From 60dead4aee579f9da86549ce33d7de29de4e043b Mon Sep 17 00:00:00 2001 From: Tai-Hong Wu Date: Mon, 5 Jan 2015 23:00:14 +0000 Subject: 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. Corresponding to flashrom svn r1861. Signed-off-by: Tai-Hong Wu Signed-off-by: Stefan Tauner Acked-by: Stefan Tauner --- ich_descriptors.c | 38 +++++++++++++++++++------------------- ich_descriptors.h | 18 +++++++----------- 2 files changed, 26 insertions(+), 30 deletions(-) diff --git a/ich_descriptors.c b/ich_descriptors.c index 1966f66b..90f70eeb 100644 --- a/ich_descriptors.c +++ b/ich_descriptors.c @@ -127,27 +127,27 @@ static const char *pprint_density(enum ich_chipset cs, const struct ich_descript 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 @@ void prettyprint_ich_descriptor_component(enum ich_chipset cs, const struct ich_ 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 @@ int getFCBA_component_density(enum ich_chipset cs, const struct ich_descriptors 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 @@ int getFCBA_component_density(enum ich_chipset cs, const struct ich_descriptors } 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; diff --git a/ich_descriptors.h b/ich_descriptors.h index c41f9d92..2c21598f 100644 --- a/ich_descriptors.h +++ b/ich_descriptors.h @@ -123,23 +123,19 @@ struct ich_desc_component { 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 */ -- cgit v1.2.3