On Thu, Jun 27, 2019 at 2:06 PM Philippe Mathieu-Daudé
<philmd@redhat.com> wrote:
>
> From: Stephen Checkoway <stephen.checkoway@oberlin.edu>
>
> When the flash device is performing a chip erase, all commands are
> ignored. When it is performing a sector erase, only the erase suspend
> command is valid, which is currently not supported.
>
> In particular, the reset command should not cause the device to reset to
> read array mode while programming is on going.
>
> Signed-off-by: Stephen Checkoway <stephen.checkoway@oberlin.edu>
> Message-Id: <20190426162624.55977-8-stephen.checkoway@oberlin.edu>
> Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Alistair
> ---
> hw/block/pflash_cfi02.c | 3 ++-
> 1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/hw/block/pflash_cfi02.c b/hw/block/pflash_cfi02.c
> index 13f76fa71d..39daa95833 100644
> --- a/hw/block/pflash_cfi02.c
> +++ b/hw/block/pflash_cfi02.c
> @@ -311,7 +311,8 @@ static void pflash_write(void *opaque, hwaddr offset, uint64_t value,
> trace_pflash_io_write(offset, width, width << 1, value, pfl->wcycle);
> cmd = value;
> if (pfl->cmd != 0xA0) {
> - if (cmd == 0xF0) {
> + /* Reset does nothing during chip erase and sector erase. */
> + if (cmd == 0xF0 && pfl->cmd != 0x10 && pfl->cmd != 0x30) {
> if (pfl->wcycle == WCYCLE_AUTOSELECT_CFI) {
> /* Return to autoselect mode. */
> pfl->wcycle = 3;
> --
> 2.20.1
>
>