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From: "Philippe Mathieu-Daudé" <f4bug@amsat.org>
To: BALATON Zoltan <balaton@eik.bme.hu>,
	Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Cc: qemu-trivial@nongnu.org, qemu-devel@nongnu.org,
	hpoussin@reactos.org, qemu-ppc@nongnu.org, atar4qemu@gmail.com,
	david@gibson.dropbear.id.au
Subject: Re: [PATCH 4/5] ppc405_boards: use qdev properties instead of legacy m48t59_init() function
Date: Sat, 17 Oct 2020 11:45:43 +0200
Message-ID: <8efee931-3314-7f3a-395b-3b840acdab90@amsat.org> (raw)
In-Reply-To: <653bf315-d1e4-4dc9-dac8-1e859a2ad4d1@eik.bme.hu>

On 10/16/20 10:38 PM, BALATON Zoltan via wrote:
> On Fri, 16 Oct 2020, Mark Cave-Ayland wrote:
>> Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
>> ---
>> hw/ppc/ppc405_boards.c | 10 +++++++++-
>> 1 file changed, 9 insertions(+), 1 deletion(-)
>>
>> diff --git a/hw/ppc/ppc405_boards.c b/hw/ppc/ppc405_boards.c
>> index 6198ec1035..4687715b15 100644
>> --- a/hw/ppc/ppc405_boards.c
>> +++ b/hw/ppc/ppc405_boards.c
>> @@ -28,6 +28,8 @@
>> #include "qemu-common.h"
>> #include "cpu.h"
>> #include "hw/ppc/ppc.h"
>> +#include "hw/qdev-properties.h"
>> +#include "hw/sysbus.h"
>> #include "ppc405.h"
>> #include "hw/rtc/m48t59.h"
>> #include "hw/block/flash.h"
>> @@ -145,6 +147,8 @@ static void ref405ep_init(MachineState *machine)
>>     char *filename;
>>     ppc4xx_bd_info_t bd;
>>     CPUPPCState *env;
>> +    DeviceState *dev;
>> +    SysBusDevice *s;
>>     qemu_irq *pic;
>>     MemoryRegion *bios;
>>     MemoryRegion *sram = g_new(MemoryRegion, 1);
>> @@ -227,7 +231,11 @@ static void ref405ep_init(MachineState *machine)
>>     /* Register FPGA */
>>     ref405ep_fpga_init(sysmem, 0xF0300000);
>>     /* Register NVRAM */
>> -    m48t59_init(NULL, 0xF0000000, 0, 8192, 1968, 8);
>> +    dev = qdev_new("sysbus-m48t08");
>> +    qdev_prop_set_int32(dev, "base-year", 1968);
> 
> Is there anything that uses other than 1968 as base year? If not this 
> could be the default in the device so you don't need these set prop 
> calls here and in sun machines.
> 
> The only other place this device is used seems to be ppc/prep machine 
> that uses the isa version but does not set a base year. Is that a bug? 
> The original prep machine removed in b2ce76a0730 used 2000 but that's 
> unlikely as well as these machines predate that.

=)

> Anyway, the sysbus and 
> isa versions are different

They shouldn't, it is the same chipset, wired differently.

> so their default base-year could be set 
> independently and then boards won't need to set this propery and may be 
> could use qdev_create_simple instead or whatever that was renamed to.

Agreed.

Preferably following Zoltan's suggestion:
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>

> 
> Regards,
> BALATON Zoltan
> 
>> +    s = SYS_BUS_DEVICE(dev);
>> +    sysbus_realize_and_unref(s, &error_fatal);
>> +    sysbus_mmio_map(s, 0, 0xF0000000);
>>     /* Load kernel */
>>     linux_boot = (kernel_filename != NULL);
>>     if (linux_boot) {
>>
> 


  reply index

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-10-16 18:27 [PATCH 0/5] m48t59: remove legacy init functions Mark Cave-Ayland
2020-10-16 18:27 ` [PATCH 1/5] m48t59-isa: remove legacy m48t59_init_isa() function Mark Cave-Ayland
2020-10-17  9:39   ` Philippe Mathieu-Daudé
2020-10-16 18:27 ` [PATCH 2/5] sun4m: use qdev properties instead of legacy m48t59_init() function Mark Cave-Ayland
2020-10-17  9:42   ` Philippe Mathieu-Daudé
2020-10-17 11:07     ` Mark Cave-Ayland
2020-10-16 18:27 ` [PATCH 3/5] sun4u: " Mark Cave-Ayland
2020-10-17  9:43   ` Philippe Mathieu-Daudé
2020-10-16 18:27 ` [PATCH 4/5] ppc405_boards: " Mark Cave-Ayland
2020-10-16 20:38   ` BALATON Zoltan via
2020-10-17  9:45     ` Philippe Mathieu-Daudé [this message]
2020-10-17 10:44       ` BALATON Zoltan via
2020-10-17 11:53         ` Mark Cave-Ayland
2020-10-17 11:16       ` Mark Cave-Ayland
2020-10-17 14:41     ` Artyom Tarasenko
2020-10-16 18:27 ` [PATCH 5/5] m48t59: remove " Mark Cave-Ayland
2020-10-17  9:53   ` Philippe Mathieu-Daudé
2020-10-17 11:19     ` Mark Cave-Ayland
2020-10-17 13:57       ` Philippe Mathieu-Daudé
2020-10-16 20:21 ` [PATCH 0/5] m48t59: remove legacy init functions Hervé Poussineau

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