Add a function to get the stack pointer and another to halt the CPU.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Many of the x86 CONFIG options will be common across different boards. Move
them to a common file.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Newer Intel chips require a Management Engine which requires a particular
format for the SPI flash that contains the boot loader. Add a tool that
supports creating and modifying these ROM images.
This tool is from Chrome OS but has been cleaned up to use U-Boot style
and to add comments. A few features have been added also.
Signed-off-by: Simon Glass <sjg@chromium.org>
For board IDs a common approach is to set aside several GPIOs for use in
determining the board ID. This can provide information about board features
and the revision.
Add a function that turns a list of GPIOs into an integer by assigning
each GPIO to a single bit.
Signed-off-by: Simon Glass <sjg@chromium.org>
In general we can't store things in the data section until we have inited
SDRAM. Some platforms allow this (e.g. those with SPL) but some don't. Move
the pointer to global_data so that it will work on all platforms.
Without this fix the serial port will not work prior to relocation with
driver model on some platforms.
Signed-off-by: Simon Glass <sjg@chromium.org>
For some CPUs, having malloc() available very early is useful. There is no
reason to delay this since early malloc is allocated before board_init_f()
is called.
Move early malloc() init nearer to the start of the init sequence.
Signed-off-by: Simon Glass <sjg@chromium.org>
Return the saved TSC frequency in get_tbclk_mhz().
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Acked-by: Simon Glass <sjg@chromium.org>
Tested-by: Simon Glass <sjg@chromium.org>
Use the same way that Linux does for quick TSC calibration via PIT
when calibration via MSR fails.
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Acked-by: Simon Glass <sjg@chromium.org>
Using MSR_PLATFORM_INFO (0xCE) to calibrate TSR will cause #GP on
processors which do not have this MSR. Instead only doing the MSR
calibration for known/supported CPUs.
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Acked-by: Simon Glass <sjg@chromium.org>
Tested-by: Simon Glass <sjg@chromium.org>
The CPU identification happens in x86_cpu_init_f() and corresponding
fields are saved in the global data for later use.
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
The built in self test value is available in register eax on start-up. Save
it so that it can be accessed later. Unfortunately we must wait until the
global_data is available before we can do this, so there is a little bit of
shuffling to keep it around.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Some functions are missing prototypes. Fix those that are specific to x86.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Instead of an x86-specific cpu_init_f() function, use the normal U-Boot one
for this purpose. Also remove a useless/misleading comment.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Instead of having an x86-specific DRAM init function, adjust things so we
can use the normal one.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
This code is a little muddled, so tidy it up. Make sure that we put the
GDT in the right place and set it up properly.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
We should invalidate the TLB right at the start to ensure that we don't get
false address translations even though paging is disabled.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
This allows a board to do very early init, but no boards need to do this.
We may as well drop this feature.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
This was missed when the real mode support was dropped. Remove it.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
This commit replaces roundup macro with the one from Linux Kernel.
DEFINE_ALIGN_BUFFER must be fixed because typechecking can not
be used in this context.
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
These macros seem to be useful for U-Boot too (or at least
harmless). Imported from Linux 3.18-rc2.
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
U-Boot has imported various utility macros from Linux
scattering them to various places without consistency.
In include/common.h are min, max, min3, max3, ARRAY_SIZE, ALIGN,
container_of, DIV_ROUND_UP, etc.
In include/linux/compat.h are min_t, max_t, round_up, round_down,
etc.
We also have duplicated defines of min_t in some *.c files.
Moreover, we are suffering from too cluttered include/common.h.
This commit moves various macros that originate in
include/linux/kernel.h of Linux to their original position.
Note:
This commit simply moves the macros; the macros roundup,
min, max, min2, max3, ARRAY_SIZE are different
from those of Linux at this point.
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
All the references of DIV_ROUND have been replaced with
DIV_ROUND_CLOSEST. Remove DIV_ROUND.
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
The Linux-compatible macro DIV_ROUND_CLOSEST is a bit more flexible
and safer than DIV_ROUND.
For example,
foo = DIV_ROUND_CLOSEST(x, y++)
works expectedly, but
foo = DIV_ROUND(x, y++)
does not. (y is incremented twice.)
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
CONFIG_CPU_ARM1136 was introduced into Kconfig by commit 2e07c249a6
(kconfig: arm: introduce symbol for ARM CPUs).
This commit removes all the defines of CONFIG_ARM1136 and replaces
the only reference in arch/arm/lib/cache.c with CONFIG_CPU_ARM1136.
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
CONFIG_CPU_ARM926EJS was introduced into Kconfig by commit 2e07c249a6
(kconfig: arm: introduce symbol for ARM CPUs).
This commit removes all the defines of CONFIG_ARM926EJS and replaces
the only reference in arch/arm/lib/cache.c with CONFIG_CPU_ARM926EJS.
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
CONFIG_CPU_ARM920T was introduced into Kconfig by commit 2e07c249a6
(kconfig: arm: introduce symbol for ARM CPUs).
This commit removes all the defines of CONFIG_ARM920T and replaces the
only reference in drivers/usb/host/ohci-hcd.c with CONFIG_CPU_ARM920T.
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Some (not all) of ARMv7 boards define CONFIG_ARMV7, which is useless.
Besides, it is never referenced.
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Acked-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
Modify the pfuze init for mx6sxsabresd to use the shared
"pfuze_common_init" function. And move this initialization to
power_init_board.
Signed-off-by: Ye.Li <B37916@freescale.com>
Modify the pfuze init for mx6sabresd to use the shared
"pfuze_common_init" function. And move this initialization to
power_init_board.
Signed-off-by: Ye.Li <B37916@freescale.com>
Since the Pfuze initializations are similar on various mx6 SABRE
boards. Factorize the initialization to a common function in file
board/freescale/common/pfuze.c. So that all SABRE boards BSP can
share the function.
Signed-off-by: Ye.Li <B37916@freescale.com>
Add full support for USDHC2, USDHC3, USDHC4 on mx6sx sabresd board.
The default boot socket is USDHC4, so the MMC environment device and
mmcdev variable are set to this device.
Signed-off-by: Ye.Li <B37916@freescale.com>
The reset value of "uSDHCx_INT_STATUS_EN" register is changed to 0
on iMX6SX. So the fsl_esdhc driver must update to set the register,
otherwise no state can be detected.
Signed-off-by: Ye.Li <B37916@freescale.com>
In U-boot it is preferred to access the register via structure pointer, so
convert it such style.
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
This is nowhere documented and only used
by two other boards. Replace it with
TQMA6_SPI_FLASH_SECTOR_SIZE.
Signed-off-by: Markus Niebel <Markus.Niebel@tq-group.com>
Let's add mx6sabresd_spl_defconfig entry into MAINTAINERS, so that we avoid
getting a warning that the mx6sabresd_spl is not maintained.
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
We can simply the return the value from enable_fec_anatop_clock() to make the
code smaller and simpler.
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
We can simply the return the value from enable_fec_anatop_clock() to make the
code smaller and simpler.
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
When an invalid USDHC port is passed we should return -EINVAL instead of 0.
Also, return the error immediately on fsl_esdhc_initialize() failure.
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
When an invalid USDHC port is passed we should return -EINVAL instead of 0.
Also, return the error immediately on fsl_esdhc_initialize() failure.
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
mx6sabreauto boards come with 32 MiB of parallel NOR flash.
Add support for it:
U-Boot 2015.01-rc1-18107-g1543636-dirty (Nov 14 2014 - 11:11:04)
CPU: Freescale i.MX6Q rev1.2 at 792 MHz
Reset cause: POR
Board: MX6Q-Sabreauto revA
I2C: ready
DRAM: 2 GiB
Flash: 32 MiB
NAND: 0 MiB
Due to pin conflict with I2C3, only define configure I2C3 IOMUX when flash is
not used.
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
