Commit graph

206 commits

Author SHA1 Message Date
Tom Rini
aa6e94deab global: Move remaining CONFIG_SYS_SDRAM_* to CFG_SYS_SDRAM_*
The rest of the unmigrated CONFIG symbols in the CONFIG_SYS_SDRAM
namespace do not easily transition to Kconfig. In many cases they likely
should come from the device tree instead. Move these out of CONFIG
namespace and in to CFG namespace.

Signed-off-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2022-12-05 16:06:07 -05:00
Paul Barker
390d9e2c8c board: ti: am335x: Use correct dtbs for SanCloud boards
We have different dtbs for the Lite and Extended WiFi variants of the
SanCloud BBE.

Signed-off-by: Paul Barker <paul.barker@sancloud.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
2022-07-25 13:02:03 -04:00
Paul Barker
21acb843db board: ti: am335x: Enable spi0 bus on SanCloud BBE Lite
The SanCloud BBE Lite has a Micron Authenta flash device connected to
the spi0 bus.

Signed-off-by: Paul Barker <paul.barker@sancloud.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
2022-07-25 13:02:03 -04:00
Andrew Scull
99e2fbcb69 linker_lists: Rename sections to remove . prefix
Rename the sections used to implement linker lists so they begin with
'__u_boot_list' rather than '.u_boot_list'. The double underscore at the
start is still distinct from the single underscore used by the symbol
names.

Having a '.' in the section names conflicts with clang's ASAN
instrumentation which tries to add redzones between the linker list
elements, causing expected accesses to fail. However, clang doesn't try
to add redzones to user sections, which are names with all alphanumeric
and underscore characters.

Signed-off-by: Andrew Scull <ascull@google.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2022-06-23 12:58:18 -04:00
Corentin LABBE
2f51f946e3 board: ti: am335x: eth_cpsw should depend on CONFIG_NET
The origin of this patch is the breaking of am335x-hs boot
due to commit e41651fffd ("dm: Support parent devices with of-platdata")
HS boards have less SRAM for SPL and so this commit increased memory usage beyond am335x limit.
This commit added 10 driver binding pass and am335x boot only if one pass is done.
SPL try to do more than one pass due to eth_cpsw failing.
Since HS SPL does not need network (and NET is already disabled in config),
the easiest fix is to "remove" eth_cpsw from SPL by testing if NET is enabled.

Signed-off-by: Corentin LABBE <clabbe@baylibre.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
Acked-by: Andrew Davis <afd@ti.com>
2022-06-16 15:22:55 -04:00
Paul Barker
a95cd68d51 board: ti: am335x: Add support for BBE Extended WiFi
The Sancloud BeagleBone Enhanced Extended WiFi (BBE Extended WiFi) has
its own devicetree file and the board can be identified by the 2nd
letter of the config string within the common EEPROM.

Signed-off-by: Paul Barker <paul.barker@sancloud.com>
2022-04-21 09:08:57 -04:00
Paul Barker
cde726442b board: ti: am335x: Add BBE Lite support
The Sancloud BeagleBone Enhanced Lite (BBE Lite) has its own devicetree
file and the board can be identified by the 2nd letter of the config
string within the common EEPROM.

Signed-off-by: Paul Barker <paul.barker@sancloud.com>
2022-04-21 09:08:57 -04:00
Amjad Ouled-Ameur
609983e981 board: ti: am335x: Choose CPSW or PRUSS configuration based on jumper setting
The am335x-ice-v2 board's Ethernet ports can be configured
in 'MII' or 'RMII' mode to be connected to 'PRUSS' or 'CPSW'
Ethernet subsystems.

This patch sets the environment variable 'ice_mii' to
'mii' or 'rmii' accordingly. Based on that we choose the
appropriate board devicetree i.e. 'am335x-ice-v2.dtb' or
'am335x-ice-v2-prueth.dtb'.

Since there are 2 Ethernet ports with 2 modes, there can be 4
configurations but for now we consider both ports in different modes
to be an invalid configuration and prevent boot in that case.

Signed-off-by: Roger Quadros <rogerq@ti.com>
[Amjad: use overlay instead of using new am335x-ice-v2-prueth.dtb]
Signed-off-by: Amjad Ouled-Ameur <aouledameur@baylibre.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
[trini: Make prueth_is_mii be marked __maybe_unused]
Signed-off-by: Tom Rini <trini@konsulko.com>
2022-01-16 08:31:03 -05:00
Tom Rini
c8fff5d2b5 doc: ti: Convert am335x_evm README to rST
Convert the existing documentation to rST, keeping to just making
formatting changes to start with.

Signed-off-by: Tom Rini <trini@konsulko.com>
2021-09-27 17:27:41 -04:00
Simon Glass
2a73606668 serial: Rename SERIAL_SUPPORT to SERIAL
Rename these options so that CONFIG_IS_ENABLED can be used with them.

Signed-off-by: Simon Glass <sjg@chromium.org>
2021-09-04 12:26:01 -04:00
Tom Rini
a2ac2b964b Convert CONFIG_SKIP_LOWLEVEL_INIT et al to Kconfig
This converts the following to Kconfig:
   CONFIG_SKIP_LOWLEVEL_INIT
   CONFIG_SKIP_LOWLEVEL_INIT_ONLY

In order to do this, we need to introduce SPL and TPL variants of these
options so that we can clearly disable these options only in SPL in some
cases, and both instances in other cases.

Signed-off-by: Tom Rini <trini@konsulko.com>
2021-08-31 17:47:49 -04:00
Tom Rini
bbd94278d1 am335x: Drop non-DM_I2C code
On this platform, we have DM_I2C and SPL_DM_I2C always enabled.  Remove
legacy options.

Signed-off-by: Tom Rini <trini@konsulko.com>
2021-08-30 14:10:07 -04:00
Tom Rini
38436abd5e Merge tag 'ti-v2021.10-rc2' of https://source.denx.de/u-boot/custodians/u-boot-ti
- Add MMC High speed modes for AM64 and J7200
- Add Sierra/Torrent SERDES driver
- Minor clean-ups for R5F boot from SPL
2021-07-29 08:20:06 -04:00
Simon Glass
f2d7a36ec2 Rename SPL_ETH_SUPPORT to SPL_ETH
Rename this option so that CONFIG_IS_ENABLED can be used with it.

Signed-off-by: Simon Glass <sjg@chromium.org>
2021-07-28 14:27:54 -04:00
Paul Barker
124b3030f5 arm: dts: Import am335x-sancloud-bbe devicetree
This device tree is imported from Linux 5.13.1 and enabled via the
am335x board file and the am335x evm defconfig.

Signed-off-by: Paul Barker <paul.barker@sancloud.com>
2021-07-27 10:56:09 +05:30
Lokesh Vutla
481d394e77 common: fit: Update board_fit_image_post_process() to pass fit and node_offset
board_fit_image_post_process() passes only start and size of the image,
but type of the image is not passed. So pass fit and node_offset, to
derive information about image to be processed.

Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
Signed-off-by: Tero Kristo <kristo@kernel.org>
2021-06-11 16:34:52 +05:30
Kory Maincent
1569847e7c am335x: add support for cape detect functionality
Update the Kconfig and the board file to make the am335x board compatible
with cape detection.

Signed-off-by: Kory Maincent <kory.maincent@bootlin.com>
2021-05-13 13:09:09 -04:00
Kory Maincent
d705527a89 arm: am335x: add support for i2c2 bus
The am335x from BeagleBone use i2c EEPROM to detect capes.
The memory is wired to i2c bus 2 therefore it need to be enabled.

Add i2c2 clock, pinmux description and pinmux enable function.

Signed-off-by: Kory Maincent <kory.maincent@bootlin.com>
2021-05-13 13:09:09 -04:00
Igor Opaniuk
2147a16983 dm: i2c: use CONFIG_IS_ENABLED macro for DM_I2C/DM_I2C_GPIO
Use CONFIG_IS_ENABLED() macro, which provides more convenient
way to check $(SPL)DM_I2C/$(SPL)DM_I2C_GPIO configs
for both SPL and U-Boot proper.

CONFIG_IS_ENABLED(DM_I2C) expands to:
- 1 if CONFIG_SPL_BUILD is undefined and CONFIG_DM_I2C is set to 'y',
- 1 if CONFIG_SPL_BUILD is defined and CONFIG_SPL_DM_I2C is set to 'y',
- 0 otherwise.

All occurences were replaced automatically using these bash cmds:
$ find . -type f -exec sed -i
     's/ifndef CONFIG_DM_I2C/if !CONFIG_IS_ENABLED(DM_I2C)/g' {} +
$ find . -type f -exec sed -i
    's/ifdef CONFIG_DM_I2C/if CONFIG_IS_ENABLED(DM_I2C)/g' {} +
$ find . -type f -exec sed -i
    's/defined(CONFIG_DM_I2C)/CONFIG_IS_ENABLED(DM_I2C)/g' {} +
$ find . -type f -exec sed -i
    's/ifndef CONFIG_DM_I2C_GPIO/if !CONFIG_IS_ENABLED(DM_I2C_GPIO)/g' {} +
$ find . -type f -exec sed -i
    's/ifdef CONFIG_DM_I2C_GPIO/if CONFIG_IS_ENABLED(DM_I2C_GPIO)/g' {} +
$ find . -type f -exec sed -i
    's/defined(CONFIG_DM_I2C_GPIO)/CONFIG_IS_ENABLED(DM_I2C_GPIO)/g' {} +

Reviewed-by: Heiko Schocher <hs@denx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Igor Opaniuk <igor.opaniuk@foundries.io>
Reviewed-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Priyanka Jain <priyanka.jain@nxp.com>
2021-02-21 06:08:00 +01:00
Simon Glass
401d1c4f5d common: Drop asm/global_data.h from common header
Move this out of the common header and include it only where needed.  In
a number of cases this requires adding "struct udevice;" to avoid adding
another large header or in other cases replacing / adding missing header
files that had been pulled in, very indirectly.   Finally, we have a few
cases where we did not need to include <asm/global_data.h> at all, so
remove that include.

Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Rini <trini@konsulko.com>
2021-02-02 15:33:42 -05:00
Dario Binacchi
ba149a5b7b board: ti: am335x-ice: get CDCE913 clock device
With support for other clock drivers, the potentially supported CDCE913
device can no longer be probed without specifying its DT node name.

Signed-off-by: Dario Binacchi <dariobin@libero.it>
2021-01-12 10:59:04 +05:30
Simon Glass
20e442ab2d dm: Rename U_BOOT_DEVICE() to U_BOOT_DRVINFO()
The current macro is a misnomer since it does not declare a device
directly. Instead, it declares driver_info record which U-Boot uses at
runtime to create a device.

The distinction seems somewhat minor most of the time, but is becomes
quite confusing when we actually want to declare a device, with
of-platdata. We are left trying to distinguish between a device which
isn't actually device, and a device that is (perhaps an 'instance'?)

It seems better to rename this macro to describe what it actually is. The
macros is not widely used, since boards should use devicetree to declare
devices.

Rename it to U_BOOT_DRVINFO(), which indicates clearly that this is
declaring a new driver_info record, not a device.

Signed-off-by: Simon Glass <sjg@chromium.org>
2021-01-05 12:26:35 -07:00
Simon Glass
8a8d24bdf1 dm: treewide: Rename ..._platdata variables to just ..._plat
Try to maintain some consistency between these variables by using _plat as
a suffix for them.

Signed-off-by: Simon Glass <sjg@chromium.org>
2020-12-13 16:51:09 -07:00
Simon Glass
caa4daa2ae dm: treewide: Rename 'platdata' variables to just 'plat'
We use 'priv' for private data but often use 'platdata' for platform data.
We can't really use 'pdata' since that is ambiguous (it could mean private
or platform data).

Rename some of the latter variables to end with 'plat' for consistency.

Signed-off-by: Simon Glass <sjg@chromium.org>
2020-12-13 16:51:08 -07:00
Faiz Abbas
5ba2883160 configs: Add spiboot support for am335x
am335x internal SRAM is too small to support the addition of
SPI bootmode to the default defconfig. Add a separate spiboot_defconfig

Signed-off-by: Faiz Abbas <faiz_abbas@ti.com>
2020-09-15 18:51:53 +05:30
Masahiro Yamada
b75d8dc564 treewide: convert bd_t to struct bd_info by coccinelle
The Linux coding style guide (Documentation/process/coding-style.rst)
clearly says:

  It's a **mistake** to use typedef for structures and pointers.

Besides, using typedef for structures is annoying when you try to make
headers self-contained.

Let's say you have the following function declaration in a header:

  void foo(bd_t *bd);

This is not self-contained since bd_t is not defined.

To tell the compiler what 'bd_t' is, you need to include <asm/u-boot.h>

  #include <asm/u-boot.h>
  void foo(bd_t *bd);

Then, the include direcective pulls in more bloat needlessly.

If you use 'struct bd_info' instead, it is enough to put a forward
declaration as follows:

  struct bd_info;
  void foo(struct bd_info *bd);

Right, typedef'ing bd_t is a mistake.

I used coccinelle to generate this commit.

The semantic patch that makes this change is as follows:

  <smpl>
  @@
  typedef bd_t;
  @@
  -bd_t
  +struct bd_info
  </smpl>

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2020-07-17 09:30:13 -04:00
Tom Rini
a3e7750d58 am335x: Update list of defconfigs
Both the am335x_boneblack and am335x_evm_usbspl configs have been gone
for a while, remove their entries from MAINTAINERS.

Signed-off-by: Tom Rini <trini@konsulko.com>
2020-06-30 13:09:26 -04:00
Tom Rini
f18f823c13 board: ti: am335x_evm: Remove duplicate setting of bd_ram_ofs member
With clang we get a report that we are setting this member twice.
Fortunately it is to the same value, so drop the hard-coded value line.

Signed-off-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Grygorii Strashko <grygorii.strashko@ti.com>
2020-06-16 17:00:02 +05:30
Simon Glass
cd93d625fd common: Drop linux/bitops.h from common header
Move this uncommon header out of the common header.

Signed-off-by: Simon Glass <sjg@chromium.org>
2020-05-18 21:19:23 -04:00
Simon Glass
c05ed00afb common: Drop linux/delay.h from common header
Move this uncommon header out of the common header.

Signed-off-by: Simon Glass <sjg@chromium.org>
2020-05-18 21:19:23 -04:00
Simon Glass
4d72caa5b9 common: Drop image.h from common header
Move this uncommon header out of the common header.

Signed-off-by: Simon Glass <sjg@chromium.org>
2020-05-18 17:33:33 -04:00
Simon Glass
90526e9fba common: Drop net.h from common header
Move this header out of the common header. Network support is used in
quite a few places but it still does not warrant blanket inclusion.

Note that this net.h header itself has quite a lot in it. It could be
split into the driver-mode support, functions, structures, checksumming,
etc.

Signed-off-by: Simon Glass <sjg@chromium.org>
2020-05-18 17:33:31 -04:00
Simon Glass
336d4615f8 dm: core: Create a new header file for 'compat' features
At present dm/device.h includes the linux-compatible features. This
requires including linux/compat.h which in turn includes a lot of headers.
One of these is malloc.h which we thus end up including in every file in
U-Boot. Apart from the inefficiency of this, it is problematic for sandbox
which needs to use the system malloc() in some files.

Move the compatibility features into a separate header file.

Signed-off-by: Simon Glass <sjg@chromium.org>
2020-02-05 19:33:46 -07:00
Miquel Raynal
88718be300 mtd: rename CONFIG_NAND -> CONFIG_MTD_RAW_NAND
Add more clarity by changing the Kconfig entry name.

Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
[trini: Re-run migration, update a few more cases]
Signed-off-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Boris Brezillon <boris.brezillon@bootlin.com>
2019-12-03 23:04:10 -05:00
Simon Glass
5255932f01 common: Move some board functions out of common.h
A number of board function belong in init.h with the others. Move them.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Tom Rini <trini@konsulko.com>
2019-12-02 18:25:21 -05:00
Tero Kristo
752a45a153 board: ti: am335x-ice: Configure the CDCE913 clock synthesizer
AM335x-ICE boards contain the CDCE913 clock synthesizer, and their
reset crystal capacitance load value of 10pF is wrong leading into
lost packets in certain networking tests. Add DT data for this
device, and probe it from the board file to program the crystal
capacitance load value to 0pF to avoid any problems.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
2019-10-11 13:32:39 -04:00
Simon Glass
f3998fdc4d env: Rename environment.h to env_internal.h
This file contains lots of internal details about the environment. Most
code can include env.h instead, calling the functions there as needed.

Rename this file and add a comment at the top to indicate its internal
nature.

Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
Reviewed-by: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com>
[trini: Fixup apalis-tk1.c]
Signed-off-by: Tom Rini <trini@konsulko.com>
2019-08-11 19:27:31 -04:00
Simon Glass
e7dcf5645f env: Drop environment.h header file where not needed
This header file is now only used by files that access internal
environment features. Drop it from various places where it is not needed.

Acked-by: Joe Hershberger <joe.hershberger@ni.com>
Signed-off-by: Simon Glass <sjg@chromium.org>
2019-08-11 16:43:41 -04:00
Simon Glass
4bfd1f5d62 env: Move env_init() to env.h
Move env_init() over to the new header file.

Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
2019-08-11 16:43:41 -04:00
Jean-Jacques Hiblot
c5646270d1 board: am335x/mux: configure the pins for 8-bit data transfer on MMC1
This is required for proper operation of the 8-bit data transfers.
This fixes transient errors seen on BeagleBone Black.

Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>
2019-06-05 12:14:02 -04:00
Paul Barker
bb7b45a356 board: am335x: Drop duplicate pinmux configuration
In commit ad6054f1fe where support for the
Sancloud BeagleBone Enhanced (BBE) was added, new conditional
configuration of either MII pin muxing or RGMII pin muxing is done
depending on the board type. However, the old call to set up MII pin
muxing was not removed.

This may result in misconfiguration of the pin muxing for the BBE or
duplicate configuration for other boards and so we remove this obsolete
call.

Signed-off-by: Paul Barker <paul.barker@sancloud.co.uk>
2019-05-03 07:23:17 -04:00
Faiz Abbas
55f8b70fee board: ti: am335x: Remove non DM_ETH code
With DM_ETH enabled in am335x devices, remove all the unused
non-DM code.

Signed-off-by: Faiz Abbas <faiz_abbas@ti.com>
2019-04-12 08:05:55 -04:00
Faiz Abbas
0229c9330d board: ti: am335x: Add platdata for cpsw in SPL
The SPL image overflows when cpsw dt nodes are added and SPL_OF_CONTROL
is enabled. Use static platdata instead to save space.

Signed-off-by: Faiz Abbas <faiz_abbas@ti.com>
2019-04-12 08:05:54 -04:00
Vignesh R
311e658ef3 configs: Remove unused am335x_evm defconfigs
These defconfigs don't seem be actively used any more, and have not been
moved to adapt DM or DT. Therefore delete them.

Signed-off-by: Vignesh R <vigneshr@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
2019-01-18 09:26:14 -05:00
Jean-Jacques Hiblot
1514244cc1 ti: remove usage of DM_I2C_COMPAT and don't disable DM_I2C in SPL
DM_I2C_COMPAT is a compatibility layer that allows using the non-DM I2C
API when DM_I2C is used. The goal is to eventually remove DM_I2C_COMPAT
when all I2C "clients" have been migrated to use the DM API.
This a step in that direction for the TI based platforms.
Build tested with buildman:
buildman -dle am33xx ti omap3 omap4 omap5 davinci keystone

boot tested with:
am335x_evm, am335x_boneblack, am335x_boneblack_vboot (DM version),
am57xx_evm, dra7xx_evm, k2g_evm, am437x_evm

Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Heiko Schocher <hs@denx.de>
2018-12-10 07:15:21 +01:00
Sekhar Nori
20c37fb1bf board: ti: am335x: add support to fixup phy address
On beaglebone black, it can so happen that PHY address
is not latched correctly on reset and board boots with
PHY responding to a different address than that
programmed in device-tree. For example, see this report:

https://groups.google.com/d/msg/beagleboard/9mctrG26Mc8/1FuI_i5KW10J

Workaround this by fixing up device-tree passed to kernel
by using the PHY address detected in hardware.

Beaglebone itself uses only one ethernet port and its DT
currently uses phy_id (obsoleted). But the function has
been written to handle multiple ports and phy_id as well
as phy-handle to make the function more generically useful.

Signed-off-by: Sekhar Nori <nsekhar@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
2018-09-25 21:49:18 -04:00
Koen Kooi
ad6054f1fe Add Beaglebone Enhanced support
The "Beaglebone Enhanced" by Sancloud is based on the Beaglebone Black,
but with the following differences:

 * Gigabit capable PHY
 * Extra USB hub, optional i2c control
 * lps3331ap barometer connected over i2c
 * MPU6050 6 axis MEMS accelerometer/gyro connected over i2c
 * 1GiB DDR3 RAM
 * RTL8723 Wifi/Bluetooth connected over USB

Signed-off-by: Koen Kooi <koen@dominion.thruhere.net>
Reviewed-by: Tom Rini <trini@konsulko.com>
2018-08-03 19:53:01 -04:00
Alexander Graf
7e21fbca26 efi_loader: Rename sections to allow for implicit data
Some times gcc may generate data that is then used within code that may
be part of an efi runtime section. That data could be jump tables,
constants or strings.

In order to make sure we catch these, we need to ensure that gcc emits
them into a section that we can relocate together with all the other
efi runtime bits. This only works if the -ffunction-sections and
-fdata-sections flags are passed and the efi runtime functions are
in a section that starts with ".text".

Up to now we had all efi runtime bits in sections that did not
interfere with the normal section naming scheme, but this forces
us to do so. Hence we need to move the efi_loader text/data/rodata
sections before the global *(.text*) catch-all section.

With this patch in place, we should hopefully have an easier time
to extend the efi runtime functionality in the future.

Signed-off-by: Alexander Graf <agraf@suse.de>
[agraf: Fix x86_64 breakage]
2018-07-25 14:57:44 +02:00
Tom Rini
83d290c56f SPDX: Convert all of our single license tags to Linux Kernel style
When U-Boot started using SPDX tags we were among the early adopters and
there weren't a lot of other examples to borrow from.  So we picked the
area of the file that usually had a full license text and replaced it
with an appropriate SPDX-License-Identifier: entry.  Since then, the
Linux Kernel has adopted SPDX tags and they place it as the very first
line in a file (except where shebangs are used, then it's second line)
and with slightly different comment styles than us.

In part due to community overlap, in part due to better tag visibility
and in part for other minor reasons, switch over to that style.

This commit changes all instances where we have a single declared
license in the tag as both the before and after are identical in tag
contents.  There's also a few places where I found we did not have a tag
and have introduced one.

Signed-off-by: Tom Rini <trini@konsulko.com>
2018-05-07 09:34:12 -04:00
Alex Kiernan
d4bb3b3762 spl: ti: Avoid serial calls when serial support is disabled
If CONFIG_SPL_SERIAL_SUPPORT is not set, then the build will fail:

board/ti/am335x/built-in.o: In function `spl_start_uboot':
board/ti/am335x/board.c:247: undefined reference to `serial_tstc'
board/ti/am335x/board.c:247: undefined reference to `serial_getc'

Avoid the calls to the serial functions in that case.

Signed-off-by: Alex Kiernan <alex.kiernan@gmail.com>
2018-04-28 18:32:23 -04:00