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Re: [Qemu-devel] [PATCH 2/2] hw/arm/allwinner-a10: initialize EMAC


From: Peter Crosthwaite
Subject: Re: [Qemu-devel] [PATCH 2/2] hw/arm/allwinner-a10: initialize EMAC
Date: Thu, 2 Jan 2014 20:21:25 +1000

On Thu, Jan 2, 2014 at 8:20 PM, Peter Crosthwaite
<address@hidden> wrote:
> On Thu, Jan 2, 2014 at 7:18 PM, Beniamino Galvani <address@hidden> wrote:
>> Signed-off-by: Beniamino Galvani <address@hidden>
>> ---
>>  hw/arm/allwinner-a10.c         |   20 ++++++++++++++++++++
>>  include/hw/arm/allwinner-a10.h |    4 ++++
>>  2 files changed, 24 insertions(+)
>>
>> diff --git a/hw/arm/allwinner-a10.c b/hw/arm/allwinner-a10.c
>> index 4658e19..155e026 100644
>> --- a/hw/arm/allwinner-a10.c
>> +++ b/hw/arm/allwinner-a10.c
>> @@ -22,6 +22,7 @@
>>  static void aw_a10_init(Object *obj)
>>  {
>>      AwA10State *s = AW_A10(obj);
>> +    DeviceState *dev;
>
> For consistency with surrounding code, you could just cast to DEVICE
> include and drop the new local var.
>

inline* not include

Sorry,
Peter

>>
>>      object_initialize(&s->cpu, sizeof(s->cpu), "cortex-a8-" TYPE_ARM_CPU);
>>      object_property_add_child(obj, "cpu", OBJECT(&s->cpu), NULL);
>> @@ -31,6 +32,14 @@ static void aw_a10_init(Object *obj)
>>
>>      object_initialize(&s->timer, sizeof(s->timer), TYPE_AW_A10_PIT);
>>      qdev_set_parent_bus(DEVICE(&s->timer), sysbus_get_default());
>> +
>> +    if (nd_table[0].used) {
>
> So with SoC MACs, they are "always there". I think this conditional
> should be removed, and the MAC is always instantiated. ...
>
>> +        qemu_check_nic_model(&nd_table[0], "allwinner_emac");
>> +        object_initialize(&s->emac, sizeof(s->emac), TYPE_AW_EMAC);
>> +        dev = DEVICE(&s->emac);
>> +        qdev_set_nic_properties(dev, &nd_table[0]);
>
> ... and then only this is conditional on nd_table.used. The mac model
> itself then of course needs to be hardened against a null netargs.
>
>> +        qdev_set_parent_bus(dev, sysbus_get_default());
>> +    }
>>  }
>>
>>  static void aw_a10_realize(DeviceState *dev, Error **errp)
>> @@ -76,6 +85,17 @@ static void aw_a10_realize(DeviceState *dev, Error **errp)
>>      sysbus_connect_irq(sysbusdev, 4, s->irq[67]);
>>      sysbus_connect_irq(sysbusdev, 5, s->irq[68]);
>>
>> +    if (nd_table[0].used) {
>> +        object_property_set_bool(OBJECT(&s->emac), true, "realized", &err);
>> +        if (err != NULL) {
>> +            error_propagate(errp, err);
>> +            return;
>> +        }
>> +        sysbusdev = SYS_BUS_DEVICE(&s->emac);
>> +        sysbus_mmio_map(sysbusdev, 0, AW_A10_EMAC_BASE);
>> +        sysbus_connect_irq(sysbusdev, 0, s->irq[55]);
>> +    }
>> +
>>      serial_mm_init(get_system_memory(), AW_A10_UART0_REG_BASE, 2, s->irq[1],
>>                     115200, serial_hds[0], DEVICE_NATIVE_ENDIAN);
>>  }
>> diff --git a/include/hw/arm/allwinner-a10.h b/include/hw/arm/allwinner-a10.h
>> index da36647..6ea5988 100644
>> --- a/include/hw/arm/allwinner-a10.h
>> +++ b/include/hw/arm/allwinner-a10.h
>> @@ -6,6 +6,7 @@
>>  #include "hw/arm/arm.h"
>>  #include "hw/timer/allwinner-a10-pit.h"
>>  #include "hw/intc/allwinner-a10-pic.h"
>> +#include "hw/net/allwinner_emac.h"
>>
>>  #include "sysemu/sysemu.h"
>>  #include "exec/address-spaces.h"
>> @@ -14,9 +15,11 @@
>>  #define AW_A10_PIC_REG_BASE     0x01c20400
>>  #define AW_A10_PIT_REG_BASE     0x01c20c00
>>  #define AW_A10_UART0_REG_BASE   0x01c28000
>> +#define AW_A10_EMAC_BASE        0x01c0b000
>>
>>  #define AW_A10_SDRAM_BASE       0x40000000
>>
>> +
>
> This whitespace change intended?
>
> Regards,
> Peter
>
>>  #define TYPE_AW_A10 "allwinner-a10"
>>  #define AW_A10(obj) OBJECT_CHECK(AwA10State, (obj), TYPE_AW_A10)
>>
>> @@ -29,6 +32,7 @@ typedef struct AwA10State {
>>      qemu_irq irq[AW_A10_PIC_INT_NR];
>>      AwA10PITState timer;
>>      AwA10PICState intc;
>> +    AwEmacState emac;
>>  } AwA10State;
>>
>>  #define ALLWINNER_H_
>> --
>> 1.7.10.4
>>
>>



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