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authorWolfgang Denk <wd@pollux.denx.de>2006-03-12 22:45:47 +0100
committerWolfgang Denk <wd@pollux.denx.de>2006-03-12 22:45:47 +0100
commitca27381df15c99c7b542f847359a8a4543f24d2a (patch)
treea60e1f9a59750b91bd62d0e9254fdc25267f5a03 /include/mpc85xx.h
parent8123eee8756dd500267ddfe948090d69886d0fb7 (diff)
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Add (some) definitions for the MPC85xx local bus controller
Patch by Murray Jensen, 08 Jul 2005
Diffstat (limited to 'include/mpc85xx.h')
-rw-r--r--include/mpc85xx.h35
1 files changed, 35 insertions, 0 deletions
diff --git a/include/mpc85xx.h b/include/mpc85xx.h
index 60b6c61..a4d99b2 100644
--- a/include/mpc85xx.h
+++ b/include/mpc85xx.h
@@ -25,4 +25,39 @@
#define SCCR_DFBRG10 0x00000002 /* BRGCLK division by 64 */
#define SCCR_DFBRG11 0x00000003 /* BRGCLK division by 256 */
+/*
+ * Local Bus Controller - memory controller registers
+ */
+#define BRx_V 0x00000001 /* Bank Valid */
+#define BRx_MS_GPCM 0x00000000 /* G.P.C.M. Machine Select */
+#define BRx_MS_SDRAM 0x00000000 /* SDRAM Machine Select */
+#define BRx_MS_UPMA 0x00000080 /* U.P.M.A Machine Select */
+#define BRx_MS_UPMB 0x000000a0 /* U.P.M.B Machine Select */
+#define BRx_MS_UPMC 0x000000c0 /* U.P.M.C Machine Select */
+#define BRx_PS_8 0x00000800 /* 8 bit port size */
+#define BRx_PS_32 0x00001800 /* 32 bit port size */
+#define BRx_BA_MSK 0xffff8000 /* Base Address Mask */
+
+#define ORxG_EAD 0x00000001 /* External addr latch delay */
+#define ORxG_EHTR 0x00000002 /* Extended hold time on read */
+#define ORxG_TRLX 0x00000004 /* Timing relaxed */
+#define ORxG_SETA 0x00000008 /* External address termination */
+#define ORxG_SCY_10_CLK 0x000000a0 /* 10 clock cycles wait states */
+#define ORxG_SCY_15_CLK 0x000000f0 /* 15 clock cycles wait states */
+#define ORxG_XACS 0x00000100 /* Extra addr to CS setup */
+#define ORxG_ACS_DIV2 0x00000600 /* CS is output 1/2 a clock later*/
+#define ORxG_CSNT 0x00000800 /* Chip Select Negation Time */
+
+#define ORxU_BI 0x00000100 /* Burst Inhibit */
+#define ORxU_AM_MSK 0xffff8000 /* Address Mask Mask */
+
+#define MxMR_OP_NORM 0x00000000 /* Normal Operation */
+#define MxMR_DSx_2_CYCL 0x00400000 /* 2 cycle Disable Period */
+#define MxMR_OP_WARR 0x10000000 /* Write to Array */
+#define MxMR_BSEL 0x80000000 /* Bus Select */
+
+/* helpers to convert values into an OR address mask (GPCM mode) */
+#define P2SZ_TO_AM(s) ((~((s) - 1)) & 0xffff8000) /* must be pow of 2 */
+#define MEG_TO_AM(m) P2SZ_TO_AM((m) << 20)
+
#endif /* __MPC85xx_H__ */