Hi Judith, > -----Original Message----- > From: Judith Mendez <j...@ti.com> > Sent: Tuesday, April 16, 2024 6:28 AM > To: Peng Fan <peng....@nxp.com>; Jaehoon Chung <jh80.ch...@samsung.com>; Tom > Rini <tr...@konsulko.com> > Cc: Nitin Yadav <n-ya...@ti.com>; Simon Glass <s...@chromium.org>; > u-boot@lists.denx.de > Subject: [PATCH 2/5] mmc: am654_sdhci: Fix OTAP/ITAP delay values > > From: Nitin Yadav <n-ya...@ti.com> > > U-Boot is failing to boot class U1 UHS SD cards due to incorrect > OTAP and ITAP delay select values. Update OTAP and ITAP delay select > values from DT. > > Fixes: c7d106b4eb3 ("mmc: am654_sdhci: Update output tap delay writes") > Signed-off-by: Nitin Yadav <n-ya...@ti.com> > Signed-off-by: Judith Mendez <j...@ti.com> > --- > drivers/mmc/am654_sdhci.c | 23 +++++++++++++++++++---- > 1 file changed, 19 insertions(+), 4 deletions(-) > > diff --git a/drivers/mmc/am654_sdhci.c b/drivers/mmc/am654_sdhci.c > index e5ad00e2531..1dd032e1e36 100644 > --- a/drivers/mmc/am654_sdhci.c > +++ b/drivers/mmc/am654_sdhci.c > @@ -513,12 +513,27 @@ static int j721e_4bit_sdhci_set_ios_post(struct > sdhci_host *host) > { > struct udevice *dev = host->mmc->dev; > struct am654_sdhci_plat *plat = dev_get_plat(dev); > - u32 otap_del_sel, mask, val; > + int mode = host->mmc->selected_mode; > + u32 otap_del_sel; > + u32 itap_del_sel; > + u32 mask, val; > + > + otap_del_sel = plat->otap_del_sel[mode]; > > - otap_del_sel = plat->otap_del_sel[host->mmc->selected_mode]; > mask = OTAPDLYENA_MASK | OTAPDLYSEL_MASK; > - val = (1 << OTAPDLYENA_SHIFT) | (otap_del_sel << OTAPDLYSEL_SHIFT); > + val = (1 << OTAPDLYENA_SHIFT) | > + (otap_del_sel << OTAPDLYSEL_SHIFT);
Is there any reason to touch this? And I can't understood this, this val doesn’t use anywhere. Because val is resetting the below. It seems same value, right? > + > + itap_del_sel = plat->itap_del_sel[mode]; > + > + mask |= ITAPDLYENA_MASK | ITAPDLYSEL_MASK; Can it be set at above? mask |= OTAPDLYENA_MASK | OTAPDLYSEL_MASK | ITAPDLYENA_MASK | ITAPDLYSEL_MASK; Best Regards, Jaehoon Chung > + val = (1 << ITAPDLYENA_SHIFT) | > + (itap_del_sel << ITAPDLYSEL_SHIFT); > + > + regmap_update_bits(plat->base, PHY_CTRL4, ITAPCHGWIN_MASK, > + 1 << ITAPCHGWIN_SHIFT); > regmap_update_bits(plat->base, PHY_CTRL4, mask, val); > + regmap_update_bits(plat->base, PHY_CTRL4, ITAPCHGWIN_MASK, 0); > > regmap_update_bits(plat->base, PHY_CTRL5, CLKBUFSEL_MASK, > plat->clkbuf_sel); > @@ -572,7 +587,7 @@ static int sdhci_am654_get_otap_delay(struct udevice *dev, > * Remove the corresponding capability if an otap-del-sel > * value is not found > */ > - for (i = MMC_HS; i <= MMC_HS_400; i++) { > + for (i = MMC_LEGACY; i <= MMC_HS_400; i++) { > ret = dev_read_u32(dev, td[i].otap_binding, > &plat->otap_del_sel[i]); > if (ret) { > -- > 2.43.2