1659 Commits

Author SHA1 Message Date
Tom Rini
93f84ee022 Merge branch 'next' 2026-04-06 12:16:57 -06:00
Tom Rini
d05ef0f258 sata: Rework the CMD_SATA and SATA symbols
Today we typically enable CMD_SATA in order to have the SATA
functionality itself enabled, despite there being a clean split between
the two symbols. This in turn leads to potential configuration problems.
Split things so that SATA continues to be separate and not CMD_SATA
instead depends, functionally, on AHCI being enabled.

To do all of this:
- Have X86 select AHCI directly rather than "default y" it later.
- Make CMD_SATA be a default y option, given the split of platforms that
  enabled SATA and did, or did not, enable CMD_SATA.
- Change "imply CMD_SATA" to "imply SATA"
- Correct TARGET_VEXPRESS64_JUNO because you cannot select SATA_SIL
  without PCI (and in turn, SATA is needed for SATA_SIL).
- Update a number of defconfigs to have no functional change.

Signed-off-by: Tom Rini <trini@konsulko.com>
2026-04-03 12:06:14 -06:00
J. Neuschäfer
74f5e3ef30 powerpc/mpc83xx: Move alignment padding into __u_boot_list section
u-boot-dtb.bin is built by concatenating u-boot-nodtb.bin and u-boot.dtb.
u-boot-nodtb.bin, in turn, is generated by objcopy'ing the contents of
u-boot (U-Boot in ELF format) into a raw file.

In order to find the bundled FDT (u-boot.dtb), the code in lib/fdtdec.c
uses the _end symbol. Platform-specific linker scripts ensure that _end is
8-byte aligned, which is required by libfdt.

For the PowerPC MPC83xx platform, the ALIGN(8) directive was outside a
section, with the unfortunate effect that the potentially generated padding
bytes would not be copied by objcopy. This resulted in a discrepancy
between the _end symbol on the one hand, and the size of u-boot-nodtb.bin
and thus the starting location of the actual FDT on the other side. Under
these conditions, the FDT could not be found and boot would fail early.

This commit fixes it by moving the ALIGN(8) into the __u_boot_list section,
which is non-empty and thus copied into u-boot-nodtb.bin.

Signed-off-by: J. Neuschäfer <j.ne@posteo.net>
Reviewed-by: Tom Rini <trini@konsulko.com>
2026-04-02 17:41:02 -06:00
Tom Rini
0da1866a8f core: Rework REGMAP symbols implementation
As exposed by "make randconfig", we have an issue with the dependencies
for REGMAP (and xPL variants). As this is a library function, it should
always be selected and not depended on by other functionality. This is
largely done correctly today, so just correct the few outliers.

Acked-by: Anshul Dalal <anshuld@ti.com>
Signed-off-by: Tom Rini <trini@konsulko.com>
2026-03-30 16:59:35 -06:00
Alice Guo
add12cb688 board: nxp: Rename board directory from board/freescale to board/nxp
This patch renames the board directory from board/freescale to
board/nxp because NXP now provides Board Support Packages (BSPs) and
tools for the former Freescale i.MX and other i.MX products.

All relevant references have been updated accordingly. This change does
not affect functionality.

Signed-off-by: Alice Guo <alice.guo@nxp.com>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
2026-01-28 14:26:50 +08:00
Tom Rini
87d3780ebc powerpc: Update linker scripts to ensure appended device tree is aligned
With commit 0535e46d55d7 ("scripts/dtc: Update to upstream version
v1.7.2-35-g52f07dcca47c") it is now a fatal error to U-Boot if our
device tree is not 8-byte aligned. In commit 85f586035d75 ("ARM: OMAP2+:
Pad SPL binary to 8-byte alignment before DTB") Beleswar Padhi explains
that we must have ALIGN(x) statements inside of a section to ensure that
padding is included and not simply that the linker address counter is
incremented. To that end, this patch:
- Aligns the final section before _end by 8-bytes by adding '. =
  ALIGN(8);' or changing an existing ALIGN(4) statement.
- Ensure that we do have alignment by adding an ASSERT so that when not
  aligned we fail to link (and explain why).

Signed-off-by: Tom Rini <trini@konsulko.com>
2026-01-20 12:07:20 -06:00
Sughosh Ganu
9d37a3d6e8 lmb: replace lmb_reserve() and lmb_alloc_addr() API's
There currently are multiple allocation API's in the LMB module. There
are a couple of API's for allocating memory(lmb_alloc() and
lmb_alloc_base()), and then there are two for requesting a reservation
for a particular memory region (lmb_reserve() and
lmb_alloc_addr()). Introduce a single API lmb_alloc_mem() which will
cater to all types of allocation requests and replace lmb_reserve()
and lmb_alloc_addr() with the new API.

Moreover, the lmb_reserve() API is pretty similar to the
lmb_alloc_addr() API, with the one difference being that the
lmb_reserve() API allows for reserving any address passed to it --
the address need not be part of the LMB memory map. The
lmb_alloc_addr() does check that the address being requested is
actually part of the LMB memory map.

There is no need to support reserving memory regions which are outside
the LMB memory map. Remove the lmb_reserve() API functionality and use
the functionality provided by lmb_alloc_addr() instead. The
lmb_alloc_addr() will check if the requested address is part of the
LMB memory map and return an error if not.

Signed-off-by: Sughosh Ganu <sughosh.ganu@linaro.org>
Acked-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
2025-06-25 09:50:37 -06:00
Tom Rini
2cf46de9b6 include/mmc.h: Audit include list
This file does not need <linux/sizes.h> nor <linux/compiler.h> so remove
them. This exposes however that a number of other files had been relying
on this implicit include for <linux/sizes.h> so add that where needed.

Signed-off-by: Tom Rini <trini@konsulko.com>
2025-06-02 17:26:16 -06:00
Tom Rini
ad09ccf7fe Merge patch series "Misc. PowerPC MPC83xx fixes/cleanups"
J. Neuschäfer <j.ne@posteo.net> says:

This patchset contains a few small fixes/cleanups for the MPC83xx
platform.

Link: https://lore.kernel.org/r/20241220-mpc83xx-misc-v2-0-ff4c17ee5fa4@posteo.net
2024-12-30 15:55:33 -06:00
J. Neuschäfer
ba26b1d0fb powerpc: mpc83xx: Use defined constant for SPCR[TBEN]
To increase readability, use the defined constant instead of specifying
SPCR[TBEN] as a number.

Reviewed-by: Sinan Akman <sinan@writeme.com>
Signed-off-by: J. Neuschäfer <j.ne@posteo.net>
2024-12-30 15:55:27 -06:00
J. Neuschäfer
b3e8c67a91 powerpc: mpc83xx: Allow including initreg.h into multiple files
Globals defined in headers can result in multiple-definition errors
while linking, if they are visible beyond the current translation unit.

This hasn't been a problem for initreg.h so far, but would become a
problem in the next patch, where I use a constant from initreg.h in a
second C file.

Reviewed-by: Sinan Akman <sinan@writeme.com>
Signed-off-by: J. Neuschäfer <j.ne@posteo.net>
2024-12-30 15:55:27 -06:00
Tom Rini
c379590ab7 Merge patch series "powerpc: Fix and enforce distinction between immediates and registers"
J. Neuschäfer <j.ne@posteo.net> says:

This patchset changes the definition r0 etc. to %r0, so that the
assembler can check that registers are only used where expected, and
fixes the fallout.

Link: https://lore.kernel.org/r/20241212-gpr-checks-v1-0-8c084c5fc0b6@posteo.net
2024-12-30 15:55:11 -06:00
J. Neuschäfer
fd1c2938c0 powerpc: Fix 0 vs. r0 confusion in X/D-form instructions
Instructions such as dcbi are in the X-form; they have RA and RB fields
and the effective address (EA) is computed as (RA|0)+(RB). In words,
this means that if RA is zero, the left-hand side of the addition is
zero, otherwise the corresponding GPR is used. r0 can never be used on
the left-hand side of a X-form instruction.

For D-form instructions such as addis, the Power ISA illustrates this in
the instruction pseudo-code:

	if RA = 0 then RT <-        EXTS(SI || 0x0000)
	else           RT <- (RA) + EXIS(SI || 0x0000)

In all of these cases, RA=0 indicates the value zero, not register r0.

I verified with gazerbeam_defconfig (MPC83xx) and qemu-ppce500_defconfig
(MPC85xx) that this patch results in the same machine code.

Signed-off-by: J. Neuschäfer <j.ne@posteo.net>
2024-12-30 15:55:07 -06:00
Ilias Apalodimas
900a8951c3 lmb: Remove lmb_reserve_flags()
lmb_reserve() is just calling lmb_reserve_flags() with LMB_NONE.
There's not much we gain from this abstraction.
So let's remove the latter, add the flags argument to lmb_reserve()
and make the code a bit easier to follow.

Reviewed-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Sam Protsenko <semen.protsenko@linaro.org>
Tested-by: Sam Protsenko <semen.protsenko@linaro.org>
Signed-off-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
2024-12-30 13:21:55 -06:00
Simon Glass
bef9fdbed2 arch: Use CONFIG_XPL_BUILD instead of CONFIG_SPL_BUILD
Use the new symbol to refer to any 'SPL' build, including TPL and VPL

Signed-off-by: Simon Glass <sjg@chromium.org>
2024-10-11 11:44:47 -06:00
Sughosh Ganu
17f695dd1b ppc: lmb: move arch specific lmb reservations to arch_misc_init()
All the current function definitions of arch_lmb_reserve() are doing
the same thing -- reserve the U-Boot memory region. The powerpc(ppc)
architecture, in addition, is making some LMB reservations for the
bootm related image loading. Move these ppc specific reservations to
the arch_misc_init() function. This allows to move the U-Boot memory
region reservation to a different function, and remove
arch_lmb_reserve() in a subsequent commit.

Signed-off-by: Sughosh Ganu <sughosh.ganu@linaro.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
2024-09-03 14:08:50 -06:00
Sughosh Ganu
ed17a33fed lmb: make LMB memory map persistent and global
The current LMB API's for allocating and reserving memory use a
per-caller based memory view. Memory allocated by a caller can then be
overwritten by another caller. Make these allocations and reservations
persistent using the alloced list data structure.

Two alloced lists are declared -- one for the available(free) memory,
and one for the used memory. Once full, the list can then be extended
at runtime.

[sjg: Use a stack to store pointer of lmb struct when running lmb tests]

Signed-off-by: Sughosh Ganu <sughosh.ganu@linaro.org>
Signed-off-by: Simon Glass <sjg@chromium.org>
[sjg: Optimise the logic to add a region in lmb_add_region_flags()]
2024-09-03 14:08:50 -06:00
Simon Glass
5f32aac98e global_data: Move pci_clk to m68k and powerpc
Only m68k and powerpc use this field, so move it to the arch-specific
info, to reduce the size for other archs.

Signed-off-by: Simon Glass <sjg@chromium.org>
2024-08-26 14:05:37 -06:00
Marek Vasut
5f9a3003be ppc: Remove duplicate newlines
Drop all duplicate newlines. No functional change.

Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
2024-07-15 12:12:18 -06:00
Tom Rini
b182816c1f turris_1x: Normalize Kconfig usage
We don't set many options in the board Kconfig entry file but instead
use defconfigs, select in some cases on the target itself, or update the
"default" options of the main entries when needed. In this case we can
remove most of the board Kconfig entries and just add them to the
defconfig like other platforms.

Signed-off-by: Tom Rini <trini@konsulko.com>
2024-07-13 10:42:15 -06:00
Tom Rini
246a0ce1e1 Merge patch series "Add Turris 1.x board"
Marek Mojík <marek.mojik@nic.cz> says:

Hello all,

this is a continuation of previous work by Pali to add support for the
Turris 1.x board. As the patches were based on u-boot v2022.04, a
nontrivial rebasing was needed.

Some notes:
- Some options that are in SD defconfig are disabled in NOR defconfig
  because over the years u-boot grew and the old NOR defconfig will not
  fit into NOR memory.
- SD boot with RAM larger than 2GB will only allocate 2GB of RAM (We
  were not able to fix this yet)
2024-07-12 14:00:45 -06:00
Pali Rohár
f41582035c powerpc: Add support for CZ.NIC Turris 1.x routers
Add support for CZ.NIC Turris 1.x routers.

CZ.NIC Turris 1.0 (RTRS01) and 1.1 (RTRS02) are open source routers, they
have dual-core PowerPC Freescale P2020 CPU and are based on reference
Freescale P2020RDB-PC-A board design.

Hardware design is fully open source, all firmware and hardware design
files are available at Turris project website:

https://docs.turris.cz/hw/turris-1x/turris-1x/
https://project.turris.cz/en/hardware.html

The P2020 BootROM can load U-Boot either from NOR flash or from SD card.
We add the new defconfigs, turris_1x_nor_defconfig, which configures
U-Boot for building the NOR image, and turris_1x_sdcard_defconfig, which
configures U-Boot for building an image suitable for SD card.

The defconfig for NOR image is stripped-down a - many config options
enabled in SD defconfig are disabled for NOR defconfig. This is because
U-Boot grew non-trivially in the last two years and it would not fit
into the space allocated for U-Boot in the NOR memory. In the future we
may try to use LTO to reduce the size of the code and enable more
options.

The design of CZ.NIC Turris 1.x routers is based on Freescale P2020RDB-PC-A
board, so some code from boards/freescale/p1_p2_rdb_pc is used and linked
into Turris 1.x board code.

Turris 1.x code in this patch uses modern distroboot and can boot Linux
kernel from various locations, including NAND, SD card, USB flash disks,
NVMe disks or SATA disks (connected to extra SATA/SCSI PCIe controllers).
Via distroboot is implemented also rescue NOR boot for factory recovery,
triggered by reset button, like on other existing Turris routers.

SD boot with RAM larger than 2GB will only allocate 2GB of RAM (We were
not able to fix this yet)

[ Because various CONFIG_ macros were migrated to Kconfig since the last
  time this worked on upstream U-Boot (in 2022), a non-trivial rebasing
  was needed and some issues were solved. ]

Signed-off-by: Pali Rohár <pali@kernel.org>
Signed-off-by: Marek Mojík <marek.mojik@nic.cz>
Reviewed-by: Marek Behún <kabel@kernel.org>
2024-07-12 13:07:43 -06:00
Marek Mojík
748023c6ba powerpc: mpc85xx: use CONFIG_VAL() for SYS_MONITOR_BASE in start.s
Use CONFIG_VAL() for SYS_MONITOR_BASE in start.S so that correct value
is used for SPL.

Signed-off-by: Marek Mojík <marek.mojik@nic.cz>
Reviewed-by: Marek Behún <kabel@kernel.org>
2024-07-12 13:07:43 -06:00
Pali Rohár
89b009dfdc powerpc: mpc8xxx: Extend find_law() to find_law_by_addr_id()
The find_law() function searches for LAW just by physical address. This
is unsuitable for cases with overlapping LAWs. Extend it to
find_law_by_addr_id(), which searches for LAW by physical address and
target id.

Add a static inline definition of the original find_law() into fsl_law.h
header.

Signed-off-by: Pali Rohár <pali@kernel.org>
Signed-off-by: Marek Mojík <marek.mojik@nic.cz>
Reviewed-by: Marek Behún <kabel@kernel.org>
2024-07-12 13:07:43 -06:00
Rasmus Villemoes
85c476759a powerpc: mpc85xx: remove dead watchdog-related code
Nothing in-tree calls watchdog_reset() anymore (that stopped two years
ago with the removal of the WATCHDOG_RESET macro). So that function is
dead code.

That was the only caller of reset_85xx_watchdog(), so that
can obviously also be removed.

Finally, init_85xx_watchdog() is/was also not called from anywhere, so
that can go away as well, which nicely also removes a bit of
arch-specific code from the generic watchdog.h header.

Cc: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Rasmus Villemoes <rasmus.villemoes@prevas.dk>
Reviewed-by: Stefan Roese <sr@denx.de>
2024-06-16 12:14:18 +02:00
Rasmus Villemoes
e7dbc25c30 powerpc: mpc83xx: remove unused watchdog_reset() function
There is no longer any code in tree that calls a watchdog_reset()
function. The macro WATCHDOG_RESET, which used to emit a call to
watchdog_reset(), got removed two years ago.

Cc: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Rasmus Villemoes <rasmus.villemoes@prevas.dk>
Reviewed-by: Stefan Roese <sr@denx.de>
2024-06-16 12:14:14 +02:00
Tom Rini
03de305ec4 Restore patch series "arm: dts: am62-beagleplay: Fix Beagleplay Ethernet"
As part of bringing the master branch back in to next, we need to allow
for all of these changes to exist here.

Reported-by: Jonas Karlman <jonas@kwiboo.se>
Signed-off-by: Tom Rini <trini@konsulko.com>
2024-05-20 13:35:03 -06:00
Tom Rini
d678a59d2d Revert "Merge patch series "arm: dts: am62-beagleplay: Fix Beagleplay Ethernet""
When bringing in the series 'arm: dts: am62-beagleplay: Fix Beagleplay
Ethernet"' I failed to notice that b4 noticed it was based on next and
so took that as the base commit and merged that part of next to master.

This reverts commit c8ffd1356d42223cbb8c86280a083cc3c93e6426, reversing
changes made to 2ee6f3a5f7550de3599faef9704e166e5dcace35.

Reported-by: Jonas Karlman <jonas@kwiboo.se>
Signed-off-by: Tom Rini <trini@konsulko.com>
2024-05-19 08:16:36 -06:00
Tom Rini
6a7185887b global: Make <asm/global_data.h> include <asm/u-boot.h>
This follows the example of RISC-V where <asm/global_data.h> includes
<asm/u-boot.h> directly as "gd" includes a reference to bd_info already
and so the first must include the second anyhow. We then remove
<asm/u-boot.h> from all of the places which include references to "gd"
an so have <asm/global_data.h> already.

Signed-off-by: Tom Rini <trini@konsulko.com>
2024-05-06 15:07:48 -06:00
Tom Rini
702841b56e powerpc: Remove <common.h> and add needed includes
Remove <common.h> from all powerpc architecture files and when needed add
missing include files directly. This typically involves using
<asm/u-boot.h> instead due to the difficult nested structure of the
PowerPC includes themselves.

Signed-off-by: Tom Rini <trini@konsulko.com>
2024-05-06 15:05:04 -06:00
Christophe Leroy
dcf7af5fd9 powerpc: 8xx: Set SDMA configuration register correcly
SDMA configuration register needs to be set up only once and doesn't
belong to drivers. Also, the value to be used is different on mpc885.

So do the init in cpu_init_f() with 0x40 for mpc885 and 0x1 for others.

Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
2024-04-18 15:47:46 +02:00
Christophe Leroy
80ac19fd56 powerpc: mpc8xx: Remove usage of common.h
Remove inclusion of common.h and add relevant
includes when necessary.

Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
2023-11-16 18:53:09 -05:00
Tom Rini
dd1365c2e9 powerpc: mpc83xx: Rework includes slightly
In order to not rely on common.h providing a number of common includes,
cleanup what we include directly in order to be able to drop common.h
later.

Signed-off-by: Tom Rini <trini@konsulko.com>
2023-11-07 14:50:51 -05:00
Tom Rini
5faf66a2d1 fsl_qe: Drop common.h
In both include/fsl_qe.h and then also remove common.h from the files
which had included fsl_qe.h

Signed-off-by: Tom Rini <trini@konsulko.com>
2023-11-07 14:50:51 -05:00
Martin Fäcknitz
e9bf0ce6c1 mpc85xx: relocate code in non-SPL build
When building a non-SPL image, relocation is needed. This patch restores
the old behaviour before commit b35316fb67cb ("Convert
CONFIG_SPL_INIT_MINIMAL et al to Kconfig") was only defined if
CONFIG_SPL_BUILD was defined.

Fixes: b35316fb67cb ("Convert CONFIG_SPL_INIT_MINIMAL et al to Kconfig")
Signed-off-by: Martin Fäcknitz <faecknitz@hotsplots.de>
2023-10-28 09:17:55 -04:00
Simon Glass
3d6d507514 spl: Use SYS_MALLOC_F instead of SYS_MALLOC_F_LEN
Use the new SPL/TPL/VPL_SYS_MALLOC_F symbols to determine whether the
malloc pool exists.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Sean Anderson <sean.anderson@seco.com>
2023-10-06 14:38:12 -04:00
Tom Rini
a077ac13d0 Kconfigs: Correct default of "0" on hex type entries
It is not a parse error to have a default value of "0" for a "hex" type
entry, instead of "0x0".  However, "0" and "0x0" are not treated the
same even by the tools themselves. Correct this by changing the default
value from "0" to "0x0" for all hex type questions that had the
incorrect default. Fix one instance (in two configs) of a default of "0"
being used on a hex question to be "0x0". Remove the cases where a
defconfig had set a value of "0x0" to be used as the default had been
"0".

Signed-off-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2023-08-09 09:21:42 -04:00
Tom Rini
1917a1a8a8 Merge branch 'for-2023.07-2' of https://source.denx.de/u-boot/custodians/u-boot-mpc8xx
This pull request adds misc fixes for cssi boards and activates
CPM relocation in order to enable the use of SCC4 in
QMC (QUICC Multi-Channel) mode.
2023-05-07 09:44:27 -04:00
Christophe Leroy
e7930e93cc powerpc: mpc8xx: Add SMC relocation CPM microcode
In order to use QMC mode in the CPM, a SCC requires more space
in parameter RAM.

After SCC1 there is I2C parameter RAM and after SCC2 there is
SPI parameter RAM. MPC866 and MPC885 can already relocate I2C and.
SPI parameter RAM.

But in order to free space after SCC3 and SCC4, SMC1 and SMC2
need to be relocated. In order to do so, a CPM microcode patch
is required.

Binary data for that patch is copied from Linux kernel.

Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
2023-05-05 07:26:53 +02:00
Christophe Leroy
62c5fae511 powerpc: mpc885: Add CPM USB-SOF microcode for CPM15 ERRATA
MPC885 CPU has the following ERRATA:

	When the USB controller is configured in Host mode, and the
	SOF generation (SFTE=1 in USMOD register) is being used,
	there may be false CRC error indication in other SCCs.
	Although the data is received correctly, the CRC result
	will be corrupted.

Add capability to load the related microcode to fix it.
The microcode binary data is copied from Linux kernel.

Other microcode will be added in following patch so make it
a Kconfig choice.

Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
2023-05-05 07:26:53 +02:00
Christophe Leroy
bebb8dfabc powerpc: mpc8xx: Reorganise init RAM
Using SMC relocation microcode patch or USB-SOF microcode patch
will disable DPRAM memory from 0x2000 to 0x2400 and from 0x2f00
to 0x3000.

At the time being, init RAM is setup to use 0x2800-0x2e00, but
the stack pointer goes beyond 0x2800 and even beyond 0x2400.

For the time being we are not going to use any microcode patch
that uses memory about 0x3000, so reorganise setup to use:
- 0x2800 - 0x2e00 for init malloc and global data and CPM buffers
- 0x3000 - 0x3c00 for init stack

For more details about CPM dual port ram, see
commit b1d62424cb ("powerpc: mpc8xx: redistribute data in CPM dpram")

Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
2023-05-04 12:40:47 +02:00
Christophe Leroy
fdd243d81b powerpc: mpc8xx: CPM parameter RAM can be anywhere
With relocation, CPM parameter RAM can be anywhere in the
dual port RAM, so don't split dual port RAM.

Remove dparam and dparam16 members of struct comm_proc

PROFF_XXX become offsets from the start of dual port RAM,
then they are now consistant with the offsets in RPBASE
registers.

Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
2023-05-04 10:58:07 +02:00
Christophe Leroy
f1dc0daf7a mpc83xx: Don't allow W and G bits in IBATs
The "Programming Environments Manual for 32-Bit Implementations of the
PowerPC™ Architecture" says "W and G bits are not defined for IBAT
registers. Attempting to write to these bits causes boundedly-undefined
results"

The "e300 Power Architecture™ Core Family Reference Manual" says the
same: "Neither the W or G bits of the IBAT registers should be set.
Attempting to write to these bits causes boundedly-undefined results."

Remove the possibility to set those bytes.

Fixes: 30915ab95d9 ("mpc83xx: Migrate BATS config to Kconfig")
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Cc: Mario Six <mario.six@gdsys.cc>
2023-05-01 18:59:33 -04:00
Christophe Leroy
4d0c8db74d board: cssi: Add CPU board CMPCPRO
CSSI has another CPU board, similar to the CMPC885 board
that get plugged on the two base boards MCR3000_2G and MIAE.

That CPU board is called CMPCPRO because it has a MPC8321E CPU,
also known as Power QUICC II PRO.

Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
2023-04-28 17:52:23 +02:00
Christophe Leroy
b20db903c8 powerpc: mpc83xx: Don't activate MMU when not necessary
At startup, some RAM is needed (for instance for stack) before
DRAM is initialised.

One way to offer such RAM, used by mpc83xx, is to lock some entries
in the cache. To do that, MMU needs to be activated.

On mpc83xx having a QUICC Engine an alternative is to user some
part of from the Multi User RAM, like done on mpc8xx for instance.
For that, the MMU is not needed.

Activating the MMU is problematic because exception vectors are not
setup yet so in case of ISI or DSI that CPU will crash and reboot.

At the time being, MMU is activated regardless.

Only activate it when locking cache entries to provide initial RAM.

Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
2023-04-06 14:50:03 +02:00
Christophe Leroy
6792e85ee6 powerpc: mpc832x: Fix reset word
According to the reference manual, the Reset Configuration
Word Low Register bits 2-3 must be set to 0b10.

Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
2023-04-06 14:50:03 +02:00
Christophe Leroy
0fd79138dc watchdog: mpc8xxx: Add support for mpc83xx
Introduce a new compatible "fsl,pq2pro-wdt"
On mpc83xx, the prescaling factor is 0x10000.

Don't write the watchdog configuration register in
start.S as it can be written only once.

Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
2023-04-06 14:50:03 +02:00
Christophe Leroy
26e8ebcd7c watchdog: mpc8xxx: Make it generic
mpc8xx, mpc83xx and mpc86xx have similar watchdog with almost same
memory registers.

Refactor the driver to get the register addresses from the
device tree and use the compatible to know the prescale factor.

Calculate the watchdog setup value from the provided timeout.

Don't declare it anymore as an HW_WATCHDOG, u-boot will start
servicing the watchdog early enough.

On mpc8xx the watchdog configuration register is also used for
configuring the bus monitor. So add it as an option to the watchdog
when it is mpc8xx. When watchdog is not selected, leave the
configuration of the initial SYPCR from Kconfig.

Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
2023-04-06 14:47:47 +02:00
Christophe Leroy
9750a245cd powerpc: mpc8xx: Migrate to CONFIG_SYS_CLK_FREQ
8xx has CONFIG_8xx_GCLK_FREQ which is similar to
CONFIG_SYS_CLK_FREQ, and doesn't set CONFIG_SYS_CLK_FREQ.

Due to that, get_board_sys_clk() returns 0.

Remove CONFIG_8xx_GCLK_FREQ and use CONFIG_SYS_CLK_FREQ instead.

Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
2023-04-05 19:46:18 +02:00
Christophe Leroy
017375cb94 mpc83xx: Remove CONFIG_SYS_GPIO{1/2}_PRELIM and related
Last use of CONFIG_SYS_GPIO1_PRELIM was removed by
commit fae2ea5951 ("ppc: Remove MPC8349EMDS board and ARCH_MPC8349
support").

Last use of CONFIG_SYS_GPIO2_PRELIM was removed even before by
commit 6843862342 ("ppc: Remove caddy2 / vme8349 boards")

Those two items were removed from whitelist by
commit 8cca60a2cb ("Kconfig: Remove some symbols from the whitelist")

Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Fixes: fae2ea5951 ("ppc: Remove MPC8349EMDS board and ARCH_MPC8349 support")
2023-03-29 13:30:29 -04:00