[Qemu-block] [PATCH] pflash_cfi01: fix per device sector length in CFI table

[David Engraf]

The CFI entry for sector length must be set to sector length per device. 
This is important for boards using multiple devices like the ARM 
Vexpress board (width = 4, device-width = 2).

Linux and u-boots calculate the size ratio by dividing both values:

size_ratio = info->portwidth / info->chipwidth;

After that the sector length will be multiplied by the size_ratio, thus 
the CFI entry for sector length is doubled. When Linux or u-boot send a 
sector erase, they expect to erase the doubled sector length, but QEMU 
only erases the board specified sector length.

This patch fixes the sector length in the CFI table to match the length 
per device, equal to blocks_per_device.

Signed-off-by: David Engraf <address@hidden>

fix_pflash_sector_len.patch
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