structure member 'cd_inverted' of omap_hsmmc_data
is available only when OMAP_HSMMC_USE_GPIO is
defined.
When CONFIG_DM_MMC is defined, but not
CONFIG_OMAP_GPIO, this will cause build breakage
in omap_hsmmc driver of the sort:
CC drivers/mmc/omap_hsmmc.o
../drivers/mmc/omap_hsmmc.c: In function 'omap_hsmmc_ofdata_to_platdata':
../drivers/mmc/omap_hsmmc.c:1763:6: error: 'struct omap_hsmmc_data' has no member named 'cd_inverted'
priv->cd_inverted = fdtdec_get_bool(fdt, node, "cd-inverted");
^
Fix this by accessing cd_inverted only when
OMAP_HSMMC_USE_GPIO is defined.
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
Acked-by: Mugunthan V N <mugunthanvnm@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
Use the generic error number instead of specific error number.
If use the generic error number, it can debug more easier.
Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Minkyu Kang <mk7.kang@samsung.com>
Enable 8bit interface on HSMMC2 for am33xx to support 8bit eMMC chips.
Signed-off-by: Heiko Schocher <hs@denx.de>
Reviewed-by: Tom Rini <trini@konsulko.com>
Add request gpio for CD and WP gpios, so that the gpio can be
used for the respective purposes.
Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
omap_hsmmc driver directly typecasts fdt_addr_t to a pointer.
This is not strictly correct, as it gives a build warning when
fdt_addr_t is u64. So, use map_physmem for a proper typecasts.
This is inspired by commit 167efe01bc ("dm: ns16550: Use an address
instead of a pointer for the uart base")
drivers/mmc/omap_hsmmc.c: In function ‘omap_hsmmc_ofdata_to_platdata’:
drivers/mmc/omap_hsmmc.c:776:20: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
priv->base_addr = (struct hsmmc *)dev_get_addr(dev);
^
Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
Boards using the TWL6030 regulator may not all use the LDOs the same way.
Some might also not use MMC1 at all, so VMMC would't have to be enabled.
This delegates TWL6030 MMC power initializations to board-specific functions,
that may still call twl6030_power_mmc_init for the default behavior.
Signed-off-by: Paul Kocialkowski <contact@paulk.fr>
Not every device has multiple MMC slots available, so it makes sense to enable
only the required LDOs for the available slots. Generic code in omap_hsmmc will
enable both VMMC and VAUX1, in doubt.
Signed-off-by: Paul Kocialkowski <contact@paulk.fr>
This is a device number, and we want to use 'dev' to mean a driver model
device. Rename the member.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Stephen Warren <swarren@nvidia.com>
Add MMC support for k2g
Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Tested-by: Mugunthan V N <mugunthanvnm@ti.com>
Enable 8bit interface on HSMMC2 for am43xx to support 8bit eMMC chips.
Cc: Pantelis Antoniou <panto@antoniou-consulting.com>
Cc: Igor Grinberg <grinberg@compulab.co.il>
Cc: Albert Aribaud <albert.u.boot@aribaud.net>
Signed-off-by: Nikita Kiryanov <nikita@compulab.co.il>
The CMD(DAT) lines reset procedure described in the OMAP4(AM335x,
OMAP5, DRA7xx) TRMs is also necessary for AM43XX. Enable it in the
driver.
Cc: Pantelis Antoniou <panto@antoniou-consulting.com>
Cc: Igor Grinberg <grinberg@compulab.co.il>
Cc: Albert Aribaud <albert.u.boot@aribaud.net>
Signed-off-by: Nikita Kiryanov <nikita@compulab.co.il>
High capacity support is not a host capability, but a device capability
that is queried via the OCR. The flag in the operating conditions
request argument can just be set unconditionally. This matches the Linux
implementation.
[panto] Hand merged and renumbering MMC_MODE_DDR_52MHz.
Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Pantelis Antoniou <pantelis.antoniou@konsulko.com>
Cc: Pantelis Antoniou <pantelis.antoniou@konsulko.com>
Boards using the TWL4030 regulator may not all use the LDOs the same way
(e.g. MMC2 power can be controlled by another LDO than VMMC2).
This delegates TWL4030 MMC power initializations to board-specific functions,
that may still call twl4030_power_mmc_init for the default behavior.
Signed-off-by: Paul Kocialkowski <contact@paulk.fr>
Reviewed-by: Tom Rini <trini@ti.com>
[trini: Fix omap3_evm warning, add twl4030.h]
Signed-off-by: Tom Rini <trini@ti.com>
Not every device has multiple MMC slots available, so it makes sense to enable
only the required LDOs for the available slots. Generic code in omap_hsmmc will
enable both VMMC1 and VMMC2, in doubt.
Signed-off-by: Paul Kocialkowski <contact@paulk.fr>
Reviewed-by: Tom Rini <trini@ti.com>
just add a few ifdefs around because this
device is very similar to dra7xxx.
Signed-off-by: Felipe Balbi <balbi@ti.com>
Reviewed-by: Tom Rini <trini@ti.com>
Switch the default CD GPIO polarity to active low.
The current hsmmc driver assumption that the CD GPIO is active high, but
in the real hardware, usually the opposite holds.
The usual SD card socket has a mechanical switch which is grounded as
soon as a card is inserted.
Of course there might be some board logic which inverts the signal, but
as far as current users are concerned, there is no such logic.
Current U-Boot users either not using the CD functionality, or have a
different way (e.g. external to SoC GPIO controller) for checking the
card presence.
This patch also brings the polarity assumption in line with the Linux
kernel and adds appropriate comments.
This patch also might spare issues once the TWL GPIO driver will be
converted to the DM.
Signed-off-by: Igor Grinberg <grinberg@compulab.co.il>
Cc: Pantelis Antoniou <panto@antoniou-consulting.com>
Cc: Dmitry Lifshitz <lifshitz@compulab.co.il>
Reviewed-by: Tom Rini <trini@ti.com>
Add driver model support to this driver, while retaining support for the
legacy system. Driver model GPIO support is enabled with CONFIG_DM_GPIO
as usual.
Since gpio_is_valid() no longer exists, we can use the -EINVAL error
returned from gpio_request().
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Tom Rini <trini@ti.com>
Add missing prototypes for global functions and
make local functions static.
cc: panto@antoniou-consulting.com
Signed-off-by: Jeroen Hofstee <jeroen@myspectrum.nl>
The way that struct mmc was implemented was a bit of a mess;
configuration and internal state all jumbled up in a single structure.
On top of that the way initialization is done with mmc_register leads
to a lot of duplicated code in drivers.
Typically the initialization got something like this in every driver.
struct mmc *mmc = malloc(sizeof(struct mmc));
memset(mmc, 0, sizeof(struct mmc);
/* fill in fields of mmc struct */
/* store private data pointer */
mmc_register(mmc);
By using the new mmc_create call one just passes an mmc config struct
and an optional private data pointer like this:
struct mmc = mmc_create(&cfg, priv);
All in tree drivers have been updated to the new form, and expect
mmc_register to go away before long.
Changes since v1:
* Use calloc instead of manually calling memset.
* Mark mmc_register as deprecated.
Signed-off-by: Pantelis Antoniou <panto@antoniou-consulting.com>
Using an array is pointless; even more pointless (and scary) is using
sprintf to fill it without a format string.
Signed-off-by: Pantelis Antoniou <panto@antoniou-consulting.com>
Remove the in-structure ops and put them in mmc_ops with
a constant pointer to it.
This makes the mmc structure smaller as well as conserving
code space (in theory).
All in-tree drivers are converted as well; this is done in a
single patch in order to not break git bisect.
Changes since V1:
Fix compilation b0rked issue on omap platforms where OMAP_GPIO was
not set.
Signed-off-by: Pantelis Antoniou <panto@antoniou-consulting.com>
Enable 8-bit host capability for HSMMC2 and/or HSMMC3. CONFIG_HSMMC2_8BIT
(for OMAP4/5/DRA7xx) and/or CONFIG_HSMMC3_8BIT (for DRA7xx only) must be
defined in the board header if an 8-bit eMMC device is connected to the
corresponding port.
Fix the "No status update" error that appeared for eMMC devices by
inserting a 20 us delay between writing arguments and command. This
solution has been proposed by Michael Cashwell <mboards@prograde.net>.
A minor cosmetic fix in a comment as well.
Signed-off-by: Lubomir Popov <lpopov@mm-sol.com>
"mmc_send_cmd: timeout: No status update" error sometimes happens in
omap_hsmmc driver func mmc_send_cmd() when the MMC controller card
identification and selection sequence is executed for eMMC on OMAP4
boards.
It happens due to incorrect execution of CMD line reset procedure
for OMAP4. Because CMD(DAT) lines reset procedures are slightly
different for OMAP3 and OMAP4(AM335x,OMAP5,DRA7xx).
According to OMAP3 TRM:
Set SRC(SRD) bit in MMCHS_SYSCTL register to 0x1 and wait until
it returns to 0x0.
According to OMAP4(AM335x,OMAP5,DRA7xx) TRMs, CMD(DATA) lines reset
procedure steps must be as follows:
1. Initiate CMD(DAT) line reset by writing 0x1 to SRC(SRD) bit in
MMCHS_SYSCTL register (SD_SYSCTL for AM335x).
2. Poll the SRC(SRD) bit until it is set to 0x1.
3. Wait until the SRC(SRD) bit returns to 0x0
(reset procedure is completed).
Unfortunately, at present omap_hsmmc driver has support only for
OMAP3. And as result step #2 is missing for OMAP4(AM335x,OMAP5,DRA7xx).
This sometimes leads to the fact that the waiting loop which is
required in step #3 does not executed, because SRC bit does not set
yet (at the moment of checking a condition of a loop execution).
And as a result this can cause to timeout error when sending a
next command.
In the particular case (working with eMMC witch do not respond to
some SD specific command) due to incorrect reset sequence after
command SD_CMD_SEND_IF_COND which finished with CTO flag within
64 clock cycles, the next command MMC_CMD_APP_CMD leads to a
timeout error within 1s.
So, extend CMD(DATA) lines reset procedure in func
mmc_reset_controller_fsm() by adding the missing step #2 for
OMAP4+/AM335x boards.
Signed-off-by: Oleksandr Tyshchenko <oleksandr.tyshchenko@ti.com>
Acked-by: Pantelis Antoniou <panto@antoniou-consulting.com>
Since TPS659038/TWL6035/TWL6037 all belong to palmas family of TI PMICs,
rename twl6035_mmc1_poweron_ldo by a more generic palmas_mmc1_poweron_ldo
function.
Signed-off-by: Nishanth Menon <nm@ti.com>
TPS659038/TWL6035/TWL6037 all belong to palmas family of TI PMICs
Rename twl6035 to palmas to allow reuse across multiple current and
future platforms
As part of this change, change the CONFIG_TWL6035_POWER to
CONFIG_PALMAS_POWER and update usage of header file accordingly.
Signed-off-by: Nishanth Menon <nm@ti.com>
Gets rid of warnings from omap_gpio:
ERROR : check_gpio: invalid GPIO -1
(and undefined behaviour as the -1 error code is interpreted as gpio value)
Signed-off-by: Peter Korsgaard <peter.korsgaard@barco.com>
A seperate omap_sys_ctrl_regs structure is defined for
omap4 & 5. If there is any change in control module for
any of the ES versions, a new structure needs to be created.
In order to remove this dependency, making the register
structure generic for all the omap4+ boards.
Signed-off-by: R Sricharan <r.sricharan@ti.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Reviewed-by: Tom Rini <trini@ti.com>
Currently there's no appropriate place to store driver specific data
because the pointer that is meant for that (priv) is being used to
store the base address of mmc registers.
Introduce a new struct for storing driver specific data.
Signed-off-by: Nikita Kiryanov <nikita@compulab.co.il>
There are 3 MMC/SD/SDIO controllers in OMAP SoCs, but only 2 structs
are defined for devices. This leads to data being written outside of
array bounds on systems that use all 3 controllers.
Update hsmmc_dev array to the correct size.
Signed-off-by: Nikita Kiryanov <nikita@compulab.co.il>
* 'master' of git://git.denx.de/u-boot-arm: (167 commits)
OMAP4/5: Change omap4_sdp, omap4_panda, omap5_evm maintainer
ARM: omap3: Add CONFIG_SPL_BOARD_INIT for CONFIG_SPL_MMC_SUPPORT
ARM: omap3: Set SPL stack size to 8KB, image to 54KB.
arm, omap3: fix warm reset serial output on OMAP36xx/AM/DM37xx
OMAP4: Set fdt_high for OMAP4 devices to enable booting with Device Tree
omap4: do not enable auxiliary cores
omap4: do not enable fs-usb module
omap4: panda: disable uart2 pads during boot
igep00x0: change mpurate from 500 to auto
igep00x0: enable the use of a plain text file
tegra2: trivially enable 13 mhz crystal frequency
tegra: Enable keyboard for Seaboard
tegra: Switch on console mux and use environment for console
tegra: Add tegra keyboard driver
tegra: fdt: Add keyboard definitions for Seaboard
tegra: fdt: Add keyboard controller definition
tegra: Add keyboard support to funcmux
input: Add support for keyboard matrix decoding from an fdt
input: Add generic keyboard input handler
input: Add linux/input.h for key code support
fdt: Add fdtdec functions to read byte array
tegra: Enable LP0 on Seaboard
tegra: fdt: Add EMC data for Tegra2 Seaboard
tegra: i2c: Add function to find DVC bus
fdt: tegra: Add EMC node to device tree
tegra: Add EMC settings for Seaboard
tegra: Turn off power detect in board init
tegra: Set up warmboot code on Nvidia boards
tegra: Setup PMC scratch info from ap20 setup
tegra: Add warmboot implementation
tegra: Set up PMU for Nvidia boards
tegra: Add PMU to manage power supplies
tegra: Add EMC support for optimal memory timings
tegra: Add header file for APB_MISC register
tegra: Add tegra_get_chip_type() to detect SKU
tegra: Add flow, gp_padctl, fuse, sdram headers
tegra: Add crypto library for warmboot code
tegra: Add functions to access low-level Osc/PLL details
tegra: Move ap20.h header into arch location
Add AES crypto library
i2c: Add TPS6586X driver
Add abs() macro to return absolute value
fdt: Add function to return next compatible subnode
fdt: Add function to locate an array in the device tree
i.MX28: Avoid redefining serial_put[cs]()
i.MX28: Check if WP detection is implemented at all
i.MX28: Add battery boot components to SPL
i.MX28: Reorder battery status functions in SPL
i.MX28: Add LRADC init to i.MX28 SPL
i.MX28: Add LRADC register definitions
i.MX28: Shut down the LCD controller before reset
i.MX28: Add LCDIF register definitions
i.MX28: Implement boot pads sampling and reporting
i.MX28: Improve passing of data from SPL to U-Boot
M28EVK: Add SD update command
M28EVK: Implement support for new board V2.0
FEC: Abstract out register setup
MX5: PAD_CTL_DRV_VOT_LOW and PAD_CTL_DRV_VOT_HIGH exchanged
i.MX28: Add delay after CPU bypass is cleared
spi: mxs: Allow other chip selects to work
spi: mxs: Introduce spi_cs_is_valid()
mx53loco: Remove unneeded gpio_set_value()
mx53loco: Add CONFIG_REVISION_TAG
mx53loco: Turn on VUSB regulator
mx53loco: Add mc34708 support and set mx53 frequency at 1GHz
pmic: dialog: Avoid name conflicts
imx: Add u-boot.imx as target for ARM9 i.MX SOCs
i.MX2: Include asm/types.h in arch-mx25/imx-regs.h
imx: usb: There is no such register
i.MX25: usb: Set PORTSCx register
imx: nand: Support flash based BBT
i.MX25: This architecture has a GPIO4 too
i.MX25: esdhc: Add mxc_get_clock infrastructure
i.MX6: mx6q_sabrelite: add SATA bindings
i.MX6: add enable_sata_clock()
i.MX6: Add ANATOP regulator init
mx28evk: add NAND support
USB: ehci-mx6: Fix broken IO access
M28: Scan only first 512 MB of DRAM to avoid memory wraparound
Revert "i.MX28: Enable additional DRAM address bits"
M28: Enable FDT support
mx53loco: Add support for 1GHz operation for DA9053-based boards
mx53loco: Allow to print CPU information at a later stage
mx5: Add clock config interface
imx-common: Factor out get_ahb_clk()
i.MX6Q: mx6qsabrelite: Add keypress support to alter boot flow
mx31pdk: Allow booting a zImage kernel
mx6qarm2: Allow booting a zImage kernel
mx6qsabrelite: Allow booting a zImage kernel
mx28evk: Allow booting a zImage kernel
m28evk: Allow to booting a dt kernel
mx28evk: Allow to booting a dt kernel
mx6qsabrelite: No need to set the direction for GPIO3_23 again
pmic: Add support for the Dialog DA9053 PMIC
MX53: mx53loco: Add SATA support
MX53: Add support to ESG ima3 board
SATA: add driver for MX5 / MX6 SOCs
MX53: add function to set SATA clock to internal
SATA: check for return value from sata functions
MX5: Add definitions for SATA controller
NET: fec_mxc.c: Add a way to disable auto negotiation
Define UART4 and UART5 base addresses
EXYNOS: Change bits per pixel value proper for u-boot.
EXYNOS: support TRATS board display function
LCD: support S6E8AX0 amoled driver based on EXYNOS MIPI DSI
EXYNOS: support EXYNOS MIPI DSI interface driver.
EXYNOS: support EXYNOS framebuffer and FIMD display drivers.
LCD: add data structure for EXYNOS display driver
EXYNOS: add LCD and MIPI DSI clock interface.
EXYNOS: definitions of system resgister and power management registers.
SMDK5250: fix compiler warning
misc:pmic:samsung Convert TRATS target to use MAX8997 instead of MAX8998
misc:pmic:max8997 MAX8997 support for PMIC driver
TRATS: modify the trats's configuration
ARM: Exynos4: ADC: Universal_C210: Enable LDO4 power line for ADC measurement
EXYNOS: Rename exynos5_tzpc structure to exynos_tzpc
arm: ea20: Change macro from BOARD_LATE_INIT to CONFIG_BOARD_LATE_INIT
arm: cam_enc_4xx: Change macro from BOARD_LATE_INIT to CONFIG_BOARD_LATE_INIT
cm-t35: add I2C multi-bus support
include/configs: Remove CONFIG_SYS_64BIT_STRTOUL
include/configs: Remove CONFIG_SYS_64BIT_VSPRINTF
omap3: Introduce weak misc_init_r
omap730p2: Remove empty misc_init_r
omap5912osk: Remove empty misc_init_r
omap4+: Remove CONFIG_ARCH_CPU_INIT
omap4: Remove CONFIG_SYS_MMC_SET_DEV
OMAP3: pandora: drop console kernel argument
OMAP3: pandora: revise GPIO configuration
...
Make the sysctrl structure common, so that it can
be used in generic functions across socs.
Also change the base address of the system control module, to
include all the registers and not simply the io regs.
Signed-off-by: R Sricharan <r.sricharan@ti.com>
Add parameters to the OMAP MMC initialization function so the board can
mask host capabilities and set the maximum clock frequency. While the
OMAP supports a certain set of MMC host capabilities, individual boards
may be more restricted and the OMAP may need to be configured to match
the board. The PRG_SDMMC1_SPEEDCTRL bit in the OMAP3 is an example.
Signed-off-by: Jonathan Solnit <jsolnit@gmail.com>
According to OMAP3 TRM, when the controller reports certain errors,
driver must perform a software reset. This is done by setting a bit
in SYSCTL and waiting it to clear:
- SRC on command timeout (CTO)
- SRD on data errors (DTO, DCRC and DEB)
This fixes a problem seen on OMAP3 pandora board with some cards
that won't work with a message printed multiple times:
timedout waiting on cmd inhibit to clear
Code loosely based on Linux omap_hsmmc driver.
Signed-off-by: Grazvydas Ignotas <notasas@gmail.com>
Tested-by: Tom Rini <trini@ti.com>
Tested-by: Pali Rohár <pali.rohar@gmail.com>
The message didn't state that it's waiting for STAT to _clear_,
and printing the STAT value itself can help to identify problems.
Signed-off-by: Grazvydas Ignotas <notasas@gmail.com>
Acked-by: Tom Rini <trini@ti.com>
According to OMAP3 TRM, PBIASLITEPWRDNZ bits must be cleared while MMC
power supply is being enabled and is ramping up (those bits might be
left set by the previous bootloader). It doesn't say what happens if
this procedure is violated, but better not to risk here and do things
as required.
Signed-off-by: Grazvydas Ignotas <notasas@gmail.com>
Acked-by: Tom Rini <trini@ti.com>
Before we can send a command we need both the DATI (command inhibit on
mmc_dat line) bit and CMDI (command inhibit on mmc_cmd line) are clear.
The previous behavior of only checking on DATI was insufficient on some
cards and incorrect behavior in any case. This makes the code check
for both bits being clear and makes the error print more clear as
to what happened. DATI_CMDDIS is removed as it was unused elsewhere
in the code and stood for 'DATI is set, cmds are disabled still'.
Fix originally spotted by Peter Bigot.
Tested-by: Peter A. Bigot <bigotp@acm.org>
Tested-by: Robert Nelson <robertcnelson@gmail.com>
Signed-off-by: Tom Rini <trini@ti.com>
Tested-by: Andreas Müller <schnitzeltony@googlemail.com>
Check for card detect each time an MMC/SD device is initialized. If card
detection is not implemented, this code behaves as before and continues
assuming a card is present. If no card is detected, has_init is reset
for the MMC/SD device (to force initialization next time) and an error
is returned.
Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
Tested-by: Jason Liu <jason.hui@linaro.org>
Fixing them here so that when the files are reused in
subsequent patches for omap5, avoids new checkpatch
warnings.
Signed-off-by: sricharan <r.sricharan@ti.com>
Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>
Not all omap families define OMAP_HSMMC[23]_BASE so condition those
cases in omap_mmc_init().
Cc: Sandeep Paulraj <s-paulraj@ti.com>
Signed-off-by: Tom Rini <trini@ti.com>
Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>
Config VMMC voltage to 3V for MMC/SD card slot
and PBIAS settings needed for OMAP4
Fixes MMC/SD detection on boot from eMMC.
Signed-off-by: Balaji T K <balajitk@ti.com>
Signed-off-by: Aneesh V <aneesh@ti.com>
Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>
Enable high capacity to host capability.
Fixes eMMC detection on boot from MMC/SD card.
Signed-off-by: Balaji T K <balajitk@ti.com>
Signed-off-by: Aneesh V <aneesh@ti.com>
Acked-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>
Add missing header file to fix compilation warning
omap_hsmmc.c: In function 'omap_mmc_init':
omap_hsmmc.c:474: warning: implicit declaration of function 'get_cpu_family'
omap_hsmmc.c:474: warning: implicit declaration of function 'get_cpu_rev'
introduced by commit "MMC: omap_hsmmc.c: disable
multiblock rw on old rev omap34xx silicon"
(4ca9244d74)
Signed-off-by: Dirk Behme <dirk.behme@googlemail.com>
CC: Andy Fleming <afleming@freescale.com>
CC: John Rigby <john.rigby@linaro.org>
Make existing field b_max field in struct mmc unconditional
and use it instead of CONFIG_SYS_MMC_MAX_BLK_COUNT in mmc_bread
and mmc_bwrite.
Initialize b_max to CONFIG_SYS_MMC_MAX_BLK_COUNT in mmc_register
if it has not been initialized by the hw driver.
Initialize b_max to 0 in all callers to mmc_register.
Signed-off-by: John Rigby <john.rigby@linaro.org>
Signed-off-by: Andy Fleming <afleming@freescale.com>
Having a loop with a counter is no timing guarentee for timing
accuracy or compiler optimizations. For e.g. the same loop counter
which runs when the MPU is running at 600MHz will timeout in around
half the time when running at 1GHz. or the example where GCC 4.5
compiles with different optimization compared to GCC 4.4. use timer
to keep track of time elapse and we use an emperical number - 1sec
for a worst case timeout. This should never happen, and is adequate
imaginary condition for us to fail with timeout.
Signed-off-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>
OMAP boards currently use a legacy mmc driver. This patch adds a new
mmc driver which will work with the generic mmc driver in u-boot.
This new driver will work with both OMAP3 and OMAP4 boards.
This patch does not remove the old driver. It should remain in the
tree until all boards that use it switch to the new driver.
Signed-off-by: Sukumar Ghorai <s-ghorai@ti.com>
Tested-by: Steve Sakoman <steve@sakoman.com>
