Author: stefanct Date: Tue Jan 6 00:00:14 2015 New Revision: 1861 URL: http://flashrom.org/trac/flashrom/changeset/1861
Log: Fix wrong density encoding on Intel Silvermont. Silvermont (Bay Trail, Rangeley, Avoton) seems to still use the old density encoding with 3 bits per chip. Documentation is unavailable (held concealed by Intel) but thanks to the efforts of Tai-Hong (Type) Wu the layout is clear now. This patch is based on his one but solves the issue differently thus reducing the code complexity. Signed-off-by: Tai-Hong Wu <[email protected]> Signed-off-by: Stefan Tauner <[email protected]> Acked-by: Stefan Tauner <[email protected]> Modified: trunk/ich_descriptors.c trunk/ich_descriptors.h Modified: trunk/ich_descriptors.c ============================================================================== --- trunk/ich_descriptors.c Sat Dec 20 21:25:19 2014 (r1860) +++ trunk/ich_descriptors.c Tue Jan 6 00:00:14 2015 (r1861) @@ -127,27 +127,27 @@ case CHIPSET_ICH10: case CHIPSET_5_SERIES_IBEX_PEAK: case CHIPSET_6_SERIES_COUGAR_POINT: - case CHIPSET_7_SERIES_PANTHER_POINT: { + case CHIPSET_7_SERIES_PANTHER_POINT: + case CHIPSET_BAYTRAIL: { uint8_t size_enc; if (idx == 0) { - size_enc = desc->component.old.comp1_density; + size_enc = desc->component.dens_old.comp1_density; } else { - size_enc = desc->component.old.comp2_density; + size_enc = desc->component.dens_old.comp2_density; } if (size_enc > 5) return "reserved"; return size_str[size_enc]; } case CHIPSET_8_SERIES_LYNX_POINT: - case CHIPSET_BAYTRAIL: case CHIPSET_8_SERIES_LYNX_POINT_LP: case CHIPSET_8_SERIES_WELLSBURG: case CHIPSET_9_SERIES_WILDCAT_POINT: { uint8_t size_enc; if (idx == 0) { - size_enc = desc->component.new.comp1_density; + size_enc = desc->component.dens_new.comp1_density; } else { - size_enc = desc->component.new.comp2_density; + size_enc = desc->component.dens_new.comp2_density; } if (size_enc > 7) return "reserved"; @@ -207,16 +207,16 @@ msg_pdbg2("Component 2 density: %s\n", pprint_density(cs, desc, 1)); else msg_pdbg2("Component 2 is not used.\n"); - msg_pdbg2("Read Clock Frequency: %s\n", pprint_freq(cs, desc->component.common.freq_read)); - msg_pdbg2("Read ID and Status Clock Freq.: %s\n", pprint_freq(cs, desc->component.common.freq_read_id)); - msg_pdbg2("Write and Erase Clock Freq.: %s\n", pprint_freq(cs, desc->component.common.freq_write)); - msg_pdbg2("Fast Read is %ssupported.\n", desc->component.common.fastread ? "" : "not "); - if (desc->component.common.fastread) + msg_pdbg2("Read Clock Frequency: %s\n", pprint_freq(cs, desc->component.modes.freq_read)); + msg_pdbg2("Read ID and Status Clock Freq.: %s\n", pprint_freq(cs, desc->component.modes.freq_read_id)); + msg_pdbg2("Write and Erase Clock Freq.: %s\n", pprint_freq(cs, desc->component.modes.freq_write)); + msg_pdbg2("Fast Read is %ssupported.\n", desc->component.modes.fastread ? "" : "not "); + if (desc->component.modes.fastread) msg_pdbg2("Fast Read Clock Frequency: %s\n", - pprint_freq(cs, desc->component.common.freq_fastread)); + pprint_freq(cs, desc->component.modes.freq_fastread)); if (cs > CHIPSET_6_SERIES_COUGAR_POINT) msg_pdbg2("Dual Output Fast Read Support: %sabled\n", - desc->component.new.dual_output ? "dis" : "en"); + desc->component.modes.dual_output ? "dis" : "en"); if (desc->component.FLILL == 0) msg_pdbg2("No forbidden opcodes.\n"); else { @@ -816,22 +816,22 @@ case CHIPSET_5_SERIES_IBEX_PEAK: case CHIPSET_6_SERIES_COUGAR_POINT: case CHIPSET_7_SERIES_PANTHER_POINT: + case CHIPSET_BAYTRAIL: if (idx == 0) { - size_enc = desc->component.old.comp1_density; + size_enc = desc->component.dens_old.comp1_density; } else { - size_enc = desc->component.old.comp2_density; + size_enc = desc->component.dens_old.comp2_density; } size_max = 5; break; case CHIPSET_8_SERIES_LYNX_POINT: - case CHIPSET_BAYTRAIL: case CHIPSET_8_SERIES_LYNX_POINT_LP: case CHIPSET_8_SERIES_WELLSBURG: case CHIPSET_9_SERIES_WILDCAT_POINT: if (idx == 0) { - size_enc = desc->component.new.comp1_density; + size_enc = desc->component.dens_new.comp1_density; } else { - size_enc = desc->component.new.comp2_density; + size_enc = desc->component.dens_new.comp2_density; } size_max = 7; break; @@ -842,7 +842,7 @@ } if (size_enc > size_max) { - msg_perr("Density of ICH SPI component with index %d is invalid." + msg_perr("Density of ICH SPI component with index %d is invalid.\n" "Encoded density is 0x%x while maximum allowed is 0x%x.\n", idx, size_enc, size_max); return -1; Modified: trunk/ich_descriptors.h ============================================================================== --- trunk/ich_descriptors.h Sat Dec 20 21:25:19 2014 (r1860) +++ trunk/ich_descriptors.h Tue Jan 6 00:00:14 2015 (r1861) @@ -123,23 +123,19 @@ freq_fastread :3, freq_write :3, freq_read_id :3, - :2; - } common; + dual_output :1, /* new since Cougar Point/6 */ + :1; + } modes; struct { uint32_t comp1_density :3, comp2_density :3, - :11, - :13, - :2; - } old; + :26; + } dens_old; struct { uint32_t comp1_density :4, /* new since Lynx Point/8 */ comp2_density :4, - :9, - :13, - dual_output :1, /* new since Cougar Point/6 */ - :1; - } new; + :24; + } dens_new; }; union { /* 0x04 */ uint32_t FLILL; /* Flash Invalid Instructions Register */ _______________________________________________ flashrom mailing list [email protected] http://www.flashrom.org/mailman/listinfo/flashrom
