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Simple PCIe FMC carrier SPEC - Software
Commit 1250929c authored by Alessandro Rubini's avatar Alessandro Rubini
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kernel/spec-i2c: only 'scan' for our address 

Signed-off-by: Alessandro Rubini's avatarAlessandro Rubini <rubini@gnudd.com>
parent 5739ab6b
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Showing with 11 additions and 7 deletions
kernel/spec-i2c.c
View file @ 1250929c
...@@ -131,13 +131,17 @@ void mi2c_init(struct fmc_device *fmc) ...@@ -131,13 +131,17 @@ void mi2c_init(struct fmc_device *fmc)
int mi2c_scan(struct fmc_device *fmc) int mi2c_scan(struct fmc_device *fmc)
{ {
int i, found = 0; int found = 0;
for(i = 0; i < 256; i += 2) {
mi2c_start(fmc); /* ensure the bus is reset */
if(!mi2c_put_byte(fmc, i)) mi2c_start(fmc);
found++; mi2c_stop(fmc);
mi2c_stop(fmc);
} /* only look for our own device */
mi2c_start(fmc);
if(mi2c_put_byte(fmc, fmc->eeprom_addr << 1) == 0)
found++;
mi2c_stop(fmc);
return found; return found;
} }
......
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