DesignWare MMC Controller can support two types of DMA
mode: external dma and internal dma. We get a RK312x platform
integrated dw_mmc and ARM pl330 dma controller. This patch add
edmac ops to suuport these platforms. I've tested it on RK312x
platform with edmac mode and RK3288 platform with idmac
On 07/29/2015 06:09 AM, Kishon Vijay Abraham I wrote:
> For beagle x15, both the vdd and io lines are connected to the
> same regulator (ldo1_reg). However vmmc_aux is populated to vdd_3v3.
> Remove it.
>
> Signed-off-by: Kishon Vijay Abraham I
> ---
> arch/arm/boot/dts/am57xx-beagle-x15.dts |
In programmable mode, if the clock frequency is too high, the divider
can be too small to meet the clock frequency requirement especially to
init the SD card. In this case, switch to the divided clock mode.
Signed-off-by: Ludovic Desroches
---
drivers/mmc/host/sdhci.c | 29 --
Hi,
This set of patches introduce a driver for the new Atmel SDMMC device avaible
on SAMA5D2 SoC.
There is also a resend of an old patch which has not been taken. Ulf asked
for some reviews since it could impact all sdhci devices but nobody did it...
This patch is not necessary for patch 2/3. It
Add an entry for Atmel SDMMC device.
Signed-off-by: Ludovic Desroches
---
MAINTAINERS | 6 ++
1 file changed, 6 insertions(+)
diff --git a/MAINTAINERS b/MAINTAINERS
index e7bdbac..6480ce9 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -1880,6 +1880,12 @@ L: linux-...@lists.infradead.or
Introduce driver for he Atmel SDMMC available on sama5d2. It is a sdhci
compliant controller.
Signed-off-by: Ludovic Desroches
---
.../devicetree/bindings/mmc/sdhci-atmel.txt| 21 +++
drivers/mmc/host/Kconfig | 8 +
drivers/mmc/host/Makefile
On 07/29/2015 02:09 PM, Kishon Vijay Abraham I wrote:
> Since vmmc can be optional for some platforms, use
> devm_regulator_get_optional() for vmmc. Now return error only
> in the case of -EPROBE_DEFER and for all other cases set
> host->vcc to NULL.
>
> Signed-off-by: Kishon Vijay Abraham I
> --
[ Please keep me in CC as I'm not subscribed to the list]
Hello,
We are using the “Virtex-5 FPGA Integrated Endpoint Block for PCI
Express” in Linux platform. It supports only a single-function(Header
Type, Bit 7 is zero), but actually it is having different functions in
different Bar’s.
It has
For beagle x15, both the vdd and io lines are connected to the
same regulator (ldo1_reg). However vmmc_aux is populated to vdd_3v3.
Remove it.
Signed-off-by: Kishon Vijay Abraham I
---
arch/arm/boot/dts/am57xx-beagle-x15.dts |1 -
1 file changed, 1 deletion(-)
diff --git a/arch/arm/boot/dts
Since vmmc can be optional for some platforms, use
devm_regulator_get_optional() for vmmc. Now return error only
in the case of -EPROBE_DEFER and for all other cases set
host->vcc to NULL.
Signed-off-by: Kishon Vijay Abraham I
---
drivers/mmc/host/omap_hsmmc.c |8 +---
1 file changed, 5
If the regulator is enabled on boot (checked using regulator_is_enabled),
invoke regulator_enable() so that the usecount reflects the correct
state of the regulator and then disable the regulator so that the
initial state of the regulator is disabled. Avoid using ->set_power,
since set_power also t
No functional change. Cleanup omap_hsmmc_set_power by adding separate
functions for enable/disable supply and invoke it from
omap_hsmmc_set_power.
Signed-off-by: Kishon Vijay Abraham I
---
drivers/mmc/host/omap_hsmmc.c | 101 +++--
1 file changed, 66 insertio
No functional change. Instead of using a local regulator variable
in omap_hsmmc_reg_get() for holding the return value of
devm_regulator_get_optional() and then assigning to omap_hsmmc_host
regulator members: vcc, vcc_aux and pbias, directly use the
omap_hsmmc_host regulator members.
Signed-off-by
This patch series does the following
*) Uses devm_regulator_get_optional() for vmmc and then removes the
CONFIG_REGULATOR check altogether.
*) return on -EPROBE_DEFER
*) enable/disable vmmc_aux regulator based on prior state
This series is in preparation for implementing the voltage switch
sequ
Fix omap_hsmmc_set_power so that pbias regulator is not enabled
during power off.
Signed-off-by: Kishon Vijay Abraham I
---
drivers/mmc/host/omap_hsmmc.c |8
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c
i
EPROBE_DEFER is not fatal and it means the regulator can still be
obtained. Hence return error if devm_regulator_get_optional for
vmmc_aux and pbias returns -EPROBE_DEFER. This gives omap_hsmmc
driver another chance to get these regulators.
Signed-off-by: Kishon Vijay Abraham I
---
drivers/mmc/h
If the vmmc regulator provides a valid ocrmask, use it. By this even if
the pdata has a valid ocrmask, it will be overwritten with the ocrmask
of the vmmc regulator.
Also remove the unnecessary compatibility check between the ocrmask in
the pdata and the ocrmask from the vmmc regulator.
Signed-off
Remove the unnecessary pbias regulator_set_voltage done after
pbias regulator_disable in omap_hsmmc_set_power.
Signed-off-by: Kishon Vijay Abraham I
Reviewed-by: Roger Quadros
---
drivers/mmc/host/omap_hsmmc.c |1 -
1 file changed, 1 deletion(-)
diff --git a/drivers/mmc/host/omap_hsmmc.c b
Return error if any of the regulator APIs (regulator_enable,
regulator_disable, regulator_set_voltage) fails in
omap_hsmmc_set_power to avoid undefined behavior.
Signed-off-by: Kishon Vijay Abraham I
---
drivers/mmc/host/omap_hsmmc.c | 52 +++--
1 file chang
No functional change. Instead of using our own vcc and vcc_aux
members, use vmmc and vqmmc present in mmc_host which is present
for the same purpose.
Signed-off-by: Kishon Vijay Abraham I
Reviewed-by: Roger Quadros
---
drivers/mmc/host/omap_hsmmc.c | 63 ++-
Now that support for platforms which have optional regulator is added,
remove CONFIG_REGULATOR check in omap_hsmmc.
Signed-off-by: Kishon Vijay Abraham I
---
drivers/mmc/host/omap_hsmmc.c | 35 +++
1 file changed, 3 insertions(+), 32 deletions(-)
diff --git a/d
From: Roger Quadros
For platforms that doesn't have explicit regulator control in MMC,
populate voltage-ranges in MMC device tree node and use
mmc_of_parse_voltage to get ocr_avail
Signed-off-by: Roger Quadros
Signed-off-by: Lokesh Vutla
Signed-off-by: Murali Karicheri
Signed-off-by: Franklin
Use regulator_is_enabled of pbias regulator to find pbias regulator
status instead of maintaining a custom bookkeeping
pbias_enabled variable.
Signed-off-by: Kishon Vijay Abraham I
---
drivers/mmc/host/omap_hsmmc.c |8 ++--
1 file changed, 2 insertions(+), 6 deletions(-)
diff --git a/dr
No functional change. Cleanup omap_hsmmc_set_power by adding separate
functions to set pbias and invoke it from omap_hsmmc_set_power.
Signed-off-by: Kishon Vijay Abraham I
---
drivers/mmc/host/omap_hsmmc.c | 78 +
1 file changed, 48 insertions(+), 30 del
vdd voltage is set in mmc core to ios->vdd and vmmc should actually
be set to this voltage. Modify omap_hsmmc_enable_supply
to not take vdd as argument since now it's directly set to
the voltage in ios->vdd.
Signed-off-by: Kishon Vijay Abraham I
---
drivers/mmc/host/omap_hsmmc.c |7 ---
enable vmmc_aux regulator only if it is in disabled state and disable
vmmc_aux regulator only if it is in enabled state.
Signed-off-by: Kishon Vijay Abraham I
---
drivers/mmc/host/omap_hsmmc.c |4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/mmc/host/omap_hsmmc.
On Wed, Jul 29, 2015 at 05:03:51PM +0800, Haibo Chen wrote:
> Changes for v3:
> -Add property describe in binding doc.
>
> Haibo Chen (6):
> mmc: sdhci-esdhc-imx: add imx7d support and support HS400
> mmc: sdhci-esdhc-imx: add tuning-step seting support
> ARM: dts: imx7d-sdb: add eMMC5.0 sup
imx7d-sdb board has a eMMC5.0 on usdhc3. This eMMC support HS400.
This patch add usdhc3 support for HS400
Signed-off-by: Haibo Chen
---
arch/arm/boot/dts/imx7d-sdb.dts | 13 +
1 file changed, 13 insertions(+)
diff --git a/arch/arm/boot/dts/imx7d-sdb.dts b/arch/arm/boot/dts/imx7d-sdb
Changes for v3:
-Add property describe in binding doc.
Haibo Chen (6):
mmc: sdhci-esdhc-imx: add imx7d support and support HS400
mmc: sdhci-esdhc-imx: add tuning-step seting support
ARM: dts: imx7d-sdb: add eMMC5.0 support
mmc: sdhci-esdhc-imx: add compatible string in bingding doc
mmc:
The imx7d usdhc is derived from imx6sx, the difference is that
imx7d support HS400.
So introduce a new compatible string for imx7d and add HS400
support for imx7d usdhc.
Signed-off-by: Haibo Chen
---
drivers/mmc/host/sdhci-esdhc-imx.c | 66 ++
1 file changed,
i.MX7D support eMMC HS400 mode, this mode can run in 8 bit,200MHZ
DDR mode. So the I/O speed improve a lot compare to SD3.0
The default burst length is 8, if we don't change this value, in
HS400 mode, when we do eMMC read operation, we can find that the
clock signal will stop for a period of time.
tuning-step is the delay cell steps in tuning procedure. The default value
of tuning-step is 1. For imx6 series usdhc, tuning procedure can be passed
when the tuning-step value is 1. But imx7d usdhc need the tuning-step value
as 2, otherwise it can't pass the tuning procedure.
So this patch add th
Currently we find that if a usdhc is choosed to boot system, then ROM
code will set the burst length enable bit of this usdhc as 0.
This will make performance drop a lot if this usdhc's burst length is
16. So this patch set back the burst_length_enable bit as 1, which is
the default value, and mea
Add a required property "fsl,imx7d-usdhc" in binding doc.
Add an optional property "fsl,tuning-step" in binding doc.
Signed-off-by: Haibo Chen
---
Documentation/devicetree/bindings/mmc/fsl-imx-esdhc.txt | 2 ++
1 file changed, 2 insertions(+)
diff --git a/Documentation/devicetree/bindings/mmc/f
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