Re: [Qemu-devel] [PATCH v3 2/2] ahci: add support for non-PCI based controllers

["Andreas Färber" <afaerber@suse.de>]

Am 05.01.2012 14:52, schrieb Mark Langsdorf:
> From: Rob Herring <rob.herring@calxeda.com>
> 
> Add support for ahci on sysbus.
> 
> Signed-off-by: Rob Herring <rob.herring@calxeda.com>
> Signed-off-by: Mark Langsdorf <mark.langsdorf@calxeda.com>
> ---
> Changes from v1, v2
> 	Corrected indentation of PlatAHCIState members
> 	Made plat_ahci_info into a single structure, not a list
> 
>  hw/ide/ahci.c |   31 +++++++++++++++++++++++++++++++
>  1 files changed, 31 insertions(+), 0 deletions(-)
> 
> diff --git a/hw/ide/ahci.c b/hw/ide/ahci.c
> index 135d0ee..f052e55 100644
> --- a/hw/ide/ahci.c
> +++ b/hw/ide/ahci.c
> @@ -25,6 +25,7 @@
>  #include <hw/msi.h>
>  #include <hw/pc.h>
>  #include <hw/pci.h>
> +#include <hw/sysbus.h>
>  
>  #include "monitor.h"
>  #include "dma.h"
> @@ -1214,3 +1215,33 @@ void ahci_reset(void *opaque)
>          ahci_reset_port(s, i);
>      }
>  }
> +
> +typedef struct PlatAHCIState {
> +    SysBusDevice busdev;
> +    AHCIState ahci;
> +} PlatAHCIState;
> +
> +static int plat_ahci_init(SysBusDevice *dev)
> +{
> +    PlatAHCIState *s = FROM_SYSBUS(PlatAHCIState, dev);
> +    ahci_init(&s->ahci, &dev->qdev, 1);
> +
> +    sysbus_init_mmio(dev, &s->ahci.mem);
> +    sysbus_init_irq(dev, &s->ahci.irq);
> +
> +    qemu_register_reset(ahci_reset, &s->ahci);
> +    return 0;
> +}
> +
> +static SysBusDeviceInfo plat_ahci_info = {
> +    .qdev.name    = "plat-ahci",

The commit message does not given an indication where "plat" comes from
- is that an ARM device name?

> +    .qdev.size    = sizeof(PlatAHCIState),
> +    .init         = plat_ahci_init,
> +};
> +
> +static void plat_ahci_register(void)
> +{
> +    sysbus_register_withprop(&plat_ahci_info);
> +}
> +device_init(plat_ahci_register);
> +

Please move the empty line to above the device_init().

Does this patch actually make something work? If yes, please state so,
including usage instructions. If not, then I would suggest to hold this
one back and to send it together with any follow-on patches that wire it
up on some machine.

Andreas

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