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mmc: fsl_esdhc: drop i.MX DDR support code

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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>
This commit is contained in:
Yangbo Lu 2019-10-21 18:09:09 +08:00 • committed by Peng Fan
parent 2913926f3b
commit 5d336d1701
1 changed files with 2 additions and 6 deletions
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8
drivers/mmc/fsl_esdhc.c
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@ -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)