[PATCH v4 15/15] mci: sdhci: replace sdhci_wait_idle

[Steffen Trumtrar <s.trumtrar@pengutronix.de>]

Linux uses a different sdhci_wait_idle function than what barebox
currently does. For HS200 support, the linux version needs to be used.
As currently only arasan-sdhci is tested with HS200, keep the old
sdhci_wait_idle as sdhci_wait_idle_data and convert all users of it.

Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Signed-off-by: Steffen Trumtrar <s.trumtrar@pengutronix.de>
---
 drivers/mci/am654-sdhci.c            |  2 +-
 drivers/mci/arasan-sdhci.c           |  2 +-
 drivers/mci/atmel-sdhci-common.c     |  4 ++--
 drivers/mci/dove-sdhci.c             |  2 +-
 drivers/mci/mci-bcm2835.c            |  2 +-
 drivers/mci/rockchip-dwcmshc-sdhci.c |  2 +-
 drivers/mci/sdhci.c                  | 29 +++++++++++++++++++++++++++--
 drivers/mci/sdhci.h                  |  3 ++-
 8 files changed, 36 insertions(+), 10 deletions(-)

diff --git a/drivers/mci/am654-sdhci.c b/drivers/mci/am654-sdhci.c
index 1d94834c1a..391b65591c 100644
--- a/drivers/mci/am654-sdhci.c
+++ b/drivers/mci/am654-sdhci.c
@@ -471,7 +471,7 @@ static int am654_sdhci_send_cmd(struct mci_host *mci, struct mci_cmd *cmd,
 	int ret;
 	dma_addr_t dma;
 
-	ret = sdhci_wait_idle(&host->sdhci, cmd);
+	ret = sdhci_wait_idle_data(&host->sdhci, cmd);
 	if (ret)
 		return ret;
 
diff --git a/drivers/mci/arasan-sdhci.c b/drivers/mci/arasan-sdhci.c
index c8b5a84060..f01396d7ee 100644
--- a/drivers/mci/arasan-sdhci.c
+++ b/drivers/mci/arasan-sdhci.c
@@ -251,7 +251,7 @@ static int arasan_sdhci_send_cmd(struct mci_host *mci, struct mci_cmd *cmd,
 	dma_addr_t dma;
 	int ret;
 
-	ret = sdhci_wait_idle(&host->sdhci, cmd);
+	ret = sdhci_wait_idle(&host->sdhci, cmd, data);
 	if (ret)
 		return ret;
 
diff --git a/drivers/mci/atmel-sdhci-common.c b/drivers/mci/atmel-sdhci-common.c
index a69d6b67b5..082ce842f7 100644
--- a/drivers/mci/atmel-sdhci-common.c
+++ b/drivers/mci/atmel-sdhci-common.c
@@ -98,7 +98,7 @@ int at91_sdhci_send_command(struct at91_sdhci *host, struct mci_cmd *cmd,
 	int status;
 	int ret;
 
-	ret = sdhci_wait_idle(&host->sdhci, cmd);
+	ret = sdhci_wait_idle_data(&host->sdhci, cmd);
 	if (ret)
 		return ret;
 
@@ -188,7 +188,7 @@ static int at91_sdhci_set_clock(struct at91_sdhci *host, unsigned clock)
 	u32 caps, caps_clk_mult;
 	int ret;
 
-	ret = sdhci_wait_idle(&host->sdhci, NULL);
+	ret = sdhci_wait_idle_data(&host->sdhci, NULL);
 	if (ret)
 		return ret;
 
diff --git a/drivers/mci/dove-sdhci.c b/drivers/mci/dove-sdhci.c
index 8a4c4a11b4..d37046ad31 100644
--- a/drivers/mci/dove-sdhci.c
+++ b/drivers/mci/dove-sdhci.c
@@ -62,7 +62,7 @@ static int dove_sdhci_mci_send_cmd(struct mci_host *mci, struct mci_cmd *cmd,
 	unsigned int num_bytes = 0;
 	struct dove_sdhci *host = priv_from_mci_host(mci);
 
-	ret = sdhci_wait_idle(&host->sdhci, cmd);
+	ret = sdhci_wait_idle_data(&host->sdhci, cmd);
 	if (ret)
 		return ret;
 
diff --git a/drivers/mci/mci-bcm2835.c b/drivers/mci/mci-bcm2835.c
index 35cf0c4241..3546cc3a32 100644
--- a/drivers/mci/mci-bcm2835.c
+++ b/drivers/mci/mci-bcm2835.c
@@ -128,7 +128,7 @@ static int bcm2835_mci_request(struct mci_host *mci, struct mci_cmd *cmd,
 		block_data |= data->blocksize;
 	}
 
-	ret = sdhci_wait_idle(&host->sdhci, cmd);
+	ret = sdhci_wait_idle_data(&host->sdhci, cmd);
 	if (ret)
 		return ret;
 
diff --git a/drivers/mci/rockchip-dwcmshc-sdhci.c b/drivers/mci/rockchip-dwcmshc-sdhci.c
index 03f463a3f6..f503dbae65 100644
--- a/drivers/mci/rockchip-dwcmshc-sdhci.c
+++ b/drivers/mci/rockchip-dwcmshc-sdhci.c
@@ -249,7 +249,7 @@ static int rk_sdhci_send_cmd(struct mci_host *mci, struct mci_cmd *cmd,
 	int ret;
 	dma_addr_t dma;
 
-	ret = sdhci_wait_idle(&host->sdhci, cmd);
+	ret = sdhci_wait_idle_data(&host->sdhci, cmd);
 	if (ret)
 		return ret;
 
diff --git a/drivers/mci/sdhci.c b/drivers/mci/sdhci.c
index 7dedd5a7b2..8bba1e3bf9 100644
--- a/drivers/mci/sdhci.c
+++ b/drivers/mci/sdhci.c
@@ -788,7 +788,32 @@ void sdhci_enable_clk(struct sdhci *host, u16 clk)
 	sdhci_write16(host, SDHCI_CLOCK_CONTROL, clk);
 }
 
-int sdhci_wait_idle(struct sdhci *host, struct mci_cmd *cmd)
+int sdhci_wait_idle(struct sdhci *host, struct mci_cmd *cmd, struct mci_data *data)
+{
+	u32 mask;
+	int ret;
+
+	mask = SDHCI_CMD_INHIBIT_CMD;
+
+	if (data || (cmd && (cmd->resp_type & MMC_RSP_BUSY)))
+		mask |= SDHCI_CMD_INHIBIT_DATA;
+
+	if (cmd && cmd->cmdidx == MMC_CMD_STOP_TRANSMISSION)
+		mask &= ~SDHCI_CMD_INHIBIT_DATA;
+
+	ret = wait_on_timeout(10 * MSECOND,
+			!(sdhci_read32(host, SDHCI_PRESENT_STATE) & mask));
+
+	if (ret) {
+		dev_err(host->mci->hw_dev,
+				"SDHCI timeout while waiting for idle\n");
+		return -EBUSY;
+	}
+
+	return 0;
+}
+
+int sdhci_wait_idle_data(struct sdhci *host, struct mci_cmd *cmd)
 {
 	u32 mask;
 	int ret;
@@ -820,7 +845,7 @@ void sdhci_set_clock(struct sdhci *host, unsigned int clock, unsigned int input_
 
 	sdhci_set_uhs_signaling(host, host->mci->timing);
 
-	sdhci_wait_idle(host, NULL);
+	sdhci_wait_idle_data(host, NULL);
 
 	sdhci_write16(host, SDHCI_CLOCK_CONTROL, 0);
 
diff --git a/drivers/mci/sdhci.h b/drivers/mci/sdhci.h
index f10a801c88..15ce2b92b6 100644
--- a/drivers/mci/sdhci.h
+++ b/drivers/mci/sdhci.h
@@ -309,7 +309,8 @@ static inline void sdhci_write8(struct sdhci *host, int reg, u32 val)
 
 #define SDHCI_NO_DMA DMA_ERROR_CODE
 int sdhci_execute_tuning(struct sdhci *sdhci, u32 opcode);
-int sdhci_wait_idle(struct sdhci *host, struct mci_cmd *cmd);
+int sdhci_wait_idle_data(struct sdhci *host, struct mci_cmd *cmd);
+int sdhci_wait_idle(struct sdhci *host, struct mci_cmd *cmd, struct mci_data *data);
 int sdhci_wait_for_done(struct sdhci *host, u32 mask);
 void sdhci_read_response(struct sdhci *host, struct mci_cmd *cmd);
 void sdhci_set_cmd_xfer_mode(struct sdhci *host, struct mci_cmd *cmd,

-- 
2.43.2