diff options
| author | Philip Rakity <prakity@marvell.com> | 2011-05-13 11:17:17 +0530 |
|---|---|---|
| committer | Chris Ball <cjb@laptop.org> | 2011-05-24 23:53:58 -0400 |
| commit | 261bbd463a091b939770255d559bbc89b1bad568 (patch) | |
| tree | 3d28f9b3d2da6677e6564c752bd15bd8d97a4db9 /drivers/mmc/core/core.c | |
| parent | 756515c6267a580aecc67d114bb289dd30a466a1 (diff) | |
mmc: core: eMMC signal voltage does not use CMD11
eMMC chips do not use CMD11 when changing voltage. Add extra
argument to call to indicate if CMD11 needs to be sent.
Signed-off-by: Philip Rakity <prakity@marvell.com>
Reviewed-by: Arindam Nath <arindam.nath@amd.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
Diffstat (limited to 'drivers/mmc/core/core.c')
| -rw-r--r-- | drivers/mmc/core/core.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/mmc/core/core.c b/drivers/mmc/core/core.c index 72e113e7f253..94c8d5a9ecae 100644 --- a/drivers/mmc/core/core.c +++ b/drivers/mmc/core/core.c @@ -942,7 +942,7 @@ u32 mmc_select_voltage(struct mmc_host *host, u32 ocr) return ocr; } -int mmc_set_signal_voltage(struct mmc_host *host, int signal_voltage) +int mmc_set_signal_voltage(struct mmc_host *host, int signal_voltage, bool cmd11) { struct mmc_command cmd = {0}; int err = 0; @@ -953,7 +953,7 @@ int mmc_set_signal_voltage(struct mmc_host *host, int signal_voltage) * Send CMD11 only if the request is to switch the card to * 1.8V signalling. */ - if (signal_voltage == MMC_SIGNAL_VOLTAGE_180) { + if ((signal_voltage != MMC_SIGNAL_VOLTAGE_330) && cmd11) { cmd.opcode = SD_SWITCH_VOLTAGE; cmd.arg = 0; cmd.flags = MMC_RSP_R1 | MMC_CMD_AC; |