Currently MPC85xx and MPC86xx boards just calculate the localbus frequency
and print it out, but don't save it.
This changes where its calculated and stored to be more consistent with the
CPU, CCB, TB, and DDR frequencies and the MPC83xx localbus clock.
The localbus frequency is added to sysinfo and calculated when sysinfo is
set up, in cpu/mpc8[56]xx/speed.c, the same as the other frequencies are.
get_clocks() copies the frequency into the global data, as the other
frequencies are, into a new field that is only enabled for MPC85xx and
MPC86xx.
checkcpu() in cpu/mpc8[56]xx/cpu.c will print out the local bus frequency
from sysinfo, like the other frequencies, instead of calculating it on the
spot.
Signed-off-by: Trent Piepho <tpiepho@freescale.com>
Acked-by: Kumar Gala <galak@kernel.crashing.org>
Acked-by: Jon Loeliger <jdl@freescale.com>
The local bus clock divider should be doubled for both 8610 and 8641.
Signed-off-by: Trent Piepho <tpiepho@freescale.com>
Acked-by: Kumar Gala <galak@kernel.crashing.org>
Acked-by: Jon Loeliger <jdl@freescale.com>
On newer CPUs, 8536, 8572, and 8610, the CLKDIV field of LCRR is five bits
instead of four.
In order to avoid an ifdef, LCRR_CLKDIV is set to 0x1f on all systems. It
should be safe as the fifth bit was defined as reserved and set to 0.
Code that was using a hard coded 0x0f is changed to use LCRR_CLKDIV.
Signed-off-by: Trent Piepho <tpiepho@freescale.com>
Acked-by: Kumar Gala <galak@kernel.crashing.org>
Acked-by: Jon Loeliger <jdl@freescale.com>
Export the localbus frequency in the device tree, the same way the CPU, TB,
CCB, and various other frequencies are exported in their respective device
tree nodes.
Some localbus devices need this information to be programed correctly, so
it makes sense to export it along with the other frequencies.
Unfortunately, when someone wrote the localbus dts bindings, they didn't
bother to define what the "compatible" property should be. So it seems no
one was quite sure what to put in their dts files.
Based on current existing dts files in the kernel source, I've used
"fsl,pq3-localbus" and "fsl,elbc" for MPC85xx, which are used by almost all
of the 85xx devices, and are looked for by the Linux code. The eLBC is
apparently not entirely backward compatible with the pq3 LBC and so eLBC
equipped platforms like 8572 won't use pq3-localbus.
For MPC86xx, I've used "fsl,elbc" which is used by some of the 86xx systems
and is also looked for by the Linux code. On MPC8641, I've also used
"fsl,mpc8641-localbus" as it is also commonly used in dts files, some of
which don't use "fsl,elbc" or any other acceptable name to match on.
Signed-off-by: Trent Piepho <tpiepho@freescale.com>
Acked-by: Kumar Gala <galak@kernel.crashing.org>
Acked-by: Jon Loeliger <jdl@freescale.com>
This patch creates a memory map with all the devices
in 36-bit physical space, in addition to the 32-bit map.
The CCSR relocation is moved (again, sorry) to
allow for the physical address to be 36 bits - this
requires translation to be enabled. With 36-bit physical
addressing enabled, we are no longer running with VA=PA
translations. This means we have to distinguish between
the two in the config file. The existing region name is
used to indicate the virtual address, and a _PHYS variety
is created to represent the physical address.
Large physical addressing is not enabled by default.
Set CONFIG_PHYS_64BIT in the config file to turn this on.
Signed-off-by: Becky Bruce <becky.bruce@freescale.com>
The memory map on the 8641hpcn is modified to look more like
the 85xx boards; this is a step towards a more standardized
layout going forward. As part of this change, we now relocate
the flash.
The regions for some of the mappings were far larger than they
needed to be. I have reduced the mappings to match the
actual sizes supported by the hardware.
In addition I have removed the comments at the head
of the BAT blocks in the config file, rather than updating
them. These get horribly out of date, and it's a simple
matter to look at the defines to see what they are set to
since everything is right here in the same file.
Documentation has been changed to reflect the new map, as this
change is user visible, and affects the OS which runs post-uboot.
Signed-off-by: Becky Bruce <becky.bruce@freescale.com>
We define CONFIG_MONITOR_BASE_EARLY to define the initial location
of the bootpage in flash. Use this to create an early mapping
definition for the FLASH, and change the early_bats code to use this.
This change facilitates the relocation of the flash since the early
mappings are no longer tied to the final location of the flash.
Signed-off-by: Becky Bruce <becky.bruce@freescale.com>
Using a mtmsr/blr means that you have to be executing at the
same virtual address once you enable translation. This is
unnecessarily restrictive, and is not really how this is
usually done. Change it to use the more common mtspr SRR0/SRR1
and rfi method.
Signed-off-by: Becky Bruce <becky.bruce@freescale.com>
In order to later allow for a physical relocation of the
flash, setup_bats, which sets up the final BAT mapping
for the board, needs to happen *after* init_laws().
Otherwise, there will be no window programmed for the flash
at the new physical location at the point when we change
the mmu translation.
Signed-off-by: Becky Bruce <becky.bruce@freescale.com>
We put the bootpg for the secondary cpus into memory and use
BPTR to get to it. This is a step towards converting to the
ePAPR boot methodology. Also, the code is written to
deal properly with more than 4GB of RAM.
Signed-off-by: Becky Bruce <becky.bruce@freescale.com>
Currently, the CCSR gets relocated while translation is
enabled, meaning we need 2 BAT translations to get to both the
old location and the new location. Also, the DEFAULT
CCSR location has a dependency on the BAT that maps the
FLASH region. Moving the relocation removes this unnecessary
dependency. This makes it easier and more intutive to
modify the board's memory map.
Swap BATs 3 and 4 on 8610 so that all 86xx boards use the same
BAT for CCSR space.
Signed-off-by: Becky Bruce <becky.bruce@freescale.com>
The commit 67256678f0 add
the another global data pointer save, but in fact the
global data pointer will be initialized in the board_init_r,
so remove it such as the 85xx/83xx family.
Signed-off-by: Dave Liu <daveliu@freescale.com>
Acked-by: Kumar Gala <kumar.gala@freescale.com>
I believe these code was copied from 74xx family, but for
86xx, it is unused.
Signed-off-by: Dave Liu <daveliu@freescale.com>
Acked-by: Kumar Gala <kumar.gala@freescale.com>
We must invalidate TLBs before MMU turn on, but
currently the code is not, if there are some stale
TLB entry valid in the TLBs, it will cause strange
issue.
Signed-off-by: Dave Liu <daveliu@freescale.com>
Acked-by: Becky Bruce <becky.bruce@freescale.com>
This is needed in unlock_ram_in_cache() because it is called from C and
will corrupt the small data area anchor that is kept in R2.
lock_ram_in_cache() is modified similarly as good coding practice, but
is not called from C.
Signed-off-by: Nick Spence <nick.spence@freescale.com>
For some reason we duplicated the majority of code in lib_ppc/interrupts.c
Not know how that happened, but there is no good reason for it.
Use the interrupt_init_cpu() and timer_interrupt_cpu() since its why
they exist.
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
The tsec driver contains a hard-coded array of configuration information
for the tsec ethernet controllers. We create a default function that works
for most tsecs, and allow that to be overridden by board code. It creates
an array of tsec_info structures, which are then parsed by the corresponding
driver instance to determine configuration. Also, add regs, miiregs, and
devname fields to the tsec_info structure, so that we don't need the kludgy
"index" parameter.
Signed-off-by: Andy Fleming <afleming@freescale.com>
Signed-off-by: Ben Warren <biggerbadderben@gmail.com>
The main purpose of this rewrite it to be able to share the same
initialization code on all FSL PowerPC products that have DDR
controllers. (83xx, 85xx, 86xx).
The code is broken up into the following steps:
GET_SPD
COMPUTE_DIMM_PARMS
COMPUTE_COMMON_PARMS
GATHER_OPTS
ASSIGN_ADDRESSES
COMPUTE_REGS
PROGRAM_REGS
This allows us to share more code an easily allow for board specific code
overrides.
Additionally this code base adds support for >4G of DDR and provides a
foundation for supporting interleaving on processors with more than one
controller.
Signed-off-by: James Yang <James.Yang@freescale.com>
Signed-off-by: Jon Loeliger <jdl@freescale.com>
Signed-off-by: Becky Bruce <becky.bruce@freescale.com>
Signed-off-by: Ed Swarthout <Ed.Swarthout@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Move to using the environment variables 'ethaddr', 'eth1addr', etc..
instead of bd->bi_enetaddr, bi_enet1addr, etc.
This makes the code a bit more flexible to the number of ethernet
interfaces.
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
There is no point in disabling the icache on 7xx/74xx/86xx parts and not
also flushing the icache. All callers of invalidate_l1_instruction_cache()
call icache_disable() right after. Make it so icache_disable() calls
invalidate_l1_instruction_cache() for us.
Also, dcache_disable() already calls dcache_flush() so there is no point
in the explicit calls of dcache_flush().
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
This is needed because we will be possibly be locating
devices at physical addresses above 32bits, and the asm
preprocessing does not appear to deal with ULL constants
properly. We now call write_bat in lib_ppc/bat_rw.c.
Signed-off-by: Becky Bruce <becky.bruce@freescale.com>
Acked-by: Jon Loeliger <jdl@freescale.com>
Some boards that have external 16550 UARTs don't have a direct
tie between bi_busfreq and the clock used for the UARTs. Boards
that do have such a tie should set CFG_NS16550_CLK to be
get_bus_freq(0) -- which most of them do already.
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Acked-by: Kim Phillips <kim.phillips@freescale.com>
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>
This patch is the first step in cleaning up net/eth.c, by moving Ethernet
initialization to CPU or board-specific code. Initial implementation is
only on the Freescale TSEC controller, but others will be added soon.
Signed-off-by: Ben Warren <biggerbadderben@gmail.com>
With the new LAW interface (set_next_law) we can move to letting the
system allocate which LAWs are used for what purpose. This makes life
a bit easier going forward with the new DDR code.
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: Andy Fleming <afleming@freescale.com>
Acked-by: Jon Loeliger <jdl@freescale.com>
Acked-by: Becky Bruce <becky.bruce@freescale.com>
Currently, END_OF_RAM is used by the trap code to determine if
we should attempt to access the stack pointer or not. However,
on systems with a lot of RAM, only a subset of the RAM is
guaranteed to be mapped in and accessible. Change END_OF_RAM
to use get_effective_memsize() instead of using the raw ram
size out of the bd to prevent us from trying to access
non-mapped memory.
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>
The 7610 and related parts have an L2IP bit in the L2CR that is
monitored to signal when the L2 cache invalidate is complete whereas the
7450 and related parts utilize L2I for this purpose. However, the
current code does not account for this difference. Additionally the 86xx
L2 cache invalidate code used an "andi" instruction where an "andis"
instruction should have been used.
This patch addresses both of these bugs.
Signed-off-by: Travis Wheatley <travis.wheatley@freescale.com>
Acked-By: Jon Loeliger <jdl@freescale.com>
Some 86xx chips use CCB as the base clock for the I2C, and others used CCB/2.
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.
Signed-off-by: Timur Tabi <timur@freescale.com>
FSL has taken to using SVR[16:23] as an SOC sub-version field. This
is used to distinguish certain variants within an SOC family. To
account for this, we add the SVR_SOC_VER() macro, and update the SVR_*
constants to reflect the larger value. We also add SVR numbers for all
of the current variants. Finally, to make things neater, rather than
use an enormous switch statement to print out the CPU type, we create
and array of SVR/name pairs (using a macro), and print out the CPU name
that matches the SVR SOC version.
Signed-off-by: Andy Fleming <afleming@freescale.com>
This is the proper fix for a missing closing brace in the function
ft_cpu_setup() noticed by joe.hamman <at> embeddedspecialties.com.
The ft_cpu_setup() function in mpc8641hpcn.c should have been
removed earlier as it was under the obsolete CONFIG_OF_FLAT_TREE,
but was missed. Only, the sbc8641d was nominally still using it.
It all got ripped out, and the funcality that was in ft_board_setup()
was refactored to remove the CPU portions into the new file
cpu/mpc86xx/fdt.c instead. Make sbc8641d use this now.
Based loosely on an original patch from joe.hamman@embeddedspecialties.com
Signed-off-by: Jon Loeliger <jdl@freescale.com>
Update global_data to define i2c1_clk and i2c2_clk to 85xx and 86xx.
Update the get_clocks() function in 85xx and 86xx to determine the I2C
clock frequency and store it in gd->i2c1_clk and gd->i2c2_clk.
Signed-off-by: Timur Tabi <timur@freescale.com>
R29 was an unlucky choice as with recent toolchains (gcc-4.2.x) gcc
will refuse to use load/store multiple insns; instead, it issues a
list of simple load/store instructions upon function entry and exit,
resulting in bigger code size, which in turn makes the build for a
few boards fail.
Use r2 instead.
Signed-off-by: Wolfgang Denk <wd@denx.de>
