diff options
| author | Peter A. G. Crosthwaite <peter.crosthwaite@petalogix.com> | 2012-07-24 12:23:22 +1000 |
|---|---|---|
| committer | Peter Crosthwaite <peter.crosthwaite@xilinx.com> | 2012-10-10 11:13:31 +1000 |
| commit | 66530953319427d7c67a723076acd68075dc7db2 (patch) | |
| tree | 6db9a1fea1d50f2d02a3ffeacb922332df9d208a /hw/ssi-sd.c | |
| parent | b4a76e84f4997392c9d2eb6f4373dc376d2ffd82 (diff) | |
ssi: Implemented CS behaviour
Added default CS behaviour for SSI slaves. SSI devices can set a property
to enable CS behaviour which will create a GPIO on the device which is the
CS. Tristating of the bus on SSI transfers is implemented.
Signed-off-by: Peter A. G. Crosthwaite <peter.crosthwaite@petalogix.com>
Acked-by: Peter Maydell <peter.maydell@linaro.org>
Diffstat (limited to 'hw/ssi-sd.c')
| -rw-r--r-- | hw/ssi-sd.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/hw/ssi-sd.c b/hw/ssi-sd.c index b519bdb29a..cbbc645213 100644 --- a/hw/ssi-sd.c +++ b/hw/ssi-sd.c @@ -197,6 +197,7 @@ static uint32_t ssi_sd_transfer(SSISlave *dev, uint32_t val) static void ssi_sd_save(QEMUFile *f, void *opaque) { + SSISlave *ss = SSI_SLAVE(opaque); ssi_sd_state *s = (ssi_sd_state *)opaque; int i; @@ -209,10 +210,13 @@ static void ssi_sd_save(QEMUFile *f, void *opaque) qemu_put_be32(f, s->arglen); qemu_put_be32(f, s->response_pos); qemu_put_be32(f, s->stopping); + + qemu_put_be32(f, ss->cs); } static int ssi_sd_load(QEMUFile *f, void *opaque, int version_id) { + SSISlave *ss = SSI_SLAVE(opaque); ssi_sd_state *s = (ssi_sd_state *)opaque; int i; @@ -229,6 +233,8 @@ static int ssi_sd_load(QEMUFile *f, void *opaque, int version_id) s->response_pos = qemu_get_be32(f); s->stopping = qemu_get_be32(f); + ss->cs = qemu_get_be32(f); + return 0; } |