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-rw-r--r--include/asm-ppc/ppc4xx-uic.h93
1 files changed, 47 insertions, 46 deletions
diff --git a/include/asm-ppc/ppc4xx-uic.h b/include/asm-ppc/ppc4xx-uic.h
index b596f0edfb..eeaaa493ef 100644
--- a/include/asm-ppc/ppc4xx-uic.h
+++ b/include/asm-ppc/ppc4xx-uic.h
@@ -29,11 +29,10 @@
/*
* Define the number of UIC's
*/
-#if defined(CONFIG_440SPE) || \
+#if defined(CONFIG_440GX) || defined(CONFIG_440SPE) || \
defined(CONFIG_460EX) || defined(CONFIG_460GT)
#define UIC_MAX 4
-#elif defined(CONFIG_440GX) || \
- defined(CONFIG_440EPX) || defined(CONFIG_440GRX) || \
+#elif defined(CONFIG_440EPX) || defined(CONFIG_440GRX) || \
defined(CONFIG_405EX)
#define UIC_MAX 3
#elif defined(CONFIG_440GP) || defined(CONFIG_440SP) || \
@@ -55,7 +54,23 @@
#define UIC_VR 0x7 /* UIC vector */
#define UIC_VCR 0x8 /* UIC vector configuration */
+/*
+ * On 440GX we use the UICB0 as UIC0. Its the root UIC where all other UIC's
+ * are cascaded on. With this trick we can use the common UIC code for 440GX
+ * too.
+ */
+#if defined(CONFIG_440GX)
+#define UIC0_DCR_BASE 0x200
+#define UIC1_DCR_BASE 0xc0
+#define UIC2_DCR_BASE 0xd0
+#define UIC3_DCR_BASE 0x210
+#else
#define UIC0_DCR_BASE 0xc0
+#define UIC1_DCR_BASE 0xd0
+#define UIC2_DCR_BASE 0xe0
+#define UIC3_DCR_BASE 0xf0
+#endif
+
#define uic0sr (UIC0_DCR_BASE+0x0) /* UIC0 status */
#define uic0er (UIC0_DCR_BASE+0x2) /* UIC0 enable */
#define uic0cr (UIC0_DCR_BASE+0x3) /* UIC0 critical */
@@ -65,7 +80,6 @@
#define uic0vr (UIC0_DCR_BASE+0x7) /* UIC0 vector */
#define uic0vcr (UIC0_DCR_BASE+0x8) /* UIC0 vector configuration */
-#define UIC1_DCR_BASE 0xd0
#define uic1sr (UIC1_DCR_BASE+0x0) /* UIC1 status */
#define uic1er (UIC1_DCR_BASE+0x2) /* UIC1 enable */
#define uic1cr (UIC1_DCR_BASE+0x3) /* UIC1 critical */
@@ -75,11 +89,6 @@
#define uic1vr (UIC1_DCR_BASE+0x7) /* UIC1 vector */
#define uic1vcr (UIC1_DCR_BASE+0x8) /* UIC1 vector configuration */
-#if defined(CONFIG_440GX)
-#define UIC2_DCR_BASE 0x210
-#else
-#define UIC2_DCR_BASE 0xe0
-#endif
#define uic2sr (UIC2_DCR_BASE+0x0) /* UIC2 status-Read Clear */
#define uic2srs (UIC2_DCR_BASE+0x1) /* UIC2 status-Read Set */
#define uic2er (UIC2_DCR_BASE+0x2) /* UIC2 enable */
@@ -90,7 +99,6 @@
#define uic2vr (UIC2_DCR_BASE+0x7) /* UIC2 vector */
#define uic2vcr (UIC2_DCR_BASE+0x8) /* UIC2 vector configuration */
-#define UIC3_DCR_BASE 0xf0
#define uic3sr (UIC3_DCR_BASE+0x0) /* UIC3 status-Read Clear */
#define uic3srs (UIC3_DCR_BASE+0x1) /* UIC3 status-Read Set */
#define uic3er (UIC3_DCR_BASE+0x2) /* UIC3 enable */
@@ -101,27 +109,15 @@
#define uic3vr (UIC3_DCR_BASE+0x7) /* UIC3 vector */
#define uic3vcr (UIC3_DCR_BASE+0x8) /* UIC3 vector configuration */
-#if defined(CONFIG_440GX)
-#define UIC_DCR_BASE 0x200
-#define uicb0sr (UIC_DCR_BASE+0x0) /* UIC Base Status Register */
-#define uicb0er (UIC_DCR_BASE+0x2) /* UIC Base enable */
-#define uicb0cr (UIC_DCR_BASE+0x3) /* UIC Base critical */
-#define uicb0pr (UIC_DCR_BASE+0x4) /* UIC Base polarity */
-#define uicb0tr (UIC_DCR_BASE+0x5) /* UIC Base triggering */
-#define uicb0msr (UIC_DCR_BASE+0x6) /* UIC Base masked status */
-#define uicb0vr (UIC_DCR_BASE+0x7) /* UIC Base vector */
-#define uicb0vcr (UIC_DCR_BASE+0x8) /* UIC Base vector configuration*/
-#endif /* CONFIG_440GX */
-
/* The following is for compatibility with 405 code */
-#define uicsr uic0sr
-#define uicer uic0er
-#define uiccr uic0cr
-#define uicpr uic0pr
-#define uictr uic0tr
-#define uicmsr uic0msr
-#define uicvr uic0vr
-#define uicvcr uic0vcr
+#define uicsr uic0sr
+#define uicer uic0er
+#define uiccr uic0cr
+#define uicpr uic0pr
+#define uictr uic0tr
+#define uicmsr uic0msr
+#define uicvr uic0vr
+#define uicvcr uic0vcr
/*
* Now the interrupt vector definitions. They are different for most of
@@ -188,24 +184,28 @@
#endif /* CONFIG_440GP */
#if defined(CONFIG_440GX)
-/* UIC 0 */
-#define VECNUM_MAL_TXEOB 10
-#define VECNUM_MAL_RXEOB 11
+/* UICB 0 (440GX only) */
+/*
+ * All those defines below are off-by-one, so that the common UIC code
+ * can be used. So VECNUM_UIC1CI refers to VECNUM_UIC0CI etc.
+ */
+#define VECNUM_UIC1CI 0
+#define VECNUM_UIC1NCI 1
+#define VECNUM_UIC2CI 2
+#define VECNUM_UIC2NCI 3
+#define VECNUM_UIC3CI 4
+#define VECNUM_UIC3NCI 5
-/* UIC 1 */
-#define VECNUM_MAL_SERR (32 + 0)
-#define VECNUM_MAL_TXDE (32 + 1)
-#define VECNUM_MAL_RXDE (32 + 2)
-#define VECNUM_ETH0 (32 + 28)
-#define VECNUM_ETH1_OFFS 2
+/* UIC 0, used as UIC1 on 440GX because of UICB0 */
+#define VECNUM_MAL_TXEOB (32 + 10)
+#define VECNUM_MAL_RXEOB (32 + 11)
-/* UICB 0 (440GX only) */
-#define VECNUM_UIC0CI 0
-#define VECNUM_UIC0NCI 1
-#define VECNUM_UIC1CI 2
-#define VECNUM_UIC1NCI 3
-#define VECNUM_UIC2CI 4
-#define VECNUM_UIC2NCI 5
+/* UIC 1, used as UIC2 on 440GX because of UICB0 */
+#define VECNUM_MAL_SERR (64 + 0)
+#define VECNUM_MAL_TXDE (64 + 1)
+#define VECNUM_MAL_RXDE (64 + 2)
+#define VECNUM_ETH0 (64 + 28)
+#define VECNUM_ETH1_OFFS 2
#endif /* CONFIG_440GX */
#if defined(CONFIG_440EPX) || defined(CONFIG_440GRX)
@@ -288,6 +288,7 @@
* Mask definitions (used for example in 4xx_enet.c)
*/
#define UIC_MASK(vec) (0x80000000 >> ((vec) & 0x1f))
+/* UIC_NR won't work for 440GX because of its specific UIC DCR addresses */
#define UIC_NR(vec) ((vec) >> 5)
#endif /* _PPC4xx_UIC_H_ */
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