drm/i915: add SBI registers
authorEugeni Dodonov <eugeni.dodonov@intel.com>
Thu, 29 Mar 2012 15:32:29 +0000 (12:32 -0300)
committerDaniel Vetter <daniel.vetter@ffwll.ch>
Mon, 9 Apr 2012 16:04:01 +0000 (18:04 +0200)
Those are responsible for the Sideband Interface programming.

v2: rename SBI bits to better reflect their meaning

Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Eugeni Dodonov <eugeni.dodonov@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
drivers/gpu/drm/i915/i915_reg.h

index a87f41c9224385f71503e73fd8c39d4bc092c09a..542128c80546c6efdec63e577d61fe782d216d5e 100644 (file)
                                        DDI_BUF_TRANS_A, \
                                        DDI_BUF_TRANS_B)
 
+/* Sideband Interface (SBI) is programmed indirectly, via
+ * SBI_ADDR, which contains the register offset; and SBI_DATA,
+ * which contains the payload */
+#define SBI_ADDR                               0xC6000
+#define SBI_DATA                               0xC6004
+#define SBI_CTL_STAT                   0xC6008
+#define  SBI_CTL_OP_CRRD               (0x6<<8)
+#define  SBI_CTL_OP_CRWR               (0x7<<8)
+#define  SBI_RESPONSE_FAIL             (0x1<<1)
+#define  SBI_RESPONSE_SUCCESS  (0x0<<1)
+#define  SBI_BUSY                              (0x1<<0)
+#define  SBI_READY                             (0x0<<0)
 #endif /* _I915_REG_H_ */