Tom Rini [Thu, 9 Aug 2012 00:03:10 +0000 (17:03 -0700)]
omap4/5/am33xx: Make lowlevel_init available to all armv7 platforms
Make the lowlevel_init function that these platforms have which just
sets up the stack and calls a C function available to all armv7
platforms. As part of this we change some of the macros that are used
to be more clear. Previously (except for am335x evm) we had been
setting CONFIG_SYS_INIT_SP_ADDR to a series of new defines that are
equivalent to simply referencing NON_SECURE_SRAM_END. On am335x evm we
should have been doing this initially and do now.
Cc: Sricharan R <r.sricharan@ti.com> Tested-by: Allen Martin <amartin@nvidia.com> Signed-off-by: Tom Rini <trini@ti.com>
Tom Rini [Wed, 8 Aug 2012 16:03:07 +0000 (09:03 -0700)]
am335x evm: Initial support for AM335x GP EVM Profiles
The AM335x GP EVM can have one of 8 different profiles selected. Each
profile has a different set of peripherals and requires different pinmux
configurations that conflict with other profiles. i2c1 is an example of
a conflicted mux currently.
Marek Vasut [Fri, 6 Jul 2012 21:25:57 +0000 (21:25 +0000)]
MX28: Fix MXS MMC DMA issues
The DMA didn't work properly because the DMA descriptor wasn't
properly cleaned after it was used once. Also, the DMA_ENABLE bit
was enabled/disabled too late.
Signed-off-by: Marek Vasut <marex@denx.de> Cc: Wolfgang Denk <wd@denx.de> Cc: Stefano Babic <sbabic@denx.de> Cc: Fabio Estevam <festevam@freescale.com> Cc: Andy Fleming <afleming@freescale.com>
Marek Vasut [Fri, 6 Jul 2012 21:25:56 +0000 (21:25 +0000)]
MX28: Transfer small blocks via PIO in MXS MMC
Large blocks (> 512b) shall be transfered via DMA to make
things a bit faster.
Signed-off-by: Marek Vasut <marex@denx.de> Cc: Wolfgang Denk <wd@denx.de> Cc: Stefano Babic <sbabic@denx.de> Cc: Fabio Estevam <festevam@freescale.com> Cc: Andy Fleming <afleming@freescale.com>
Marek Vasut [Fri, 6 Jul 2012 21:25:55 +0000 (21:25 +0000)]
MX28: Split out the PIO and DMA transfer functions
Move DMA and PIO data transfer parts into separate functions.
Signed-off-by: Marek Vasut <marex@denx.de> Cc: Wolfgang Denk <wd@denx.de> Cc: Stefano Babic <sbabic@denx.de> Cc: Fabio Estevam <festevam@freescale.com> Cc: Andy Fleming <afleming@freescale.com>
Marek Vasut [Fri, 6 Jul 2012 21:25:54 +0000 (21:25 +0000)]
MX28: Fix up the MMC driver DMA mode
The DMA mode didn't properly configure the DMA_ENABLE bit in CTRL1.
Also, it was using SSP0 DMA channel for all SSP devices.
Signed-off-by: Marek Vasut <marex@denx.de> Cc: Wolfgang Denk <wd@denx.de> Cc: Stefano Babic <sbabic@denx.de> Cc: Fabio Estevam <festevam@freescale.com> Cc: Andy Fleming <afleming@freescale.com>
Otavio Salvador [Sat, 28 Jul 2012 11:44:20 +0000 (11:44 +0000)]
MX28: use a clear name for DDR2 initialization
The mx28 prefix has been added to the initialization data and function
so it is clear by which SoC it is used as i.MX233 will have a specific
one. While on that, we also change it to static.
Signed-off-by: Otavio Salvador <otavio@ossystems.com.br> Acked-by: Marek Vasut <marex@denx.de>
This adds support for Bluegiga APX4 Development Kit. It is built around
Freescale i.MX28. Currently supported features are: ethernet, I2C, MMC,
RTC and USB. APX4 has only one ethernet port.
Marek Vasut [Mon, 9 Jul 2012 00:48:33 +0000 (00:48 +0000)]
MX28: SPI: Add DMA transfer support
The DMA transfers happen only if the transfered data are larger
than 512 bytes. Otherwise PIO is used. This is a small speed
optimization.
The DMA transfer doesn't work if unaligned transfer is requested
due to the limitation of the DMA controller. This has to be fixed
by introducing generic bounce buffer. Therefore the DMA feature
is now disabled by default.
Signed-off-by: Marek Vasut <marex@denx.de> Cc: Fabio Estevam <festevam@gmail.com> Cc: Otavio Salvador <otavio@ossystems.com.br> Cc: Stefano Babic <sbabic@denx.de> Cc: Wolfgang Denk <wd@denx.de>
Marek Vasut [Mon, 9 Jul 2012 00:48:32 +0000 (00:48 +0000)]
MX28: SPI: Pull out the PIO transfer function
Pull out all the PIO transfer logic into separate function,
so DMA can be added.
Signed-off-by: Marek Vasut <marex@denx.de> Cc: Fabio Estevam <festevam@gmail.com> Cc: Otavio Salvador <otavio@ossystems.com.br> Cc: Stefano Babic <sbabic@denx.de> Cc: Wolfgang Denk <wd@denx.de>
Marek Vasut [Mon, 9 Jul 2012 00:48:31 +0000 (00:48 +0000)]
MX28: SPI: Refactor spi_xfer a bit
This makes it easier to adapt for addition of DMA support.
Signed-off-by: Marek Vasut <marex@denx.de> Cc: Fabio Estevam <festevam@gmail.com> Cc: Otavio Salvador <otavio@ossystems.com.br> Cc: Stefano Babic <sbabic@denx.de> Cc: Wolfgang Denk <wd@denx.de>
Markus Hubig [Tue, 7 Aug 2012 15:43:23 +0000 (17:43 +0200)]
at91: Add support for taskit AT91SAM9G20 boards.
This adds support for the AT91SAM9G20 boards by taskit GmbH.
Both boards, Stamp9G20 and PortuxG20, are integrated in one
file. PortuxG20 is basically a SBC built around the Stamp9G20.
Signed-off-by: Markus Hubig <mhubig@imko.de> Cc: Andreas Bießmann <andreas.devel@googlemail.com> Signed-off-by: Andreas Bießmann <andreas.deve@googlemail.com>
Markus Hubig [Tue, 7 Aug 2012 15:43:22 +0000 (17:43 +0200)]
Enable the EMAC clock in at91_macb_hw_init().
Signed-off-by: Markus Hubig <mhubig@imko.de> Cc: Andreas Bießmann <andreas.devel@googlemail.com> Signed-off-by: Andreas Bießmann <andreas.devel@googlemail.com>
For the DA8xx family of SoCs, the set_cpu_clk_info() function was not
initialising the DSP frequency, leading to 'bdinfo' command output such as:
[...snip...]
ARM frequency = 300 MHz
DSP frequency = -536870913 MHz
DDR frequency = 300 MHz
This commit provides a separate implementation of set_cpu_clk_info() for
the DA8xx SoCs that initialises the DSP frequency to zero (since
currently the DSP is not enabled by U-Boot on any DA8xx platform). The
separate implementation is justified because there is no common code
between DA8xx and the other SoC families. It is now much easier to
understand the flow of the two separate functions.
Replace a magic number for the DDR2/mDDR PHY clock ID with a proper
definition. In addition, don't request this clock ID on DA830 hardware,
which does not have a DDR2/mDDR PHY (or associated PLL controller).
On the DA830, UART2's clock is derived from PLL controller 0 output 2.
On the DA850, it is in the ASYNC3 group, and may be switched between PLL
controller 0 or 1. Fix the definition of the ID to match.
Tidy up the clock IDs defined for the DA8xx SOCs. With this new structure in
place, it is clear how to define new clock IDs, and how these map to the
numbers presented in the technical reference manual.
Signed-off-by: Laurence Withers <lwithers@guralp.com> Cc: Tom Rini <trini@ti.com> Cc: Prabhakar Lad <prabhakar.csengg@gmail.com> Signed-off-by: Tom Rini <trini@ti.com>
Marek Vasut [Sat, 21 Jul 2012 05:02:23 +0000 (05:02 +0000)]
dm: Move OMAP GPIO driver to drivers/gpio/
Signed-off-by: Marek Vasut <marex@denx.de> Cc: Wolfgang Denk <wd@denx.de> Cc: Albert Aribaud <albert.u.boot@aribaud.net> Cc: U-Boot DM <u-boot-dm@lists.denx.de> Cc: Tom Rini <trini@ti.com> Acked-by: Tom Rini <trini@ti.com> Signed-off-by: Tom Rini <trini@ti.com>
Marek Vasut [Sat, 21 Jul 2012 05:02:27 +0000 (05:02 +0000)]
dm: Select CONFIG_SPL_GPIO_SUPPORT on OMAP
This fixes the breakage with SPL on most OMAP boards after the GPIO
driver was moved.
Signed-off-by: Marek Vasut <marex@denx.de> Cc: Wolfgang Denk <wd@denx.de> Cc: Albert Aribaud <albert.u.boot@aribaud.net> Cc: U-Boot DM <u-boot-dm@lists.denx.de> Cc: Tom Rini <trini@ti.com> Acked-by: Tom Rini <trini@ti.com> Signed-off-by: Tom Rini <trini@ti.com>
Tom Rini [Tue, 31 Jul 2012 17:50:01 +0000 (10:50 -0700)]
am33xx: Rework pinmux functions
- Move definition of the EEPROM contents to <asm/arch/sys_proto.h>
- Make some defines a little less generic now.
- Pinmux must be done by done by SPL now.
- Create 3 pinmux functions, uart0, i2c0 and board.
- Add pinmux specific to Starter Kit EVM for MMC now.
Tom Rini [Tue, 31 Jul 2012 15:55:01 +0000 (08:55 -0700)]
am33xx: Add support for TI AM335x StarterKit EVM
- Board requires gpio0 #7 to be set to power DDR3.
- Board uses DDR3, add a way to determine which DDR type to call
config_ddr with.
- Both of the above require filling in the header structure early, move
it into the data section.
Tom Rini [Mon, 30 Jul 2012 23:13:10 +0000 (16:13 -0700)]
am33xx: Remove board/ti/am335x/evm.c
The intention has always been (and boards are to support) an i2c EEPROM
that will identify what hardware they are, allowing a single binary to
support multiple boards. As such, remove the 'evm.c' file as there is
nothing EVM centric in it currently, only SoC peripheral configuration.
Tom Rini [Mon, 30 Jul 2012 21:13:56 +0000 (14:13 -0700)]
am33xx: Rework config_ddr to make DDR3 support easier.
In order to support DDR3 as well as DDR2, we need to perform the same
init sequence, but with different values. So change config_ddr() to
toggle setting pointers/etc for what DDR2 wants, and then calling.
Tom Rini [Mon, 30 Jul 2012 18:49:47 +0000 (11:49 -0700)]
am33xx: Correct and clean up ddr_regs struct
The ddr_regs struct was incorrectly offset after the dt0wiratio0 entry.
Correct this by documenting a missing register that will be used at some
point in the future (when write leveling is supported). Further, the
cmdNcs{force,delay} fields are undocumented and we have been setting
them to zero, remove. Next, setting of the
'DATAn_REG_PHY_USE_RANK0_DELAYS field belongs with the rest of the
ddr_data entries, so program it there. Finally, comment on how we are
configuring the DATA1 registers that correspond to the DATA0 (dt0)
registers defined in the struct.
Tom Rini [Tue, 24 Jul 2012 23:49:58 +0000 (16:49 -0700)]
am33xx: Do not touch 'ratio1' fields
The various ratio1 fields are not documented in any of the documentation
I can find. Removing these and testing has yielded success, so remove
the code that sets them and move their locations into the reserved
fields.
Tom Rini [Tue, 24 Jul 2012 23:31:26 +0000 (16:31 -0700)]
am33xx: Rework config_io_ctrl slightly
This function sets a number of related registers to the same value (the
registers in question all have the same field descriptions and are
related in operation). Rather than defining a struct and setting the
value repeatedly, just pass in the value.
Tom Rini [Tue, 24 Jul 2012 21:54:41 +0000 (14:54 -0700)]
am33xx: Turn a number of 'int' functions to 'void'
A number of memory initalization functions were int and always returned
0. Further it's not feasible to be doing error checking here, so simply
turn them into void functions.
Tom Rini [Tue, 24 Jul 2012 21:03:24 +0000 (14:03 -0700)]
am33xx: Document what we're doing with ddrctrl->ddrckectrl
- Remove the call to set ddrctrl->ddrioctrl as it's all zeros.
- Comment what we're really setting in ddrctrl->ddrckectrl which is that
we're operating in the normal mode where EMIF/PHY clock is controlled
by the PHY.
EMIF parameters are calculated based on the AC timing
parameters from the SDRAM datasheet and the DDR frequency.
Current values for these paramters in AM335x U-Boot code,
though reliable, are not fully optimal. The most optimal
settings can be derived based on the guidelines published
at [1]. A pre-computed set of values with the most optimum
settings for AM335x EVM and BeagleBone can be found at [2].
Tom Rini [Tue, 3 Jul 2012 16:20:06 +0000 (09:20 -0700)]
am33xx: Move the call to ddr_pll_config, make it take the frequency
Depending on if we have DDR2 or DDR3 on the board we will need to call
ddr_pll_config with a different value. This call can be delayed
slightly to the point where we know which type of memory we have.
Tom Rini [Tue, 3 Jul 2012 15:51:34 +0000 (08:51 -0700)]
am33xx: Pass to config_ddr the type of memory that is connected
We need to pass in the type of memory that is connected to the board.
The only reliable way to do this is to know what type of board we are
running on (which later will be knowable in s_init()). For now, pass in
the value of DDR2.
Tom Rini [Tue, 3 Jul 2012 15:48:46 +0000 (08:48 -0700)]
am33xx: Make config_cmd_ctrl / config_ddr_data take const structs
Rework the EMIF4/DDR code slightly to setup the structs that
config_cmd_ctrl and config_ddr_data take to be setup at compile time and
mark them as const. This lets us simplify the calling path slightly as
well as making it easier to deal with DDR3.
Tom Rini [Tue, 12 Jun 2012 21:54:32 +0000 (14:54 -0700)]
am335x_evm: Update config for common usage
- Add default commands
- Add HUSH parser
- Make environment, malloc areas larger
- Add ATAGS and OF_LIBFDT
- Add defaults to boot ramdisk and MMC, use uEnv.txt
This patch adds board-specific initialization for CPSW on
TI AM335X based boards. Tested on BeagleBone.
Signed-off-by: Chandan Nath <chandan.nath@ti.com>
[Ilya: split board-specific part into separate patch] Signed-off-by: Ilya Yanok <ilya.yanok@cogentembedded.com>
Read the on-board EEPROM during startup to detect the version
of the board we are running on (as for now only BeagleBone vs
EVM detection is supported).
CPSW is an on-chip ethernet switch that is found on various SoCs from Texas
Instruments. This patch adds a simple driver (based on the Linux driver) for
this hardware module.
This patch also adds support to clean and flush dcache during packet send
and receive.
Changes by Sandhya: Added support to clean and flush dcache during packet
send/receive and added timeouts.
Signed-off-by: Cyril Chemparathy <cyril@ti.com> Signed-off-by: Chandan Nath <chandan.nath@ti.com> Signed-off-by: Satyanarayana, Sandhya <sandhya.satyanarayana@ti.com>
[Ilya: Cleaned cache handling, some style cleanup, some small
fixes, use of internal RAM for descriptors] Signed-off-by: Ilya Yanok <ilya.yanok@cogentembedded.com>
Albert ARIBAUD [Fri, 20 Jul 2012 06:51:26 +0000 (08:51 +0200)]
Revert "arm: armv7: add compile option -mno-unaligned-access if available"
This reverts commit 5347560f5427bcdd48a563b62180481606ac8044,
which was applied only to get release 2012.07 functional on as
many ARM targets as possible despite mis-aligned accesses.
omap2plus_defconfig now has built-in compile support for EXT4 enabled
by default now. So, we can use EXT4 as the default root file system
type for MMC.
Signed-off-by: Javier Martinez Canillas <javier@dowhile0.org> Acked-by: Enric Balletbo i Serra <eballetbo@gmail.com>
An OMAP specific serial driver was merged on the Linux kenel a long
time ago. So, it makes sense to default the console name to OMAP
ttyO instead of the generic ttyS naming.
Signed-off-by: Javier Martinez Canillas <javier@dowhile0.org> Acked-by: Enric Balletbo i Serra <eballetbo@gmail.com>
Lad, Prabhakar [Sun, 24 Jun 2012 21:35:21 +0000 (21:35 +0000)]
da850/omap-l138: Fix NAND flash timings
Though Commit id a3f88293ddd13facd734769c1664d35ab4ed681f (da850evm:
setup the NAND flash timings) has configured the AEMIF timings, they
are not exactly in sync with the timings used in Linux. Linux is
configuring the timing register as 0x08222204, where as currently it
configured to 0x00100084 in U-Boot. This issue was found out when
support for NAND SPL is added in U-Boot. Without this patch U-Boot
does not come up with SPL.
Lad, Prabhakar [Sun, 24 Jun 2012 21:35:20 +0000 (21:35 +0000)]
da850/omap-l138: Add support to read u-boot image from MMC/SD
DA850/OMAP-L138 does not support strict MMC/SD boot mode. SPL will
be in SPI flash and U-Boot image will be in MMC/SD card. SPL will
do the low level initialization and then loads the u-boot image
from MMC/SD card.
Define CONFIG_SPL_MMC_LOAD macro in the DA850/OMAP-L138
configuration file to enable this feature.
da850/omap-l138: Make MMC and NOR support mutually exclusive
On Logic PD Rev.3 DA850/OMAP-L138 EVM, NOR and MMC/SD cannot
work together. This patch enables the MMC/SD support only
when NOR support is disabled. NOR Flash identification works
even without this patch, but erase and write will have issues.
projects / u-boot / log