Signed-off-by: Sascha Hauer <s.hauer@xxxxxxxxxxxxxx>
---
drivers/mci/Kconfig | 5 +++++
drivers/mci/mci-core.c | 6 ++++++
2 files changed, 11 insertions(+), 0 deletions(-)
diff --git a/drivers/mci/Kconfig b/drivers/mci/Kconfig
index 9cb7eb6..cfed72f 100644
--- a/drivers/mci/Kconfig
+++ b/drivers/mci/Kconfig
@@ -25,6 +25,11 @@ config MCI_INFO
This entry adds more info about the attached MCI card, when the
'devinfo' command is used on the mci device.
+config MCI_WRITE
+ bool "Support writing to MCI cards"
+ default y
+ select ATA_WRITE
+
comment "--- MCI host drivers ---"
config MCI_MXS
diff --git a/drivers/mci/mci-core.c b/drivers/mci/mci-core.c
index 8fd948c..4752b3d 100644
--- a/drivers/mci/mci-core.c
+++ b/drivers/mci/mci-core.c
@@ -106,6 +106,7 @@ static void *sector_buf;
* @param blocknum Block number to write
* @return Transaction status (0 on success)
*/
+#ifdef CONFIG_MCI_WRITE
static int mci_block_write(struct device_d *mci_dev, const void *src, unsigned blocknum)
{
struct mci *mci = GET_MCI_DATA(mci_dev);
@@ -132,6 +133,7 @@ static int mci_block_write(struct device_d *mci_dev, const void *src, unsigned b
return mci_send_cmd(mci_dev, &cmd, &data);
}
+#endif
/**
* Read one block of data from the card
@@ -944,6 +946,7 @@ static int sd_send_if_cond(struct device_d *mci_dev)
*
* This routine expects the buffer has the correct size to read all data!
*/
+#ifdef CONFIG_MCI_WRITE
static int mci_sd_write(struct device_d *disk_dev, uint64_t sector_start,
unsigned sector_count, const void *buffer)
{
@@ -980,6 +983,7 @@ static int mci_sd_write(struct device_d *disk_dev, uint64_t sector_start,
return 0;
}
+#endif
/**
* Read a chunk of sectors from media
@@ -1218,7 +1222,9 @@ static int mci_card_probe(struct device_d *mci_dev)
disk_dev = xzalloc(sizeof(struct device_d) + sizeof(struct ata_interface));
p = (struct ata_interface*)&disk_dev[1];
+#ifdef CONFIG_MCI_WRITE
p->write = mci_sd_write;
+#endif
p->read = mci_sd_read;
p->priv = mci_dev;
--
1.7.2.3
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