86 compute_ranksize(const struct ddr4_spd_eeprom_s *spd)  in compute_ranksize()  argument
96 	if ((spd->density_banks & 0xf) <= 7)  in compute_ranksize()
97 		nbit_sdram_cap_bsize = (spd->density_banks & 0xf) + 28;  in compute_ranksize()
98 	if ((spd->bus_width & 0x7) < 4)  in compute_ranksize()
99 		nbit_primary_bus_width = (spd->bus_width & 0x7) + 3;  in compute_ranksize()
100 	if ((spd->organization & 0x7) < 4)  in compute_ranksize()
101 		nbit_sdram_width = (spd->organization & 0x7) + 2;  in compute_ranksize()
102 	package_3ds = (spd->package_type & 0x3) == 0x2;  in compute_ranksize()
103 	if ((spd->package_type & 0x80) && !package_3ds) { /* other than 3DS */  in compute_ranksize()
108 		die_count = (spd->package_type >> 4) & 0x7;  in compute_ranksize()
129 					 const generic_spd_eeprom_t *spd,  in ddr_compute_dimm_parameters()  argument
143 	if (spd->mem_type) {  in ddr_compute_dimm_parameters()
144 		if (spd->mem_type != SPD_MEMTYPE_DDR4) {  in ddr_compute_dimm_parameters()
154 	retval = ddr4_spd_check(spd);  in ddr_compute_dimm_parameters()
166 	if ((spd->info_size_crc & 0xF) > 2)  in ddr_compute_dimm_parameters()
167 		memcpy(pdimm->mpart, spd->mpart, sizeof(pdimm->mpart) - 1);  in ddr_compute_dimm_parameters()
170 	pdimm->n_ranks = ((spd->organization >> 3) & 0x7) + 1;  in ddr_compute_dimm_parameters()
171 	pdimm->rank_density = compute_ranksize(spd);  in ddr_compute_dimm_parameters()
173 	pdimm->die_density = spd->density_banks & 0xf;  in ddr_compute_dimm_parameters()
174 	pdimm->primary_sdram_width = 1 << (3 + (spd->bus_width & 0x7));  in ddr_compute_dimm_parameters()
175 	if ((spd->bus_width >> 3) & 0x3)  in ddr_compute_dimm_parameters()
181 	pdimm->device_width = 1 << ((spd->organization & 0x7) + 2);  in ddr_compute_dimm_parameters()
182 	pdimm->package_3ds = (spd->package_type & 0x3) == 0x2 ?  in ddr_compute_dimm_parameters()
183 			     (spd->package_type >> 4) & 0x7 : 0;  in ddr_compute_dimm_parameters()
188 	switch (spd->module_type & DDR4_SPD_MODULETYPE_MASK) {  in ddr_compute_dimm_parameters()
192 		if (spd->mod_section.registered.reg_map & 0x1)  in ddr_compute_dimm_parameters()
194 		val = spd->mod_section.registered.ca_stren;  in ddr_compute_dimm_parameters()
197 		val = spd->mod_section.registered.clk_stren;  in ddr_compute_dimm_parameters()
219 		if (spd->mod_section.unbuffered.addr_mapping & 0x1)  in ddr_compute_dimm_parameters()
221 		if ((spd->mod_section.unbuffered.mod_height & 0xe0) == 0 &&  in ddr_compute_dimm_parameters()
222 		    (spd->mod_section.unbuffered.ref_raw_card == 0x04)) {  in ddr_compute_dimm_parameters()
225 				if (spd->mapping[i] == udimm_rc_e_dq[i])  in ddr_compute_dimm_parameters()
229 				      60 + i, spd->mapping[i],  in ddr_compute_dimm_parameters()
231 				ptr = (u8 *)&spd->mapping[i];  in ddr_compute_dimm_parameters()
240 		printf("unknown module_type 0x%02X\n", spd->module_type);  in ddr_compute_dimm_parameters()
245 	pdimm->n_row_addr = ((spd->addressing >> 3) & 0x7) + 12;  in ddr_compute_dimm_parameters()
246 	pdimm->n_col_addr = (spd->addressing & 0x7) + 9;  in ddr_compute_dimm_parameters()
247 	pdimm->bank_addr_bits = (spd->density_banks >> 4) & 0x3;  in ddr_compute_dimm_parameters()
248 	pdimm->bank_group_bits = (spd->density_banks >> 6) & 0x3;  in ddr_compute_dimm_parameters()
274 	if ((spd->timebases & 0xf) == 0x0) {  in ddr_compute_dimm_parameters()
283 	pdimm->tckmin_x_ps = spd_to_ps(spd->tck_min, spd->fine_tck_min);  in ddr_compute_dimm_parameters()
286 	pdimm->tckmax_ps = spd_to_ps(spd->tck_max, spd->fine_tck_max);  in ddr_compute_dimm_parameters()
296 	pdimm->caslat_x  = (spd->caslat_b1 << 7)	|  in ddr_compute_dimm_parameters()
297 			   (spd->caslat_b2 << 15)	|  in ddr_compute_dimm_parameters()
298 			   (spd->caslat_b3 << 23);  in ddr_compute_dimm_parameters()
300 	BUG_ON(spd->caslat_b4 != 0);  in ddr_compute_dimm_parameters()
305 	pdimm->taa_ps = spd_to_ps(spd->taa_min, spd->fine_taa_min);  in ddr_compute_dimm_parameters()
310 	pdimm->trcd_ps = spd_to_ps(spd->trcd_min, spd->fine_trcd_min);  in ddr_compute_dimm_parameters()
315 	pdimm->trp_ps = spd_to_ps(spd->trp_min, spd->fine_trp_min);  in ddr_compute_dimm_parameters()
318 	pdimm->tras_ps = (((spd->tras_trc_ext & 0xf) << 8) +  in ddr_compute_dimm_parameters()
319 			  spd->tras_min_lsb) * pdimm->mtb_ps;  in ddr_compute_dimm_parameters()
322 	pdimm->trc_ps = spd_to_ps((((spd->tras_trc_ext & 0xf0) << 4) +  in ddr_compute_dimm_parameters()
323 				   spd->trc_min_lsb), spd->fine_trc_min);  in ddr_compute_dimm_parameters()
325 	pdimm->trfc1_ps = ((spd->trfc1_min_msb << 8) | (spd->trfc1_min_lsb)) *  in ddr_compute_dimm_parameters()
327 	pdimm->trfc2_ps = ((spd->trfc2_min_msb << 8) | (spd->trfc2_min_lsb)) *  in ddr_compute_dimm_parameters()
329 	pdimm->trfc4_ps = ((spd->trfc4_min_msb << 8) | (spd->trfc4_min_lsb)) *  in ddr_compute_dimm_parameters()
332 	pdimm->tfaw_ps = (((spd->tfaw_msb & 0xf) << 8) | spd->tfaw_min) *  in ddr_compute_dimm_parameters()
336 	pdimm->trrds_ps = spd_to_ps(spd->trrds_min, spd->fine_trrds_min);  in ddr_compute_dimm_parameters()
338 	pdimm->trrdl_ps = spd_to_ps(spd->trrdl_min, spd->fine_trrdl_min);  in ddr_compute_dimm_parameters()
340 	pdimm->tccdl_ps = spd_to_ps(spd->tccdl_min, spd->fine_tccdl_min);  in ddr_compute_dimm_parameters()
360 		pdimm->dq_mapping[i] = spd->mapping[i];  in ddr_compute_dimm_parameters()
362 	pdimm->dq_mapping_ors = ((spd->mapping[0] >> 6) & 0x3) == 0 ? 1 : 0;  in ddr_compute_dimm_parameters()