@@ -229,7 +229,6 @@ static void dw_mci_init_debugfs(struct dw_mci_slot *slot)
}
#endif /* defined(CONFIG_DEBUG_FS) */
-static void mci_send_cmd(struct dw_mci_slot *slot, u32 cmd, u32 arg);
static bool dw_mci_ctrl_reset(struct dw_mci *host, u32 reset)
{
u32 ctrl;
@@ -251,6 +250,46 @@ static bool dw_mci_ctrl_reset(struct dw_mci *host, u32 reset)
return true;
}
+static void dw_mci_wait_while_busy(struct dw_mci *host, u32 cmd_flags)
+{
+ u32 status;
+
+ /*
+ * Databook says that before issuing a new data transfer command
+ * we need to check to see if the card is busy. Data transfer commands
+ * all have SDMMC_CMD_PRV_DAT_WAIT set, so we'll key off that.
+ *
+ * ...also allow sending for SDMMC_CMD_VOLT_SWITCH where busy is
+ * expected.
+ */
+ if ((cmd_flags & SDMMC_CMD_PRV_DAT_WAIT) &&
+ !(cmd_flags & SDMMC_CMD_VOLT_SWITCH)) {
+ if (readl_poll_timeout_atomic(host->regs + SDMMC_STATUS,
+ status,
+ !(status & SDMMC_STATUS_BUSY),
+ 10, 500 * USEC_PER_MSEC))
+ dev_err(host->dev, "Busy; trying anyway\n");
+ }
+}
+
+static void mci_send_cmd(struct dw_mci_slot *slot, u32 cmd, u32 arg)
+{
+ struct dw_mci *host = slot->host;
+ unsigned int cmd_status = 0;
+
+ mci_writel(host, CMDARG, arg);
+ wmb(); /* drain writebuffer */
+ dw_mci_wait_while_busy(host, cmd);
+ mci_writel(host, CMD, SDMMC_CMD_START | cmd);
+
+ if (readl_poll_timeout_atomic(host->regs + SDMMC_CMD, cmd_status,
+ !(cmd_status & SDMMC_CMD_START),
+ 1, 500 * USEC_PER_MSEC))
+ dev_err(&slot->mmc->class_dev,
+ "Timeout sending command (cmd %#x arg %#x status %#x)\n",
+ cmd, arg, cmd_status);
+}
+
static u32 dw_mci_prepare_command(struct mmc_host *mmc, struct mmc_command *cmd)
{
struct dw_mci_slot *slot = mmc_priv(mmc);
@@ -358,28 +397,6 @@ static u32 dw_mci_prep_stop_abort(struct dw_mci *host, struct mmc_command *cmd)
return cmdr;
}
-static void dw_mci_wait_while_busy(struct dw_mci *host, u32 cmd_flags)
-{
- u32 status;
-
- /*
- * Databook says that before issuing a new data transfer command
- * we need to check to see if the card is busy. Data transfer commands
- * all have SDMMC_CMD_PRV_DAT_WAIT set, so we'll key off that.
- *
- * ...also allow sending for SDMMC_CMD_VOLT_SWITCH where busy is
- * expected.
- */
- if ((cmd_flags & SDMMC_CMD_PRV_DAT_WAIT) &&
- !(cmd_flags & SDMMC_CMD_VOLT_SWITCH)) {
- if (readl_poll_timeout_atomic(host->regs + SDMMC_STATUS,
- status,
- !(status & SDMMC_STATUS_BUSY),
- 10, 500 * USEC_PER_MSEC))
- dev_err(host->dev, "Busy; trying anyway\n");
- }
-}
-
static void dw_mci_start_command(struct dw_mci *host,
struct mmc_command *cmd, u32 cmd_flags)
{
@@ -1184,24 +1201,6 @@ static void dw_mci_submit_data(struct dw_mci *host, struct mmc_data *data)
}
}
-static void mci_send_cmd(struct dw_mci_slot *slot, u32 cmd, u32 arg)
-{
- struct dw_mci *host = slot->host;
- unsigned int cmd_status = 0;
-
- mci_writel(host, CMDARG, arg);
- wmb(); /* drain writebuffer */
- dw_mci_wait_while_busy(host, cmd);
- mci_writel(host, CMD, SDMMC_CMD_START | cmd);
-
- if (readl_poll_timeout_atomic(host->regs + SDMMC_CMD, cmd_status,
- !(cmd_status & SDMMC_CMD_START),
- 1, 500 * USEC_PER_MSEC))
- dev_err(&slot->mmc->class_dev,
- "Timeout sending command (cmd %#x arg %#x status %#x)\n",
- cmd, arg, cmd_status);
-}
-
static void dw_mci_setup_bus(struct dw_mci_slot *slot, bool force_clkinit)
{
struct dw_mci *host = slot->host;
No functional change intended. Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com> --- drivers/mmc/host/dw_mmc.c | 81 +++++++++++++++++++++++------------------------ 1 file changed, 40 insertions(+), 41 deletions(-)