Following ARM's reference manuel for initializing the cache - the
kernel won't boot otherwise.
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: John Rigby <john.rigby@linaro.org>
Some CPU (i.e u8500) need more cache management before launching
the Linux kernel.
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: John Rigby <john.rigby@linaro.org>
Register mapping has changed on power control chip between
the first and second revision.
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: John Rigby <john.rigby@linaro.org>
Signed-off-by: Tom Rini <trini@ti.com>
Functions such as providing power to the MMC device and reading
the processor version register should be in the cpu area for
access by multiple u8500-based boards.
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: John Rigby <john.rigby@linaro.org>
Signed-off-by: Tom Rini <trini@ti.com>
LAN and GBF need to be powered explicitely, doing so with
interface to AB8500 companion chip.
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: John Rigby <john.rigby@linaro.org>
Addresses between ux500.v1 and ux500.v2 have changed slightly,
hence mandating a review of the PRCMU access methods.
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: John Rigby <john.rigby@linaro.org>
Enabling timers and clocks in PRCMU and cleaning up mailbox.
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: John Rigby <john.rigby@linaro.org>
This is to allow the prcmu functions to be used by multiple
u8500-based processors.
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: John Rigby <john.rigby@linaro.org>
We can safely use the same reset code written in C for both Davinci and
C6X platforms. In addition the C version of the code is marginally
smaller on Davinci.
Tested-by: Matt Porter <mporter@ti.com>
Signed-off-by: Tom Rini <trini@ti.com>
This patch updates secure_emif_sdram_config with the
same value written to sdram_config during ddr3 initialization.
During suspend/resume, this value is copied into sdram_config.
With this, a write to sdram_config at the end of resume sequence
which triggers an init sequence can be avoided.
Without this register write in place, the DDR_RESET line goes
low for a few cycles during resume which is a violation of the
JEDEC spec.
Signed-off-by: Satyanarayana, Sandhya <sandhya.satyanarayana@ti.com>
Also enable the ohci port on hawkboard. These additions result in an
increased u-boot size -- adjust the same accordingly in the board's
config.
Move the usb header for da8xx platforms under arch-davinci.
Signed-off-by: Sughosh Ganu <urwithsughosh@gmail.com>
Make sure that when we setup the stack before calling s_init() we have
the stack have 8-byte alignment for ABI compliance.
Tested-by: Allen Martin <amartin@nvidia.com>
Signed-off-by: Tom Rini <trini@ti.com>
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>
- Correct the MMC1 base offset
- Remove MMC2 (that area is reserved and not MMC2).
- Add the real BOOT_DEVICE_MMC2 value
Signed-off-by: Tom Rini <trini@ti.com>
This gets us rid of duplication of the same file.
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Stefano Babic <sbabic@denx.de>
Acked-by: Stefano Babic <sbabic@denx.de>
If VDDIO has a brownout, then the VDD5V_GT_VDDIO becomes unreliable
but this wasn't clear on code so a comment has been added to clarify
it.
Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
As the register accessing mode is the same for all i.MXS SoCs we ought
to use 'mxs' prefix intead of 'mx28'.
Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
Most code can be shared between i.MX23 and i.MX28 as both are from
i.MXS family; this source directory structure makes easy to share code
among them.
Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
Acked-by: Stefano Babic <sbabic@denx.de>
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>
The information now is gathered from HW_DIGCTL_CHIPID register and
includes the chip modem and revision on the output.
Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
In case an unidentified CPU type is detected it now returns
i.MX??, in a const char.
Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
Cc: Marek Vasut <marex@denx.de>
Cc: Stefano Babic <sbabic@denx.de>
Cc: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Markus Hubig <mhubig@imko.de>
Cc: Andreas Bießmann <andreas.devel@googlemail.com>
Signed-off-by: Andreas Bießmann <andreas.devel@googlemail.com>
Add at91sam9x5ek board support, this board support the following SoCs
AT91SAM9G15, AT91SAM9G25, AT91SAM9G35, AT91SAM9X25, AT91SAM9X35
Using at91sam9x5ek_nandflash to configure for the board
Now only supports NAND with software ECC boot up
Signed-off-by: Bo Shen <voice.shen@atmel.com>
[move MAINTAINERS entry to right place]
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.
Signed-off-by: Laurence Withers <lwithers@guralp.com>
Cc: Tom Rini <trini@ti.com>
Cc: Hadli, Manjunath <manjunath.hadli@ti.com>
Cc: Heiko Schocher <hs@denx.de>
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).
Signed-off-by: Laurence Withers <lwithers@guralp.com>
Cc: Tom Rini <trini@ti.com>
Cc: Prabhakar Lad <prabhakar.csengg@gmail.com>
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.
Signed-off-by: Laurence Withers <lwithers@guralp.com>
Cc: Tom Rini <trini@ti.com>
Cc: Prabhakar Lad <prabhakar.csengg@gmail.com>
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>
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>
- 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.
Signed-off-by: Tom Rini <trini@ti.com>
- 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.
Signed-off-by: Tom Rini <trini@ti.com>
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.
Signed-off-by: Tom Rini <trini@ti.com>
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.
Signed-off-by: Tom Rini <trini@ti.com>
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.
Signed-off-by: Tom Rini <trini@ti.com>
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.
Signed-off-by: Tom Rini <trini@ti.com>
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.
Signed-off-by: Tom Rini <trini@ti.com>
Rather than defining our own structs to note what to use when
programming the EMIF and related re-use the emif_regs struct.
Signed-off-by: Tom Rini <trini@ti.com>
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.
Signed-off-by: Tom Rini <trini@ti.com>
- 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.
Signed-off-by: Tom Rini <trini@ti.com>
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].
[1] http://processors.wiki.ti.com/index.php/AM335x_EMIF_Configuration_tips
[2] http://processors.wiki.ti.com/index.php/OMAP_and_Sitara_CCS_support#AM335x
Signed-off-by: Vaibhav Bedia <vaibhav.bedia@ti.com>
Signed-off-by: Tom Rini <trini@ti.com>
