[flashrom] [PATCH] revamp the warning of failing to set BIOS write enable in enable_flash_ich
Stefan Tauner
stefan.tauner at student.tuwien.ac.at
Mon Jun 20 14:41:44 CEST 2011
- introduce a new variable 'wanted' that is used instead of 'new'
- use 'new' for the actual value contained in BIOS_CNTL after we tried to write it
- rephrase the warning which now also includes the old and new values besides the wanted one
Signed-off-by: Stefan Tauner <stefan.tauner at student.tuwien.ac.at>
---
chipset_enable.c | 14 ++++++++------
1 files changed, 8 insertions(+), 6 deletions(-)
diff --git a/chipset_enable.c b/chipset_enable.c
index 0c77f07..c36da4f 100644
--- a/chipset_enable.c
+++ b/chipset_enable.c
@@ -250,7 +250,7 @@ static int enable_flash_piix4(struct pci_dev *dev, const char *name)
static int enable_flash_ich(struct pci_dev *dev, const char *name,
int bios_cntl)
{
- uint8_t old, new;
+ uint8_t old, new, wanted;
/*
* Note: the ICH0-ICH5 BIOS_CNTL register is actually 16 bit wide, but
@@ -274,14 +274,16 @@ static int enable_flash_ich(struct pci_dev *dev, const char *name,
msg_pinfo("WARNING: BIOS region SMM protection is enabled!\n");
}
- new = old | 1;
- if (new == old)
+ wanted = old | 1;
+ if (wanted == old)
return 0;
- rpci_write_byte(dev, bios_cntl, new);
+ rpci_write_byte(dev, bios_cntl, wanted);
- if (pci_read_byte(dev, bios_cntl) != new) {
- msg_pinfo("tried to set 0x%x to 0x%x on %s failed (WARNING ONLY)\n", bios_cntl, new, name);
+ if ((new = pci_read_byte(dev, bios_cntl)) != wanted) {
+ msg_pinfo("WARNING: Setting 0x%x from 0x%x to 0x%x on %s "
+ "failed. New value is 0x%x.\n",
+ bios_cntl, old, wanted, name, new);
return -1;
}
--
1.7.1
More information about the flashrom
mailing list