FreeCalypso > hg > tcs211-l1-reconst

comparison chipsetsw/layer1/cfile/l1_pwmgr.c @ 124:190c68fa5689

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l1_pwmgr.c: l1ctl_pgm_clk32() reconstructed
author Mychaela Falconia <falcon@ivan.Harhan.ORG>
date Thu, 12 May 2016 03:10:45 +0000
parents 63137aa0ad1f
children 813c4bb83603
comparison
equal deleted inserted replaced
123:63137aa0ad1f 124:190c68fa5689
378 #define RATIO(HF,LF, root, frac) \ 378 #define RATIO(HF,LF, root, frac) \
379 root = (UWORD32)(HF/LF); \ 379 root = (UWORD32)(HF/LF); \
380 frac = (UWORD32)(((HF - (root*LF)) << 16) / LF); 380 frac = (UWORD32)(((HF - (root*LF)) << 16) / LF);
381 381
382 // previous ratio with frac + 0.5 382 // previous ratio with frac + 0.5
383 #if 0 /* original LoCosto code */
383 #define RATIO2(HF,LF, root, frac) \ 384 #define RATIO2(HF,LF, root, frac) \
384 if(LF){ \ 385 if(LF){ \
385 root = (UWORD32)(HF/LF); \ 386 root = (UWORD32)(HF/LF); \
386 frac = (UWORD32)((((HF - (root*LF)) << 16) + 0.5*LF) / LF);} 387 frac = (UWORD32)((((HF - (root*LF)) << 16) + 0.5*LF) / LF);}
388 #else /* FreeCalypso TCS211 reconstruction */
389 #define RATIO2(HF,LF, root, frac) \
390 { \
391 root = (UWORD32)(HF/LF); \
392 frac = (UWORD32)((((HF - (root*LF)) << 16) + 0.5*LF) / LF);}
393 #endif
387 394
388 #define HFTHEO(LF, root, frac, hftheo) \ 395 #define HFTHEO(LF, root, frac, hftheo) \
389 hftheo = root*LF + ((frac*LF) >>16); 396 hftheo = root*LF + ((frac*LF) >>16);
390 397
391 #define SUM(HF, LF, nb, ind) \ 398 #define SUM(HF, LF, nb, ind) \
1026 // REM: nb_hf is the real value of the high frequency (ex in nbr of 65Mhz clock) 1033 // REM: nb_hf is the real value of the high frequency (ex in nbr of 65Mhz clock)
1027 // To compute the ratio, nb_hf must be expressed in nbr of clock 4.33 Mhz 1034 // To compute the ratio, nb_hf must be expressed in nbr of clock 4.33 Mhz
1028 // that's why nb_hf is divided by 3*l1_config.dpll 1035 // that's why nb_hf is divided by 3*l1_config.dpll
1029 // RATIO2(nb_hf/(3*l1_config.dpll),nb_32khz,inc_sixteen,inc_frac); 1036 // RATIO2(nb_hf/(3*l1_config.dpll),nb_32khz,inc_sixteen,inc_frac);
1030 // this line above is equal to the ligne below: 1037 // this line above is equal to the ligne below:
1031 lf=(UWORD32)((UWORD32)(3*((UWORD32)((UWORD32)(l1_config.dpll)*nb_32khz)))); //OMAPS00090550 1038 lf=(UWORD32)(3*l1_config.dpll*nb_32khz);
1032 RATIO2(nb_hf,lf,inc_sixteen,inc_frac); 1039 RATIO2(nb_hf,lf,inc_sixteen,inc_frac);
1033 1040
1034 // integer part 1041 // integer part
1035 ULDP_INCSIXTEEN_UPDATE(inc_sixteen); 1042 ULDP_INCSIXTEEN_UPDATE(inc_sixteen);
1036 1043