On Fri, Oct 27, 2017 at 7:56 AM, Francisco Iglesias
<frasse.igles...@gmail.com> wrote:
> Add support for continuous read out of the RDSR and READ_FSR status
> registers until the chip select is deasserted. This feature is supported
> by amongst others 1 or more flashtypes manufactured by Numonyx (Micron),
> Windbond, SST, Gigadevice, Eon and Macronix.
>
> Signed-off-by: Francisco Iglesias <frasse.igles...@gmail.com>
> Acked-by: Marcin Krzemiński <mar.krzemin...@gmail.com>
Acked-by: Alistair Francis <alistair.fran...@xilinx.com>
Alistair
> ---
> hw/block/m25p80.c | 8 +++++++-
> 1 file changed, 7 insertions(+), 1 deletion(-)
>
> diff --git a/hw/block/m25p80.c b/hw/block/m25p80.c
> index a2438b9..2971519 100644
> --- a/hw/block/m25p80.c
> +++ b/hw/block/m25p80.c
> @@ -423,6 +423,7 @@ typedef struct Flash {
> uint8_t data[M25P80_INTERNAL_DATA_BUFFER_SZ];
> uint32_t len;
> uint32_t pos;
> + bool data_read_loop;
> uint8_t needed_bytes;
> uint8_t cmd_in_progress;
> uint32_t cur_addr;
> @@ -983,6 +984,7 @@ static void decode_new_cmd(Flash *s, uint32_t value)
> }
> s->pos = 0;
> s->len = 1;
> + s->data_read_loop = true;
> s->state = STATE_READING_DATA;
> break;
>
> @@ -993,6 +995,7 @@ static void decode_new_cmd(Flash *s, uint32_t value)
> }
> s->pos = 0;
> s->len = 1;
> + s->data_read_loop = true;
> s->state = STATE_READING_DATA;
> break;
>
> @@ -1133,6 +1136,7 @@ static int m25p80_cs(SSISlave *ss, bool select)
> s->pos = 0;
> s->state = STATE_IDLE;
> flash_sync_dirty(s, -1);
> + s->data_read_loop = false;
> }
>
> DB_PRINT_L(0, "%sselect\n", select ? "de" : "");
> @@ -1198,7 +1202,9 @@ static uint32_t m25p80_transfer8(SSISlave *ss, uint32_t
> tx)
> s->pos++;
> if (s->pos == s->len) {
> s->pos = 0;
> - s->state = STATE_IDLE;
> + if (!s->data_read_loop) {
> + s->state = STATE_IDLE;
> + }
> }
> break;
>
> --
> 2.9.3
>
>
