> -Original Message-
> From: Ulf Hansson [mailto:ulf.hans...@linaro.org]
> Sent: Monday, December 28, 2015 8:10 PM
> To: Yangbo Lu
> Cc: Scott Wood; Lu Yangbo-B47093; linux-mmc; Xie Xiaobo-R63061; Leo li
> Subject: Re: [v4, 5/6] mmc: kconfig: select FSL_GUTS for
&g
> -Original Message-
> From: Yangbo Lu
> Sent: Wednesday, January 06, 2016 2:58 PM
> To: Scott Wood; Ulf Hansson
> Cc: Lu Yangbo-B47093; linux-mmc; Xie Xiaobo-R63061; Leo li
> Subject: RE: [v4, 5/6] mmc: kconfig: select FSL_GUTS for
> MMC_SDHCI_OF_ESDHC
>
&
> -Original Message-
> From: Scott Wood [mailto:scottw...@freescale.com]
> Sent: Tuesday, December 29, 2015 2:48 AM
> To: Ulf Hansson
> Cc: Yangbo Lu; linux-mmc; x@freescale.com; Leo li
> Subject: Re: [v4, 5/6] mmc: kconfig: select FSL_GUTS for
> MMC_SDHCI_OF_ESDHC
> -Original Message-
> From: Scott Wood [mailto:scottw...@freescale.com]
> Sent: Tuesday, December 29, 2015 3:10 AM
> To: Ulf Hansson; Yangbo Lu
> Cc: Lu Yangbo-B47093; linux-mmc; Xie Xiaobo-R63061; Leo li
> Subject: Re: [v4, 5/6] mmc: kconfig: select FSL_GUTS for
&g
> -Original Message-
> From: Ulf Hansson [mailto:ulf.hans...@linaro.org]
> Sent: Thursday, December 17, 2015 7:31 PM
> To: Scott Wood
> Cc: Lu Yangbo-B47093; linux-mmc; Xie Xiaobo-R63061; Leo li
> Subject: Re: [v4, 5/6] mmc: kconfig: select FSL_GUTS for
> MMC_SDHCI_OF_ESDHC
>
> [...]
>
>
Move mpc85xx.h to include/linux and rename it to svr.h as
a common header file. It has been used for mpc85xx and it will
be used for ARM-based SoC as well.
Signed-off-by: Yangbo Lu
---
Changes for v2:
- None
Changes for v3:
- None
Changes for v4:
- None
---
drivers/clk
The global utilities block controls power management, I/O device
enabling, power-onreset(POR) configuration monitoring, alternate
function selection for multiplexed signals,and clock control.
This patch adds GUTS driver to manage and access global utilities
block.
Signed-off-by: Yangbo Lu
Most of silicon errata about the eSDHC need to be identified through
the SoC version/revision. This patch makes the driver get these
information from SVR(system version register) of global utilities
registers.
Signed-off-by: Yangbo Lu
---
Changes for v2:
- Got SVR through iomap instead
The eSDHC of T4240-R1.0-R2.0 has incorrect vender version and spec version.
Acturally, the right version numbers should be VVN=0x13 and SVN = 0x1.
So, fix it in driver to avoid that incorrect version numbers break down the
ADMA data transfer.
Signed-off-by: Yangbo Lu
---
Changes for v2
GUTS driver support
to get SVR in eSDHC driver.
The last patch is to fix host version for T4240.
Yangbo Lu (6):
soc: fsl: add GUTS driver for QorIQ platforms
dt: move guts devicetree doc out of powerpc directory
powerpc/fsl: move mpc85xx.h to include/linux
mmc: sdhci-of-esdhc: get SVR from g
The sdhci-of-esdhc driver needs the GUTS driver support
to access the global utilities registers for SVR value.
So we select FSL_GUTS for MMC_SDHCI_OF_ESDHC here.
Signed-off-by: Yangbo Lu
---
Changes for v2:
- None
Changes for v3:
- None
Changes for v4:
- Added this patch
Move guts devicetree doc to Documentation/devicetree/bindings/soc/
since it's used by not only PowerPC but also ARM. Add a specification
for 'little-endian' property.
Signed-off-by: Yangbo Lu
---
Changes for v2:
- None
Changes for v3:
- None
Changes for v4:
Most of silicon errata about the eSDHC need to be identified through
the SoC version/revision. This patch makes the driver get these
information from SVR(system version register) of global utilities
registers.
Signed-off-by: Yangbo Lu
---
Changes for v2:
- Got SVR through iomap instead
Add syscon support for DCFG node, so that the driver could use
syscon regmap interface to access the device config module registers.
And the CONFIG_MFD_SYSCON should be enabled for this.
Signed-off-by: Yangbo Lu
---
Changes for v2:
- None
Changes for v3:
- Added this patch
rt to access SVR.
The following two patches are to fix host version for T4240.
Yangbo Lu (5):
powerpc/fsl: move mpc85xx.h to include/linux
mmc: sdhci-of-esdhc: get SVR from global utilities registers
mmc: kconfig: select MFD_SYSCON for MMC_SDHCI_OF_ESDHC
powerpc: dts: t4240: add syscon su
The sdhci-of-esdhc driver needs the syscon support to do
regmap and access the global utilities registers. So we
select MFD_SYSCON for MMC_SDHCI_OF_ESDHC here.
Signed-off-by: Yangbo Lu
---
Changes for v2:
- None
Changes for v3:
- Added this patch
---
drivers/mmc/host/Kconfig | 1
The eSDHC of T4240-R1.0-R2.0 has incorrect vender version and spec version.
Acturally, the right version numbers should be VVN=0x13 and SVN = 0x1.
So, fix it in driver to avoid that incorrect version numbers break down the
ADMA data transfer.
Signed-off-by: Yangbo Lu
---
Changes for v2
Move mpc85xx.h to include/linux and rename it to fsl-svr.h as
a common header file. It has been used for mpc85xx and it will
be used for ARM-based SoC as well.
Signed-off-by: Yangbo Lu
---
Changes for v2:
- None
Changes for v3:
- Added this patch
---
arch/powerpc/include/asm
if (vvn == VENDOR_V_22)
host->quirks2 |= SDHCI_QUIRK2_HOST_NO_CMD23;
if (vvn > VENDOR_V_22)
host->quirks &= ~SDHCI_QUIRK_NO_BUSY_IRQ;
}
This patch is used to fix it by add/remove some quirks according to
verdor version in probe.
Signe
The eSDHC doesn't have a standard power control register, so when
writing this register in stack we should do nothing to avoid
incorrect operation.
Signed-off-by: Yangbo Lu
---
drivers/mmc/host/sdhci-of-esdhc.c | 6 ++
1 file changed, 6 insertions(+)
diff --git a/drivers/mmc/host/sdh
Signed-off-by: Yangbo Lu
---
Changes for v5:
- Added this quirk patch
Changes for v6: None
---
drivers/mmc/host/sdhci-of-esdhc.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/mmc/host/sdhci-of-esdhc.c
b/drivers/mmc/host/sdhci-of-esdhc.c
index 910838f..7b9282b 100644
To support little endian eSDHC controller, we redefine both BE and
LE IO accessors. In the new accessors, use ioread*/iowrite* instead
of in_be32/out_be32 and will select accessors according to endian
mode in probe function.
Signed-off-by: Yangbo Lu
---
Changes for v2:
- Split v1 patches
Signed-off-by: Yangbo Lu
---
Changes for v4:
- Added this mmc DT documentation patch
Changes for v5:
- Updated DT documentation fsl-esdhc.txt instead of mmc.txt
- Used 'big-endian' as default endian mode
Changes for v6: None
---
Documentation/devicetree/bindin
Freescale eSDHC driver now supports both little-endian and
big-endian mode eSDHC IPs for ARM and PPC. So, MMC_SDHCI_OF_ESDHC
option needs to be reconfigured.
Signed-off-by: Yangbo Lu
---
Changes for v5:
- Added this Kconfig patch
Changes for v6: None
---
drivers/mmc/host/Kconfig | 6
Signed-off-by: Yangbo Lu
---
drivers/mmc/host/sdhci-of-esdhc.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/mmc/host/sdhci-of-esdhc.c
b/drivers/mmc/host/sdhci-of-esdhc.c
index 5315864..5ddcfc8 100644
--- a/drivers/mmc/host/sdhci-of-esdhc.c
+++ b/drivers/mmc/host/sdhci-of
Freescale eSDHC driver now supports both little-endian and
big-endian mode eSDHC IPs for ARM and PPC. So, MMC_SDHCI_OF_ESDHC
option needs to be reconfigured.
Signed-off-by: Yangbo Lu
---
drivers/mmc/host/Kconfig | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers
Signed-off-by: Yangbo Lu
---
Changes for v5:
- Redefined io accessors for both BE and LE eSDHC
Changes for v4:
- Moved endian mode checking back to sdhci-pltfm driver
Changes for v3:
- Moved endian mode checking to generic mmc host driver
---
Documentation/devicetree
To support little endian eSDHC controller, we redefine both BE and
LE IO accessors. In the new accessors, use ioread*/iowrite* instead
of in_be32/out_be32 and will select accessors according to endian
mode in probe function.
Signed-off-by: Yangbo Lu
---
drivers/mmc/host/sdhci-esdhc.h| 2
IO signal voltage switching is used for UHS speed mode. After the
voltage switching, the card is in UHS mode and it's needed to
set 4bit bus width before any data transfer command.
Signed-off-by: Yangbo Lu
---
drivers/mmc/core/sd.c | 9 +
1 file changed, 9 insertions(+)
diff --
efore executing tuning procedure, eSDHC should set its own
tuning block.
static const struct sdhci_ops sdhci_esdhc_ops = {
...
.set_tuning_block = esdhc_set_tuning_block,
.signal_voltage_switch = esdhc_signal_voltage_switch,
};
Signed-off-by: Yangbo Lu
---
drivers/mmc/host/
Signed-off-by: Yangbo Lu
---
drivers/mmc/host/sdhci-of-esdhc.c | 4
1 file changed, 4 insertions(+)
diff --git a/drivers/mmc/host/sdhci-of-esdhc.c
b/drivers/mmc/host/sdhci-of-esdhc.c
index bffc8c4..5aabadf 100644
--- a/drivers/mmc/host/sdhci-of-esdhc.c
+++ b/drivers/mmc/host/sdhci-of
Present*/
Signed-off-by: Yangbo Lu
---
drivers/mmc/host/sdhci-esdhc.h| 22
drivers/mmc/host/sdhci-of-esdhc.c | 116 +-
2 files changed, 136 insertions(+), 2 deletions(-)
diff --git a/drivers/mmc/host/sdhci-esdhc.h b/drivers/mmc/host/sdhci
Add a signal voltage switching callback to let host use its own
switching process.
Signed-off-by: Yangbo Lu
---
Changes for v2:
- Modified commit message
- Added SDR50 support patches
---
drivers/mmc/host/sdhci.c | 5 +
drivers/mmc/host/sdhci.h | 2 ++
2 files changed, 7
Add a tuning block setting callback to let host set its
tuning block before executing tuning procedure.
Signed-off-by: Yangbo Lu
---
drivers/mmc/host/sdhci.c | 3 +++
drivers/mmc/host/sdhci.h | 1 +
2 files changed, 4 insertions(+)
diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host
Although eMMC spec does not require a delay between tuning cycles,
some hosts need it to avoid tuning failure.
Signed-off-by: Yangbo Lu
---
drivers/mmc/host/sdhci.c | 3 ++-
drivers/mmc/host/sdhci.h | 2 ++
2 files changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/mmc/host/sdhci.c b
Document Freescale eSDHC 'adapter-type' and 'peripheral-frequency'
properties.
Signed-off-by: Yangbo Lu
---
Documentation/devicetree/bindings/mmc/fsl-esdhc.txt | 12
1 file changed, 12 insertions(+)
diff --git a/Documentation/devicetree/bindings/mmc/fsl-esdhc.
Enable interrupt mode to detect card instead of polling mode for
ls1021a by removing the quirk SDHCI_QUIRK_BROKEN_CARD_DETECTION.
This could improve data transferring performance and avoid the call
trace caused by polling card status sometime.
Signed-off-by: Yangbo Lu
---
Changes for v2
Enable interrupt mode to detect card instead of polling mode for
ls1021a by removing the quirk SDHCI_QUIRK_BROKEN_CARD_DETECTION.
This could improve data transferring performance and avoid the call
trace caused by polling card status sometime.
Signed-off-by: Yangbo Lu
---
drivers/mmc/host/sdhci
Document Freescale eSDHC 'adapter-type' and 'peripheral-frequency'
properties.
Signed-off-by: Yangbo Lu
---
Documentation/devicetree/bindings/mmc/fsl-esdhc.txt | 12
1 file changed, 12 insertions(+)
diff --git a/Documentation/devicetree/bindings/mmc/fsl-esdhc.
Present*/
Signed-off-by: Yangbo Lu
---
drivers/mmc/host/sdhci-esdhc.h| 22
drivers/mmc/host/sdhci-of-esdhc.c | 116 +-
2 files changed, 136 insertions(+), 2 deletions(-)
diff --git a/drivers/mmc/host/sdhci-esdhc.h b/drivers/mmc/host/sdhci
Signed-off-by: Yangbo Lu
---
drivers/mmc/host/sdhci-of-esdhc.c | 4
1 file changed, 4 insertions(+)
diff --git a/drivers/mmc/host/sdhci-of-esdhc.c
b/drivers/mmc/host/sdhci-of-esdhc.c
index 57e1e8b..46efa05 100644
--- a/drivers/mmc/host/sdhci-of-esdhc.c
+++ b/drivers/mmc/host/sdhci-of
Although eMMC spec does not require a delay between tuning cycles,
some hosts need it to avoid tuning failure.
Signed-off-by: Yangbo Lu
---
drivers/mmc/host/sdhci.c | 3 ++-
drivers/mmc/host/sdhci.h | 2 ++
2 files changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/mmc/host/sdhci.c b
Add a signal voltage switching callback to let host use its own
switching process.
Signed-off-by: Yangbo Lu
---
drivers/mmc/host/sdhci.c | 5 +
drivers/mmc/host/sdhci.h | 2 ++
2 files changed, 7 insertions(+)
diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c
index 64b7fdb
Add a tuning block setting callback to let host set its
tuning block before executing tuning procedure.
Signed-off-by: Yangbo Lu
---
drivers/mmc/host/sdhci.c | 3 +++
drivers/mmc/host/sdhci.h | 1 +
2 files changed, 4 insertions(+)
diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host
For T4240-R1.0-R2.0, the HOSTVER register has incorrcet vender
version value and sdhc spec version value. This will break down
the ADMA data transfer. So add workaround to get right value
VVN=0x13, SVN = 0x1.
Signed-off-by: Yangbo Lu
---
drivers/mmc/host/sdhci-of-esdhc.c | 8
1 file
Freescale QorIQ SOCs have the SVR(System version register) containing
the system version number for the device. Sometimes the eSDHC driver
needs to know this information for some errata workaround. So, we read
SVR from the global utilities block of the chip.
Signed-off-by: Yangbo Lu
---
drivers
Move getting property code from sdhci_esdhc_probe() into
esdhc_get_property().
Signed-off-by: Yangbo Lu
---
Changes for v2:
- get SVR from GUTS block instead of dts
---
drivers/mmc/host/sdhci-of-esdhc.c | 31 +--
1 file changed, 17 insertions(+), 14 deletions
For eSDHC(version < 2.3), the pre divider only could divide base clock
by 2 at least. Add workaround for this to avoid unexpected issue.
Signed-off-by: Yangbo Lu
---
drivers/mmc/host/sdhci-of-esdhc.c | 6 ++
1 file changed, 6 insertions(+)
diff --git a/drivers/mmc/host/sdhci-of-esdhc.c
For eSDHC(version < 2.3), the pre divider only could divide base clock
by 2 at least. Add workaround for this to avoid unexpected issue.
Signed-off-by: Yangbo Lu
---
drivers/mmc/host/sdhci-of-esdhc.c | 6 ++
1 file changed, 6 insertions(+)
diff --git a/drivers/mmc/host/sdhci-of-esdhc.c
Add eMMC DDR mode support for Freescale SDHC adapter card.
The u-boot should provide device tree properties 'adapter-type'
and 'periperal-frequency' for this feature, if not, the card
would not use DDR mode.
Signed-off-by: Yangbo Lu
---
drivers/mmc/host/sdhci-esdhc.h|
Signed-off-by: Yangbo Lu
---
arch/powerpc/boot/dts/fsl/pq3-esdhc-0.dtsi | 1 +
arch/powerpc/boot/dts/fsl/qoriq-esdhc-0.dtsi | 1 +
2 files changed, 2 insertions(+)
diff --git a/arch/powerpc/boot/dts/fsl/pq3-esdhc-0.dtsi
b/arch/powerpc/boot/dts/fsl/pq3-esdhc-0.dtsi
index 5743433..57f519e
Signed-off-by: Yangbo Lu
---
drivers/mmc/host/sdhci-of-esdhc.c | 105 +-
1 file changed, 69 insertions(+), 36 deletions(-)
diff --git a/drivers/mmc/host/sdhci-of-esdhc.c
b/drivers/mmc/host/sdhci-of-esdhc.c
index 797be75..f1021d8 100644
--- a/drivers/mmc/host
This patch adds little-endian mode support for little-endian host
controller. To indicate the little-endian mode, we could add
'little-endian' property in device tree node.
Signed-off-by: Yangbo Lu
---
Changes for v4:
- Moved endian mode checking back to sdhci-pltfm driver
Chan
Signed-off-by: Yangbo Lu
---
drivers/mmc/host/sdhci-of-hlwd.c | 12 ++--
1 file changed, 6 insertions(+), 6 deletions(-)
diff --git a/drivers/mmc/host/sdhci-of-hlwd.c b/drivers/mmc/host/sdhci-of-hlwd.c
index 4079a96..83d8149 100644
--- a/drivers/mmc/host/sdhci-of-hlwd.c
+++ b/drivers
Add specification of 'big-endian' property. if the controller
is big endian mode, specify this property in device tree node.
The default endian mode is little endian.
Signed-off-by: Yangbo Lu
---
Documentation/devicetree/bindings/mmc/mmc.txt | 2 ++
1 file changed, 2 insertions(+)
di
Move sdhci_get_of_property and other getting property code from
sdhci_esdhc_probe into esdhc_get_property.
Signed-off-by: Yangbo Lu
---
drivers/mmc/host/sdhci-of-esdhc.c | 31 +--
1 file changed, 17 insertions(+), 14 deletions(-)
diff --git a/drivers/mmc/host/sdhci
Add 'cpu-rev' property for cpus node to support getting cpu revision
from dts, since it's not good to get cpu revision using powerpc specific
function(like SVR_REV()) in common drivers.
Signed-off-by: Yangbo Lu
---
arch/powerpc/platforms/85xx/common.
For T4240-R1.0-R2.0, the HOSTVER register has incorrcet vender
version value and sdhc spec version value. This will break down
the ADMA data transfer. So add workaround to get right value
VVN=0x13, SVN = 0x1.
Signed-off-by: Yangbo Lu
---
drivers/mmc/host/sdhci-esdhc.h| 5 +
drivers/mmc
It needs to check suspend/resume hooks before calling them to avoid
call trace during hibernation.
Signed-off-by: Yangbo Lu
---
drivers/mmc/core/bus.c | 13 -
1 file changed, 8 insertions(+), 5 deletions(-)
diff --git a/drivers/mmc/core/bus.c b/drivers/mmc/core/bus.c
index 972ff84
hread pointer.
Signed-off-by: Yangbo Lu
---
include/linux/mmc/host.h | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/include/linux/mmc/host.h b/include/linux/mmc/host.h
index 1369e54..83b81fd 100644
--- a/include/linux/mmc/host.h
+++ b/include/linux/mmc/host.h
@@ -412,7 +
g SET_BLOCK_COUNT command, card status 0x400900
mmcblk0: timed out sending SET_BLOCK_COUNT command, card status 0x400900
end_request: I/O error, dev mmcblk0, sector 0
Buffer I/O error on device mmcblk0, logical block 0
mmcblk0: timed out sending SET_BLOCK_COUNT command, card status 0x400900
eSDHC supports high speed mode, but has no enabling bit for it.
Add this quirk to avoid writing to eSDHC_PROCTL[DTW] by mistake.
Signed-off-by: Yangbo Lu
---
drivers/mmc/host/sdhci-esdhc.h | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/mmc/host/sdhci-esdhc.h b
eMMC build-in on T4240 board can't work when using ADMA to transfer
data, but SDHC card could work well. No erratum provided, use SDMA
instead to get it to work first.
Signed-off-by: Yangbo Lu
---
drivers/mmc/host/sdhci-pltfm.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/driver
Add SDHCI_QUIRK2_CIRCUIT_SUPPORT_VS33 for T4240
Signed-off-by: Yangbo Lu
---
drivers/mmc/host/sdhci-of-esdhc.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/mmc/host/sdhci-of-esdhc.c
b/drivers/mmc/host/sdhci-of-esdhc.c
index 22e9111..4f5fe42 100644
--- a/drivers/mmc/host/sdhci
This quirk is used for controllers that can only support 1.8V
voltage but the peripheral hardware circuit has capability to
support 3.3V voltage.
Signed-off-by: Yangbo Lu
---
drivers/mmc/host/sdhci.c | 3 +++
drivers/mmc/host/sdhci.h | 4
2 files changed, 7 insertions(+)
diff --git a
Enable interrupt mode to detect card instead of polling mode
for P1020/P4080/P5020/P5040/T1040 by removing the quirk
SDHCI_QUIRK_BROKEN_CARD_DETECTION. This could improve data
transferring performance and avoid the call trace caused by
polling card status sometime.
Signed-off-by: Yangbo Lu
Add eMMC DDR mode support for Freescale SDHC adapter card.
The u-boot should provide device tree properties 'adapter-type'
and 'periperal-frequency' for this feature, if not, the card
would not use DDR mode.
Signed-off-by: Yangbo Lu
---
drivers/mmc/host/sdhci-esdhc.h|
Signed-off-by: Yangbo Lu
---
drivers/mmc/host/sdhci-of-esdhc.c | 105 +-
1 file changed, 69 insertions(+), 36 deletions(-)
diff --git a/drivers/mmc/host/sdhci-of-esdhc.c
b/drivers/mmc/host/sdhci-of-esdhc.c
index 22e9111..858d65d 100644
--- a/drivers/mmc/host
Signed-off-by: Yangbo Lu
---
drivers/mmc/host/sdhci-of-hlwd.c | 12 ++--
1 file changed, 6 insertions(+), 6 deletions(-)
diff --git a/drivers/mmc/host/sdhci-of-hlwd.c b/drivers/mmc/host/sdhci-of-hlwd.c
index 4079a96..83d8149 100644
--- a/drivers/mmc/host/sdhci-of-hlwd.c
+++ b/drivers
This patch adds little-endian mode support for little-endian host
controller. To indicate the little-endian mode, we could add
'little-endian' property in device tree node.
Signed-off-by: Yangbo Lu
---
drivers/mmc/host/sdhci-pltfm.c | 12 ++-
drivers/mmc/host/sdhci-pl
Add eMMC DDR mode support for Freescale SDHC adapter card.
The u-boot should provide device tree properties 'adapter-type'
and 'periperal-frequency' for this feature, if not, the card
would choose other mode instead of DDR.
Signed-off-by: Yangbo Lu
---
drivers/mmc/host/sd
This patch is to support little-endian mode for ARM
eSDHC that has the same IP block with PowerPC but has
different endian mode.
Signed-off-by: Yangbo Lu
---
drivers/mmc/host/sdhci-of-esdhc.c | 105 +-
drivers/mmc/host/sdhci-of-hlwd.c | 12 ++---
drivers
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