Commit graph

30 commits

Author SHA1 Message Date
Andrew Klossner
24ef76f320 Change the temp map to ROM to align addresses to page size.
With a page size of BOOKE_PAGESZ_16M, both the real and effective
addresses must be multiples of 16MB.  The hardware silently truncates
them so the code happens to work.  This patch clarifies the situation
by establishing addresses that the hardware doesn't need to truncate.

Signed-off-by: Andrew Klossner <andrew@cesa.opbu.xerox.com>
Signed-off-by: Andy Fleming <afleming@freescale.com>
2008-07-14 18:46:32 -05:00
Wolfgang Denk
53677ef18e Big white-space cleanup.
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>
2008-05-21 00:14:08 +02:00
Kumar Gala
2b22fa4bae 85xx: Don't icbi when unlocking the cache
There is no reason to icbi when invalidating the temporary stack in
the d-cache.  Its impossible on e500 to have the i-cache contain
any addresses in the temp stack and it can be problematic in generating
transactions on the bus to non-valid addresses.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-02-27 16:30:47 -06:00
Andy Fleming
21fae8b2b4 Invalidate INIT_RAM TLB mappings
Commit 0db37dc...  (and some others) changed the INIT_RAM TLB
mappings to be unguarded.  This collided with an existing "bug"
where the mappings for the INIT_RAM were being kept around.
This meant that speculative loads to those addresses were
succeeding in the TLB, and going out to the bus, where they
were causing an exception (there's nothing at that address). The
Flash code was coincidentally causing such a speculative load.
Rather than go back to mapping the INIT RAM as guarded, we fix
it so that the entries for the INIT_RAM are invalidated.  Thus
the speculative loads will fail in the TLB, and have no effect.

Signed-off-by: Andy Fleming <afleming@freescale.com>
2008-02-27 16:28:48 -06:00
Rafal Jaworowski
f57d7d364c ppc: Refactor cache routines, so there is only one common set.
Signed-off-by: Rafal Jaworowski <raj@semihalf.com>
2008-02-14 22:00:41 +01:00
Kumar Gala
8716318057 85xx: Reworked initial processor init
Reworked the initial processor initialzation sequence:
* introduced cpu_early_init_f that is run in address space 1 (AS=1)
* Moved TLB/LAW and CCSR init into cpu_early_init_f()
* Reworked initial asm code to do most of the core init before TLBs

The main reasons for these changes are to allow handling of 36-bit phys
addresses in the future and some of the issues that will exist when we
do that.

There are a few caveats on what can be initialized via the LAW and TLB
static tables:
* TLB entry 14/15 can't be initialized via the TLB table
* any LAW that covers the implicit boot window (4G-8M to 4G) must map to
  the code that is currently executing.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-01-17 02:04:53 -06:00
Kumar Gala
54a5070115 85xx: Remove old style of LAW init
All boards are now using the new fsl_law code so we can drop the old version.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-01-16 23:21:56 -06:00
Kumar Gala
83d40dfd79 85xx: Move LAW init code into C
Move the initialization of the LAWs into C code and provide an API
to allow modification of LAWs after init.

Board code is responsible to provide a law_table and num_law_entries.

We should be able to use the same code on 86xx as well.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-01-16 23:21:55 -06:00
Kumar Gala
b009f3eca9 85xx: Remove cache config from configs.h
Either use the standard defines in asm/cache.h or grab the information
at runtime from the L1CFG SPR.

Also, minor cleanup in cache.h to make the code a bit more readable.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-01-09 16:25:04 -06:00
Wolfgang Denk
992742a5b0 Cleanup coding style; update CHANGELOG
Signed-off-by: Wolfgang Denk <wd@denx.de>
2007-11-03 23:09:27 +01:00
urwithsughosh@gmail.com
1e701e7013 MSR overwrite fix
Hello,
  This patch fixes the MSR overwrite in the start.S when moving out of
  the last 4K page.

Signed-off-by: Sughosh Ganu <urwithsughosh@gmail.com>
2007-10-19 13:13:27 -05:00
Kumar Gala
e1ce3cb617 Remove magic numbers from cache related operations for mpc85xx
The mpc85xx start code uses some magic numbers that we actually
have #defines for in <config.h> so use those instead.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-10-19 11:25:01 -05:00
Ed Swarthout
1487adbdcf 85xx io out functions need sync after write.
This fixes the mc146818 rtc_read/write functions for 85xx.

Signed-off-by: Ed Swarthout <Ed.Swarthout@freescale.com>
2007-09-26 16:50:02 -05:00
Kumar Gala
3db0bef59e Use an absolute address when jumping out of 4k boot page
On e500 when we leave the 4k boot page we should use an absolute address since
we don't know where the board code may want us to be really running at.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-08-14 01:45:09 -05:00
Andy Fleming
61a21e980a 85xx start.S cleanup and exception support
From: Ed Swarthout <Ed.Swarthout@freescale.com>

Support external interrupts from platform to eliminate system hangs.
Define CONFIG_INTERRUPTS board configure option to enable.
Enable ecm, ddr, lbc, and pci/pcie error interrupts in PIC.

Remove extra cpu initialization redundant with hardware initialization.
Whitespace cleanup.

Define and use _START_OFFSET consistent with other processors using
ppc_asm.tmpl

Move additional code from .text to boot page to make room for
exception vectors at start of image.

Handle Machine Check, External and Critical exceptions.

Fix e500 machine check error determination in traps.c

TEXT_BASE can now be 0xfffc_0000 - which cuts binary image in half.

Signed-off-by: Ed Swarthout <Ed.Swarthout@freescale.com>
Acked-by: Andy Fleming <afleming@freescale.com>
2007-08-14 01:34:21 -05:00
Rafal Jaworowski
02032e8f14 [ppc] Fix build breakage for all non-4xx PowerPC variants.
- adapt to the more generic EXCEPTION_PROLOG and CRIT_EXCEPTION macros
- minor 4xx cleanup
2007-06-22 14:58:04 +02:00
Zang Roy-r61911
63247a5acd u-boot: v2: Remove the fixed TLB and LAW entrynubmer
Remove the fixed TLB and LAW entry nubmer. Use actually TLB and LAW
entry number to control the loop.  This can reduce the potential risk
for the 85xx processor increasing its TLB adn LAW entry number.

Signed-off-by: Swarthout Edward <swarthout@freescale.com>
Signed-off-by: Roy Zang <tie-fei.zang@freescale.com>
2007-04-23 19:58:27 -05:00
Wolfgang Denk
b38dbd4622 Fix bug in [id]cache_status commands for MPC85xx processors;
should look at LSB of L1CSRn registers to determine if L1 cache is
enabled, not the MSB.
Patch by Murray Jensen, 19 Jul 2005
2006-03-13 00:46:05 +01:00
Wolfgang Denk
99b0d2851a Added support for KwikByte KB920x boards (based on AT91RM9200)
Patch by Matt ?? <kb9200_dev@kwikbyte.com>, 27 Apr 2005
2005-10-05 00:19:34 +02:00
Wolfgang Denk
7d314992a8 E500 update: repoint IVPR to RAM when code is relocated
Patch by Kylo Ginsberg, 13 Apr 2005
2005-10-05 00:00:54 +02:00
Wolfgang Denk
cbf9c11728 Merge with /home/wd/git/u-boot/master 2005-08-05 11:22:28 +02:00
Wolfgang Denk
3e0bc4473a Fix typos in cpu/85xx/start.S which caused DataTLB exception to be
routed to the Watchdog handler
Patch by Eugene Surovegin, 18 Jun 2005
2005-08-04 01:24:19 +02:00
Lunsheng Wang
b0e3294923 * Patch by Ron Alder, 11 July 2005
Add Xianghua Xiao and Lunsheng Wang's support for the
    GDA MPC8540 EVAL board.
2005-07-29 10:20:29 -05:00
Jon Loeliger
d9b94f28a4 * Patch by Jon Loeliger, 2005-05-05
Implemented support for MPC8548CDS board.
  Added DDR II support based on SPD values for MPC85xx boards.
  This roll-up patch also includes bugfies for the previously
  published patches:
    DDRII CPO, pre eTSEC, 8548 LBIU, Andy's TSEC, eTSEC 3&4 I/O
2005-07-25 14:05:07 -05:00
wdenk
343117bf12 Fix timer handling on MPC85xx systems 2005-05-13 22:49:36 +00:00
wdenk
9aea95307f Patch by Jon Loeliger, 16 Jul 2004:
- support larger DDR memories up to 2G on the PC8540/8560ADS and
  STXGP3 boards
- Made MPC8540/8560ADS be 33Mhz PCI by default.
- Removed moldy CONFIG_RAM_AS_FLASH, CFG_FLASH_PORT_WIDTH_16
  and CONFIG_L2_INIT_RAM options.
- Refactor Local Bus initialization out of SDRAM setup.
- Re-implement new version of LBC11/DDR11 errata workarounds.
- Moved board specific PCI init parts out of CPU directory.
- Added TLB entry for PCI-1 IO Memory
- Updated README.mpc85xxads
2004-08-01 23:02:45 +00:00
wdenk
0ac6f8b749 Patch by Jon Loeliger, 17 June 2004:
Completion of the 8540ADS/8560ADS updates:
Fix some PCI and Rapid I/O memory maps,
Initialize both TSEC 1 and 2,
Initialize SDRAM
Update MAINTAINER for 85xx boards and README.mpc85xxads
2004-07-09 23:27:13 +00:00
wdenk
97d80fc391 Patches Part 1 by Jon Loeliger, 11 May 2004:
Dynamically handle REV1 and REV2 MPC85xx parts.
  (Jon Loeliger, 10-May-2004).
New consistent memory map and Local Access Window across MPC85xx line.
New CCSRBAR at 0xE000_0000 now.
Add RAPID I/O memory map.
New memory map in README.MPC85xxads
  (Kumar Gala, 10-May-2004)
Better board and CPU identification on MPC85xx boards at boot.
  (Jon Loeliger, 10-May-2004)
SDRAM clock control fixes on MPC8540ADS & MPC8560 boards.
Some configuration options for MPC8540ADS & MPC8560ADS cleaned up.
  (Jim Robertson, 10-May-2004)
Rewrite of the MPC85xx Three Speed Ethernet Controller (TSEC) driver.
Supports multiple PHYs.
  (Andy Fleming, 10-May-2004)
Some README.MPC85xxads updates.
  (Kumar Gala, 10-May-2004)
Copyright updates for "Freescale"
  (Andy Fleming, 10-May-2004)
2004-06-09 00:34:46 +00:00
wdenk
a57a496f4d * Patch by Xiao Xianghua, 23 Oct 2003:
small patch for mpc85xx

* Fix small problem in MPC5200 I2C driver

* Fix FCC3 support on ATC board
2003-10-26 22:52:58 +00:00
wdenk
42d1f0394b * Patches by Xianghua Xiao, 15 Oct 2003:
- Added Motorola CPU 8540/8560 support (cpu/85xx)
  - Added Motorola MPC8540ADS board support (board/mpc8540ads)
  - Added Motorola MPC8560ADS board support (board/mpc8560ads)

* Minor code cleanup
2003-10-15 23:53:47 +00:00