Commit graph

17 commits

Author SHA1 Message Date
Tom Rini
2f41ade79e linker: Modify linker scripts to be more generic
Make use of "IMAGE_MAX_SIZE" and "IMAGE_TEXT_BASE" rather than
CONFIG_SPL_MAX_SIZE and CONFIG_SPL_TEXT_BASE.  This lets us re-use the
same script for both SPL and TPL.  Add logic to scripts/Makefile.spl to
pass in the right value when preprocessing the script.

Cc: Stefano Babic <sbabic@denx.de>
Cc: Fabio Estevam <fabio.estevam@nxp.com>
Cc: Jagan Teki <jagan@openedev.com>
Cc: Maxime Ripard <maxime.ripard@bootlin.com>
Cc: Andreas Bießmann <andreas@biessmann.org>
Cc: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Cc: Michal Simek <monstr@monstr.eu>
Cc: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
Cc: York Sun <york.sun@nxp.com>
Cc: Bin Meng <bmeng.cn@gmail.com>
Cc: Heiko Schocher <hs@denx.de>
Cc: Adam Ford <aford173@gmail.com>
Signed-off-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
Tested-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
Tested-by: Adam Ford <aford173@gmail.com> #da850evm & omap3_logic_somlv
Reviewed-by: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com>
2019-01-26 22:55:53 -05:00
Tom Rini
a6d6812a21 PowerPC: Stop re-using CONFIG_SPL_TEXT_BASE for TPL
Rather than checking for CONFIG_TPL_BUILD and then re-defining
CONFIG_SPL_TEXT_BASE make use of CONFIG_TPL_TEXT_BASE directly.

Cc: York Sun <york.sun@nxp.com>
Cc: Po Liu <po.liu@nxp.com>
Cc: Qiang Zhao <qiang.zhao@nxp.com>
Cc: Timur Tabi <timur@tabi.org>
Signed-off-by: Tom Rini <trini@konsulko.com>
2019-01-26 22:55:53 -05:00
Jagdish Gediya
4d3294b1d5 powerpc/dts: Define '_end' symbol in mpc85xx U-Boot lds files
'board_fdt_blob_setup' function sets up fdt blob at '&_end' so
define '_end' symbol in mpc85xx lds files.

Signed-off-by: Jagdish Gediya <jagdish.gediya@nxp.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: York Sun <york.sun@nxp.com>
2018-09-27 10:13:24 -07:00
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
Zhenhua Luo
522b021a8a mpc85xx/u-boot*.lds: remove _GLOBAL_OFFSET_TABLE_ definition
In binutils-2.25, the _GLOBAL_OFFSET_TABLE_ symbols defined by PROVIDE in
u-boot.lds overrides the linker built-in symbols
(https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;a=commitdiff;
h=b893397a4b1316610f49819344817715e4305de9),
so the linker is treating _GLOBAL_OFFSET_TABLE_ as a definition into the
.reloc section.

To align with the change of binutils-2.25, the _GLOBAL_OFFSET_TABLE_ symbol
should not be defined in sections, and the symbols in linker generated .got
section should be used(https://sourceware.org/ml/binutils/2008-09/
msg00122.html)

Fixed the following build errors with binutils-2.25:
| powerpc-poky-linux-gnuspe-ld.bfd: _GLOBAL_OFFSET_TABLE_ not defined in
linker created .got

Signed-off-by: Zhenhua Luo <zhenhua.luo@freescale.com>
Signed-off-by: Prabhakar Kushwaha <prabhakar@freescale.com>
2015-11-09 23:21:06 +00:00
Masahiro Yamada
6f2ed0e9fa cosmetic: delete misleading comment /* CONFIG_BOARDDIR */
CONFIG_BOARDDIR is not referenced in these linker scripts.
The comment /* CONFIG_BOARDDIR */ is misleading.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
2014-05-12 15:20:05 -04:00
Prabhakar Kushwaha
651fcf6019 powerpc:Add support of SPL non-relocation
Current SPL code base has BSS section placed after reset_vector. This means
they have to relocate to use the global variables. This put an implicit
requirement of having SPL size = Memory/2.

To avoid relocation:
	- Move bss_section within SPL range
	- Modify relocate_code()

Signed-off-by: Prabhakar Kushwaha <prabhakar@freescale.com>
Reviewed-by: York Sun <yorksun@freescale.com>
2014-04-22 17:58:50 -07:00
Prabhakar Kushwaha
49efe85b35 powerpc/mpc85xx: Avoid hardcoding in SPL linker script
SPL linker has fix location of bootpg and reset vector with respect to text base.
It is not necessary to have fixed locations.

Avoid such hardcoding.

Signed-off-by: Prabhakar Kushwaha <prabhakar@freescale.com>
Reviewed-by: York Sun <yorksun@freescale.com>
2014-04-22 17:58:50 -07:00
Po Liu
6609916efb powerpc:mpc85xx: Add ifc nand boot support for TPL/SPL
Using the TPL method for nand boot by sram was already
supported. Here add some code for mpc85xx ifc nand boot.

	- For ifc, elbc, esdhc, espi, all need the SPL without
	section .resetvec.
	- Use a clear function name for nand spl boot.
	- Add CONFIG_SPL_DRIVERS_MISC_SUPPORT to compile the fsl_ifc.c
	in spl/Makefile;

Signed-off-by: Po Liu <Po.Liu@freescale.com>
Acked-by: Scott Wood <scottwood@freescale.com>
Reviewed-by: York Sun <yorksun@freescale.com>
2014-01-21 13:42:01 -08:00
Ying Zhang
81b867aa44 SPL: P1022DS: switch to new multibus/multiadapter support
- Added section "u_boot_list" in arch/powerpc/cpu/mpc85xx/u-boot-spl.lds
- Use the function i2c_init_all instead of i2c_init

Signed-off-by: Ying Zhang <b40530@freescale.com>
2013-09-09 07:43:43 +02:00
Ying Zhang
bb0dc1084f powerpc: mpc85xx: Support booting from SD Card with SPL
The code from the internal on-chip ROM. It loads the final uboot image
into DDR, then jump to it to begin execution.

The SPL's size is sizeable, the maximum size must not exceed the size of L2
SRAM. It initializes the DDR through SPD code, and copys final uboot image
to DDR. So there are two stage uboot images:
	* spl_boot, 96KB size. The env variables are copied to L2 SRAM, so that
	ddr spd code can get the interleaving mode setting in env. It loads
	final uboot image from offset 96KB.
	* final uboot image, size is variable depends on the functions enabled.

Signed-off-by: Ying Zhang <b40530@freescale.com>
Acked-by: York Sun <yorksun@freescale.com>
2013-08-20 09:47:26 -07:00
Wolfgang Denk
1a4596601f Add GPL-2.0+ SPDX-License-Identifier to source files
Signed-off-by: Wolfgang Denk <wd@denx.de>
[trini: Fixup common/cmd_io.c]
Signed-off-by: Tom Rini <trini@ti.com>
2013-07-24 09:44:38 -04:00
Ying Zhang
67ad0d52df powerpc/mpc85xx: modify the functionality clear_bss and aligning the end address of the BSS
There will clear the BSS in the function clear_bss(), the reset address of
the BSS started from the __bss_start, and increased by four-byte increments,
finally stoped depending on the address is equal to the _bss_end. If the end
address __bss_end is not alignment to 4byte, it will be an infinite loop.

1. The reset action stoped depending on the reset address is greater
than or equal the end address of the BSS.
2. The end address of the BSS should be 4byte aligned. Because the reset unit
is 4 Bytes.

This patch is on top of the patch "powerpc/mpc85xx: support application
without resetvec segment in the linker script".

Signed-off-by: Ying Zhang <b40530@freescale.com>
Signed-off-by: Andy Fleming <afleming@freescale.com>
2013-06-20 17:08:50 -05:00
Ying Zhang
5df572f013 powerpc/mpc85xx: support application without resetvec segment in the linker script
For SD/SPI 2-stage bootloader, the On-Chip Rom code loads the SPL into L2 SRAM,
then jump to it to begin execution. After that, the SPL loads the final uboot
image into DDR, then jump to it to begin execution. The segment .resetvec in
the SPL and in final U-boot is useless.

So, add new symbols CONFIG_SYS_MPC85XX_NO_RESETVEC for this application.
If CONFIG_SYS_MPC85XX_NO_RESETVEC is set, the segment .resetvec is excluded
and the segment .bootpg is placed in the previous 4K of the segment .text.

Signed-off-by: Ying Zhang <b40530@freescale.com>
Signed-off-by: Andy Fleming <afleming@freescale.com>
2013-06-20 17:08:50 -05:00
Prabhakar Kushwaha
3a88179d03 powerpc/mpc85xx: new SPL support for IFC NAND
Linker script is not able find start.o binary. So add its absolute path in
u-boot-spl.lds. This change is similar to u-boot-nand.lds

common/Makefile: Avoid compiling unnecssary files

fsl_ifc_spl.c : It is is responsible for reading u-boot binary from
NAND flash and copying into DDR. It also transfer control from NAND SPL
to u-boot image present in DDR.

Signed-off-by: Prabhakar Kushwaha <prabhakar@freescale.com>
Signed-off-by: Andy Fleming <afleming@freescale.com>
2013-06-20 16:08:58 -05:00
Simon Glass
3929fb0a14 Replace __bss_end__ with __bss_end
Note this is a tree-wide change affecting multiple architectures.

At present we use __bss_start, but mostly __bss_end__. This seems
inconsistent and in a number of places __bss_end is used instead.

Change to use __bss_end for the BSS end symbol throughout U-Boot. This
makes it possible to use the asm-generic/sections.h file on all
archs.

Signed-off-by: Simon Glass <sjg@chromium.org>
2013-03-15 16:13:54 -04:00
Scott Wood
c97cd1ba48 spl/85xx: new SPL support
Update CONFIG_RAMBOOT and CONFIG_NAND_SPL references to accept CONFIG_SPL
and CONFIG_SPL_BUILD, respectively.  CONFIG_NAND_SPL can be removed once
the last mpc85xx nand_spl target is gone.

CONFIG_RAMBOOT will need to remain for other use cases, but it doesn't
seem right to overload it for meaning SPL as well as nand_spl does.  Even
if it's somewhat appropriate for the main u-boot, the SPL itself isn't
(necessarily) ramboot, and we don't have separate configs for SPL and
main u-boot.  It was also inconsistent, as other platforms such as
mpc83xx didn't use CONFIG_RAMBOOT in this way.

Signed-off-by: Scott Wood <scottwood@freescale.com>
Cc: Andy Fleming <afleming@freescale.com>
2012-11-26 15:41:25 -06:00