Hi Thomas,
On 03.11.2015 01:23, Thomas Chou wrote:
#ifdef CONFIG_SYS_FLASH_PROTECTION
/* read environment from EEPROM */
@@ -2322,6 +2337,14 @@ unsigned long flash_init (void)
getenv_f("unlock", s, sizeof(s));
#endif
+#ifdef CONFIG_CFI_FLASH /* for driver model */
+ cfi_flash_num_flash_banks = 0;
+ /* probe every MTD device */
+ for (uclass_first_device(UCLASS_MTD, &dev);
+ dev;
+ uclass_next_device(&dev)) {
+ }
+#endif
What is this loop above exactly doing?
I want to get the cfi-flash device probed and flash_info[] got
initialized. So I look in every mtd uclass device.
I will use CONFIG_IS_ENABLED to remove the warning above.
Thats good, thanks.
if (CONFIG_IS_ENABLED(CFI_FLASH)) {
struct udevice *dev;
cfi_flash_num_flash_banks = 0;
/* probe every MTD device to find cfi-flash device */
for (uclass_first_device(UCLASS_MTD, &dev);
dev;
uclass_next_device(&dev)) {
}
}
I'm still not an expert in the DM internals. I fail to see, where
the actual probing is happening in the loop. Is it buried in the
uclass_first_device() call?
Thanks,
Stefan
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