diff options
| author | Nitin Yadav <[email protected]> | 2024-04-18 14:00:57 -0500 |
|---|---|---|
| committer | Tom Rini <[email protected]> | 2024-04-29 10:55:27 -0600 |
| commit | 5048b5c61afddddb0a6ff2e6bffdd9dd028e399b (patch) | |
| tree | 9448c1eb1ea048276af9afc5a83164e18d587183 /drivers | |
| parent | 6b8dd9ca6e06bc9ebd3d55cbbe094d4947e197bf (diff) | |
mmc: am654_sdhci: Fix OTAP/ITAP delay values
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 <[email protected]>
Signed-off-by: Judith Mendez <[email protected]>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/mmc/am654_sdhci.c | 23 |
1 files changed, 19 insertions, 4 deletions
diff --git a/drivers/mmc/am654_sdhci.c b/drivers/mmc/am654_sdhci.c index 7e41dd91f8e..becb3550899 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); + + itap_del_sel = plat->itap_del_sel[mode]; + + mask |= ITAPDLYENA_MASK | ITAPDLYSEL_MASK; + 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) { |