diff options
| author | Nathan Rossi <nathan.rossi@xilinx.com> | 2013-03-15 16:41:59 +0000 |
|---|---|---|
| committer | Peter Maydell <peter.maydell@linaro.org> | 2013-03-15 16:41:59 +0000 |
| commit | 08a9635b68757e18a6a8bf8569353b40bb6c1fd1 (patch) | |
| tree | c14fbd2f1f90f98c1613ba07c679523927dbbf9f /hw | |
| parent | e0891bd8bfd3349fc3fecde30e51900059f53f11 (diff) | |
xilinx_spips: Add missing dual-bus snoop commands
Added additional commands to the switch to check for when snooping commands in
dual bus mode setups. Cleaned up code to use an enum.
Signed-off-by: Nathan Rossi <nathan.rossi@xilinx.com>
Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Message-id: 848c116c711dab0af10729a487968384aadd9faf.1362373359.git.peter.crosthwaite@xilinx.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Diffstat (limited to 'hw')
| -rw-r--r-- | hw/xilinx_spips.c | 29 |
1 files changed, 23 insertions, 6 deletions
diff --git a/hw/xilinx_spips.c b/hw/xilinx_spips.c index efa1449386..3183f7a992 100644 --- a/hw/xilinx_spips.c +++ b/hw/xilinx_spips.c @@ -115,6 +115,19 @@ #define SNOOP_NONE 0xFE #define SNOOP_STRIPING 0 +typedef enum { + READ = 0x3, + FAST_READ = 0xb, + DOR = 0x3b, + QOR = 0x6b, + DIOR = 0xbb, + QIOR = 0xeb, + + PP = 0x2, + DPP = 0xa2, + QPP = 0x32, +} FlashCMD; + typedef struct { SysBusDevice busdev; MemoryRegion iomem; @@ -251,15 +264,19 @@ static void xilinx_spips_flush_txfifo(XilinxSPIPS *s) switch (s->snoop_state) { case (SNOOP_CHECKING): switch (tx) { /* new instruction code */ - case 0x0b: /* dual/quad output read DOR/QOR */ - case 0x6b: - s->snoop_state = 4; + case READ: /* 3 address bytes, no dummy bytes/cycles */ + case PP: + case DPP: + case QPP: + s->snoop_state = 3; break; - /* FIXME: these vary between vendor - set to spansion */ - case 0xbb: /* high performance dual read DIOR */ + case FAST_READ: /* 3 address bytes, 1 dummy byte */ + case DOR: + case QOR: + case DIOR: /* FIXME: these vary between vendor - set to spansion */ s->snoop_state = 4; break; - case 0xeb: /* high performance quad read QIOR */ + case QIOR: /* 3 address bytes, 2 dummy bytes */ s->snoop_state = 6; break; default: |