diff options
| author | Paul Mundt <lethal@linux-sh.org> | 2010-10-14 07:37:01 +0900 |
|---|---|---|
| committer | Paul Mundt <lethal@linux-sh.org> | 2010-10-14 07:37:01 +0900 |
| commit | 61a46766c9d5d8fb5dad23da1b7cc4cb8b0107da (patch) | |
| tree | 6b91ef707e1a1e4d202ab817ac066509a72b1c8b /arch/sh/include/mach-sdk7786 | |
| parent | f7fcec93b619337feb9da829b8a9ab6ba86393bc (diff) | |
| download | linux-rt-61a46766c9d5d8fb5dad23da1b7cc4cb8b0107da.tar.gz | |
sh: pci: Support slot 4 routing on SDK7786.
SDK7786 supports connecting either slot3 or 4 to the same PCIe port by
way of FPGA muxing. By default the vertical slot 3 on the baseboard is
enabled, so this adds in a command line option for forcibly enabling the
slot 4 edge connector.
If nothing has been specified on the command line, we fall back to
reading the resistor values for card presence to figure out where to
route the port to.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'arch/sh/include/mach-sdk7786')
| -rw-r--r-- | arch/sh/include/mach-sdk7786/mach/fpga.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/arch/sh/include/mach-sdk7786/mach/fpga.h b/arch/sh/include/mach-sdk7786/mach/fpga.h index 416b621d94d1..8cc784147b96 100644 --- a/arch/sh/include/mach-sdk7786/mach/fpga.h +++ b/arch/sh/include/mach-sdk7786/mach/fpga.h @@ -31,7 +31,16 @@ #define EXTASR 0x110 #define SPCAR 0x120 #define INTMSR 0x130 + #define PCIECR 0x140 +#define PCIECR_PCIEMUX1 BIT(15) +#define PCIECR_PCIEMUX0 BIT(14) +#define PCIECR_PRST4 BIT(12) /* slot 4 card present */ +#define PCIECR_PRST3 BIT(11) /* slot 3 card present */ +#define PCIECR_PRST2 BIT(10) /* slot 2 card present */ +#define PCIECR_PRST1 BIT(9) /* slot 1 card present */ +#define PCIECR_CLKEN BIT(4) + #define FAER 0x150 #define USRGPIR 0x160 /* 0x170 reserved */ |