altos: Move common storage code to ao_storage.c. Add M25P80 driver

This reworks the storage API so that you erase blocks and then store
data to them so that the M25P80 driver will work.

Signed-off-by: Keith Packard <keithp@keithp.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/src/ao_config.c b/src/ao_config.c
index 2673e472..38b72798 100644
--- a/src/ao_config.c
+++ b/src/ao_config.c
@@ -33,7 +33,9 @@ static void
 _ao_config_put(void)
 {
 	ao_storage_setup();
+	ao_storage_erase(ao_storage_config);
 	ao_storage_write(ao_storage_config, &ao_config, sizeof (ao_config));
+	ao_log_write_erase(0);
 	ao_storage_flush();
 }