This patch reworks the 440GX interrupt handling so that the common 4xx
code can be used. The 440GX is an exception to all other 4xx variants
by having the cascading interrupt vectors not on UIC0 but on a special
UIC named UICB0 (UIC Base 0). With this patch now, U-Boot references
the 440GX UICB0 when UIC0 is selected. And the common 4xx interrupt
handling is simpler without any 440GX special cases.
Also some additional cleanup to cpu/ppc4xx/interrupt.c is done.
Signed-off-by: Stefan Roese <sr@denx.de>
This 2nd patch now removes all UIC mask bit definition. They should be
generated from the vectors by using the UIC_MASK() macro from now on.
This way only the vectors need to get defined for new PPC's.
Also only the really used interrupt vectors are now defined. This makes
definitions for new PPC versions easier and less error prone.
Another part of this patch is that the 4xx emac driver got a little
cleanup, since now the usage of the interrupts is clearer.
Signed-off-by: Stefan Roese <sr@denx.de>
This patch is the first step to consolidate the UIC related defines in the
4xx headers. Move header from asm-ppc/ppc4xx-intvec.h to
asm-ppc/ppc4xx-uic.h as it will hold all UIC related defines in the next
steps.
Signed-off-by: Stefan Roese <sr@denx.de>
This patch removes all EBC related defines from the PPC4xx headers
ppc405.h and ppc440.h and introduces a new header
include/asm-ppc/ppc4xx-ebc.h
with all those defines.
Signed-off-by: Stefan Roese <sr@denx.de>
This patch completes the preprocessor mneomics for the IBM DDR2 SDRAM
controller registers (MODT and INITPLR) used by the
PowerPC405EX(r). The MMODE and MEMODE registers are unified with their
peer values used for the INITPLR MR and EMR registers,
respectively. Finally, a spelling typo is correct (MANUEL to MANUAL).
With these mnemonics in place, the CFG_SDRAM0_* magic numbers for
Kilauea are replaced by equivalent mnemonics to make it easier to
compare and contrast other 405EX(r)-based boards (e.g. during board
bring-up).
Finally, unified the SDRAM controller register dump routine such that
it can be used across all processor variants that utilize the IBM DDR2
SDRAM controller core. It produces output of the form:
PPC4xx IBM DDR2 Register Dump:
...
SDRAM_MB0CF[40] = 0x00006701
...
which is '<mnemonic>[<DCR #>] = <value>'. The DCR number is included
since it is not uncommon that the DCR values in header files get mixed
up and it helps to validate, at a glance, they match what is printed
in the user manual.
Tested on:
AMCC Kilauea/Haleakala:
- NFS Linux Boot: PASSED
- NAND Linux Boot: PASSED
Signed-off-by: Grant Erickson <gerickson@nuovations.com>
Signed-off-by: Stefan Roese <sr@denx.de>
Add additional DDR2 SDRAM memory controller DCR mneomnics, condition
revision ID DCR based on 405EX, and add field mnemonics for bus error
status and ECC error status registers.
Signed-off-by: Grant Erickson <gerickson@nuovations.com>
Signed-off-by: Stefan Roese <sr@denx.de>
While the PowerPC 405EX(r) shares in common the AMCC/IBM DDR2 SDRAM
controller core also used in the 440SP, 440SPe, 460EX, and 460GT, in
the 405EX(r), SDRAM_MCSTAT has a different DCR value.
Its present value on the 405EX(r) causes a read back of 0xFFFFFFFF
which causes SDRAM initialization to periodically fail since it can
prematurely indicate SDRAM ready status.
Signed-off-by: Grant Erickson <gerickson@nuovations.com>
Signed-off-by: Stefan Roese <sr@denx.de>
Newer PPC's like 440SPe, 460EX/GT can be equipped with more than 2GB of SDRAM.
To support such configurations, we "only" map the first 2GB via the TLB's. We
need some free virtual address space for the remaining peripherals like, SoC
devices, FLASH etc.
Note that ECC is currently not supported on configurations with more than 2GB
SDRAM. This is because we only map the first 2GB on such systems, and therefore
the ECC parity byte of the remaining area can't be written.
Signed-off-by: Stefan Roese <sr@denx.de>
The watchdog on 8610 board is enabled by setting sw[6]
to on. Once enabled, the watchdog can not be disabled
by software. So feed the dog in u-boot is necessary for
normal operation.
Signed-off-by: Jason Jin <Jason.jin@freescale.com>
to avoid this:
cpu.c:47:1: warning: "CPU_TYPE_ENTRY" redefined
In file included from cpu.c:33:
/home/kim/git/u-boot/include/asm/processor.h:982:1: warning: this is the location of the previous definition
Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
Building for 4xx doesn't work since commit 4dbdb768:
In file included from 4xx_pcie.c:28:
include/asm/processor.h:971: error: expected ')' before 'ver'
make[1]: *** [4xx_pcie.o] Error 1
This patch fixes the problem.
Signed-off-by: Anatolij Gustschin <agust@denx.de>
Acked-by: Stefan Roese <sr@denx.de>
Acked-by: Kumar Gala <galak@kernel.crashing.org>
Currently, both are defined as an unsigned long, but
should be phys_size_t. This should result in no real change,
since phys_size_t is currently an unsigned long for all the
default configs. Also add print_lnum to cmd_bdinfo to deal
with the potentially wider memsize.
Signed-off-by: Becky Bruce <becky.bruce@freescale.com>
LAWs have the concept of priority so its useful to be able to allocate
the lowest (highest number) priority. We will end up using this with the
new DDR code.
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Make it so we keep track of which LAWs have allocated and provide
a function (set_next_law) which can allocate a LAW for us if one is
free.
In the future we will move to doing more "dynamic" LAW allocation
since the majority of users dont really care about what LAW number
they are at.
Also, add CONFIG_MPC8540 or CONFIG_MPC8560 to those boards which needed them
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: Andy Fleming <afleming@freescale.com>
PPC: add accessor macros to clear and set bits in one shot
This patch adds macros from linux/include/asm-powerpc/io.h to clear and
set bits in one shot using the in_be32, out_be32, etc. accessor functions.
They are very handy to manipulate bits it I/O registers.
This patch is required for my forthcoming FSL NAND UPM driver re-write and
the support for the TQM8548 module.
Signed-off-by: Wolfgang Grandegger <wg@grandegger.com>
83xx/85xx/86xx: add more MxMR local bus definitions
This patch adds more macro definitions for the UPM Machine Mode Registers
They are copied from "include/mpc82xx.h" to simplify the merge of all 8xxx
common local bus definitions into include/asm-ppc/fsl_lbc.h. They are
required for my forthcoming FSL NAND UPM driver re-write and the support
for the TQM8548 module.
This patch is based on the following two patches from Anton Vorontsov:
http://www.mail-archive.com/u-boot-users@lists.sourceforge.net/msg06511.htmlhttp://www.mail-archive.com/u-boot-users@lists.sourceforge.net/msg06587.html
I leave coding style violation fixes, code beautification and name
corrections to somebody else ;-(.
Signed-off-by: Wolfgang Grandegger <wg@grandegger.com>
Merge mpc85xx.h's LBC defines to fsl_lbc.h. Also, adopt ACS names
from mpc85xx.h, so ACS_0b10 renamed to ACS_DIV4, ACS_0b11 to ACS_DIV2.
Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
This patch moves Freescale Localbus defines out of mpc83xx.h, so we could
use it on MPC85xx and MPC86xx processors.
Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
The current cpu identification code is used just to return the name
of the processor at boot. There are some other locations that the name
is useful (device tree setup). Expose the functionality to other bits
of code.
Also, drop the 'E' suffix and add it on by looking at the SVR version
when we print this out. This is mainly to allow the most flexible use
of the name. The device tree code tends to not care about the 'E' suffix.
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
This patch now adds a new header file (asm-ppc/ppc4xx-sdram.h) for all
ppc4xx related SDRAM/DDR/DDR2 controller defines.
Signed-off-by: Stefan Roese <sr@denx.de>
This patch (Part 1 of 2):
* Rolls up a suite of changes to enable correct primordial stack and
global data handling when the data cache is used for such a purpose
for PPC40x-variants (i.e. CFG_INIT_DCACHE_CS).
* Related to the first, unifies DDR2 SDRAM and ECC initialization by
eliminating redundant ECC initialization implementations and moving
redundant SDRAM initialization out of board code into shared 4xx
code.
* Enables MCSR visibility on the 405EX(r).
* Enables the use of the data cache for initial RAM on
both AMCC's Kilauea and Makalu and removes a redundant
CFG_POST_MEMORY flag from each board's CONFIG_POST value.
- Removed, per Stefan Roese's request, defunct memory.c file for
Makalu and rolled sdram_init from it into makalu.c.
With respect to the 4xx DDR initialization and ECC unification, there
is certainly more work that can and should be done (file renaming,
etc.). However, that can be handled at a later date on a second or
third pass. As it stands, this patch moves things forward in an
incremental yet positive way for those platforms that utilize this
code and the features associated with it.
Signed-off-by: Grant Erickson <gerickson@nuovations.com>
Signed-off-by: Stefan Roese <sr@denx.de>
* The cfi_flash.c memset fix actual allows the board to boot so there is
a bit more going on here than just resolving warnings associated with
uninitialized variables.
* include/asm/bitops.h:302: warning: '__swab32p' is static but used in
inline function 'ext2_find_next_zero_bit' which is not static
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
This function prints the values of all the BAT register
pairs - I needed this for debug earlier this week; adding it to
lib_ppc so others can use it (and add it to reginfo commands
if so desired).
Signed-off-by: Becky Bruce <becky.bruce@freescale.com>
Currently, this code only deals with BATs 0-3, which makes
it useless on systems that support BATs 4-7. Add the
support for these registers.
Signed-off-by: Becky Bruce <Becky.bruce@freescale.com>
This commit gets rid of a huge amount of silly white-space issues.
Especially, all sequences of SPACEs followed by TAB characters get
removed (unless they appear in print statements).
Also remove all embedded "vim:" and "vi:" statements which hide
indentation problems.
Signed-off-by: Wolfgang Denk <wd@denx.de>
This way we become able to utilize the full post_log_word for POST
activities (overwise, POST ECC, which has 0x8000 ID, could be
erroneously treated as started in post_output_backlog() even if there
was actually no POST ECC run (because of OCM POST failure, for
example).
Signed-off-by: Yuri Tikhonov <yur@emcraft.com>
Don't run futher tests in case of a test fails that is marked as
POST_STOP.
Signed-off-by: Ilya Yanok <yanok@emcraft.com>
Signed-off-by: Yuri Tikhonov <yur@emcraft.com>
map_physmem currently generates a warning when CONFIG_PHYS_64BIT is
enabled. This quiets the warning.
Signed-off-by: Becky Bruce <Becky.Bruce@freescale.com>
Rename init_addr and init_ext_addr to match the docs between
85xx and 86xx. Both now use 'init_addr' and 'init_ext_addr'.
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
The PCIe root-complex/endpoint setup as configured via the "pcie_mode"
environment variable will now get passed to the Linux kernel by setting
the device_type property of the PCIe device tree node. For normal root-
complex configuration it will keep its defaults value of "pci" and for
endpoint configuration it will get changed to "pci-endpoint".
Signed-off-by: Stefan Roese <sr@denx.de>
Limit the rate of h/w watch-dog triggering on the LWMON5 board by
the CONFIG_WD_MAX_RATE value.
Note that an earlier version of this patch which used microseconds
instead of ticks dis not work. The problem was that we used
usec2ticks() to convert microseconds into ticks. usec2ticks() uses
get_tbclk(), which in turn calls get_sys_info(). It turns out that
this function does a lot of prolonged operations (like divisions)
which take too much time so we do not trigger the watchdog in time,
and it resets the system.
Signed-off-by: Yuri Tikhonov <yur@emcraft.com>
Some 85xx chips use CCB as the base clock for the I2C. Some use CCB/2, and
some use CCB/3. There is no pattern that can be used to determine which
chips use which frequency, so the only way to determine is to look up the
actual SOC designation and use the right value for that SOC.
Update immap_85xx.h to include the GUTS PORDEVSR2 register.
Signed-off-by: Timur Tabi <timur@freescale.com>
Also add CONFIG_PHYS_64BIT on powerpc to deal with 32-bit ppc's
that have larger physical addresses like 44x, 85xx, and 86xx.
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
delete ddr_clk and use mem_clk instead. Rename other ddr_*_clk to
mem_*_clk for consistency's sake.
Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
Signed-off-by: James Yang <James.Yang@freescale.com>
Signed-off-by: Jon Loeliger <jdl@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
