Commit graph

3774 commits

Author SHA1 Message Date
Tom Rini
123b701779 Merge branch 'master' of git://git.denx.de/u-boot-usb 2015-12-17 21:46:04 -05:00
Stephen Warren
e4b70d8035 usb: kbd: don't use int xfers when polling via ctrl xfers
When CONFIG_SYS_USB_EVENT_POLL_VIA_CONTROL_EP is enabled, use a
GET_REPORT control transfer to retrieve the initial state of the
keyboard. This matches the technique used to poll the keyboard state.
This is useful since it eliminates the remaining use of interrupt
transfers from the USB keyboard driver, which allows it to work with
USB HCD that don't support interrupt transfers.

Cc: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
2015-12-17 21:54:41 +01:00
Tom Rini
35065cdd94 Merge git://git.denx.de/u-boot-rockchip 2015-12-16 14:50:03 -05:00
Alexey Brodkin
52bc7c7e2b eeprom: fix eeprom write procedure
This fixes commit 1a37889b0a:
----------------------->8--------------------
eeprom: Pull out the RW loop

Unify the code for doing read/write into single function, since the
code for both the read and write is almost identical. This again
trims down the code duplication.
----------------------->8--------------------

where the same one routine is utilized for both EEPROM writing and
reading. The only difference was supposed to be a "read" flag which
in both cases was set with 1 somehow.

That lead to a missing delay in case of writing which lead to write
failure (in my case no data was written).

Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
Acked-by: Marek Vasut <marex@denx.de>
Cc: Simon Glass <sjg@chromium.org>
Cc: Tom Rini <trini@konsulko.com>
Cc: Heiko Schocher <hs@denx.de>
2015-12-16 10:31:31 -05:00
Tom Rini
e6e3faa5c2 Merge branch 'master' of git://git.denx.de/u-boot-fsl-qoriq 2015-12-14 20:27:23 -05:00
Aneesh Bansal
9711f52806 armv8/ls1043ardb: add SECURE BOOT target for NOR
LS1043ARDB Secure Boot Target from NOR has been added.
- Configs defined to enable esbc_validate.
- ESBC Address in header is made 64 bit.
- SMMU is re-configured in Bypass mode.

Signed-off-by: Aneesh Bansal <aneesh.bansal@freescale.com>
Reviewed-by: York Sun <yorksun@freescale.com>
2015-12-15 08:57:35 +08:00
York Sun
aabd7ddb88 common: Rewrite hiding the end of memory
As the name may be confusing, the CONFIG_SYS_MEM_TOP_HIDE reserves
some memory from the end of ram, tracked by gd->ram_size. It is not
always the top of u-boot visible memory. Rewrite the macro with a
weak function to provide flexibility for complex calcuation. Legacy
use of this macro is still supported.

Signed-off-by: York Sun <yorksun@freescale.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2015-12-15 08:57:33 +08:00
York Sun
e81495224f Reserve secure memory
Secure memory is at the end of memory, separated and reserved
from OS, tracked by gd->secure_ram. Secure memory can host
MMU tables, security monitor, etc. This is different from PRAM
used to reserve private memory. PRAM offers memory at the top
of u-boot memory, not necessarily the real end of memory for
systems with very large DDR. Using the end of memory simplifies
MMU setup and avoid memory fragmentation.

"bdinfo" command shows gd->secure_ram value if this memory is
marked as secured.

Signed-off-by: York Sun <yorksun@freescale.com>
2015-12-15 08:57:32 +08:00
Eric Nelson
5915517b7b spl: mmc: use block device number, not hard-coded 0
In order to support boot from multiple devices through board_boot_order,
it's necessary to use the block number of a device.

The use of a hard-coded 0 for the device number also creates a need
to re-order block devices for use in SPL like this:
	http://git.denx.de/?p=u-boot.git;a=blob;f=board/freescale/mx6slevk/mx6slevk.c;hb=HEAD#l195

Signed-off-by: Eric Nelson <eric@nelint.com>
2015-12-14 13:42:50 -05:00
Stephen Warren
653447b407 part: fix "part list ... -bootable varname" to use hex
Unfortunately U-Boot assumes that almost all numbers are in hex, including
partition numbers passed to e.g. "load". So, the command "part list mmc 0
-bootable devplist" should use hex when writing partition numbers into
$devplist, so they'll be correctly interpreted.

Change-Id: I9a70b19749643876baadb45efbc3decaef8bfee2
Fixes: 0798d6fd41 ("part: Add support for list filtering on bootable partitions")
Cc: Sjoerd Simons <sjoerd.simons@collabora.co.uk>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Reviewed-by: Sjoerd Simons <sjoerd.simons@collabora.co.uk>
2015-12-13 20:22:01 -05:00
Sjoerd Simons
4363de63a8 spl: use panic_str instead of panic
For a simple static string, use panic_str() which prevents calling
printf needlessly.

Signed-off-by: Sjoerd Simons <sjoerd.simons@collabora.co.uk>
Reviewed-by: Simon Glass <sjg@chromium.org>
2015-12-13 17:07:30 -07:00
Nishanth Menon
8405b8d98a common: cli_hush: Fix up simple typo
Correct the spelling for character..

Signed-off-by: Nishanth Menon <nm@ti.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2015-12-12 15:56:10 -05:00
Miao Yan
b3b522f247 VxWorks: fixup MAC address for VxWorks
VxWorks 7 kernels retrieve 'local-mac-addr' from dtb and use
that for NIC MAC address. As a result, when booting the same
kernel image on multiple boards, there will be address
conflicts.

So fixup MAC address when booting VxWorks 7 kernels

Signed-off-by: Miao Yan <yanmiaobest@gmail.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2015-12-12 15:56:08 -05:00
Bin Meng
2317cf0970 common: Remove timer_init() call for x86
With driver model timer support, there should not be an explict
call to timer_init(). Remove this call for x86.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Acked-by: Simon Glass <sjg@chromium.org>
2015-12-09 17:44:49 +08:00
Bin Meng
a0ae380b3c fdt: Change OF_BAD_ADDR to FDT_ADDR_T_NONE
Currently OF_BAD_ADDR is always -1ULL. When using OF_BAD_ADDR as the
return value of dev_get_addr(), it creates potential size mismatch
as dev_get_addr() uses FDT_ADDR_T_NONE as the return value which can
be either -1U or -1ULL depending on CONFIG_PHYS_64BIT. Now we change
OF_BAD_ADDR to FDT_ADDR_T_NONE to avoid such case.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Acked-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Stefan Roese <sr@denx.de>
2015-12-09 17:44:36 +08:00
Tom Rini
cbb2df2018 CONFIG_NEEDS_MANUAL_RELOC: Fix warnings when not set
Now that we may compile (but not link) code calling fixup_cmdtable when
this is not set, we need to always have the declaration available.  We
should also make sure that anyone calling the function includes
<command.h> as that's where the function declaration is.

Signed-off-by: Tom Rini <trini@konsulko.com>
2015-12-07 08:35:23 -05:00
Michal Simek
e4099c8b80 i2c: cmd: Relocate subcommands when MANUAL_RELOC
Subcommands contain pointers to functions which are not updated when
MANUAL_RELOC is enabled. This patch fix it.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Acked-by: Heiko Schocher <hs@denx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
2015-12-07 10:14:30 +01:00
Siva Durga Prasad Paladugu
e9acb9ea43 common: board: Dont relocate FDT incase of CONFIG_OF_EMBED
Don't relocate fdt in case of CONFIG_OF EMBED as the fdt is
already embedded with u-boot image.
Update fdt_blob after relocation as the fdt will be copied
during u-boot relocation.

Signed-off-by: Siva Durga Prasad Paladugu <sivadur@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Reviewed-by: Alexey Brodkin <abrodkin@synopsys.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com> (QEMU x86)
Tested-by: Thomas Chou <thomas@wytron.com.tw> (Nios2)
Acked-by: Thomas Chou <thomas@wytron.com.tw>
Acked-by: Simon Glass <sjg@chromium.org>
2015-12-05 18:22:34 -05:00
Simon Glass
b4857aa901 spl: mmc: Unify non/driver model spl_mmc_find_device()
It is risky to have two different functions with much the same code. Future
authors may update one but not the other. It is hard to see which parts are
the same and which are different.

Unify the functions and drop the differences that are not really needed.

Note that one puts() becomes printf() as Tom mentioned that this does not
affect image size:

https://patchwork.ozlabs.org/patch/537276/

Note: It would be better to have an empty printf() and avoid the #ifdef for
CONFIG_SPL_LIBCOMMON_SUPPORT.

Signed-off-by: Simon Glass <sjg@chromium.org>
Tested-by: Michal Simek <michal.simek@xilinx.com>
2015-12-05 18:22:34 -05:00
Simon Glass
99c7a51a24 spl: mmc: Rename 'mmc' variable to 'mmcp'
The 'p' suffix makes it more obvious that we are dealing with a pointer
to a (pointer) value that will be returned to its caller.

Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Nikita Kiryanov <nikita@compulab.co.il>
Tested-by: Michal Simek <michal.simek@xilinx.com>
2015-12-05 18:22:33 -05:00
Simon Glass
d773a008ee spl: mmc: Fix compiler warning with CONFIG_DM_MMC
Since commit 4188ba3 we get the following warning on rockchip boards:

common/spl/spl_mmc.c:31:24: warning: ‘mmc’ may be used uninitialized in this function [-Wmaybe-uninitialized]
  count = mmc->block_dev.block_read(0, sector, 1, header);
                        ^
common/spl/spl_mmc.c:251:14: note: ‘mmc’ was declared here
  struct mmc *mmc;

Correct this by move the variable init earlier.

Signed-off-by: Simon Glass <sjg@chromium.org>
Tested-by: Michal Simek <michal.simek@xilinx.com>
Acked-by: Nikita Kiryanov <nikita@compulab.co.il>
2015-12-05 18:22:33 -05:00
Peng Fan
c6bb23c819 common: cli_hush: avoid memory leak
Need to free memory avoid memory leak, when error.

Signed-off-by: Peng Fan <Peng.Fan@freescale.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Cc: Simon Glass <sjg@chromium.org>
Cc: Tom Rini <trini@konsulko.com>
2015-12-05 18:22:28 -05:00
Stefan Roese
63ce348d27 common/Makefile: Compile fdt_support is enabled in SPL
When CONFIG_SPL_OF_TRANSLATE is enabled fdt_support.c needs to get
compiled. Otherwise fdt_translate_address() is missing which is needed
in dev_get_addr().

Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Simon Glass <sjg@chromium.org>
Acked-by: Simon Glass <sjg@chromium.org>
2015-12-05 18:22:27 -05:00
Peng Fan
746da1bd42 common: miiphyutil: avoid memory leak
The following code will alloc memory for new_dev and ldev:
"
new_dev = mdio_alloc();
ldev = malloc(sizeof(*ldev));
"
Either new_dev or ldev is NULL, directly return, but this may leak memory.
So before return, using free(ldev) and mdio_free(new_dev) to avoid
leaking memory, also free can handle NULL pointer.

Signed-off-by: Peng Fan <Peng.Fan@freescale.com>
Cc: Joe Hershberger <joe.hershberger@ni.com>
Cc: Simon Glass <sjg@chromium.org>
Cc: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
2015-12-05 18:22:24 -05:00
Peng Fan
678e9316d4 common: mmc: unsigned char compared against 0
"enable" is unsigned char type and its value will not be
negative, so discard "enable < 0".

Signed-off-by: Peng Fan <Peng.Fan@freescale.com>
Cc: Diego Santa Cruz <Diego.SantaCruz@spinetix.com>
Cc: Pantelis Antoniou <pantelis.antoniou@konsulko.com>
Cc: Andrew Gabbasov <andrew_gabbasov@mentor.com>
Cc: Simon Glass <sjg@chromium.org>
Cc: Stefano Babic <sbabic@denx.de>
Cc: Tom Rini <trini@konsulko.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2015-12-05 18:22:24 -05:00
Peng Fan
d39449b110 common: miiphyutil: no need to check name of mii_dev
The entry name of mii_dev is an array not pointer, so
no need to check.

Signed-off-by: Peng Fan <Peng.Fan@freescale.com>
Cc: Joe Hershberger <joe.hershberger@ni.com>
Cc: Simon Glass <sjg@chromium.org>
Cc: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2015-12-05 18:22:15 -05:00
Peng Fan
2ea47be02f common: image-fdt: correct fdt_blob for IMAGE_FORMAT_LEGACY
If condition of "(load == image_start || load == image_data)" is true,
should use "fdt_addr = load;", but not "fdt_blob = (char *)image_data;",
or fdt_blob will be overridden by "fdt_blob = map_sysmem(fdt_addr, 0);"
at the end of the switch case.

Signed-off-by: Peng Fan <Peng.Fan@freescale.com>
Cc: Simon Glass <sjg@chromium.org>
Cc: Joe Hershberger <joe.hershberger@ni.com>
Cc: Max Krummenacher <max.krummenacher@toradex.com>
Cc: Marek Vasut <marex@denx.de>
Cc: Suriyan Ramasami <suriyan.r@gmail.com>
Cc: Paul Kocialkowski <contact@paulk.fr>
Cc: Tom Rini <trini@konsulko.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2015-12-05 18:22:15 -05:00
Peng Fan
aa72252963 common: cli_hush: avoid dead code
Condition "(value == NULL && ++value == NULL)" actully will
always return false.

Instead, use condition "(value == NULL || *(value + 1) == 0)" to detect
such expression "c=". To "c=", *(value + 1) is 0, so directly return -1,
but not continue.

Signed-off-by: Peng Fan <Peng.Fan@freescale.com>
Cc: Rabin Vincent <rabin@rab.in>
Cc: Simon Glass <sjg@chromium.org>
Cc: Tom Rini <trini@konsulko.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2015-12-05 18:22:14 -05:00
Tom Rini
9eed48c8be Merge branch 'master' of http://git.denx.de/u-boot-sparc 2015-12-04 17:50:34 -05:00
Francois Retief
1e85ccec53 sparc: Update PROM initialization code for generic board
Fixed the prom_relocate() function in start.S file by reserving memory in
the board_init_f sequence and saving the offset to the __prom_start_reloc
variable. This value is used as the destination when relocating the PROM.

Add the prom_init() function to the end of the board_init_r sequence.

Signed-off-by: Francois Retief <fgretief@spaceteq.co.za>
2015-12-03 13:15:49 +02:00
Francois Retief
c97088c3cf sparc: Update cpu_init.c to use generic timer infrastructure
Introduce the CONFIG_SYS_TIMER_* macros in include/asm/config.h to make use
of the generic timer infrastructure in lib/time.c.

Created a timer_init() function to initialize the timer hardware and update
the #ifdef in board_init_f to allow this function to be called during the
start-up sequence.

Signed-off-by: Francois Retief <fgretief@spaceteq.co.za>
2015-12-03 13:15:49 +02:00
Francois Retief
e17c5200c7 sparc: Initial ground work for generic board initialization
Initial ground work in preperation for generic board initialization
code for the SPARC architecture.

Signed-off-by: Francois Retief <fgretief@spaceteq.co.za>
2015-12-03 13:15:48 +02:00
Anatolij Gustschin
f5bcfe151e Revert "LCD: Add an option to skip registration as an stdio output"
This reverts commit 05bfe13210.

As discussed on the list, we already have the needed functionality by
defining CONFIG_SYS_CONSOLE_IS_IN_ENV, CONFIG_SYS_CONSOLE_OVERWRITE_ROUTINE
and adding custom overwrite_console() in the board code.

Signed-off-by: Anatolij Gustschin <agust@denx.de>
2015-12-02 15:46:58 +01:00
Simon Glass
cab24b3407 dm: pci: Convert 'pci' command to driver model
Adjust this command to use the correct PCI functions, instead of the
compatibility layer.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
2015-12-01 06:26:38 -07:00
Simon Glass
c4f32bb248 pci: Move PCI header output code into its own function
We want to share this code with the driver model version, so put it in a
separate function.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2015-12-01 06:26:37 -07:00
Simon Glass
32ec5b344b pci: Use a separate 'dev' variable for the PCI device
In the 'pci' command, add a separate variable to hold the PCI device. When
this code is converted to driver model, this variable will be used to hold a
struct udevice instead.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2015-12-01 06:26:37 -07:00
Simon Glass
72ef5b608c pci: Use common functions to read/write config
Currently we use switch() and access PCI configuration via several
functions, one for each data size. Adjust the code to use generic functions,
where the data size is a parameter.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
2015-12-01 06:26:37 -07:00
Simon Glass
c2be070072 pci: Tidy up function comments in cmd_pci.c
The function comments use an old style and some are incorrect. Update them.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2015-12-01 06:26:37 -07:00
Simon Glass
49f835fd41 dm: pci: Reorder functions in cmd_pci.c
Before converting this to driver model, reorder the code to avoid forward
function declarations.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2015-12-01 06:26:37 -07:00
Simon Glass
07a588704c pci: Refactor the pciinfo() function
This function uses macros to output data. It seems better to use a table of
registers rather than macro-based code generation. It also reduces the
code/data size by 2KB on ARM.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
2015-12-01 06:26:37 -07:00
Simon Glass
ca7de76d8c pci: Use a separate variable for the bus number
At present in do_pci(), bdf can either mean a bus number or a PCI bus number.
Use separate variables instead to reduce confusion.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2015-12-01 06:26:37 -07:00
Simon Glass
bfa4191e03 pci: Use a common return in command processing
Adjust the commands to return from the same place.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2015-12-01 06:26:36 -07:00
Simon Glass
871bc92374 dm: pci: Avoid a driver model build error with CONFIG_CMD_PCI_ENUM
This is not supported with driver model, so print a message instead of
generating a build error. Rescanning PCI is not yet implemented.

This function will be implemented later once some additional PCI driver
model improvements are merged. It was confirmed on the mailing list
that no one on the tegra side will miss this feature, so it is disabled
for tegra.

Signed-off-by: Simon Glass <sjg@chromium.org>
Tested-by: Stephen Warren <swarren@nvidia.com>
2015-12-01 06:26:36 -07:00
Simon Glass
881c124ab8 dm: timer: Avoid using timer before it is ready
At present bootstage will try to read the timer very early after relocation.
When driver model is used to provide the timer, we cannot read it until
driver model is ready. Correct this by adding a separate stage for the
post-relocation bootstage init.

This fixes booting on chromebook_link.

Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Thomas Chou <thomas@wytron.com.tw>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Mugunthan V N <mugunthanvnm@ti.com>
2015-12-01 06:26:12 -07:00
Tom Rini
c1924d85af Merge branch 'master' of git://git.denx.de/u-boot-video 2015-11-30 07:10:18 -05:00
Patrick Delaunay
cfdaf4caa2 part:efi: add bootable parameter in gpt command
The optional parameter bootable is added in gpt command to set the
partition attribute flag "Legacy BIOS bootable"

This flag is used in extlinux and so in with distro to select
the boot partition where is located the configuration file
(please check out doc/README.distro for details).

With this parameter, U-Boot can be used to create the boot partition
needed for device using distro.

example of use:

setenv partitions "name=u-boot,size=60MiB;name=boot,size=60Mib,bootable;\
                   name=rootfs,size=0"

> gpt write mmc 0 $partitions

> part list mmc 0

Partition Map for MMC device 0  --   Partition Type: EFI

Part	Start LBA	End LBA		Name
	Attributes
	Type GUID
	Partition GUID
  1	0x00000022	0x0001e021	"u-boot"
	attrs:	0x0000000000000000
	type:	ebd0a0a2-b9e5-4433-87c0-68b6b72699c7
	guid:	cceb0b18-39cb-d547-9db7-03b405fa77d4
  2	0x0001e022	0x0003c021	"boot"
	attrs:	0x0000000000000004
	type:	ebd0a0a2-b9e5-4433-87c0-68b6b72699c7
	guid:	d4981a2b-0478-544e-9607-7fd3c651068d
  3	0x0003c022	0x003a9fde	"rootfs"
	attrs:	0x0000000000000000
	type:	ebd0a0a2-b9e5-4433-87c0-68b6b72699c7
	guid:	6d6c9a36-e919-264d-a9ee-bd00379686c7

> part list mmc 0 -bootable devplist

> printenv devplist

devplist=2

Then the distro scripts will search extlinux in partition 2
and not in the first partition.

Signed-off-by: Patrick Delaunay <patrick.delaunay73@gmail.com>
2015-11-23 11:01:52 -05:00
Lukasz Majewski
bbb9ffac60 gpt: command: Extend gpt command to support GPT table verification
This commit adds support for "gpt verify" command, which verifies
correctness of on-board stored GPT partition table.
As the optional parameter one can provide '$partitons' environment variable
to check if partition data (size, offset, name) is correct.

This command should be regarded as complementary one to "gpt restore".

Signed-off-by: Lukasz Majewski <l.majewski@majess.pl>
Reviewed-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Przemyslaw Marczak <p.marczak@samsung.com>
2015-11-23 11:01:51 -05:00
Lukasz Majewski
74f889b039 gpt: doc: Update gpt command's help description
Signed-off-by: Lukasz Majewski <l.majewski@majess.pl>
Reviewed-by: Tom Rini <trini@konsulko.com>
2015-11-23 11:01:46 -05:00
Lukasz Majewski
5af9dd3739 gpt: command: Remove duplicated check for empty partition description
Exactly the same check is performed in set_gpt_info() function executed
just after this check.

Signed-off-by: Lukasz Majewski <l.majewski@majess.pl>
Reviewed-by: Tom Rini <trini@konsulko.com>
2015-11-23 10:56:08 -05:00
Stefan Roese
7d9cde1031 lib/tiny-printf.c: Add tiny printf function for space limited environments
This patch adds a small printf() version that supports all basic formats.
Its intented to be used in U-Boot SPL versions on platforms with very
limited internal RAM sizes.

To enable it, just define CONFIG_USE_TINY_PRINTF in your defconfig. This
will result in the SPL using this tiny function and the main U-Boot
still using the full-blown printf() function.

This code was copied from:
http://www.sparetimelabs.com/printfrevisited
With mostly only coding style related changes so that its checkpatch
clean.

The size reduction is about 2.5KiB. Here a comparison for the db-mv784mp-gp
(Marvell AXP) SPL:

Without this patch:
  58963   18536    1928   79427   13643 ./spl/u-boot-spl

With this patch:
  56542   18536    1956   77034   12cea ./spl/u-boot-spl

Note:
To make it possible to compile tiny-printf.c instead of vsprintf.c when
CONFIG_USE_TINY_PRINTF is defined, the functions printf() and vprintf() are
moved from common/console.c into vsprintf.c in this patch.

Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Simon Glass <sjg@chromium.org>
Cc: Hans de Goede <hdegoede@redhat.com>
Cc: Tom Rini <trini@konsulko.com>
Cc: Albert Aribaud <albert.u.boot@aribaud.net>
2015-11-23 10:56:07 -05:00