/qdev-properties.h"
>> > > > > +#include "hw/misc/allwinner-sid.h"
>> > > > > +#include "trace.h"
>> > > > > +
>> > > > > +/* SID register offsets */
>> > > > > +enum {
>> > > > > +    REG_PRCTL = 0x40,   /* Control */
>> > > > > +    REG_RDKEY = 0x60,   /* Read Key */
>> > > > > +};
>> > > > > +
>> > > > > +/* SID register flags */
>> > > > > +enum {
>> > > > > +    REG_PRCTL_WRITE   = 0x0002, /* Unknown write flag */
>> > > > > +    REG_PRCTL_OP_LOCK = 0xAC00, /* Lock operation */
>> > > > > +};
>> > > > > +
>> > > > > +static uint64_t allwinner_sid_read(void *opaque, hwaddr offset,
>> > > > > +                                   unsigned size)
>> > > > > +{
>> > > > > +    const AwSidState *s = AW_SID(opaque);
>> > > > > +    uint64_t val = 0;
>> > > > > +
>> > > > > +    switch (offset) {
>> > > > > +    case REG_PRCTL:    /* Control */
>> > > > > +        val = s->control;
>> > > > > +        break;
>> > > > > +    case REG_RDKEY:    /* Read Key */
>> > > > > +        val = s->rdkey;
>> > > > > +        break;
>> > > > > +    default:
>> > > > > +        qemu_log_mask(LOG_GUEST_ERROR, "%s: out-of-bounds offset
>> > > 0x%04x\n",
>> > > > > +                      __func__, (uint32_t)offset);
>> > > > > +        return 0;
>> > > > > +    }
>> > > > > +
>> > > > > +    trace_allwinner_sid_read(offset, val, size);
>> > > > > +
>> > > > > +    return val;
>> > > > > +}
>> > > > > +
>> > > > > +static void allwinner_sid_write(void *opaque, hwaddr offset,
>> > > > > +                                uint64_t val, unsigned size)
>> > > > > +{
>> > > > > +    AwSidState *s = AW_SID(opaque);
>> > > > > +
>> > > > > +    trace_allwinner_sid_write(offset, val, size);
>> > > > > +
>> > > > > +    switch (offset) {
>> > > > > +    case REG_PRCTL:    /* Control */
>> > > > > +        s->control = val;
>> > > > > +
>> > > > > +        if ((s->control & REG_PRCTL_OP_LOCK) &&
>> > > > > +            (s->control & REG_PRCTL_WRITE)) {
>> > > > > +            uint32_t id = s->control >> 16;
>> > > > > +
>> > > > > +            if (id < sizeof(QemuUUID)) {
>> > > > > +                s->rdkey = (s->identifier.data[id]) |
>> > > > > +                           (s->identifier.data[id + 1] << 8) |
>> > > > > +                           (s->identifier.data[id + 2] << 16) |
>> > > > > +                           (s->identifier.data[id + 3] << 24);
>> > > > > +            }
>> > > > > +        }
>> > > > > +        s->control &= ~REG_PRCTL_WRITE;
>> > > > > +        break;
>> > > > > +    case REG_RDKEY:    /* Read Key */
>> > > > > +        break;
>> > > > > +    default:
>> > > > > +        qemu_log_mask(LOG_GUEST_ERROR, "%s: out-of-bounds offset
>> > > 0x%04x\n",
>> > > > > +                      __func__, (uint32_t)offset);
>> > > > > +        break;
>> > > > > +    }
>> > > > > +}
>> > > > > +
>> > > > > +static const MemoryRegionOps allwinner_sid_ops = {
>> > > > > +    .read = allwinner_sid_read,
>> > > > > +    .write = allwinner_sid_write,
>> > > > > +    .endianness = DEVICE_NATIVE_ENDIAN,
>> > > > > +    .valid = {
>> > > > > +        .min_access_size = 4,
>> > > > > +        .max_access_size = 4,
>> > > > > +    },
>> > > > > +    .impl.min_access_size = 4,
>> > > > > +};
>> > > > > +
>> > > > > +static void allwinner_sid_reset(DeviceState *dev)
>> > > > > +{
>> > > > > +    AwSidState *s = AW_SID(dev);
>> > > > > +
>> > > > > +    /* Set default values for registers */
>> > > > > +    s->control = 0;
>> > > > > +    s->rdkey = 0;
>> > > > > +}
>> > > > > +
>> > > > > +static void allwinner_sid_init(Object *obj)
>> > > > > +{
>> > > > > +    SysBusDevice *sbd = SYS_BUS_DEVICE(obj);
>> > > > > +    AwSidState *s = AW_SID(obj);
>> > > > > +
>> > > > > +    /* Memory mapping */
>> > > > > +    memory_region_init_io(&s->iomem, OBJECT(s),
>> &allwinner_sid_ops, s,
>> > > > > +                           TYPE_AW_SID, 1 * KiB);
>> > > > > +    sysbus_init_mmio(sbd, &s->iomem);
>> > > > > +}
>> > > > > +
>> > > > > +static Property allwinner_sid_properties[] = {
>> > > > > +    DEFINE_PROP_UUID_NODEFAULT("identifier", AwSidState,
>> identifier),
>> > > > > +    DEFINE_PROP_END_OF_LIST()
>> > > > > +};
>> > > > > +
>> > > > > +static const VMStateDescription allwinner_sid_vmstate = {
>> > > > > +    .name = "allwinner-sid",
>> > > > > +    .version_id = 1,
>> > > > > +    .minimum_version_id = 1,
>> > > > > +    .fields = (VMStateField[]) {
>> > > > > +        VMSTATE_UINT32(control, AwSidState),
>> > > > > +        VMSTATE_UINT32(rdkey, AwSidState),
>> > > > > +        VMSTATE_END_OF_LIST()
>> > > > > +    }
>> > > > > +};
>> > > > > +
>> > > > > +static void allwinner_sid_class_init(ObjectClass *klass, void
>> *data)
>> > > > > +{
>> > > > > +    DeviceClass *dc = DEVICE_CLASS(klass);
>> > > > > +
>> > > > > +    dc->reset = allwinner_sid_reset;
>> > > > > +    dc->vmsd = &allwinner_sid_vmstate;
>> > > > > +    dc->props = allwinner_sid_properties;
>> > > > > +}
>> > > > > +
>> > > > > +static const TypeInfo allwinner_sid_info = {
>> > > > > +    .name          = TYPE_AW_SID,
>> > > > > +    .parent        = TYPE_SYS_BUS_DEVICE,
>> > > > > +    .instance_init = allwinner_sid_init,
>> > > > > +    .instance_size = sizeof(AwSidState),
>> > > > > +    .class_init    = allwinner_sid_class_init,
>> > > > > +};
>> > > > > +
>> > > > > +static void allwinner_sid_register(void)
>> > > > > +{
>> > > > > +    type_register_static(&allwinner_sid_info);
>> > > > > +}
>> > > > > +
>> > > > > +type_init(allwinner_sid_register)
>> > > > > diff --git a/hw/misc/Makefile.objs b/hw/misc/Makefile.objs
>> > > > > index 12c2c306b5..59500d5681 100644
>> > > > > --- a/hw/misc/Makefile.objs
>> > > > > +++ b/hw/misc/Makefile.objs
>> > > > > @@ -31,6 +31,7 @@ common-obj-$(CONFIG_IVSHMEM_DEVICE) += ivshmem.o
>> > > > >   common-obj-$(CONFIG_ALLWINNER_H3) += allwinner-h3-ccu.o
>> > > > >   obj-$(CONFIG_ALLWINNER_H3) += allwinner-cpucfg.o
>> > > > >   common-obj-$(CONFIG_ALLWINNER_H3) += allwinner-h3-sysctrl.o
>> > > > > +common-obj-$(CONFIG_ALLWINNER_H3) += allwinner-sid.o
>> > > > >   common-obj-$(CONFIG_REALVIEW) += arm_sysctl.o
>> > > > >   common-obj-$(CONFIG_NSERIES) += cbus.o
>> > > > >   common-obj-$(CONFIG_ECCMEMCTL) += eccmemctl.o
>> > > > > diff --git a/hw/misc/trace-events b/hw/misc/trace-events
>> > > > > index d3e0952429..67d8bf493c 100644
>> > > > > --- a/hw/misc/trace-events
>> > > > > +++ b/hw/misc/trace-events
>> > > > > @@ -5,6 +5,10 @@ allwinner_cpucfg_cpu_reset(uint8_t cpu_id,
>> uint32_t
>> > > reset_addr) "id %u, reset_ad
>> > > > >   allwinner_cpucfg_read(uint64_t offset, uint64_t data, unsigned
>> size)
>> > > "offset 0x%" PRIx64 " data 0x%" PRIx64 " size %" PRIu32
>> > > > >   allwinner_cpucfg_write(uint64_t offset, uint64_t data, unsigned
>> > > size) "offset 0x%" PRIx64 " data 0x%" PRIx64 " size %" PRIu32
>> > > > > +# allwinner-sid.c
>> > > > > +allwinner_sid_read(uint64_t offset, uint64_t data, unsigned size)
>> > > "offset 0x%" PRIx64 " data 0x%" PRIx64 " size %" PRIu32
>> > > > > +allwinner_sid_write(uint64_t offset, uint64_t data, unsigned
>> size)
>> > > "offset 0x%" PRIx64 " data 0x%" PRIx64 " size %" PRIu32
>> > > > > +
>> > > > >   # eccmemctl.c
>> > > > >   ecc_mem_writel_mer(uint32_t val) "Write memory enable 0x%08x"
>> > > > >   ecc_mem_writel_mdr(uint32_t val) "Write memory delay 0x%08x"
>> > > > >
>> > > >
>> > >
>> >
>> >
>> > --
>> > Niek Linnenbank
>>
>
>
> --
> Niek Linnenbank
>
>

-- 
Niek Linnenbank

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