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| author | Pali Rohár <pali@kernel.org> | 2020-12-21 13:09:10 +0300 |
|---|---|---|
| committer | Stefan Roese <sr@denx.de> | 2021-01-27 09:29:43 +0300 |
| commit | 9d716339fbb4d3e074aa6dfca795bafd9832a34d (patch) | |
| tree | 4d51b2a812af3fe1fba550e6b9b2eab8c31f1678 /drivers/mmc/xenon_sdhci.c | |
| parent | 9c690314dba9a2860a97f56e6e57f63c8513ddba (diff) | |
| download | u-boot-9d716339fbb4d3e074aa6dfca795bafd9832a34d.tar.xz | |
arm: mvebu: Espressobin: Disable slot when emmc is not present
This change extends previous commit 061c6d1b238a ("arm: mvebu: Espressobin:
Detect presence of emmc at runtime") and when emmc is not present then emmc
is removed from U-Boot DM and corresponding slot is disabled. Therefore on
Espressobin board without soldered emmc, state of emmc hw should be same as
if emmc was disabled in DTS.
Signed-off-by: Pali Rohár <pali@kernel.org>
Reviewed-by: Stefan Roese <sr@denx.de>
Diffstat (limited to 'drivers/mmc/xenon_sdhci.c')
| -rw-r--r-- | drivers/mmc/xenon_sdhci.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/drivers/mmc/xenon_sdhci.c b/drivers/mmc/xenon_sdhci.c index 14fec4b8e7..d635694401 100644 --- a/drivers/mmc/xenon_sdhci.c +++ b/drivers/mmc/xenon_sdhci.c @@ -338,6 +338,16 @@ static void xenon_mmc_enable_slot(struct sdhci_host *host, u8 slot) sdhci_writel(host, var, SDHC_SYS_OP_CTRL); } +/* Disable specific slot */ +static void xenon_mmc_disable_slot(struct sdhci_host *host, u8 slot) +{ + u32 var; + + var = sdhci_readl(host, SDHC_SYS_OP_CTRL); + var &= ~(SLOT_MASK(slot) << SLOT_ENABLE_SHIFT); + sdhci_writel(host, var, SDHC_SYS_OP_CTRL); +} + /* Enable Parallel Transfer Mode */ static void xenon_mmc_enable_parallel_tran(struct sdhci_host *host, u8 slot) { @@ -503,6 +513,14 @@ static int xenon_sdhci_probe(struct udevice *dev) return ret; } +static int xenon_sdhci_remove(struct udevice *dev) +{ + struct sdhci_host *host = dev_get_priv(dev); + + xenon_mmc_disable_slot(host, XENON_MMC_SLOT_ID_HYPERION); + return 0; +} + static int xenon_sdhci_of_to_plat(struct udevice *dev) { struct sdhci_host *host = dev_get_priv(dev); @@ -552,6 +570,7 @@ U_BOOT_DRIVER(xenon_sdhci_drv) = { .ops = &sdhci_ops, .bind = xenon_sdhci_bind, .probe = xenon_sdhci_probe, + .remove = xenon_sdhci_remove, .priv_auto = sizeof(struct xenon_sdhci_priv), .plat_auto = sizeof(struct xenon_sdhci_plat), }; |