Tom Rini [Fri, 12 Apr 2013 16:38:16 +0000 (12:38 -0400)]
am335x: Really correct DDR timings on new BeagleBone part
The previous timings were done on the internal-only A1 board which has
different DDR part than all later revs. The timings need a slight
adjustment to be correct in all cases with later revs.
Signed-off-by: Tom Rini <trini@ti.com>
Holger Brunck [Tue, 15 Jan 2013 22:51:22 +0000 (22:51 +0000)]
arm/km: add support for kmsuv31 board
This board is from a u-boot point of view a mixture between kmnusa and
a standard km_kirkwood board. We have our u-boot environment in the spi
NOR flash, but we have a direct connection between the kirkwood and the
piggy. A FPGA is connected via the PCIe interface. So we only have to
select the specific features in the board setup.
Signed-off-by: Holger Brunck <holger.brunck@keymile.com>
cc: Valentin Longchamp <valentin.longchamp@keymile.com>
cc: Prafulla Wadaskar <prafulla@marvell.com>
Acked-By: Prafulla Wadaskar <prafulla@marvell.com>
Holger Brunck [Tue, 15 Jan 2013 22:51:21 +0000 (22:51 +0000)]
arm/km: use CONFIG_NAND_ECC_BCH
Switch from 1-bit ecc to 4-bit ecc.
Signed-off-by: Holger Brunck <holger.brunck@keymile.com>
cc: Valentin Longchamp <valentin.longchamp@keymile.com>
cc: Prafulla Wadaskar <prafulla@marvell.com>
Acked-By: Prafulla Wadaskar <prafulla@marvell.com>
Holger Brunck [Tue, 15 Jan 2013 22:51:20 +0000 (22:51 +0000)]
arm/km: rename BOARD_LATE_INIT to CONFIG_BOARD_LATE_INIT
commit
9660e442 cosmetic: s/BOARD_LATE_INIT/CONFIG_BOARD_LATE_INIT
removes BOARD_LATE_INIT and uses CONFIG_BOARD_LATE_INIT instead.
Therefore we have to use this define.
Signed-off-by: Holger Brunck <holger.brunck@keymile.com>
cc: Valentin Longchamp <valentin.longchamp@keymile.com>
cc: Prafulla Wadaskar <prafulla@marvell.com>
Acked-by: Prafulla Wadaskar <prafulla@marvell.com>
Gerlando Falauto [Tue, 15 Jan 2013 22:34:28 +0000 (22:34 +0000)]
kirkwood_nand: allow usage of NAND_ECC_SOFT_BCH
If CONFIG_NAND_ECC_BCH is set use 4-bit error correction code instead of
the 1-bit error correction code on the NAND device.
Signed-off-by: Gerlando Falauto <gerlando.falauto@keymile.com>
Signed-off-by: Holger Brunck <holger.brunck@keymile.com>
cc: Valentin Longchamp <valentin.longchamp@keymile.com>
cc: Prafulla Wadaskar <prafulla@marvell.com>
Acked-by: Prafulla Wadaskar <prafulla@marvell.com>
Acked-by: Scott Wood <scottwood@freescale.com>
Albert ARIBAUD [Fri, 12 Apr 2013 06:51:41 +0000 (08:51 +0200)]
Merge branch 'u-boot-ti/master' into 'u-boot-arm/master'
Fabio Estevam [Tue, 9 Apr 2013 09:03:52 +0000 (09:03 +0000)]
mx31pdk: Remove watchdog support
The conversion of mx31pdk to SPL NAND fixed the boot issue, but we start seeing
resets in loop, which prevents us from reaching the U-boot prompt.
Until the proper fix can be identified, disable watchdog, so that mx31pdk
can be functional again.
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Acked-by: Stefano Babic <sbabic@denx.de>
Benoît Thébaudeau [Thu, 11 Apr 2013 09:36:03 +0000 (09:36 +0000)]
arm: Make all linker scripts compatible with per-symbol sections
Let all ARM linker scripts handle properly -ffunction-sections
and -fdata-sections. This will be useful for future changes in order to create
symbol-specific sections in common .S files.
Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com>
Benoît Thébaudeau [Thu, 11 Apr 2013 09:36:02 +0000 (09:36 +0000)]
arm1176: Remove unused MMU setup from start.S
Following the removal of the smdk6400 board, the MMU setup code in
arm1176/start.S becomes unused, so remove it. It will still be possible to
restore it later from the Git history if necessary, in which case it should be
moved out of the relocate_code() function.
Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com>
Benoît Thébaudeau [Thu, 11 Apr 2013 09:36:01 +0000 (09:36 +0000)]
arm: Remove deprecated and now unused NAND SPL
Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com>
Benoît Thébaudeau [Thu, 11 Apr 2013 09:36:00 +0000 (09:36 +0000)]
arm: Remove support for unused s3c64xx
Following the removal of the smdk6400 board, the s3c64xx SoC becomes unused, so
remove associated code. It will still be possible to restore it later from the
Git history if necessary.
Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com>
Benoît Thébaudeau [Thu, 11 Apr 2013 09:35:59 +0000 (09:35 +0000)]
Revert "mkconfig: start deprecating Makefile config targets"
This reverts commit
1285a2808a254f3d1a809c1a541f0c0f746e03d7 since the migration
of boards from Makefile to boards.cfg is now complete.
Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com>
Benoît Thébaudeau [Thu, 11 Apr 2013 09:35:58 +0000 (09:35 +0000)]
arm: Remove support for smdk6400
The migration of boards from Makefile to boards.cfg was due for v2012.03, but
smdk6400 did not follow, and it does not build, so move it to scrapyard. It will
still be possible to restore it from the Git history before fixing it.
Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com>
Benoît Thébaudeau [Thu, 11 Apr 2013 09:35:57 +0000 (09:35 +0000)]
imx: Add u-boot-with-nand-spl.imx make target
This image combines the SPL with the i.MX header, the FCB and U-Boot.
For i.MX25/35/51, the FCB is ignored by the boot ROM, so this image is just
useful because it can be programmed on a NAND Flash page boundary.
For i.MX53, the FCB is required by the boot ROM.
This does not support i.MX6 so far because its FCB is more complicated.
Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com>
Benoît Thébaudeau [Thu, 11 Apr 2013 09:35:56 +0000 (09:35 +0000)]
imx: Add u-boot-with-spl.imx make target
This image combines the SPL with the i.MX header and U-Boot. This is a
convenient way of having a single image to program on some boot devices.
The i.MX header has to be added to the SPL before appending U-Boot, so that the
boot ROM loads only the SPL.
Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com>
Benoît Thébaudeau [Thu, 11 Apr 2013 09:35:55 +0000 (09:35 +0000)]
.gitignore: Add /SPL
Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com>
Benoît Thébaudeau [Thu, 11 Apr 2013 09:35:54 +0000 (09:35 +0000)]
Makefile: Move SHELL setup to config.mk
make never uses the SHELL variable from the environment. Instead, it
uses /bin/sh, or the value assigned to the SHELL variable by the Makefile. This
makes the export of the SHELL variable useless for sub-makes (but still useful
for the environment of recipes). However, we want all makes to use the same
shell.
This patch fixes this issue by moving the SHELL variable setup and export to the
top config.mk, so that all Makefile-s including it use the same shell.
Since BASH is used by default, this makes it possible to use things
like 'echo -e ...' in sub-makes, which would otherwise fail e.g. with /bin/sh
symlinked to /bin/dash on Ubuntu.
Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com>
Reviewed-by: Tom Rini <trini@ti.com>
Benoît Thébaudeau [Thu, 11 Apr 2013 09:35:53 +0000 (09:35 +0000)]
arm: Remove unused relocate_code() parameters
Commit
e05e5de7fae5bec79617e113916dac6631251156 made the 2 1st parameters of
ARM's relocate_code() useless since it moved the code handling them to crt0.S.
So, drop these parameters.
Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com>
Benoît Thébaudeau [Thu, 11 Apr 2013 09:35:52 +0000 (09:35 +0000)]
arm926ejs: Remove deprecated and now unused NAND SPL
Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com>
Benoît Thébaudeau [Thu, 11 Apr 2013 09:35:51 +0000 (09:35 +0000)]
nand: mxc: Switch NAND SPL to generic SPL
This also fixes support for mx31pdk and tx25, which had been broken by commit
e05e5de7fae5bec79617e113916dac6631251156.
Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com>
Acked-by: Scott Wood <scottwood@freescale.com>
Tested-by: Fabio Estevam <fabio.estevam@freescale.com>
Benoît Thébaudeau [Thu, 11 Apr 2013 09:35:50 +0000 (09:35 +0000)]
imx: Fix automatic make targets for imx images
Automatically build the 'u-boot.imx' (i.e. imx header + u-boot.bin) and 'SPL'
(i.e. imx header + u-boot-spl.bin) make targets for all imx processors
supporting this header, so for arm926ejs, arm1136 and armv7. Some combinations
were missing.
At the same time, fix the build of SPL targets not supporting the imx header on
arm1136. For arm1136, the 'SPL' make target was forced to build in all cases if
CONFIG_SPL_BUILD was defined, even for non-imx platforms or imx setups without
an imx header.
Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com>
Benoît Thébaudeau [Thu, 11 Apr 2013 09:35:49 +0000 (09:35 +0000)]
Makefile: Change CONFIG_SPL_PAD_TO to image offset
Change CONFIG_SPL_PAD_TO from a link address to an image offset since this is
more handy and closer to the purpose of this config.
Automatically define CONFIG_SPL_PAD_TO to CONFIG_SPL_MAX_SIZE (or 0 without
CONFIG_SPL_MAX_SIZE).
Test that CONFIG_SPL_PAD_TO >= CONFIG_SPL_MAX_SIZE if CONFIG_SPL_PAD_TO is
non-zero.
Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com>
Benoît Thébaudeau [Thu, 11 Apr 2013 09:35:48 +0000 (09:35 +0000)]
autoconfig.mk: Make it possible to define configs from other configs
Give more flexibility to define configs that can be interpreted by make, e.g. to
define fallback values of configs like in the example below.
Before this change, the config lines:
#define CONFIG_SPL_MAX_SIZE 2048
#define CONFIG_SPL_PAD_TO CONFIG_SPL_MAX_SIZE
would have been changed in autoconfig.mk into:
CONFIG_SPL_MAX_SIZE=2048
CONFIG_SPL_PAD_TO="CONFIG_SPL_MAX_SIZE"
Hence, a make recipe using as an argument to $(OBJCOPY):
--pad-to=$(CONFIG_SPL_PAD_TO)
would have issued:
--pad-to="CONFIG_SPL_MAX_SIZE"
which means nothing for $(OBJCOPY) and makes it fail.
Thanks to this change, the config lines above are changed in autoconfig.mk into:
CONFIG_SPL_MAX_SIZE=2048
CONFIG_SPL_PAD_TO=$(CONFIG_SPL_MAX_SIZE)
Hence, the make recipe above now issues:
--pad-to=2048
as expected from the defined config.
Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com>
Reviewed-by: Tom Rini <trini@ti.com>
Benoît Thébaudeau [Thu, 11 Apr 2013 09:35:47 +0000 (09:35 +0000)]
arm: crt0.S: Remove bogus .globl
The purpose of .globl is to export symbols for ld, not to declare external
symbols.
By the way, use the ENTRY() and ENDPROC() macros to define functions rather than
using .global directly.
Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com>
Benoît Thébaudeau [Thu, 11 Apr 2013 09:35:46 +0000 (09:35 +0000)]
arm: relocate_code(): Use __image_copy_end for end of relocation
Use __image_copy_end instead of __bss_start for the end of the image to
relocate. This is the same as commit
033ca72, but applied to all ARM start.S.
This is a more appropriate symbol naming for an image copy & relocate feature,
and this also saves a useless copy of data put between __image_copy_end and
__bss_start in linker scripts (e.g. relocation information, or MMU
initialization tables used only before jumping to the relocated image).
Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com>
Benoît Thébaudeau [Thu, 11 Apr 2013 09:35:45 +0000 (09:35 +0000)]
arm: relocate_code(): Remove useless relocation offset computation
Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com>
Benoît Thébaudeau [Thu, 11 Apr 2013 09:35:44 +0000 (09:35 +0000)]
arm1136: Remove redundant relocate_code() return
Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com>
Benoît Thébaudeau [Thu, 11 Apr 2013 09:35:43 +0000 (09:35 +0000)]
arm: relocate_code() is no longer noreturn
Commit
e05e5de7fae5bec79617e113916dac6631251156 made ARM's relocate_code()
return to its caller, but it did not update its declaration accordingly.
Fixing this function declaration fixes dropped C code following calls to
relocate_code().
Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com>
Benoît Thébaudeau [Thu, 11 Apr 2013 09:35:42 +0000 (09:35 +0000)]
arm: start.S: Fix _TEXT_BASE for SPL
_TEXT_BASE must be set to CONFIG_SPL_TEXT_BASE for generic SPL, and to
CONFIG_SYS_TEXT_BASE for non-SPL builds.
Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com>
Reviewed-by: Tom Rini <trini@ti.com>
Benoît Thébaudeau [Thu, 11 Apr 2013 09:35:41 +0000 (09:35 +0000)]
nand: mxc: Use appropriate page number in syndrome functions
The syndrome functions should use the page number passed as argument instead of
the page number saved upon NAND_CMD_READ0.
This does not make any difference if the NAND_NO_AUTOINCR option is set, but
otherwise this fixes accesses to the wrong pages.
Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com>
Acked-by: Scott Wood <scottwood@freescale.com>
Benoît Thébaudeau [Thu, 11 Apr 2013 09:35:40 +0000 (09:35 +0000)]
nand: mxc: Fix debug trace in mxc_nand_read_oob_syndrome()
The page number indicated in the debug trace of mxc_nand_read_oob_syndrome() did
not match the page being worked on.
By the way, replace the GCC-specific __FUNCTION__ with __func__.
Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com>
Acked-by: Scott Wood <scottwood@freescale.com>
Benoît Thébaudeau [Thu, 11 Apr 2013 09:35:39 +0000 (09:35 +0000)]
imx: mx53ard: Add support for NAND Flash
Add support for the Samsung K9LAG08U0M NAND Flash (2-GiB MLC NAND Flash, 2-kiB
pages, 256-kiB blocks, 30-ns R/W cycles, 1 CS) on mx53ard.
eNFC_CLK_ROOT is set up with a cycle time of 37.5 ns (400 MHz / 3 / 5) for this
board, which satisfies the 30-ns NF R/W cycle requirement.
Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com>
Tested-by: Fabio Estevam <fabio.estevam@freescale.com>
Benoît Thébaudeau [Thu, 11 Apr 2013 09:35:38 +0000 (09:35 +0000)]
imx: mx5: lowlevel_init: Simplify code
Don't use several instructions to build constant values.
Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com>
Acked-by: Stefano Babic <sbabic@denx.de>
Benoît Thébaudeau [Thu, 11 Apr 2013 09:35:37 +0000 (09:35 +0000)]
nand: mxc: Add support for i.MX5
Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com>
Acked-by: Scott Wood <scottwood@freescale.com>
Tested-by: Fabio Estevam <fabio.estevam@freescale.com>
Benoît Thébaudeau [Thu, 11 Apr 2013 09:35:36 +0000 (09:35 +0000)]
nand: mxc: Prepare to add support for i.MX5
Add some abstraction to NFC definitions so that some parts of the current code
can also be used for future i.MX5 code.
Clean up a few things by the way.
Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com>
Acked-by: Scott Wood <scottwood@freescale.com>
Tested-by: Fabio Estevam <fabio.estevam@freescale.com>
Fabio Estevam [Thu, 11 Apr 2013 09:35:35 +0000 (09:35 +0000)]
mtd: nand: mxc_nand: Fix is_16bit_nand()
Currently is_16bit_nand() is a per SoC function and it decides the bus nand
width by reading some boot related registers.
This method works when NAND is the boot medium, but does not work if another
boot medium is used. For example: booting from a SD card and then using NAND
to store the environment variables, would lead to the following error:
NAND bus width 16 instead 8 bit
No NAND device found!!!
0 MiB
Use CONFIG_SYS_NAND_BUSWIDTH_16BIT symbol to decide the bus width.
If it is defined in the board file, then consider 16-bit NAND bus-width,
otherwise assume 8-bit NAND is used.
This also aligns with Documentation/devicetree/bindings/mtd/nand.txt, which
states:
nand-bus-width : 8 or 16 bus width if not present 8
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Acked-by: Scott Wood <scottwood@freescale.com>
Reviewed-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com>
Fabio Estevam [Thu, 11 Apr 2013 09:35:34 +0000 (09:35 +0000)]
mtd: nand: Introduce CONFIG_SYS_NAND_BUSWIDTH_16BIT
Introduce CONFIG_SYS_NAND_BUSWIDTH_16BIT option so that other NAND controller
drivers could use it when a 16-bit NAND is deployed.
drivers/mtd/nand/ndfc has CONFIG_SYS_NDFC_16BIT, so just rename it, so that
other NAND drivers could reuse the same symbol.
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Acked-by: Scott Wood <scottwood@freescale.com>
Reviewed-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com>
Jon Hunter [Tue, 9 Apr 2013 21:41:33 +0000 (16:41 -0500)]
omap5912-osk: Fix get_timer() and CONFIG_SYS_HZ
The function get_timer() should return time in ms and CONFIG_SYS_HZ
should be set to 1000 by default. Fix both of these items.
Signed-off-by: Jon Hunter <jon-hunter@ti.com>
Jon Hunter [Tue, 9 Apr 2013 21:41:32 +0000 (16:41 -0500)]
omap5912-osk: Increase flash partition for u-boot
The current u-boot binary needs more than 128KB of flash space and so
move the u-boot environment from an offset of 128KB to 256KB in flash
to ensure the enviroment does not overlap with u-boot.
Signed-off-by: Jon Hunter <jon-hunter@ti.com>
Jon Hunter [Tue, 9 Apr 2013 21:41:31 +0000 (16:41 -0500)]
omap5912-osk: Fix device initialisation
In the current u-boot, the device pin multiplexing and clock
initialisation needs to be early during the boot process and before
board_init() is called. U-boot is currently crashing on this board
because this is not being done early enough. Therefore, add a s_init()
function for the omap5912-osk board to do this.
Also fix the stack pointer so that it is pointing to the end of the
internal RAM and not the beginning as this was also causing the device
to crash.
Signed-off-by: Jon Hunter <jon-hunter@ti.com>
Jon Hunter [Tue, 9 Apr 2013 21:41:30 +0000 (16:41 -0500)]
omap5912-osk: Fix booting from NOR flash
The omap5912-osk board is using a RAM based address as the linker
location for code. This is causing several problems when attempting
to run the latest u-boot code base on this board from flash. Update
the default linker location for code to be in NOR flash at address
0x00000000.
The omap5912-osk board only has 32MB of RAM and so fix the comment
in the omap5912-osk config.mk file as well.
Signed-off-by: Jon Hunter <jon-hunter@ti.com>
Jon Hunter [Tue, 9 Apr 2013 21:41:29 +0000 (16:41 -0500)]
omap5912-osk: Fix DRAM initialisation
The size of the DRAM for the omap5912-osk board is getting setup in the
dram_init() function. However, for the current u-boot release this is
too late and needs to be done in dram_init_banksize(). Therefore, add
a dram_init_banksize() function for the omap5912-osk board and setup the
DRAM size there.
Signed-off-by: Jon Hunter <jon-hunter@ti.com>
Tom Rini [Wed, 10 Apr 2013 19:10:10 +0000 (15:10 -0400)]
omap5_uevm: Correct to 2MiB aligned partitions on eMMC
This has a 2MiB erase block size eMMC, so make sure we align on that for
best possible performance.
Signed-off-by: Tom Rini <trini@ti.com>
Lubomir Popov [Mon, 8 Apr 2013 22:05:33 +0000 (22:05 +0000)]
OMAP4: Fix bug in omap4460_volts struct
The omap4460_volts struct was incorrectly referencing tps62361
instead of twl6030 as PMIC for the core and mm voltages (the
tps is used for mpu supply only). This shall lead to bad OPP
settings while booting kernel. Fixing it.
Fix some comments as well.
Signed-off-by: Lubomir Popov <lpopov@mm-sol.com>
Tom Rini [Wed, 10 Apr 2013 13:10:54 +0000 (15:10 +0200)]
am335x: Update timings for the beaglebone again
After further testing we can run DDR at 400MHz so update the timings
again.
Tested-by: Koen Kooi <koen@dominion.thruhere.net>
Signed-off-by: Tom Rini <trini@ti.com>
Tom Rini [Tue, 9 Apr 2013 15:40:40 +0000 (11:40 -0400)]
am335x/ti814x: Correct MMC_BOOT_DEVICES_START/END
Given that on TI814x we have MMC1/2 swapped, we also need to swap them
in MMC_BOOT_DEVICES_START/END
Reported-by: Peter Korsgaard <jacmet@sunsite.dk>
Signed-off-by: Tom Rini <trini@ti.com>
Tom Rini [Fri, 5 Apr 2013 06:21:46 +0000 (06:21 +0000)]
omap5_common.h: Use fallback CONFIG_SYS_BAUDRATE_TABLE
Cc: Sricharan R <r.sricharan@ti.com>
Signed-off-by: Tom Rini <trini@ti.com>
Tom Rini [Fri, 5 Apr 2013 06:21:45 +0000 (06:21 +0000)]
omap5_uevm.h: Move uEVM-specific choices to omap5_uevm.h
The omap5_uevm platform has eMMC, and it makes sense to say that our
default env storage shall reside there. Other platforms may not, so
move this choice to the EVM config. In addition, we should provide some
way to partition the flash for later usage, so take advantage of the GPT
partition table support code and allow that to be setup with some
reasonable defaults.
Cc: Sricharan R <r.sricharan@ti.com>
Signed-off-by: Tom Rini <trini@ti.com>
Tom Rini [Fri, 5 Apr 2013 06:21:44 +0000 (06:21 +0000)]
OMAP3/4/5/AM33xx: Correct logic for checking FAT or RAW MMC
In the case of booting from certain peripherals, such as UART, we must
not see what the device descriptor says for RAW or FAT mode because in
addition to being nonsensical, it leads to a hang. This is why we have
a test currently for the boot mode being within range. The problem
however is that on some platforms we get MMC2_2 as the boot mode and not
the defined value for MMC2, and in others we get the value for MMC2_2.
This is required to fix eMMC booting on omap5_uevm.
Tested on am335x_evm (UART, NAND, SD), omap3_beagle (NAND, SD on
classic, SD only on xM rev C5) and omap5_uevm (SD, eMMC).
Signed-off-by: Tom Rini <trini@ti.com>
Lokesh Vutla [Thu, 4 Apr 2013 19:51:14 +0000 (19:51 +0000)]
arm: omap4: Fix SDRAM AUTO DETECTION
Commit "
8602114 omap: emif: configure emif only when required"
breaks SDRAM_AUTO_DETECTION.
The issue is dmm_init() depends on emif_sizes[](SDRAM Auto detection)
done in do_sdram_init(). The above commit moves dmm_init() above
do_sdram_init() because of which dmm_init() uses uninitialized
emif_sizes[].
So instead of using global emif_sizes[], get sdram details locally
and calculate emif sizes.
Reported-by: Michael Cashwell <mboards@prograde.net>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Lubomir Popov [Thu, 4 Apr 2013 05:51:45 +0000 (05:51 +0000)]
OMAP: Fix copy-paste bug that did not enable UART4 clock
V2 fixes line wrap issue of the patch itself.
UART3 was enabled twice instead of UART4.
One more cosmetic change in a comment on EMIF clock.
Signed-off-by: Lubomir Popov <lpopov@mm-sol.com>
Reviewed-by: R Sricharan <r.sricharan@ti.com>
Tom Rini [Tue, 2 Apr 2013 07:39:43 +0000 (07:39 +0000)]
doc/feature-removal-schedule.txt: Add CONFIG_SYS_(CLOCKS|PADS)_ENABLE_ALL
We shall remove these OMAP4/5-specific options in v2013.07, barring
insufficient progress on the kernel side.
Cc: Sricharan R <r.sricharan@ti.com>
Signed-off-by: Tom Rini <trini@ti.com>
SRICHARAN R [Thu, 4 Apr 2013 23:39:47 +0000 (23:39 +0000)]
ARM: OMAP4/5: Make bootz as the default boot command
So with OMAP added to multi platform kernel,
the uImage no more contains a valid load address.
With the uboot already supporting zImage,
change the default boot command to bootz
instead.
Acked-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Sricharan R <r.sricharan@ti.com>
Tested-by: Nishanth Menon <nm@ti.com>
SRICHARAN R [Thu, 4 Apr 2013 23:39:27 +0000 (23:39 +0000)]
ARM: OMAP4/5: Change the default boot command to work with device tree
Now with kernel moving to all device tree, the default
boot command is changed to pass the device tree blob.
Also, adding the findfdt command to get the dt-blob
based on the board.
Thanks to Tom Rini <trini@ti.com> for suggesting this.
Signed-off-by: Sricharan R <r.sricharan@ti.com>
Nishanth Menon [Mon, 1 Apr 2013 05:52:40 +0000 (05:52 +0000)]
omap5: Allow use of a plain text env file
For production systems it is better to use script images since
they are protected by checksums and carry valuable information
like name and timestamp. Also, you can't validate the content
passed to env import.
But for development, it is easier to use the env import command and
plain text files instead of script-images.
Since both OMAP5evm/uevm boards are used primarily for development,
we allow U-Boot to load env var from a text file in case that an
boot.scr script-image is not present.
The variable uenvcmd (if existent) will be executed (using run) after
uEnv.txt was loaded. If uenvcmd doesn't exist the default boot sequence
will be started.
Inspired by commit:
d70f54808dfa83b574e1239c3eccbcf3317343e1
(omap4: allow the use of a plain text env file instead boot scripts)
Signed-off-by: Sricharan R <r.sricharan@ti.com>
Signed-off-by: Nishanth Menon <nm@ti.com>
Tested-by: Sricharan R <r.sricharan@ti.com>
SRICHARAN R [Mon, 1 Apr 2013 05:52:39 +0000 (05:52 +0000)]
ARM: OMAP5: Set fdt_high to enable booting with Device tree
While booting with dt blob, if fdt_high is not set to
0xffffffff, the dt blob gets relocated to a high ram address,
which the kernel is not able to use without HIGHMEM.
So set it to 0xffffffff to avoid the issue.
Acked-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Sricharan R <r.sricharan@ti.com>
Tested-by: Nishanth Menon <nm@ti.com>
SRICHARAN R [Mon, 1 Apr 2013 05:52:38 +0000 (05:52 +0000)]
ARM: OMAP5: Rename omap5_evm to omap5_uevm
The omap5-uevm is the reference board name for OMAP5 soc
based platform. So rename it accordingly.
Acked-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Sricharan R <r.sricharan@ti.com>
Tested-by: Nishanth Menon <nm@ti.com>
Hunter, Jon [Wed, 3 Apr 2013 09:35:36 +0000 (09:35 +0000)]
omap2420-h4: Fix get_timer() and CONFIG_SYS_HZ
The function get_timer() should return time in ms and CONFIG_SYS_HZ
should be set to 1000 by default. Fix both of these items.
Signed-off-by: Jon Hunter <jon-hunter@ti.com>
Hunter, Jon [Wed, 3 Apr 2013 09:35:35 +0000 (09:35 +0000)]
omap2420-h4: Add device tree support
Enable device-tree support for the omap2420-h4 board.
Signed-off-by: Jon Hunter <jon-hunter@ti.com>
Hunter, Jon [Wed, 3 Apr 2013 09:35:34 +0000 (09:35 +0000)]
omap2420-h4: Fix booting from NOR flash
The omap2420-h4 board is using a RAM based address as the linker
location for code. This is causing several problems when attempting
to run the latest u-boot code base on this board from flash. Update
the default linker location for code to be in NOR flash. Please note
that OMAP maps the NOR flash to address 0x08000000 by default and so
use this as the default address for the NOR flash.
Also remove legacy code that attempts to calculate where in flash the
sdata structure, that holds the memory interface configuration data,
is located. By changing the default linker location for code to flash
this is no longer necessary.
Signed-off-by: Jon Hunter <jon-hunter@ti.com>
Hunter, Jon [Wed, 3 Apr 2013 09:35:33 +0000 (09:35 +0000)]
omap2420-h4: Fix DRAM initialisation
The size of the DRAM for the omap2420-h4 board is getting setup in the
dram_init() function. However, for the current u-boot release this is
too late and needs to be done in dram_init_banksize(). Therefore, add
a dram_init_banksize() function for the omap2420-h4 board and setup the
DRAM size there.
Signed-off-by: Jon Hunter <jon-hunter@ti.com>
Andreas Bießmann [Tue, 2 Apr 2013 06:05:58 +0000 (06:05 +0000)]
tricorder: enable hw assisted BCH8 in SPL and u-boot
Signed-off-by: Andreas Bießmann <andreas.devel@googlemail.com>
Cc: Tom Rini <trini@ti.com>
Cc: Thomas Weber <weber@corscience.de>
Cc: Ilya Yanok <ilya.yanok@cogentembedded.com>
Cc: Scott Wood <scottwood@freescale.com>
Andreas Bießmann [Fri, 5 Apr 2013 04:55:21 +0000 (04:55 +0000)]
omap_gpmc: add support for hw assisted BCH8
The kernel states:
---8<---
The OMAP3 GPMC hardware BCH engine computes remainder polynomials, it does not
provide automatic error location and correction: this step is implemented using
the BCH library.
--->8---
And we do so in u-boot.
This implementation uses the same layout for BCH8 but it is fix. The current
provided layout does only work with 64 Byte OOB.
Signed-off-by: Andreas Bießmann <andreas.devel@googlemail.com>
Cc: Tom Rini <trini@ti.com>
Cc: Ilya Yanok <ilya.yanok@cogentembedded.com>
Cc: Scott Wood <scottwood@freescale.com>
Cc: Mansoor Ahamed <mansoor.ahamed@ti.com>
Cc: Thomas Weber <thomas.weber.linux@googlemail.com>
Andreas Bießmann [Thu, 4 Apr 2013 23:52:50 +0000 (23:52 +0000)]
omap_gpmc: change nandecc command
With uppcoming BCH support on OMAP devices we need to decide between differnt
algorithms when switching the ECC engine. Currently we support 1-bit hammign
and 8-bit BCH on HW backend.
In order to switch between differnet ECC algorithms we need to change the
interface of omap_nand_switch_ecc() also.
Signed-off-by: Andreas Bießmann <andreas.devel@googlemail.com>
Cc: Tom Rini <trini@ti.com>
Cc: Thomas Weber <thomas.weber.linux@googlemail.com>
Andreas Bießmann [Tue, 2 Apr 2013 06:05:55 +0000 (06:05 +0000)]
omap3/omap_gpmc.h: add ooblayout for BCH8 as in kernel
This patch adds BCH8 ooblayout for NAND as provided by
0e618ef0a6a33cf7ef96c2c824402088dd8ef48c in linux kernel. This Layout is
currently only provided for 64 byte OOB.
Signed-off-by: Andreas Bießmann <andreas.devel@googlemail.com>
Cc: Tom Rini <trini@ti.com>
Cc: Ilya Yanok <ilya.yanok@cogentembedded.com>
Cc: Scott Wood <scottwood@freescale.com>
Reviewed-by: Tom Rini <trini@ti.com>
Andreas Bießmann [Tue, 2 Apr 2013 06:05:54 +0000 (06:05 +0000)]
asm/omap_gpmc.h: consolidate common defines
arch/arm/include/asm/arch-am33xx/omap_gpmc.h and
arch/arm/include/asm/arch-omap3/omap_gpmc.h are almost the same, consolidate
the common parts into a new header.
Introduce a new asm/omap_gpmc.h which defines the command part and pulls in
the architecture specific one.
Signed-off-by: Andreas Bießmann <andreas.devel@googlemail.com>
Cc: Tom Rini <trini@ti.com>
Reviewed-by: Tom Rini <trini@ti.com>
Andreas Bießmann [Tue, 2 Apr 2013 06:05:53 +0000 (06:05 +0000)]
omap3/cpu.h: add BCH support
This patch adds the BCH result registers to register mapping for OMAP3 gpmc.
Signed-off-by: Andreas Bießmann <andreas.devel@googlemail.com>
Cc: Tom Rini <trini@ti.com>
Cc: Ilya Yanok <ilya.yanok@cogentembedded.com>
Cc: Scott Wood <scottwood@freescale.com>
Reviewed-by: Tom Rini <trini@ti.com>
Manfred Huber [Fri, 29 Mar 2013 02:52:36 +0000 (02:52 +0000)]
omap3_beagle: Flush UART3 xmit on enable if TEMT is broken
Flush UART3 xmit on enable if TEMT is broken
On some OMAP3 devices when UART3 is configured for boot mode before SPL starts
only THRE bit is set. We have to empty the transmitter before initialization
starts. This patch avoids the use of CONFIG_SYS_NS16550_BROKEN_TEMT.
Signed-off-by: Manfred Huber <man.huber@arcor.de>
Tested-by: Javier Martinez Canillas <javier@dowhile0.org>
Tested-by: Andreas Bießmann <andreas.devel@googlemail.com>
Tom Rini [Wed, 3 Apr 2013 08:50:01 +0000 (08:50 +0000)]
am335x: Enable MMC1 clock
We must not assume ROM has enabled the clock for MMC1.
Reported-by: Koen Kooi <koen@dominion.thruhere.net>
Signed-off-by: Tom Rini <trini@ti.com>
Acked-by: Peter Korsgaard <jacmet@sunsite.dk>
Lars Poeschel [Wed, 3 Apr 2013 04:37:52 +0000 (04:37 +0000)]
pcm051: Enable DDR PHY dynamic power down bit
This is done already for am335x in
59dcf970d11ebff5d9f4bbbde79fda584e9e7ad4 and also applies for pcm051.
It powers down the IO receiver when not performing read which helps
reducing the overall power consuption in low power states
(suspend/standby).
Signed-off-by: Lars Poeschel <poeschel@lemonage.de>
Bin Liu [Thu, 21 Mar 2013 05:27:49 +0000 (05:27 +0000)]
musb: set MUSB speed based on CONFIG
Do not config MUSB to highspeed mode if CONFIG_USB_GADGET_DUALSPEED
is not set, in which case Ether gadget only operates in fullspeed.
Reviewed-by: Tom Rini <trini@ti.com>
Signed-off-by: Bin Liu <b-liu@ti.com>
Bin Liu [Thu, 21 Mar 2013 05:27:48 +0000 (05:27 +0000)]
musb: am335x: disable bulk split-combine feature
On TI AM335x devices, MUSB has bulk split/combine feature enabled
in the ConfigData register, but the current MUSB driver does not
support it yet. Therefore, disable the feature for now, until the
driver adds the support.
One usecase which is broken because of this feature is that Ether
gadget stops working in Fullspeed mode (by un-defining
CONFIG_USB_GADGET_DUALSPEED)
After desabled this feature, MUSB driver send packets in proper size
(no more than 64 bytes) in Fullspeed mode.
This has been validated with Ether gadget in Fullspeed mode on AM335x
EVM.
Signed-off-by: Bin Liu <b-liu@ti.com>
Josh Wu [Thu, 28 Mar 2013 10:37:49 +0000 (18:37 +0800)]
logo: update to the new logo for ATMEL
Atmel change to new logo since 2012. This patch update the logo to new one.
Signed-off-by: Josh Wu <josh.wu@atmel.com>
Signed-off-by: Andreas Bießmann <andreas.devel@googlemail.com>
Albert ARIBAUD [Thu, 4 Apr 2013 13:44:57 +0000 (15:44 +0200)]
Merge branch 'u-boot-samsung/master' into 'u-boot-arm/master'
Minkyu Kang [Mon, 1 Apr 2013 19:22:40 +0000 (19:22 +0000)]
exynos: change indentation of defines in cpu.h
Fix the indentation of some defines by tab.
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
Albert ARIBAUD [Thu, 4 Apr 2013 09:49:32 +0000 (11:49 +0200)]
Merge branch 'u-boot-imx/master' into 'u-boot-arm/master'
Dirk Behme [Wed, 20 Mar 2013 22:03:44 +0000 (22:03 +0000)]
spi: mxc_spi: Fix ECSPI reset handling
Reviewing the ECSPI reset handling shows two issues:
1. For the enable/reset bit (MXC_CSPICTRL_EN) in the control reg
(ECSPIx_CONGREG) the i.MX6 technical reference manual states:
-- cut --
ECSPIx_CONREG[0]: EN: Writing zero to this bit disables the block
and resets the internal logic with the exception of the ECSPI_CONREG.
-- cut --
Note the exception mentioned: The CONREG itself isn't reset.
Fix this by manually writing the reset value 0 to the whole register.
This sets the EN bit to zero, too (i.e. includes the old
~MXC_CSPICTRL_EN).
2. We want to reset the whole SPI block here. So it makes no sense
to first read the old value of the CONREG and write it back, later.
This will give us the old (historic/random) value of the CONREG back.
And doesn't reset the CONREG.
To get a clean CONREG after the reset of the block, too, don't use
the old (historic/random) value of the CONREG while doing the reset.
And read the clean CONREG after the reset.
This was found while working on a SPI boot device where the i.MX6 boot
ROM has already initialized the SPI block. The initialization by the
boot ROM might be different to what the U-Boot driver wants to configure.
I.e. we need a clean reset of SPI block, including the CONREG.
Signed-off-by: Dirk Behme <dirk.behme@de.bosch.com>
CC: Stefano Babic <sbabic@denx.de>
CC: Fabio Estevam <fabio.estevam@freescale.com>
Stephen Warren [Wed, 27 Mar 2013 18:43:23 +0000 (18:43 +0000)]
ARM: bcm2835: fix get_timer() to return ms
Apparently, CONFIG_SYS_HZ must be 1000. Change this, and fix the timer
driver to conform to this.
Have the timer implementation export a custom API get_timer_us() for use
by the BCM2835 MMC API, which needs us resolution for a HW workaround.
Signed-off-by: Stephen Warren <swarren@wwwdotorg.org>
Javier Martinez Canillas [Tue, 2 Apr 2013 23:57:23 +0000 (23:57 +0000)]
i.MX6: mx6qsabrelite: README: don't pass chip-select to sf probe command
board/freescale/mx6qsabrelite/README explain a procedure to
update the SPI-NOR on the SabreLite board without Freescale
manufacturing tool but following this procedure leads to both
"sf erase" and "sf write" failing on a mx6qsabrelite board:
MX6QSABRELITE U-Boot > sf probe 1
MX6QSABRELITE U-Boot > sf erase 0 0x40000
SPI flash erase failed
MX6QSABRELITE U-Boot > sf write 0x10800000 0 0x40000
SPI flash write failed
This is because the chip-select 1 is wrong and the correct
value is 0x7300.
Since commit
c1173bd0 ("sf command: allow default bus and chip selects")
the chip-select and bus arguments for the sf probe command are optional
so let's just remove it and use "sf probe" instead.
Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Fabio Estevam [Mon, 1 Apr 2013 16:03:38 +0000 (16:03 +0000)]
wandboard: Remove CONFIG_SYS_FSL_USDHC_NUM
CONFIG_SYS_FSL_USDHC_NUM is not used for wandboard.
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Acked-by: Otavio Salvador <otavio@ossystems.com.br>
Fabio Estevam [Mon, 1 Apr 2013 16:03:37 +0000 (16:03 +0000)]
mx6qsabrelite: Remove duplicate 'mmc dev'
No need to call 'mmc dev' twice.
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Acked-by: Otavio Salvador <otavio@ossystems.com.br>
Fabio Estevam [Mon, 1 Apr 2013 16:03:36 +0000 (16:03 +0000)]
wandboard: Remove duplicate 'mmc dev'
No need to call 'mmc dev' twice.
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Acked-by: Otavio Salvador <otavio@ossystems.com.br>
Fabio Estevam [Wed, 27 Mar 2013 07:36:55 +0000 (07:36 +0000)]
mx6: Fix get_board_rev() for the mx6 solo case
When booting a Freescale kernel 3.0.35 on a Wandboard solo, the get_board_rev()
returns 0x62xxx, which is not a value understood by the VPU
(Video Processing Unit) library in the kernel and causes the video playback to
fail.
The expected values for get_board_rev are:
0x63xxx: For mx6quad/dual
0x61xxx: For mx6dual-lite/solo
So adjust get_board_rev() accordingly and make it as weak function, so that we
do not need to define it in every mx6 board file.
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Acked-by: Dirk Behme <dirk.behme@de.bosch.com>
Acked-by: Eric Nelson <eric.nelson@boundarydevices.com>
Alexandre Pereira da Silva [Mon, 25 Mar 2013 18:23:45 +0000 (18:23 +0000)]
mx23_olinuxino: Fix netboot console
The netargs variable was referencing the non-existing variable
console_mainline. Change that to console variable instead.
Signed-off-by: Alexandre Pereira da Silva <aletes.xgr@gmail.com>
Acked-by: Otavio Salvador <otavio@ossystems.com.br>
Abbas Raza [Mon, 25 Mar 2013 09:13:34 +0000 (09:13 +0000)]
mmc: i.MX6: fsl_esdhc: Define maximum bus width supported by a board
Maximum bus width supported by some i.MX6 boards is not 8bit like
others. In case where both host controller and card support 8bit transfers,
they agree to communicate on 8bit interface while some boards support only 4bit interface.
Due to this reason the mmc 8bit default mode fails on these boards. To rectify this,
define maximum bus width supported by these boards (4bit). If max_bus_width is not
defined, it is 0 by default and 8bit width support will be enabled in host
capabilities otherwise host capabilities are modified accordingly.
It is tested with a MMCplus card.
Signed-off-by: Abbas Raza <Abbas_Raza@mentor.com>
cc: stefano Babic <sbabic@denx.de>
cc: Andy Fleming <afleming@gmail.com>
Acked-by: Dirk Behme <dirk.behme@de.bosch.com>
Acked-by: Andrew Gabbasov <andrew_gabbasov@mentor.com>
Otavio Salvador [Sun, 24 Mar 2013 16:17:33 +0000 (16:17 +0000)]
mx23_olinuxino: Change definitions to use spaces instead of tabs
Change all "#define/ifdef<TAB>" sequences into "#define/ifdef<SPACE>".
Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
Benoît Thébaudeau [Fri, 22 Mar 2013 09:30:29 +0000 (09:30 +0000)]
mx25pdk: Enable imxdi RTC
The mx25pdk board supports the i.MX25 DryIce RTC (imxdi), so enable it. This
allows to compile-test the imxdi driver in the mainline tree.
Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com>
Acked-by: Fabio Estevam <fabio.estevam@freescale.com>
Fabio Estevam [Wed, 20 Mar 2013 04:07:58 +0000 (04:07 +0000)]
mx6qsabrelite: README: No need to pass 'u-boot.imx'
The u-boot.imx binary is generated by default, so no need to pass it in the
'make' line.
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Fabio Estevam [Thu, 7 Mar 2013 11:28:19 +0000 (11:28 +0000)]
mx28evk: Introduce a new target for saving env vars to NAND
Introduce 'mx28evk_nand' target for saving environment variables into NAND.
The mx28evk board does not come with a NAND flash populated from the
factory. It comes with an empty slot (U23), which allows the insertion of a
48-pin TSOP flash device.
Tested with a K9LBG08U0D.
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Reviewed-by: Otavio Salvador <otavio@ossystems.com.br>
Otavio Salvador [Sat, 16 Mar 2013 08:05:07 +0000 (08:05 +0000)]
mx6qsabre{sd,auto}: Add boot mode select
Adds support for 'bmode' command which let user to choose where to
boot from; this allows U-Boot to load system from another storage
without messing with jumpers.
Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
Otavio Salvador [Sat, 16 Mar 2013 08:05:06 +0000 (08:05 +0000)]
mx6qsabresd: Fix card detection for invalid card id case
This changes the code so in case an unkown value is passed it will
return as invalid.
Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
Otavio Salvador [Sat, 16 Mar 2013 08:05:05 +0000 (08:05 +0000)]
mx6qsabresd: Document the mapping of USDHC[2-4]
This documents the SD card identifier so it is easier for user to spot
which card number will be used, if need.
Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
Akshay Saraswat [Thu, 28 Mar 2013 04:32:24 +0000 (04:32 +0000)]
Exynos: pwm: Remove dead code of function exynos5_get_pwm_clk
As we shall now be using clock_get_periph_rate function.
We find no reason for keeping code in function exynos5_get_pwm_clk.
Hence, removing it.
Signed-off-by: Akshay Saraswat <akshay.s@samsung.com>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
Padmavathi Venna [Thu, 28 Mar 2013 04:32:23 +0000 (04:32 +0000)]
Exynos: pwm: Use generic api to get pwm clk freq
Use generic api to get the pwm clock frequency
Test with command "sf probe 1:0; time sf read
40008000 0 1000".
Try with different numbers of bytes and see that sane values are obtained
Build and boot U-boot with this patch, backlight works properly.
Signed-off-by: Padmavathi Venna <padma.v@samsung.com>
Signed-off-by: Akshay Saraswat <akshay.s@samsung.com>
Acked-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
Padmavathi Venna [Thu, 28 Mar 2013 04:32:22 +0000 (04:32 +0000)]
Exynos: clock: Correct pwm source clk selection
MPLL is selected as the source clk of pwm by default
Test with command "sf probe 1:0; time sf read
40008000 0 1000".
Try with different numbers of bytes and see that sane values are obtained
Build and boot U-boot with this patch, backlight works properly.
Signed-off-by: Padmavathi Venna <padma.v@samsung.com>
Signed-off-by: Akshay Saraswat <akshay.s@samsung.com>
Acked-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
Padmavathi Venna [Thu, 28 Mar 2013 04:32:21 +0000 (04:32 +0000)]
Exynos: clock: Add generic api to get the clk freq
Add generic api to get the frequency of the required peripherial. This
API gets the source clock frequency and returns the required frequency
by dividing with first and second dividers based on the requirement.
Test with command "sf probe 1:0; time sf read
40008000 0 1000".
Try with different numbers of bytes and see that sane values are obtained
Build and boot U-boot with this patch, backlight works properly.
Signed-off-by: Padmavathi Venna <padma.v@samsung.com>
Signed-off-by: Akshay Saraswat <akshay.s@samsung.com>
Acked-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
Padmavathi Venna [Sun, 31 Mar 2013 18:42:24 +0000 (18:42 +0000)]
Exynos: Add peripherial id for pwm
Add peripherial id for pwm inorder to support
generic api to get the clk frequency
Test with command "sf probe 1:0; time sf read
40008000 0 1000".
Try with different numbers of bytes and see that sane values are obtained
Build and boot U-boot with this patch, backlight works properly.
Signed-off-by: Padmavathi Venna <padma.v@samsung.com>
Signed-off-by: Akshay Saraswat <akshay.s@samsung.com>
Acked-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
Gabe Black [Thu, 28 Mar 2013 04:32:20 +0000 (04:32 +0000)]
Exynos: Tidy up the pwm_config function in the exynos pwm driver
Some small fixes in the exynos pwm driver:
1. NS_IN_HZ is non-sensical since these are not compatible units. This
constant actually describes the number of nanoseconds in a second. Renamed it
to NS_IN_SEC. Also dropped the unnecessary parenthesis.
2. The variable "period" is not used to hold a period, it's used to hold a
frequency. Renamed it to "frequency".
3. tcmp is an unsigned value, so (tcmp < 0) will never be true and the if
which checks that condition will never execute. Also, there should be no
problem if the pwm never switches, so there's no reason to subtract one from
tcmp and therefore no reason to compare it against zero. Removed both ifs. If
they weren't removed, tcmp should be a signed value.
4. Add a check for a 0 period.
Test with command "sf probe 1:0; time sf read
40008000 0 1000".
Try with different numbers of bytes and see that sane values are obtained
Build and boot U-boot with this patch, backlight works properly.
Signed-off-by: Gabe Black <gabeblack@google.com>
Signed-off-by: Akshay Saraswat <akshay.s@samsung.com>
Acked-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
Gabe Black [Thu, 28 Mar 2013 04:32:19 +0000 (04:32 +0000)]
Exynos: Avoid a divide by zero by specifying a non-zero period for pwm 4
The pwm_config function in the exynos pwm driver divides by its period
period parameter. A function was calling pwm_config with a 0ns period and a
0ns duty cycle. That doesn't actually make any sense physically, and results
in a divide by zero in the driver. This change changes the parameters to be a
100000ns period and duty cycle.
Test with command "sf probe 1:0; time sf read
40008000 0 1000".
Try with different numbers of bytes and see that sane values are obtained
Build and boot U-boot with this patch, backlight works properly.
Signed-off-by: Gabe Black <gabeblack@google.com>
Signed-off-by: Akshay Saraswat <akshay.s@samsung.com>
Acked-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
Gabe Black [Thu, 28 Mar 2013 04:32:18 +0000 (04:32 +0000)]
Exynos: pwm: Fix two bugs in the exynos pwm configuration code
First, the "div" value was being used incorrectly to compute the frequency of
the PWM timer. The value passed in is a constant which reflects the value
that would be found in a configuration register, 0 to 4. That should
correspond to a scaling factor of 1, 2, 4, 8, or 16, 1 << div, but div + 1 was
being used instead.
Second, the reset value of the timers were being calculated to give an overall
frequency, thrown out, and set to a maximum value. This was done so that PWM 4
could be used as the system clock by counting down from a high value, but it
was applied indiscriminantly. It should at most be applied only to PWM 4.
This change also takes the opportunity to tidy up the pwm_init function.
Test with command "sf probe 1:0; time sf read
40008000 0 1000".
Try with different numbers of bytes and see that sane values are obtained
Build and boot U-boot with this patch, backlight works properly.
Signed-off-by: Gabe Black <gabeblack@google.com>
Signed-off-by: Akshay Saraswat <akshay.s@samsung.com>
Acked-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>