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| author | Yangbo Lu <yangbo.lu@nxp.com> | 2021-06-03 10:51:17 +0800 |
|---|---|---|
| committer | Priyanka Jain <priyanka.jain@nxp.com> | 2021-06-17 11:46:11 +0530 |
| commit | ae7020b435883f48f944d6682914a511044703ae (patch) | |
| tree | af00736b4a0df0ccca4b8f9acd6f81364e33d4e2 /drivers | |
| parent | 6bc2419cc25dd89f889c1ede88c68c046c64d943 (diff) | |
| download | u-boot-ae7020b435883f48f944d6682914a511044703ae.zip u-boot-ae7020b435883f48f944d6682914a511044703ae.tar.gz u-boot-ae7020b435883f48f944d6682914a511044703ae.tar.bz2 | |
mmc: fsl_esdhc: convert to CONFIG_FSL_ESDHC_VS33_NOT_SUPPORT
For eSDHC, power supply is through peripheral circuit.
Some eSDHC versions have value 0 of the bit but that
does not reflect the truth. 3.3V is common for SD/MMC,
and is supported for all boards with eSDHC in current
u-boot. So, make 3.3V is supported in default in code.
CONFIG_FSL_ESDHC_VS33_NOT_SUPPORT can be enabled if
future board does not support 3.3V.
This is also a fix-up for one previous patch, which converted
to use IS_ENABLED() for CONFIG_SYS_FSL_MMC_HAS_CAPBLT_VS33
that is not a Kconfig option.
Fixes: 52faec31827e ("mmc: fsl_esdhc: replace most #ifdefs by IS_ENABLED()")
Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
Reviewed-by: Jaehoon Chung <jh80.chung@samsung.com>
Reviewed-by: Priyanka Jain <priyanka.jain@nxp.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/mmc/Kconfig | 7 | ||||
| -rw-r--r-- | drivers/mmc/fsl_esdhc.c | 17 |
2 files changed, 21 insertions, 3 deletions
diff --git a/drivers/mmc/Kconfig b/drivers/mmc/Kconfig index 8901456..0909f50 100644 --- a/drivers/mmc/Kconfig +++ b/drivers/mmc/Kconfig @@ -798,6 +798,13 @@ config FSL_ESDHC_33V_IO_RELIABILITY_WORKAROUND This option assumes no hotplug, and u-boot has to make all the way to to linux to use 1.8v UHS-I speed mode if has card. +config FSL_ESDHC_VS33_NOT_SUPPORT + bool "3.3V power supply not supported" + depends on FSL_ESDHC + help + For eSDHC, power supply is through peripheral circuit. 3.3V support is + common. Select this if 3.3V power supply not supported. + config FSL_ESDHC_IMX bool "Freescale/NXP i.MX eSDHC controller support" help diff --git a/drivers/mmc/fsl_esdhc.c b/drivers/mmc/fsl_esdhc.c index 7501fdb..1d98fa6 100644 --- a/drivers/mmc/fsl_esdhc.c +++ b/drivers/mmc/fsl_esdhc.c @@ -1,7 +1,7 @@ // SPDX-License-Identifier: GPL-2.0+ /* * Copyright 2007, 2010-2011 Freescale Semiconductor, Inc - * Copyright 2019-2020 NXP + * Copyright 2019-2021 NXP * Andy Fleming * * Based vaguely on the pxa mmc code: @@ -795,10 +795,21 @@ static void fsl_esdhc_get_cfg_common(struct fsl_esdhc_priv *priv, u32 caps; caps = esdhc_read32(®s->hostcapblt); + + /* + * For eSDHC, power supply is through peripheral circuit. Some eSDHC + * versions have value 0 of the bit but that does not reflect the + * truth. 3.3V is common for SD/MMC, and is supported for all boards + * with eSDHC in current u-boot. So, make 3.3V is supported in + * default in code. CONFIG_FSL_ESDHC_VS33_NOT_SUPPORT can be enabled + * if future board does not support 3.3V. + */ + caps |= HOSTCAPBLT_VS33; + if (IS_ENABLED(CONFIG_FSL_ESDHC_VS33_NOT_SUPPORT)) + caps &= ~HOSTCAPBLT_VS33; + if (IS_ENABLED(CONFIG_SYS_FSL_ERRATUM_ESDHC135)) caps &= ~(HOSTCAPBLT_SRS | HOSTCAPBLT_VS18 | HOSTCAPBLT_VS30); - if (IS_ENABLED(CONFIG_SYS_FSL_MMC_HAS_CAPBLT_VS33)) - caps |= HOSTCAPBLT_VS33; if (caps & HOSTCAPBLT_VS18) cfg->voltages |= MMC_VDD_165_195; if (caps & HOSTCAPBLT_VS30) |