diff options
Diffstat (limited to 'arch/ppc/cpu/mpc8xxx/ddr/common_timing_params.h')
| -rw-r--r-- | arch/ppc/cpu/mpc8xxx/ddr/common_timing_params.h | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/arch/ppc/cpu/mpc8xxx/ddr/common_timing_params.h b/arch/ppc/cpu/mpc8xxx/ddr/common_timing_params.h new file mode 100644 index 0000000000..5aea517f25 --- /dev/null +++ b/arch/ppc/cpu/mpc8xxx/ddr/common_timing_params.h @@ -0,0 +1,53 @@ +/* + * Copyright 2008 Freescale Semiconductor, Inc. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * Version 2 as published by the Free Software Foundation. + */ + +#ifndef COMMON_TIMING_PARAMS_H +#define COMMON_TIMING_PARAMS_H + +typedef struct { + /* parameters to constrict */ + + unsigned int tCKmin_X_ps; + unsigned int tCKmax_ps; + unsigned int tCKmax_max_ps; + unsigned int tRCD_ps; + unsigned int tRP_ps; + unsigned int tRAS_ps; + + unsigned int tWR_ps; /* maximum = 63750 ps */ + unsigned int tWTR_ps; /* maximum = 63750 ps */ + unsigned int tRFC_ps; /* maximum = 255 ns + 256 ns + .75 ns + = 511750 ps */ + + unsigned int tRRD_ps; /* maximum = 63750 ps */ + unsigned int tRC_ps; /* maximum = 254 ns + .75 ns = 254750 ps */ + + unsigned int refresh_rate_ps; + + unsigned int tIS_ps; /* byte 32, spd->ca_setup */ + unsigned int tIH_ps; /* byte 33, spd->ca_hold */ + unsigned int tDS_ps; /* byte 34, spd->data_setup */ + unsigned int tDH_ps; /* byte 35, spd->data_hold */ + unsigned int tRTP_ps; /* byte 38, spd->trtp */ + unsigned int tDQSQ_max_ps; /* byte 44, spd->tdqsq */ + unsigned int tQHS_ps; /* byte 45, spd->tqhs */ + + unsigned int ndimms_present; + unsigned int lowest_common_SPD_caslat; + unsigned int highest_common_derated_caslat; + unsigned int additive_latency; + unsigned int all_DIMMs_burst_lengths_bitmask; + unsigned int all_DIMMs_registered; + unsigned int all_DIMMs_unbuffered; + unsigned int all_DIMMs_ECC_capable; + + unsigned long long total_mem; + unsigned long long base_address; +} common_timing_params_t; + +#endif |
