summaryrefslogtreecommitdiffstats
path: root/include/mpc86xx.h
Commit message (Collapse)AuthorAgeFilesLines
* powerpc/mpc86xx: Disable translation for BAT setupBecky Bruce2011-10-091-0/+1
| | | | | | | | | | | | | | | | | We really shouldn't be overwriting bat registers with translation enabled, especially when we're executing code using one of them for translating the current instruction stream. Instead, disable address translation while doing the final BAT setup. In order to do this, setup_bats has to move back to asm code, because we require translation to be enabled to have a stack for C code. The yucky thing about that is that the assembler doesn't like ULL so we have to switch to using HIGH/LOW pairs for physical addresses that are > 32 bits in length. Signed-off-by: Becky Bruce <beckyb@kernel.crashing.org> Acked-by: York Sun <yorksun@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* mpc86xx: set the DDR BATs after calculating true DDR sizeTimur Tabi2010-03-301-0/+2
| | | | | | | | | | | | | | | | | | | | After determining how much DDR is actually in the system, set DBAT0 and IBAT0 accordingly. This ensures that the CPU won't attempt to access (via speculation) addresses outside of actual memory. On 86xx systems, DBAT0 and IBAT0 (the BATs for DDR) are initialized to 2GB and kept that way. If the system has less than 2GB of memory (typical for an MPC8610 HPCD), the CPU may attempt to access this memory during speculation. The zlib code is notorious for generating such memory reads, and indeed on the MPC8610, uncompressing the Linux kernel causes a machine check (without this patch). Currently we are limited to power of two sized DDR since we only use a single bat. If a non-power of two size is used that is less than CONFIG_MAX_MEM_MAPPED u-boot will crash. Signed-off-by: Timur Tabi <timur@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* powerpc: Move duplicated BAT defines to mmu.hBecky Bruce2009-02-101-41/+0
| | | | | | | | | | | The BAT fields are architected; there's no need for these to be in cpu-specific files. Drop the duplication and move these to include/asm-ppc/mmu.h. Also, remove the BL_xxx defines that were only used by the alaska board, and switch to using the BATU_BL_xxx defines used by all the other boards. The BL_ defines previously in use had to be shifted into the proper position for use, which was inefficient. Signed-off-by: Becky Bruce <beckyb@kernel.crashing.org>
* mpc8[56]xx: Put localbus clock in sysinfo and gdTrent Piepho2008-12-191-0/+1
| | | | | | | | | | | | | | | | | | | | | | | 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>
* rename CFG_ macros to CONFIG_SYSJean-Christophe PLAGNIOL-VILLARD2008-10-181-3/+3
| | | | Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
* 83xx/85xx/86xx: factor out Freescale Localbus defines out of mpc83xx.hAnton Vorontsov2008-06-101-0/+2
| | | | | | | | | 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> Acked-by: Andy Fleming <afleming@freescale.com> Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
* [ppc] Fix build breakage for all non-4xx PowerPC variants.Rafal Jaworowski2007-06-221-1/+1
| | | | | - adapt to the more generic EXCEPTION_PROLOG and CRIT_EXCEPTION macros - minor 4xx cleanup
* Conditionalize 8641 Rev1.0 MCM workaroundsJames Yang2007-05-011-0/+9
| | | | | Signed-off-by: James Yang <James.Yang@freescale.com> Signed-off-by: Jon Loeliger <jdl@freescale.com>
* Cleanup even more poorly introduced whitespace.Jon Loeliger2006-08-221-7/+4
|
* Cleanup whitespaces and style issues.Jon Loeliger2006-04-271-3/+3
| | | | | | | Removed //-style comments. Use 80-column lines. Remove trailing whitespace. Remove dead code and debug cruft.
* Initial support for MPC8641 HPCN board.Jon Loeliger2006-04-261-0/+119
OpenPOWER on IntegriCloud