Commit e9cbbcac authored by Edgar E. Iglesias's avatar Edgar E. Iglesias Committed by Edgar E. Iglesias
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pflash: Dont open memarea for full IO if already done. 



When wcycle is non zero the area is already opened for readable IO.
Avoiding the re-registration of the memarea significantly speeds up
the flash emulation. In particular for flashes connected through 8 or
16-bit buses.

Signed-off-by: default avatarEdgar E. Iglesias <edgar.iglesias@petalogix.com>
parent 4737fa26

hw/pflash_cfi01.c

+4 −2
Original line number Diff line number Diff line
@@ -247,8 +247,10 @@ static void pflash_write(pflash_t *pfl, target_phys_addr_t offset, 
    DPRINTF("%s: writing offset " TARGET_FMT_plx " value %08x width %d wcycle 0x%x\n",

            __func__, offset, value, width, pfl->wcycle);



    if (!pfl->wcycle) {

        /* Set the device in I/O access mode */

        cpu_register_physical_memory(pfl->base, pfl->total_len, pfl->fl_mem);

    }



    switch (pfl->wcycle) {

    case 0: