PXA1928 SDHCI controller has few differences, for example,
PXAxxx PXA1928
====== =======
SDCLK_DELAY field 0x10A 0x114
SDCLK_DELAY mask 0x1F 0x3FF
SDCLK_DELAY shift 9 8
SDCLK_SEL shift 8 2 (SEL1)
So this patch series introduces new compatible device_id
(marvell,pxav3-1928-sdhci), and makes use of .data for handling
such differences.
The series also adds support like,
- independent ->set_clock() api, as we need to enable internal clock gate
and TX clock
- pinctrl configuration based on bus speed.
- introduce new quirk SDHCI_QUIRK2_MUST_SET_SDHCI_BUS_POWER
SD_BUS_POWER & SD_BUS_VLT bit-fields are used internally to gate the
clocks, so it is important to configure them as part of ->set_power()
More detailed description is written into commit log.
- Enable SDHCI_QUIRK_BROKEN_TIMEOUT_VAL for PXA1928 device_id
Testing:
I have done basic testing on both eMMC and SD card on PXA1928 based
platform.
Note: I tried to made sure that I do not break any other platform, which
used sdhci, except HS200 configuration.
Unfortunately I do not have access to any other datasheets, where I can
cross check the details on HS200 bit-fields. Probably someone who has
access can confirm [PATCH 4/5], whether it impacts other platforms.
Kevin Liu (1):
mmc: sdhci-pxav3: Fix HS200 mode support
Vaibhav Hiremath (4):
mmc: sdhci-pxav3: Enable pxa1928 device support
mmc: sdhci-pxav3: Add platform specific set_clock ops
mmc: sdhci-pxav3: Add pinctl setting according to bus clock
mmc: sdhci: add new quirk for setting BUS_POWER & BUS_VLT fields
drivers/mmc/host/sdhci-pltfm.c | 3 +
drivers/mmc/host/sdhci-pxav3.c | 168 ++++++++++++++++++++++++++++++++++++++---
drivers/mmc/host/sdhci.c | 3 +-
drivers/mmc/host/sdhci.h | 2 +
4 files changed, 163 insertions(+), 13 deletions(-)
--
1.9.1
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