Commit graph

856 commits

Author SHA1 Message Date
Tom Rini
91092132ba global: Move remaining CONFIG_SYS_NS16550_* to CFG_SYS_NS16550_*
The rest of the unmigrated CONFIG symbols in the CONFIG_SYS_NS16550
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
Tom Rini
6cc04547cb global: Migrate CONFIG_SYS_FSL* symbols to the CFG_SYS namespace
Migrate all of COFIG_SYS_FSL* to the CFG_SYS namespace.

Signed-off-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2022-11-10 10:08:55 -05:00
Tom Rini
5155207ae1 global: Migrate CONFIG_SYS_MPC8* symbols to the CFG_SYS namespace
Migrate all of COFIG_SYS_MPC* to the CFG_SYS namespace.

Signed-off-by: Tom Rini <trini@konsulko.com>
2022-11-10 10:08:55 -05:00
Tom Rini
b85d75951f powerpc: Migrate SYS_L3_SIZE to Kconfig
Introduce three options, one for each observed L3 cache size, and have
the size select'd as needed.

Signed-off-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2022-11-10 09:45:54 -05:00
Tom Rini
22a2283f2d powerpc: Migrate SYS_L2_SIZE to Kconfig
Introduce two options, one for each observed L2 cache size, and have the
size select'd as needed.

Signed-off-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2022-11-10 09:45:54 -05:00
Bin Meng
ea253ad7b5 treewide: Remove the unnecessary space before semicolon
%s/return ;/return;

Signed-off-by: Bin Meng <bmeng@tinylab.org>
2022-11-02 13:58:17 -04:00
Simon Glass
984639039f Rename CONFIG_SYS_TEXT_BASE to CONFIG_TEXT_BASE
The current name is inconsistent with SPL which uses CONFIG_SPL_TEXT_BASE
and this makes it imposible to use CONFIG_VAL().

Rename it to resolve this problem.

Signed-off-by: Simon Glass <sjg@chromium.org>
2022-10-31 11:01:31 -04:00
Pali Rohár
6f915a5d24 powerpc/mpc85xx: Fix re-align of unmapped DDR memory message for non-SPL builds
During init_dram() is called also setup_ddr_tlbs_phys() function which may
print message about unmapped DDR memory. So in this case print also
re-aligning filler after unmapped DDR memory message.

Signed-off-by: Pali Rohár <pali@kernel.org>
2022-09-23 15:13:18 -04:00
Pali Rohár
eec715e30f powerpc/mpc85xx: Explain TLB unmapped memory message
Currently U-Boot SPL prints just generic message "2 GiB left unmapped".
Change it to more detailed "2 GiB of DDR memory left unmapped in U-Boot".
This is just U-Boot configuration and operating system may map more (or
also less) memory.

Signed-off-by: Pali Rohár <pali@kernel.org>
2022-09-23 15:13:18 -04:00
Marek Behún
a0759684e0 powerpc: mpc85xx: Fix incorrect application of patch
I messed up application of patch 5a428e7510 ("mmc: fsl_esdhc_spl: Add
support for builds without CONFIG_SYS_MMC_U_BOOT_OFFS"). I took it from
a work-in-progress branch where I changed usage of
  CONFIG_SDCARD to CONFIG_SD_BOOT
and refactored
  SYS_MPC85XX_NO_RESETVEC
mess.

But these changes aren't in master yet. Fix the wrong usage of these
macros.

Fixes: 5a428e7510 ("mmc: fsl_esdhc_spl: Add support for builds without
CONFIG_SYS_MMC_U_BOOT_OFFS")
Signed-off-by: Marek Behún <kabel@kernel.org>
Reviewed-by: Pali Rohár <pali@kernel.org>
2022-09-19 08:30:58 -04:00
Pali Rohár
5a428e7510
mmc: fsl_esdhc_spl: Add support for builds without CONFIG_SYS_MMC_U_BOOT_OFFS
When fixed offset via CONFIG_SYS_MMC_U_BOOT_OFFS is not specified then
expects that U-Boot proper is placed immediately after SPL without any
additional padding.

This allows to generate smaller SPL+U-Boot final binary as it is not
required to specify fixed offset to U-Boot proper at SPL compile time.

In this case offset to U-Boot proper is calculated at SPL compile time in
linker script.

Signed-off-by: Pali Rohár <pali@kernel.org>
Reviewed-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Marek Behún <kabel@kernel.org>
2022-09-16 18:46:14 +02:00
Pali Rohár
7696b80ec5
powerpc: mpc85xx: Fix loading U-Boot proper from SD card in SPL
Change 8-byte alignment of SPL binary to just 4-byte alignment as objcopy
trims trailing zero bytes when converting ELF file to RAW binary.

This is same fix for SPL linker script as was done fix for U-Boot linker
script in commit e8c0e0064c ("powerpc: mpc85xx: Fix CONFIG_OF_SEPARATE
support").

It is required for the patch "mmc: fsl_esdhc_spl: Add support for builds
without CONFIG_SYS_MMC_U_BOOT_OFFS" which triggered this issue in SPL.

Signed-off-by: Pali Rohár <pali@kernel.org>
Signed-off-by: Marek Behún <kabel@kernel.org>
2022-09-16 17:39:45 +02:00
Marek Behún
1e1d12adbc
powerpc: mpc85xx: Fix check for CONFIG_SDCARD
Commit d433c74eec ("Convert CONFIG_SDCARD et al to Kconfig") converted
SYS_EXTRA_OPTIONS=SDCARD or SPIFLASH to config options CONFIG_SDCARD and
CONFIG_SPIFLASH, but left one occurance unchanged.

Fix this.

Fixes: d433c74eec ("Convert CONFIG_SDCARD et al to Kconfig")
Signed-off-by: Marek Behún <kabel@kernel.org>
Reviewed-by: Pali Rohár <pali@kernel.org>
2022-09-16 17:39:43 +02:00
Pali Rohár
44366be10a board: freescale: p1_p2_rdb_pc: Turn off watchdog before reset
P1/P2 RDB boards have external max6370 watchdog connected to CPLD and this
watchdog is not deactivated on board reset. So if it is active during board
reset, it can trigger another reset when CPU is booting U-Boot. To prevent
possible infinite reset loop caused by external watchdog, turn it off
before reset.

Do it via a new board_reset_prepare() callback which is called from
do_reset() function before any reset sequence.

Signed-off-by: Pali Rohár <pali@kernel.org>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
2022-09-06 14:08:35 +08:00
Pali Rohár
7e962cb132 board: freescale: p1_p2_rdb_pc: Avoid usage of CPLD's system reset register
CPLD's system reset register is buggy and requires workaround in U-Boot.
So use this kind of board reset only when there is no other reset option.

Introduce a new board_reset_last() callback which is last-stage
board-specific reset and implement CPLD's system reset in this new
board_reset_last() callback instead of board_reset() callback.

Fixes: 20fb58fc5a ("board: freescale: p1_p2_rdb_pc: Implement board_reset()")
Signed-off-by: Pali Rohár <pali@kernel.org>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
2022-09-06 14:08:34 +08:00
Tom Rini
0040ed7e0c ppc: Remove corenet_ds boards
These boards have been orphaned for some time and are behind on various
DM migrations. Remove them.

Cc: Priyanka Jain <priyanka.jain@nxp.com>
Cc: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Tom Rini <trini@konsulko.com>
2022-08-20 21:18:15 -04:00
Tom Rini
ff4e87c030 Convert CONFIG_SYS_FSL_QMAN_V3 et al to Kconfig
This converts the following to Kconfig:
   CONFIG_FSL_NGPIXIS
   CONFIG_SYS_FSL_QMAN_V3
   CONFIG_SYS_FSL_RAID_ENGINE
   CONFIG_SYS_FSL_RMU
   CONFIG_SYS_FSL_SINGLE_SOURCE_CLK
   CONFIG_SYS_FSL_SRIO_LIODN
   CONFIG_SYS_FSL_TBCLK_DIV
   CONFIG_SYS_FSL_USB1_PHY_ENABLE
   CONFIG_SYS_FSL_USB2_PHY_ENABLE
   CONFIG_SYS_FSL_USB_DUAL_PHY_ENABLE
   CONFIG_SYS_FSL_USB_INTERNAL_UTMI_PHY

Signed-off-by: Tom Rini <trini@konsulko.com>
2022-08-12 16:10:49 -04:00
Tom Rini
4143a23794 Convert CONFIG_SYS_FSL_PCIE_COMPAT to Kconfig
This converts the following to Kconfig:
   CONFIG_SYS_FSL_PCIE_COMPAT

To do this, introduce a choice and option for each of the strings used
and set CONFIG_SYS_FSL_PCIE_COMPAT based on that.

Signed-off-by: Tom Rini <trini@konsulko.com>
2022-08-12 16:10:49 -04:00
Tom Rini
1de46d91dd Convert CONFIG_SYS_FSL_NUM_CC_PLLS to Kconfig
This converts the following to Kconfig:
   CONFIG_SYS_FSL_NUM_CC_PLLS

Signed-off-by: Tom Rini <trini@konsulko.com>
2022-08-12 16:10:49 -04:00
Simon Glass
4e4bf9449b common: Drop display_options.h from common header
Move this out of the common header and include it only where needed.

Signed-off-by: Simon Glass <sjg@chromium.org>
2022-08-10 13:46:55 -04:00
Tom Rini
7da6a9e7df Convert CONFIG_SYS_FSL_CORES_PER_CLUSTER to Kconfig
This converts the following to Kconfig:
   CONFIG_SYS_FSL_CORES_PER_CLUSTER

As part of this, correct the dependencies on SYS_FSL_THREADS_PER_CORE.

Signed-off-by: Tom Rini <trini@konsulko.com>
2022-08-04 16:18:48 -04:00
Tom Rini
6f6b9703d0 Convert CONFIG_FSL_CORENET to Kconfig
This converts the following to Kconfig:
   CONFIG_FSL_CORENET

Signed-off-by: Tom Rini <trini@konsulko.com>
2022-08-04 16:18:47 -04:00
Pali Rohár
786d9f1a82 powerpc: mpc85xx: Add support for generating QorIQ pre-PBL eSDHC boot sector
QorIQ U-Boot binary for SD card booting compiled during build process
(either u-boot.bin or u-boot-with-spl.bin) cannot be directly loaded by
QorIQ pre-PBL BootROM. Compiled U-Boot binary first needs to be processed
by Freescale boot_format tool as described in doc/README.mpc85xx-sd-spi-boot

BootROM requires that image on SD card must contain special boot sector.
Implement support for generating this special boot sector directly in
U-Boot start code. Boot sector needs to be at the beginning of the image,
so when compiling only proper U-Boot without SPL then it needs to be in
proper U-Boot. When compiling SPL with proper U-Boot then it needs to be
only in SPL.

Support can be enabled by a new config option FSL_PREPBL_ESDHC_BOOT_SECTOR.
Via other two additional options FSL_PREPBL_ESDHC_BOOT_SECTOR_START and
FSL_PREPBL_ESDHC_BOOT_SECTOR_DATA it is possible to tune how final U-Boot
image could be stored on the SD card.

Signed-off-by: Pali Rohár <pali@kernel.org>
2022-07-29 19:49:13 +08:00
Tom Rini
38d091ac1d Convert CONFIG_SYS_CACHE_STASHING to Kconfig
This converts the following to Kconfig:
   CONFIG_SYS_CACHE_STASHING

Signed-off-by: Tom Rini <trini@konsulko.com>
2022-07-08 17:57:33 -04:00
Tom Rini
f6c1f91761 Convert CONFIG_SYS_FSL_CPC et al to Kconfig
This converts the following to Kconfig:
   CONFIG_SYS_FSL_CPC
   CONFIG_SYS_CPC_REINIT_F

Signed-off-by: Tom Rini <trini@konsulko.com>
2022-07-07 14:01:09 -04:00
Tom Rini
5a4461867c Convert CONFIG_SYS_RAMBOOT to Kconfig
This converts the following to Kconfig:
   CONFIG_SYS_RAMBOOT

Signed-off-by: Tom Rini <trini@konsulko.com>
2022-07-07 14:01:08 -04:00
Tom Rini
3dab405b45 Convert CONFIG_SYS_BOOK3E_HV to Kconfig
This converts the following to Kconfig:
   CONFIG_SYS_BOOK3E_HV

Signed-off-by: Tom Rini <trini@konsulko.com>
2022-07-07 09:29:56 -04:00
Tom Rini
540b73a7be arch/Kconfig.nxp: Re-organize slightly
Make all of the CHAIN_OF_TRUST options be under a single menu and add a
comment for the rest, so the resulting config file reads more clearly.
Remove duplicate CHAIN_OF_TRUST options from
board/congatec/common/Kconfig.  Remove duplicate NXP_ESBC config
questions and move to arch/Kconfig.nxp.

Signed-off-by: Tom Rini <trini@konsulko.com>
2022-07-05 17:04:01 -04:00
Tom Rini
601483ffd5 Convert CONFIG_SYS_FSL_SFP_BE et al to Kconfig
This converts the following to Kconfig:
   CONFIG_KEY_REVOCATION
   CONFIG_SYS_FSL_SFP_BE
   CONFIG_SYS_FSL_SFP_LE
   CONFIG_SYS_FSL_SFP_VER_3_0
   CONFIG_SYS_FSL_SFP_VER_3_2
   CONFIG_SYS_FSL_SFP_VER_3_4
   CONFIG_SYS_FSL_SRK_LE

This partly means making sure to enable SYS_FSL_ERRATUM_A007186 only for
when CHAIN_OF_TRUST is enabled.

Signed-off-by: Tom Rini <trini@konsulko.com>
2022-07-05 17:04:00 -04:00
Tom Rini
1e7750f1bc Convert CONFIG_HETROGENOUS_CLUSTERS et al to Kconfig
This converts the following to Kconfig:
   CONFIG_HETROGENOUS_CLUSTERS
   CONFIG_SYS_MAPLE
   CONFIG_SYS_CPRI
   CONFIG_PPC_CLUSTER_START
   CONFIG_DSP_CLUSTER_START
   CONFIG_SYS_CPRI_CLK
   CONFIG_SYS_ULB_CLK
   CONFIG_SYS_ETVPE_CLK

Signed-off-by: Tom Rini <trini@konsulko.com>
2022-07-05 17:03:01 -04:00
Tom Rini
fbc3621fb5 Convert CONFIG_ENABLE_36BIT_PHYS to Kconfig
This converts the following to Kconfig:
   CONFIG_ENABLE_36BIT_PHYS

Signed-off-by: Tom Rini <trini@konsulko.com>
2022-07-05 17:03:01 -04:00
Pali Rohár
9167a1c28c powerpc: mpc85xx: Simplify jump to _start_cont in flash code
After more patches code for jumping to _start_cont symbol in flash memory
involved to code with useless mathematical operations. Currently it does:

  r3 := CONFIG_SYS_MONITOR_BASE + ABS(_start_cont) - CONFIG_SYS_MONITOR_BASE
  jump to r3

Which is equivalent of just:

  r3 := ABS(_start_cont)
  jump to r3

The purpose of that code is just to jump to _start_code symbol,
independently of program counter. So branch must be done to absolute
address. Trying to write:

  ba _start_cont

just cause linker error:

    LD      u-boot
  powerpc-linux-gnuspe-ld.bfd: arch/powerpc/cpu/mpc85xx/start.o: in function `switch_as':
  (.bootpg+0x4b8): relocation truncated to fit: R_PPC_ADDR24 against symbol `_start_cont' defined in .text section in arch/powerpc/cpu/mpc85xx/start.o
  make: *** [Makefile:1801: u-boot] Error 1

Probably by the fact that absolute address cannot be expressed by 24-bits.
So write the code via mtlr+blr pattern as it was before and load general
purpose register with absolute address of the symbol:

  lis     r3,_start_cont@h
  ori     r3,r3,_start_cont@l
  mtlr    r3
  blr

Seems that gcc and gnu ld linker support symbol@h and symbol@l syntax like
number@h and number@l without any problem. And disassembling of compiler
u-boot binary proved that lis+ori instructions are called with numbers
which represent halves of absolute address of _start_cont symbol.

Signed-off-by: Pali Rohár <pali@kernel.org>
2022-07-03 15:13:51 +08:00
Tom Rini
de47ff5363 Convert CONFIG_SYS_MPC85XX_NO_RESETVEC to Kconfig
This converts the following to Kconfig:
   CONFIG_SYS_MPC85XX_NO_RESETVEC

Signed-off-by: Tom Rini <trini@konsulko.com>
2022-06-28 17:11:48 -04:00
Pali Rohár
c0f4756216 powerpc: mpc85xx: Set TEXT_BASE addresses to real base values
Currently CONFIG_SPL_TEXT_BASE and CONFIG_SYS_TEXT_BASE addresses are
manually increased by 0x1000 due to .bootpg section. This section has size
of 0x1000 bytes and is manually put by linker script before .text section
(and therefore before base address) when CONFIG_SYS_MPC85XX_NO_RESETVEC is
set. Due to this fact lot of other config options are manually increased by
0x1000 value to make correct layout. Note that entry point is not on
CONFIG_SPL_TEXT_BASE (image+0x1000) but it is really on address
CONFIG_SPL_TEXT_BASE-0x1000 (means at the start of the image).

Cleanup handling of .bootpg section when CONFIG_SYS_MPC85XX_NO_RESETVEC is
set. Put .bootpg code directly into .text section and move text base
address to the start of .bootpg code. And finally remove +0x1000 value from
lot of config options. With this removal custom PHDRS is not used anymore,
so remove it too.

After this change entry point would be at CONFIG_SPL_TEXT_BASE and not at
address -0x1000 anymore.

Tested on P2020 board with SPL and proper U-Boot.

Signed-off-by: Pali Rohár <pali@kernel.org>
2022-06-28 09:40:02 -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
Pali Rohár
549bb6b237 powerpc: mpc85xx: Fix compilation with CONFIG_WDT
When CONFIG_WDT is enabled then non-DM watchdog code cannot be used due to
conflicting functions like watchdog_reset(). So disable compilation of
mpc85xx watchdog_reset() function when CONFIG_WDT is enabled.

Signed-off-by: Pali Rohár <pali@kernel.org>
2022-06-20 09:18:26 +08:00
Tom Rini
eaf6ea6a1d Migrate CUSTOM_SYS_INIT_SP_ADDR to Kconfig using system-constants.h
- Make all users of CUSTOM_SYS_INIT_SP_ADDR reference SYS_INIT_SP_ADDR
- Introduce HAS_CUSTOM_SYS_INIT_SP_ADDR to allow for setting the stack
  pointer directly, otherwise we use the common calculation.
- On some platforms that were using the standard calculation but did not
  set CONFIG_SYS_INIT_RAM_SIZE / CONFIG_SYS_INIT_RAM_ADDR, set them.
- On a small number of platforms that were not subtracting
  GENERATED_GBL_DATA_SIZE do so now via the standard calculation.
- CONFIG_SYS_INIT_SP_OFFSET is now widely unused, so remove it from most
  board config header files.

Signed-off-by: Tom Rini <trini@konsulko.com>
2022-06-06 12:09:19 -04:00
Tom Rini
4c97c8cd42 powerpc: Switch to using CONFIG_SYS_INIT_SP_OFFSET from CONFIG_SYS_GBL_DATA_OFFSET
In the places where PowerPC references CONFIG_SYS_GBL_DATA_OFFSET it
does so as (CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_GBL_DATA_OFFSET).  And
it defines CONFIG_SYS_GBL_DATA_OFFSET in the same manner that other
architectures define CONFIG_SYS_INIT_SP_OFFSET. Other architectures
define CONFIG_SYS_INIT_SP_ADDR as (CONFIG_SYS_INIT_RAM_ADDR +
CONFIG_SYS_INIT_SP_OFFSET) typically.  Rename things within PowerPC for
consistency with other architectures.

Signed-off-by: Tom Rini <trini@konsulko.com>
2022-06-06 12:09:12 -04:00
Tom Rini
931bad1c72 mpc85xx: Switch to setting the initial stack pointer more clearly
Currently, since we know that in the combination of
CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_GBL_DATA_OFFSET all of the "high"
bits are in CONFIG_SYS_INIT_RAM_ADDR and "low" bits are in
CONFIG_SYS_GBL_DATA_OFFSET we reference this separately in start.S, but
added together everywhere else.  For clarity consistency, reference the
combined value here instead.

Signed-off-by: Tom Rini <trini@konsulko.com>
2022-06-06 12:09:12 -04:00
Tom Rini
b35316fb67 Convert CONFIG_SPL_INIT_MINIMAL et al to Kconfig
This converts the following to Kconfig:
   CONFIG_SPL_INIT_MINIMAL
   CONFIG_SPL_FLUSH_IMAGE
   CONFIG_SPL_SKIP_RELOCATE

Signed-off-by: Tom Rini <trini@konsulko.com>
2022-06-06 12:09:00 -04:00
Ye Li
cda8f87349 caam: Fix crash in case caam_jr_probe failed
If probing caam_jr returns failure, the variable "dev" will not be
initialized, so we can't use dev->name for the error print.
Otherwise it will cause crash.

Signed-off-by: Ye Li <ye.li@nxp.com>
Reviewed-by: Gaurav Jain <gaurav.jain@nxp.com>
2022-05-20 12:36:47 +02:00
Pali Rohár
1245c6e258 powerpc: mpc85xx: Define linker sections in ascending order
It is too confusing if sections are defined in non-ascending order.

Also linker has to go backward and then again forward when generating final
binary.

To make future changes easier, define all linker sections in ascending
order.

Signed-off-by: Pali Rohár <pali@kernel.org>
Reviewed-by: Priyanka Jain <priyanka.jain@nxp.com>
2022-04-26 17:18:39 +05:30
Pali Rohár
1b780b654f powerpc: mpc85xx: Put bss after image when not including reset vector
Linker knows exact size of the image, so there is no need to use
CONFIG_SYS_MONITOR_LEN macro (which should be upper limit).

Remove usage of CONFIG_SYS_MONITOR_LEN macro to simplify setup.

Signed-off-by: Pali Rohár <pali@kernel.org>
Reviewed-by: Priyanka Jain <priyanka.jain@nxp.com>
2022-04-26 17:18:39 +05:30
Pali Rohár
c45f000f29 powerpc: mpc85xx: Remove useless SIZEOF_HEADERS and .interp from ld script
.interp section is not available in output ELF binary and SIZEOF_HEADERS is
needed at all.

There is no change in generated u-boot.bin binary.

Signed-off-by: Pali Rohár <pali@kernel.org>
Reviewed-by: Priyanka Jain <priyanka.jain@nxp.com>
2022-04-26 17:18:39 +05:30
Pali Rohár
ab37df9d22 powerpc: mpc85xx: Remove duplicate u-boot-nand.lds
Signed-off-by: Priyanka Jain <priyanka.jain@nxp.com>
2022-04-26 17:18:39 +05:30
Pali Rohár
0038f2362a powerpc: mpc85xx: Remove u-boot-nand_spl.lds
mpc85xx SPL NAND linker script u-boot-nand_spl.lds is not used since
Jun 2014 commit 0234446fd1 ("nand_spl: remove MPC8536DS support").

Remove it.

Signed-off-by: Pali Rohár <pali@kernel.org>
[Rebased]
Signed-off-by: Priyanka Jain <priyanka.jain@nxp.com>
2022-04-26 17:18:39 +05:30
Pali Rohár
e8c0e0064c powerpc: mpc85xx: Fix CONFIG_OF_SEPARATE support
Currently CONFIG_OF_SEPARATE is completely broken and U-Boot for some
mpc85xx board (e.g. P2020) has to be compiled with CONFIG_OF_EMBED.
Otherwise it crashes during early init.

When debug console is enabled and all debug logging options are turned on
then U-Boot on P2020 with CONFIG_OF_SEPARATE prints following error:

  No valid device tree binary found at 110dc300
  initcall sequence 110d3560 failed at call 1109535c (err=-1)
  ### ERROR ### Please RESET the board ###

Problem is with appended DTB. When CONFIG_SYS_MPC85XX_NO_RESETVEC is set
U-Boot binary image without DTB ends immediately after the .u_boot_list
section. At this position is defined _end symbol at which U-Boot expects
start of the appended DTB.

Problem is that after .u_boot_list section are in linker script defined
another sections with 256 byte long padding which are completely empty.
During conversion of U-Boot ELF binary to RAW binary u-boot-nodtb.bin,
objcopy removes trailing zero padding and therefore DTB is appended at
wrong position.

Changing alignment from 256 bytes to 4 bytes fixes this issue. And appended
DTB is finally at he correct position. With this fix U-Boot on P2020 with
CONFIG_OF_SEPARATE option starts working again.

Signed-off-by: Pali Rohár <pali@kernel.org>
Reviewed-by: Priyanka Jain <priyanka.jain@nxp.com>
2022-04-26 17:18:39 +05:30
Pali Rohár
efd9914ffa powerpc: mpc85xx: Show e500 core version
Distinguish between e500v1 and e500v2.

Signed-off-by: Pali Rohár <pali@kernel.org>
Reviewed-by: Priyanka Jain <priyanka.jain@nxp.com>
2022-04-26 17:18:39 +05:30
Pali Rohár
de14a5a95c powerpc: mpc85xx: Rename _start_e500 symbol to _start
The real entry point is _start_e500. There is no _start symbol at all. So
rename _start_e500 to _start for convension that _start symbol is used as
entry point.

Signed-off-by: Pali Rohár <pali@kernel.org>
Reviewed-by: Priyanka Jain <priyanka.jain@nxp.com>
2022-04-26 17:18:39 +05:30
Pali Rohár
2dcf776ebc powerpc: mpc85xx: Drop _start symbol
_start symbol contains only 32-bit data number 0x27051956 despite it is
marked as text section. This magic number is IH_MAGIC which is used for
marking uboot image header.

mpc85xx start.S code does not define valid uboot image header, so IH_MAGIC
number in _start symbol is useless there.

Moreover this _start symbol is not used at all. Entry point is at symbol
_start_e500.

So because this _start symbol is not used for anything, completely remove
it with IH_MAGIC number. After _start symbol was _start_cont symbol, so
replace all relative address calculations by _start_cont.

Signed-off-by: Pali Rohár <pali@kernel.org>
[Rebased]
Signed-off-by: Priyanka Jain <priyanka.jain@nxp.com>
2022-04-26 17:18:33 +05:30