A short loop including a DMB instruction might cause a denial of
service on another processor which executes a CP15 broadcast operation.
Exists on r1, r2, r3, r4 revisions.
Signed-off-by: Nitin Garg <nitin.garg@freescale.com>
Acked-by: Dirk Behme <dirk.behme@de.bosch.com>
Clock Manager driver will be called to reconfigure all the
clocks setting based on user input. The input are passed to
Preloader through handoff files
Signed-off-by: Chin Liang See <clsee@altera.com>
Cc: Albert Aribaud <albert.u.boot@aribaud.net>
Cc: Tom Rini <trini@ti.com>
Cc: Wolfgang Denk <wd@denx.de>
CC: Pavel Machek <pavel@denx.de>
Cc: Dinh Nguyen <dinguyen@altera.com>
Acked-by: Pavel Machek <pavel@denx.de>
U-Boot has supported two kinds of asm-offsets.h.
One is generic for all architectures and its source is located at
./lib/asm-offsets.c.
The other is SoC specific and its source is under SoC directory.
The problem here is that only boards with SoC directory can use
the asm-offsets infrastructure.
Putting asm-offsets.c right under CPU directory does not work.
Now a new demand is coming. PowerPC folks want to use asm-offsets.
But no PowerPC boards have SoC directory.
It seems inconsistent that some boards add asm-offsets.c to SoC
directoreis and some to CPU directories.
It looks more reasonable to put asm-offsets.c under arch/$(ARCH)/lib.
This commit merges asm-offsets.c under SoC directories into
arch/$(ARCH)/lib/asm-offsets.c.
By the way, I doubt the necessity of some entries in asm-offsets.c.
I am leaving refactoring to the board maintainers.
Please check "TODO" in the comment blocks in
arch/{arm,nds32}/lib/asm-offsets.c.
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Cc: Yuantian Tang <Yuantian.Tang@freescale.com>
Squash these warnings in pinmux.c found with GCC 4.8:
/arch/arm/cpu/armv7/exynos/pinmux.c: In function 'exynos_pinmux_config':
/arch/arm/cpu/armv7/exynos/pinmux.c:687:28: warning: 'count' may be used uninitialized in this function [-Wmaybe-uninitialized]
for (i = start; i < start + count; i++) {
^
/arch/arm/cpu/armv7/exynos/pinmux.c:663:16: note: 'count' was declared here
int i, start, count;
^
/arch/arm/cpu/armv7/exynos/pinmux.c:687:28: warning: 'start' may be used uninitialized in this function [-Wmaybe-uninitialized]
for (i = start; i < start + count; i++) {
^
/arch/arm/cpu/armv7/exynos/pinmux.c:663:9: note: 'start' was declared here
int i, start, count;
^
/arch/arm/cpu/armv7/exynos/pinmux.c:689:19: warning: 'bank' may be used uninitialized in this function [-Wmaybe-uninitialized]
s5p_gpio_cfg_pin(bank, i, GPIO_FUNC(0x2));
^
/arch/arm/cpu/armv7/exynos/pinmux.c:662:24: note: 'bank' was declared here
struct s5p_gpio_bank *bank;
^
/arch/arm/cpu/armv7/exynos/pinmux.c: In function 'exynos_pinmux_config':
/arch/arm/cpu/armv7/exynos/pinmux.c:687:28: warning: 'count' may be used uninitialized in this function [-Wmaybe-uninitialized]
for (i = start; i < start + count; i++) {
^
/arch/arm/cpu/armv7/exynos/pinmux.c:663:16: note: 'count' was declared here
int i, start, count;
^
/arch/arm/cpu/armv7/exynos/pinmux.c:687:28: warning: 'start' may be used uninitialized in this function [-Wmaybe-uninitialized]
for (i = start; i < start + count; i++) {
^
/arch/arm/cpu/armv7/exynos/pinmux.c:663:9: note: 'start' was declared here
int i, start, count;
^
/arch/arm/cpu/armv7/exynos/pinmux.c:689:19: warning: 'bank' may be used uninitialized in this function [-Wmaybe-uninitialized]
s5p_gpio_cfg_pin(bank, i, GPIO_FUNC(0x2));
^
/arch/arm/cpu/armv7/exynos/pinmux.c:662:24: note: 'bank' was declared here
struct s5p_gpio_bank *bank;
^
Note that the warning is bogus, the function can never be called with invalid
'peripheral' argument. GCC just cannot analyze this.
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Naveen Krishna Chatradhi <ch.naveen@samsung.com>
Cc: Akshay Saraswat <akshay.s@samsung.com>
Cc: Simon Glass <sjg@chromium.org>
Cc: Tom Rini <trini@ti.com>
Acked-by: Simon Glass <sjg@chromium.org>
Acked-by: Rajeshwari S Shinde <rajeshwari.s@samsung.com>
Signed-off-by: Lukasz Majewski <l.majewski@samsung.com>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
The s_init function is only called on SPL or XIP cases, so lets only
build it for them. This makes the #if logic within the function a bit
clearer as to when we are or are not calling things, and makes it easier
to see that for example preloader_console_init isn't ever called in the
non-XIP full U-Boot case.
Signed-off-by: Tom Rini <trini@ti.com>
This patch adds api to decode peripheral id based on interrupt number.
Signed-off-by: Piotr Wilczek <p.wilczek@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
Copied from Linux sources "include/linux/sizes.h" commit
413541dd66d51f791a0b169d9b9014e4f56be13c
Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
Cc: Vineet Gupta <vgupta@synopsys.com>
Cc: Tom Rini <trini@ti.com>
Cc: Stefan Roese <sr@denx.de>
Cc: Albert Aribaud <albert.u.boot@aribaud.net>
Acked-by: Tom Rini <trini@ti.com>
Acked-by: Stefan Roese <sr@denx.de>
[trini: Add bcm Kona platforms to the patch]
Signed-off-by: Tom Rini <trini@ti.com>
The bit DDR3_RST_DEF_VAL inside CTRL_DDR_IO represents the default value
of the ddr reset value for DDR3 before the EMIF takes over. We must have
this bit set high so that on exit from DeepSleep0 within the kernel the
reset line has the proper value.
Signed-off-by: Dave Gerlach <d-gerlach@ti.com>
The register secure_emif_sdram_config in control module is copied to
the EMIF sdram_config register when it is coming out of DeepSleep0 in
order to ensure that the EMIF comes up for the correct type of DDR.
Without this, resume can hang from within the kernel.
Signed-off-by: Dave Gerlach <d-gerlach@ti.com>
Per a suggestion from the hardware team, program the emif_pwr_mgmt_ctrl
and emif_pwr_mgmt_ctrl_shdw registers within the EMIF to hold the
desired delay in cycles that the EMIF waits without an access to enter
self-refresh, in this case 8192 cycles. With this, code desiring to
enter self refresh only has to toggle one bit to enable it.
Signed-off-by: Dave Gerlach <d-gerlach@ti.com>
When we tell the compiler to optimize for ARMv7 (and ARMv6 for that
matter) it assumes a default of SCTRL.A being cleared and unaligned
accesses being allowed and fast at the hardware level. We set this bit
and must pass along -mno-unaligned-access so that the compiler will
still breakdown accesses and not trigger a data abort.
To better help understand the requirements of the project with respect
to unaligned memory access, the
Documentation/unaligned-memory-access.txt file has been added as
doc/README.unaligned-memory-access.txt and is taken from the v3.14-rc1
tag of the kernel.
Cc: Albert ARIBAUD <albert.u.boot@aribaud.net>
Cc: Mans Rullgard <mans@mansr.com>
Signed-off-by: Tom Rini <trini@ti.com>
Remove the last uses of symbol offsets in ARM U-Boot.
Remove some needless uses of _TEXT_BASE.
Remove all _TEXT_BASE definitions.
Signed-off-by: Albert ARIBAUD <albert.u.boot@aribaud.net>
This prevents references to _end from generating absolute
relocation records.
This change is binary invariant for ARM targets.
Signed-off-by: Albert ARIBAUD <albert.u.boot@aribaud.net>
arch/arm/cpu/armv7/omap-common/config.mk is never included
because "omap-common" is not SoC name.
If we want to add OMAP-specific compiler flags,
they must be added to omap3/config.mk, omap4/config.mk, omap5/config.mk.
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Cc: Tom Rini <trini@ti.com>
This commit avoids generating ./SPL twice.
- Fist time descending to spl/
- Second time as a prerequisite of u-boot-with-spl.imx,
u-boot-with-nand-spl.imx.
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Add bcm281xx architecture support code including a clock framework and
chip reset. Define register block base addresses for the bcm281xx
architecture and create an empty gpio header file required when
CONFIG_CMD_GPIO is set.
Signed-off-by: Darwin Rambo <drambo@broadcom.com>
Reviewed-by: Steve Rae <srae@broadcom.com>
Reviewed-by: Tim Kryger <tkryger@linaro.org>
The Kona architecture is present on a number of Broadcom mobile SoCs
including the bcm281xx family of chips.
Signed-off-by: Darwin Rambo <drambo@broadcom.com>
Reviewed-by: Steve Rae <srae@broadcom.com>
Reviewed-by: Tim Kryger <tkryger@linaro.org>
The function pll_sigma_delta_val uses "float" data which is not correct.
The exact "why" of this mangling is lost to history, but this changes us
to equivalent non-FP math to get the same results.
Reported-by: Wolfgang Denk <wd@denx.de>
Acked-by: Matt Porter <mporter@linaro.org>
commit 194dd74ad9
(DRA7: add ABB setup for MPU voltage domain)
Made an offset typo error by using 0x4A003B24 as the efuse offset
for OPP_NOM. As per TI documentation, 0x4A003B24 is for OPP_OD, and
0x4A003B20 is for OPP_NOM. Fix the same.
Reported-by: Praveen Rao <prao@ti.com>
Signed-off-by: Nishanth Menon <nm@ti.com>
Schematic indicates GPIO5_7 is to be used for VTT regulator control
rather than GPIO0_21 so modify enable_vtt_regulator to reflect this.
Without this some boards will experience DDR3 corruption and fail to
boot.
Signed-off-by: Dave Gerlach <d-gerlach@ti.com>
[trini: Rework patch against mainline]
Signed-off-by: Tom Rini <trini@ti.com>
Conflicts:
Makefile
drivers/net/npe/Makefile
These two conflicts arise from commit 0b2d3f20
("ARM: NET: Remove the IXP NPE ethernet driver") and are
resolved by deleting the drivers/net/npe/Makefile file
and removing the CONFIG_IXP4XX_NPE line from Makefile.
In Kbuild, every makefile must have non-empty obj- or obj-y.
Otherwise, built-in.o will not be created and the link stage
will fail.
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
- When CONFIG_DISPLAY_CPUINFO is not enabled,
print_cpuinfo() should be defined as an empty function
in a header, include/common.h
- Remove #ifdef CONFIG_DISPLAY_CPUINFO .. #endif
from caller, common/board_f.c and arch/arm/lib/board.c
- Remove redundant prototypes in arch/arm/lib/board.c,
arch/arm/include/asm/arch-am33x/sys_proto.h and
board/nokia/rx51/rx51.h, keeping the one in include/common.h
- Add #ifdef CONFIG_DISPLAY_CPUINFO to the func definition
where it is missing
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
We are going to switch over to Kbuild in upcoming commits.
Each makefile must have non-empty obj- or obj-y
to generate built-in.o on Kbuild.
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
This commit changes the working directory
where the build process occurs.
Before this commit, build process occurred under the source
tree for both in-tree and out-of-tree build.
That's why we needed to add $(obj) prefix to all generated
files in makefiles like follows:
$(obj)u-boot.bin: $(obj)u-boot
Here, $(obj) is empty for in-tree build, whereas it points
to the output directory for out-of-tree build.
And our old build system changes the current working directory
with "make -C <sub-dir>" syntax when descending into the
sub-directories.
On the other hand, Kbuild uses a different idea
to handle out-of-tree build and directory descending.
The build process of Kbuild always occurs under the output tree.
When "O=dir/to/store/output/files" is given, the build system
changes the current working directory to that directory and
restarts the make.
Kbuild uses "make -f $(srctree)/scripts/Makefile.build obj=<sub-dir>"
syntax for descending into sub-directories.
(We can write it like "make $(obj)=<sub-dir>" with a shorthand.)
This means the current working directory is always the top
of the output directory.
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Tested-by: Gerhard Sittig <gsi@denx.de>
Add the SATA boot support for OMAP5 and dra7xx.
Renamed the omap_sata_init to the common init_sata(int dev)
for commonality in with sata stack.
Added the ROM boot device ID for SATA.
Signed-off-by: Dan Murphy <dmurphy@ti.com>
Reviewed-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Tom Rini <trini@ti.com>
Typecast the argument with unsigned long long
for proper calculation of lldiv
Signed-off-by: Siva Durga Prasad Paladugu <sivadur@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
SPL is using ps7_init.c/h files which are generated
from design tools which have to be copied to
boards/xilinx/zynq folder before compilation.
BSS section is moved to SDRAM because fat support
requires more space than SRAM size.
Added:
- MMC and QSPI support
- Boot OS directly from SPL
- Enable SPL command
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Reviewed-by: Tom Rini <trini@ti.com>
Remove hard coded clock divider setting and use the Zynq clock framework
to dynamically calculate appropriate dividers at run time.
Signed-off-by: Soren Brinkmann <soren.brinkmann@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
The GEM driver should not need to know about Zynq specific details of
RCLK related registers and bitfields in the SLCR. Move those details to
the slcr driver.
Signed-off-by: Soren Brinkmann <soren.brinkmann@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Cortex-A9 MPCore TRM' from ARM (ARM DDI 0407G ID072711) describes
in the section 4.1.1 how this value calculation should be done.
This patch fixes the problem if network activity such as ping or
tftp is attempted after u-boot has been idle for an hour,
it hangs, and cannot control-C out of it.
Signed-off-by: Uday Hegde <udayh@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
This patch is here because of:
"arm: keep all sections in ELF file"
(sha1: 47ed5dd031)
Our tools expect to have elf with only LOAD header.
Without this fix also PHDR, INTERP and DYNAMIC headers
are available in ELF.
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
imx_get_fecclk() returns enet_ref instead of ipg.
Since the clock is used to calculate the prescaler
for the MDIO interface wrong values can be calculated.
Tested on a custom MX6S board with 100MBit interface
Signed-off-by: Markus Niebel <Markus.Niebel@tqs.de>
Currently when we boot a mx6dual U-boot reports that it is a mx6quad.
Report it as MX6D instead:
CPU: Freescale i.MX6D rev1.2 at 792 MHz
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Acked-by: Stefano babic <sbabic@denx.de>
Acked-by: Otavio Salvador <otavio@ossystems.com.br>
Boot ROM may mask MMDC_CHx_MASK in CCM_CCDR(such as i.MX6SL TO1.2),
it will cause warm reset fail, need to clear this MMDC_CHx_MASK field
to make sure all the i.MX6 series SOCs reset function work. Otherwise,
uboot "reset" command will fail, tested on i.MX6SL EVK board with TO1.2.
Signed-off-by: Anson Huang <b20788@freescale.com>
For low freq boot mode(ARM boot up with 396MHz), ROM
will not set AHB clock to 132MHz, and the reset value of
AHB divider is incorrect which will lead to wrong AHB
rate, need to correct it. To enable low freq boot mode,
need to set BOOT_CFG2[2] to high, tested on i.MX6Q/DL
SabreSD board and i.MX6SL EVK board.
Reviewed-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Anson Huang <b20788@freescale.com>
Use setbits/clrbits macro instead of readl/writel function.
(Suggested by Wolfgang)
Signed-off-by: Inha Song <ideal.song@samsung.com>
Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
This patch fixed that cfg value is set to wrong value.
Because it didn't read the related register.
Signed-off-by: Inha Song <ideal.song@samsung.com>
Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
We use the switch CONFIG_SUPPORT_EMMC_BOOT today to enable some
additional features of the eMMC boot partitions. Add support for being
told that we have booted from one of these partitions to the spl
framework and implement this on TI OMAP/related.
Cc: Pantelis Antoniou <panto@antoniou-consulting.com>
Signed-off-by: Tom Rini <trini@ti.com>
Signed-off-by: Pantelis Antoniou <panto@antoniou-consulting.com>
Because of the list of peripherals is not sequential,
such a routine does not check for valid correctly.
Error check will be done when call the exynos_pinmux_config function.
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
Acked-by: Jaehoon Chung <jh80.chung@samsung.com>
Acked-by: Rajeshwari Shinde <rajeshwari.s@samsung.com>
These files are for code that runs on the CPU (A15) on Tegra124 boards.
At this time, there is no A15-specific code here. The warmboot/LP0 files
aren't included as that code hasn't been ported yet.
Signed-off-by: Tom Warren <twarren@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Tested-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>
Split the SATA clock enabling function and add PCI express clock
enabling function. The SATA clock enabling function starts up the
100MHz SATA reference PLL in ENET_PLL register, but the code can
be re-used to enable the 125MHz PCIe reference in ENET_PLL, so pull
this code into separate function. Moreover, add the PCIe clock
enabling code.
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Albert Aribaud <albert.u.boot@aribaud.net>
Cc: Eric Nelson <eric.nelson@boundarydevices.com>
Cc: Fabio Estevam <fabio.estevam@freescale.com>
Cc: Stefano Babic <sbabic@denx.de>
Acked-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com>
Make indirect vectors addresses global, so they can be replaced by
various code that needs to do so. For example the MX6 PCI express
driver needs to temporarily replace data abort handler when reading
the config space.
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Albert Aribaud <albert.u.boot@aribaud.net>
Cc: Eric Nelson <eric.nelson@boundarydevices.com>
Cc: Fabio Estevam <fabio.estevam@freescale.com>
Cc: Stefano Babic <sbabic@denx.de>
Before this commit, all arch/arm/cpu/${CPU}/config.mk except ARMv8
had the same option:
$(call cc-option,-mshort-load-bytes,$(call cc-option,-malignment-traps,))
This commit moves it into arch/arm/config.mk.
If the compiler does not support the option,
it is ignored by $(call cc-option,...).
So this commit gives no harm to ARMv8.
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Patch adds modification to shared omap5 abb_setup() function, and
proper registers definitions needed for ABB setup sequence. ABB is
initialized for MPU voltage domain at OPP_NOM.
Signed-off-by: Nishanth Menon <nm@ti.com>
Reviewed-by: Tom Rini <trini@ti.com>
ES1.1 silicon is a very minor variant of ES1.0. Add priliminary support
for ES1.1 IDCODE change.
Signed-off-by: Nishanth Menon <nm@ti.com>
Reviewed-by: Tom Rini <trini@ti.com>
The commit
f3f98bb0 : "ARM: OMAP4/5: Do not configure non essential pads, clocks, dplls"
removed the config option aimed towards moving that stuff into kernel, which
renders some code unreachable. Remove that code.
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
The commit
f3f98bb0 : "ARM: OMAP4/5: Do not configure non essential pads, clocks, dplls"
removed the config option aimed towards moving that stuff into kernel, which
renders some code unreachable. Remove that code.
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
Commit 022298278 (mx6: soc: Disable VDDPU regulator) is causing kernel hang
for people using FSL kernel 3.0.35 and 3.10, so revert it for now.
Reported-by: Otavio Salvador <otavio@ossystems.com.br>
Reported-by: Pierre Aubert <p.aubert@staubli.com>
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Provide an argument to enable_fec_anatop_clock() to specify the clock frequency
that will be generated.
No changes are made to mx6slevk, which uses the default 50MHz fec clock.
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Acked-by: Stefano Babic <sbabic@denx.de>
Building some arm boards with older binutils may produce errors like this:
---8<---
crt0.S: Assembler messages:
crt0.S:70: Error: register expected, not '#(184)' -- `sub sp,#(184)'
--->8---
Use canonical version of the subtract mnemonic to avoid those issues.
Reported-by: Alexey Smishlayev <alexey@xtech2.lv>
Signed-off-by: Andreas Bießmann <andreas.devel@googlemail.com>
Some targets will build fine but not boot if sections .hash and
.got.plt are not present in the binary. Add them back.
Also, Exynos machines require .machine_param section in SPL.
Add it.
Signed-off-by: Albert ARIBAUD <albert.u.boot@aribaud.net>
Tested-by: Rajeshwari S Shinde <rajeshwari.s@samsung.com>
Commit 762a88ccf8 introduces
a 64-bit division without using the lldiv() function,
which pulls in previously unused libgcc stuff.
Signed-off-by: Måns Rullgård <mans@mansr.com>
Signed-off-by: Christian Gmeiner <christian.gmeiner@gmail.com>
Acked-by: Stefano Babic <sbabic@denx.de>
Bringing in the MMC tree means that CONFIG_BOUNCE_BUFFER needed to be
added to include/configs/exynos5-dt.h now.
Conflicts:
include/configs/exynos5250-dt.h
Signed-off-by: Tom Rini <trini@ti.com>
Added support to find the bootmodes by reading
slcr bootmode register. this can be helpful to
autoboot the configurations w.r.t a specified bootmode.
Added this functionality on board_late_init as it's not
needed for normal initializtion part.
Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com>
The enable_fec_anatop_clock method should be available for all MX6
variant as it is not MX6 SoloLite specific. This moves the code out of
the #ifdef/#endif and we make it conditional to CONFIG_FEC_MXC
instead.
Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
Acked-by: Stefano Babic <sbabic@denx.de>
As U-boot does not use GPU/VPU peripherals, shutdown the VDDPU regulator
in order to save power.
Signed-off-by: Anson Huang <b20788@freescale.com>
Signed-off-by: Jason Liu <r64343@freescale.com>
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
When changing LDO voltages we need to wait for the required amount of time
for the voltage to settle.
Also, as the timer is still not available when arch_cpu_init() is called, we
need to call it later at board_postclk_init() phase.
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Since ROM may modify the LDO ramp up time according to fuse setting,
it is safer to reset the ramp up field to its default value of 00:
00: 64 cycles of 24MHz clock;
01: 128 cycles of 24MHz clock;
02: 256 cycles of 24MHz clock;
03: 512 cycles of 24MHz clock;
Signed-off-by: Anson Huang <b20788@freescale.com>
Signed-off-by: Jason Liu <r64343@freescale.com>
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Adds code in pinmux and gpio framework to support Exynos5420.
Signed-off-by: Naveen Krishna Chatradhi <ch.naveen@samsung.com>
Signed-off-by: Akshay Saraswat <akshay.s@samsung.com>
Signed-off-by: Rajeshwari S Shinde <rajeshwari.s@samsung.com>
Acked-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
This patch intends to add DDR3 initialization code for Exynos5420.
Signed-off-by: Akshay Saraswat <akshay.s@samsung.com>
Signed-off-by: Rajeshwari S Shinde <rajeshwari.s@samsung.com>
Acked-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
This patch adds code for clock initialization and clock settings
of various IP's and controllers, required for Exynos5420
Signed-off-by: Rajeshwari S Shinde <rajeshwari.s@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>
GP EVM has 1GB DDR3 attached(Part no: MT41K512M8RH).
Adding details for the same.
Below is the brief description of DDR3 init sequence(SW leveling):
-> Enable VTT regulator
-> Configure VTP
-> Configure DDR IO settings
-> Disable initialization and refreshes until EMIF registers are programmed.
-> Program Timing registers
-> Program leveling registers
-> Program PHY control and Temp alert and ZQ config registers.
-> Enable initialization and refreshes and configure SDRAM CONFIG register
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
AM4372 EPOS EVM has 1GB LPDDR2(Part no: MT42L256M32D2LG-25 WT:A)
Adding LPDDR2 init sequence and register details for the same.
Below is the brief description of LPDDR2 init sequence:
-> Configure VTP
-> Configure DDR IO settings
-> Disable initialization and refreshes until EMIF registers are programmed.
-> Program Timing registers
-> Program PHY control and Temp alert and ZQ config registers.
-> Enable initialization and refreshes and configure SDRAM CONFIG register
-> Wait till initialization is complete and the configure MR registers.
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Currently same value is programmed for all ioregs. This is not
the case for all SoC's like AM4372. So adding a structure for ioregs
and updating in all board files. And also return from config_cmd_ctrl()
and config_ddr_data() functions if data is not passed.
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
[trini: Fixup dxr2, cm_t335, adapt pcm051 rev3]
Signed-off-by: Tom Rini <trini@ti.com>
Updating the Multiplier and Dividers value for all DPLLs.
Safest OPP is read from DEV ATTRIBUTE register. Accoring to the value
returned the MPU DPLL is locked.
At different OPPs follwoing are the MPU locked frequencies.
OPP50 300MHz
OPP100 600MHz
OPP120 720MHz
OPPTB 800MHz
OPPNT 1000MHz
According to the latest DM following is the OPP table dependencies:
VDD_CORE VDD_MPU
OPP50 OPP50
OPP50 OPP100
OPP100 OPP50
OPP100 OPP100
OPP100 OPP120
So at different OPPs of MPU it is safest to lock CORE at OPP_NOM.
Following are the DPLL locking frequencies at OPP NOM:
Core locks at 1000MHz
Per locks at 960MHz
LPDDR2 locks at 266MHz
DDR3 locks at 400MHz
Touching AM33xx files also to get DPLL values specific to board but no
functionality difference.
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
ROM did not invalidate L1 cache when download by usb
Need invalidate L1 cache before enable cache
Signed-off-by: Huang yongcai <b20788@freescale.com>
Signed-off-by: Frank Li <Frank.Li@freescale.com>
According to the mx6 quad reference manual, the DIV_SELECT field of register
CCM_ANALOG_PLL_ENETn has the following meaning:
"Controls the frequency of the ethernet reference clock.
- 00 - 25MHz
- 01 - 50MHz
- 10 - 100MHz
- 11 - 125MHz"
Current logic does not handle the 25MHz case correctly, so fix it.
Signed-off-by: Rabeeh Khoury <rabeeh@solid-run.com>
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
As per the latest 0.6 version of DM for OMAP5430 ES2.0,
MPU_GCLK is given as 1000MHz. In order to achieve this DPLL_MPU
should be locked at 2000MHz. Fixing the same and cleaning the
previously used dpll values.
Reported-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Commit "armv7: hw_data: change clock divider setting"
updates the setting for m6 divider for 20MHz sys_clk frequency.
But missed to update for other sys_clk frequencies. Doing the same.
Reported-by: Rajendran, Vinothkumar <vinothr@ti.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
ABB code uses LDELAY but does not include the header that provides its
definition.
Include the header.
Cc: Tom Rini <trini@ti.com>
Signed-off-by: Nikita Kiryanov <nikita@compulab.co.il>
Acked-by: Nishanth Menon <nm@ti.com>
Test on Beaglebone white over cpsw, usb ether and SD card (read and
write), performance increased, crc32 of data matches.
Signed-off-by: Tom Rini <trini@ti.com>
The lower 5 bit of MVBAR is UNK/SBZP.
So, Monitor Vector Base Address must be 32-byte aligned.
On the other hand, the secure monitor handler does not need
32-byte alignment.
This commit moves ".algin 5" directive to the correct place.
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Cc: Andre Przywara <andre.przywara@linaro.org>
Acked-by: Andre Przywara <andre.przywara@linaro.org>
This patch change the per_clocks_enable() function used in OMAP3
code to enable peripherals clocks. Only required clock should be
activated. So if the board use the uart(x) as a console we need
to activate it. The Board's config should include define to enable
every subsystem that the board use. For a complete list
of affected peripherals, registers CM_FCLKEN_PER and CM_ICLKEN_PER
should be checked.
Right now the bootloader can enable and disable clocks for:
uart(x) using CONFIG_SYS_NS16550
gpio bank (x) using CONFIG_OMAP3_GPIO_X with X = { 2, 3, 4, 5, 6 }
i2c bus using CONFIG_DRIVER_OMAP34XX_I2C.
Not required gptimer(x) and mcbsp(x) for booting are disabled by default and
are not supported by any define.
Their activation need to included in the per_clocks_enable if the
peripheral is included. Not booting board should enable the peripheral
clock connected to their driver
Signed-off-by: Michael Trimarchi <michael@amarulasolutions.com>
Cc: Igor Grinberg <grinberg@compulab.co.il>
Cc: Tom Rini <trini@ti.com>
Acked-by: Igor Grinberg <grinberg@compulab.co.il>
This patch fix following errors and warnings
spl_boot.c: In function 'exynos_spi_copy':
spl_boot.c:111:49: error: 'CONFIG_ENV_SPI_BASE' undeclared (first use in this function)
spl_boot.c:111:49: note: each undeclared identifier is reported only once for each function it appears in
spl_boot.c:142:2: error: 'SPI_FLASH_UBOOT_POS' undeclared (first use in this function)
spl_boot.c: In function 'copy_uboot_to_ram':
spl_boot.c:189:28: warning: unused variable 'param' [-Wunused-variable]
spl_boot.c: At top level:
spl_boot.c:107:13: warning: 'exynos_spi_copy' defined but not used [-Wunused-function]
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
Cc: Albert ARIBAUD <albert.u.boot@aribaud.net>
Certain EFUSE settings were recommended for the first
four lots of OMAP5 ES1.0 silicon. These are not applicable
for OMAP5 ES2.0 and DRA7 silicon. So removing these EFUSE settings.
Reported-by: Griffis, Brad <bgriffis@ti.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
When core power domain hits oswr, then DDR3 memories does not come back
while resuming. This is because when EMIF registers are lost, then the
controller takes care of copying the values from the shadow registers.
If the shadow registers are not updated with the right values, then this
results in incorrect settings while resuming. So updating the shadow registers
with the corresponding status registers here during the boot.
Signed-off-by: Sricharan R <r.sricharan@ti.com>
Currently the DDR3 memory on DRA7 ES1.0 evm board is enabled using
software leveling. This was done since hardware leveling was not
working. Now that the right sequence to do hw leveling is identified,
use it. This is required for EMIF clockdomain to idle and come back
during lowpower usecases.
Signed-off-by: Sricharan R <r.sricharan@ti.com>
Based on the definitive guide to EMIF configuration[1] certain registers
that we have been modifying (and are documented registers) should be
left in their reset values rather than modified. This has been tested
on AM335x GP EVM and Beaglebone White.
[1]: http://processors.wiki.ti.com/index.php/AM335x_EMIF_Configuration_tips
Cc: Enric Balletbo i Serra <eballetbo@iseebcn.com>
Cc: Javier Martinez Canillas <javier@dowhile0.org>
Cc: Heiko Schocher <hs@denx.de>
Cc: Lars Poeschel <poeschel@lemonage.de>
Signed-off-by: Tom Rini <trini@ti.com>
Tested-by: Matt Porter <matt.porter@linaro.org>
The struct incorrectly referenced SMPS1 for all three power
domains. Fixed this by using SMPS2 and SMPS5 as appropriate.
Add some comments and choose voltage values that correspond
to voltage selection codes.
Signed-off-by: Lubomir Popov <l-popov@ti.com>
Adding Freeze Controller driver. All HPS IOs need to be
in freeze state during pin mux or IO buffer configuration.
It is to avoid any glitch which might happen
during the configuration from propagating to external devices.
Signed-off-by: Chin Liang See <clsee@altera.com>
Cc: Wolfgang Denk <wd@denx.de>
CC: Pavel Machek <pavel@denx.de>
Cc: Dinh Nguyen <dinguyen@altera.com>
Cc: Tom Rini <trini@ti.com>
Cc: Albert Aribaud <albert.u.boot@aribaud.net>
This patch implements a custom spi_copy funtion to copy u-boot from SF
to RAM. This is faster then iROM spi_copy funtion as this runs spi at
50Mhz and also in WORD mode of operation.
Changed a printf in pinmux.c to debug just to avoid the compilation
error in SPL.
Signed-off-by: Alim Akhtar <alim.akhtar@samsung.com>
Signed-off-by: Tom Wai-Hong Tam <waihong@chromium.org>
Signed-off-by: Rajeshwari S Shinde <rajeshwari.s@samsung.com>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
Renesas ARM SoCs (R-Mobile, R-Car) are armv7 only.
This drops armv5 supprt from PLATFORM_CPPFLAGS and remove config.mk of
rmobile.
Signed-off-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
The kzm9g board fails in building with -march=armv7-a.
This fixs this problem by converting to do_div().
-----
USE_PRIVATE_LIBGCC=yes ./MAKEALL kzm9g
...
arch/arm/cpu/armv7/rmobile/librmobile.o: In function `get_time_us':
arch/arm/cpu/armv7/rmobile/timer.c:41: undefined reference to `__aeabi_uldivmod'
arch/arm/cpu/armv7/rmobile/librmobile.o: In function `get_time_ms':
arch/arm/cpu/armv7/rmobile/timer.c:47: undefined reference to `__aeabi_uldivmod'
-----
Signed-off-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
CC: Tetsuyuki Kobayashi <koba@kmckk.co.jp>
Renesas R8A7791 is CPU with Cortex-A15.
This supports the basic register definition and GPIO and
framework of PFC.
Signed-off-by: Hisashi Nakamura <hisashi.nakamura.ak@renesas.com>
Signed-off-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
CC: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
CC: Albert Aribaud <albert.u.boot@aribaud.net>
Renesas R8A7790 is CPU with Cortex-A7 and A15.
This supports the basic register definition and GPIO and
framework of PFC.
Signed-off-by: Kouei Abe <kouei.abe.cp@renesas.com>
Signed-off-by: Ryo Kataoka <ryo.kataoka.wt@renesas.com>
Signed-off-by: Hisashi Nakamura <hisashi.nakamura.ak@renesas.com>
Signed-off-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
CC: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
CC: Albert Aribaud <albert.u.boot@aribaud.net>
Fix the set_mmc_clk() for exnos4x12.
If board is exynos4x12, mmc clock should be set to wrong value.
Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
Enable Atmel sama5d3xek boart spl boot support, which can load u-boot
from SD card with FAT file system.
Signed-off-by: Bo Shen <voice.shen@atmel.com>
Signed-off-by: Andreas Bießmann <andreas.devel@googlemail.com>
As the DBGU and PIT has its own ID on sama5d3 SoC, while not share
with SYS ID. So, correct them.
Signed-off-by: Bo Shen <voice.shen@atmel.com>
Signed-off-by: Andreas Bießmann <andreas.devel@googlemail.com>
GPMC controller is common IP to interface with both NAND and NOR flash devices.
Also, it supports max 8 chip-selects, which can be independently connected to
any of the devices.
But ROM code expects the boot-device to be connected to only chip-select[0].
Thus to resolve conflict between NOR and NAND boot. This patch:
- combines NOR and NAND configs spread in board files to common gpmc_init()
- configures GPMC based on boot-mode selected for SPL boot.
Signed-off-by: Pekon Gupta <pekon@ti.com>
ELM hardware engine which is used for ECC error detection, is present on all
latest OMAP SoC (like OMAP4xxx, OMAP5xxx, DRA7xxx, AM33xx, AM43xx). Thus ELM
driver should be moved to common drivers/mtd/nand/ folder so that all SoC
having on-chip ELM hardware engine can re-use it.
This patch has following changes:
- mv arch/arm/include/asm/arch-am33xx/elm.h arch/arm/include/asm/omap_elm.h
- mv arch/arm/cpu/armv7/am33xx/elm.c drivers/mtd/nand/omap_elm.c
- update Makefiles
- update #include <asm/elm.h>
- add CONFIG_NAND_OMAP_ELM to compile driver/mtd/nand/omap_elm.c
and include in all board configs using AM33xx SoC platform.
Signed-off-by: Pekon Gupta <pekon@ti.com>
In 6789e84 we update u-boot-spl.lds for OMAP to ensure we include
adapter information, as we use i2c during SPL. However, the regex used
also means we included commands that may have been built. On omap5_uevm
this leads to a failure as we include the command from the do_tca642x
command, and fail to link. The fix is to restrict our regex to only the
i2c list parts.
Signed-off-by: Tom Rini <trini@ti.com>
The SAMA5D36 chip is the superset product of SAMA5D3x family.
For detail information please refer to:
http://www.atmel.com/Microsite/sama5d3/default.aspx
Signed-off-by: Josh Wu <josh.wu@atmel.com>
Acked-by: Bo Shen <voice.shen@atmel.com>
Signed-off-by: Andreas Bießmann <andreas.devel@googlemail.com>
- add omap24xx driver to new multibus/multiadpater support
- adapted all config files, which uses this driver
Tested on the am335x based siemens boards rut, dxr2 and pxm2
posted here:
http://patchwork.ozlabs.org/patch/263211/
Signed-off-by: Heiko Schocher <hs@denx.de>
Tested-by: Tom Rini <trini@ti.com>
Cc: Lars Poeschel <poeschel@lemonage.de>
Cc: Steve Sakoman <sakoman@gmail.com>
Cc: Thomas Weber <weber@corscience.de>
Cc: Tom Rix <Tom.Rix@windriver.com>
Cc: Grazvydas Ignotas <notasas@gmail.com>
Cc: Enric Balletbo i Serra <eballetbo@iseebcn.com>
Cc: Luca Ceresoli <luca.ceresoli@comelit.it>
Cc: Igor Grinberg <grinberg@compulab.co.il>
Cc: Ilya Yanok <yanok@emcraft.com>
Cc: Stefano Babic <sbabic@denx.de>
Cc: Nishanth Menon <nm@ti.com>
Cc: Pali Rohár <pali.rohar@gmail.com>
Cc: Peter Barada <peter.barada@logicpd.com>
Cc: Nagendra T S <nagendra@mistralsolutions.com>
Cc: Michael Jones <michael.jones@matrix-vision.de>
Cc: Raphael Assenat <raph@8d.com>
Acked-by: Igor Grinberg <grinberg@compulab.co.il>
Acked-by: Stefano Babic <sbabic@denx.de>
As
http://www.denx.de/wiki/view/U-Boot/DesignPrinciples#2_Keep_it_Fast
states:
"Initialize devices only when they are needed within U-Boot"
enable the RTC32K OSC only, if CONFIG_SPL_AM33XX_ENABLE_RTC32K_OSC is
enabled. Enable this in ti_am335x_common.h, so all boards in mainline
should work as before.
Signed-off-by: Heiko Schocher <hs@denx.de>
Cc: Tom Rini <trini@ti.com>
Conflicts:
arch/arm/cpu/arm926ejs/mxs/Makefile
board/compulab/cm_t35/Makefile
board/corscience/tricorder/Makefile
board/ppcag/bg0900/Makefile
drivers/bootcount/Makefile
include/configs/omap4_common.h
include/configs/pdnb3.h
Makefile conflicts are due to additions/removals of
object files on the ARM branch vs KBuild introduction
on the main branch. Resolution consists in adjusting
the list of object files in the main branch version.
This also applies to two files which are not listed
as conflicting but had to be modified:
board/compulab/common/Makefile
board/udoo/Makefile
include/configs/omap4_common.h conflicts are due to
the OMAP4 conversion to ti_armv7_common.h on the ARM
side, and CONFIG_SYS_HZ removal on the main side.
Resolution is to convert as this icludes removal of
CONFIG_SYS_HZ.
include/configs/pdnb3.h is due to a removal on ARM side.
Trivial resolution is to remove the file.
Note: 'git show' will also list two files just because
they are new:
include/configs/am335x_igep0033.h
include/configs/omap3_igep00x0.h
TZ_DDR_RAM on reset is in secure mode.
Since uboot and linux runs in full
TZ privilege secure mode, no need
to set DDR trustzone to non-secure.
Signed-off-by: Radhey Shyam Pandey <radheys@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
In case where ps-ddr is not used, do not remap
OCM to high address and keep it from 0x0.
Linux SMP requires to have memory at 0x0.
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
This patch moves S5PC, EXYNOS specific directory entries
from the toplevel Makefile to arch/arm/cpu/armv7/Makefile
using Kbuild descending feature.
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Cc: Minkyu Kang <mk7.kang@samsung.com>
This patch moves OMAP specific directory entries
from the toplevel Makefile and spl/Makefile
to arch/arm/cpu/armv7/Makefile using Kbuild descending feature.
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Cc: Tom Rini <trini@ti.com>
This patch moves Tegra specific directory entries
from the toplevel Makefile and spl/Makefile
to arch/arm/cpu/*/Makefile using Kbuild descending feature.
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Cc: Tom Warren <TWarren@nvidia.com>
setup_wdog macro is not used anywhere, so just remove it.
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Acked-by: Stefano Babic <sbabic@denx.de>
Add the support for the dra7xx xhci usb host.
dra7xx does not contain an EHCI controller so the headers
can be removed from the board file.
The xHCI host on dra7xx is connected to a usb2 phy so need to
add support to enable those clocks.
Signed-off-by: Dan Murphy <dmurphy@ti.com>
Adding methods to turn on/off power to USB3.0 type PHY
as and when required by the controller.
Signed-off-by: Vivek Gautam <gautam.vivek@samsung.com>
Cc: Julius Werner <jwerner@chromium.org>
Cc: Simon Glass <sjg@chromium.org>
Cc: Minkyu Kang <mk7.kang@samsung.com>
Cc: Dan Murphy <dmurphy@ti.com>
Cc: Marek Vasut <marex@denx.de>
Zynq lowlevel_init() was implemented in C but stack
pointer is setup after function call in _main().
Move architecture setup to arch_cpu_init() which is call
as the first function in board_init_f() which
already have correct stack pointer.
Reported-by: Sven Schwermer <sven.schwermer@tuhh.de>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
OMAP4 panda rev A6 is a 4430 es2.3 IC with an updated memory
part.
The panda rev A6 uses Elpida 2x4Gb memory and no longer uses Micron
so the timings needs to be updated
Signed-off-by: Dan Murphy <dmurphy@ti.com>
Adding System Manager driver which will configure the
pin mux for real hardware Cyclone V development kit
(not Virtual Platform)
Signed-off-by: Chin Liang See <clsee@altera.com>
Reviewed-by: Pavel Machek <pavel@denx.de>
Acked-by: Dinh Nguyen <dinguyen@altera.com>
Cc: Wolfgang Denk <wd@denx.de>
CC: Pavel Machek <pavel@denx.de>
Cc: Dinh Nguyen <dinguyen@altera.com>
Cc: Tom Rini <trini@ti.com>
Cc: Albert Aribaud <albert.u.boot@aribaud.net>
Clock requirement for qspi clk is 192 Mhz.
According to the below formulae,
f dpll = f ref * 2 * m /(n + 1)
clockoutx2_Hmn = f dpll / (hmn+ 1)
fref = 20 Mhz, m = 96, n = 4 gives f dpll = 768 Mhz
For clockoutx2_Hmn to be 768, hmn + 1 should be 4.
Signed-off-by: Sourav Poddar <sourav.poddar@ti.com>
Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com>
The original creation of arch/arm/cpu/armv7/{virt-v7.c,nonsec_virt.S}
predates the SPDX conversion, so the original elaborate license
statements sneaked in.
Fix this by replacing them with the proper abbreviation.
Signed-off-by: Andre Przywara <andre.przywara@linaro.org>
For the KVM and XEN hypervisors to be usable, we need to enter the
kernel in HYP mode. Now that we already are in non-secure state,
HYP mode switching is within short reach.
While doing the non-secure switch, we have to enable the HVC
instruction and setup the HYP mode HVBAR (while still secure).
The actual switch is done by dropping back from a HYP mode handler
without actually leaving HYP mode, so we introduce a new handler
routine in our new secure exception vector table.
In the assembly switching routine we save and restore the banked LR
and SP registers around the hypercall to do the actual HYP mode
switch.
The C routine first checks whether we are in HYP mode already and
also whether the virtualization extensions are available. It also
checks whether the HYP mode switch was finally successful.
The bootm command part only calls the new function after the
non-secure switch.
Signed-off-by: Andre Przywara <andre.przywara@linaro.org>
Currently the non-secure switch is only done for the boot processor.
To enable full SMP support, we have to switch all secondary cores
into non-secure state also.
So we add an entry point for secondary CPUs coming out of low-power
state and make sure we put them into WFI again after having switched
to non-secure state.
For this we acknowledge and EOI the wake-up IPI, then go into WFI.
Once being kicked out of it later, we sanity check that the start
address has actually been changed (since another attempt to switch
to non-secure would block the core) and jump to the new address.
The actual CPU kick is done by sending an inter-processor interrupt
via the GIC to all CPU interfaces except the requesting processor.
The secondary cores will then setup their respective GIC CPU
interface.
While this approach is pretty universal across several ARMv7 boards,
we make this function weak in case someone needs to tweak this for
a specific board.
The way of setting the secondary's start address is board specific,
but mostly different only in the actual SMP pen address, so we also
provide a weak default implementation and just depend on the proper
address to be set in the config file.
Signed-off-by: Andre Przywara <andre.przywara@linaro.org>
The core specific part of the work is done in the assembly routine
in nonsec_virt.S, introduced with the previous patch, but for the full
glory we need to setup the GIC distributor interface once for the
whole system, which is done in C here.
The routine is placed in arch/arm/cpu/armv7 to allow easy access from
other ARMv7 boards.
We check the availability of the security extensions first.
Since we need a safe way to access the GIC, we use the PERIPHBASE
registers on Cortex-A15 and A7 CPUs and do some sanity checks.
Boards not implementing the CBAR can override this value via a
configuration file variable.
Then we actually do the GIC enablement:
a) enable the GIC distributor, both for non-secure and secure state
(GICD_CTLR[1:0] = 11b)
b) allow all interrupts to be handled from non-secure state
(GICD_IGROUPRn = 0xFFFFFFFF)
The core specific GIC setup is then done in the assembly routine.
Signed-off-by: Andre Przywara <andre.przywara@linaro.org>
While actually switching to non-secure state is one thing, another
part of this process is to make sure that we still have full access
to the interrupt controller (GIC).
The GIC is fully aware of secure vs. non-secure state, some
registers are banked, others may be configured to be accessible from
secure state only.
To be as generic as possible, we get the GIC memory mapped address
based on the PERIPHBASE value in the CBAR register. Since this
register is not architecturally defined, we check the MIDR before to
be from an A15 or A7.
For CPUs not having the CBAR or boards with wrong information herein
we allow providing the base address as a configuration variable.
Now that we know the GIC address, we:
a) allow private interrupts to be delivered to the core
(GICD_IGROUPR0 = 0xFFFFFFFF)
b) enable the CPU interface (GICC_CTLR[0] = 1)
c) set the priority filter to allow non-secure interrupts
(GICC_PMR = 0xFF)
Also we allow access to all coprocessor interfaces from non-secure
state by writing the appropriate bits in the NSACR register.
The generic timer base frequency register is only accessible from
secure state, so we have to program it now. Actually this should be
done from primary firmware before, but some boards seems to omit
this, so if needed we do this here with a board specific value.
The Versatile Express board does not need this, so we remove the
frequency from the configuration file here.
After having switched to non-secure state, we also enable the
non-secure GIC CPU interface, since this register is banked.
Since we need to call this routine also directly from the smp_pen
later (where we don't have any stack), we can only use caller saved
registers r0-r3 and r12 to not mess with the compiler.
Signed-off-by: Andre Przywara <andre.przywara@linaro.org>
A prerequisite for using virtualization is to be in HYP mode, which
requires the CPU to be in non-secure state first.
Add a new file in arch/arm/cpu/armv7 to hold a monitor handler routine
which switches the CPU to non-secure state by setting the NS and
associated bits.
According to the ARM architecture reference manual this should not be
done in SVC mode, so we have to setup a SMC handler for this.
We create a new vector table to avoid interference with other boards.
The MVBAR register will be programmed later just before the smc call.
Signed-off-by: Andre Przywara <andre.przywara@linaro.org>
The value MXC_CCM_CCGR3_IPU1_IPU_DI0_OFFSET that was used to initialize
the CCGR3 register caused an undefined value for CG0.
Signed-off-by: Pierre Aubert <p.aubert@staubli.com>
CC: Stefano Babic <sbabic@denx.de>
Acked-by: Eric Nelson <eric.nelson@boundarydevices.com>
This patch makes the necessary changes for making use of
I2S0 channel instead of I2S1 channel on smdk board. This
changes are done to maintain the uniformity to use I2S0 channel.
Signed-off-by: Dani Krishna Mohan <krishna.md@samsung.com>
To be more EABI compliant and as a preparation for building
with clang, use the platform-specific r9 register for gd
instead of r8.
note: The FIQ is not updated since it is not used in u-boot,
and under discussion for the time being.
The following checkpatch warning is ignored:
WARNING: Use of volatile is usually wrong: see
Documentation/volatile-considered-harmful.txt
Signed-off-by: Jeroen Hofstee <jeroen@myspectrum.nl>
cc: Albert ARIBAUD <albert.u.boot@aribaud.net>
Every ARM cpu config.mk (arch/arm/cpu/{CPUDIR}/config.mk) defines:
PLATFORM_RELFLAGS += -fno-common -ffixed-r8 -msoft-float
So, this patch moves the common compiler options to arch/arm/config.mk.
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Reload address was written to the counter register
instead of load register.
The problem happens when timer expires but never
reload to ~0UL (it is downcount timer).
Reported-by: Stephen MacMahon <stephenm@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Writing magic bits into LDO SRAM was suggested only for OMAP5432
ES1.0. Now these are no longer applicable. Moreover these bits should
not be overwritten as they are loaded from EFUSE. So avoid
writing into these registers.
Boot tested on OMAP5432 ES2.0
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
In Errata 1.0.24, if the board is running at OPP50 and has a warm reset,
the boot ROM sets the frequencies for OPP100. This patch attempts to
drop the frequencies back to OPP50 as soon as possible in the SPL. Then
later the voltages and frequencies up set higher.
Cc: Enric Balletbo i Serra <eballetbo@iseebcn.com>
Cc: Lars Poeschel <poeschel@lemonage.de>
Signed-off-by: Steve Kipisz <s-kipisz2@ti.com>
[trini: Adapt to current framework]
Signed-off-by: Tom Rini <trini@ti.com>
Add a am33xx_spl_board_init (and enable the PMICs) that we may see,
depending on the board we are running on. In all cases, we see if we
can rely on the efuse_sma register to tell us the maximum speed. In the
case of Beaglebone White, we need to make sure we are on AC power, and
are on later than rev A1, and then we can ramp up to the PG1.0 maximum
of 720Mhz. In the case of Beaglebone Black, we are either on PG2.0 that
supports 1GHz or PG2.1. As PG2.0 may or may not have efuse_sma set, we
cannot rely on this probe. In the case of the GP EVM, EVM SK and IDK we
need to rely on the efuse_sma if we are on PG2.1, and the defaults for
PG1.0/2.0.
Signed-off-by: Tom Rini <trini@ti.com>
We need to allow for a further call-out in spl_board_init. Call this
am33xx_spl_board_init and add a __weak version. This function may be
used to scale the MPU frequency up, depending on board needs.
Signed-off-by: Tom Rini <trini@ti.com>
This is porting of Freescale's patch from version imx_v2009.08_3.0.35_4.0.0,
that fixes the obvious mistype of bits offset macro name (ACLK_EMI_PODF_OFFSET
was used instead of ACLK_EMI_SLOW_PODF_OFFSET).
Using the occasion, change the variable name 'emi_slow_pof' to more consistent
'emi_slow_podf'.
Signed-off-by: Jason Liu <r64343@freescale.com>
Signed-off-by: Andrew Gabbasov <andrew_gabbasov@mentor.com>
Acked-by: Dirk Behme <dirk.behme@de.bosch.com>
Consolidating reset code into reset_manager.c. Also
separating reset configuration for virtual target and
real hardware Cyclone V development kit
Signed-off-by: Chin Liang See <clsee@altera.com>
Reviewed-by: Pavel Machek <pavel@denx.de>
Cc: Wolfgang Denk <wd@denx.de>
Cc: Pavel Machek <pavel@denx.de>
Cc: Dinh Nguyen <dinguyen@altera.com>
Cc: Tom Rini <trini@ti.com>
Cc: Albert Aribaud <albert.u.boot@aribaud.net>
