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Re: [PATCH] sd: mmc: Fix SET_BLOCK_COUNT command argument
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From: |
Cédric Le Goater |
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Subject: |
Re: [PATCH] sd: mmc: Fix SET_BLOCK_COUNT command argument |
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Date: |
Wed, 23 Jun 2021 11:16:21 +0200 |
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User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.10.1 |
On 6/23/21 11:12 AM, Bin Meng wrote:
> On Wed, Jun 23, 2021 at 4:55 PM Cédric Le Goater <clg@kaod.org> wrote:
>>
>> On 6/23/21 10:39 AM, Bin Meng wrote:
>>> On Wed, Jun 23, 2021 at 4:30 PM Cédric Le Goater <clg@kaod.org> wrote:
>>>>
>>>> The number of blocks is defined in the lower bits [15:0]
>>>
>>> I checked the physical spec v8.00 and it says bits [31:0] for CMD23
>>> argument.
>>
>> May be that's an eMMC thing. That's what I read from the specs :
>>
>> [31] Reliable Write Request
>> [30:16] set to 0
>> [15:0] number of blocks
>
> I don't think we ever claimed eMMC support in QEMU. Did we?
Is that a question ?
C.