[U-Boot,3/3] mmc: fsl_esdhc: drop i.MX DDR support code
diff mbox series

Message ID 20191021100909.3708-4-yangbo.lu@nxp.com
State Accepted
Commit 5d336d1701567e5025c3010b325e633a677c30a2
Delegated to: Peng Fan
Headers show
Series
  • mmc: fsl_esdhc: clean up driver
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Commit Message

Yangbo Lu Oct. 21, 2019, 10:09 a.m. UTC
A previous patch below adding DDR mode support was actually for i.MX
platforms. Now i.MX eSDHC driver is fsl_esdhc_imx.c. For QorIQ eSDHC,
it uses different process for DDR mode, and hasn't been supported.
Let's drop DDR support code for i.MX in fsl_esdhc driver.

0e1bf61 mmc: fsl_esdhc: Add support for DDR mode

Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
---
 drivers/mmc/fsl_esdhc.c | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)

Patch
diff mbox series

diff --git a/drivers/mmc/fsl_esdhc.c b/drivers/mmc/fsl_esdhc.c
index 03c54c3..cd357ea 100644
--- a/drivers/mmc/fsl_esdhc.c
+++ b/drivers/mmc/fsl_esdhc.c
@@ -501,7 +501,6 @@  static void set_sysctl(struct fsl_esdhc_priv *priv, struct mmc *mmc, uint clock)
 	struct fsl_esdhc *regs = priv->esdhc_regs;
 	int div = 1;
 	int pre_div = 2;
-	int ddr_pre_div = mmc->ddr_mode ? 2 : 1;
 	unsigned int sdhc_clk = priv->sdhc_clk;
 	u32 time_out;
 	u32 value;
@@ -510,10 +509,10 @@  static void set_sysctl(struct fsl_esdhc_priv *priv, struct mmc *mmc, uint clock)
 	if (clock < mmc->cfg->f_min)
 		clock = mmc->cfg->f_min;
 
-	while (sdhc_clk / (16 * pre_div * ddr_pre_div) > clock && pre_div < 256)
+	while (sdhc_clk / (16 * pre_div) > clock && pre_div < 256)
 		pre_div *= 2;
 
-	while (sdhc_clk / (div * pre_div * ddr_pre_div) > clock && div < 16)
+	while (sdhc_clk / (div * pre_div) > clock && div < 16)
 		div++;
 
 	pre_div >>= 1;
@@ -773,9 +772,6 @@  static int fsl_esdhc_init(struct fsl_esdhc_priv *priv,
 		cfg->host_caps = MMC_MODE_4BIT;
 
 	cfg->host_caps = MMC_MODE_4BIT | MMC_MODE_8BIT;
-#ifdef CONFIG_SYS_FSL_ESDHC_HAS_DDR_MODE
-	cfg->host_caps |= MMC_MODE_DDR_52MHz;
-#endif
 
 	if (priv->bus_width > 0) {
 		if (priv->bus_width < 8)