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Re: [PATCH v2 12/13] hw/arm/raspi: Add the Raspberry Pi B+ machine


From: Luc Michel
Subject: Re: [PATCH v2 12/13] hw/arm/raspi: Add the Raspberry Pi B+ machine
Date: Tue, 18 Feb 2020 09:48:55 +0100
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.5.0

On 2/17/20 12:45 PM, Philippe Mathieu-Daudé wrote:
>   $ qemu-system-arm -M raspi1b -serial stdio \
>       -kernel raspberrypi/firmware/boot/kernel.img \
>       -dtb raspberrypi/firmware/boot/bcm2708-rpi-b.dtb \
>       -append 'printk.time=0 earlycon=pl011,0x20201000 console=ttyAMA0'
>   [    0.000000] Booting Linux on physical CPU 0x0
>   [    0.000000] Linux version 4.19.69+ (dom@buildbot) (gcc version 4.9.3 
> (crosstool-NG crosstool-ng-1.22.0-88-g8460611)) #1261 Tue Sep 3 20:21:01 BST 
> 2019
>   [    0.000000] CPU: ARMv6-compatible processor [410fb767] revision 7 
> (ARMv7), cr=00c5387d
>   [    0.000000] CPU: VIPT aliasing data cache, unknown instruction cache
>   [    0.000000] OF: fdt: Machine model: Raspberry Pi Model B
>   [    0.000000] earlycon: pl11 at MMIO 0x20201000 (options '')
>   [    0.000000] bootconsole [pl11] enabled
>   [    0.000000] Memory policy: Data cache writeback
>   [    0.000000] cma: Reserved 8 MiB at 0x1b800000
>   [    0.000000] random: get_random_bytes called from start_kernel+0x8c/0x49c 
> with crng_init=0
>   [    0.000000] Built 1 zonelists, mobility grouping on.  Total pages: 113680
>   [    0.000000] Kernel command line: printk.time=0 earlycon=pl011,0x20201000 
> console=ttyAMA0
>   Dentry cache hash table entries: 65536 (order: 6, 262144 bytes)
>   Inode-cache hash table entries: 32768 (order: 5, 131072 bytes)
>   Memory: 434380K/458752K available (6971K kernel code, 635K rwdata, 2080K 
> rodata, 464K init, 797K bss, 16180K reserved, 8192K cma-reserved)
>   ...
> 
> Signed-off-by: Philippe Mathieu-Daudé <address@hidden>
> ---
>  hw/arm/raspi.c | 13 +++++++++++++
>  1 file changed, 13 insertions(+)
> 
> diff --git a/hw/arm/raspi.c b/hw/arm/raspi.c
> index 3537a329ac..2d9f4e3085 100644
> --- a/hw/arm/raspi.c
> +++ b/hw/arm/raspi.c
> @@ -324,6 +324,15 @@ static void raspi_machine_class_common_init(MachineClass 
> *mc,
>      mc->default_ram_size = board_ram_size(board_rev);
>  };
>  
> +static void raspi1b_machine_class_init(ObjectClass *oc, void *data)
> +{
> +    MachineClass *mc = MACHINE_CLASS(oc);
> +    RaspiMachineClass *rmc = RASPI_MACHINE_CLASS(oc);
> +
> +    rmc->board_rev = 0x900032;
> +    raspi_machine_class_common_init(mc, rmc->board_rev);
> +};
> +
>  static void raspi2b_machine_class_init(ObjectClass *oc, void *data)
>  {
>      MachineClass *mc = MACHINE_CLASS(oc);
> @@ -348,6 +357,10 @@ static void raspi3b_machine_class_init(ObjectClass *oc, 
> void *data)
>  
>  static const TypeInfo raspi_machine_types[] = {
>      {
> +        .name           = MACHINE_TYPE_NAME("raspi1b"),
If it's the B+ model, why not call it raspi1b+ ?

> +        .parent         = TYPE_RASPI_MACHINE,
> +        .class_init     = raspi1b_machine_class_init,
> +    }, {
>          .name           = MACHINE_TYPE_NAME("raspi2b"),
>          .parent         = TYPE_RASPI_MACHINE,
>          .class_init     = raspi2b_machine_class_init,
> 



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