Author: stefanct Date: Sat Aug 27 23:19:56 2011 New Revision: 1423 URL: http://flashrom.org/trac/flashrom/changeset/1423
Log: Fix printing of the Boot BIOS Straps on Intel chipsets
The meaning of the bits involved has changed several times in the past. This patch takes these changes into account and hence fixes the output of the pretty printing of GCS on all SPI-supported Intel chipsets that are not ICH7 or NM10 (the latter were unaffected, because the defaults were correct).
This patch also allows to differentiate Ibex Peak and Cougar Point chipsets from the earlier chipset series (ICH10) by adding new wrapper functions that set "ich_generation" to 11 and 12 respectively. This should not change behavior outside of enable_flash_ich_dc_spi, because the code path for ich_generation >=9 is equal.
Signed-off-by: Stefan Tauner stefan.tauner@student.tuwien.ac.at Acked-by: Uwe Hermann uwe@hermann-uwe.de --- defining all those arrays is not very elegant, but i think it is at least very readable this way. improvements are welcome! reviewers should have an eye on the codepaths for ich_generation >= 9. i did not spot a problem, but it should be checked again.
alternatively we could just remove the pretty printing of GCS and just output the bits involved. i would like to keep the pch differentiation anyway though, because i feel it will become handy in the future.
tested on my QS57-based thinkpad (probe + partial read)
Modified: trunk/chipset_enable.c
Modified: trunk/chipset_enable.c ============================================================================== --- trunk/chipset_enable.c Fri Aug 26 23:11:41 2011 (r1422) +++ trunk/chipset_enable.c Sat Aug 27 23:19:56 2011 (r1423) @@ -440,11 +440,6 @@ return 0; }
-#define ICH_STRAP_RSVD 0x00 -#define ICH_STRAP_SPI 0x01 -#define ICH_STRAP_PCI 0x02 -#define ICH_STRAP_LPC 0x03 - static int enable_flash_vt8237s_spi(struct pci_dev *dev, const char *name) { /* Do we really need no write enable? */ @@ -458,13 +453,39 @@ uint8_t bbs, buc; uint32_t tmp, gcs; void *rcrb; + const char *const *straps_names;
- /* - * TODO: These names are incorrect for EP80579. For that, the solution - * would look like the commented line below. - */ - // static const char *straps_names[] = {"SPI", "reserved", "reserved", "LPC" }; - static const char *straps_names[] = { "reserved", "SPI", "PCI", "LPC" }; + static const char *const straps_names_EP80579[] = { "SPI", "reserved", "reserved", "LPC" }; + static const char *const straps_names_ich7_nm10[] = { "reserved", "SPI", "PCI", "LPC" }; + static const char *const straps_names_ich8910[] = { "SPI", "SPI", "PCI", "LPC" }; + static const char *const straps_names_pch56[] = { "LPC", "reserved", "PCI", "SPI" }; + static const char *const straps_names_unknown[] = { "unknown", "unknown", "unknown", "unknown" }; + + switch (ich_generation) { + case 7: + /* EP80579 may need further changes, but this is the least + * intrusive way to get correct BOOT Strap printing without + * changing the rest of its code path). */ + if (strcmp(name, "EP80579") == 0) + straps_names = straps_names_EP80579; + else + straps_names = straps_names_ich7_nm10; + break; + case 8: + case 9: + case 10: + straps_names = straps_names_ich8910; + break; + case 11: + case 12: + straps_names = straps_names_pch56; + break; + default: + msg_gerr("%s: unknown ICH generation. Please report!\n", + __func__); + straps_names = straps_names_unknown; + break; + }
/* Enable Flash Writes */ ret = enable_flash_ich_dc(dev, name); @@ -481,7 +502,7 @@ msg_pdbg("BIOS Interface Lock-Down: %sabled, ", (gcs & 0x1) ? "en" : "dis"); bbs = (gcs >> 10) & 0x3; - msg_pdbg("BOOT BIOS Straps: 0x%x (%s)\n", bbs, straps_names[bbs]); + msg_pdbg("Boot BIOS Straps: 0x%x (%s)\n", bbs, straps_names[bbs]);
buc = mmio_readb(rcrb + 0x3414); msg_pdbg("Top Swap : %s\n", @@ -491,11 +512,11 @@ * time. At least not with our current code. So we prevent searching * on ICH7 when the southbridge is strapped to LPC */ - buses_supported = BUS_FWH; if (ich_generation == 7) { - if (bbs == ICH_STRAP_LPC) { - /* No further SPI initialization required */ + if (bbs == 0x03) { + /* If strapped to LPC, no further SPI initialization is + * required. */ return ret; } else { /* Disable LPC/FWH if strapped to PCI or SPI */ @@ -532,6 +553,18 @@ return enable_flash_ich_dc_spi(dev, name, 10); }
+/* Ibex Peak aka. 5 series & 3400 series */ +static int enable_flash_pch5(struct pci_dev *dev, const char *name) +{ + return enable_flash_ich_dc_spi(dev, name, 11); +} + +/* Cougar Point aka. 6 series & c200 series */ +static int enable_flash_pch6(struct pci_dev *dev, const char *name) +{ + return enable_flash_ich_dc_spi(dev, name, 12); +} + static int via_no_byte_merge(struct pci_dev *dev, const char *name) { uint8_t val; @@ -1159,21 +1192,21 @@ {0x1166, 0x0205, OK, "Broadcom", "HT-1000", enable_flash_ht1000}, {0x8086, 0x122e, OK, "Intel", "PIIX", enable_flash_piix4}, {0x8086, 0x1234, NT, "Intel", "MPIIX", enable_flash_piix4}, - {0x8086, 0x1c44, NT, "Intel", "Z68", enable_flash_ich10}, - {0x8086, 0x1c46, NT, "Intel", "P67", enable_flash_ich10}, - {0x8086, 0x1c47, NT, "Intel", "UM67", enable_flash_ich10}, - {0x8086, 0x1c49, NT, "Intel", "HM65", enable_flash_ich10}, - {0x8086, 0x1c4a, NT, "Intel", "H67", enable_flash_ich10}, - {0x8086, 0x1c4b, NT, "Intel", "HM67", enable_flash_ich10}, - {0x8086, 0x1c4c, NT, "Intel", "Q65", enable_flash_ich10}, - {0x8086, 0x1c4d, NT, "Intel", "QS67", enable_flash_ich10}, - {0x8086, 0x1c4e, NT, "Intel", "Q67", enable_flash_ich10}, - {0x8086, 0x1c4f, NT, "Intel", "QM67", enable_flash_ich10}, - {0x8086, 0x1c50, NT, "Intel", "B65", enable_flash_ich10}, - {0x8086, 0x1c52, NT, "Intel", "C202", enable_flash_ich10}, - {0x8086, 0x1c54, NT, "Intel", "C204", enable_flash_ich10}, - {0x8086, 0x1c56, NT, "Intel", "C206", enable_flash_ich10}, - {0x8086, 0x1c5c, NT, "Intel", "H61", enable_flash_ich10}, + {0x8086, 0x1c44, NT, "Intel", "Z68", enable_flash_pch6}, + {0x8086, 0x1c46, NT, "Intel", "P67", enable_flash_pch6}, + {0x8086, 0x1c47, NT, "Intel", "UM67", enable_flash_pch6}, + {0x8086, 0x1c49, NT, "Intel", "HM65", enable_flash_pch6}, + {0x8086, 0x1c4a, NT, "Intel", "H67", enable_flash_pch6}, + {0x8086, 0x1c4b, NT, "Intel", "HM67", enable_flash_pch6}, + {0x8086, 0x1c4c, NT, "Intel", "Q65", enable_flash_pch6}, + {0x8086, 0x1c4d, NT, "Intel", "QS67", enable_flash_pch6}, + {0x8086, 0x1c4e, NT, "Intel", "Q67", enable_flash_pch6}, + {0x8086, 0x1c4f, NT, "Intel", "QM67", enable_flash_pch6}, + {0x8086, 0x1c50, NT, "Intel", "B65", enable_flash_pch6}, + {0x8086, 0x1c52, NT, "Intel", "C202", enable_flash_pch6}, + {0x8086, 0x1c54, NT, "Intel", "C204", enable_flash_pch6}, + {0x8086, 0x1c56, NT, "Intel", "C206", enable_flash_pch6}, + {0x8086, 0x1c5c, NT, "Intel", "H61", enable_flash_pch6}, {0x8086, 0x2410, OK, "Intel", "ICH", enable_flash_ich_4e}, {0x8086, 0x2420, OK, "Intel", "ICH0", enable_flash_ich_4e}, {0x8086, 0x2440, OK, "Intel", "ICH2", enable_flash_ich_4e}, @@ -1212,23 +1245,23 @@ {0x8086, 0x3a18, OK, "Intel", "ICH10", enable_flash_ich10}, {0x8086, 0x3a1a, OK, "Intel", "ICH10D", enable_flash_ich10}, {0x8086, 0x3a1e, NT, "Intel", "ICH10 Engineering Sample", enable_flash_ich10}, - {0x8086, 0x3b00, NT, "Intel", "3400 Desktop", enable_flash_ich10}, - {0x8086, 0x3b01, NT, "Intel", "3400 Mobile", enable_flash_ich10}, - {0x8086, 0x3b02, NT, "Intel", "P55", enable_flash_ich10}, - {0x8086, 0x3b03, NT, "Intel", "PM55", enable_flash_ich10}, - {0x8086, 0x3b06, NT, "Intel", "H55", enable_flash_ich10}, - {0x8086, 0x3b07, OK, "Intel", "QM57", enable_flash_ich10}, - {0x8086, 0x3b08, NT, "Intel", "H57", enable_flash_ich10}, - {0x8086, 0x3b09, NT, "Intel", "HM55", enable_flash_ich10}, - {0x8086, 0x3b0a, NT, "Intel", "Q57", enable_flash_ich10}, - {0x8086, 0x3b0b, NT, "Intel", "HM57", enable_flash_ich10}, - {0x8086, 0x3b0d, NT, "Intel", "3400 Mobile SFF", enable_flash_ich10}, - {0x8086, 0x3b0e, NT, "Intel", "B55", enable_flash_ich10}, - {0x8086, 0x3b0f, OK, "Intel", "QS57", enable_flash_ich10}, - {0x8086, 0x3b12, NT, "Intel", "3400", enable_flash_ich10}, - {0x8086, 0x3b14, NT, "Intel", "3420", enable_flash_ich10}, - {0x8086, 0x3b16, NT, "Intel", "3450", enable_flash_ich10}, - {0x8086, 0x3b1e, NT, "Intel", "B55", enable_flash_ich10}, + {0x8086, 0x3b00, NT, "Intel", "3400 Desktop", enable_flash_pch5}, + {0x8086, 0x3b01, NT, "Intel", "3400 Mobile", enable_flash_pch5}, + {0x8086, 0x3b02, NT, "Intel", "P55", enable_flash_pch5}, + {0x8086, 0x3b03, NT, "Intel", "PM55", enable_flash_pch5}, + {0x8086, 0x3b06, NT, "Intel", "H55", enable_flash_pch5}, + {0x8086, 0x3b07, OK, "Intel", "QM57", enable_flash_pch5}, + {0x8086, 0x3b08, NT, "Intel", "H57", enable_flash_pch5}, + {0x8086, 0x3b09, NT, "Intel", "HM55", enable_flash_pch5}, + {0x8086, 0x3b0a, NT, "Intel", "Q57", enable_flash_pch5}, + {0x8086, 0x3b0b, NT, "Intel", "HM57", enable_flash_pch5}, + {0x8086, 0x3b0d, NT, "Intel", "3400 Mobile SFF", enable_flash_pch5}, + {0x8086, 0x3b0e, NT, "Intel", "B55", enable_flash_pch5}, + {0x8086, 0x3b0f, OK, "Intel", "QS57", enable_flash_pch5}, + {0x8086, 0x3b12, NT, "Intel", "3400", enable_flash_pch5}, + {0x8086, 0x3b14, NT, "Intel", "3420", enable_flash_pch5}, + {0x8086, 0x3b16, NT, "Intel", "3450", enable_flash_pch5}, + {0x8086, 0x3b1e, NT, "Intel", "B55", enable_flash_pch5}, {0x8086, 0x5031, OK, "Intel", "EP80579", enable_flash_ich7}, {0x8086, 0x7000, OK, "Intel", "PIIX3", enable_flash_piix4}, {0x8086, 0x7110, OK, "Intel", "PIIX4/4E/4M", enable_flash_piix4},