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First part of FS#9570 by Antonius Hellmann. Disables power to the SD memory when not in use. Gives a sizeable power savings (4 mA by his measurement).

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@19194 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Michael Giacomelli 2008-11-24 03:59:21 +00:00
parent 4c3a19f1b4
commit 5d21c8cb1d
1 changed files with 4 additions and 2 deletions
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6
firmware/target/arm/ata-sd-pp.c
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@ -758,7 +758,7 @@ int sd_read_sectors(IF_MV2(int drive,) unsigned long start, int incount,
/* TODO: Add DMA support. */ /* TODO: Add DMA support. */
mutex_lock(&sd_mtx); mutex_lock(&sd_mtx);
sd_enable(true);
sd_led(true); sd_led(true);
sd_read_retry: sd_read_retry:
@ -844,6 +844,7 @@ sd_read_retry:
while (1) while (1)
{ {
sd_led(false); sd_led(false);
sd_enable(false);
mutex_unlock(&sd_mtx); mutex_unlock(&sd_mtx);
return ret; return ret;
@ -873,7 +874,7 @@ int sd_write_sectors(IF_MV2(int drive,) unsigned long start, int count,
int bank; int bank;
mutex_lock(&sd_mtx); mutex_lock(&sd_mtx);
sd_enable(true);
sd_led(true); sd_led(true);
sd_write_retry: sd_write_retry:
@ -972,6 +973,7 @@ sd_write_retry:
while (1) while (1)
{ {
sd_led(false); sd_led(false);
sd_enable(false);
mutex_unlock(&sd_mtx); mutex_unlock(&sd_mtx);
return ret; return ret;