[coreboot] [PATCH] flashrom: Add lock bit handling to SST FWH chips
Carl-Daniel Hailfinger
c-d.hailfinger.devel.2006 at gmx.net
Mon May 11 16:01:50 CEST 2009
On 11.05.2009 15:53, Uwe Hermann wrote:
> On Mon, May 11, 2009 at 04:56:05AM +0200, Carl-Daniel Hailfinger wrote:
>
>> Add lock bit handling (printing, setting and checking) to SST FWH chips
>> and abort any writes to locked sectors.
>> Verbose mode gives you all the info. Normal mode only tells you of
>> unlocking failed, but gives enough details to debug.
>>
>> Add a comment about flash register placement to flashrom.c.
>>
>> Thanks to Uwe for testing multiple iterations of this patch.
>>
>> Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006 at gmx.net>
>>
>
> Acked-by: Uwe Hermann <uwe at hermann-uwe.de>
>
> As noted above, I've tested this on my hardware.
>
Thanks, committed in r492.
>> +int clear_sst_fwhub_block_lock(struct flashchip *flash, int offset)
>> +{
>> + volatile uint8_t *registers = flash->virtual_registers;
>> + uint8_t blockstatus;
>> +
>> + blockstatus = check_sst_fwhub_block_lock(flash, offset);
>> +
>> + if (blockstatus) {
>> + printf_debug("Trying to clear lock for 0x%06x... ", offset)
>> + chip_writeb(0, registers + offset + 2);
>> +
>> + blockstatus = check_sst_fwhub_block_lock(flash, offset);
>> + if (blockstatus) {
>> + printf_debug("failed\n");
>> + } else {
>> + printf_debug("OK\n");
>> + }
>>
>
> I find this nicer for short and simple if's like this one:
>
> printf_debug("%s\n", (blockstatus) ? "failed" : "OK");
>
> Either is fine though, if you prefer the 5-line version.
>
Ah yes, that was a remainder from earlier versions of the patch. Thanks
for noticing. I changed it.
Regards,
Carl-Daniel
--
http://www.hailfinger.org/
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