Commit Graph

37578 Commits

Author SHA1 Message Date
Wenyou Yang
c043d8d8ce board: sama5d2_xplained: change SDHCI GCK's clock source to UPLL
Change the clock source of the SDHCI's generated clock from PLLA to
UPLL clock to align to Linux driver.

Signed-off-by: Wenyou Yang <wenyou.yang@atmel.com>
Reviewed-by: Andreas Bießmann <andreas@biessmann.org>
2016-05-24 08:08:37 +02:00
Wenyou Yang
7a91e1a383 ARM: at91: clock: complete the GCK's clock sources
Add the UPLL clock and master clock as a clock source for getting
the generated clock frequency to complete its clock sources support.

Signed-off-by: Wenyou Yang <wenyou.yang@atmel.com>
Reviewed-by: Andreas Bießmann <andreas@biessmann.org>
2016-05-24 08:08:36 +02:00
Wenyou Yang
4adf6a7157 ARM: at91: clock: fix the GCK's clock source
Before enabling a generated clock whose source is from the UPLL
clock, check and enable the UPLL clock.

Signed-off-by: Wenyou Yang <wenyou.yang@atmel.com>
Reviewed-by: Andreas Bießmann <andreas@biessmann.org>
2016-05-24 08:08:36 +02:00
Wenyou Yang
a9c89bf166 board: atmel: sama5d2_xplained: fix the missing pin config of SDMMC0
Fix the missing pin config of the SDMMC0 interface.

Signed-off-by: Wenyou Yang <wenyou.yang@atmel.com>
Reviewed-by: Andreas Bießmann <andreas@biessmann.org>
2016-05-24 08:08:35 +02:00
Wenyou Yang
9989c1567d board: atmel: add SAMA5D2 PTC Engineering board
The board supports following features:
 - Boot media support: NAND Flash/SPI Flash
 - Support ethernet
 - Support USB mass storage

Signed-off-by: Wenyou Yang <wenyou.yang@atmel.com>
Reviewed-by: Andreas Bießmann <andreas@biessmann.org>
2016-05-24 08:08:35 +02:00
Wenyou Yang
cc434ad5c1 ARM: at91: sama5d2: add macro & field definitions
They will be used on SAMA5D2 PTC board.

Signed-off-by: Wenyou Yang <wenyou.yang@atmel.com>
Reviewed-by: Andreas Bießmann <andreas@biessmann.org>
2016-05-24 08:08:35 +02:00
Tom Rini
6d54868eeb Merge branch 'master' of git://git.denx.de/u-boot-x86 2016-05-23 18:32:47 -04:00
Tom Rini
d7d0003112 Merge branch 'master' of git://git.denx.de/u-boot-mips 2016-05-23 11:51:37 -04:00
Masahiro Yamada
d38fca40c8 ARM: fix ifdef in ARMv8 lowlevel_init() again
Commit 116611937f ("ARM: fix ifdefs in ARMv8 lowlevel_init()")
accidentally inverted the logic of CONFIG_ARMV8_MULTIENTRY.

Fixes: 116611937f ("ARM: fix ifdefs in ARMv8 lowlevel_init()")
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Stephen Warren <swarren@nvidia.com>
2016-05-23 11:51:27 -04:00
Tom Rini
d550e82e4e SPL: fat: Fix spl_parse_image_header() return value handling
The spl_parse_image_header() can return 0 and it is not an error.
Only treat non-zero return value as an error.

Signed-off-by: Marek Vasut <marex@denx.de>
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
Reviewed-by: Peng Fan <van.freenix@gmail.com>
Reviewed-by: Stefano Babic <sbabic@denx.de>
Reviewed-by: Tom Rini <trini@konsulko.com>
2016-05-23 11:51:13 -04:00
Martin Hejnfelt
5f89a15e16 omap3: Fix SPI registers on am33xx and am43xx
When the base registers are read from device tree the base is not
0x48030100 as the driver expects, but 0x48030000, resulting in
non functioning SPI. To deal with this, use same idea as how this
is done in the linux kernel (drivers/spi/spi-omap2-mcspi.c) and
add a structure with a field that is used to shift the registers
on these systems.

v2: Fixed commit subject line to correct cpu

Signed-off-by: Martin Hejnfelt <mh@newtec.dk>
2016-05-23 11:50:22 -04:00
Tom Rini
c1420f8b2b kbuild: fixdep: Check fstat(2) return value
Coverity has recently added a check that will find when we don't check
the return code from fstat(2).  Copy/paste the checking logic that
print_deps() has with an appropriate re-wording of the perror() message.

[ Linux commit : 46fe94ad18aa7ce6b3dad8c035fb538942020f2b ]

Signed-off-by: Tom Rini <trini@konsulko.com>
Signed-off-by: Michal Marek <mmarek@suse.com>
2016-05-23 11:50:21 -04:00
Michal Simek
c409bd015c spl: Setup default value for OF_LIST
OF_LIST can't remain empty that's why setup it up to default DTB.

If it is empty u-boot.img is created without FDT partition:
For example:
  ./tools/mkimage -f auto -A arm -T firmware -C none -O u-boot -a
0x8000000 -e 0 -n "U-Boot 2016.05-rc3 ..." -E -b  -d u-boot-nodtb.bin u-boot.img
Can't set 'timestamp' property for '' node (FDT_ERR_NOSPACE)
FIT description: Firmware image with one or more FDT blobs
Created:         Wed May  4 15:02:52 2016
 Image 0 (firmware@1)
  Description:  U-Boot 2016.05-rc3-00080-gff2e12ae22a8-dirty for zynqmp
board
  Created:      Wed May  4 15:02:52 2016
  Type:         Firmware
  Compression:  uncompressed
  Data Size:    unavailable
  Architecture: ARM
  Load Address: 0x08000000
 Default Configuration: 'conf@1'
 Configuration 0 (conf@1)
  Description:  unavailable
  Kernel:       unavailable

And then image like this doesn't contain description and link to FDT and
can't boot.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
2016-05-23 11:50:21 -04:00
Michal Simek
5adfa26579 spl: fit: Print error message when FDT is not present
When FDT is not present in the image user doesn't get any error what's
wrong. Print error message if LIBCOMMON_SUPPORT is enabled.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Seris-cc: uboot
Reviewed-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2016-05-23 11:50:20 -04:00
Simon Glass
bd6e142094 mkimage: Add a quiet mode
Some build systems want to be quiet unless there is a problem. At present
mkimage displays quite a bit of information when generating a FIT file. Add
a '-q' flag to silence this.

Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
2016-05-23 11:50:19 -04:00
Simon Glass
8df81e17f8 image-fit: Don't display an error in fit_set_timestamp()
This function returns an error code and its caller may be able to fix the
error. For example fit_handle_file() expands the device tree to fit if there
is a lack of space.

In this case the caller does not want an error displayed. It is confusing,
since it suggests that something is wrong, when it fact everything is fine.
Drop the error.

Signed-off-by: Simon Glass <sjg@chromium.org>
2016-05-23 11:50:18 -04:00
Stephen Warren
034eda867f malloc: improve memalign fragmentation fix
Commit 4f144a4164 "malloc: work around some memalign fragmentation
issues" enhanced memalign() so that it can succeed in more cases where
heap fragmentation is present. However, it did not solve as many cases
as it could. This patch enhances the code to cover more cases.

The alignment code works by allocating more space than the user requests,
then adjusting the returned pointer to achieve alignment. In general, one
must allocate "alignment" bytes more than the user requested in order to
guarantee that alignment is possible. This is what the original code does.
The previous enhancement attempted a second allocation if the padded
allocation failed, and succeeded if that allocation just happened to be
aligned; a fluke that happened often in practice. There are still cases
where this could fail, yet where it is still possible to honor the user's
allocation request. In particular, if the heap contains a free region that
is large enough for the user's request, and for leading padding to ensure
alignment, but has no or little space for any trailing padding. In this
case, we can make a third(!) allocation attempt after calculating exactly
the size of the leading padding required to achieve alignment, which is
the minimal over-allocation needed for the overall memalign() operation to
succeed if the third and second allocations end up at the same location.

This patch isn't checkpatch-clean, since it conforms to the existing
coding style in dlmalloc.c, which is different to the rest of U-Boot.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
2016-05-23 11:50:17 -04:00
Bin Meng
8216b11cdd x86: galileo: Override SMBIOS product name
Override the default product name U-Boot reports in the SMBIOS
table, to be compatible with the Intel provided UEFI BIOS, as
Linux kernel drivers (drivers/mfd/intel_quark_i2c_gpio.c and
drivers/net/ethernet/stmicro/stmmac/stmmac_pci.c) make use of
it to do different board level configuration.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2016-05-23 15:27:43 +08:00
Bin Meng
4cdce9f5b4 x86: Switch to use SMBIOS Kconfig options when writing SMBIOS tables
Make use of the newly added Kconfig options of board manufacturer
and product name to write SMBIOS tables.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2016-05-23 15:27:42 +08:00
Bin Meng
5ce378cfcf x86: kconfig: Add two options for SMBIOS manufacturer and product name
This introduces two Kconfig options to be used by SMBIOS tables:
board manufacturer and product name.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2016-05-23 15:27:42 +08:00
Bin Meng
84c299940d x86: galileo: Enable MP table generation
Now that we have added CPU uclass driver and fixed the IOAPIC ID
conflict, enable MP table generation so that IOAPIC can be used
by the Linux kernel.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2016-05-23 15:27:42 +08:00
Bin Meng
b813ea9a14 x86: broadwell: Correct I/O APIC ID
Currently ID 2 is assgined to broadwell I/O APIC, however per
chromebook_samus.dts 2 is the core#2 LAPIC ID. Now we change
I/O APIC ID to 4 to avoid conflict.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2016-05-23 15:27:42 +08:00
Bin Meng
911d6f6932 x86: quark: Assign a unique I/O APIC ID
After power-on, both LAPIC and I/O APIC appear with the same APIC ID
zero, which creates an ID conflict. When generating MP table, U-Boot
reports zero as the LAPIC ID in the processor entry, and zero as the
I/O APIC ID in the I/O APIC as well as the I/O interrupt assignment
entries. Such MP table confuses Linux kernel and finally a kernel
panic is seen during boot:

  BUG: unable to handle kernel paging request at ffff9000
  IP: [<c101d462>] native_io_apic_write+0x22/0x30
  *pdpt = 00000000014fb001 *pde = 00000000014ff067 *pte = 0000000000000000
  Oops: 0002 [#1]
  Modules linked in:
  Pid: 1, comm: swapper Tainted: G        W    3.8.7 #3 intel galileo/galileo
  EIP: 0060:[<c101d462>] EFLAGS: 00010086 CPU: 0
  EIP is at native_io_apic_write+0x22/0x30
  ...
  Kernel panic - not syncing: Attempted to kill init! exitcode=0x00000009

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2016-05-23 15:27:42 +08:00
Bin Meng
e2126711af x86: Call lapic_setup() in interrupt_init()
Let's configure LAPIC in a common place - interrupt_init().

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2016-05-23 15:27:41 +08:00
Bin Meng
aaaa55751a x86: Remove SMP limitation in lapic_setup()
At present LAPIC is enabled and configured as virtual wire mode
in lapic_setup() only when CONFIG_SMP is on. This limitation is
however not necessary as for uniprocessor this is still needed.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2016-05-23 15:27:41 +08:00
Bin Meng
3299be2479 x86: Don't touch IA32_APIC_BASE MSR on Intel Quark
Intel Quark processor core provides an integrated Local APIC but
does not support the IA32_APIC_BASE MSR. As a result, the Local
APIC is always globally enabled and the Local APIC base address
is fixed at 0xfee00000. Attempting to access the IA32_APIC_BASE
MSR causes a general protection fault.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2016-05-23 15:27:41 +08:00
Bin Meng
0ac8d5e552 x86: galileo: Enable CPU driver
Add a cpu node in the device tree and enable CPU driver.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2016-05-23 15:27:41 +08:00
Bin Meng
bab4b96166 x86: Use latest microcode for all BayTrail boards
Update board device tree to include latest microcode, and remove
the old no longer needed microcode.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Stefan Roese <sr@denx.de>
2016-05-23 15:26:46 +08:00
Bin Meng
c88f508f69 x86: baytrail: Update to latest microcode
Update BayTrail microcde to rev 325 (for CPUID 30673), rev 907
(for CPUID 30679).

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2016-05-23 15:24:24 +08:00
Bin Meng
5c60a3abde x86: Add some notes for MRC cache with Intel FSP
MRC cache relies on Intel FSP to produce a special GUID that
contains the MRC cache data. Add such information in the
CONFIG_ENABLE_MRC_CACHE help entry.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2016-05-23 15:18:00 +08:00
Bin Meng
2baf3a5584 x86: crownbay: Disable boot stage support
It is observed that when enabling boot stage support, occasionally
the board reboots during boot over and over again, and eventually
boots to shell. This was seen on my board, but not on Jian's board.
Debugging shows that the TSC timer calibration against PIT fails
as boot stage APIs utilize timer in a very early stage and at that
time TSC/PIT may not be stable enough for the calibration to pass.

Disable it for now.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Cc: Jian Luo <Jian.Luo4@boschrexroth.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
2016-05-23 15:18:00 +08:00
Bin Meng
0fbdaa0e07 acpi: Clean IASL generated intermediate files
For boards that support ACPI, there are dsdt.aml, dsdt.asl.tmp and
dsdt.c in the board directory after a successful build. These are
intermediate files generated by IASL, and should be removed during
a 'make clean'.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2016-05-23 15:18:00 +08:00
Bin Meng
efd4be4c82 x86: doc: Add porting hints for ACPI with Windows
Windows might cache system information and only detect ACPI changes
if you modify the ACPI table versions.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2016-05-23 15:18:00 +08:00
Bin Meng
7bfe0da4d2 x86: baytrail: Add GPIO ASL description
Since BayTrail, Intel starts to use new GPIO IPs in their chipset.
This adds the GPIO ASL, so that OS can load corresponding drivers
for it. On Linux, this is BayTrail pinctrl driver.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2016-05-23 15:18:00 +08:00
Bin Meng
fa427438bd x86: baytrail: Add internal UART ASL description
BayTrail integrates an internal ns15550 compatible UART (PNP0501).
Its IRQ is hardwired to IRQ3 in old revision chipset, but in newer
revision one IRQ4 is being used for ISA compatibility. Handle this
correctly in the ASL file.

Linux does not need this ASL, but Windows need this to correctly
discover a COM port existing in the system so that Windows can
show it in the 'Device Manager' window, and expose this COM port
to any terminal emulation application.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2016-05-23 15:18:00 +08:00
Bin Meng
bb68dd528f acpi: Quieten IASL output when 'make -s' is used
IASL compiler does not provide a command line option to turn off
its non-warning message. To quieten the output when 'make -s',
redirect its output to /dev/null.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2016-05-23 15:18:00 +08:00
Bin Meng
206a3a4246 x86: doc: Mention Ubuntu/Windows installation and boot support
As of now, U-Boot can support installing and booting Ubuntu/Windows
with the help of SeaBIOS. Update the documentation.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2016-05-23 15:18:00 +08:00
Bin Meng
da944391e8 x86: baytrail: Enable SeaBIOS on all boards
SeaBIOS can be loaded by U-Boot to aid the installation of Ubuntu
and Windows to a SATA drive and boot from there. Enable it on all
BayTrail boards.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2016-05-23 15:18:00 +08:00
Bin Meng
5a6a2c714e x86: doc: Update information about IGD with SeaBIOS
Document how to make SeaBIOS load and run the VGA ROM of Intel
IGD device when loaded by U-Boot.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2016-05-23 15:18:00 +08:00
Bin Meng
10fcabed88 x86: acpi: Remove header length check when writing tables
Before moving 'current' pointer during ACPI table writing, we always
check the table length to see if it is larger than the table header.
Since our purpose is to generate valid tables, the check logic is
always true, which can be avoided.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2016-05-23 15:18:00 +08:00
Bin Meng
17b63c80bf x86: acpi: Remove the unnecessary checksum calculation of DSDT
The generated AmlCode[] from IASL already has the calculated DSDT
table checksum in place. No need for us to calculate it again.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2016-05-23 15:18:00 +08:00
Bin Meng
6aef68dc36 x86: acpi: Switch to ACPI mode by ourselves instead of requested by OSPM
Per ACPI spec, during ACPI OS initialization, OSPM can determine
that the ACPI hardware registers are owned by SMI (by way of the
SCI_EN bit in the PM1_CNT register), in which case the ACPI OS
issues the ACPI_ENABLE command to the SMI_CMD port. The SCI_EN bit
effectively tracks the ownership of the ACPI hardware registers.

However since U-Boot does not support SMI, we report all 3 fields
in FADT (SMI_CMD, ACPI_ENABLE, ACPI_DISABLE) as zero, by following
the spec who says: these fields are reserved and must be zero on
system that does not support System Management mode.

U-Boot seems to behave in a correct way that the ACPI spec allows,
at least Linux does not complain, but apparently Windows does not
think so. During Windows bring up debugging, it is observed that
even these 3 fields are zero, Windows are still trying to issue SMI
with hardcoded SMI port address and commands, and expecting SCI_EN
to be changed by the firmware. Eventually Windows gives us a BSOD
(Blue Screen of Death) saying ACPI_BIOS_ERROR and refuses to start.

To fix this, turn on the SCI_EN bit by ourselves. With this patch,
now U-Boot can install and boot Windows 8.1/10 successfully with
the help of SeaBIOS using legacy interface (non-UEFI mode).

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2016-05-23 15:18:00 +08:00
Bin Meng
644a76742c x86: Use high_table_malloc() for tables passing to SeaBIOS
Now that we already reserved high memory for configuration tables,
call high_table_malloc() to allocate tables from the region.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2016-05-23 15:18:00 +08:00
Bin Meng
d19c90747d x86: Reserve configuration tables in high memory
When SeaBIOS is on, reserve configuration tables in reserve_arch().

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2016-05-23 15:18:00 +08:00
Bin Meng
0c2b7eef97 x86: Unify reserve_arch() for all x86 boards
Instead of asking each platform to provide reserve_arch(),
supply it in arch/x86/cpu/cpu.c in a unified way.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2016-05-23 15:18:00 +08:00
Bin Meng
789b6dcecc x86: Prepare configuration tables in dedicated high memory region
Currently when CONFIG_SEABIOS is on, U-Boot allocates configuration
tables via normal malloc(). To simplify, use a dedicated memory
region which is reserved on the stack before relocation for this
purpose. Add functions for reserve and malloc.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2016-05-23 15:18:00 +08:00
Bin Meng
548344912f x86: Compile coreboot_table.c only for SeaBIOS
coreboot_table.c only needs to be built when SeaBIOS is used.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2016-05-23 15:18:00 +08:00
Bin Meng
10d569ea1a x86: Fix up PIRQ routing table checksum earlier
PIRQ routing table checksum is fixed up in copy_pirq_routing_table(),
which is fine if we only write the configuration table once. But with
the SeaBIOS case, when we write the table for the second time, the
checksum will be fixed up to zero per the checksum algorithm, which
is caused by the checksum field not being zero before fix up, since
the checksum has already been calculated in the first run.

To fix this, move the checksum fixup to create_pirq_routing_table(),
so that copy_pirq_routing_table() only does what its function name
suggests: copy the table to somewhere else.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2016-05-23 15:18:00 +08:00
Bin Meng
1e2f7b9e8e x86: Call board_final_cleanup() in last_stage_init()
At present board_final_cleanup() is called before booting a Linux
kernel. This actually needs to be done before booting anything,
like SeaBIOS, VxWorks or Windows.

Move the call to last_stage_init() instead.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2016-05-23 15:18:00 +08:00
Bin Meng
91fc5bf652 x86: minnowmax: Adjust U-Boot environment address in SPI flash
Currently U-Boot environment address is at offset 0x7fe00 of a 8MB
SPI flash. When creating a partial u-boot.rom image without flash
descriptor and ME firmware, U-Boot actually occupies the last 1MB
of the flash, and reprograming U-Boot causes previous environment
settings get lost which is not convenient during testing.

Adjust the environment address to 0x6ef000 instead (before the MRC
cache data region in the flash).

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Stefan Roese <sr@denx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
2016-05-23 15:18:00 +08:00