diff options
Diffstat (limited to 'src/northbridge/intel/sandybridge')
| -rw-r--r-- | src/northbridge/intel/sandybridge/raminit_ivy.c | 93 |
1 files changed, 48 insertions, 45 deletions
diff --git a/src/northbridge/intel/sandybridge/raminit_ivy.c b/src/northbridge/intel/sandybridge/raminit_ivy.c index 67927ed033..fa636565a2 100644 --- a/src/northbridge/intel/sandybridge/raminit_ivy.c +++ b/src/northbridge/intel/sandybridge/raminit_ivy.c @@ -29,94 +29,94 @@ static u32 get_FRQ(u32 tCK, u8 base_freq) return FRQ; } -/* Get REFI based on MC frequency, tREFI = 7.8usec */ -static u32 get_REFI(u32 tCK, u8 base_freq) +/* Get REFI based on frequency index, tREFI = 7.8usec */ +static u32 get_REFI(u32 FRQ, u8 base_freq) { if (base_freq == 100) - return frq_refi_map[1][get_FRQ(tCK, 100) - 7]; + return frq_refi_map[1][FRQ - 7]; else - return frq_refi_map[0][get_FRQ(tCK, 133) - 3]; + return frq_refi_map[0][FRQ - 3]; } -/* Get XSOffset based on MC frequency, tXS-Offset: tXS = tRFC + 10ns */ -static u8 get_XSOffset(u32 tCK, u8 base_freq) +/* Get XSOffset based on frequency index, tXS-Offset: tXS = tRFC + 10ns */ +static u8 get_XSOffset(u32 FRQ, u8 base_freq) { if (base_freq == 100) - return frq_xs_map[1][get_FRQ(tCK, 100) - 7]; + return frq_xs_map[1][FRQ - 7]; else - return frq_xs_map[0][get_FRQ(tCK, 133) - 3]; + return frq_xs_map[0][FRQ - 3]; } -/* Get MOD based on MC frequency */ -static u8 get_MOD(u32 tCK, u8 base_freq) +/* Get MOD based on frequency index */ +static u8 get_MOD(u32 FRQ, u8 base_freq) { if (base_freq == 100) - return frq_mod_map[1][get_FRQ(tCK, 100) - 7]; + return frq_mod_map[1][FRQ - 7]; else - return frq_mod_map[0][get_FRQ(tCK, 133) - 3]; + return frq_mod_map[0][FRQ - 3]; } -/* Get Write Leveling Output delay based on MC frequency */ -static u8 get_WLO(u32 tCK, u8 base_freq) +/* Get Write Leveling Output delay based on frequency index */ +static u8 get_WLO(u32 FRQ, u8 base_freq) { if (base_freq == 100) - return frq_wlo_map[1][get_FRQ(tCK, 100) - 7]; + return frq_wlo_map[1][FRQ - 7]; else - return frq_wlo_map[0][get_FRQ(tCK, 133) - 3]; + return frq_wlo_map[0][FRQ - 3]; } -/* Get CKE based on MC frequency */ -static u8 get_CKE(u32 tCK, u8 base_freq) +/* Get CKE based on frequency index */ +static u8 get_CKE(u32 FRQ, u8 base_freq) { if (base_freq == 100) - return frq_cke_map[1][get_FRQ(tCK, 100) - 7]; + return frq_cke_map[1][FRQ - 7]; else - return frq_cke_map[0][get_FRQ(tCK, 133) - 3]; + return frq_cke_map[0][FRQ - 3]; } -/* Get XPDLL based on MC frequency */ -static u8 get_XPDLL(u32 tCK, u8 base_freq) +/* Get XPDLL based on frequency index */ +static u8 get_XPDLL(u32 FRQ, u8 base_freq) { if (base_freq == 100) - return frq_xpdll_map[1][get_FRQ(tCK, 100) - 7]; + return frq_xpdll_map[1][FRQ - 7]; else - return frq_xpdll_map[0][get_FRQ(tCK, 133) - 3]; + return frq_xpdll_map[0][FRQ - 3]; } -/* Get XP based on MC frequency */ -static u8 get_XP(u32 tCK, u8 base_freq) +/* Get XP based on frequency index */ +static u8 get_XP(u32 FRQ, u8 base_freq) { if (base_freq == 100) - return frq_xp_map[1][get_FRQ(tCK, 100) - 7]; + return frq_xp_map[1][FRQ - 7]; else - return frq_xp_map[0][get_FRQ(tCK, 133) - 3]; + return frq_xp_map[0][FRQ - 3]; } -/* Get AONPD based on MC frequency */ -static u8 get_AONPD(u32 tCK, u8 base_freq) +/* Get AONPD based on frequency index */ +static u8 get_AONPD(u32 FRQ, u8 base_freq) { if (base_freq == 100) - return frq_aonpd_map[1][get_FRQ(tCK, 100) - 7]; + return frq_aonpd_map[1][FRQ - 7]; else - return frq_aonpd_map[0][get_FRQ(tCK, 133) - 3]; + return frq_aonpd_map[0][FRQ - 3]; } -/* Get COMP2 based on MC frequency */ -static u32 get_COMP2(u32 tCK, u8 base_freq) +/* Get COMP2 based on frequency index */ +static u32 get_COMP2(u32 FRQ, u8 base_freq) { if (base_freq == 100) - return frq_comp2_map[1][get_FRQ(tCK, 100) - 7]; + return frq_comp2_map[1][FRQ - 7]; else - return frq_comp2_map[0][get_FRQ(tCK, 133) - 3]; + return frq_comp2_map[0][FRQ - 3]; } static void ivb_normalize_tclk(ramctr_timing *ctrl, bool ref_100mhz_support) @@ -363,14 +363,16 @@ static void dram_timing(ramctr_timing *ctrl) ctrl->tRFC = DIV_ROUND_UP(ctrl->tRFC, ctrl->tCK); printk(BIOS_DEBUG, "Selected tRFC : %uT\n", ctrl->tRFC); - ctrl->tREFI = get_REFI(ctrl->tCK, ctrl->base_freq); - ctrl->tMOD = get_MOD(ctrl->tCK, ctrl->base_freq); - ctrl->tXSOffset = get_XSOffset(ctrl->tCK, ctrl->base_freq); - ctrl->tWLO = get_WLO(ctrl->tCK, ctrl->base_freq); - ctrl->tCKE = get_CKE(ctrl->tCK, ctrl->base_freq); - ctrl->tXPDLL = get_XPDLL(ctrl->tCK, ctrl->base_freq); - ctrl->tXP = get_XP(ctrl->tCK, ctrl->base_freq); - ctrl->tAONPD = get_AONPD(ctrl->tCK, ctrl->base_freq); + const u32 FRQ = get_FRQ(ctrl->tCK, ctrl->base_freq); + + ctrl->tREFI = get_REFI(FRQ, ctrl->base_freq); + ctrl->tMOD = get_MOD(FRQ, ctrl->base_freq); + ctrl->tXSOffset = get_XSOffset(FRQ, ctrl->base_freq); + ctrl->tWLO = get_WLO(FRQ, ctrl->base_freq); + ctrl->tCKE = get_CKE(FRQ, ctrl->base_freq); + ctrl->tXPDLL = get_XPDLL(FRQ, ctrl->base_freq); + ctrl->tXP = get_XP(FRQ, ctrl->base_freq); + ctrl->tAONPD = get_AONPD(FRQ, ctrl->base_freq); } static void dram_freq(ramctr_timing *ctrl) @@ -432,6 +434,7 @@ static void dram_freq(ramctr_timing *ctrl) static void dram_ioregs(ramctr_timing *ctrl) { + const u32 FRQ = get_FRQ(ctrl->tCK, ctrl->base_freq); u32 reg; int channel; @@ -459,7 +462,7 @@ static void dram_ioregs(ramctr_timing *ctrl) printram("done\n"); /* Set COMP2 */ - MCHBAR32(CRCOMPOFST2) = get_COMP2(ctrl->tCK, ctrl->base_freq); + MCHBAR32(CRCOMPOFST2) = get_COMP2(FRQ, ctrl->base_freq); printram("COMP2 done\n"); /* Set COMP1 */ |