From: Srinivas Kandagatla <srinivas.kandaga...@linaro.org>
This patch moves some of the ST specific register extensions access under
condition, so that other SOCs like Qualcomm or ARM would not a side effect of
writing to those reserved/different purpose bits.
Signed-off-by: Srinivas Kandagatla <srinivas.kandaga...@linaro.org>
---
drivers/mmc/host/mmci.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/drivers/mmc/host/mmci.c b/drivers/mmc/host/mmci.c
index 2dc7581..179abfb 100644
--- a/drivers/mmc/host/mmci.c
+++ b/drivers/mmc/host/mmci.c
@@ -270,7 +270,8 @@ static void mmci_write_pwrreg(struct mmci_host *host, u32
pwr)
static void mmci_write_datactrlreg(struct mmci_host *host, u32 datactrl)
{
/* Keep ST Micro busy mode if enabled */
- datactrl |= host->datactrl_reg & MCI_ST_DPSM_BUSYMODE;
+ if (host->hw_designer == AMBA_VENDOR_ST)
+ datactrl |= host->datactrl_reg & MCI_ST_DPSM_BUSYMODE;
if (host->datactrl_reg != datactrl) {
host->datactrl_reg = datactrl;
@@ -816,7 +817,8 @@ static void mmci_start_data(struct mmci_host *host, struct
mmc_data *data)
mmci_write_clkreg(host, clk);
}
- if (host->mmc->ios.timing == MMC_TIMING_UHS_DDR50)
+ if (host->mmc->ios.timing == MMC_TIMING_UHS_DDR50 &&
+ host->hw_designer == AMBA_VENDOR_ST)
datactrl |= MCI_ST_DPSM_DDRMODE;
/*
--
1.7.9.5
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