[PATCH] mmc: atmel-mci: save and restore sdioirq when soft reset is performed
ludovic.desroches at atmel.com
ludovic.desroches at atmel.com
Wed Feb 8 12:22:39 EST 2012
From: Ludovic Desroches <ludovic.desroches at atmel.com>
Signed-off-by: Ludovic Desroches <ludovic.desroches at atmel.com>
Cc: stable at vger.kernel.org
---
drivers/mmc/host/atmel-mci.c | 3 +++
1 files changed, 3 insertions(+), 0 deletions(-)
diff --git a/drivers/mmc/host/atmel-mci.c b/drivers/mmc/host/atmel-mci.c
index 09ac13b..dfa5dd9 100644
--- a/drivers/mmc/host/atmel-mci.c
+++ b/drivers/mmc/host/atmel-mci.c
@@ -965,11 +965,14 @@ static void atmci_start_request(struct atmel_mci *host,
host->data_status = 0;
if (host->need_reset) {
+ iflags = atmci_readl(host, ATMCI_IMR);
+ iflags &= (ATMCI_SDIOIRQA | ATMCI_SDIOIRQB);
atmci_writel(host, ATMCI_CR, ATMCI_CR_SWRST);
atmci_writel(host, ATMCI_CR, ATMCI_CR_MCIEN);
atmci_writel(host, ATMCI_MR, host->mode_reg);
if (host->caps.has_cfg_reg)
atmci_writel(host, ATMCI_CFG, host->cfg_reg);
+ atmci_writel(host, ATMCI_IER, iflags);
host->need_reset = false;
}
atmci_writel(host, ATMCI_SDCR, slot->sdc_reg);
--
1.7.5.4
More information about the linux-arm-kernel
mailing list