diff options
| -rw-r--r-- | CHANGELOG | 3 | ||||
| -rw-r--r-- | include/mpc85xx.h | 35 |
2 files changed, 38 insertions, 0 deletions
@@ -2,6 +2,9 @@ Changes since U-Boot 1.1.4: ====================================================================== +* Add (some) definitions for the MPC85xx local bus controller + Patch by Murray Jensen, 08 Jul 2005 + * Add CPM2 I/O pin functions for MPC85xx processors Patch by Murray Jensen, 08 Jul 2005 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__ */ |