[flashrom] [commit] r1748 - trunk
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svn at flashrom.org
Sun Sep 15 01:37:02 CEST 2013
Author: stefanct
Date: Sun Sep 15 01:37:01 2013
New Revision: 1748
URL: http://flashrom.org/trac/flashrom/changeset/1748
Log:
Enable fwh_idsel parameter for C-ICH and ICH2/3/4/5 chipsets.
Register locations are different from ICH6, but otherwise appear
to have identical bit specifications and defaults.
Signed-off-by: Kyösti Mälkki <kyosti.malkki at gmail.com>
Acked-by: Stefan Tauner <stefan.tauner at student.tuwien.ac.at>
Modified:
trunk/chipset_enable.c
trunk/flashrom.8.tmpl
Modified: trunk/chipset_enable.c
==============================================================================
--- trunk/chipset_enable.c Sun Sep 15 01:36:57 2013 (r1747)
+++ trunk/chipset_enable.c Sun Sep 15 01:37:01 2013 (r1748)
@@ -323,7 +323,7 @@
return enable_flash_ich(dev, name, 0x4e);
}
-static int enable_flash_ich_fwh_decode(struct pci_dev *dev, const char *name)
+static int enable_flash_ich_fwh_decode(struct pci_dev *dev, const char *name, enum ich_chipset ich_generation)
{
uint32_t fwh_conf;
uint8_t fwh_sel1, fwh_sel2, fwh_dec_en_lo, fwh_dec_en_hi;
@@ -332,11 +332,20 @@
int max_decode_fwh_idsel = 0, max_decode_fwh_decode = 0;
int contiguous = 1;
- /* Register map from ICH6 onwards. */
- fwh_sel1 = 0xd0;
- fwh_sel2 = 0xd4;
- fwh_dec_en_lo = 0xd8;
- fwh_dec_en_hi = 0xd9;
+ if (ich_generation >= CHIPSET_ICH6) {
+ fwh_sel1 = 0xd0;
+ fwh_sel2 = 0xd4;
+ fwh_dec_en_lo = 0xd8;
+ fwh_dec_en_hi = 0xd9;
+ } else if (ich_generation >= CHIPSET_ICH2) {
+ fwh_sel1 = 0xe8;
+ fwh_sel2 = 0xee;
+ fwh_dec_en_lo = 0xf0;
+ fwh_dec_en_hi = 0xe3;
+ } else {
+ msg_perr("Error: FWH decode setting not implemented.\n");
+ return ERROR_FATAL;
+ }
idsel = extract_programmer_param("fwh_idsel");
if (idsel && strlen(idsel)) {
@@ -441,11 +450,12 @@
static int enable_flash_ich_4e(struct pci_dev *dev, const char *name, enum ich_chipset ich_generation)
{
- /*
- * Note: ICH5 has registers similar to FWH_SEL1, FWH_SEL2 and
- * FWH_DEC_EN1, but they are called FB_SEL1, FB_SEL2, FB_DEC_EN1 and
- * FB_DEC_EN2.
- */
+ int err;
+
+ /* Configure FWH IDSEL decoder maps. */
+ if ((err = enable_flash_ich_fwh_decode(dev, name, ich_generation)) != 0)
+ return err;
+
internal_buses_supported = BUS_FWH;
return enable_flash_ich(dev, name, 0x4e);
}
@@ -475,7 +485,7 @@
int err;
/* Configure FWH IDSEL decoder maps. */
- if ((err = enable_flash_ich_fwh_decode(dev, name)) != 0)
+ if ((err = enable_flash_ich_fwh_decode(dev, name, ich_generation)) != 0)
return err;
/* If we're called by enable_flash_ich_dc_spi, it will override
Modified: trunk/flashrom.8.tmpl
==============================================================================
--- trunk/flashrom.8.tmpl Sun Sep 15 01:36:57 2013 (r1747)
+++ trunk/flashrom.8.tmpl Sun Sep 15 01:37:01 2013 (r1748)
@@ -397,7 +397,7 @@
probably bring it into an inconsistent and unbootable state and we will not
provide any support in such a case.
.sp
-If you have an Intel chipset with an ICH6 or later southbridge and if you want
+If you have an Intel chipset with an ICH2 or later southbridge and if you want
to set specific IDSEL values for a non-default flash chip or an embedded
controller (EC), you can use the
.sp
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